/* BeniBella LMS — identity: deep iris indigo + coral ember on warm paper.
   Structure borrowed from Canvas: fixed global rail, course left-nav, card dashboards. */
:root{
  --iris:#3B3486; --iris-d:#272253; --ink:#232135;
  --paper:#FAF9F6; --card:#FFFFFF; --line:#E4E1DA;
  --coral:#E2604C; --coral-d:#B94834;
  --leaf:#4F7A5B; --amber:#C98A1B; --muted:#6B6880;
  --r:12px; --shadow:0 1px 3px rgba(35,33,53,.08),0 8px 22px rgba(35,33,53,.06);
  --disp:'Bricolage Grotesque',system-ui,sans-serif; --body:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--body);background:var(--paper);color:var(--ink);font-size:14.5px;line-height:1.55}
.hidden{display:none!important}
h1,h2,h3{font-family:var(--disp);font-weight:700;color:var(--iris-d);line-height:1.15}
h1{font-size:25px;margin:0 0 6px} h2{font-size:19px;margin:20px 0 8px} h3{font-size:15.5px;margin:12px 0 6px}
a{color:var(--iris)}
:focus-visible{outline:2px solid var(--coral);outline-offset:2px}
label{display:block;font-size:13px;font-weight:600;color:var(--iris-d);margin-bottom:10px}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;font:inherit;font-size:14px;margin-top:4px;background:#fff}
textarea{min-height:80px;resize:vertical}
.err{color:var(--coral-d);font-size:13px;margin-top:8px;min-height:16px}
.okmsg{color:var(--leaf);font-size:13px;margin-top:4px}
.help{font-size:12.5px;color:var(--muted);font-weight:400}

.btn{border:1px solid var(--line);background:#fff;color:var(--iris-d);border-radius:9px;padding:8px 14px;font-size:13.5px;font-weight:600;cursor:pointer}
.btn:hover{background:#F1EFEA}
.btn.primary{background:var(--iris);border-color:var(--iris);color:#fff}
.btn.primary:hover{background:var(--iris-d)}
.btn.coral{background:var(--coral);border-color:var(--coral-d);color:#fff}
.btn.coral:hover{background:var(--coral-d)}
.btn.danger{color:var(--coral-d);border-color:#EBC6BE}
.btn.wide{width:100%;padding:11px}
.btn.sm{padding:4px 9px;font-size:12.5px}

/* auth */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(1200px 700px at 20% -10%, #4B429E 0%, var(--iris-d) 55%, #1B1839 100%)}
.auth-card{background:var(--card);border-radius:18px;box-shadow:var(--shadow);padding:34px;max-width:430px;width:100%}
.brand-lg{font-family:var(--disp);font-size:30px;font-weight:700;color:var(--iris-d)}
.brand-lg span{color:var(--coral)}
.auth-sub{color:var(--muted);font-size:13.5px;margin:8px 0 18px}
.auth-tabs{display:flex;gap:6px;margin-bottom:14px}
.auth-tabs button{flex:1;padding:9px;border:1px solid var(--line);background:#fff;border-radius:9px;cursor:pointer;font-weight:600;color:var(--muted)}
.auth-tabs button.on{background:var(--iris);color:#fff;border-color:var(--iris)}

/* app shell: Canvas-style rail */
.app{display:grid;grid-template-columns:92px 1fr;min-height:100vh}
.rail{background:var(--iris-d);display:flex;flex-direction:column;align-items:stretch;padding:10px 8px;gap:4px;position:sticky;top:0;height:100vh}
.rail-brand{font-family:var(--disp);font-weight:700;color:#fff;background:var(--coral);border-radius:12px;
  width:46px;height:46px;display:flex;align-items:center;justify-content:center;font-size:18px;margin:4px auto 12px}
.rail-btn{background:transparent;border:none;color:#C9C4E4;border-radius:10px;padding:9px 4px;font-size:11px;font-weight:600;
  cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;font-family:var(--body)}
.rail-btn .ri{font-size:19px}
.rail-btn:hover{background:rgba(255,255,255,.08);color:#fff}
.rail-btn.on{background:var(--paper);color:var(--iris-d)}
.rail-spacer{flex:1}
main{padding:24px 30px;max-width:1280px;width:100%}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-top:14px}
.course-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;cursor:pointer;box-shadow:var(--shadow);transition:transform .12s}
.course-card:hover{transform:translateY(-2px)}
.cc-band{height:74px;position:relative}
.cc-band .cc-code{position:absolute;left:14px;bottom:10px;color:#fff;font-family:var(--disp);font-weight:700;font-size:16px;text-shadow:0 1px 3px rgba(0,0,0,.35)}
.cc-body{padding:12px 14px}
.cc-title{font-weight:700;color:var(--iris-d);font-size:14.5px}
.cc-meta{font-size:12px;color:var(--muted);margin-top:3px}
.pill{display:inline-block;border-radius:99px;padding:2px 9px;font-size:11px;font-weight:700}
.pill.ok{background:#E5EFE7;color:#2F5A3C}.pill.warn{background:#F7ECD6;color:#7C5A12}
.pill.late{background:#F8E2DC;color:#93331F}.pill.info{background:#E6E4F4;color:#3B3486}
.pill.pend{background:#F7ECD6;color:#7C5A12}.pill.susp{background:#F8E2DC;color:#93331F}

/* course page: Canvas-style course nav */
.course-shell{display:grid;grid-template-columns:185px 1fr;gap:22px}
.cnav{display:flex;flex-direction:column;gap:2px;position:sticky;top:20px;height:fit-content}
.cnav button{text-align:left;background:transparent;border:none;border-left:3px solid transparent;padding:9px 12px;
  font:inherit;font-size:13.5px;font-weight:600;color:var(--muted);cursor:pointer;border-radius:0 8px 8px 0}
.cnav button:hover{background:#F1EFEA;color:var(--iris-d)}
.cnav button.on{color:var(--coral-d);border-left-color:var(--coral);background:#FBF3F1}
.course-head{border-radius:14px;padding:18px 20px;color:#fff;margin-bottom:18px}
.course-head h1{color:#fff;margin:0}
.course-head .help{color:rgba(255,255,255,.85)}

/* tables */
.tbl-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table{border-collapse:collapse;width:100%;font-size:13px}
th{background:var(--iris);color:#fff;text-align:left;padding:8px 11px;font-weight:600;white-space:nowrap;position:sticky;top:0}
td{border-top:1px solid var(--line);padding:8px 11px;vertical-align:top}
tr:nth-child(even) td{background:#FBFAF8}

/* modules accordion */
.mod{border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:10px;overflow:hidden}
.mod-head{display:flex;align-items:center;gap:10px;padding:12px 15px;background:#F4F2EC;font-weight:700;color:var(--iris-d)}
.mod-item{display:flex;align-items:center;gap:10px;padding:10px 15px;border-top:1px solid var(--line);font-size:13.5px}
.mod-item .mi-ico{width:24px;text-align:center}

/* assignment list */
.asg{display:flex;align-items:center;gap:14px;padding:13px 15px;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:9px}
.asg .a-main{flex:1}
.asg .a-title{font-weight:700;color:var(--iris-d);cursor:pointer}
.asg .a-due{font-size:12px;color:var(--muted)}

/* toast + modal */
#toastHost{position:fixed;bottom:18px;right:18px;z-index:99;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--ink);color:#fff;padding:11px 16px;border-radius:10px;box-shadow:var(--shadow);font-size:13.5px;max-width:340px;animation:pop .2s}
.toast.ok{border-left:4px solid var(--leaf)} .toast.err{border-left:4px solid var(--coral)}
@keyframes pop{from{transform:translateY(8px);opacity:0}}
.modal-bg{position:fixed;inset:0;background:rgba(35,33,53,.55);z-index:80;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:#fff;border-radius:16px;max-width:720px;width:100%;max-height:88vh;overflow:auto;padding:22px}
.modal h2{margin-top:0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:12px 0}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px}
.kpi .n{font-family:var(--disp);font-size:25px;color:var(--iris)}
.kpi .l{font-size:12px;color:var(--muted)}

@media (max-width:900px){
  .app{grid-template-columns:1fr}
  .rail{flex-direction:row;height:auto;position:sticky;top:0;z-index:50;overflow-x:auto;padding:8px}
  .rail-brand{margin:0 8px 0 0;flex-shrink:0}
  .rail-btn{flex-direction:row;gap:6px;padding:8px 10px;font-size:12px;white-space:nowrap}
  .rail-spacer{display:none}
  main{padding:16px}
  .course-shell{grid-template-columns:1fr}
  .cnav{flex-direction:row;overflow-x:auto;position:static}
  .cnav button{border-left:none;border-bottom:3px solid transparent;border-radius:8px 8px 0 0;white-space:nowrap}
  .cnav button.on{border-bottom-color:var(--coral)}
  .grid2,.grid3{grid-template-columns:1fr}
}

/* frozen first column for wide grids (attendance register, gradebook) */
.tbl-wrap table.sticky1 th:first-child, .tbl-wrap table.sticky1 td:first-child{
  position:sticky;left:0;z-index:3;background:#fff;box-shadow:2px 0 0 var(--line)}
.tbl-wrap table.sticky1 thead th:first-child{z-index:6;background:var(--iris)}
.tbl-wrap table.sticky1 tr:nth-child(even) td:first-child{background:#FBFAF8}

/* sticky tables need separate borders in Safari; reinforce freeze */
.tbl-wrap table.sticky1{border-collapse:separate;border-spacing:0}
.tbl-wrap table.sticky1 th:first-child,.tbl-wrap table.sticky1 td:first-child{min-width:150px;max-width:190px}

/* CRITICAL FIX: let grid children shrink so tables scroll inside .tbl-wrap
   (this is what makes frozen columns engage, and stops whole-page sideways scroll) */
main{min-width:0}
.course-shell{min-width:0}
.course-shell > *{min-width:0}
#cBody{min-width:0;max-width:100%}
.tbl-wrap{max-width:100%}


/* ══════════ v2.2: quiz taking, sections, results grid ══════════ */
.qz-take{font-size:18px;line-height:1.65}
.qz-take .qz-qtext{font-size:21px;margin:2px 0 10px}
.qz-focus .qz-q{display:none}
.qz-focus .qz-q.qz-active{display:block;animation:qzin .25s ease}
.qz-focus .qz-section{display:none}
.qz-focus .qz-section.qz-active{display:block}
@keyframes qzin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.qz-section{background:linear-gradient(90deg,#6d28d9,#db2777);color:#fff;padding:12px 20px;border-radius:14px;
  font-weight:800;font-size:19px;margin:16px 0 10px;letter-spacing:.3px;box-shadow:0 6px 18px rgba(109,40,217,.25)}
.qz-opt{display:flex;gap:12px;align-items:center;font-weight:500;font-size:18px;padding:12px 16px;
  border:2px solid var(--line);border-radius:14px;margin:8px 0;cursor:pointer;transition:all .15s}
.qz-opt:hover{border-color:#6d28d9;background:rgba(109,40,217,.06)}
.qz-opt:has(input:checked){border-color:#6d28d9;background:rgba(109,40,217,.12);font-weight:700}
.qz-opt input{width:auto;transform:scale(1.35)}
.qz-in{font-size:18px;padding:12px 14px}
.qz-img{max-width:100%;max-height:340px;border-radius:14px;margin:6px 0 12px;display:block;box-shadow:0 4px 14px rgba(0,0,0,.12)}
.qz-topbar{position:sticky;top:0;z-index:6;display:flex;gap:10px;align-items:center;padding:10px 16px;flex-wrap:wrap}
.qz-nav{display:flex;gap:10px;align-items:center;justify-content:space-between;position:sticky;bottom:10px;z-index:6;padding:10px 16px}
.qz-nav .btn{font-size:17px;padding:10px 20px}
.qz-fb{background:rgba(16,185,129,.1);border-left:4px solid #10b981;padding:8px 12px;border-radius:8px;margin-top:6px;font-size:14px}
.qz-grid th{white-space:nowrap;text-align:center}
.qz-grid td.ok{background:rgba(16,185,129,.18);text-align:center;font-weight:700;color:#047857}
.qz-grid td.bad{background:rgba(239,68,68,.15);text-align:center;font-weight:700;color:#b91c1c}
.qz-grid td.na{text-align:center;color:#9ca3af}
@media(max-width:760px){
  .qz-take{font-size:17px}
  .qz-take .qz-qtext{font-size:19px}
  .qz-topbar{padding:8px 10px}
}

/* v2.3.3: quiz settings — 2-column colour-coded sections with solid heading bars */
.modal.qz-wide{max-width:1020px}
.qz-set{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.qz-sec{border-radius:14px;border:1.5px solid var(--line);overflow:hidden;background:#fff}
.qz-sec h4{margin:0 0 10px;font-size:15px;font-weight:800;color:#fff;padding:9px 14px;letter-spacing:.3px}
.qz-sec > label, .qz-sec > p{margin:0 12px 10px;display:block}
.qz-sec-a{border-color:#3B3486}.qz-sec-a h4{background:linear-gradient(90deg,#3B3486,#5b4fc9)}
.qz-sec-b{border-color:#0f766e}.qz-sec-b h4{background:linear-gradient(90deg,#0f766e,#14b8a6)}
.qz-sec-c{border-color:#b45309}.qz-sec-c h4{background:linear-gradient(90deg,#b45309,#f59e0b)}
.qz-sec-d{border-color:#be185d}.qz-sec-d h4{background:linear-gradient(90deg,#be185d,#ec4899)}
.qz-sec label{font-weight:700;font-size:13.5px}
.qz-chk{display:flex;gap:8px;align-items:center;font-weight:500}
.qz-chk input{width:auto;margin:0}
.qz-off{opacity:.45;pointer-events:none}
@media(max-width:860px){.qz-set{grid-template-columns:1fr}.modal.qz-wide{max-width:96vw}}
.qz-mast{margin-top:8px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.qz-q.qz-right{border:2px solid #10b981;background:rgba(16,185,129,.06)}
.qz-shake{animation:qzshake .4s}
@keyframes qzshake{0%,100%{transform:translateX(0)}25%{transform:translateX(-7px)}75%{transform:translateX(7px)}}

/* v2.4: academic calendar + create-course + weekly schedule */
.modal.cal-full{max-width:96vw;width:96vw;max-height:94vh}
.cc-set{grid-template-columns:1fr 1fr 1fr}
@media(max-width:1000px){.cc-set{grid-template-columns:1fr}}
.cal-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.cal-pick{display:flex;gap:6px;align-items:center;margin:0;font-weight:700}
.cal-pick input{width:auto}
.cal-mode{border:2px solid var(--line);border-radius:999px;padding:6px 14px;cursor:pointer;font-weight:800;margin:0;user-select:none}
.cal-mode.on{border-color:#3B3486;background:rgba(59,52,134,.12)}
.cal-wrap{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.cal-month{border:1.5px solid var(--line);border-radius:12px;padding:10px}
.cal-month h5{margin:0 0 8px;text-align:center;font-size:14px;color:#3B3486}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:3px;text-align:center}
.cal-grid b{font-size:9.5px;color:#8b87a8}
.cal-d{font-size:12.5px;font-weight:700;padding:4px 0;border-radius:8px;cursor:pointer;border:2px solid transparent;line-height:1.35}
.cal-d:hover{background:rgba(59,52,134,.1)}
.cal-we{color:#c05b5b}
.cal-off{opacity:.25;pointer-events:none}
.cal-hol{border-color:#dc2626 !important;border-radius:50% !important;color:#dc2626;font-weight:900}
.cal-ex{border-color:#dc2626 !important;border-radius:4px !important;background:rgba(220,38,38,.12);font-weight:900}
.cal-tot{display:flex;gap:8px;justify-content:center;margin-top:8px;font-size:11px;color:#6b6790}
.cal-tot b{color:#3B3486;margin-left:2px}
.cal-grand{margin-top:12px;font-weight:800;background:linear-gradient(90deg,#3B3486,#5b4fc9);color:#fff;border-radius:12px;padding:10px 16px;display:flex;gap:14px;flex-wrap:wrap}
.cal-grand b{color:#F6C468}
.cal-key{display:inline-block;width:22px;text-align:center;font-weight:900;padding:2px 0}
.cal-sched th{background:#3B3486;color:#fff;padding:8px}
.cal-sched td{border:1.5px solid var(--line);text-align:center;cursor:pointer;min-width:120px;padding:8px;font-weight:700;color:#8b87a8}
.cal-sched td:hover{background:rgba(59,52,134,.08)}
.cal-sched td.on{background:rgba(79,122,91,.15);border-color:#4F7A5B;color:#1e293b}
.cal-sched td.on input{margin-top:4px;font-size:12px;padding:5px 8px}

/* v2.4.1: calendar legend + attention pulse */
.cal-legend{margin-top:10px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:820px){.cal-legend{grid-template-columns:1fr}}
.cal-legend > div{border:1.5px solid var(--line);border-radius:12px;padding:10px 14px;font-size:13px}
.cal-legend b{display:block;margin-bottom:6px}
.cal-legend span{display:block;padding:2px 0;color:#4b4768}
.pulse{animation:pulsebtn 1.2s ease infinite;outline:3px solid rgba(226,96,76,.5)}
@keyframes pulsebtn{0%,100%{transform:scale(1)}50%{transform:scale(1.045)}}

/* v2.4.2: dropzone */
.dz{border:2px dashed var(--line);border-radius:12px;padding:12px;margin:0 12px 12px;text-align:center;cursor:pointer;font-size:13px;transition:all .15s}
.dz.dz-hot,.dz:hover{border-color:#0f766e;background:rgba(16,122,87,.06)}

/* v2.4.3: always-available calendar button in the course nav */
.cal-nav{margin-top:8px;border:1.5px solid #3B3486 !important;color:#3B3486 !important;border-radius:10px !important;font-weight:800}

/* v2.4.6: prominent wizard footer + grouped attendance toolbar + small-screen calendar */
.cal-foot{position:sticky;bottom:0;background:#fff;display:flex;gap:12px;align-items:center;flex-wrap:wrap;
  padding:12px 4px;margin-top:8px;border-top:2px solid var(--line);z-index:5}
.cal-cta{font-size:20px;padding:14px 26px;font-weight:800;box-shadow:0 6px 18px rgba(59,52,134,.35)}
.cal-chips{background:linear-gradient(90deg,#3B3486,#5b4fc9);color:#fff;border-radius:12px;padding:10px 16px;font-size:14px;white-space:nowrap}
.cal-chips i{font-style:normal;color:#F6C468;font-weight:900;margin:0 6px 0 2px}
.cal-edit .cal-grand{display:none}
.att-flow{display:flex;flex-direction:column;gap:8px}
.att-step{display:flex;gap:8px;align-items:center;flex-wrap:wrap;border:1.5px solid var(--line);border-radius:12px;padding:8px 12px}
.att-step > b{min-width:110px;color:#3B3486}
@media(max-width:760px){
  .cal-cta{font-size:17px;padding:12px 16px;width:100%}
  .cal-foot{gap:8px}
  .cal-chips{white-space:normal;font-size:12.5px}
  .cal-tools{gap:6px}
  .att-step > b{min-width:100%}
}

/* v2.5: assignment drag, rubric grids, group grading */
.asg .drag-h{cursor:grab;color:#8b87a8;font-size:18px;padding:0 6px;user-select:none}
.asg.dragging{opacity:.4}
.asg.drop-hint{outline:3px dashed #3B3486;outline-offset:-3px}
.rub-grid{border-collapse:collapse;width:100%;font-size:12.5px}
.rub-grid th,.rub-grid td{border:1.5px solid var(--line);padding:6px;vertical-align:top}
.rub-grid thead th{background:#3B3486;color:#fff;padding:8px}
.rub-grid tbody th{background:#F3F1FB;min-width:120px;text-align:left}
.rub-grid textarea{width:100%;min-height:40px;font-size:12px;margin:2px 0 0;padding:5px 7px}
.rub-grid input{margin:0 0 2px}
.rub-click .rub-cell{cursor:pointer;min-width:130px;transition:background .12s}
.rub-click .rub-cell:hover{background:rgba(59,52,134,.08)}
.rub-click .rub-cell.on{background:rgba(79,122,91,.18);outline:3px solid #4F7A5B;outline-offset:-3px}
.rub-click .rub-cell div{font-size:11.5px;color:#5c5880;margin-top:3px}
.grp-grade{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:12px}
.grp-card{border:1.5px solid var(--line);border-radius:14px;padding:12px}
.grp-head{font-weight:800;color:#3B3486;margin-bottom:6px}
.grp-mem{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:4px}
.grp-row{display:flex;gap:8px;align-items:center;margin-top:8px;flex-wrap:wrap}
@media(max-width:700px){.grp-grade{grid-template-columns:1fr}.rub-click .rub-cell{min-width:110px}}

/* v2.6: learning mastery gradebook */
.lm-cell{text-align:center;font-weight:800;min-width:64px}
.lm-ok{background:rgba(16,185,129,.18);color:#065f46}
.lm-mid{background:rgba(245,158,11,.18);color:#92400e}
.lm-low{background:rgba(220,38,38,.15);color:#991b1b}
.lm-none{color:#b6b2cf}

/* v2.6.1: prominent paste-from-word */
.rub-paste{background:linear-gradient(90deg,#0f766e,#14b8a6);color:#fff;font-size:15.5px;font-weight:800;padding:11px 18px;border:none}
.rub-paste:hover{filter:brightness(1.08)}

/* v2.7: chart legend */
.oc-legend{display:flex;gap:16px;flex-wrap:wrap;margin:4px 0 8px;font-weight:800}
.oc-legend i{display:inline-block;width:16px;height:16px;border-radius:5px;margin-right:6px;vertical-align:-2px}

/* v2.7.1: sidebar — obvious active tab, drag hint, Calendar as a normal item */
.cnav button{transition:background .12s,color .12s}
.cnav button.on{background:#3B3486 !important;color:#fff !important;font-weight:800;border-radius:10px;box-shadow:0 3px 10px rgba(59,52,134,.3)}
.cnav button.drop-hint{outline:2px dashed #3B3486;outline-offset:-2px}
.cal-item{margin-top:8px;color:#3B3486;font-weight:800}
.cal-item:hover{background:rgba(59,52,134,.1);border-radius:10px}

/* v2.8: dashboard hub */
.hub-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px;margin:12px 0}

/* v2.8.1: compact hub + help search */
.hub-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;margin:10px 0}
.hub-card{padding:12px 14px}
.hub-card h3{margin:0 0 8px;font-size:15px}
.hub-row{display:flex;gap:6px;align-items:center;flex-wrap:wrap;padding:5px 8px;border-radius:9px;font-size:13px;cursor:pointer}
.hub-row:hover{background:rgba(59,52,134,.07)}
.hlp-bar{position:relative;display:flex;gap:8px;align-items:center;margin:0 0 10px}
.hlp-bar input{flex:1;margin:0}
.hlp-out{position:absolute;top:100%;left:0;right:0;background:#fff;border:1.5px solid var(--line);border-radius:12px;box-shadow:0 14px 34px rgba(0,0,0,.16);z-index:60;max-height:60vh;overflow:auto}
.hlp-hit{padding:10px 14px;cursor:pointer;border-bottom:1px solid var(--line)}
.hlp-hit:hover{background:rgba(59,52,134,.06)}
.hlp-hit:last-child{border-bottom:none}

/* v2.8.2: gradebook ID column (double sticky) */
.gbt th.stickA,.gbt td.stickA{position:sticky;left:0;min-width:62px;max-width:62px;z-index:4;font-size:10.5px}
.gbt thead th.stickA{z-index:8;background:var(--iris)}
.gbt td.stickA{background:#fff}
.gbt tr:nth-child(even) td.stickA{background:#FBFAF8}
.gbt th.stick,.gbt td.stick{left:62px !important}

/* v2.9: quiz drag-to-folder */
.qz-folder summary.drop-hint,h3.drop-hint{outline:3px dashed #3B3486;outline-offset:3px;border-radius:10px;background:rgba(59,52,134,.06)}
.qz-card{cursor:grab}
.qz-card:active{cursor:grabbing}

/* v3.1: planner — dots, day panel sections, type pills */
.cal-d{position:relative}
.day-dots{position:absolute;left:0;right:0;bottom:1px;display:flex;gap:2px;justify-content:center}
.dd{display:inline-block;width:6px;height:6px;border-radius:50%}
.dd-deadline{background:#dc2626}.dd-todo{background:#3B3486}.dd-appt{background:#0f766e}
.dd-reminder{background:#d97706}.dd-journal{background:#a16207}.dd-att{background:#94a3b8}
.plan-sec{border-radius:12px;padding:10px 14px;margin:8px 0;border-left:5px solid}
.plan-deadline{background:rgba(220,38,38,.07);border-color:#dc2626}
.plan-todo{background:rgba(59,52,134,.06);border-color:#3B3486}
.plan-appt{background:rgba(15,118,110,.07);border-color:#0f766e}
.plan-reminder{background:rgba(217,119,6,.08);border-color:#d97706}
.plan-att{background:rgba(100,116,139,.08);border-color:#64748b}
.plan-journal{background:rgba(161,98,7,.07);border-color:#a16207}
.plan-item{display:flex;gap:8px;align-items:flex-start;margin:6px 0}
.plan-done span{text-decoration:line-through;opacity:.55}
.pt{border-radius:999px;padding:2px 9px;font-size:11.5px;font-weight:800;color:#fff}
.pt-deadline{background:#dc2626}.pt-todo{background:#3B3486}.pt-appt{background:#0f766e}.pt-reminder{background:#d97706}

/* v3.1.1: schedule grid responsive */
.cal-sched{min-width:640px}
.cal-sched th,.cal-sched td{min-width:86px}
.cal-noop{background:transparent !important;border:none !important;cursor:default !important}
@media(max-width:760px){.cal-sched{min-width:560px;font-size:12px}.cal-sched th,.cal-sched td{min-width:72px;padding:6px 4px}}

/* v3.2.1: QR studio emphasis */
.qr-more{cursor:pointer;font-weight:900;font-size:16.5px;background:linear-gradient(90deg,#3B3486,#5b4fc9);color:#F6C468;padding:10px 16px;border-radius:12px;display:inline-block}
.qr-more:hover{filter:brightness(1.1)}
.qr-live{font-size:16.5px;font-weight:800;padding:12px 18px}

/* ── v3.5: QR Studio — responsive cards, drop zone, form section headers ── */
.qr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:14px;margin-top:14px}
.qr-card{border:1.5px solid var(--line);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:8px;background:#fff}
.qr-card-head{display:flex;gap:6px;align-items:center;flex-wrap:wrap;font-weight:800;font-size:16px}
.qr-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:13px;color:#6b6790;align-items:center;justify-content:center}
.qr-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}
.qr-actions .btn{min-height:42px}
.qr-actions .btn.sm{flex:1 1 auto}
.qr-actions .qr-live{flex:1 1 100%;font-size:16px;font-weight:800}
.qr-drop{border:2px dashed #b9b3dd;border-radius:14px;padding:12px;text-align:center;color:#5c5880;cursor:pointer;font-size:13.5px;background:rgba(59,52,134,.04);transition:background .15s}
.qr-drop.drag{background:rgba(59,52,134,.14);border-color:#3B3486}
.qr-form-h{margin:14px 0 6px;font-size:14.5px;color:#3B3486;border-bottom:1.5px solid #eceaf6;padding-bottom:4px}
@media(max-width:700px){
  .qr-grid{grid-template-columns:1fr}
  .qr-actions .btn.sm{flex:1 1 46%;font-size:14px}
}

/* ── v3.6: QR Studio click-path steps + plain-text More-options opener ── */
.qr-steps{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:12px 0 0;font-size:14.5px;font-weight:700;color:#5c5880}
.qr-step{padding:8px 12px;border:1.5px dashed #cdc8e8;border-radius:12px;background:#fff}
.qr-step b{display:inline-block;width:22px;height:22px;border-radius:50%;background:#3B3486;color:#fff;text-align:center;line-height:22px;margin-right:6px;font-size:13px}
.qr-step.on{border:2px solid #E2604C;color:#26224e;box-shadow:0 2px 10px rgba(226,96,76,.18)}
.qr-step.on b{background:#E2604C}
.qr-arrow{font-size:18px;font-weight:900;color:#b9b3dd}
.qr-more2{cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:8px 4px;user-select:none}
.qr-more2::-webkit-details-marker{display:none}
.qr-more2::marker{content:''}
.qr-chev{display:inline-block;font-size:22px;font-weight:900;color:#E2604C;transition:transform .2s ease;line-height:1}
details[open]>.qr-more2 .qr-chev{transform:rotate(90deg)}
.qr-more-gear{font-size:32px;line-height:1;filter:drop-shadow(0 1px 2px rgba(0,0,0,.15))}
.qr-more-main{font-size:19px;font-weight:900;color:#26224e}
.qr-more-sub{font-size:16.5px;font-weight:800;color:#0f766e}
.qr-more2:hover .qr-more-main{color:#3B3486;text-decoration:underline}
@media(max-width:700px){.qr-steps{font-size:13px}.qr-arrow{display:none}.qr-step{flex:1 1 100%}}

/* ── v3.7: shaded expandable "add more features" panel with curiosity peek ── */
.qr-more3{cursor:pointer;list-style:none;display:block;border-radius:16px;border:1.5px dashed #b9b3dd;padding:14px 16px;user-select:none;background:linear-gradient(180deg,rgba(59,52,134,.06),rgba(59,52,134,.16));transition:background .15s,border-color .15s}
.qr-more3:hover{background:linear-gradient(180deg,rgba(59,52,134,.12),rgba(59,52,134,.22));border-color:#3B3486}
.qr-more3::-webkit-details-marker{display:none}
.qr-more3::marker{content:''}
details[open]>.qr-more3{border-style:solid;background:rgba(59,52,134,.05)}
.qr-more-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
details[open]>.qr-more3 .qr-chev{transform:rotate(90deg)}
.qr-peek{display:block;position:relative;margin-top:10px;max-height:104px;overflow:hidden;opacity:.8;pointer-events:none}
.qr-peek-h{display:block;font-weight:800;color:#3B3486;font-size:14px;margin:6px 0 3px}
.qr-peek-line{display:block;height:13px;border-radius:7px;background:#d6d1ec;margin:5px 0;width:86%}
.qr-peek-line.short{width:52%}
.qr-peek-fade{position:absolute;left:0;right:0;bottom:0;height:58px;background:linear-gradient(180deg,rgba(238,236,248,0),#e9e6f6)}
details[open]>.qr-more3 .qr-peek{display:none}
.qr-tap-hint{display:block;text-align:center;font-weight:800;color:#E2604C;font-size:13.5px;margin-top:6px}
details[open]>.qr-more3 .qr-tap-hint{display:none}
.qr-collapse-hint{display:none}
details[open]>.qr-more3 .qr-collapse-hint{display:block;text-align:center;font-weight:800;color:#8b87a8;font-size:13px;margin-top:4px}

/* ── v3.8: prominent Type dropdown ── */
.qr-type-select{font-size:19px !important;font-weight:800;min-height:56px;padding:14px !important;cursor:pointer;border-width:2px !important}
.qr-type-select:hover{border-color:#3B3486 !important;background:rgba(59,52,134,.04)}

/* ── v3.9: twin equal-size primary buttons + sticky section headers ── */
.qr-big-btn{display:flex;align-items:center;justify-content:center;gap:8px;font-size:19px !important;font-weight:900 !important;min-height:54px;padding:12px 22px !important;width:min(100%,520px);border-radius:12px !important}
.qr-more-btn{cursor:pointer;box-shadow:0 3px 10px rgba(59,52,134,.25)}
.qr-more3:hover .qr-more-btn{filter:brightness(1.12)}
details[open]>.qr-more3 .qr-more-btn .qr-chev{transform:rotate(90deg)}
.qr-section-head{position:sticky;top:0;z-index:30;background:var(--paper);font-size:21px;font-weight:900;color:#26224e;padding:12px 2px 8px;margin:18px 0 8px;border-bottom:2.5px solid #d6d1ec}
@media(max-width:700px){.qr-big-btn{width:100%}.qr-section-head{font-size:18px}}

/* ── v4.1: Role Play Arena ── */
.ar-tbl{width:100%;border-collapse:collapse;margin:8px 0;font-size:13.5px}
.ar-tbl th,.ar-tbl td{border:1px solid var(--line);padding:6px 8px;text-align:left}
.ar-tbl th{background:rgba(59,52,134,.07);font-weight:800}
.ar-sticky{position:sticky;top:0;z-index:40;display:flex;gap:10px;align-items:center;background:var(--paper);padding:10px 4px;border-bottom:2.5px solid #d6d1ec}
.ar-timer{font-size:34px;font-weight:900;color:#3B3486;font-variant-numeric:tabular-nums}
.ar-timer.sm{font-size:22px}
.ar-timer.ar-red{color:#E2604C;animation:arPulse 1s infinite}
@keyframes arPulse{50%{opacity:.45}}
.ar-board{background:#fff;border:1.5px solid var(--line);border-radius:18px;padding:16px;margin-top:8px}
.ar-board-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.ar-row{display:flex;align-items:center;gap:10px;margin:10px 0}
.ar-rank{font-size:24px;min-width:38px;text-align:center;font-weight:900}
.ar-gname{min-width:210px;font-weight:800}
.ar-barwrap{flex:1;background:#f0eefa;border-radius:10px;height:28px;overflow:hidden}
.ar-bar{height:28px;border-radius:10px;background:linear-gradient(90deg,#3B3486,#5b4fc9);transition:width .8s ease}
.ar-pts{min-width:70px;text-align:right;font-size:22px;font-weight:900;color:#3B3486;font-variant-numeric:tabular-nums}
.ar-board.ar-proj{position:fixed;inset:0;z-index:999;border-radius:0;padding:4vh 5vw;overflow:auto}
.ar-board.ar-proj .ar-timer{font-size:9vh}
.ar-board.ar-proj .ar-board-head b{font-size:5vh !important}
.ar-board.ar-proj .ar-gname{font-size:3.4vh;min-width:30vw}
.ar-board.ar-proj .ar-pts{font-size:4.5vh;min-width:12vw}
.ar-board.ar-proj .ar-barwrap,.ar-board.ar-proj .ar-bar{height:5vh}
.ar-board.ar-proj .ar-rank{font-size:4.5vh;min-width:7vw}
.ar-opt{display:block;width:100%;text-align:left;margin:6px 0;padding:12px 14px;border:2px solid var(--line);border-radius:12px;background:#fff;font-size:15px;font-weight:600;cursor:pointer;min-height:46px}
.ar-opt:active{transform:scale(.99)}
.ar-opt.sel{border-color:#3B3486;background:rgba(59,52,134,.10);font-weight:800}
.ar-opt.right{border-style:dashed}
.ar-match{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.ar-pair{border:2px solid #0f766e;background:rgba(15,118,110,.08);border-radius:10px;padding:8px 10px;margin:3px 4px 3px 0;font-weight:700;font-size:13px;cursor:pointer}
.ar-locked{opacity:.75}
.ar-post{margin-top:10px}
@media(max-width:700px){.ar-gname{min-width:110px;font-size:13px}.ar-match{grid-template-columns:1fr}.ar-pts{font-size:18px;min-width:52px}}

/* ── v4.2: negotiation round banner ── */
.ar-nego{background:linear-gradient(90deg,rgba(226,96,76,.14),rgba(246,196,104,.16));border:2px dashed var(--coral);border-radius:14px;padding:12px 14px;font-weight:800;text-align:center;font-size:16px}
.ar-board.ar-proj .ar-nego{font-size:3.2vh}

/* ── v4.3: projector in-fullscreen controls + compact game library ── */
.ar-proj-ctl{display:none}
.ar-board.ar-proj .ar-proj-ctl{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:1.5vh;opacity:1;background:rgba(59,52,134,.06);border:1.5px dashed #b9b3dd;border-radius:14px;padding:1vh}
.ar-board.ar-proj .ar-proj-ctl .btn{font-size:2.2vh;padding:1vh 1.6vw;min-height:0}
.ar-lib{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin-top:12px}
.ar-lib .qr-card{padding:12px;gap:6px}
@media(max-width:700px){.ar-lib{grid-template-columns:1fr}}

/* ── v4.4: rank badges, all-answered banner, test-mode bar ── */
.ar-rankno{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:#3B3486;color:#fff;font-weight:900;font-size:13px;margin-right:8px}
.ar-rankno.empty{background:#e4e1f2;color:#8b87a8}
.ar-done{background:linear-gradient(90deg,rgba(15,118,110,.14),rgba(246,196,104,.18));border:2px solid #0f766e;border-radius:14px;padding:10px 14px;font-size:15.5px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:8px 0;animation:arPulse 1.6s infinite}
.ar-board.ar-proj .ar-done{font-size:3vh;justify-content:center}
#impBar{position:fixed;bottom:0;left:0;right:0;z-index:1000;background:linear-gradient(90deg,#7c3aed,#3B3486);color:#fff;padding:10px 16px;text-align:center;font-size:14.5px;box-shadow:0 -4px 14px rgba(0,0,0,.25)}
#impBar .btn{margin-left:8px}

/* ── v4.9: library folders (drop targets) ── */
.ar-folder{border:1.5px dashed #cdc8e8;border-radius:16px;padding:12px 14px;margin:10px 0;background:rgba(59,52,134,.03)}
.ar-folder.drag{background:rgba(59,52,134,.14);border-color:#3B3486;border-style:solid}
.ar-lib .qr-card[draggable="true"]{cursor:grab}
.ar-lib .qr-card[draggable="true"]:active{cursor:grabbing}

/* v4.11: QR create form — 3-column responsive layout, numbered steps, compact wide modal */
.qr3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;align-items:start}
.qr3 .qr-span2{grid-column:span 2}
.qr-stepn{display:inline-flex;align-items:center;justify-content:center;width:21px;height:21px;border-radius:50%;background:var(--iris);color:#fff;font-size:12.5px;font-weight:900;margin-right:4px;vertical-align:middle}
.modal.qr-compact{max-width:min(1200px,96vw)}
.modal.qr-compact label{font-size:13.5px}
.modal.qr-compact input,.modal.qr-compact select{padding:8px 10px}
.modal.qr-compact .qr-form-h{margin:12px 0 6px}
.modal.qr-compact .help{font-size:12.5px}
.modal.qr-compact .qr-big-btn{min-height:48px;font-size:17.5px !important}
@media(max-width:1020px){.qr3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.qr3{grid-template-columns:1fr}.qr3 .qr-span2{grid-column:span 1}}

/* v4.12: collapsible folders with sticky clickable headers (arena library + QR campaigns) */
.ar-folder-head{position:sticky;top:54px;z-index:6;display:flex;align-items:center;gap:8px;background:#f4f2fb;border:1px solid #e3e0f2;border-radius:10px;padding:9px 12px;cursor:pointer;user-select:none;font-size:15px;box-shadow:0 2px 6px rgba(38,34,78,.06)}
.ar-folder-head:hover{background:#ece9f8}
.ar-folder.open>.ar-folder-head{background:#e9e6f7}
.ar-fold-chev{font-weight:900;color:var(--iris);width:14px}
.ar-fold-btns{margin-left:auto;display:flex;gap:6px}
.ar-folder-body{margin-top:8px}
@media(max-width:900px){.ar-folder-head{top:56px}}
/* v4.14: an OPEN folder scrolls its files inside its own box — both frozen headers stay visible */
.ar-folder.open>.ar-folder-body{max-height:68vh;overflow:auto;padding-right:4px;overscroll-behavior:contain}
/* v4.12: full-page create dialog */
.modal.qr-full{max-width:96vw;width:96vw;max-height:94vh}

/* v4.13: visual hierarchy — components sit one tab right of their section header */
.sec-ind{margin-left:26px}
.card>h2:first-child~*,.card>h3:first-child~*{margin-left:26px}
@media(max-width:700px){.sec-ind{margin-left:10px}.card>h2:first-child~*,.card>h3:first-child~*{margin-left:10px}}

/* v4.16: Recycle Bin + Undo bar + folder hint */
.ar-undo{position:sticky;top:0;z-index:45;background:#fff7ed;border:1.5px solid #f59e0b;border-radius:10px;padding:9px 12px;margin:8px 0;font-weight:700;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.ar-bin>.ar-folder-head{background:#fdf3f0;border-color:#f3d1c6}
.ar-fold-hint{font-size:11.5px;margin-left:4px}

/* v4.20: analytics dashboard — plain-English reading lines under every chart */
.qr-read{margin:4px 0 0;padding:7px 10px;background:rgba(15,118,110,.06);border-left:3px solid #0f766e;border-radius:0 8px 8px 0;font-size:13px}

/* v4.24: role-play quick index — all games visible at once, numbered, clickable */
.ar-index{margin:0 0 10px;padding:12px 14px}
.ar-idx-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:8px;margin-top:8px}
.ar-idx-folder{grid-column:1/-1;font-weight:900;color:#3B3486;margin-top:2px;font-size:13px}
.ar-idx-row{display:flex;gap:10px;align-items:flex-start;text-align:left;background:#fff;border:1.5px solid #e3e0f2;border-radius:12px;padding:8px 10px;cursor:pointer;font:inherit}
.ar-idx-row:hover{border-color:#3B3486;background:#f7f6fc;box-shadow:0 2px 8px rgba(59,52,134,.10)}
.ar-idx-no{flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--iris);color:#fff;font-weight:900;font-size:13px;display:inline-flex;align-items:center;justify-content:center;margin-top:2px}
.ar-idx-main{flex:1;font-size:12.5px;line-height:1.4}

/* v4.25: the index IS the library */
.ar-idx-folder{grid-column:1/-1;display:flex;align-items:center;gap:8px;font-weight:900;color:#3B3486;margin-top:4px;font-size:14px;border:1.5px dashed transparent;border-radius:10px;padding:4px 8px}
.ar-idx-folder.drag{border-color:#3B3486;background:rgba(59,52,134,.10)}
.ar-idx-folder .ar-fold-btns{margin-left:auto}
/* ── v4.39: visual journey upgrade — colored heading banners, drag-reorder, journey strip (ALL games) ── */
.ar-sticky{background:linear-gradient(135deg,#3B3486,#5b54b8);color:#fff;border-bottom:none;border-radius:0 0 14px 14px;padding:10px 12px}
.ar-sticky .pill.info{background:rgba(255,255,255,.18);color:#fff;border-color:transparent}
.ar-sticky .ar-timer{color:#fff}
.ar-sticky .ar-timer.ar-red{color:#ffd7cf}
.ar-round-banner{background:linear-gradient(135deg,#3B3486,#E2604C);color:#fff;font-weight:900;font-size:16px;padding:9px 13px;border-radius:12px}
.ar-scene{background:#26224e;color:#fff;font-weight:900;padding:7px 12px;border-radius:10px;display:inline-block;margin:0 0 6px}
.ar-go{background:#fff7ed;border:2px dashed #b45309;border-radius:12px;padding:9px 12px;margin:8px 0}
.ar-go b{color:#b45309}
.ar-journey{display:flex;gap:4px;align-items:stretch;flex-wrap:wrap;margin:8px 0 2px}
.ar-jstage{flex:1;min-width:86px;border-radius:10px;padding:7px 8px;color:#fff;font-size:11.5px;font-weight:800;line-height:1.25;text-align:center}
.ar-jstage.good{background:#0f766e}.ar-jstage.mid{background:#b45309}.ar-jstage.bad{background:#b91c1c}
.ar-jstage small{display:block;font-weight:600;opacity:.92}
.ar-drag{touch-action:none;cursor:grab;user-select:none;float:right;font-size:17px;color:#8b87a8;padding:0 4px;margin-left:8px}
.ar-opt.dragging{opacity:.55;border-style:dashed}
.ar-opt.drop-here{border-color:#E2604C;background:rgba(226,96,76,.12)}
/* ── v4.40: live finished-team indicators + submission strip on the leaderboard (control room + projector) ── */
.ar-row.fin{background:rgba(15,118,110,.10);border:2px solid #0f766e;border-radius:14px;padding:5px 8px}
.ar-finpill{display:inline-block;background:#0f766e;color:#fff;font-weight:900;font-size:12.5px;border-radius:999px;padding:2px 10px;vertical-align:middle;animation:arPulse 1.6s infinite}
.ar-fincount{font-weight:900;color:#b45309}
.ar-fincount.all{color:#0f766e}
.ar-barwrap{position:relative}
.ar-prog{position:absolute;left:0;right:0;bottom:0;height:6px;background:rgba(38,34,78,.08)}
.ar-prog i{display:block;height:100%;background:#e8a33d;transition:width .5s ease}
.ar-row.fin .ar-prog i{background:#0f766e}
.ar-board.ar-proj .ar-finpill{font-size:2.6vh;padding:.4vh 1.6vw}
.ar-board.ar-proj .ar-fincount{font-size:2.8vh}
.ar-board.ar-proj .ar-prog{height:1.1vh}
/* ── v4.41: responsive hardening — compact mobile nav, tap-to-open replays, readable summaries ── */
html{-webkit-text-size-adjust:100%}
details.ar-replay{padding:0;overflow:hidden}
.ar-replay summary{list-style:none;cursor:pointer;padding:12px 14px;display:flex;flex-direction:column;gap:6px}
.ar-replay summary::-webkit-details-marker{display:none}
.ar-replay .ar-round-banner{margin:0}
.ar-replay-chips{font-size:13.5px;font-weight:800;color:#4b4768}
.ar-replay-hint{font-weight:600;color:#8b87a8;font-size:12px}
.ar-replay[open] .ar-replay-hint{opacity:.6}
.ar-replay-q{border-top:1px dashed var(--line);padding:10px 14px;line-height:1.55}
@media (max-width:900px){
  .app{grid-template-columns:1fr}
  .rail{flex-direction:row;align-items:center;height:auto;min-height:0;max-height:60px;position:sticky;top:0;z-index:50;
    overflow-x:auto;overflow-y:hidden;padding:6px 10px;gap:2px;-webkit-overflow-scrolling:touch;
    padding-left:max(10px,env(safe-area-inset-left));padding-right:max(10px,env(safe-area-inset-right))}
  .rail-brand{width:34px;height:34px;font-size:14px;margin:0 8px 0 0;flex-shrink:0;border-radius:9px}
  .rail-btn{flex-direction:row;align-items:center;gap:5px;padding:8px 9px;font-size:12.5px;white-space:nowrap;flex-shrink:0}
  .rail-btn .ri{font-size:15px}
  .rail-spacer{display:none}
  main{padding:14px}
  .modal{padding:16px;max-height:92vh}
  .modal-bg{padding:10px}
}
@media (max-width:700px){
  h1{font-size:22px}
  .qr-card{padding:12px}
  .ar-sticky b{font-size:14px}
  .ar-replay summary{padding:10px 12px}
  .ar-replay-q{font-size:14.5px;padding:10px 12px}
  .ar-journey{gap:3px}
  .ar-jstage{min-width:72px;font-size:10.5px}
  .qr-card-head{font-size:14px}
  .ar-opt{font-size:14px;padding:11px 12px}
}
/* ── v4.42: rail & dashboard polish — one-line menus, reachable Log out, banner column headings ── */
/* Rail: icon + label on ONE line, icons hard-left, labels aligned; Log out follows the menu
   (divider above it) instead of hiding at the bottom of the viewport. */
@media (min-width:901px){
  .app{grid-template-columns:172px 1fr}
  .rail{padding:10px 8px;gap:2px}
  .rail-brand{margin:4px 0 12px 4px}
  .rail-btn{flex-direction:row;justify-content:flex-start;align-items:center;text-align:left;gap:9px;padding:9px 10px;font-size:13px;width:100%}
  .rail-btn .ri{font-size:17px;width:22px;display:inline-flex;justify-content:center;flex-shrink:0}
  .rail-spacer{flex:0 0 auto;border-top:1px solid rgba(255,255,255,.18);margin:8px 6px}
}
/* Dashboard hub: gradient banner headings + strict one-line rows, left-aligned */
.hub-card{padding:10px 12px 12px}
.hub-card h3{background:linear-gradient(135deg,#3B3486,#E2604C);color:#fff;font-weight:900;font-size:14.5px;padding:8px 12px;border-radius:10px;margin:0 0 8px}
.hub-row{flex-wrap:nowrap;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;padding:5px 6px;justify-content:flex-start}
.hub-row b{overflow:hidden;text-overflow:ellipsis}
.hub-row .btn.sm{padding:3px 8px;font-size:11.5px;flex-shrink:0}
.hub-row .pill{flex-shrink:0}
.hub-card .help{font-size:12.5px}
@media (max-width:700px){
  .hub-grid{grid-template-columns:1fr}
  .hub-row{font-size:12.5px}
}
/* ── v4.44: projector-safe layouts + PSF descriptors side-by-side (no hover needed) ── */
.psf-pick{margin:12px 0 4px}
.psf-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:8px}
.psf-col{border:1.5px solid var(--line);border-radius:12px;padding:9px 10px;background:#fff}
.psf-col-h{display:block;font-size:12.5px;margin-bottom:6px}
.psf-item{display:flex;gap:7px;align-items:flex-start;font-size:12px;line-height:1.4;font-weight:500;margin:0 0 7px;cursor:pointer;border-radius:7px;padding:3px 4px}
.psf-item input{width:auto;margin:2px 0 0;flex-shrink:0}
.psf-item b{flex-shrink:0}
.psf-item:hover{background:rgba(59,52,134,.06)}
.psf-item:has(input:checked){background:rgba(15,118,110,.12);font-weight:700}
@media(max-width:1150px){.psf-cols{grid-template-columns:1fr}}
/* projector resolutions (≈1024–1150px): give course pages the full width — side course-nav
   becomes top tabs, two-column forms stack, so wide tables (People, Gradebook) keep every column */
@media(max-width:1150px) and (min-width:901px){
  .course-shell{grid-template-columns:1fr}
  .cnav{flex-direction:row;overflow-x:auto;position:static}
  .cnav button{border-left:none;border-bottom:3px solid transparent;border-radius:8px 8px 0 0;white-space:nowrap}
  .cnav button.on{border-bottom-color:var(--coral)}
  .grid2{grid-template-columns:1fr}
  main{padding:16px}
}
.tbl-wrap{scrollbar-width:thin}
.tbl-wrap::-webkit-scrollbar{height:8px}
.tbl-wrap::-webkit-scrollbar-thumb{background:#c9c6e4;border-radius:8px}
/* ── v4.45: 📊 E-Grading Studio ── */
.eg-presets{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0 10px}
.eg-presets .btn{font-weight:700}
#egChart{user-select:none;-webkit-user-select:none}
#egChart g:active{cursor:grabbing}
@media(max-width:700px){.eg-presets .btn{flex:1 1 44%}}
/* ── v4.46: E-Grade polish — sticky headers, fullscreen mode, distance-readable type ── */
.eg-h3{background:linear-gradient(135deg,#3B3486,#E2604C);color:#fff;font-weight:900;font-size:15px;padding:9px 13px;border-radius:10px;margin:0 0 10px}
.eg-sticky{position:sticky;top:0;z-index:26}
@media(max-width:900px){.eg-sticky{top:62px}}
.eg-table-wrap{max-height:64vh}
.eg-table th{position:sticky;top:0;z-index:5}
.eg-table td{padding:6px 10px}
.eg-num{text-align:right;font-variant-numeric:tabular-nums;min-width:64px}
.eg-presets .btn{font-size:14.5px;font-weight:800;padding:9px 13px}
.eg-fail{background:rgba(185,28,28,.08)}
.eg-fail td:first-child{box-shadow:inset 3px 0 0 #b91c1c}
#egDrop.drag{outline:3px dashed #E2604C;outline-offset:3px;background:#2e2a68}
#page-egrade.eg-fs{background:var(--paper);overflow:auto;padding:20px 30px}
#page-egrade.eg-fs h1{font-size:32px}
#page-egrade.eg-fs .eg-h3{font-size:19px}
#page-egrade.eg-fs .eg-presets .btn{font-size:18px;padding:12px 18px}
#page-egrade.eg-fs table{font-size:16.5px}
#page-egrade.eg-fs .kpi .n{font-size:34px}
#page-egrade.eg-fs .help{font-size:14.5px}
#page-egrade.eg-fs .ar-go{font-size:15.5px}
@media(max-width:700px){
  #page-egrade .kpis{grid-template-columns:repeat(2,1fr)}
  .eg-num{min-width:0}
  .eg-presets .btn{flex:1 1 44%;font-size:13.5px}
  #page-egrade table{font-size:12.5px}
}

/* ── v4.47: E-Grade — compact CENTERED range table, one-click course buttons, C-/D at-risk tint ── */
.eg-range-card{max-width:920px}
.eg-table th,.eg-table td{text-align:center}
.eg-table td{padding:7px 8px}
.eg-num{text-align:center;min-width:0;font-variant-numeric:tabular-nums}
.eg-table td:first-child{white-space:nowrap}
.eg-low{background:rgba(217,119,6,.10)}
.eg-low td:first-child{box-shadow:inset 3px 0 0 #d97706}
.eg-course{display:flex;flex-direction:column;align-items:flex-start;gap:2px;width:100%;text-align:left;margin:6px 0 0;padding:10px 14px;border:2px solid var(--line);border-radius:12px}
.eg-course:not([disabled]):hover{border-color:#E2604C;transform:translateY(-1px)}
.eg-course[disabled]{opacity:.55;cursor:not-allowed}
.eg-course-t{font-weight:800;font-size:14.5px}
.eg-course-s{font-size:12px;color:var(--ink-soft,#8b87a8)}
#page-egrade.eg-fs .eg-range-card{max-width:1100px}
@media(max-width:700px){.eg-table td{padding:6px 5px}.eg-course-t{font-size:13.5px}}

/* ── v4.48: roster fits with NO sideways scroll — 5-char codes, hover expansion, frozen headers ── */
.eg-roster{width:100%;font-size:12.5px}
.eg-roster th,.eg-roster td{text-align:center;padding:6px 5px}
.eg-roster th{font-size:12px;line-height:1.25}
.eg-roster td.eg-name,.eg-roster th.eg-name{text-align:left;max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.eg-roster .eg-max{display:block;font-weight:400;font-size:10.5px;opacity:.85}
.eg-roster-wrap{max-height:60vh;margin-top:8px}
.eg-roster-sum{cursor:pointer;position:sticky;top:0;z-index:27;background:var(--card);padding:12px 8px;margin:-10px -8px 0;border-radius:12px}
@media(max-width:900px){.eg-roster-sum{top:62px}}
.eg-legend{line-height:1.8;margin:8px 0 0}
.eg-abbr{cursor:help;position:relative}
.eg-abbr:hover{background:#2e2a68}
.eg-abbr:hover::after{content:attr(data-full);position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#1d1a4b;color:#fff;font-size:12.5px;font-weight:600;line-height:1.4;padding:7px 11px;border-radius:9px;white-space:normal;width:max-content;max-width:240px;text-align:center;z-index:60;box-shadow:0 6px 18px rgba(0,0,0,.35);pointer-events:none}
.eg-roster th.eg-abbr:nth-last-child(-n+4):hover::after{left:auto;right:0;transform:none}
.eg-roster th.eg-abbr:nth-child(-n+7):hover::after{left:0;transform:none} /* v4.62: Round now sits 6th (Excel order) — keep its tooltip inside the left edge */
.eg-part-note{display:none}
#page-egrade.eg-fs .eg-roster{font-size:14.5px}
#page-egrade.eg-fs .eg-roster th{font-size:14px}
@media(max-width:760px){
  .eg-roster .eg-part{display:none}
  .eg-part-note{display:block;margin-top:8px}
  .eg-roster td.eg-name{max-width:140px}
  .eg-roster{font-size:12px}
}

/* ── v4.49: append sections — one merged grading list, chips with ✕, dashed append panel ── */
.eg-src-bar{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin:0 0 12px}
.eg-src{display:inline-flex;align-items:center;gap:6px;background:#3B3486;color:#fff;border-color:transparent;font-weight:700;padding:5px 10px}
.eg-src-x{background:rgba(255,255,255,.18);border:none;color:#fff;font-weight:900;font-size:12px;line-height:1;padding:3px 6px;border-radius:7px;cursor:pointer}
.eg-src-x:hover{background:#E2604C}
#egAppend{border:2px dashed #3B3486;max-width:760px}
#egAppend .btn.drag{outline:3px dashed #E2604C;outline-offset:3px}
@media(max-width:700px){.eg-src-bar{gap:5px}.eg-src{font-size:11.5px;padding:4px 8px}}
/* roster header row freezes to the SCREEN: the wrap no longer scrolls internally, so the
   sticky summary (top) and the sticky column headers (right below it) pin to the viewport
   while the PAGE scrolls through all students */
.eg-roster-wrap{max-height:none;overflow:visible}
.eg-roster-sum{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.eg-roster thead th{position:sticky;top:44px;z-index:23}
@media(max-width:900px){.eg-roster thead th{top:106px}}
#page-egrade.eg-fs .eg-roster-sum{top:0}
#page-egrade.eg-fs .eg-roster thead th{top:48px}

/* ── v4.50: PSF quick-tick bar + hover meaning/examples; fair-play polish ── */
.psf-allbar{display:inline-flex;gap:6px;margin-left:10px;vertical-align:middle}
.psf-colbtns{float:right;display:inline-flex;gap:4px}
.psf-colbtns .btn{padding:1px 7px;font-size:10.5px}
.psf-tip{position:relative;cursor:help}
.psf-tip:hover::after{content:attr(data-tip);position:absolute;left:0;top:100%;background:#1d1a4b;color:#fff;
  font-size:12.5px;font-weight:500;line-height:1.5;padding:9px 12px;border-radius:10px;white-space:normal;
  width:min(340px,80vw);z-index:70;box-shadow:0 8px 22px rgba(0,0,0,.35);pointer-events:none}
@media(max-width:700px){.psf-tip:hover::after{display:none}}
/* v4.50: PSF Report Studio page */
.psf-course{display:block;padding:7px 10px;border:1.5px solid var(--line);border-radius:10px;margin:6px 0;cursor:pointer}
.psf-course:hover{border-color:#3B3486}
.psf-coach{padding:9px 12px;border-left:4px solid #7FD49B;background:rgba(127,212,155,.07);border-radius:8px;margin:7px 0;font-size:13px;line-height:1.6}
.psf-coach.thin{border-left-color:#E2604C;background:rgba(226,96,76,.07)}

/* ── v4.51: PSF Studio split view — live report on the RIGHT, progress clock, 7-day library ── */
.psf-split{display:grid;grid-template-columns:minmax(340px,440px) 1fr;gap:16px;align-items:start}
.psf-view{position:sticky;top:12px}
.psf-empty{text-align:left}
.psf-ghost{font-size:84px;text-align:center;opacity:.15;padding:40px 0}
.psf-clock{font-size:42px;font-weight:900;color:#3B3486;text-align:center;margin:14px 0 8px;font-variant-numeric:tabular-nums}
.psf-clock span{font-size:16px;color:#9A96B8;font-weight:600}
.psf-bar{height:14px;background:#ECE9F8;border-radius:8px;overflow:hidden;margin:6px 0 10px}
.psf-bar-fill{height:100%;width:2%;background:linear-gradient(90deg,#3B3486,#E2604C);border-radius:8px;transition:width 1s linear}
.psf-rep{padding:9px 11px;border:1.5px solid var(--line);border-radius:10px;margin:7px 0;font-size:13px;line-height:1.7}
.psf-rep.urgent{border-color:#E2604C;background:rgba(226,96,76,.06)}
@media(max-width:1000px){.psf-split{grid-template-columns:1fr}.psf-view{position:static}}

/* ── v4.53: PSF Studio — compact responsive layout, folding panels, 🖥 projector full-screen ── */
.psf-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:2px}
.psf-split{grid-template-columns:minmax(310px,390px) 1fr}
.psf-fold{cursor:pointer;font-weight:800;font-size:14.5px;color:#3B3486}
.psf-fold .pill{margin-left:6px}
.psf-course{padding:6px 9px;font-size:13px}
#psfView.psf-fs,#psfCoach.psf-fs{background:var(--paper);overflow:auto;padding:26px 5vw}
#psfView.psf-fs .card,#psfCoach.psf-fs{border:none;box-shadow:none}
#psfView.psf-fs textarea{min-height:78vh;font-size:17px;line-height:1.7}
#psfView.psf-fs .eg-h3{font-size:20px}
#psfCoach.psf-fs .psf-coach{font-size:16.5px;line-height:1.75}
#psfCoach.psf-fs .psf-fold{font-size:20px}
@media(max-width:1000px){
  .psf-head h1{font-size:22px}
  .psf-course{font-size:12.5px}
  #psfGo{width:100%}
  .psf-view .card{padding:12px}
}

/* ── v4.54: PSF zoom bar + 🏛 committee review ── */
.psf-zoombar{display:inline-flex;align-items:center;gap:5px}
.psf-zoombar b{min-width:44px;text-align:center;font-variant-numeric:tabular-nums;font-size:13px;color:#3B3486}
#psfView.psf-fs .psf-zoombar .btn{font-size:16px;padding:8px 14px}
#egrDrop.drag{outline:3px dashed #E2604C;outline-offset:3px;background:#ECE9F8}

/* ── v4.55: E-Grade polish — 2-column start on one screen, big course banner, distance-crisp type ── */
.eg-start{display:grid;grid-template-columns:minmax(340px,1fr) minmax(340px,1fr);gap:16px;align-items:start;max-width:1180px}
.eg-start .card{margin-bottom:16px}
.eg-start .help{font-size:13px;line-height:1.55}
.eg-course{margin:7px 0 0;padding:9px 13px;gap:1px}
.eg-course-t{font-size:15px;font-weight:800;color:#231f54;letter-spacing:.1px}
.eg-course-s{font-size:12.5px;font-weight:600;color:#565277}
.eg-course[disabled] .eg-course-t{color:#8b87a8}
/* studio: the selected course is unmissable */
.eg-course-banner{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:linear-gradient(135deg,#3B3486,#E2604C);
  color:#fff;border-radius:14px;padding:13px 18px;margin:0 0 12px;box-shadow:0 4px 14px rgba(59,52,134,.25)}
.eg-cb-main{font-size:21px;font-weight:900;letter-spacing:.2px;text-shadow:0 1px 2px rgba(0,0,0,.18)}
.eg-cb-sub{font-size:14.5px;font-weight:700;opacity:.95}
.eg-cb-btns{margin-left:auto;display:inline-flex;gap:8px}
.eg-cb-btns .btn{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.45);color:#fff;font-weight:800;font-size:13.5px}
.eg-cb-btns .btn:hover{background:rgba(255,255,255,.3)}
/* sections bar: bigger chips + bigger Append button */
.eg-src-bar{margin:0 0 14px}
.eg-src-bar > .help{font-size:13.5px;font-weight:700}
.eg-src{font-size:14.5px;padding:7px 13px}
.eg-src-x{font-size:14px;padding:4px 8px}
.eg-src-bar .btn:not(.eg-src-x){font-size:15px;font-weight:800;padding:9px 15px}
/* distance-crisp type across the studio */
#page-egrade .kpi .n{font-size:26px;font-weight:900;color:#231f54}
#page-egrade .kpi .l{font-size:12.5px;font-weight:700;color:#565277}
.eg-table{font-size:13.5px}
.eg-table th{font-size:13px;letter-spacing:.2px}
.eg-legend{font-size:12.5px;color:#3d3963}
@media(max-width:900px){
  .eg-start{grid-template-columns:1fr}
  .eg-course-banner{padding:11px 14px}
  .eg-cb-main{font-size:17px}
  .eg-cb-sub{font-size:12.5px}
  .eg-cb-btns{margin-left:0;width:100%}
  .eg-cb-btns .btn{flex:1}
  .eg-src-bar .btn:not(.eg-src-x){width:100%}
}

/* ── v4.56: sticky big header + ← Back, vision-check chips ── */
.eg-back{font-weight:900;font-size:14px}
@media(min-width:901px){
  .eg-course-banner{position:sticky;top:8px;z-index:35}
  .eg-sticky{top:78px}
  .eg-roster-sum{top:78px}
  .eg-roster thead th{top:122px}
}
@media(max-width:900px){
  .eg-course-banner{position:sticky;top:64px;z-index:35}
  .eg-back{width:auto !important;flex:0 0 auto}
}

/* ── v4.57: committee review — frozen KPI strip, big ← Back, verdict table ── */
.eg-back{font-size:16px !important;font-weight:900 !important;padding:10px 18px !important;border-radius:12px}
.egr-kpis{margin:0 0 8px}
.egr-verdict td,.egr-verdict th{font-size:13.5px}
@media(min-width:901px){
  .egr-kpis{position:sticky;top:84px;z-index:33;background:var(--paper);padding:6px 0 2px}
  .egr-kpis .kpi{padding:10px 12px}
  .egr-kpis .kpi .n{font-size:24px}
}
@media(max-width:900px){
  .eg-back{font-size:15px !important;padding:9px 14px !important}
  .egr-kpis .kpis{grid-template-columns:repeat(3,1fr)}
}

/* ── v4.59: ONE studio for teachers & committee — frozen KPI+preset strip, sections 2·3 side by side ── */
.eg-freeze{position:sticky;z-index:32;background:var(--paper);padding:6px 0 8px;border-bottom:1px solid var(--line)}
@media(min-width:901px){.eg-freeze{top:76px}}
@media(max-width:900px){.eg-freeze{top:128px}}
.eg-freeze .kpis{margin:0 0 6px}
.eg-freeze .kpi{padding:8px 12px}
.eg-freeze .kpi .n{font-size:22px}
.eg-freeze .kpi .l{font-size:11.5px}
.eg-freeze .eg-presets{margin:0}
.eg-freeze .eg-presets .btn{font-size:13.5px;padding:7px 11px}
.eg-main2col{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start;margin-top:12px}
@media(max-width:1150px){.eg-main2col{grid-template-columns:1fr}}
.eg-main2col .card{padding:13px;margin-bottom:14px}
.eg-main2col .eg-table{font-size:12.5px}
.eg-main2col .eg-table td{padding:5px 6px}
.eg-main2col .eg-range-card{max-width:none}
.eg-howto{margin:0 0 8px}
.eg-howto summary{cursor:pointer;font-weight:800;font-size:13px;color:#b45309}
/* full-screen: the same freeze, rebased under the banner */
#page-egrade.eg-fs .eg-course-banner{position:sticky;top:0;z-index:35}
#page-egrade.eg-fs .eg-freeze{position:sticky;top:78px;z-index:32}
/* the roster returns to its own scroll box (the page-level pins now belong to the freeze strip) */
.eg-roster-wrap{max-height:56vh;overflow:auto}
.eg-roster thead th{top:0}
.eg-roster-sum{position:static}

/* ── v4.60: click-to-expand chart, side-by-side from 1000px, phone polish ── */
@media(min-width:1001px){.eg-main2col{grid-template-columns:1fr 1fr}}
.eg-chart-card.big{grid-column:1 / -1}
.eg-expand{float:right;font-weight:800}
#egChart{cursor:zoom-in}
.eg-chart-card.big #egChart{cursor:zoom-out}
@media(max-width:700px){
  .eg-freeze{position:static;border-bottom:none;padding:2px 0 4px}   /* tiny screens: don't eat the viewport */
  .eg-freeze .kpis{grid-template-columns:repeat(3,1fr)}
  .eg-freeze .eg-presets .btn{flex:1 1 30%;font-size:12.5px;padding:6px 8px}
  .eg-expand{display:none}                                            /* chart is already full width on phones */
  .eg-main2col{gap:10px}
}

/* ── v4.63: frozen sections bar · real Append button · modern drop zones ── */
/* the "Sections in this list" row stays pinned right under the course banner (normal + full screen) */
@media(min-width:901px){
  .eg-src-bar{position:sticky;top:76px;z-index:34;background:var(--paper);margin:0;padding:9px 0;
    flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin}
  .eg-src-bar .pill,.eg-src-bar .btn{flex:0 0 auto;white-space:nowrap}
  .eg-freeze{top:136px}                                 /* KPI strip rebased below the new frozen row */
}
@media(min-width:701px) and (max-width:900px){
  .eg-src-bar{position:sticky;top:128px;z-index:34;background:var(--paper);margin:0;padding:8px 0;
    flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin}
  .eg-src-bar .pill,.eg-src-bar .btn{flex:0 0 auto;white-space:nowrap}
  .eg-freeze{top:186px}
}
#page-egrade.eg-fs .eg-src-bar{position:sticky;top:78px;z-index:34;background:var(--paper);margin:0;padding:9px 0}
#page-egrade.eg-fs .eg-freeze{top:138px}
/* ➕ Append: unmistakably a BUTTON — filled, raised, lifts on hover */
.eg-append-btn{background:linear-gradient(135deg,#3B3486,#5b4fc9);color:#fff;border:none;font-weight:800;
  border-radius:12px;box-shadow:0 3px 10px rgba(59,52,134,.35);transition:transform .12s ease,box-shadow .12s ease}
.eg-append-btn:hover{background:linear-gradient(135deg,#453d9e,#6a5fe0);color:#fff;transform:translateY(-1px);
  box-shadow:0 6px 16px rgba(59,52,134,.45)}
.eg-append-btn:active{transform:translateY(0);box-shadow:0 2px 6px rgba(59,52,134,.4)}
/* 📂 drop zone: a big, obvious dashed landing area — glows green while a file hovers over it */
.eg-dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;
  padding:26px 16px;border:2.5px dashed #5b4fc9;border-radius:16px;cursor:pointer;text-align:center;
  background:linear-gradient(180deg,#f7f6ff,#efedff);transition:border-color .15s ease,background .15s ease,box-shadow .15s ease,transform .15s ease}
.eg-dropzone:hover{border-color:#3B3486;background:linear-gradient(180deg,#f2f0ff,#e7e4ff);box-shadow:0 4px 14px rgba(59,52,134,.16)}
.eg-dropzone:focus-within{outline:3px solid rgba(91,79,201,.35);outline-offset:2px}
.eg-dropzone.drag{border-style:solid;border-color:#0f766e;background:#e6faf5;transform:scale(1.012);
  box-shadow:0 0 0 5px rgba(15,118,110,.18)}
.eg-dropzone.drag .eg-dz-title{color:#0f766e}
.eg-dz-icon{font-size:34px;line-height:1}
.eg-dz-title{font-weight:900;font-size:15.5px;color:#231f54}
.eg-dz-sub{font-size:12.5px;color:#565277}
.eg-dz-sub u{color:var(--iris);font-weight:800;text-underline-offset:2px}
#page-egrade.eg-fs .eg-dz-title{font-size:18px}
@media(max-width:700px){.eg-dropzone{padding:20px 12px}.eg-dz-icon{font-size:28px}}

/* ── v4.65: 🎚 per-teacher optional-studio switches (Admin page) — a real on/off toggle ── */
.feat-sw{position:relative;display:inline-block;width:46px;height:26px;cursor:pointer;vertical-align:middle}
.feat-sw input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}
.feat-sw .feat-knob{position:absolute;inset:0;border-radius:999px;background:#cfcce4;transition:background .15s ease;pointer-events:none}
.feat-sw .feat-knob::after{content:'';position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;
  background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.3);transition:left .15s ease}
.feat-sw input:checked + .feat-knob{background:#0f766e}
.feat-sw input:checked + .feat-knob::after{left:23px}
.feat-sw input:focus-visible + .feat-knob{outline:3px solid rgba(15,118,110,.35);outline-offset:2px}

/* ── v4.66: 🎤 dictation bar — big touch targets, live pulse, phone-friendly ── */
.dict-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:6px 0 10px}
.dict-mic{font-weight:800;font-size:14.5px;padding:10px 16px;min-height:44px;border-radius:12px}
.dict-mic.dict-live{background:#b91c1c;border-color:#b91c1c;color:#fff;animation:dictPulse 1.2s ease-in-out infinite}
@keyframes dictPulse{0%,100%{box-shadow:0 0 0 0 rgba(185,28,28,.45)}50%{box-shadow:0 0 0 9px rgba(185,28,28,0)}}
.dict-bar select{min-height:44px}
.dict-bar .btn.sm{min-height:44px;padding:8px 14px}
.dict-nudge{animation:dictNudge 1.4s ease-in-out 3;background:#fff7e6;border-color:#F6C468}
@keyframes dictNudge{0%,100%{transform:none}50%{transform:scale(1.06)}}
.dict-status{flex-basis:100%;font-weight:600}
@media(max-width:700px){
  .dict-mic{flex:1 1 100%}                                  /* phones: the mic is a full-width thumb button */
  .dict-bar select,.dict-bar .btn.sm{flex:1 1 46%}
}

/* ── v4.68: 👩‍🏫 admin course lists grouped by teacher — folded by default ── */
.crs-others-h{margin:26px 0 6px;font-size:20px}
.crs-teacher{margin:10px 0}
.crs-t-btn{display:flex;align-items:center;gap:10px;width:100%;max-width:640px;text-align:left;
  font-size:15.5px;font-weight:800;padding:12px 16px;border-radius:14px}
.crs-t-btn.open{background:#efedff;border-color:#5b4fc9}
.crs-chev{font-size:14px;color:var(--iris);width:14px}
.crs-grp{display:none}
.crs-grp.open{display:block;animation:crsIn .18s ease}
@keyframes crsIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ── v4.70: 🗑 recycle bin card (bottom of the Courses page) ── */
.crs-bin{margin-top:26px;border-left:4px solid var(--coral)}
.crs-bin td,.crs-bin th{padding:8px 10px}

/* ── v4.71: 🗑 Recycle Bin page + rail badge — responsive on every device ── */
.bin-badge{background:#E2604C;color:#fff;border-radius:999px;font-size:10.5px;font-weight:900;
  padding:1px 7px;margin-left:6px;line-height:1.6;display:inline-block;min-width:18px;text-align:center}
.rb-empty{text-align:center;padding:44px 18px}
.rb-empty-icon{font-size:52px;line-height:1;margin-bottom:10px;opacity:.75}
.rb-table th,.rb-table td{padding:9px 10px;text-align:center;vertical-align:middle}
.rb-table .btn.sm{min-height:38px}
@media(max-width:700px){                                    /* phones: rows become tidy cards */
  .rb-table thead{display:none}
  .rb-table,.rb-table tbody,.rb-table tr,.rb-table td{display:block;width:100%}
  .rb-table tr{border:1px solid var(--line);border-radius:14px;margin:10px 0;padding:8px 12px;background:#fff}
  .rb-table td{display:flex;justify-content:space-between;align-items:center;gap:10px;
    border:none;padding:6px 0;text-align:right !important}
  .rb-table td::before{content:attr(data-th);font-weight:800;font-size:12px;color:#565277;text-align:left}
  .rb-table td:last-child{justify-content:flex-end}
  .rb-table td:last-child::before{content:''}
  .rb-table .btn.sm{width:100%;min-height:44px}
}

/* ── v4.72: 3-provider AI keys on the Account page ── */
.myai-row{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end;margin:10px 0;padding-bottom:10px;border-bottom:1px dashed var(--line)}
.myai-row:last-child{border-bottom:none;padding-bottom:0}
.myai-row .btn{min-height:42px}

/* ── v4.75: ⬇ Export Excel — big, frozen next to ➕ Append, unmistakable on every device ── */
.eg-export-btn{background:linear-gradient(135deg,#E2604C,#c2410c);color:#fff;border:none;font-weight:900;
  font-size:16px !important;padding:10px 18px !important;border-radius:12px;
  box-shadow:0 3px 10px rgba(226,96,76,.4);transition:transform .12s ease,box-shadow .12s ease}
.eg-export-btn:hover{background:linear-gradient(135deg,#e96f5c,#d24a12);color:#fff;transform:translateY(-1px);
  box-shadow:0 6px 16px rgba(226,96,76,.5)}
.eg-export-btn:active{transform:translateY(0);box-shadow:0 2px 6px rgba(226,96,76,.45)}
#page-egrade.eg-fs .eg-export-btn{font-size:18px !important;padding:12px 22px !important}
@media(max-width:760px){.eg-export-btn{width:100%}}   /* phones: full-width thumb button in the bar */

/* ── v4.76: 🧪 Quiz 3.0 — palette, review-mode verdicts, video — thumb-friendly everywhere ── */
.qz-pal{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px;position:sticky;top:0;z-index:20;background:var(--card)}
.qz-dot{width:38px;height:38px;border-radius:10px;border:1.5px solid var(--line);background:#fff;font-weight:800;
  font-size:13px;cursor:pointer;padding:0;transition:all .12s ease}
.qz-dot.ans{background:#efedff;border-color:#5b4fc9;color:#3B3486}
.qz-dot.lockdot{background:#e5e7eb;color:#374151}
.qz-dot.ok{background:#0f766e;border-color:#0f766e;color:#fff}
.qz-dot.bad{background:#b91c1c;border-color:#b91c1c;color:#fff}
.qz-dot.cur{outline:3px solid rgba(91,79,201,.45);outline-offset:1px}
.qz-locked{opacity:.96;border-left:4px solid #9A96B8}
.qz-verdict{margin-top:10px;padding:11px 14px;border-radius:12px;font-size:14px;line-height:1.55}
.qz-verdict.ok{background:#e6faf5;border:1.5px solid #0f766e}
.qz-verdict.bad{background:#fde2e2;border:1.5px solid #b91c1c}
.qz-why{margin-top:6px;color:#374151}
.qz-video{margin:8px 0}
.qz-video iframe{width:100%;aspect-ratio:16/9;border:none;border-radius:12px;max-height:60vh}
.qz-lockbar{margin-top:8px;display:flex;gap:10px;align-items:center}
.qz-lockbar .btn{min-height:42px}
@media(max-width:700px){.qz-dot{width:34px;height:34px}.qz-pal{gap:5px;padding:8px}}

/* ── v4.78: 🎬 interactive VIDEO quiz — sticky player, hidden checkpoint questions, pop reveal ── */
.pill.coralpill{background:#ffe9e4;color:#b03a26;border:1px solid #E2604C}
.qzv-banner{padding:12px 16px;border-left:4px solid #E2604C;line-height:1.7}
.qzv-wrap{position:sticky;top:0;z-index:30;padding:10px 12px;box-shadow:0 6px 18px rgba(30,25,70,.12)}
.qzv-frame video,.qzv-frame iframe{width:100%;aspect-ratio:16/9;border:none;border-radius:12px;background:#000;
  max-height:52vh;display:block}
.qzv-bar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:8px}
.qzv-wait{display:none}                              /* checkpoint questions stay hidden until the video reaches them */
.qzv-pop{animation:qzvpop .45s ease;border-left:4px solid #E2604C}
@keyframes qzvpop{0%{transform:translateY(14px);opacity:0}100%{transform:translateY(0);opacity:1}}
@media(max-width:700px){
  .qzv-wrap{padding:8px}
  .qzv-frame video,.qzv-frame iframe{border-radius:10px;max-height:38vh}
  .qzv-bar{gap:6px}
}
.qzv-wrap ~ .qz-pal{position:static}                 /* in a video quiz the PLAYER owns the sticky top spot */

/* ── v4.79: 📥 import dialog redesign (drop zone first) + 📊 visual results charts ── */
.imp-drop{border:2.5px dashed #B7B0DC;border-radius:18px;padding:26px 18px;text-align:center;cursor:pointer;
  background:linear-gradient(180deg,#FBFAFF,#F5F3FC);transition:all .18s ease;outline:none}
.imp-drop:hover,.imp-drop:focus-visible{border-color:#5b4fc9;box-shadow:0 0 0 4px rgba(91,79,201,.12)}
.imp-drop.over{border-color:#5b4fc9;background:rgba(91,79,201,.08);transform:scale(1.005)}
.imp-drop-ico{font-size:34px;line-height:1;margin-bottom:8px}
.imp-drop-t{margin:0 0 4px;font-weight:800;font-size:17px}
.imp-drop-s{margin:0 0 8px;color:#8b87a8;font-size:12.5px}
.imp-ai{border:1.5px solid var(--line);border-radius:14px;padding:10px 14px;margin-top:4px;background:#fff}
.imp-ai summary{cursor:pointer;font-weight:800}
.imp-ai label{margin-top:8px}
.qz-viz{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.qz-viz h4{margin:0 0 8px}
.qz-chart{width:100%;height:auto;display:block}
.qz-viz-scroll{max-height:340px;overflow-y:auto}
.qzc-num{font:700 12px Inter,sans-serif;fill:#3B3486}
.qzc-lab{font:600 11px Inter,sans-serif;fill:#8b87a8}
.qzc-avg{font:800 11px Inter,sans-serif;fill:#E2604C}
@media(max-width:700px){
  .imp-drop{padding:18px 12px}
  .qz-viz{grid-template-columns:1fr;gap:14px}
  .qz-viz-scroll{max-height:260px}
}

/* ── v4.80: 🛟 Claude-reformat rescue steps + 📋 paste-import ── */
.imp-steps{display:flex;flex-direction:column;gap:8px;margin:10px 0}
.imp-step{display:flex;gap:10px;align-items:center;flex-wrap:wrap;line-height:1.6}
.imp-step>b{flex:0 0 26px;height:26px;border-radius:50%;background:#5b4fc9;color:#fff;display:inline-flex;
  align-items:center;justify-content:center;font-size:13px}
#impPromptTa{width:100%;background:#F7F6FC;border:1.5px solid var(--line);border-radius:10px;padding:10px;line-height:1.5}
#impPaste{font-family:ui-monospace,monospace;font-size:12.5px}
@media(max-width:700px){.imp-step{align-items:flex-start}.imp-step>b{margin-top:2px}}

/* ── v4.81: 🧭 quick-nav chips · 🕓 sort & freshness · 🗂 banks redesign · bigger readable text ── */
.qz-chipbar{display:flex;gap:8px;flex-wrap:wrap;position:sticky;top:0;z-index:25;background:var(--bg,#F4F2FB);
  padding:8px 0;margin-bottom:6px}
.qz-chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:10px 18px;font-weight:800;
  font-size:14.5px;cursor:pointer;min-height:44px;transition:all .15s ease}
.qz-chip:hover{border-color:#5b4fc9;color:#3B3486}
.qz-chip.on{background:#3B3486;border-color:#3B3486;color:#fff}
.qz-card .help{font-size:13.5px;line-height:1.8}
.qz-folder summary{font-size:18px !important}
.bank-explain summary{cursor:pointer;font-weight:800;font-size:16.5px}
.bank-compare{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-top:10px}
.bank-compare>div{background:#F7F6FC;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;
  font-size:14px;line-height:1.65}
.bank-form label{font-size:15px}
.bank-form input{font-size:16.5px;padding:13px 14px;border:2px solid #B7B0DC;border-radius:12px;background:#fff}
.bank-form input:focus{border-color:#5b4fc9;box-shadow:0 0 0 4px rgba(91,79,201,.14);outline:none}
.bank-create{font-size:16px;font-weight:800;padding:12px 22px;min-height:48px}
.bank-card{padding:14px 18px}
.bank-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.bank-name{font-size:16.5px;font-weight:800;flex:1;min-width:200px}
.bank-acts{display:flex;gap:8px;flex-wrap:wrap}
.bank-acts .btn{min-height:44px}
@media(max-width:700px){
  .qz-chipbar{gap:6px}
  .qz-chip{flex:1;text-align:center;padding:10px 8px;font-size:13.5px}
  .bank-acts{width:100%}
  .bank-acts .btn{flex:1}
  .bank-compare{grid-template-columns:1fr}
}

/* ── v4.82: ✅ after-import "where is it" screen ── */
.imp-done{text-align:left}
.imp-done-ico{font-size:44px;line-height:1;margin-bottom:6px}
.imp-done-name{font-size:18px;font-weight:800;margin:0 0 10px}
.imp-done-loc{background:#F0FDF9;border:1.5px solid #0f766e;border-radius:12px;padding:12px 14px;
  font-size:14.5px;line-height:1.7}
.imp-done-next{margin-top:12px;background:#F7F6FC;border:1.5px solid var(--line);border-radius:12px;
  padding:12px 14px;display:flex;flex-direction:column;gap:8px;font-size:14px;line-height:1.65}
@media(max-width:700px){
  .imp-done .btn{width:100%}
  .imp-done-loc,.imp-done-next{font-size:13.5px}
}

/* ── v4.85: 📌 frozen next-step bar in the import preview + ✏️ two-column edit dialog ── */
.imp-actions{position:sticky;bottom:-22px;margin:12px -22px -22px;padding:12px 22px 16px;background:#fff;
  border-top:2px solid var(--line);display:flex;gap:10px;flex-wrap:wrap;align-items:center;z-index:30;
  box-shadow:0 -6px 16px rgba(30,25,70,.08)}
.imp-actions .btn{min-height:46px}
.imp-next{background:#E2604C;color:#fff;font-weight:900;font-size:12.5px;border-radius:999px;padding:6px 12px;
  letter-spacing:.4px}
.qf-wrap{display:grid;grid-template-columns:1fr 1fr;gap:2px 20px;align-items:start}
.qf-wrap > label:has(#qfText),.qf-wrap > #qfMCQ,.qf-wrap > #qfSHORT,
.qf-wrap > label:has(#qfFb),.qf-wrap > .grid,.qf-wrap > p.help{grid-column:1/-1}
.qf-img{grid-column:1/-1;border:1.5px dashed var(--line);border-radius:12px;padding:12px 14px;margin:8px 0;background:#FBFAFF}
.qf-img img{max-height:160px;max-width:100%;border-radius:10px;display:block;margin-top:8px}
.qf-save{position:sticky;bottom:-22px;margin:12px -22px -22px;padding:12px 22px 16px;background:#fff;
  border-top:2px solid var(--line);display:flex;gap:12px;align-items:center;flex-wrap:wrap;z-index:30;
  box-shadow:0 -6px 16px rgba(30,25,70,.08)}
.qf-save .btn{min-height:48px;font-size:16px;font-weight:800;padding:10px 26px}
@media(max-width:760px){
  .qf-wrap{grid-template-columns:1fr}
  .imp-actions,.qf-save{bottom:-16px;margin:12px -16px -16px;padding:10px 16px 14px}
  .imp-actions .btn,.qf-save .btn{width:100%}
}
.imp-tpl{border:1.5px solid var(--line);border-radius:12px;padding:10px 14px;margin-top:8px;background:#F7FDF9}
.imp-tpl .btn{min-height:42px}
@media(max-width:700px){.imp-tpl .btn{flex:1;text-align:center}}

/* ── v4.86: 📌 frozen quiz-editor top bar · 🔤 lettered options · 🚨 anti-cheat no-select ── */
.qz-edbar{position:sticky;top:0;z-index:28;background:var(--bg,#F4F2FB);padding:10px 0;box-shadow:0 4px 12px rgba(30,25,70,.06)}
.qz-optlet{display:inline-block;min-width:22px;height:22px;line-height:22px;text-align:center;border-radius:6px;
  background:#EFEDFF;color:#3B3486;font-weight:800;font-size:12px;margin-right:2px}
.qz-optlet.ok{background:#0f766e;color:#fff}
.qz-opt .qz-optlet{background:#EFEDFF;border-radius:6px;padding:0 6px;margin-right:6px}
.qz-noselect,.qz-noselect *{-webkit-user-select:none;user-select:none}
.qz-noselect input,.qz-noselect textarea{-webkit-user-select:text;user-select:text}

/* ═════════ v4.87: 🌍 EXAM STUDIO ═════════ */
.ex-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}
.ex-tile{display:flex;flex-direction:column;gap:5px;align-items:flex-start;text-align:left;padding:14px;border:1.5px solid var(--line);
  border-radius:14px;background:#fff;cursor:pointer;font:inherit;transition:transform .12s ease,box-shadow .12s ease}
.ex-tile:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(59,52,134,.14)}
.ex-tile-ico{font-size:26px}
.ex-tile-name{font-weight:800;font-size:16px;color:#3d3a55}
.ex-bar{display:block;width:100%;height:7px;border-radius:99px;background:#efedff;overflow:hidden}
.ex-bar span{display:block;height:100%;border-radius:99px;transition:width .3s ease}
.ex-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0 4px;border-bottom:2px solid var(--line);padding-bottom:8px}
.ex-tab{border:1.5px solid var(--line);background:#fff;border-radius:99px;padding:7px 14px;font:inherit;font-weight:700;font-size:13.5px;cursor:pointer;color:#5a5678}
.ex-tab.on{background:#3B3486;border-color:#3B3486;color:#fff}
.ex-crit{border:1.5px solid var(--line);border-radius:12px;padding:10px 14px;margin:8px 0;background:#fff}
.ex-crit summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;font-size:15px}
.ex-crit summary::-webkit-details-marker{display:none}
.ex-crit .ex-chev{margin-left:auto;transition:transform .15s ease;color:#8b87a8}
.ex-crit[open] .ex-chev{transform:rotate(180deg)}
.ex-weight{background:#efedff;color:#3B3486;font-weight:800;font-size:12px;border-radius:99px;padding:2px 9px}
.ex-example{border:1.5px dashed #c7d2fe;border-radius:12px;padding:10px 14px;margin:10px 0;background:#f8faff}
.ex-item{border:1.5px solid var(--line);border-radius:12px;margin:8px 0;background:#fff}
.ex-item summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:9px;padding:11px 14px}
.ex-item summary::-webkit-details-marker{display:none}
.ex-item .ex-chev{margin-left:auto;color:#8b87a8}
.ex-item[open] .ex-chev{transform:rotate(180deg)}
.ex-item-body{padding:2px 16px 14px}
.ex-num{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:26px;border-radius:50%;
  background:#efedff;color:#3B3486;font-weight:800;font-size:13px}
.ex-num.done{background:#0f766e;color:#fff}
.ex-audio{display:flex;gap:10px;align-items:center;flex-wrap:wrap;background:#f5f3ff;border-radius:10px;padding:8px 12px;margin:8px 0}
.ex-script{background:#fffbeb;border-left:4px solid #f59e0b;border-radius:8px;padding:8px 12px;margin:8px 0;font-size:14px}
.ex-passage{background:#f8fafc;border:1.5px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0;font-size:14.5px;line-height:1.55;white-space:pre-wrap}
.ex-task{background:#eef2ff;border-left:4px solid #6366f1;border-radius:8px;padding:10px 14px;margin:8px 0;font-size:14.5px;line-height:1.5}
.ex-opts{display:flex;flex-direction:column;gap:7px;margin:6px 0}
.ex-opt{text-align:left;border:1.5px solid var(--line);border-radius:10px;background:#fff;padding:10px 13px;font:inherit;font-size:14.5px;cursor:pointer;transition:background .12s}
.ex-opt:hover:not(:disabled){background:#f5f3ff}
.ex-opt.right{background:#dcfce7;border-color:#16a34a;font-weight:700}
.ex-opt.wrong{background:#fee2e2;border-color:#dc2626}
.ex-verdict{border-radius:10px;padding:10px 14px;margin:8px 0;font-weight:700}
.ex-verdict.ok{background:#ecfdf5;border:1.5px solid #10b981;color:#065f46}
.ex-verdict.no{background:#fef2f2;border:1.5px solid #f87171;color:#7f1d1d}
.ex-model{background:#f0fdf4;border:1.5px solid #86efac;border-radius:10px;padding:10px 14px;margin:8px 0;font-size:14.5px}
.ex-transcript{background:#faf5ff;border:1.5px solid #d8b4fe;border-radius:10px;padding:10px 14px;margin:8px 0;min-height:44px;font-size:15px;line-height:1.55}
.btn.rec{background:#dc2626!important;border-color:#dc2626!important;color:#fff!important;animation:exPulse 1.2s infinite}
@keyframes exPulse{0%,100%{box-shadow:0 0 0 0 rgba(220,38,38,.45)}50%{box-shadow:0 0 0 8px rgba(220,38,38,0)}}
.ex-report{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;background:#f5f3ff;border-radius:14px;padding:14px;margin:10px 0}
.ex-band{min-width:84px;height:84px;border-radius:50%;background:linear-gradient(135deg,#5b21b6,#3B3486);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:900;box-shadow:0 6px 16px rgba(91,33,182,.35)}
.ex-annotated{background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;line-height:1.9;font-size:15px;white-space:pre-wrap}
.ex-annotated mark,.exm-ok{background:transparent;color:inherit;border-radius:4px;padding:1px 2px}
mark.exm-err{background:#fee2e2;color:#991b1b;text-decoration:underline wavy #dc2626 1.5px;text-underline-offset:3px}
mark.exm-good{background:#dcfce7;color:#14532d;font-weight:700}
.ex-corr{display:flex;flex-direction:column;gap:6px}
.ex-corr-row{display:flex;gap:8px;align-items:baseline;flex-wrap:wrap;background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:8px 12px}
.ex-wrong{background:#fee2e2;color:#991b1b;text-decoration:line-through;border-radius:6px;padding:2px 7px;font-weight:600}
.ex-arrow{color:#8b87a8;font-weight:800}
.ex-right{background:#dcfce7;color:#14532d;border-radius:6px;padding:2px 7px;font-weight:800}
.ex-chart{width:100%;max-width:620px;height:auto;background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:8px;margin:6px 0}
@media (max-width:640px){
  .ex-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
  .ex-report{flex-direction:column;align-items:center;text-align:center}
  .ex-tabs{gap:4px}.ex-tab{padding:6px 10px;font-size:12.5px}
  .ex-item summary{padding:10px 10px}.ex-item-body{padding:2px 10px 12px}
}

/* ═════════ v4.88: Coach, Reading Lab, tap-a-word, clues, timers ═════════ */
.ex-browser{border-radius:12px;padding:10px 14px;margin:10px 0;font-size:14px;font-weight:600}
.ex-browser.ok{background:#ecfdf5;border:1.5px solid #6ee7b7;color:#065f46}
.ex-browser.warn{background:#fef9c3;border:1.5px solid #fde047;color:#713f12}
.ex-guide{background:#eef2ff;border-left:4px solid #6366f1;border-radius:8px;padding:10px 14px;margin:8px 0;font-size:14px;line-height:1.5}
.ex-sets{display:flex;gap:8px;flex-wrap:wrap;align-items:center;background:#faf5ff;border-radius:10px;padding:10px 12px;margin:6px 0}
.ex-set{border:1.5px solid #d8b4fe;background:#fff;border-radius:99px;padding:6px 14px;font:inherit;font-weight:700;font-size:13px;cursor:pointer;color:#6d28d9}
.ex-set.on{background:#6d28d9;border-color:#6d28d9;color:#fff}
.ex-clock{background:#111827;color:#a7f3d0;font-weight:800;font-size:14px;border-radius:8px;padding:4px 10px;font-variant-numeric:tabular-nums}
.ex-clock.low{color:#fca5a5;animation:exPulse 1s infinite}
.ex-clue-btn{background:#fffbeb;border:1.5px solid #fde047;color:#854d0e;font-weight:700}
.ex-clue{display:inline-block;background:#fffbeb;border:1px solid #fde047;border-radius:8px;padding:6px 10px;margin-left:6px;font-size:13.5px;color:#713f12;max-width:100%}
.ex-w{cursor:pointer;border-bottom:1px dotted #c4b5fd;position:relative}
.ex-w:hover{background:#f5f3ff}
.ex-wordpop{position:absolute;left:0;top:100%;z-index:30;background:#fff;border:1.5px solid #6d28d9;border-radius:10px;padding:10px 12px;
  box-shadow:0 8px 24px rgba(76,29,149,.25);min-width:200px;max-width:280px;font-size:13.5px;font-weight:400;white-space:normal;line-height:1.5;margin-top:4px}
.ex-wordx{position:absolute;top:4px;right:8px;cursor:pointer;color:#9ca3af;font-weight:800}
/* Reading Lab — official split screen, neutral exam theme */
.rlab-split{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:12px}
.rlab-passage{background:#ffffff;border:1px solid #d1d5db;border-radius:6px;padding:18px 22px;max-height:70vh;overflow:auto;
  font-family:Georgia,'Times New Roman',serif;font-size:16px;line-height:1.7;color:#1f2937}
.rlab-passage h3{font-family:inherit}
.rlab-qs{max-height:70vh;overflow:auto;padding-right:4px}
.rlab-q{background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px;padding:12px 14px;margin-bottom:10px;overflow:hidden}
@media (max-width:820px){ .rlab-split{grid-template-columns:1fr} .rlab-passage,.rlab-qs{max-height:none} }

/* ═════════ v4.89: sticky nav, section switcher, mock runner, request/search ═════════ */
.ex-topbar{position:sticky;top:0;z-index:40;display:flex;gap:10px;align-items:center;flex-wrap:wrap;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 12px;margin-bottom:10px;box-shadow:0 2px 10px rgba(59,52,134,.06)}
.ex-topbar-exam{font-size:15px;white-space:nowrap}
.ex-switch{display:flex;gap:6px;flex-wrap:wrap}
.ex-sw{border:1.5px solid var(--line);background:#fff;border-radius:99px;padding:6px 13px;font:inherit;font-weight:700;font-size:13px;cursor:pointer;color:#5a5678}
.ex-sw.on{background:#5b21b6;border-color:#5b21b6;color:#fff}
.ex-bottombar{position:sticky;bottom:0;z-index:40;display:none;gap:2px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:6px;margin-top:12px;box-shadow:0 -2px 12px rgba(59,52,134,.08)}
.ex-bb{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;border:0;background:transparent;font:inherit;
  font-size:11px;font-weight:700;color:#6b7280;cursor:pointer;padding:6px 2px;border-radius:10px}
.ex-bb.on{background:#f5f3ff;color:#5b21b6}
.ex-bb span{font-size:10.5px}
.ex-req{background:#fef9c3;color:#854d0e;font-weight:700;font-size:11.5px;border-radius:99px;padding:2px 8px;margin-left:6px}
.ex-mock-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px;margin-top:10px}
.ex-mock-card{text-align:left;display:flex;flex-direction:column;gap:4px;border:1.5px solid var(--line);border-radius:12px;background:#fff;padding:12px 14px;cursor:pointer;font:inherit;transition:transform .12s,box-shadow .12s}
.ex-mock-card:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(212,61,61,.14);border-color:#d43d3d}
.ex-exam-top{position:sticky;top:0;z-index:45;display:flex;gap:10px;align-items:center;background:#1f2937;color:#fff;border-radius:12px;padding:9px 14px;margin-bottom:10px}
.ex-exam-top b{flex:1;font-size:14px}
.ex-exam-timer{background:#111827;color:#a7f3d0;font-weight:800;border:1px solid #374151;border-radius:8px;padding:4px 12px;font-variant-numeric:tabular-nums}
.ex-exam-timer.low{color:#fca5a5;animation:exPulse 1s infinite}
.ex-mock-shell{display:grid;grid-template-columns:1.1fr 1fr;gap:16px}
.ex-qnav{position:sticky;bottom:0;z-index:45;display:flex;gap:5px;flex-wrap:wrap;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 10px;margin-top:10px;box-shadow:0 -2px 12px rgba(0,0,0,.06)}
.ex-qn{width:32px;height:32px;border:1.5px solid var(--line);background:#fff;border-radius:8px;font:inherit;font-weight:700;font-size:13px;cursor:pointer;color:#374151}
.ex-qn.answered{background:#eef2ff;border-color:#6366f1;color:#3730a3}
.ex-qn.cur{outline:2px solid #6d28d9}
.ex-qn.right{background:#dcfce7;border-color:#16a34a;color:#14532d}
.ex-qn.wrong{background:#fee2e2;border-color:#dc2626;color:#7f1d1d}
.ex-opt.sel{background:#ede9fe;border-color:#6d28d9;font-weight:700}
@media (max-width:820px){ .ex-mock-shell{grid-template-columns:1fr} }
@media (max-width:640px){ .ex-bottombar{display:flex} .ex-topbar .ex-switch{display:none} }

/* ═════════ v4.90: timer controls, plan chip, next-step, study notes ═════════ */
.ex-tctl{border:1.5px solid var(--line);background:#fff;border-radius:8px;padding:4px 9px;font:inherit;font-size:14px;cursor:pointer;line-height:1}
.ex-exam-top .ex-tctl{background:#374151;border-color:#4b5563;color:#fff}
.ex-plan-chip{background:#0f766e;color:#fff;border-radius:99px;padding:3px 10px;font-size:11.5px;font-weight:700;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ex-next{margin-top:14px;background:#f0fdf4;border:1.5px solid #86efac;border-radius:12px;padding:12px 14px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.ex-next b{margin-right:4px}
@media (max-width:640px){ .ex-plan-chip{display:none} .ex-exam-top b{font-size:12.5px} }

/* ═════════ v4.91: practice grid, voice controls, specific clues ═════════ */
.ex-pgrid{display:grid;grid-template-columns:1fr;gap:12px;margin-top:6px}
@media (min-width:700px){ .ex-pgrid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1100px){ .ex-pgrid{grid-template-columns:repeat(3,1fr)} }
@media (min-width:1600px){ .ex-pgrid{grid-template-columns:repeat(4,1fr)} }
.ex-pcard{border:1.5px solid var(--line);border-radius:12px;background:#fff;padding:12px 14px;display:flex;flex-direction:column}
.ex-pcard-head{display:flex;align-items:center;gap:9px;margin-bottom:6px;padding-bottom:6px;border-bottom:1px solid #f0eefb}
.ex-voice{display:inline-flex;gap:4px;align-items:center;background:#f5f3ff;border-radius:99px;padding:3px 8px}
.ex-vbtn{border:1.5px solid var(--line);background:#fff;border-radius:99px;padding:3px 9px;font:inherit;font-size:12.5px;font-weight:700;cursor:pointer;color:#5a5678;line-height:1.3}
.ex-vbtn.on{background:#5b21b6;border-color:#5b21b6;color:#fff}
.ex-clue{display:block;margin:6px 0 0}
.modal-back{position:fixed;inset:0;background:rgba(30,27,60,.45);z-index:200;display:flex;align-items:center;justify-content:center;padding:16px}
.modal-back .modal{background:#fff;border-radius:16px;padding:20px;max-width:520px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,.3)}

/* ═════════ v4.92: token-saving — copy-for-marking, quick-check, ready-made prompts ═════════ */
.ex-ai-opt{border-style:dashed!important;color:#6b7280!important;font-size:12.5px}
.ex-token-note{background:#fffbeb;border:1.5px solid #fde047;border-radius:12px;padding:12px 14px;margin-top:12px;font-size:14px}
.ex-quickcheck{background:#f0fdf4;border:1.5px solid #86efac;border-radius:12px;padding:12px 14px;margin-top:10px}
.ex-prompt{white-space:pre-wrap;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:12.5px;line-height:1.5;max-height:300px;overflow:auto;font-family:ui-monospace,Menlo,Consolas,monospace}

/* ═════════ v4.93: sticky set bar, floating nav, structure clues ═════════ */
.ex-sets{position:sticky;top:58px;z-index:35}
.ex-floatnav{position:fixed;right:14px;bottom:80px;z-index:60;display:flex;flex-direction:column;gap:6px}
.ex-floatnav button{width:40px;height:40px;border-radius:50%;border:1.5px solid var(--line);background:#fff;color:#3B3486;font-size:18px;font-weight:800;cursor:pointer;box-shadow:0 4px 14px rgba(59,52,134,.22)}
.ex-floatnav button:hover{background:#f5f3ff}
.ex-struct{background:#faf5ff;border:1.5px solid #d8b4fe;border-radius:12px;padding:12px 14px;margin-top:8px}
@media (max-width:640px){ .ex-sets{top:auto;position:static} .ex-filter{top:auto;position:static} .ex-floatnav{bottom:70px;right:10px} .ex-floatnav button{width:36px;height:36px} }

/* ═════════ v4.94: bigger writing bank UI — template, readability, one-click model ═════════ */
.ex-tpl{white-space:pre-wrap;background:#111827;color:#f1f5f9;border-radius:10px;padding:12px 14px;font-size:13.5px;line-height:1.6;font-family:ui-monospace,Menlo,Consolas,monospace;max-height:280px;overflow:auto;margin:6px 0}
/* daylight readability: darker, slightly heavier text + higher-contrast passage/task blocks */
#page-exam{color:#14121f}
#page-exam .help{color:#4a4763}
#page-exam .ex-passage,#page-exam .ex-task,#page-exam .rlab-passage{color:#111827;font-weight:450}
.rlab-passage{font-size:16.5px;color:#0f172a}
.ex-passage{font-size:15px;color:#111827}
#page-exam .ex-opt{color:#14121f;font-weight:600}
#page-exam .ex-model{font-size:15px;color:#0f172a}
.ex-fullmodel{background:#f0fdf4;border:2px solid #16a34a;border-radius:12px;padding:14px 16px;margin-top:8px}
.ex-fullmodel h4{margin:0 0 6px;color:#14532d}

/* ═════════ v4.95 · writing workbench, phrases, notes/whiteboard, steps, key-info, highlight, rubric ═════════ */
/* writing toolbar + expanding answer box + full screen */
.ex-wtools{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:6px 0}
.ex-writewrap{position:relative}
.ex-answerbox{width:100%;font-size:15.5px;line-height:1.6;color:#0f172a;border:1.5px solid var(--line);border-radius:10px;padding:11px 13px;transition:min-height .18s ease,box-shadow .18s ease;min-height:180px;resize:vertical}
.ex-answerbox.big{min-height:60vh;box-shadow:0 8px 30px rgba(59,52,134,.14);border-color:var(--iris)}
/* generic full-screen: works on the whole mock shell (question + answer) or a practice card */
.ex-fs{position:fixed !important;inset:0;z-index:9000;background:#fff;padding:18px 20px 78px;overflow:auto;margin:0 !important;max-width:none !important;border-radius:0}
.ex-fs-lock{overflow:hidden}
.ex-fs.ex-mock-shell{display:grid;grid-template-columns:1.15fr 1fr;gap:20px;align-content:start}
.ex-fs .rlab-passage,.ex-fs .rlab-qs{max-height:calc(100vh - 110px)}
.ex-fs .ex-answerbox{min-height:38vh}
.ex-fs .ex-answerbox.big{min-height:60vh}
.ex-fs-close{position:fixed;right:16px;bottom:16px;z-index:9100;background:var(--iris);color:#fff;border:none;border-radius:99px;padding:11px 18px;font-weight:700;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.25)}
@media (max-width:820px){ .ex-fs.ex-mock-shell{grid-template-columns:1fr} .ex-fs{padding:14px 14px 76px} .ex-fs .rlab-passage,.ex-fs .rlab-qs{max-height:none} }

/* highlight / underline while reading */
.ex-hilite-bar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;position:sticky;top:0;z-index:5;background:#fff;padding:6px 0;margin-bottom:6px;border-bottom:1px dashed var(--line)}
.ex-hi{background:#fef08a;border-radius:3px;padding:0 1px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.ex-ul{text-decoration:underline;text-decoration-color:#dc2626;text-decoration-thickness:2px;text-underline-offset:2px}

/* Task 1 / Task 2 filter + group headings + quick-nav (frozen bottom pane) */
.ex-filter{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:0 0 8px;background:#faf5ff;border:1px solid #ece7f8;border-radius:10px;padding:8px 12px;position:sticky;top:104px;z-index:34;box-shadow:0 3px 10px rgba(59,52,134,.05)}
.ex-group-h{margin:14px 0 6px;color:var(--iris-d);font-size:16px;border-left:4px solid var(--iris);padding-left:8px}
.ex-qjump{position:sticky;bottom:0;z-index:20;display:flex;gap:6px;overflow-x:auto;background:#faf5ff;border:1.5px solid #d8b4fe;border-radius:12px;padding:8px;margin:6px 0 10px;box-shadow:0 -3px 10px rgba(59,52,134,.06)}
.ex-qjump button{white-space:nowrap;flex:0 0 auto;border:1px solid #d8b4fe;background:#fff;color:#6d28d9;border-radius:8px;padding:6px 10px;font-size:12.5px;font-weight:700;cursor:pointer}
.ex-qjump button:hover{background:#6d28d9;color:#fff}

/* ranked phrase dropdowns in the structure panel */
.ex-phrases{background:#fff;border:1.5px dashed #d8b4fe;border-radius:12px;padding:10px 12px;margin:8px 0}
.ex-phrase-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;margin-top:8px}
.ex-phrase-sel{margin:0;font-size:13px;padding:8px 9px;border:1.5px solid #d8b4fe;border-radius:9px;background:#faf5ff;color:#4c1d95;font-weight:600}

/* phrase chips on the Coach page */
.ex-coach-phrases{margin-top:8px}
.ex-phrase-chips{display:flex;flex-wrap:wrap;gap:7px;margin:8px 0 0}
.ex-phrase-chip{border:1px solid #d8b4fe;background:#faf5ff;color:#4c1d95;border-radius:99px;padding:6px 12px;font:inherit;font-size:13px;font-weight:600;cursor:pointer;text-align:left}
.ex-phrase-chip:hover{background:#6d28d9;color:#fff;border-color:#6d28d9}

/* notes / whiteboard panel */
.ex-notes{position:fixed;right:14px;bottom:14px;z-index:8000;width:min(560px,92vw);height:min(70vh,560px);min-width:280px;min-height:240px;max-width:98vw;display:flex;flex-direction:column;background:#fff;border:1.5px solid var(--iris);border-radius:14px;box-shadow:0 14px 44px rgba(0,0,0,.28);overflow:hidden;resize:both}
.ex-notes.hidden{display:none}
.ex-notes #exNotesText,.ex-notes #exNotesDraw{flex:1;min-height:0;display:flex;flex-direction:column;overflow:auto}
.ex-notes #exNotesDraw.hidden,.ex-notes #exNotesText.hidden{display:none}
.ex-notes #exNoteArea{flex:1}
.ex-notes-grip{cursor:move;opacity:.85;font-size:16px;line-height:1}
.ex-notes-head{display:flex;align-items:center;gap:10px;padding:9px 12px;background:var(--iris);color:#fff;flex-wrap:wrap;cursor:move;touch-action:none;user-select:none}
.ex-notes-head b{color:#fff}
.ex-notes-tabs{display:flex;gap:6px}
.ex-notes-tabs button{border:1px solid rgba(255,255,255,.5);background:transparent;color:#fff;border-radius:8px;padding:4px 10px;font-weight:700;font-size:12.5px;cursor:pointer}
.ex-notes-tabs button.on{background:#fff;color:var(--iris-d)}
.ex-notes-x{margin-left:auto;background:transparent;border:none;color:#fff;font-size:18px;cursor:pointer;line-height:1}
.ex-notes-tools{display:flex;gap:6px;flex-wrap:wrap;padding:8px 10px;border-bottom:1px solid var(--line)}
.ex-notes-tools .btn{padding:5px 10px;font-size:12.5px}
.ex-notes-tools .btn.on{background:var(--iris);color:#fff;border-color:var(--iris)}
#exNoteArea{width:calc(100% - 20px);margin:10px;min-height:220px;resize:vertical;font-size:14.5px;line-height:1.6}
#exNotesText.hidden,#exNotesDraw.hidden{display:none}
#exDrawCanvas{display:block;margin:10px;max-width:calc(100% - 20px);border:1.5px dashed var(--line);border-radius:10px;background:#fff;touch-action:none;cursor:crosshair}

/* guided steps + ON/OFF toggle + position picker */
.ex-steps{background:#eef2ff;border:1.5px solid #c7d2fe;border-radius:12px;padding:10px 12px;margin:8px 0}
.ex-steps-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.ex-steps-list{margin:10px 0 0 18px;padding:0}
.ex-steps-list>li{margin:8px 0}
.ex-steps-list ul{margin:4px 0 0 2px;padding-left:18px}
.ex-steps-body.hidden{display:none}
.ex-toggle{display:inline-flex;align-items:center;gap:8px;cursor:pointer;margin:0;font-weight:700;color:#3730a3}
.ex-toggle input{position:absolute;opacity:0;width:0;height:0}
.ex-toggle-track{width:42px;height:24px;border-radius:99px;background:#cbd5e1;position:relative;transition:background .18s}
.ex-toggle-knob{position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:#fff;transition:left .18s;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.ex-toggle.on .ex-toggle-track{background:#22c55e}
.ex-toggle.on .ex-toggle-knob{left:20px}
.ex-toggle-lab{font-size:12.5px}
.ex-pos{background:#fff;border:1px solid #c7d2fe;border-radius:10px;padding:8px 10px;margin:8px 0}
.ex-pos-opts{display:flex;flex-wrap:wrap;gap:7px}
.ex-pos-opt{border:1.5px solid #c7d2fe;background:#fff;color:#3730a3;border-radius:99px;padding:6px 12px;font:inherit;font-size:13px;font-weight:600;cursor:pointer}
.ex-pos-opt.sel{background:#4f46e5;border-color:#4f46e5;color:#fff}

/* key-information form */
.ex-keyinfo{background:#fffbeb;border:1.5px solid #fcd34d;border-radius:12px;padding:6px 12px 12px;margin:8px 0}
.ex-keyinfo summary{cursor:pointer;padding:6px 0;color:#92400e}
.ex-ki-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px;margin-top:6px}
.ex-ki-grid input{margin:0;font-size:13.5px}

/* instant offline rubric estimate */
.ex-rubric{background:#fff;border:1.5px solid #86efac;border-radius:12px;padding:12px 14px;margin-top:10px}
.ex-rubric-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ex-band-big{font-size:30px;font-weight:800;line-height:1}
.ex-rubric-tbl{width:100%;border-collapse:collapse;margin-top:8px}
.ex-rubric-tbl td{border-top:1px solid var(--line);padding:7px 8px;vertical-align:top;font-size:13.5px}
.ex-rubric-tbl td:nth-child(2){text-align:center;width:52px}

@media(max-width:640px){
  .ex-notes{right:6px;left:6px;bottom:6px;width:auto}
  .ex-phrase-grid{grid-template-columns:1fr 1fr}
  .ex-answerbox.big{min-height:52vh}
  #exDrawCanvas{width:calc(100% - 20px);height:auto}
}

/* ═════════ v4.97 · charts (big fonts, legend, zoom), coach collapse, exam shades, clue highlight ═════════ */
.ex-chartwrap{border:1.5px solid var(--line);border-radius:12px;padding:10px 12px 6px;margin:10px 0;background:#fff;cursor:zoom-in;transition:box-shadow .15s}
.ex-chartwrap:hover{box-shadow:0 6px 18px rgba(59,52,134,.12)}
.ex-chart-title{font-weight:800;font-size:15.5px;color:#26224e;margin:0 0 4px}
.ex-chart-legend{display:flex;gap:14px;flex-wrap:wrap;margin:2px 0 4px;font-size:14px;font-weight:700;color:#1f2937}
.ex-chart-legend i{display:inline-block;width:14px;height:14px;border-radius:4px;margin-right:5px;vertical-align:-2px}
.ex-chart{width:100%;height:auto;display:block}
.ex-chart-hint{font-size:11.5px;color:#8b87a8;text-align:right;padding:2px 0}
.ex-chart-modal{position:fixed;inset:0;z-index:9500;background:rgba(20,18,31,.72);display:flex;align-items:center;justify-content:center;padding:18px;cursor:zoom-out}
.ex-chart-modal-inner{background:#fff;border-radius:16px;padding:20px 22px;max-width:min(1100px,96vw);width:100%;max-height:92vh;overflow:auto;cursor:default;box-shadow:0 24px 70px rgba(0,0,0,.45)}
.ex-chart-modal-inner .ex-chart-title{font-size:19px}
.ex-chart-modal-inner .ex-chart-legend{font-size:16px}
.ex-chart-modal-x{position:sticky;top:0;float:right;background:var(--iris);color:#fff;border:none;border-radius:99px;padding:8px 16px;font-weight:700;cursor:pointer;margin-left:8px}
@media (max-width:640px){ .ex-chart-modal{padding:6px} .ex-chart-modal-inner{padding:12px} }

/* Coach & Library — collapsed by default, frozen clickable header */
.ex-coach-card{padding:0;overflow:visible}
.ex-coach-head{position:sticky;top:0;z-index:40;width:100%;display:flex;align-items:center;gap:10px;flex-wrap:wrap;border:none;background:linear-gradient(100deg,#f5f0ff,#eef7f4);border-radius:14px;padding:14px 18px;font:inherit;cursor:pointer;text-align:left}
.ex-coach-head h3{margin:0;font-size:17px}
.ex-coach-chev{margin-left:auto;font-weight:800;color:#6d28d9;font-size:13.5px;background:#fff;border:1.5px solid #d8b4fe;border-radius:99px;padding:6px 13px;white-space:nowrap}
.ex-coach-head:hover .ex-coach-chev{background:#6d28d9;color:#fff}
#exCoachBody{padding:6px 18px 16px}
#exCoachBody.hidden{display:none}

/* exam blocks — distinct shaded colours + clearer type */
.ex-exam-card{border-radius:16px;border:1.5px solid var(--line);padding:16px 18px;margin:14px 0}
.ex-exam-card h3{font-size:19px}
.ex-exam-card .ex-tile-name{font-size:15px;font-weight:800}
.ex-exam-card.ex-ielts{background:linear-gradient(180deg,#fdf2f2,#fff 140px);border-color:#f3cccc;border-top:5px solid #d43d3d}
.ex-exam-card.ex-toefl{background:linear-gradient(180deg,#eff4fd,#fff 140px);border-color:#c9d8f5;border-top:5px solid #2563eb}
.ex-exam-card.ex-toeic{background:linear-gradient(180deg,#eefaf4,#fff 140px);border-color:#c4e8d6;border-top:5px solid #0f766e}

/* reading clue highlight in the passage */
/* v4.99 FIX: the clue highlight is applied to <span class="ex-w"> tokens, NOT <mark> — so the
   selector must target the class itself, not a mark element (that was why nothing lit up). */
.ex-cluemark, mark.ex-cluemark{background:#fde047;color:#111827;border-radius:4px;padding:1px 2px;box-shadow:0 0 0 3px #fde047;font-weight:700;animation:exCluePulse 1s ease 3}
@keyframes exCluePulse{0%{box-shadow:0 0 0 3px #fde047}50%{box-shadow:0 0 0 9px rgba(245,158,11,.45)}100%{box-shadow:0 0 0 3px #fde047}}
.ex-clueguide{background:#fffbeb;border:1.5px solid #fcd34d;border-left:5px solid #f59e0b;border-radius:10px;padding:8px 12px;margin:6px 0;font-size:13.5px}

/* ═════════ v4.98 · expanding wizard fields, frozen action bar, workflow ribbon ═════════ */
.ex-ki-item{display:block;margin:0}
.ex-ki-lab{display:none;font-size:13px;font-weight:700;color:#92400e;margin:0 0 3px;line-height:1.35}
.ex-ki-item:focus-within{grid-column:1/-1}
.ex-ki-item:focus-within .ex-ki-lab{display:block}
.ex-ki-item:focus-within input{font-size:15.5px;padding:12px 14px;border-color:var(--iris);box-shadow:0 4px 14px rgba(59,52,134,.14)}
.ex-ki-grid input{transition:box-shadow .15s,padding .15s}

/* frozen writing action bar — stays on top while scrolling AND in full-screen */
.ex-actionbar{position:sticky;top:0;z-index:28;display:flex;gap:6px;flex-wrap:wrap;align-items:center;background:#fff;padding:8px 0 8px;border-bottom:1.5px dashed var(--line);margin-bottom:8px}
.ex-actionbar .btn{padding:6px 10px;font-size:12.5px}
.ex-fs .ex-actionbar{top:-18px;padding-top:18px}

/* step-by-step workflow ribbon with per-step minutes */
.ex-flow{display:flex;gap:6px;flex-wrap:wrap;align-items:stretch;margin:8px 0}
.ex-flow span{flex:1 1 100px;min-width:96px;background:#eef2ff;border:1.5px solid #c7d2fe;border-radius:10px;padding:7px 9px;font-size:12px;font-weight:700;color:#3730a3;line-height:1.3}
.ex-flow span i{display:block;font-style:normal;font-weight:400;font-size:11.5px;color:#6366f1}
@media (max-width:640px){ .ex-flow span{flex:1 1 44%} }

/* ═════════ v4.99 · flashcards + instant word popup ═════════ */
.ex-word-fast{color:#16a34a;font-weight:800}
.ex-flash-progress{display:flex;gap:10px;align-items:center;flex-wrap:wrap;background:#faf5ff;border:1px solid #ece7f8;border-radius:10px;padding:10px 12px}
.ex-flash-bar{flex:1;min-width:140px;height:12px;background:#ece7f8;border-radius:99px;overflow:hidden}
.ex-flash-bar>span{display:block;height:100%;background:linear-gradient(90deg,#7c3aed,#6d28d9);border-radius:99px;transition:width .3s}
.ex-flashcard{min-height:230px;border:2px solid #d8b4fe;border-radius:18px;padding:22px;margin:6px 0 12px;cursor:pointer;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(160deg,#ffffff,#faf5ff);transition:box-shadow .15s,transform .1s}
.ex-flashcard:hover{box-shadow:0 10px 30px rgba(109,40,217,.16)}
.ex-flashcard.flipped{background:linear-gradient(160deg,#f5fbf7,#ffffff);border-color:#86efac;cursor:default}
.ex-flash-front{text-align:center}
.ex-flash-word{font-family:var(--disp);font-weight:800;color:#4c1d95;font-size:24px}
.ex-flash-word.big{font-size:40px;margin-bottom:10px}
.ex-flash-pos{font-size:15px;color:#6b7280;font-weight:600;font-family:var(--body)}
.ex-flash-tick{font-size:13px;color:#16a34a;font-weight:700;margin-left:8px}
.ex-flash-def{font-size:18px;color:#111827;margin:10px 0;font-weight:600}
.ex-flash-exs{background:#ecfdf5;border-left:4px solid #10b981;border-radius:10px;padding:8px 14px;margin:8px 0}
.ex-flash-exs ol{margin:6px 0 0 18px;padding:0}
.ex-flash-exs li{margin:5px 0;font-size:15px}
.ex-flash-skills{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.ex-flash-skills span{background:#eef2ff;border:1px solid #c7d2fe;color:#3730a3;border-radius:99px;padding:3px 10px;font-size:12.5px;font-weight:700}
.ex-flash-controls{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.ex-flash-controls .btn{flex:1 1 auto;min-width:110px}
.ex-flash-know{background:#dcfce7;border-color:#16a34a;color:#166534;font-weight:800}
.ex-flash-again{background:#fef3c7;border-color:#f59e0b;color:#92400e;font-weight:800}
@media(max-width:640px){ .ex-flash-word.big{font-size:32px} .ex-flashcard{padding:16px;min-height:200px} }

/* ═════════ v5.00 · 🏆 Reading Mastery + 🎚 per-exam access switches ═════════ */
/* locked exam cards: visible but grey + unclickable (the admin controls per-exam access) */
.ex-exam-card.ex-locked{position:relative;filter:grayscale(.85);opacity:.62;cursor:not-allowed}
.ex-exam-card.ex-locked .ex-tile{pointer-events:none}
.ex-exam-card.ex-locked h3,.ex-exam-card.ex-locked .help{color:#6b7280}
.ex-lock-chip{display:inline-block;background:#374151;color:#f9fafb;border-radius:99px;padding:4px 12px;font-size:12.5px;font-weight:800;margin-bottom:6px}
.ex-exsw-wrap{display:inline-flex;gap:4px;flex-wrap:wrap;justify-content:center}
.ex-exsw-wrap.off{opacity:.45}
.ex-exsw{border:1.5px solid #d1d5db;background:#f9fafb;border-radius:99px;padding:3px 9px;font-size:12px;font-weight:800;cursor:pointer;color:#6b7280}
.ex-exsw.on{background:#dcfce7;border-color:#16a34a;color:#166534}
.ex-exsw:disabled{cursor:not-allowed}
/* mastery navigation + hero */
.rm-nav{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0 10px;position:sticky;top:100px;z-index:30;background:#fff;padding:8px 6px;border-radius:12px;box-shadow:0 3px 10px rgba(17,24,39,.08)}
.rm-chip{border:1.5px solid #c7d2fe;background:#eef2ff;color:#3730a3;border-radius:99px;padding:6px 13px;font-size:13.5px;font-weight:800;cursor:pointer}
.rm-chip.on{background:#4c1d95;border-color:#4c1d95;color:#fff}
.rm-chip.sm{padding:3px 9px;font-size:12px}
.rm-hero{background:linear-gradient(120deg,#312e81,#6d28d9 60%,#0f766e);color:#fff;border-radius:14px;padding:16px 18px;margin:0 0 12px}
.rm-hero h3{color:#fff}
.rm-stats{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:0 0 10px}
.rm-stat{background:#faf5ff;border:1.5px solid #e9d5ff;border-radius:10px;padding:7px 13px;font-size:14px}
.rm-stat.warn{background:#fef3c7;border-color:#f59e0b}
/* set grid + set page */
.rm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px;margin:10px 0}
.rm-setcard{text-align:left;background:#fff;border:1.5px solid #e5e7eb;border-radius:12px;padding:12px 14px;cursor:pointer;display:flex;flex-direction:column;gap:5px;font:inherit;transition:box-shadow .15s,transform .1s}
.rm-setcard:hover{box-shadow:0 8px 22px rgba(76,29,149,.14);transform:translateY(-1px)}
.rm-set-no{font-size:12px;font-weight:800;color:#6d28d9;letter-spacing:.4px}
.rm-badges{display:flex;gap:5px;flex-wrap:wrap}
.rm-badge{background:#6d28d9;color:#fff;border-radius:99px;padding:2px 9px;font-size:11.5px;font-weight:800}
.rm-badge.alt{background:#eef2ff;color:#3730a3;border:1px solid #c7d2fe}
.rm-toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:12px 0}
.rm-passage-box{background:#fffbeb;border:1.5px solid #fde68a;border-radius:12px;padding:10px 14px;margin:0 0 12px}
.rm-passage-box.sm{background:#f9fafb;border-color:#e5e7eb;margin:0 0 8px}
.rm-passage-box summary{cursor:pointer;font-weight:800}
.rm-passage p{margin:8px 0;line-height:1.65}
.rm-pletter{display:inline-block;background:#4c1d95;color:#fff;border-radius:7px;padding:0 8px;margin-right:6px;font-size:13px}
.rm-drill-list{display:flex;flex-direction:column;gap:8px}
.rm-drill-row{display:flex;justify-content:space-between;align-items:center;gap:10px;background:#fff;border:1.5px solid #e5e7eb;border-radius:12px;padding:11px 14px}
.rm-done{font-size:13px;font-weight:700;color:#b45309}
.rm-done.ok{color:#059669}
/* drill runner: split shell + the BIG clock */
.rm-shell{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;align-items:start;margin:6px 0}
.rm-left{position:sticky;top:118px;max-height:calc(100vh - 140px);overflow:auto;background:#fffdf5;border:1.5px solid #fde68a;border-radius:12px;padding:6px 14px}
.rm-clock{background:#0f172a;color:#fff;border-radius:16px;padding:14px 16px 12px;text-align:center;margin:0 0 12px;position:sticky;top:118px;z-index:25}
.rm-clock-digits{font-family:var(--disp);font-weight:900;font-size:64px;line-height:1;letter-spacing:2px;font-variant-numeric:tabular-nums}
.rm-clock-digits.ok{color:#4ade80}
.rm-clock-digits.warn{color:#fbbf24}
.rm-clock-digits.over{color:#f87171;animation:rmPulse 1s infinite}
@keyframes rmPulse{50%{opacity:.55}}
.rm-clock-sub{font-size:13px;color:#cbd5e1;margin-top:6px}
.rm-startbox{background:#eef2ff;border:2px dashed #818cf8;border-radius:14px;padding:20px;text-align:center}
/* questions + options */
.rm-q{background:#fff;border:1.5px solid #e5e7eb;border-radius:12px;padding:12px 14px;margin:0 0 10px}
.rm-q.ok{border-color:#86efac;background:#f6fef9}
.rm-q.bad{border-color:#fca5a5;background:#fff7f7}
.rm-q-text{margin:0 0 8px;font-size:15.5px}
.rm-opts{display:flex;flex-direction:column;gap:6px}
.rm-opts.row{flex-direction:row;flex-wrap:wrap}
.rm-opt{text-align:left;border:1.5px solid #d1d5db;background:#f9fafb;border-radius:10px;padding:8px 12px;font:inherit;font-size:14.5px;cursor:pointer}
.rm-opt:hover{border-color:#818cf8}
.rm-opt.sel{border-color:#4c1d95;background:#ede9fe;font-weight:700}
.rm-opt.big{font-weight:800;padding:10px 18px}
.rm-optlet{display:inline-block;background:#e5e7eb;border-radius:6px;padding:0 7px;font-weight:800;margin-right:4px}
.rm-opt.sel .rm-optlet{background:#4c1d95;color:#fff}
.rm-match{display:flex;flex-direction:column;gap:6px}
.rm-match-row{display:flex;gap:8px;align-items:center}
.rm-match-row span{flex:1;font-size:14.5px}
.rm-match-row select,.rm-match-row input{margin:0;max-width:220px}
.rm-gapset{display:flex;flex-direction:column;gap:6px}
.rm-open{width:100%;margin:0}
.rm-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:12px 0}
/* feedback + verdict + TRACE */
.rm-fb{border-radius:10px;padding:9px 12px;margin-top:8px;font-size:14px}
.rm-fb.ok{background:#dcfce7;border-left:4px solid #16a34a}
.rm-fb.bad{background:#fee2e2;border-left:4px solid #dc2626}
.rm-fb.soft{background:#eef2ff;border-left:4px solid #6366f1}
.rm-ev{display:inline-block;color:#374151;font-size:13px;margin-top:4px}
.rm-selfrow{display:flex;justify-content:space-between;gap:8px;align-items:center;margin:6px 0;flex-wrap:wrap}
.rm-selfbtns{display:inline-flex;gap:6px;margin-left:6px}
.rm-verdict{background:#fff;border:2px solid #e5e7eb;border-radius:14px;padding:14px 16px;margin:10px 0;text-align:center}
.rm-verdict.ok{border-color:#16a34a;background:#f6fef9}
.rm-verdict-score{font-family:var(--disp);font-weight:900;font-size:38px}
.rm-over-note{color:#b45309;font-weight:700}
.rm-trace{background:#fffbeb;border:1.5px solid #fde68a;border-radius:12px;padding:12px 14px;margin:10px 0}
.rm-trace-row{display:flex;justify-content:space-between;gap:8px;align-items:center;flex-wrap:wrap;margin:8px 0;border-bottom:1px dashed #fde68a;padding-bottom:6px}
.rm-trace-chips{display:inline-flex;gap:4px;flex-wrap:wrap}
.rm-due{background:#fee2e2;border-color:#dc2626;color:#991b1b;font-weight:800}
/* traps + method + vocab + dashboard */
.rm-trap{background:#fff;border:1.5px solid #e5e7eb;border-radius:12px;padding:10px 14px;margin:0 0 8px}
.rm-trap summary{cursor:pointer}
.rm-rule{background:#ecfdf5;border-left:4px solid #10b981;border-radius:8px;padding:7px 10px;font-weight:700;margin:8px 0}
.rm-cols{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rm-h4{margin:16px 0 8px;font-size:16.5px}
.rm-step{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1.5px solid #e5e7eb;border-radius:12px;padding:10px 12px;margin:0 0 8px}
.rm-step-k{flex:0 0 34px;height:34px;border-radius:10px;background:#4c1d95;color:#fff;font-weight:900;font-size:17px;display:flex;align-items:center;justify-content:center}
.rm-step-k.alt{background:#0f766e}
.rm-ul{margin:6px 0 10px 20px;padding:0}
.rm-ul li{margin:5px 0}
.rm-pairgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;margin:8px 0}
.rm-pair{border:1.5px solid #e9d5ff;background:#faf5ff;border-radius:12px;padding:10px 12px;text-align:left;font:inherit;cursor:pointer;display:flex;flex-direction:column;gap:4px}
.rm-pair.open{background:#ede9fe;border-color:#a78bfa}
.rm-pair.static{cursor:default}
.rm-typebars{display:flex;flex-direction:column;gap:7px;margin:8px 0}
.rm-typebar{display:flex;gap:10px;align-items:center}
.rm-typebar-lab{flex:0 0 240px;font-size:13.5px;font-weight:700}
.rm-typebar-track{flex:1;height:14px;background:#f3f4f6;border-radius:99px;overflow:hidden}
.rm-typebar-fill{display:block;height:100%;border-radius:99px}
.rm-typebar-fill.ok{background:#16a34a}
.rm-typebar-fill.mid{background:#f59e0b}
.rm-typebar-fill.low{background:#dc2626}
.rm-cell-over{color:#b45309;font-weight:800}
@media (max-width:900px){
  .rm-shell{grid-template-columns:1fr}
  .rm-left{position:static;max-height:340px}
  .rm-clock{position:sticky;top:64px}
  .rm-clock-digits{font-size:46px}
  .rm-cols{grid-template-columns:1fr}
  .rm-typebar-lab{flex-basis:130px}
  .rm-nav{top:64px}
}

/* ═════════ v5.01 · 🏆 Writing Mastery (offline coach) ═════════ */
.wm-ta{min-height:170px;font-size:15.5px;line-height:1.6}
.wm-count{background:#ede9fe;border-radius:99px;padding:4px 12px;font-weight:800;color:#4c1d95;font-size:13.5px}
.wm-clue{background:#eef2ff;border:1.5px dashed #818cf8;border-radius:12px;padding:8px 12px;margin:10px 0}
.wm-clue.open{background:#e0e7ff;border-style:solid}
.wm-clue-body{margin-top:6px}
.wm-check{border-radius:9px;padding:6px 10px;margin:4px 0;font-size:14px}
.wm-check.ok{background:#f0fdf4;border-left:4px solid #16a34a}
.wm-check.bad{background:#fef2f2;border-left:4px solid #dc2626}
.wm-model{background:#ecfdf5;border-left:4px solid #10b981;border-radius:10px;padding:10px 14px;line-height:1.65;font-size:15px}
@media (max-width:640px){ .wm-ta{min-height:150px} }

/* ═════════ v5.02 · journey polish: jump-flash + next-step chips ═════════ */
.ex-flash{animation:exFlash 1.6s ease-out}
@keyframes exFlash{0%{box-shadow:0 0 0 4px #a78bfa;background:#f5f3ff}70%{box-shadow:0 0 0 4px #a78bfa66}100%{box-shadow:none}}
.ex-nextchip{margin:16px 0 4px;text-align:center}
.ex-nextchip .btn{font-size:15.5px;padding:11px 22px}

/* ═════════ v5.03 · frozen journey bar · drill navigation · fs big clock ═════════ */
/* the ①–⑤ tab bar freezes under the module top bar */
.ex-tabs{position:sticky;top:52px;z-index:36;background:#fff}
/* mastery drill toolbar can freeze below the nav chips */
.rm-toolbar.sticky{position:sticky;top:152px;z-index:28;background:#fff;padding:8px 6px;border-radius:12px;box-shadow:0 3px 10px rgba(17,24,39,.08)}
.rm-here{background:#4c1d95;color:#fff;border-radius:99px;padding:4px 12px;font-size:13px;font-weight:800;white-space:nowrap}
.rm-dtitle{font-size:15.5px}
.rm-dchips{display:inline-flex;gap:4px}
.rm-dchip{width:30px;height:30px;border-radius:9px;border:1.5px solid #d1d5db;background:#f9fafb;font-weight:800;cursor:pointer;font-size:13.5px}
.rm-dchip.done{background:#fef3c7;border-color:#f59e0b}
.rm-dchip.ok{background:#dcfce7;border-color:#16a34a}
.rm-dchip.cur{background:#4c1d95;border-color:#4c1d95;color:#fff}
/* 🧭 toggle buttons show an in-use state */
.ex-toggle-btn.on{background:#4c1d95;border-color:#4c1d95;color:#fff;font-weight:800}
/* BIG mirrored timer inside ⛶ full screen */
.ex-fs-clock{position:fixed;top:14px;right:18px;z-index:9200;background:#0f172a;color:#4ade80;font-family:var(--disp);font-weight:900;font-size:44px;line-height:1;letter-spacing:1px;padding:12px 20px;border-radius:14px;box-shadow:0 8px 24px rgba(0,0,0,.35);font-variant-numeric:tabular-nums;pointer-events:none}
.ex-fs-clock.low{color:#f87171;animation:rmPulse 1s infinite}
@media (max-width:900px){
  .rm-toolbar.sticky{top:118px}
  .ex-fs-clock{font-size:30px;top:10px;right:12px;padding:9px 14px}
}
@media (max-width:640px){
  .ex-tabs{position:static}
  .rm-toolbar.sticky{position:static}
}

/* ═════════ v5.05 · bigger home btn · exam badges · bigger timer · set/part headings · voice rows ═════════ */
.ex-home-btn{font-weight:800;padding:8px 16px;background:#ede9fe;border:1.5px solid #a78bfa;color:#4c1d95;border-radius:12px}
.ex-home-btn:hover{background:#ddd6fe}
.ex-home-lab{margin-left:2px}
@media (max-width:640px){ .ex-home-lab{display:none} }
.ex-exam-badge{font-weight:900;border-radius:99px;padding:5px 14px;font-size:14px;letter-spacing:.3px;white-space:nowrap;color:#fff}
.ex-b-ielts{background:#b91c1c}.ex-b-toefl{background:#1d4ed8}.ex-b-toeic{background:#047857}
/* bigger exam-mock timer */
.ex-exam-timer{font-size:26px !important;font-weight:900 !important;padding:8px 18px !important;font-family:var(--disp);letter-spacing:1px;color:#4ade80 !important}
.ex-exam-timer.low{color:#f87171 !important;animation:rmPulse 1s infinite}
.ex-part-h{margin:14px 0 6px;font-size:15px;font-weight:800;color:#4c1d95;border-left:4px solid #a78bfa;padding-left:9px}
.ex-vrow{display:flex;gap:8px;align-items:center;padding:7px 4px;border-bottom:1px solid #f1f5f9}
.ex-vrow .ex-vbtn{white-space:nowrap}

/* ═════════ v5.06 · TOEIC Part-1 photo illustrations ═════════ */
.ex-photo-wrap{margin:0 0 10px;background:#fff;border:1.5px solid #e2e8f0;border-radius:14px;padding:8px;box-shadow:0 3px 10px rgba(17,24,39,.06)}
.ex-photo{width:100%;height:auto;display:block;border-radius:10px}
/* v5.14 · schematic map/diagram/photo-strip visuals for the Set 2 & 3 listening banks */
.ex-plan,.ex-photostrip,.ex-scene-svg{width:100%;max-width:560px;height:auto;display:block;margin:0 auto 10px;background:#fff;border:1.5px solid #e2e8f0;border-radius:14px;padding:8px;box-shadow:0 3px 10px rgba(17,24,39,.06)}
.ex-scene-svg{max-width:440px}
.ex-sim-modes{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:4px 0 4px}
.ex-sim-modes .ex-set{background:rgba(255,255,255,.15);color:#fff;border-color:rgba(255,255,255,.4)}
.ex-sim-modes .ex-set.on{background:#fff;color:#4c1d95;font-weight:800}
.ex-sim-modes .help{color:rgba(255,255,255,.85)}
/* v5.19 · offline rubric bars */
.ex-rubric-rows{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.ex-rubric-row{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:8px 10px}
.ex-rubric-name{font-size:14px;font-weight:700;color:#0f172a;display:flex;justify-content:space-between;gap:8px}
.ex-rubric-bar{height:8px;background:#e5e7eb;border-radius:99px;overflow:hidden;margin:5px 0}
.ex-rubric-bar span{display:block;height:100%;border-radius:99px}
.ex-rubric-tip{margin:2px 0 0;font-size:12.5px}
/* v5.19 · rubric quick-view drawer */
.ex-rubric-drawer{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:9000;display:flex;justify-content:flex-end}
.ex-rubric-panel{background:#fff;width:min(560px,94vw);height:100%;overflow:auto;padding:16px 18px;box-shadow:-8px 0 30px rgba(0,0,0,.25);animation:exSlideIn .18s ease}
@keyframes exSlideIn{from{transform:translateX(30px);opacity:.5}to{transform:none;opacity:1}}
.ex-rubric-dhead{display:flex;align-items:center;justify-content:space-between;gap:10px;position:sticky;top:-16px;background:#fff;padding:6px 0 8px;border-bottom:1.5px solid var(--line);margin-bottom:8px}
.ex-rubric-dhead b{font-size:16px}
@media(max-width:640px){ .ex-rubric-panel{width:100vw} }
.ex-sim-score{font-size:16px;font-weight:700;color:#0f766e;margin:6px 0 2px}
.ex-fresh-chip{display:inline-block;background:#fff;color:#4c1d95;border-radius:99px;padding:2px 10px;font-size:12px;font-weight:800;vertical-align:middle;margin-left:6px}
/* v5.17 · grid of accurate scene pictures (TOEIC Part 1 = 6 photos) */
.ex-scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:0 0 10px}
.ex-scene-cell{background:#fff;border:1.5px solid #e2e8f0;border-radius:12px;padding:6px;box-shadow:0 2px 8px rgba(17,24,39,.05)}
.ex-scene-cell .ex-scene-cap{font-size:14px;font-weight:800;color:#334155;text-align:center;margin:2px 0 4px}
.ex-scene-cell .ex-scene-svg{margin:0;border:none;box-shadow:none;padding:0;max-width:100%}
@media(min-width:900px){ .ex-scene-grid{grid-template-columns:repeat(3,1fr)} }
@media(max-width:640px){ .ex-plan,.ex-photostrip,.ex-scene-svg{max-width:100%} .ex-scene-grid{grid-template-columns:repeat(2,1fr);gap:8px} }

/* ═════════ v5.07 · 🌐 Universal Vocabulary + synonyms ═════════ */
.ex-uni-fab{position:fixed;right:16px;bottom:78px;z-index:60;display:flex;flex-direction:column;align-items:center;gap:1px;
  background:linear-gradient(135deg,#0f766e,#0e7490);color:#fff;border:none;border-radius:16px;padding:10px 12px;
  box-shadow:0 6px 18px rgba(13,148,136,.42);cursor:pointer;font-weight:800;font-size:20px;line-height:1}
.ex-uni-fab span{font-size:10px;font-weight:700;letter-spacing:.2px}
.ex-uni-fab:hover{transform:translateY(-2px);box-shadow:0 9px 22px rgba(13,148,136,.5)}
.ex-uni-add{background:#f0fdfa;border:1.5px solid #99f6e4;border-radius:14px;padding:12px 14px;margin:8px 0}
.ex-uni-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px;align-items:center}
.ex-uni-grid input{margin:0}
.ex-uni-grid .btn{white-space:nowrap}
.ex-uni-mine{background:#fde68a;color:#78350f;border-radius:8px;padding:0 6px;font-size:11px;font-weight:800}
.ex-flash-syn{margin:6px 0;color:#0f766e;font-size:15px}
@media(max-width:560px){.ex-uni-fab{right:10px;bottom:70px;padding:9px 10px;font-size:18px}.ex-uni-grid{grid-template-columns:1fr}}

/* ═════════ v5.08 · 🌐 Universal Vocabulary builder (categorised, reveal-on-hover/click, responsive) ═════════ */
.ex-sync{font-size:12px;font-weight:700;border-radius:20px;padding:3px 10px;white-space:nowrap}
.ex-sync.on{background:#dcfce7;color:#166534}
.ex-sync.off{background:#fef3c7;color:#92400e}
.ex-catbar{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 12px}
.ex-catchip{border:1.5px solid #cbd5e1;background:#fff;color:#334155;border-radius:20px;padding:5px 12px;font-size:13px;font-weight:700;cursor:pointer}
.ex-catchip:hover{border-color:#0f766e;color:#0f766e}
.ex-catchip.on{background:#0f766e;border-color:#0f766e;color:#fff}
.ex-vsub{margin:14px 0 8px;font-size:15px;color:#0f172a;display:flex;align-items:center;flex-wrap:wrap;gap:4px}
.ex-vgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.ex-vcard{border:1.5px solid #e2e8f0;border-radius:12px;background:#fff;overflow:hidden;transition:box-shadow .15s,border-color .15s}
.ex-vcard:hover{border-color:#99f6e4;box-shadow:0 4px 12px rgba(15,118,110,.1)}
.ex-vcard.mine{border-color:#fcd34d;background:#fffbeb}
.ex-vchip{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:10px 12px;font-size:15px;font-weight:800;color:#0f172a;display:flex;align-items:baseline;gap:6px}
.ex-vchip i{font-size:12px;font-weight:600;color:#94a3b8;font-style:italic}
.ex-vchip::after{content:'▾';margin-left:auto;color:#cbd5e1;font-size:12px;font-weight:700}
.ex-vcard.open .ex-vchip::after{content:'▴';color:#0f766e}
.ex-vdetail{display:none;padding:0 12px 12px;font-size:14px;color:#334155;border-top:1px dashed #e2e8f0}
.ex-vcard.open .ex-vdetail{display:block;animation:exVfade .16s ease}
@keyframes exVfade{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}
.ex-vsyn{color:#0f766e;font-weight:600;margin:6px 0 2px}
.ex-vex{color:#475569;font-style:italic;margin:4px 0}
.ex-vtags{font-size:11px;color:#94a3b8;font-weight:700;margin-top:4px}
@media(max-width:560px){.ex-vgrid{grid-template-columns:1fr}.ex-catchip{padding:5px 10px;font-size:12px}}

/* ═════════ v5.09 · 🌐 Vocabulary Builder — app layout, frozen bars, A–Z index, colours, keys ═════════ */
.ex-vocab-app{display:flex;flex-direction:column;height:calc(100vh - 88px);background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 3px 14px rgba(17,24,39,.06)}
.ex-vocab-app.ex-fs{position:fixed;inset:0;height:100vh;width:100vw;z-index:3000;border:none;border-radius:0}
.ex-vhead{flex:0 0 auto;background:#fff;border-bottom:1.5px solid var(--line);padding:10px 12px 8px;position:sticky;top:0;z-index:5}
.ex-vhead-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:6px}
.ex-vtitle{font-size:17px}
.ex-vsearch{flex:1;min-width:180px;margin:0}
.ex-vfs-btn{margin-left:auto}
.ex-vtabs{margin:2px 0}
.ex-vmain{flex:1 1 auto;display:flex;min-height:0;overflow:hidden}
.ex-vindex{flex:0 0 168px;overflow:auto;border-right:1.5px solid var(--line);padding:8px 6px;background:#fbfcfe}
.ex-azbar{display:flex;flex-wrap:wrap;gap:2px;position:sticky;top:0;background:#fbfcfe;padding-bottom:6px;margin-bottom:4px;border-bottom:1px dashed var(--line)}
.ex-az{width:20px;height:20px;padding:0;font-size:11px;font-weight:800;border:1px solid transparent;background:none;color:#475569;border-radius:5px;cursor:pointer}
.ex-az:hover{background:#e2e8f0}
.ex-az.on{background:#0f766e;color:#fff}
.ex-az.dim{color:#cbd5e1;cursor:default}
.ex-azlist{display:flex;flex-direction:column;gap:1px}
.ex-azitem{text-align:left;background:none;border:none;padding:4px 6px;font-size:13px;font-weight:600;color:#334155;border-radius:6px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ex-azitem:hover{background:#e0f2fe;color:#0369a1}
.ex-vbody{flex:1 1 auto;overflow:auto;padding:10px 12px}
.ex-vactions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:2px 0 10px}
.ex-vmini{padding:2px 8px;font-size:12px}
.ex-vcard.focused{outline:3px solid #0f766e55;outline-offset:1px}
.ex-vchip span{font-weight:800}
.ex-vlink{color:#0369a1;text-decoration:underline;text-decoration-style:dotted;cursor:pointer;font-weight:600}
.ex-vlink.ant{color:#be123c}
.ex-vlink:hover{text-decoration-style:solid}
.ex-vsyn{color:#0f766e;margin:6px 0 2px}
.ex-vant{color:#be123c;margin:2px 0}
.ex-vfs-exit{position:fixed;right:16px;bottom:16px;z-index:3001;background:#0f172a;color:#fff;border:none;border-radius:10px;padding:9px 14px;font-weight:700;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.3)}
/* frozen quick question-number strip + attempted marks */
.ex-qstrip{position:sticky;top:0;z-index:6;background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:6px 8px;margin:6px 0 10px;display:flex;gap:8px;align-items:center;box-shadow:0 2px 8px rgba(17,24,39,.05)}
.ex-qstrip-lab{font-size:12px;color:#475569;font-weight:700;white-space:nowrap}
.ex-qstrip-row{display:flex;gap:4px;flex-wrap:wrap;overflow-x:auto}
.ex-qbtn{min-width:26px;height:26px;padding:0 5px;border:1.5px solid #cbd5e1;background:#fff;color:#334155;border-radius:7px;font-size:12px;font-weight:800;cursor:pointer}
.ex-qbtn:hover{border-color:#6d28d9;color:#6d28d9}
.ex-qbtn.done{background:#dcfce7;border-color:#16a34a;color:#166534}
.ex-flash-hit{animation:exHit 1.2s ease}
@keyframes exHit{0%,100%{box-shadow:none}30%{box-shadow:0 0 0 4px #6d28d955}}
/* freeze a short question at the top in full screen */
.ex-fs .ex-fs-stickq{position:sticky;top:0;z-index:4;background:#eef2ff;border-radius:10px;box-shadow:0 3px 10px rgba(17,24,39,.08)}
@media(max-width:640px){
  .ex-vocab-app{height:calc(100vh - 70px)}
  .ex-vmain{flex-direction:column}
  .ex-vindex{flex:0 0 auto;max-height:112px;border-right:none;border-bottom:1.5px solid var(--line)}
  .ex-azlist{flex-direction:row;flex-wrap:wrap}
  .ex-azitem{padding:3px 7px;border:1px solid var(--line)}
}

/* ═════════ v5.10 · Vocabulary — 🎬 detail screen, compact cards, stress, pronunciation, highlighted subheads ═════════ */
.ex-vright{flex:1 1 auto;display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden}
.ex-vscreen{flex:0 0 auto;max-height:42vh;overflow:auto;background:#0b1220;color:#e5e7eb;padding:12px 16px;border-bottom:3px solid #0f766e}
.ex-vscreen-empty{color:#94a3b8;padding:16px;text-align:center;font-size:14px}
.ex-vscreen-in{display:flex;flex-direction:column;gap:3px}
.ex-vscreen-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.ex-vscreen-word{font-size:30px;font-weight:800;color:#fff;line-height:1.15}
.ex-vscreen-word .ex-stress{color:#5eead4}
.ex-vscreen-word .ex-syldot{color:#475569}
.ex-vscreen-pos{font-size:14px;color:#94a3b8;font-style:italic;font-weight:600}
.ex-vscreen-syl{color:#a5b4fc;font-size:14px;letter-spacing:.5px;margin:2px 0}
.ex-vscreen-def{font-size:17px;color:#f1f5f9;margin:5px 0}
.ex-vscreen-row{margin:2px 0;font-size:14px}
.ex-vscreen .ex-vsyn{color:#5eead4;font-weight:700}
.ex-vscreen .ex-vant{color:#fda4af;font-weight:700}
.ex-vscreen .ex-vlink{color:#93c5fd}
.ex-vscreen .ex-vlink.ant{color:#fda4af}
.ex-vscreen-ex{color:#cbd5e1;font-style:italic;margin:2px 0;font-size:14px}
.ex-vspk-big{background:#0f766e;color:#fff;border:none;font-weight:700}
.ex-vscreen .ex-vtags{color:#94a3b8;font-size:12px;font-weight:700;margin-top:3px}
.ex-vscreen .ex-vmini{align-self:flex-start;margin-top:6px;background:#1e293b;color:#e5e7eb;border-color:#334155}
/* compact non-expanding cards */
.ex-vcard{display:flex;align-items:center;gap:6px;padding:9px 10px;cursor:pointer;overflow:visible}
.ex-vword{flex:1;font-weight:800;color:#0f172a;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ex-vword i{font-size:11px;color:#94a3b8;font-weight:600;font-style:italic}
.ex-vword .ex-stress{color:#0f766e}
.ex-syldot{color:#cbd5e1;margin:0 1px}
.ex-vspk{background:none;border:none;cursor:pointer;font-size:15px;opacity:.55;padding:2px 4px;border-radius:6px}
.ex-vspk:hover{opacity:1;background:#e2e8f0}
.ex-vcard:hover{background:#f8fafc}
.ex-vcard.sel{outline:3px solid #6d28d9;outline-offset:-1px;background:#faf5ff}
.ex-vgrid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
/* highlighted sub-headings */
.ex-vsub{display:flex;align-items:center;gap:8px;margin:14px 0 8px;padding:6px 10px;border-left:5px solid var(--sc,#475569);background:#f1f5f9;border-radius:8px;font-size:15px;color:#0f172a;font-weight:800}
.ex-vsub-n{background:var(--sc,#475569);color:#fff;border-radius:20px;padding:1px 9px;font-size:12px;font-weight:800}
/* pronounce toggle */
.ex-vsay{font-weight:700}
.ex-vsay.on{background:#0f766e;color:#fff;border-color:#0f766e}
@media(max-width:760px){
  .ex-vscreen{max-height:46vh}
  .ex-vscreen-word{font-size:24px}
}

/* ═════════ v5.11 · responsive login + tidy version note ═════════ */
#uiVer{display:block;max-height:120px;overflow:auto;line-height:1.5}
@media(max-width:640px){
  .auth-wrap{padding:12px;align-items:flex-start}
  .auth-card{padding:20px}
  .brand-lg{font-size:26px}
  #uiVer{max-height:80px}
}

/* ═════════ v5.11 · quick-access bar · study plan · two-definition labels ═════════ */
.ex-quickbar{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin:10px 0}
.ex-quick{display:flex;flex-direction:column;align-items:flex-start;gap:2px;background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:12px 14px;cursor:pointer;text-align:left}
.ex-quick:hover{border-color:#6d28d9;box-shadow:0 4px 12px rgba(109,40,217,.12)}
.ex-quick-ico{font-size:24px}
.ex-quick b{font-size:15px}
.ex-vscreen-full{color:#e2e8f0;font-size:15px;margin:2px 0}
.ex-vlabel{color:#5eead4;font-weight:800;font-size:12px;letter-spacing:.3px}
.ex-vscreen-full .ex-vlabel{color:#fcd34d}
.ex-vcard.reveal-pulse{animation:exReveal .6s ease}
@keyframes exReveal{0%,100%{box-shadow:none}40%{box-shadow:0 0 0 4px #0f766e66}}
.ex-plan-count{background:linear-gradient(120deg,#312e81,#6d28d9);color:#fff;border-radius:12px;padding:10px 14px;font-size:15px;margin:8px 0}
.ex-plan-form{display:flex;flex-direction:column;gap:14px;max-width:640px}
.ex-plan-field label{display:block;margin-bottom:6px}
.ex-plan-days,.ex-plan-exs{display:flex;gap:8px;flex-wrap:wrap}
.ex-plan-day{display:inline-flex;align-items:center;gap:5px;border:1.5px solid var(--line);border-radius:20px;padding:5px 12px;cursor:pointer;font-weight:600}
.ex-plan-day input{margin:0}
.ex-plan-prio-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px}
.ex-plan-prio-row{display:flex;align-items:center;justify-content:space-between;gap:8px;border:1px solid var(--line);border-radius:10px;padding:6px 10px}
.ex-plan-prio-row select{max-width:110px;margin:0}
.ex-plan-steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.ex-plan-step{border:1.5px solid var(--line);border-left:5px solid #7c3aed;border-radius:12px;padding:10px 12px}
.ex-plan-step-h{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.ex-plan-n{background:#7c3aed;color:#fff;width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
.ex-plan-mins{background:#ede9fe;color:#5b21b6;border-radius:20px;padding:1px 9px;font-size:12px;font-weight:700}
.ex-plan-prio{font-size:11px;font-weight:800;border-radius:20px;padding:1px 9px;text-transform:uppercase}
.ex-plan-prio.p-high{background:#fee2e2;color:#991b1b}
.ex-plan-prio.p-medium{background:#fef9c3;color:#854d0e}
.ex-plan-prio.p-low{background:#dcfce7;color:#166534}

/* v5.11 · admin access-window line */
.ex-win-line{margin-top:4px;font-size:12px;color:#334155}

/* ═════════ v5.12 · in-progress highlight · full-section simulation ═════════ */
.ex-mock-card{position:relative}
.ex-mock-card.cur{border-color:#6d28d9;box-shadow:0 0 0 2px #6d28d955;background:#faf5ff}
.ex-mock-card.done{border-color:#86efac}
.ex-mc-badge{display:inline-block;font-size:10.5px;font-weight:800;border-radius:20px;padding:1px 8px;margin-bottom:4px}
.ex-mc-badge.cur{background:#6d28d9;color:#fff}
.ex-mc-badge.done{background:#dcfce7;color:#166534}
.ex-part-h.cur{background:#f5f3ff;border-radius:8px;padding:4px 8px}
.ex-part-cur{background:#6d28d9;color:#fff;border-radius:20px;padding:1px 9px;font-size:11px;font-weight:800;margin-left:6px}
/* full-section simulation */
.ex-sim-hero{background:linear-gradient(120deg,#312e81,#6d28d9 60%,#0f766e);color:#fff;border-radius:16px;padding:16px 18px;margin:6px 0 12px}
.ex-sim-hero h3{color:#fff;margin:0 0 6px}
.ex-sim-steps{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.ex-sim-chip{background:rgba(255,255,255,.15);border-radius:20px;padding:4px 12px;font-size:13px;font-weight:700}
.ex-sim-bar{position:sticky;top:0;z-index:8;background:#0b1220;color:#fff;border-radius:0 0 12px 12px;padding:8px 14px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.ex-sim-bar .ex-sim-timer{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;color:#5eead4}
.ex-sim-bar .ex-sim-timer.low{color:#fca5a5}
.ex-sim-prog{display:flex;gap:4px}
.ex-sim-dot{width:22px;height:8px;border-radius:6px;background:#334155}
.ex-sim-dot.on{background:#5eead4}
.ex-sim-dot.cur{background:#a78bfa}
.ex-sim-inter{max-width:640px;margin:10vh auto;text-align:center;background:#fff;border:1.5px solid var(--line);border-radius:16px;padding:26px;box-shadow:0 10px 30px rgba(17,24,39,.12)}
.ex-sim-inter .big{font-size:40px}

/* ═════════ v5.13 · two-column detail screen · bigger/real full screen · flashcard keys ═════════ */
.ex-vscreen-top{align-items:baseline}
.ex-vscreen-left{min-width:0}
.ex-vfs-btn{font-size:15px;font-weight:800;padding:9px 16px}
/* real browser full screen (requestFullscreen makes the app the :fullscreen element) */
.ex-vocab-app:fullscreen{height:100vh;width:100vw;border-radius:0;background:#fff}
.ex-vocab-app:-webkit-full-screen{height:100vh;width:100vw;border-radius:0;background:#fff}
.ex-flash-keys{font-size:12px;color:#6b7280;margin-top:6px;text-align:center}

/* ═════════ v5.14 · ultra-compact detail screen (no labels · one-line meaning · syn/ant on one row) ═════════ */
.ex-vscreen{max-height:17vh;padding:8px 16px}
.ex-vscreen-in{gap:2px}
.ex-vscreen-top{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.ex-vscreen-word{font-size:24px;font-weight:800;line-height:1.1}
.ex-vscreen-mean{flex:1 1 100%;font-size:14.5px;color:#f1f5f9;line-height:1.45;margin-top:2px}
.ex-vscreen-mean .ex-iow{color:#fcd34d;font-weight:700}
.ex-vscreen-cols{display:grid;grid-template-columns:1.35fr 1fr;gap:14px;margin-top:4px}
.ex-vscreen-right{min-width:0;border-left:1px solid #1e293b;padding-left:14px}
.ex-vscreen-row{margin:2px 0;font-size:13.5px}
.ex-vscreen .ex-vsep{color:#475569;margin:0 8px}
.ex-vscreen .ex-vmini{margin-top:5px;padding:4px 10px;font-size:12px}
.ex-vocab-app.ex-fs .ex-vscreen{max-height:24vh}
/* v5.14 · make the Notepad button unmissable in the mock top bar */
.ex-notepad-btn{width:auto!important;font-size:14px!important;font-weight:800!important;padding:6px 14px!important;background:#fef3c7!important;color:#92400e!important;border:1.5px solid #f59e0b!important;border-radius:9px!important;white-space:nowrap;box-shadow:0 1px 3px rgba(245,158,11,.3)}
.ex-notepad-btn:hover{background:#fde68a!important}
@media(max-width:760px){
  .ex-vscreen{max-height:30vh}
  .ex-vscreen-word{font-size:21px}
  .ex-vscreen-cols{grid-template-columns:1fr;gap:6px}
  .ex-vscreen-right{border-left:none;border-top:1px dashed #1e293b;padding-left:0;padding-top:6px}
}