/* =====================================================================
   GYAANIX AI · TEACHER MODULE — design system
   Fonts: Bricolage Grotesque (display) · Public Sans (body)
   Light: warm paper + deep teal + gold + coral
   ===================================================================== */

:root{
  --paper:#f4f4ec; --paper-2:#fdfcf7; --ink:#152825; --ink-soft:#41544f; --muted:#7a8a84;
  --line:#dfe0d2; --line-soft:#eaeade;
  --teal:#0e6e5c; --teal-deep:#0a4b3f; --teal-soft:#e3efea;
  --gold:#f0a11c; --gold-soft:#fdf1d8; --gold-line:#efd49a;
  --coral:#d8503f; --coral-soft:#fbe7e3;
  --ok:#1e9e5a; --ok-soft:#e2f3e8;
  --radius:16px;
  --shadow:0 10px 28px rgba(21,40,37,.07),0 2px 6px rgba(21,40,37,.05);
  --shadow-lift:0 18px 40px rgba(21,40,37,.13),0 4px 10px rgba(21,40,37,.06);
  --disp:"Bricolage Grotesque",Georgia,serif;
  --body:"Public Sans","Segoe UI",system-ui,sans-serif;
  --dot:rgba(14,110,92,.10);
  --maxw:1380px;
}

[data-theme="dark"]{
  --paper:#0d1b18; --paper-2:#132622; --ink:#e9f2ec; --ink-soft:#b7c9c1; --muted:#8ba79c;
  --line:#26413b; --line-soft:#1d332e;
  --teal:#2fbfa0; --teal-deep:#0a4b3f; --teal-soft:#123a31;
  --gold:#f4b23e; --gold-soft:#3a2e12; --gold-line:#5c4718;
  --coral:#ef6a56; --coral-soft:#3a1d18;
  --ok:#3ecf7c; --ok-soft:#14331f;
  --shadow:0 10px 28px rgba(0,0,0,.45),0 2px 6px rgba(0,0,0,.3);
  --shadow-lift:0 18px 40px rgba(0,0,0,.55),0 4px 10px rgba(0,0,0,.35);
  --dot:rgba(47,191,160,.12);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--paper);min-height:100vh;font-size:15px;line-height:1.55}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:radial-gradient(var(--dot) 1px,transparent 1px);background-size:22px 22px}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(700px 420px at 8% -5%,rgba(14,110,92,.10),transparent 60%),
  radial-gradient(640px 420px at 100% 105%,rgba(240,161,28,.13),transparent 60%),
  radial-gradient(420px 300px at 85% 0%,rgba(216,80,63,.05),transparent 60%)}
[data-theme="dark"] body::after{background:
  radial-gradient(700px 420px at 8% -5%,rgba(47,191,160,.10),transparent 60%),
  radial-gradient(640px 420px at 100% 105%,rgba(244,178,62,.08),transparent 60%)}
::selection{background:var(--gold-soft);color:var(--ink)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--ink)}
:focus-visible{outline:2.5px solid var(--gold);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px;border:2px solid transparent;background-clip:content-box}
svg.ic{width:18px;height:18px;flex:none}
.hidden{display:none!important}
.spacer{flex:1}
a{color:var(--teal)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--teal);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:500}
.skip-link:focus{left:0}

/* ---------------------------------------------------------------- topbar */
.topbar{position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:12px;
  padding:calc(11px + env(safe-area-inset-top)) 26px 11px;
  background:color-mix(in srgb,var(--paper-2) 93%,transparent);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px}
.brand .word{font-family:var(--disp);font-weight:800;font-size:22px;letter-spacing:-.02em;line-height:1}
.brand .word em{font-style:normal;color:var(--teal)}
.brand .word small{display:block;font-family:var(--body);font-weight:700;font-size:9px;letter-spacing:.32em;color:var(--muted);text-transform:uppercase;margin-top:2px}
.model-chip{font-size:11px;font-weight:800;letter-spacing:.04em;background:var(--teal-soft);color:var(--teal-deep);border-radius:99px;padding:5px 12px;display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
[data-theme="dark"] .model-chip{color:var(--ink)}
.model-chip .live{width:7px;height:7px;border-radius:99px;background:var(--ok);animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.3}}
.icon-btn{width:38px;height:38px;border-radius:99px;border:1px solid var(--line);background:var(--paper-2);color:var(--ink-soft);display:grid;place-items:center;font-weight:800;font-size:15px;transition:.18s}
.icon-btn:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.avatar{display:flex;align-items:center;gap:9px;padding:4px 12px 4px 4px;border:1px solid var(--line);border-radius:99px;background:var(--paper-2)}
.avatar .dot{width:32px;height:32px;border-radius:99px;background:var(--gold);display:grid;place-items:center;font-weight:800;color:#5d3d02;font-size:13px}
.avatar .nm{font-size:12px;line-height:1.25;min-width:0}
.avatar .nm b{display:block;font-size:13px;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.avatar .nm span{color:var(--muted);display:block;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.logout-btn{padding:8px 14px}
.install-btn{padding:8px 14px}
.about-btn{padding:8px 13px;gap:7px}
.about-label{font-size:13px;font-weight:700}

/* ------------------------------------------------------- shell + sidenav */
.shell{display:grid;grid-template-columns:232px 1fr;gap:22px;max-width:var(--maxw);margin:0 auto;
  padding:22px 26px calc(70px + env(safe-area-inset-bottom))}
.sidenav{position:sticky;top:80px;align-self:start;display:flex;flex-direction:column;gap:6px}
.sidenav .nv{display:flex;align-items:center;gap:11px;width:100%;text-align:left;padding:11px 14px;border-radius:12px;
  border:1px solid transparent;background:transparent;color:var(--ink-soft);font-weight:600;font-size:14px;transition:.18s}
.sidenav .nv:hover{background:var(--paper-2);border-color:var(--line);transform:translateX(3px)}
.sidenav .nv.on{background:var(--teal);color:#fdfcf7;box-shadow:0 8px 18px rgba(14,110,92,.3)}
.sidenav .nv .bdg{margin-left:auto;background:var(--coral);color:#fff;font-size:10.5px;font-weight:800;padding:2px 7px;border-radius:99px}
.sidenav .side-note{margin-top:14px;padding:14px;border-radius:14px;font-size:12.5px;color:var(--ink-soft);background:var(--gold-soft);border:1px dashed var(--gold-line);line-height:1.5}
.sidenav .side-note b{color:color-mix(in srgb,var(--gold) 45%,var(--ink))}

/* ------------------------------------------------------------- views/cards */
.view{display:none}
.view.active{display:block;animation:viewIn .32s ease both}
@keyframes viewIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.page-head{margin-bottom:18px}
.page-head h1{font-family:var(--disp);font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.02em}
.page-head .meta{font-size:13px;color:var(--muted);margin-top:5px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.page-head .meta span{display:inline-flex;align-items:center;gap:6px}
.class-filter{display:inline-flex;align-items:center;gap:8px;background:var(--paper-2);border:1px solid var(--line);
  border-radius:99px;padding:4px 6px 4px 12px;transition:.18s}
.class-filter:hover{border-color:var(--teal)}
.class-filter svg{color:var(--teal)}
.class-filter select{border:0;background:transparent;font-weight:700;font-size:13.5px;color:var(--ink);max-width:200px;padding:4px 2px}
.class-filter select:focus{outline:none}
.card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.card.hov{transition:transform .22s,box-shadow .22s}
.card.hov:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.card-teal{background:linear-gradient(150deg,var(--teal-deep),var(--teal));color:#eaf3ee;border:0}
.card-teal h2{color:#fff}
.card-teal-note{font-size:12px;opacity:.78;margin-top:16px}
.eyebrow{font-size:10.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);display:flex;align-items:center;gap:6px;margin-bottom:6px}
.eyebrow::before{content:"";width:16px;height:3px;border-radius:99px;background:var(--gold)}
.card h2{font-family:var(--disp);font-size:19px;font-weight:700;letter-spacing:-.01em}
.card .sub{font-size:13px;color:var(--muted);margin-top:2px}
.opt-note{font-weight:500;color:var(--muted)}
.hint{font-size:12px;color:var(--muted);line-height:1.5}
.linkish{border:0;background:none;color:inherit;font:inherit;font-weight:800;text-decoration:underline;cursor:pointer;padding:0}

/* ---------------------------------------------------------------- buttons */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:11px;border:1px solid transparent;padding:10px 17px;
  font-weight:700;font-size:13.5px;transition:.18s;background:color-mix(in srgb,var(--line) 55%,var(--paper-2));color:var(--ink)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--teal);color:#fff;box-shadow:0 8px 18px rgba(14,110,92,.28)}
.btn.primary:hover{background:var(--teal-deep)}
.btn.gold{background:var(--gold);color:#4d3302;box-shadow:0 8px 18px rgba(240,161,28,.32)}
.btn.gold:hover{background:color-mix(in srgb,var(--gold) 85%,#000)}
.btn.outline{background:transparent;border-color:var(--line)}
.btn.outline:hover{border-color:var(--teal);color:var(--teal)}
.btn.ghost{background:transparent;color:var(--ink-soft)}
.btn.ghost:hover{background:color-mix(in srgb,var(--line) 45%,var(--paper-2))}
.btn.danger{background:var(--coral-soft);color:var(--coral)}
.btn.big{padding:13px 22px;font-size:14.5px;border-radius:13px}
.btn.tiny{padding:5px 10px;font-size:11.5px;border-radius:9px}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* --------------------------------------------------------- dashboard task */
.task-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.task{position:relative;display:flex;flex-direction:column;gap:9px;text-align:left;padding:18px 17px;border-radius:15px;
  border:1px solid var(--line);background:var(--paper-2);transition:.2s;overflow:hidden}
.task::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--acc,var(--teal));opacity:.9}
.task:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:transparent}
.task .ic-wrap{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:#fff;background:var(--acc,var(--teal))}
.task b{font-size:15px}
.task p{font-size:12.5px;color:var(--muted);line-height:1.45;flex:1}
.task .go{font-size:12.5px;font-weight:800;color:var(--acc,var(--teal));display:flex;align-items:center;gap:6px}
.task .count{position:absolute;top:12px;right:12px;background:var(--coral);color:#fff;font-size:11px;font-weight:800;padding:2px 8px;border-radius:99px}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip-stat{background:var(--paper-2);border:1px solid var(--line);border-radius:13px;padding:9px 14px;display:flex;flex-direction:column;min-width:120px;transition:.2s}
.chip-stat:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.chip-stat b{font-family:var(--disp);font-size:19px;font-weight:800}
.chip-stat span{font-size:11.5px;color:var(--muted)}
.chip-stat .up{color:var(--ok);font-size:11px;font-weight:700}
.chip-stat .dn{color:var(--coral);font-size:11px;font-weight:700}
.dash-cols{display:grid;grid-template-columns:1.5fr 1fr;gap:18px;align-items:start}
.dash-col{display:flex;flex-direction:column;gap:18px}
.stack{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.steps-3{display:flex;flex-direction:column;gap:12px;margin-top:14px;font-size:13.5px}
.steps-3>div{display:flex;gap:11px;align-items:center}
.steps-3 b{background:var(--gold);color:#4d3302;width:26px;height:26px;border-radius:99px;display:grid;place-items:center;flex:none}
.list-item{display:flex;gap:12px;align-items:center;padding:11px 8px;border-radius:12px;transition:.18s;border-left:4px solid var(--acc,var(--teal));cursor:pointer;text-align:left;background:transparent;width:100%;border-top:0;border-right:0;border-bottom:0}
.list-item:hover{background:color-mix(in srgb,var(--line) 35%,var(--paper-2))}
.list-item .bd{flex:1;min-width:0}
.list-item .bd b{font-size:13.5px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.list-item .bd p{font-size:12.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.list-item .tagx{flex:none;font-size:10.5px;font-weight:800;padding:3px 9px;border-radius:99px}
.list-item .acts{display:flex;gap:6px;flex:none;flex-wrap:wrap}

/* ----------------------------------------------------------------- forms */
.fld{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.fld label{font-size:12.5px;font-weight:700;color:var(--ink-soft)}
.fld input,.fld select,.fld textarea{border:1px solid var(--line);border-radius:11px;padding:10px 12px;background:var(--paper-2);transition:.15s;width:100%}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,110,92,.12);outline:none}
.fld textarea{min-height:92px;resize:vertical;line-height:1.6}
.subject-custom{margin-top:6px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.chipset{display:flex;gap:8px;flex-wrap:wrap}
.chipset .ch{border:1px solid var(--line);background:var(--paper-2);border-radius:99px;padding:6px 13px;font-size:12.5px;font-weight:600;color:var(--ink-soft);transition:.15s}
.chipset .ch:hover{border-color:var(--teal)}
.chipset .ch.on{background:var(--teal);border-color:var(--teal);color:#fff}
.stepper{display:flex;align-items:center;border:1px solid var(--line);border-radius:11px;overflow:hidden;background:var(--paper-2);width:max-content}
.stepper button{width:32px;height:36px;border:0;background:color-mix(in srgb,var(--line) 40%,var(--paper-2));font-size:16px;font-weight:800;color:var(--ink-soft);transition:.15s}
.stepper button:hover{background:var(--teal-soft);color:var(--teal)}
.stepper b{min-width:36px;text-align:center;font-size:13.5px}
.qtype-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.qtype-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;border:1px dashed var(--line);border-radius:12px;padding:8px 10px}
.qtype-label{font-size:12.5px;font-weight:700;color:var(--ink-soft);flex:1;min-width:88px}
.marks-inp{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--muted);font-weight:700}
.marks-inp input{width:46px;padding:6px 6px;border:1px solid var(--line);border-radius:8px;background:var(--paper-2);text-align:center;font-size:12.5px}
.tgl-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.tgl-row{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--ink-soft);padding:6px 0;cursor:pointer}
.tgl{position:relative;width:40px;height:22px;flex:none;display:inline-block}
.tgl input{opacity:0;position:absolute;inset:0;cursor:pointer;z-index:2}
.tgl i{position:absolute;inset:0;background:var(--line);border-radius:99px;transition:.2s}
.tgl i::after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:99px;background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.tgl input:checked+i{background:var(--teal)}
.tgl input:checked+i::after{left:21px}
.inline-check{display:inline-flex;gap:6px;align-items:center;cursor:pointer}
.inline-check input{accent-color:var(--teal)}

/* ----------------------------------------------------------- AI bubbles */
.ai-card-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.ai-bubble-wrap{height:480px;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;contain:layout paint style;
  border:1px solid var(--line);border-radius:14px;background:var(--paper-2);padding:18px 20px;min-height:0}
.ai-bubble-wrap.streaming{white-space:pre-wrap;font-size:14px;line-height:1.7}
.ai-bubble-wrap.streaming::after{content:"";display:inline-block;width:9px;height:17px;background:var(--gold);vertical-align:-3px;margin-left:3px;animation:blink .8s infinite}
.md h3,.ai-bubble-wrap h3{font-family:var(--disp);font-size:17px;margin:18px 0 6px}
.md h3:first-child,.ai-bubble-wrap h3:first-child{margin-top:0}
.md h4,.ai-bubble-wrap h4{font-size:14px;margin:14px 0 4px;color:var(--teal-deep)}
[data-theme="dark"] .md h4,[data-theme="dark"] .ai-bubble-wrap h4{color:var(--gold)}
.md p,.ai-bubble-wrap p{margin:6px 0}
.md ul,.md ol,.ai-bubble-wrap ul,.ai-bubble-wrap ol{margin:6px 0 8px 22px}
.md li,.ai-bubble-wrap li{margin:3px 0}
.md b,.ai-bubble-wrap b{color:var(--teal-deep)}
[data-theme="dark"] .md b,[data-theme="dark"] .ai-bubble-wrap b{color:var(--gold)}
.md .md-hr,.ai-bubble-wrap .md-hr{border:0;border-top:2px dashed var(--line);margin:14px 0}
.md code,.ai-bubble-wrap code{background:color-mix(in srgb,var(--line) 45%,var(--paper-2));padding:1px 6px;border-radius:6px;font-size:12.5px;overflow-wrap:anywhere}
.md pre,.ai-bubble-wrap pre{background:#10201d;color:#e6f2ec;padding:12px 14px;border-radius:11px;overflow-x:auto;margin:8px 0;font-size:12.5px;line-height:1.5}
.md pre code,.ai-bubble-wrap pre code{background:none;color:inherit;padding:0}
.md blockquote,.ai-bubble-wrap blockquote{border-left:3px solid var(--gold);padding-left:12px;color:var(--muted);margin:8px 0}
.md table,.ai-bubble-wrap table{border-collapse:collapse;margin:10px 0;font-size:12.5px;display:block;overflow-x:auto;max-width:100%}
.md th,.md td,.ai-bubble-wrap th,.ai-bubble-wrap td{border:1px solid var(--line);padding:6px 10px;text-align:left}
.md a,.ai-bubble-wrap a{color:var(--teal);text-decoration:underline;overflow-wrap:anywhere}
.empty-bubble{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--muted);text-align:center;padding:20px}
.empty-bubble svg{width:44px;height:44px;color:var(--line)}
.empty-bubble b{color:var(--ink-soft);font-size:15px}
.katex{font-size:1.02em}
.katex-display{overflow-x:auto;overflow-y:hidden;padding:2px 0}

/* --------------------------------------------------- generation checklist */
.gen-steps{list-style:none;display:flex;flex-direction:column;gap:11px;padding:14px 4px}
.gen-steps li{display:flex;align-items:center;gap:11px;font-size:14px;color:var(--muted);opacity:.45;transition:.3s}
.gen-steps li .bub{width:22px;height:22px;border-radius:99px;border:2px solid var(--line);display:grid;place-items:center;flex:none}
.gen-steps li .bub svg{width:12px;height:12px;opacity:0}
.gen-steps li.doing{opacity:1;color:var(--ink)}
.gen-steps li.doing .bub{border-color:var(--gold);animation:spinDot 1s linear infinite}
.gen-steps li.done{opacity:1;color:var(--ink)}
.gen-steps li.done .bub{background:var(--ok);border-color:var(--ok)}
.gen-steps li.done .bub svg{opacity:1;color:#fff;animation:pop .3s ease}
@keyframes pop{from{transform:scale(0)}}
@keyframes spinDot{to{transform:rotate(360deg)}}

/* ------------------------------------------------------------- q-cards */
.qz-meta{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:14px}
.qz-meta .m{font-size:12px;font-weight:700;background:color-mix(in srgb,var(--line) 45%,var(--paper-2));border-radius:99px;padding:5px 12px;color:var(--ink-soft)}
.qz-meta .m b{color:var(--teal-deep)}
[data-theme="dark"] .qz-meta .m b{color:var(--gold)}
.scroll-list{max-height:430px;overflow-y:auto;padding-right:4px;min-height:0}
.qcard{border:1px solid var(--line);border-radius:13px;background:var(--paper-2);padding:14px 16px;margin-bottom:10px;animation:rise .4s ease both;transition:.18s}
.qcard:hover{border-color:color-mix(in srgb,var(--teal) 40%,var(--line));box-shadow:var(--shadow)}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.qcard .top{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap}
.qtype{font-size:10px;font-weight:800;letter-spacing:.08em;padding:3px 9px;border-radius:99px;text-transform:uppercase}
.qtype.mcq{background:var(--teal-soft);color:var(--teal-deep)}
[data-theme="dark"] .qtype.mcq{color:var(--ink)}
.qtype.tf{background:var(--gold-soft);color:#8a5c06}
.qtype.fill,.qtype.one{background:#e9e9f6;color:#4c4c8a}
[data-theme="dark"] .qtype.fill,[data-theme="dark"] .qtype.one{background:#23233f;color:#b9b9e6}
.qtype.short{background:#efe7f4;color:#71478f}
[data-theme="dark"] .qtype.short{background:#2c2136;color:#d2b6e6}
.qtype.long{background:#e7eef7;color:#33567e}
[data-theme="dark"] .qtype.long{background:#1c2a3a;color:#a8c6e8}
.qtype.case{background:var(--coral-soft);color:var(--coral)}
.diff{font-size:10.5px;font-weight:700;color:var(--muted);display:flex;align-items:center;gap:5px}
.diff i{width:8px;height:8px;border-radius:99px;display:inline-block}
.qcard .txt{font-weight:600;font-size:14px;overflow-wrap:anywhere}
.qcard .opts{font-size:12.5px;color:var(--ink-soft);margin-top:5px;overflow-wrap:anywhere}
.qcard .exp{font-size:12px;color:var(--muted);font-style:italic;margin-top:5px}
.qcard .rm{margin-left:auto;border:0;background:transparent;color:var(--muted);font-size:17px;line-height:1;transition:.15s}
.qcard .rm:hover{color:var(--coral);transform:scale(1.2)}
.qcard label.selchk{display:flex;gap:8px;align-items:center;font-size:12px;font-weight:700;color:var(--muted);cursor:pointer}
.qcard label.selchk input{accent-color:var(--teal)}
.history-block{margin-top:18px;border-top:2px dashed var(--line);padding-top:16px}
.history-title{font-size:16px}
.history-block .list-item{margin-bottom:4px}

/* --------------------------------------------------------------- media */
.media-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}
.media-card{border:1px solid var(--line);border-radius:13px;padding:13px 15px;background:var(--paper-2);display:flex;flex-direction:column;gap:6px;transition:.18s}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.media-card .mh{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--teal)}
.media-card .mh.video{color:var(--coral)}
.media-card b{font-size:14px}
.media-card p{font-size:12.5px;color:var(--muted);flex:1}
.media-card iframe{width:100%;aspect-ratio:16/10;border:0;border-radius:10px;background:#000}

/* ----------------------------------------------------------- translator */
.tr-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:14px}
.tr-pane{display:flex;flex-direction:column}
.tr-pane .lbl{font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.tr-pane textarea{width:100%;min-height:190px;resize:vertical;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--paper-2);line-height:1.6}
.tr-select{padding:9px 12px;border-radius:10px;border:1px solid var(--line);background:var(--paper-2);margin-bottom:8px;width:100%}
.tr-out{min-height:190px;border:1px dashed var(--line);border-radius:12px;padding:12px 14px;background:color-mix(in srgb,var(--paper-2) 70%,var(--paper));white-space:pre-wrap;line-height:1.6;font-size:14.5px;overflow-wrap:anywhere}
.tr-out:empty::before{content:"Translation appears here…";color:var(--muted)}
.tr-out.busy{opacity:.75}

/* ------------------------------------------------------------- progress */
.progress-cols{display:grid;grid-template-columns:1.15fr 1fr;gap:18px;align-items:start}
.progress-col{display:flex;flex-direction:column;gap:18px}
.hbar-row{display:grid;grid-template-columns:130px 1fr 52px;gap:10px;align-items:center;margin:9px 0;font-size:13px}
.hbar-row .tr{height:12px;border-radius:99px;background:color-mix(in srgb,var(--line) 50%,var(--paper-2));overflow:hidden}
.hbar-row .tr i{display:block;height:100%;border-radius:99px;width:0;transition:width 1s cubic-bezier(.2,.8,.2,1)}
.hbar-row b{text-align:right}
table.simple{width:100%;border-collapse:collapse;font-size:13.5px;margin-top:10px}
table.simple th{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);text-align:left;padding:8px 10px;border-bottom:2px solid var(--line);white-space:nowrap}
table.simple td{padding:9px 10px;border-bottom:1px solid var(--line-soft)}
table.simple tbody tr{transition:.15s}
table.simple tbody tr.clickable:hover td{background:color-mix(in srgb,var(--line) 30%,var(--paper-2));cursor:pointer}
.table-scroll{overflow-x:auto;max-width:100%}
.trend-up{color:var(--ok);font-weight:700}
.trend-dn{color:var(--coral);font-weight:700}
.trend-fl{color:var(--muted);font-weight:700}
.status{font-size:10.5px;font-weight:800;padding:3px 9px;border-radius:99px;letter-spacing:.04em;white-space:nowrap}
.status.crit{background:var(--coral-soft);color:var(--coral)}
.status.watch{background:var(--gold-soft);color:#8a5c06}
.status.ok2{background:var(--ok-soft);color:var(--ok)}
.ingest-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:14px}
.drop-zone{border:2px dashed var(--line);border-radius:14px;padding:26px 18px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;transition:.18s;background:color-mix(in srgb,var(--paper-2) 65%,var(--paper))}
.drop-zone.drag{border-color:var(--teal);background:var(--teal-soft)}
.drop-zone svg{width:30px;height:30px;color:var(--teal)}
.drop-zone b{font-size:14px}
.drop-zone label{cursor:pointer}

/* -------------------------------------------------------------- remedial */
.stu-card{border:1px solid var(--line);background:var(--paper-2);border-radius:14px;padding:15px 16px;margin-bottom:11px;cursor:pointer;transition:.2s;position:relative}
.stu-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.stu-card.sel{border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,110,92,.14)}
.stu-card.sel::after{content:"SELECTED";position:absolute;top:12px;right:12px;font-size:9px;font-weight:800;letter-spacing:.12em;background:var(--teal);color:#fff;padding:3px 8px;border-radius:99px}
.stu-card .nm-row{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap}
.stu-card .nm-row b{font-size:15px}
.stu-card .pct{font-family:var(--disp);font-weight:800;font-size:17px}
.stu-card .det{font-size:12.5px;color:var(--muted);margin-top:5px;line-height:1.55}
.stu-card .det b{color:var(--ink-soft)}
.mini-tabs{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}
.mini-tabs button{border:1px solid var(--line);background:var(--paper-2);border-radius:99px;padding:7px 15px;font-size:12.5px;font-weight:700;color:var(--ink-soft);transition:.15s}
.mini-tabs button.on{background:var(--teal);border-color:var(--teal);color:#fff}

/* ----------------------------------------------------------------- chat */
.chat-box{height:340px;overflow-y:auto;overscroll-behavior:contain;contain:layout paint style;border:1px solid var(--line);
  border-radius:14px;background:var(--paper-2);padding:14px;display:flex;flex-direction:column;gap:10px;min-height:0}
.chat-box-tall{height:min(52vh,520px)}
.msg{max-width:84%;padding:10px 14px;border-radius:14px;font-size:13.5px;line-height:1.55;animation:rise .3s ease both;overflow-wrap:anywhere}
.msg.user{align-self:flex-end;background:var(--teal);color:#fff;border-bottom-right-radius:4px}
.msg.ai{align-self:flex-start;background:color-mix(in srgb,var(--line) 32%,var(--paper-2));border-bottom-left-radius:4px}
.msg.ai h3{font-family:var(--disp);font-size:15px;margin:10px 0 4px}
.msg.ai h3:first-child{margin-top:0}
.msg.ai ul,.msg.ai ol{margin:4px 0 6px 20px}
.msg.ai pre{background:#10201d;color:#e6f2ec;padding:10px 12px;border-radius:10px;overflow-x:auto;font-size:12px}
.msg.ai code{background:color-mix(in srgb,var(--line) 45%,var(--paper-2));padding:1px 5px;border-radius:5px}
.msg.ai pre code{background:none;padding:0}
.msg.ai table{border-collapse:collapse;font-size:12px;display:block;overflow-x:auto;max-width:100%}
.msg.ai th,.msg.ai td{border:1px solid var(--line);padding:5px 8px}
.msg.ai.streaming::after{content:"";display:inline-block;width:8px;height:15px;background:var(--gold);vertical-align:-2px;margin-left:3px;animation:blink .8s infinite}
.chat-sug{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.chat-sug button{font-size:12px;border:1px dashed var(--line);background:transparent;border-radius:99px;padding:5px 12px;color:var(--ink-soft);transition:.15s}
.chat-sug button:hover{border-color:var(--gold);background:var(--gold-soft)}
.chat-input{display:flex;gap:8px;margin-top:10px}
.chat-input input{flex:1;border:1px solid var(--line);border-radius:11px;padding:10px 13px;background:var(--paper-2)}
.chat-layout{display:grid;grid-template-columns:290px 1fr;gap:18px;align-items:start}
.chat-side{padding:16px}
.chat-list{display:flex;flex-direction:column;gap:4px;max-height:60vh;overflow-y:auto}
.chat-item{display:flex;gap:8px;align-items:center;border:1px solid transparent;border-radius:11px;padding:9px 11px;background:transparent;text-align:left;transition:.15s;width:100%}
.chat-item:hover{background:color-mix(in srgb,var(--line) 35%,var(--paper-2));border-color:var(--line)}
.chat-item.on{background:var(--teal-soft);border-color:var(--teal)}
.chat-item .ci{flex:1;min-width:0}
.chat-item .ci b{display:block;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-item .ci span{font-size:11px;color:var(--muted)}

/* ---------------------------------------------------------------- fab */
.fab{position:fixed;right:calc(22px + env(safe-area-inset-right));bottom:calc(22px + env(safe-area-inset-bottom));z-index:120;
  width:58px;height:58px;border-radius:99px;border:0;background:var(--teal);color:#fff;display:grid;place-items:center;
  box-shadow:0 14px 30px rgba(14,110,92,.4);transition:.2s}
.fab:hover{transform:translateY(-3px) scale(1.04);background:var(--teal-deep)}
.fab-panel{position:fixed;right:calc(22px + env(safe-area-inset-right));bottom:calc(92px + env(safe-area-inset-bottom));z-index:120;
  width:min(380px,calc(100vw - 32px));background:var(--paper-2);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-lift);padding:14px;animation:rise .25s ease both}
.fab-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.fab-head b{display:block;font-size:14px}
.fab-head span{font-size:11.5px;color:var(--muted)}
.fab-head .icon-btn{margin-left:auto;width:32px;height:32px}
.fab-box{height:260px}
.fab-sug{margin:8px 0 0}

/* --------------------------------------------------------- toasts/modal */
#toasts{position:fixed;bottom:calc(22px + env(safe-area-inset-bottom));right:calc(22px + env(safe-area-inset-right));z-index:300;display:flex;flex-direction:column;gap:10px;max-width:calc(100vw - 32px)}
.toast{background:var(--ink);color:var(--paper);padding:12px 18px;border-radius:12px;font-size:13.5px;font-weight:600;display:flex;gap:10px;align-items:center;box-shadow:0 14px 30px rgba(0,0,0,.25);animation:toastIn .35s cubic-bezier(.2,.9,.3,1.2) both;max-width:360px}
.toast svg{width:17px;height:17px;color:var(--gold);flex:none}
.toast.warn svg{color:#ff9d8c}
@keyframes toastIn{from{opacity:0;transform:translateY(16px) scale(.95)}}
.toast.bye{animation:toastOut .3s ease both}
@keyframes toastOut{to{opacity:0;transform:translateY(10px)}}
.modal-bk{position:fixed;inset:0;background:rgba(10,30,26,.55);z-index:400;display:none;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(3px);overflow-y:auto}
.modal-bk.show{display:flex;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0}}
.modal{background:var(--paper-2);border-radius:20px;max-width:560px;width:100%;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.3);animation:rise .35s ease both;position:relative;margin:auto}
.modal-wide{max-width:820px}
.modal-x{position:absolute;top:14px;right:14px;width:34px;height:34px}
.modal h2{font-family:var(--disp);font-size:24px;margin:8px 0 4px}
.modal .sub{font-size:13.5px;color:var(--muted)}
.step3{display:flex;flex-direction:column;gap:10px;margin:18px 0}
.about-points{list-style:none;display:flex;flex-direction:column;gap:12px;margin:18px 0}
.about-points li{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:var(--ink-soft);line-height:1.5}
.about-points li svg{color:var(--teal);flex:none;margin-top:2px}
.step3 button{display:flex;gap:14px;align-items:center;text-align:left;border:1px solid var(--line);background:var(--paper-2);border-radius:13px;padding:13px 16px;transition:.18s;width:100%}
.step3 button:hover{border-color:var(--teal);transform:translateX(4px)}
.step3 .n{width:30px;height:30px;flex:none;border-radius:99px;background:var(--gold);color:#4d3302;display:grid;place-items:center;font-weight:800;font-family:var(--disp)}
.step3 b{display:block;font-size:14px}
.step3 span{font-size:12.5px;color:var(--muted)}
.note-strip{background:var(--gold-soft);border:1px solid var(--gold-line);border-radius:12px;padding:10px 15px;font-size:12.5px;color:color-mix(in srgb,var(--gold) 35%,var(--ink));display:flex;gap:9px;align-items:center;margin-bottom:16px}
.note-strip svg{width:16px;height:16px;flex:none}
.two-col{display:grid;grid-template-columns:minmax(340px,400px) 1fr;gap:18px;align-items:start}

/* ---------------------------------------------------------------- auth */
.auth{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr}
.auth-brand{background:linear-gradient(155deg,var(--teal-deep),var(--teal));color:#eaf3ee;padding:48px 52px;display:flex;flex-direction:column;gap:32px;position:relative;overflow:hidden}
.auth-brand::after{content:"";position:absolute;width:420px;height:420px;right:-160px;bottom:-160px;border-radius:50%;background:radial-gradient(circle,rgba(240,161,28,.35),transparent 70%)}
.auth-brand-top{display:flex;align-items:center;gap:12px}
.auth-brand-top .word{font-family:var(--disp);font-weight:800;font-size:24px;letter-spacing:-.02em}
.auth-brand-top .word em{font-style:normal;color:var(--gold)}
.auth-brand-copy{max-width:460px;margin-top:auto}
.auth-kicker{font-size:11.5px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:12px}
.auth-brand-copy h2{font-family:var(--disp);font-size:clamp(28px,3.4vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1.08;color:#fff}
.auth-brand-copy p{margin-top:14px;font-size:15px;opacity:.86;line-height:1.6}
.auth-points{list-style:none;display:flex;flex-direction:column;gap:14px;margin-top:auto;position:relative;z-index:1}
.auth-points li{display:flex;gap:12px;align-items:flex-start;font-size:13.5px;opacity:.95}
.auth-points li svg{width:20px;height:20px;flex:none;color:var(--gold);margin-top:2px}
.auth-points b{color:#fff}
.auth-panel{padding:48px 52px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:18px}
.auth-card{width:100%;max-width:400px}
.auth-card h1{font-family:var(--disp);font-size:30px;font-weight:800;letter-spacing:-.02em}
.auth-card .sub{font-size:14px;color:var(--muted);margin:6px 0 22px}
.auth-submit{width:100%;justify-content:center;margin-top:6px}
.auth-alt{font-size:13.5px;color:var(--muted);margin-top:18px;text-align:center}
.auth-foot{font-size:11.5px;color:var(--muted);max-width:400px;text-align:center}
.auth-error{background:var(--coral-soft);color:var(--coral);border-radius:10px;padding:10px 13px;font-size:12.5px;font-weight:600;margin-bottom:12px}

/* ------------------------------------------------------------ responsive */
@media (max-width:1020px){
  .shell{grid-template-columns:1fr;padding:16px}
  .sidenav{position:static;flex-direction:row;overflow-x:auto;padding-bottom:6px;gap:8px}
  .sidenav .nv{white-space:nowrap;width:auto;flex:none}
  .sidenav .side-note{display:none}
  .two-col,.tr-grid,.form-grid,.dash-cols,.progress-cols,.ingest-grid,.chat-layout{grid-template-columns:1fr}
  .chat-side{order:-1}
  .chat-list{max-height:220px}
  .auth{grid-template-columns:1fr}
  .auth-brand{padding:32px 26px;gap:22px}
  .auth-points{display:none}
  .auth-brand-copy{margin-top:0}
  .auth-panel{padding:32px 22px}
  .media-grid{grid-template-columns:1fr}
  .qtype-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{font-size:14.5px}
  input,select,textarea{font-size:16px}   /* iOS: no zoom on focus */
  .topbar{padding:calc(10px + env(safe-area-inset-top)) 14px 10px;gap:8px}
  .brand .word{font-size:19px}
  .brand .word small{display:none}
  .topbar-model{display:none}
  .avatar .nm{display:none}
  .avatar{padding:4px}
  .logout-btn span{display:none}
  .logout-btn{padding:9px 12px}
  .about-label{display:none}
  .about-btn{padding:9px 11px}
  .page-head h1{font-size:26px}
  .card{padding:16px}
  .chip-stat{min-width:calc(50% - 5px);flex:1}
  .btn{padding:11px 15px}
  .btn.big{padding:13px 16px;width:100%;justify-content:center}
  .btn-row>.btn.big{width:auto}
  .modal{padding:22px}
  .fab{width:52px;height:52px;right:calc(14px + env(safe-area-inset-right));bottom:calc(14px + env(safe-area-inset-bottom))}
  .fab-panel{right:calc(14px + env(safe-area-inset-right));left:calc(14px + env(safe-area-inset-left));width:auto;bottom:calc(76px + env(safe-area-inset-bottom))}
  .hbar-row{grid-template-columns:96px 1fr 44px}
  .drop-zone{padding:20px 14px}
}
@media (max-width:400px){
  .topbar{gap:6px}
  .model-chip{display:none}
  .fab{width:48px;height:48px}
  .fab-panel{bottom:calc(70px + env(safe-area-inset-bottom))}
}

/* ------------------------------------------------------------- a11y/misc */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .hbar-row .tr i{transition:none}
}
@media print{
  .topbar,.sidenav,#toasts,.btn,.note-strip,.fab,.fab-panel,.chat-sug,.chat-input,.modal-bk{display:none!important}
  body{background:#fff}
  body::before,body::after{display:none}
  .card{box-shadow:none;border-color:#ccc}
  .view{display:block!important}
}