/* ClassRounds — shared styles. Projector stage on the host, phone-first student view. */
:root{
  --bg:#edf2f1; --surface:#ffffff; --surface-2:#f5f8f7; --ink:#122120; --muted:#56696a; --line:#d2dddb;
  --accent:#0d7468; --accent-ink:#ffffff; --accent-soft:#d5ece8;
  --stage:#0d1a1b; --stage-2:#152627; --stage-ink:#e7f0ee; --stage-muted:#8ea3a1; --stage-line:#24393a;
  --a:#0e7490; --b:#a15c07; --c:#8a1f8f; --d:#3e4a8c; --tile-ink:#ffffff;
  --good:#16803c; --bad:#b4232a; --warn:#a15c07; --gold:#c99a2e; --silver:#8b9aa3; --bronze:#a8673a;
  --f-display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --f-body:"Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#091112; --surface:#111c1d; --surface-2:#0d1617; --ink:#e4eeec; --muted:#8fa3a1; --line:#223334;
  --accent:#2cc4ae; --accent-ink:#04201c; --accent-soft:#143a35;
  --stage:#050c0d; --stage-2:#0f1d1e; --stage-line:#1f3233; --warn:#e0a346;
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#091112; --surface:#111c1d; --surface-2:#0d1617; --ink:#e4eeec; --muted:#8fa3a1; --line:#223334;
  --accent:#2cc4ae; --accent-ink:#04201c; --accent-soft:#143a35;
  --stage:#050c0d; --stage-2:#0f1d1e; --stage-line:#1f3233; --warn:#e0a346;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body),"Noto Sans Telugu","Noto Sans Devanagari",sans-serif;font-size:15px;line-height:1.5;min-height:100vh}
[hidden]{display:none!important}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
h1,h2,h3{font-family:var(--f-display);letter-spacing:-.01em;text-wrap:balance;margin:0}

.btn{border:0;border-radius:10px;padding:10px 16px;font-weight:700;background:var(--accent);color:var(--accent-ink);display:inline-flex;align-items:center;gap:8px;justify-content:center}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.danger{background:transparent;color:var(--bad);border:1px solid currentColor}
.btn.sm{padding:6px 11px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.link{background:none;border:0;color:var(--accent);font-weight:700;padding:0}

/* app bar */
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px max(16px,env(safe-area-inset-right,0px)) 12px max(16px,env(safe-area-inset-left,0px));border-bottom:1px solid var(--line);background:var(--surface)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.brand svg{width:32px;height:21px;flex:none}
.word{font-family:var(--f-display);font-weight:800;font-size:23px;letter-spacing:-.02em;line-height:1}
.word span{color:var(--accent)}
.by{font-size:11px;color:var(--muted);letter-spacing:.05em}
.who{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.modepill{font-size:11px;text-transform:uppercase;letter-spacing:.08em;border:1px solid var(--warn);color:var(--warn);border-radius:999px;padding:3px 9px;font-weight:700}

.page{max-width:1080px;margin:0 auto;padding:24px max(16px,env(safe-area-inset-right,0px)) 48px max(16px,env(safe-area-inset-left,0px));display:flex;flex-direction:column;gap:20px}
.head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
.head h1{font-size:30px;font-weight:800}
.sub{color:var(--muted);margin:4px 0 0;max-width:65ch}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:700}

/* library */
.qlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.qcard{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px;min-width:0}
.qcard h3{font-size:18px;overflow-wrap:anywhere}
.meta{font-size:13px;color:var(--muted)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.empty{background:var(--surface);border:1.5px dashed var(--line);border-radius:14px;padding:28px;text-align:center;color:var(--muted);display:flex;flex-direction:column;gap:12px;align-items:center}

/* sign-in */
.signin{max-width:440px;margin:8vh auto 0;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:14px}

/* editor */
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field>label,.lbl{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.in{width:100%;padding:10px 12px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface-2);font-size:15px}
textarea.in{resize:vertical;min-height:64px;line-height:1.45}
.grid2{display:grid;grid-template-columns:2fr 1fr;gap:14px}
.qed{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:12px}
.qed.flag{border-color:var(--warn)}
.qed-h{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.qed-h b{font-family:var(--f-mono);font-size:13px;color:var(--muted)}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.optin{display:flex;align-items:center;gap:8px;border:1.5px solid var(--line);border-radius:10px;padding:4px 8px 4px 4px;background:var(--surface-2)}
.optin.ok{border-color:var(--good);box-shadow:inset 0 0 0 1px var(--good)}
.optin .L{font-family:var(--f-mono);font-weight:700;width:28px;height:28px;border-radius:7px;display:grid;place-items:center;color:var(--tile-ink);flex:none}
.optin input[type=text]{border:0;background:transparent;flex:1;min-width:0;padding:6px 2px;font-size:15px}
.optin label{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:4px;white-space:nowrap;cursor:pointer}
.La{background:var(--a)}.Lb{background:var(--b)}.Lc{background:var(--c)}.Ld{background:var(--d)}
.issues{font-size:13px;color:var(--warn);font-weight:700}
.mediabox{display:flex;gap:12px;align-items:center;flex-wrap:wrap;border:1px dashed var(--line);border-radius:10px;padding:10px}
.mediabox img{max-height:90px;max-width:160px;border-radius:6px;object-fit:contain;background:var(--surface-2)}
.mediabox audio{max-width:260px}
.qmedia-tag{font-size:13px;font-family:var(--f-mono);color:var(--muted)}
.sticky-save{position:sticky;bottom:0;background:var(--bg);padding:12px 0;display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;border-top:1px solid var(--line)}

/* import review */
.dialog{position:fixed;inset:0;background:rgba(5,12,13,.55);display:grid;place-items:center;padding:16px;z-index:50}
.dlg{background:var(--surface);border-radius:16px;max-width:760px;width:100%;max-height:88vh;display:flex;flex-direction:column;overflow:hidden}
.dlg-h{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.dlg-b{padding:16px 20px;overflow:auto;display:flex;flex-direction:column;gap:10px}
.dlg-f{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}
.prev{border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:4px}
.prev .o{font-size:14px;color:var(--muted)}
.prev .o.ok{color:var(--good);font-weight:700}
.prev img{max-height:70px;max-width:140px;border-radius:6px}
.fmt{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-family:var(--f-mono);font-size:13px;white-space:pre-wrap;line-height:1.5;margin:0}

/* game: projector stage */
.game{position:fixed;inset:0;background:var(--stage);color:var(--stage-ink);display:flex;flex-direction:column;z-index:20;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
.stage{container-type:inline-size;flex:1;display:flex;flex-direction:column;min-height:0;position:relative;overflow:hidden}
.stage-in{flex:1;display:flex;flex-direction:column;padding:2.6cqi max(16px,3.2cqi);gap:1.8cqi;min-height:0}
.s-head{display:flex;justify-content:space-between;align-items:center;gap:2cqi;font-size:max(12px,1.35cqi);color:var(--stage-muted);letter-spacing:.06em;text-transform:uppercase;flex-wrap:wrap}
.s-head b{color:var(--stage-ink)}
.ecg{position:absolute;left:0;right:0;bottom:0;height:14%;opacity:.3;pointer-events:none}
.ecg path{fill:none;stroke:var(--accent);stroke-width:2}
.ctl{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px max(16px,env(safe-area-inset-right,0px)) 12px max(16px,env(safe-area-inset-left,0px));border-top:1px solid var(--stage-line);background:var(--stage-2)}
.ctl .hint{color:var(--stage-muted);font-size:13px}
.ctl .btn.ghost{color:var(--stage-ink);border-color:var(--stage-line)}

.lobby{display:grid;grid-template-columns:1fr 1.2fr;gap:3cqi;flex:1;min-height:0}
.join-box{display:flex;flex-direction:column;justify-content:center;gap:1.2cqi;min-width:0}
.join-box .k{font-size:max(13px,1.6cqi);color:var(--stage-muted)}
.join-box .url{font-family:var(--f-display);font-weight:700;font-size:max(17px,2.6cqi);overflow-wrap:anywhere}
.pin{font-family:var(--f-mono);font-weight:700;font-size:max(36px,8cqi);letter-spacing:.04em;line-height:1}
.topic{font-family:var(--f-display);font-size:max(14px,2cqi);font-weight:500}
.roster{background:var(--stage-2);border:1px solid var(--stage-line);border-radius:12px;padding:1.8cqi;display:flex;flex-direction:column;gap:1.2cqi;min-height:0;overflow:auto}
.roster-h{display:flex;justify-content:space-between;align-items:baseline;font-size:max(13px,1.5cqi);color:var(--stage-muted);gap:10px;flex-wrap:wrap}
.roster-h b{font-family:var(--f-mono);font-size:max(20px,3cqi);color:var(--stage-ink)}
.chips{display:flex;flex-wrap:wrap;gap:.8cqi;align-content:flex-start}
.chip{font-size:max(12px,1.45cqi);padding:.4cqi .4cqi .4cqi 1.2cqi;border-radius:999px;background:var(--stage-line);color:var(--stage-ink);display:inline-flex;align-items:center;gap:6px;animation:pop .35s ease-out}
.chip.dup{background:transparent;box-shadow:inset 0 0 0 2px var(--warn)}
.chip .x{border:0;background:transparent;color:var(--stage-muted);width:24px;height:24px;border-radius:50%;font-size:16px;line-height:1;display:grid;place-items:center}
.chip .x:hover{background:var(--stage-2);color:var(--stage-ink)}
.dupnote{font-size:max(12px,1.35cqi);color:var(--warn)}
@keyframes pop{from{transform:scale(.7);opacity:.3}to{transform:none;opacity:1}}

.qbody{flex:1;display:flex;gap:2.6cqi;min-height:0;align-items:stretch}
.qcol{flex:1;display:flex;flex-direction:column;gap:1.6cqi;min-width:0}
.qrow{display:grid;grid-template-columns:1fr auto;gap:2.6cqi;align-items:center}
.qtext{font-family:var(--f-display);font-weight:700;font-size:max(18px,3cqi);line-height:1.18;margin:0}
.qmedia{flex:0 1 42%;display:flex;align-items:center;justify-content:center;min-width:0;min-height:0}
.qmedia-img{max-width:100%;max-height:100%;object-fit:contain;border-radius:10px;background:#fff}
.qmedia-yt{width:100%;aspect-ratio:16/9;border:0;border-radius:10px}
.qmedia-audio{width:100%}
.ring{width:max(60px,10cqi);height:max(60px,10cqi);position:relative;flex:none}
.ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:7}
.ring .tr{stroke:var(--stage-line)}
.ring .fg{stroke:var(--accent);stroke-linecap:round;transition:stroke-dashoffset .3s linear}
.ring .fg.low{stroke:var(--bad)}
.ring span{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--f-mono);font-weight:700;font-size:max(20px,3.4cqi)}
.count{font-size:max(13px,1.5cqi);color:var(--stage-muted)}
.count b{font-family:var(--f-mono);color:var(--stage-ink)}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:1.2cqi;margin-top:auto}
.tile{display:flex;align-items:center;gap:1.4cqi;padding:1.4cqi 1.8cqi;border-radius:10px;color:var(--tile-ink);font-size:max(14px,1.95cqi);font-weight:700;min-height:7cqi;position:relative;overflow:hidden}
.tile .L{font-family:var(--f-mono);width:max(28px,3.8cqi);height:max(28px,3.8cqi);border-radius:7px;display:grid;place-items:center;background:rgba(255,255,255,.18);flex:none}
.tA{background:var(--a)}.tB{background:var(--b)}.tC{background:var(--c)}.tD{background:var(--d)}
.tile.dim{opacity:.28}
.tile .bar{position:absolute;left:0;bottom:0;height:6px;background:rgba(255,255,255,.75)}
.tile .n{margin-left:auto;font-family:var(--f-mono)}
.pearl{display:grid;grid-template-columns:1fr auto;gap:2cqi;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:10px;padding:1.4cqi 1.8cqi;font-size:max(13px,1.65cqi);line-height:1.45}
.pearl .h{font-size:max(11px,1.2cqi);text-transform:uppercase;letter-spacing:.1em;color:var(--accent);font-weight:700;display:block;margin-bottom:.3cqi}
.pidx{text-align:right;white-space:nowrap}
.pidx b{display:block;font-family:var(--f-mono);font-size:max(20px,3.2cqi);color:var(--stage-ink)}
.pidx small{color:var(--stage-muted)}
.big-h{font-family:var(--f-display);font-weight:800;font-size:max(22px,3.8cqi);margin:0}
.lb{display:flex;flex-direction:column;gap:1cqi;flex:1;justify-content:center;max-width:900px;width:100%;margin:0 auto}
.lb-row{display:grid;grid-template-columns:max(30px,4.4cqi) 1fr auto auto;gap:2cqi;align-items:center;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:10px;padding:1.2cqi 2cqi;font-size:max(14px,2.1cqi);animation:slide .4s ease-out both}
.lb-row .r{font-family:var(--f-mono);font-weight:700;color:var(--stage-muted)}
.lb-row .nm{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.lb-row .sc{font-family:var(--f-mono);font-weight:700}
.lb-row .dl{font-family:var(--f-mono);font-size:max(12px,1.4cqi);color:var(--accent);min-width:7ch;text-align:right}
@keyframes slide{from{transform:translateX(-12px);opacity:0}to{transform:none;opacity:1}}
.pod{display:grid;grid-template-columns:repeat(3,1fr);gap:2cqi;align-items:end;flex:1;padding-inline:8cqi;max-width:1000px;width:100%;margin:0 auto}
.step{display:flex;flex-direction:column;align-items:center;gap:.8cqi;text-align:center;min-width:0}
.step .nm{font-weight:700;font-size:max(14px,2.2cqi);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.step .sc{font-family:var(--f-mono);font-size:max(12px,1.5cqi);color:var(--stage-muted)}
.block{width:100%;border-radius:10px 10px 0 0;display:grid;place-items:start center;padding-top:1.2cqi;font-family:var(--f-display);font-weight:800;font-size:max(24px,4.6cqi);color:var(--stage)}
.g{background:var(--gold);height:20cqi}.s{background:var(--silver);height:14cqi}.b{background:var(--bronze);height:9cqi}

/* report */
.report{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:10px;color:var(--ink)}
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:560px}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
td.num{font-family:var(--f-mono);font-variant-numeric:tabular-nums;white-space:nowrap}
.pill{font-size:12px;font-weight:700;padding:2px 9px;border-radius:999px;border:1.5px solid currentColor;white-space:nowrap}
.easy{color:var(--good)}.mod{color:var(--warn)}.hard{color:var(--bad)}
.note{font-size:13px;color:var(--muted);max-width:75ch;margin:0}

/* student phone */
.phone-app{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;
  padding:16px max(16px,env(safe-area-inset-right,0px)) 24px max(16px,env(safe-area-inset-left,0px));gap:14px}
.ph-top{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);gap:10px}
.ph-top .word{font-size:20px}
.phone-app h2{font-size:26px;font-weight:800;line-height:1.15}
.phone-app p{margin:0;color:var(--muted)}
.phone-app .in{font-size:18px;padding:13px 14px;border-radius:12px}
.phone-app .in.mono{font-family:var(--f-mono);letter-spacing:.14em}
.phone-app .btn{padding:15px;font-size:17px;border-radius:12px}
.err{color:var(--bad);font-size:14px;min-height:1.3em;margin:0}
.center{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:12px}
.pulse{width:66px;height:66px;border-radius:50%;background:var(--accent);animation:beat 1.2s ease-in-out infinite;display:grid;place-items:center;color:var(--accent-ink);font-weight:800;font-family:var(--f-display);font-size:24px}
@keyframes beat{0%,100%{transform:scale(1)}15%{transform:scale(1.12)}30%{transform:scale(.98)}45%{transform:scale(1.06)}}
.pq{font-family:var(--f-display);font-weight:700;font-size:18px;line-height:1.3}
.ptiles{flex:1;display:grid;grid-auto-rows:1fr;gap:10px;min-height:300px}
.ptile{border:0;border-radius:14px;color:var(--tile-ink);display:flex;align-items:center;gap:12px;padding:12px 14px;text-align:left;font-weight:700;font-size:16px;line-height:1.25;width:100%}
.ptile .L{font-family:var(--f-mono);width:36px;height:36px;border-radius:9px;background:rgba(255,255,255,.2);display:grid;place-items:center;flex:none;font-size:17px}
.ptile:active{transform:scale(.98)}
.band{border-radius:16px;padding:22px 18px;text-align:center;color:#fff;display:flex;flex-direction:column;gap:4px;width:100%}
.band.ok{background:var(--good)}.band.no{background:var(--bad)}.band.none{background:#5b6b6c}
.band b{font-family:var(--f-display);font-size:28px;font-weight:800}
.band span{font-family:var(--f-mono);font-size:17px}
.stat{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:12px;font-size:15px;width:100%}
.stat b{font-family:var(--f-mono)}
.bigrank{font-family:var(--f-mono);font-weight:700;font-size:64px;line-height:1;color:var(--accent)}

.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translate(-50%,30px);opacity:0;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-size:14px;transition:.25s;z-index:99;max-width:calc(100% - 32px);pointer-events:none}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.bad{background:var(--bad);color:#fff}

@media (max-width:760px){
  .grid2,.opts{grid-template-columns:1fr}
  .lobby{grid-template-columns:1fr}
  .qbody{flex-direction:column}
  .qmedia{flex-basis:auto;max-height:34vh}
  .tiles{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- question formats ---------- */
.typesel{width:auto;padding:6px 10px;font-size:14px;font-weight:700}
.grid3{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:12px}
.tfopt{flex:1;padding:6px 2px;font-weight:700}
.seq{display:flex;flex-direction:column;gap:8px}
.seq-row{display:flex;align-items:center;gap:8px}
.seq-row .in{flex:1;min-width:0}
.seq-n{font-family:var(--f-mono);font-weight:700;width:28px;height:28px;border-radius:7px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);flex:none}
.arrow{color:var(--muted);font-weight:700}
.hs-edit{display:flex;flex-direction:column;gap:10px}
.hs-wrap{position:relative;display:inline-block;max-width:100%;line-height:0;cursor:crosshair;border-radius:10px;overflow:hidden;background:#fff}
.hs-wrap img{display:block;max-width:100%;max-height:420px;width:auto;height:auto}
.hs-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hs-target{fill:rgba(22,128,60,.22);stroke:var(--good);stroke-width:4}
.hs-in{fill:var(--good);stroke:#fff;stroke-width:2}
.hs-out{fill:var(--bad);stroke:#fff;stroke-width:2}
.hs-wrap.view{cursor:default}
.hs-wrap.view img{max-height:100%}
.qmedia .hs-wrap{max-height:100%}
.qbody.wide-media .qmedia{flex-basis:52%}

/* projector */
.qhint{display:inline-block;margin-top:.8cqi;font-size:max(12px,1.4cqi);text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:700}
.tiles.two{grid-template-columns:1fr 1fr}
.numbox{margin-top:auto;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:12px;padding:2cqi;display:flex;flex-direction:column;gap:1cqi;align-items:flex-start}
.numbox .k{color:var(--stage-muted);font-size:max(13px,1.7cqi)}
.numbox .unit{font-family:var(--f-display);font-weight:700;font-size:max(16px,2.4cqi)}
.numbox .big{font-family:var(--f-mono);font-weight:700;font-size:max(26px,4.6cqi);line-height:1.1;color:var(--stage-ink)}
.numbox.ans{margin-top:0}
.vchips{display:flex;flex-wrap:wrap;gap:.8cqi}
.vchip{font-family:var(--f-mono);font-size:max(13px,1.7cqi);padding:.5cqi 1.2cqi;border-radius:999px;background:var(--stage-line);color:var(--stage-ink)}
.vchip.ok{background:var(--good);color:#fff}
.stack{display:flex;flex-direction:column;gap:.9cqi;margin-top:auto}
.stack-i{display:flex;align-items:center;gap:1.4cqi;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:10px;padding:1.1cqi 1.6cqi;font-size:max(14px,1.9cqi);font-weight:700}
.stack-i .dot{width:max(10px,1.2cqi);height:max(10px,1.2cqi);border-radius:50%;background:var(--accent);flex:none}
.stack-i .L{font-family:var(--f-mono);width:max(26px,3.4cqi);height:max(26px,3.4cqi);border-radius:7px;display:grid;place-items:center;background:var(--accent);color:var(--accent-ink);flex:none}
.stack-i.alt .L{background:var(--d);color:#fff}
.stack-i.ok{border-color:var(--good)}
.stack-i.ok .L{background:var(--good);color:#fff}
.mgrid{display:grid;grid-template-columns:1fr 1fr;gap:1.6cqi;margin-top:auto}
.mgrid .stack{margin-top:0}

/* phone */
.ptile{position:relative}
.ptile .tick{margin-left:auto;width:28px;height:28px;border-radius:50%;border:2px solid rgba(255,255,255,.7);display:grid;place-items:center;color:transparent;flex:none}
.ptile.on{box-shadow:0 0 0 4px var(--ink)}
.ptile.on .tick{background:#fff;color:var(--ink);border-color:#fff}
.band.part{background:var(--warn)}
.sent{background:var(--surface);border:1.5px solid var(--line);border-radius:14px;padding:14px 16px;font-weight:700;width:100%;text-align:left;line-height:1.5}
.numin{font-size:28px!important;text-align:center}
.olist{display:flex;flex-direction:column;gap:8px}
.oitem{display:flex;align-items:center;gap:12px;text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font-weight:700;font-size:15px;line-height:1.3}
.oitem .onum{font-family:var(--f-mono);width:32px;height:32px;border-radius:8px;border:2px dashed var(--line);display:grid;place-items:center;flex:none}
.oitem.on{border-color:var(--accent)}
.oitem.on .onum{background:var(--accent);color:var(--accent-ink);border:0}
.mlist{display:flex;flex-direction:column;gap:12px}
.mrow{display:flex;flex-direction:column;gap:6px}
.mrow label{display:flex;gap:10px;align-items:center;font-weight:700}
.mrow label .L{font-family:var(--f-mono);width:28px;height:28px;border-radius:7px;display:grid;place-items:center;background:var(--accent);color:var(--accent-ink);flex:none}
.mrow select.in{font-size:16px;padding:11px 12px}
.hs-wrap.phone{display:block;cursor:crosshair}
.hs-wrap.phone img{max-height:none;width:100%}
.hs-mark{position:absolute;width:30px;height:30px;margin:-15px 0 0 -15px;border-radius:50%;border:4px solid #fff;background:var(--bad);box-shadow:0 0 0 2px var(--ink);pointer-events:none}

@media (max-width:760px){ .grid3,.mgrid{grid-template-columns:1fr} .tiles.two{grid-template-columns:1fr 1fr} }
.phone-app .pq{color:var(--ink)}
.numbox .big small{font-family:var(--f-body);font-size:.42em;font-weight:700;color:var(--stage-muted);margin-left:.4em}
/* hotspot: the overlay must match the picture exactly, so the frame sets the width and the picture fills it */
.hs-wrap{display:block;width:min(100%,640px)}
.hs-wrap img,.hs-wrap.view img{width:100%;max-height:none;height:auto}
.qmedia .hs-wrap{width:100%}

/* ---------- feedback ---------- */
.fb{display:flex;flex-direction:column;gap:14px}
.fb-stars{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.fb-star{border:0;background:none;font-size:34px;line-height:1;color:var(--line);padding:2px 3px;border-radius:8px}
.fb-star.on{color:var(--gold)}
.fb-star:hover{color:var(--gold)}
.fb-wishes{border:0;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px}
.fb-wishes legend{margin-bottom:8px;padding:0}
.fb-wish{display:flex;gap:9px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:9px 11px;font-size:14px;cursor:pointer;line-height:1.35}
.fb-wish input{margin-top:3px;flex:none}
.fb-done{margin:0;padding:14px 16px;border-radius:12px;background:var(--accent-soft);font-weight:700}
.fb-card{border-color:var(--accent)}
.fb-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.fb-kpis .report{gap:4px}
.kpi{font-family:var(--f-mono);font-size:34px;line-height:1.1}
.kpi small{font-size:16px;color:var(--muted)}
.kpi.sm{font-family:var(--f-display);font-size:18px;line-height:1.3}
.fb-bars{display:flex;flex-direction:column;gap:8px}
.fb-bar{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) 3ch;gap:12px;align-items:center;font-size:14px}
.fb-bar .track{height:10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);overflow:hidden}
.fb-bar .track span{display:block;height:100%;background:var(--accent)}
.fb-bar b{font-family:var(--f-mono);text-align:right}
.fb-item{border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:8px}
.fb-rate{color:var(--gold);font-size:20px;letter-spacing:2px}
.fb-text{margin:0;white-space:pre-wrap;line-height:1.55;max-width:75ch}
.fb-tags{display:flex;flex-wrap:wrap;gap:6px}
.sel{user-select:all}
@media (max-width:760px){ .fb-bar{grid-template-columns:1fr 3ch} .fb-bar .track{grid-column:1/-1;grid-row:2} }

/* ---------- live leaderboard panel ---------- */
.stage-grid{flex:1;display:grid;grid-template-columns:minmax(0,1fr) clamp(220px,24%,340px);min-height:0}
.stage-grid>.stage-in{min-width:0}
.lbside{border-left:1px solid var(--stage-line);background:var(--stage-2);padding:2.2cqi 1.6cqi;display:flex;flex-direction:column;gap:1cqi;min-height:0;overflow:hidden}
.lbs-h{display:flex;justify-content:space-between;align-items:baseline;font-size:max(12px,1.3cqi);text-transform:uppercase;letter-spacing:.08em;color:var(--stage-muted);font-weight:700}
.lbs-h b{font-family:var(--f-mono);color:var(--stage-ink);font-size:max(14px,1.6cqi)}
.lbs{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.6cqi}
.lbs-row{display:grid;grid-template-columns:max(22px,2.6cqi) minmax(0,1fr) auto auto;gap:.9cqi;align-items:center;background:var(--stage);border:1px solid var(--stage-line);border-radius:8px;padding:.7cqi 1cqi;font-size:max(13px,1.5cqi);will-change:transform}
.lbs-row.top{border-color:var(--accent)}
.lbs-row .r{font-family:var(--f-mono);font-weight:700;color:var(--stage-muted)}
.lbs-row.top .r{color:var(--accent)}
.lbs-row .nm{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lbs-row .sc{font-family:var(--f-mono);font-weight:700;text-align:right}
.lbs-row .dl{font-family:var(--f-mono);font-size:max(11px,1.2cqi);color:var(--accent);white-space:nowrap}
.lbs-row .up{color:var(--good)}
.lbs-row .ans{width:max(10px,1.1cqi);height:max(10px,1.1cqi);border-radius:50%;border:2px solid var(--stage-line)}
.lbs-row .ans.on{background:var(--accent);border-color:var(--accent)}
.lbs-more{margin:0;font-size:max(12px,1.3cqi);color:var(--stage-muted)}
.stage-grid .qbody.wide-media .qmedia{flex-basis:46%}
.stage-grid .tile{font-size:max(13px,1.75cqi)}
.ctl-opts{display:flex;flex-direction:column;gap:4px}

/* final results */
.stage-in.final .pod{flex:1 1 auto}
.rest{list-style:none;margin:0 auto;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.8cqi;width:100%;max-width:1100px}
.rest li{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:1.2cqi;align-items:center;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:10px;padding:.9cqi 1.4cqi;font-size:max(13px,1.7cqi);animation:slide .45s ease-out both}
.rest .r{font-family:var(--f-mono);font-weight:700;color:var(--stage-muted)}
.rest .nm{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rest .sc{font-family:var(--f-mono)}
.game:fullscreen{width:100%;height:100%}
@media (max-width:760px){ .stage-grid{grid-template-columns:1fr} .lbside{display:none} }
.lbs-row .nm{display:flex;flex-direction:column;line-height:1.2}
.lbs-row .nm .dl{font-weight:500}
.stage-in.final{gap:1.4cqi}
.stage-in.final .big-h{font-size:max(20px,3.2cqi)}
.stage-in.final .g{height:13cqi}.stage-in.final .s{height:9.5cqi}.stage-in.final .b{height:6.5cqi}
.stage-in.final .block{font-size:max(20px,3.6cqi);padding-top:.8cqi}
.stage-in.final .pod{flex:0 1 auto;margin-top:auto}
.rest{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.rest li{padding:.6cqi 1.2cqi;font-size:max(13px,1.5cqi)}
.lbs-row{padding:.55cqi 1cqi}

/* ---------- word cloud ---------- */
.cloud{position:relative;flex:1;min-height:260px;margin-top:1cqi;border-radius:12px;background:var(--stage-2);border:1px solid var(--stage-line);overflow:hidden}
.cloud-empty{position:absolute;inset:0;display:grid;place-items:center;margin:0;color:var(--stage-muted);font-size:max(14px,1.8cqi)}
.cw{position:absolute;border:0;background:none;padding:0 .15em;line-height:1.05;font-family:var(--f-display);font-weight:800;white-space:nowrap;cursor:pointer;border-radius:6px;animation:pop .4s ease-out}
.cw:hover{text-decoration:line-through;opacity:.6}
.cw.c0{color:#5fd4c2}.cw.c1{color:#f0b44c}.cw.c2{color:#d48be0}.cw.c3{color:#9fb0ff}.cw.c4{color:var(--stage-ink)}
.stage-in .qcol:has(.cloud){min-height:0}

/* ---------- home: choose an activity ---------- */
.acts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
@media (max-width:700px){.acts{grid-template-columns:1fr}}
.act-card{display:flex;flex-direction:column;align-items:flex-start;gap:10px;text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:18px;padding:24px;color:var(--ink);transition:border-color .15s,transform .15s,box-shadow .15s}
.act-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 14px 30px -22px rgba(0,0,0,.5)}
.act-ico{width:64px;height:64px;border-radius:14px;background:var(--stage);display:grid;place-items:center}
.act-ico svg{width:48px;height:48px}
.act-ico text{font-family:var(--f-display);font-weight:800}
.act-ico .w1{font-size:15px;fill:#5fd4c2}.act-ico .w2{font-size:13px;fill:#f0b44c}.act-ico .w3{font-size:8px;fill:#d48be0}
.act-ico .t1{fill:var(--a)}.act-ico .t2{fill:var(--b)}.act-ico .t3{fill:var(--c)}.act-ico .t4{fill:var(--d)}
.act-t{font-family:var(--f-display);font-weight:800;font-size:26px;letter-spacing:-.01em}
.act-d{color:var(--muted);line-height:1.55;max-width:52ch}
.act-go{margin-top:auto;padding-top:6px;color:var(--accent);font-weight:700}
.more-acts{margin:0;color:var(--muted);font-size:14px}
.cloud-new{gap:12px}

/* ---------- word cloud projector screen ---------- */
.cloudstage{gap:1.6cqi}
.cloud-top{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:3cqi;align-items:center}
.cloud-top .qtext{font-size:max(20px,3.2cqi)}
.joinmini{display:flex;gap:1.4cqi;align-items:center;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:12px;padding:1cqi 1.4cqi}
.joinmini>div:last-child{display:flex;flex-direction:column;gap:.2cqi}
.joinmini .k{font-size:max(11px,1.2cqi);color:var(--stage-muted);text-transform:uppercase;letter-spacing:.08em}
.joinmini .url{font-family:var(--f-display);font-size:max(14px,1.8cqi)}
.joinmini .pin{font-size:max(24px,3.6cqi)}
.qrbox{width:max(80px,9cqi);background:#fff;border-radius:8px;padding:4px;flex:none;line-height:0}
.s-head .live{color:var(--accent)}
.cloudstage .cloud{margin-top:0}
@media (max-width:760px){ .cloud-top{grid-template-columns:1fr} }

/* ---------- attendance ---------- */
.act-ico .sheet{fill:#e7f0ee}.act-ico .tick{fill:none;stroke:var(--good);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.act-ico .ln{fill:#8ea3a1}
.att-form{gap:14px}
.att-rolls{display:grid;grid-template-columns:1.2fr .8fr .8fr 1.4fr;gap:12px}
.att-checks{border:0;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.att-checks legend{margin-bottom:8px;padding:0}
.in.inline{display:inline-block;width:auto;padding:2px 6px;font-size:14px;margin:0 2px}
.attstage{gap:1.4cqi}
.att-wrap{flex:1;display:grid;grid-template-columns:minmax(0,1fr) clamp(220px,26%,360px);gap:2cqi;min-height:0}
.att-main{display:flex;flex-direction:column;gap:1.4cqi;min-height:0;min-width:0}
.att-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2cqi}
.ast{background:var(--stage-2);border:1px solid var(--stage-line);border-radius:12px;padding:1.2cqi 1.6cqi;display:flex;flex-direction:column;gap:.3cqi;min-width:0}
.ast b{font-family:var(--f-mono);font-size:max(28px,4.6cqi);line-height:1.05}
.ast .k,.abs-h .k,.att-side .k{font-size:max(11px,1.25cqi);color:var(--stage-muted)}
.ast .k.warn{color:#f0b44c;font-weight:700}
.ast .k.ok{color:#5fd4c2;font-weight:700}
.headin{font-family:var(--f-mono);font-weight:700;font-size:max(28px,4.6cqi);line-height:1.05;width:100%;background:transparent;border:0;border-bottom:2px dashed var(--stage-line);color:var(--stage-ink);padding:0}
.headin:focus{outline:none;border-bottom-color:var(--accent)}
.abs-h{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap;font-size:max(12px,1.4cqi);text-transform:uppercase;letter-spacing:.08em;color:var(--stage-muted);font-weight:700}
.abs-h .k{text-transform:none;letter-spacing:0;font-weight:400}
.abs-grid{flex:1;overflow:auto;display:flex;flex-wrap:wrap;gap:.7cqi;align-content:flex-start;padding:.2cqi}
.ab{font-family:var(--f-mono);font-weight:700;font-size:max(15px,2.1cqi);padding:.5cqi 1.1cqi;border-radius:8px;background:var(--stage-2);border:1px solid var(--stage-line);color:var(--stage-ink);animation:pop .3s ease-out}
.ab:hover{border-color:var(--accent)}
.ab.armed{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-family:var(--f-body)}
.all-in{margin:auto;font-family:var(--f-display);font-weight:800;font-size:max(20px,3cqi);color:#5fd4c2}
.att-side{display:flex;flex-direction:column;gap:1.2cqi;min-height:0;overflow:auto}
.joinmini.col{flex-direction:column;align-items:flex-start}
.joinmini.col .qrbox{width:max(110px,11cqi)}
.att-alerts{display:flex;flex-direction:column;gap:1cqi}
.alert-box{background:var(--stage-2);border:1px solid var(--stage-line);border-radius:12px;padding:1cqi 1.2cqi;display:flex;flex-direction:column;gap:.5cqi;font-size:max(13px,1.4cqi)}
.alert-box.bad{border-color:#e0707a;box-shadow:inset 4px 0 0 #e0707a}
.alert-box>div{display:flex;flex-wrap:wrap;gap:.5cqi}
.alert-chip{font-family:var(--f-mono);font-weight:700;font-size:max(12px,1.35cqi);padding:.2cqi .8cqi;border-radius:6px;background:var(--stage-line);color:var(--stage-ink)}
.selfies{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:12px}
.selfies figure{margin:0;display:flex;flex-direction:column;gap:4px}
.selfies img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;background:var(--surface-2)}
.selfies figcaption{font-family:var(--f-mono);font-weight:700;font-size:13px;text-align:center}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.45;border:1.5px solid var(--line);border-radius:12px;padding:12px}
.consent input{margin-top:3px;flex:none;width:18px;height:18px}
.selfie-box{display:flex;flex-direction:column;gap:8px;align-items:stretch}
.selfie-box img{width:120px;height:120px;object-fit:cover;border-radius:12px;align-self:center}
@media (max-width:760px){ .att-rolls{grid-template-columns:1fr 1fr} .att-wrap{grid-template-columns:1fr} .att-stats{grid-template-columns:1fr} }
.link.refresh{align-self:center;font-weight:500;font-size:13px;color:var(--muted);text-decoration:underline;padding:8px}
.net-note{margin:0;text-align:center;color:var(--warn);font-weight:700;font-size:14px}
.s-head .pinpill{font-family:var(--f-mono);color:var(--stage-ink);background:var(--stage-2);border:1px solid var(--stage-line);border-radius:999px;padding:.2cqi 1cqi;letter-spacing:.04em}

/* ---------- QR codes big enough to scan from the back row ---------- */
.lobby{grid-template-columns:1.25fr 1fr}
.join-box{align-items:flex-start}
.qrbig{display:block;width:min(30cqi,48vh);max-width:100%;aspect-ratio:1;background:#fff;border:0;border-radius:14px;padding:0;line-height:0;cursor:zoom-in;flex:none}
.qrbig svg,.qrbox svg,.qro-code svg{width:100%;height:100%;display:block}
.join-box .pin{font-size:max(32px,6.4cqi)}
.qrbox{border:0;cursor:zoom-in}
.qrbox.big{width:min(17cqi,26vh)}
.cloud-top{align-items:start}
.joinmini.col .qrbox.side{width:100%;max-width:min(100%,34vh)}
.pinpill{border:0;cursor:zoom-in;font:inherit;text-transform:none;letter-spacing:.02em;margin-left:.6em}
.qr-overlay{position:absolute;inset:0;z-index:40;background:var(--stage);display:grid;place-items:center;padding:3vh max(16px,3vw)}
.qro-in{display:flex;align-items:center;justify-content:center;gap:5vw;flex-wrap:wrap;width:100%;height:100%}
.qro-code{height:min(84vh,62vw);aspect-ratio:1;max-width:100%;background:#fff;border-radius:20px;padding:0;line-height:0}
.qro-txt{display:flex;flex-direction:column;gap:1.2vh;color:var(--stage-ink);min-width:0}
.qro-txt .k{color:var(--stage-muted);font-size:clamp(14px,2vw,26px)}
.qro-txt .url{font-family:var(--f-display);font-size:clamp(20px,3vw,44px);overflow-wrap:anywhere}
.qro-txt .pin{font-family:var(--f-mono);font-weight:700;font-size:clamp(40px,7vw,120px);line-height:1}
.qro-txt .btn{align-self:flex-start;margin-top:2vh}
@media (max-aspect-ratio:1/1){ .qro-code{height:auto;width:min(86vw,60vh)} }
.lobby{grid-template-columns:1.7fr 1fr}
.join-box{flex-direction:row;align-items:center;gap:2.6cqi}
.join-txt{display:flex;flex-direction:column;gap:1cqi;min-width:0}
.qrbig{width:min(28cqi,50vh)}
.join-box .pin{font-size:max(30px,5.2cqi)}
@media (max-width:760px){ .join-box{flex-direction:column;align-items:flex-start} .qrbig{width:min(70vw,50vh)} }

/* ======================= statistics ======================= */
:root{--ch-ink:var(--ink);--ch-muted:var(--muted);--ch-grid:var(--line);--ch-surface:var(--surface-2);
  --ch-s1:#2a78d6;--ch-s2:#eb6834;--ch-s3:#1baf7a;--ch-s4:#eda100;--ch-s5:#e87ba4}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--ch-s1:#3987e5;--ch-s2:#d95926;--ch-s3:#199e70;--ch-s4:#c98500;--ch-s5:#d55181}}
:root[data-theme="dark"]{--ch-s1:#3987e5;--ch-s2:#d95926;--ch-s3:#199e70;--ch-s4:#c98500;--ch-s5:#d55181}
.stage{--ch-ink:var(--stage-ink);--ch-muted:var(--stage-muted);--ch-grid:var(--stage-line);--ch-surface:var(--stage-2);
  --ch-s1:#3987e5;--ch-s2:#d95926;--ch-s3:#199e70;--ch-s4:#c98500;--ch-s5:#d55181}
.act-ico .curve{fill:none;stroke:#f0b44c;stroke-width:2.6;stroke-linecap:round}

.rlch{width:100%;height:auto;display:block;overflow:visible}
.rlch text{font-family:var(--f-body);font-size:13px}
.rlch .ax{fill:var(--ch-muted);font-size:12px}
.rlch .val{fill:var(--ch-ink);font-weight:700;font-size:14px}.rlch .val.sm{font-size:12px}
.rlch .lab{fill:var(--ch-ink);font-weight:700;font-size:14px}.rlch .lab.sm{font-weight:400;font-size:12px}
.rlch .g{stroke:var(--ch-grid);stroke-width:1}
.rlch .base{stroke:var(--ch-muted);stroke-width:1}
.rlch .curve{fill:none;stroke:var(--ch-ink);stroke-width:2;opacity:.7}
.rlch .mk{stroke:var(--ch-ink);stroke-width:2}.rlch .mk.med{stroke-dasharray:5 4}
.rlch .mkl{fill:var(--ch-ink);font-size:12px;font-weight:700}
.rlch .wh{stroke:var(--ch-muted);stroke-width:1.5}
.rlch .box{fill:none;stroke-width:2}.rlch .medl{stroke-width:3}
.rlch .dot{opacity:.8;stroke:var(--ch-surface);stroke-width:1.5}
.rlch .meanmk{fill:var(--ch-ink)}
.rlch .ci{stroke:var(--ch-ink);stroke-width:1.5}
.rlch .fit{stroke:var(--ch-ink);stroke-width:2.5}
.rlch .pl{stroke:var(--ch-muted);stroke-width:1.2;opacity:.55}.rlch .pl.down{stroke-dasharray:4 3}
.rlch .bar:hover,.rlch .dot:hover{opacity:1;filter:brightness(1.12)}

/* result panel (teacher pages) */
.res{display:flex;flex-direction:column;gap:12px;min-width:0}
.res .k{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.res-h{display:flex;flex-direction:column;gap:4px;align-items:flex-start}
.res-h b{font-family:var(--f-display);font-size:20px;line-height:1.2}
.res-p{font-family:var(--f-mono);font-size:24px;font-weight:700}
.verdict{border-radius:999px;padding:3px 11px;font-weight:700;font-size:13px}
.verdict.sig{background:var(--accent-soft);color:var(--accent)}
.verdict.ns{border:1px solid var(--line);color:var(--muted)}
.res-t{border-collapse:collapse;width:100%;font-size:14px}
.res-t th{text-transform:none;letter-spacing:0;font-size:inherit;border-bottom:1px solid var(--line);text-align:left;font-weight:400;color:var(--muted);padding:4px 10px 4px 0;vertical-align:top;width:45%}
.res-t td{font-family:var(--f-mono);font-size:13px;padding:4px 0;overflow-wrap:anywhere}
.why ul{margin:4px 0 0;padding-left:18px;font-size:14px}.why li{margin:3px 0}
.sent p{margin:4px 0 8px;font-size:15px;line-height:1.5;background:var(--surface-2);border-left:3px solid var(--accent);padding:10px 12px;border-radius:6px}

/* module home */
.st-two{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:900px){.st-two{grid-template-columns:1fr}}
.st-h{font-size:22px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:flex;flex-direction:column;align-items:flex-start;text-align:left;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:7px 11px;font-weight:700;font-size:13px;color:var(--ink)}
.chip span{font-weight:400;font-size:11.5px;color:var(--muted)}
.chip:hover{border-color:var(--accent)}
.st-vars{display:flex;flex-direction:column;gap:12px}
.st-var{border:1px solid var(--line);border-radius:12px;padding:10px 14px 14px;margin:0;display:flex;flex-direction:column;gap:10px;min-width:0}
.st-var .grid2{grid-template-columns:1fr 2fr}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.st-design{background:var(--accent-soft);border-radius:10px;padding:10px 12px;margin:0;font-size:14px}
.st-private{font-size:13px;color:var(--good);font-weight:700;margin:0}
.st-list{margin:4px 0 0;padding-left:18px;color:var(--muted);font-size:14px;display:flex;flex-direction:column;gap:3px}
.st-list b{color:var(--ink)}
.st-saved{display:flex;flex-direction:column;gap:6px}
.st-sv{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:8px}

/* analyser */
.page.wide{max-width:1280px}
.st-vartab summary{cursor:pointer}
.st-vartab[open] summary{margin-bottom:8px}
.tabs{display:flex;gap:2px;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.tab{background:none;border:0;padding:10px 14px;font-weight:700;color:var(--muted);border-bottom:3px solid transparent;margin-bottom:-1px}
.tab.on{color:var(--ink);border-bottom-color:var(--accent)}
.st-panel{margin-top:-8px}
.an-form{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end}
.an-form .field{flex:1 1 200px;max-width:340px}
.an-form.t1form .field{max-width:none}
.an-out{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px;margin-top:14px}
@media (max-width:900px){.an-out{grid-template-columns:1fr}}
.an-chart{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:12px;align-self:start;min-width:0}
.tscroll{overflow-x:auto;max-width:100%}
.dt{border-collapse:collapse;width:100%;font-size:14px}
.dt th,.dt td{padding:6px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.dt thead th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.dt td{font-variant-numeric:tabular-nums}
.dt.sm{font-size:13px;margin-bottom:6px}
.t1 tr.hd td:first-child{font-weight:700}
.t1 tr.sub td:first-child{color:var(--muted)}
.t1 td:not(:first-child),.t1 th:not(:first-child){white-space:nowrap}
.t1-vars{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:14px}
.t1-vars label{display:inline-flex;gap:6px;align-items:center}
.t1note{max-width:100ch;margin-top:8px}

/* projector */
.ststage{gap:1.4cqi}
.st-wrap{flex:1;display:grid;grid-template-columns:minmax(0,1fr) clamp(240px,29%,400px);gap:2cqi;min-height:0}
.st-main{display:flex;flex-direction:column;min-height:0;gap:1.2cqi}
.st-chart{flex:1;min-height:0;display:flex;align-items:center;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:14px;padding:1.2cqi}
.st-chart .rlch{width:100%;height:100%;max-height:100%}
.st-sent{font-size:max(14px,1.55cqi);color:var(--stage-ink);margin:0;line-height:1.4;border-left:3px solid var(--accent);padding-left:1.2cqi}
.st-side{display:flex;flex-direction:column;gap:1.2cqi;min-height:0;overflow:auto}
.st-join .qrbox{width:max(84px,8cqi)}
.st-side .ast .k:last-child{font-size:max(11px,1.15cqi);text-transform:none;letter-spacing:0}
.st-resbox:not(:empty){background:var(--stage-2);border:1px solid var(--stage-line);border-radius:12px;padding:1.2cqi 1.4cqi}
.st-hidden{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.8cqi;text-align:center;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:14px;padding:2cqi}
.st-hidden b{font-family:var(--f-mono);font-size:max(56px,11cqi);line-height:1;color:var(--stage-ink)}
.st-hidden .k{font-size:max(13px,1.5cqi);color:var(--stage-muted)}
.st-guess{font-family:var(--f-display);font-size:max(18px,2.4cqi);max-width:36ch;color:var(--stage-ink);margin:1.6cqi 0 0;line-height:1.25}
.st-whybig{flex:1;overflow:auto;background:var(--stage-2);border:1px solid var(--stage-line);border-radius:14px;padding:2cqi}
.stage .res{gap:1cqi;color:var(--stage-ink)}
.stage .res .k{color:var(--stage-muted);font-size:max(11px,1.1cqi)}
.stage .res-h b{font-size:max(16px,1.9cqi)}
.stage .res-p{font-size:max(22px,3.2cqi)}
.stage .res-t{font-size:max(12px,1.25cqi)}
.stage .res-t th{color:var(--stage-muted)}
.stage .res-t td{font-size:max(12px,1.25cqi)}
.stage .verdict{font-size:max(12px,1.3cqi)}
.stage .verdict.sig{background:rgba(44,196,174,.16);color:#5fe0cb}
.stage .verdict.ns{color:var(--stage-muted);border-color:var(--stage-line)}
.stage .st-whybig .res-h b{font-size:max(20px,2.6cqi)}
.stage .st-whybig .res-t,.stage .st-whybig .res-t td,.stage .st-whybig .why ul{font-size:max(14px,1.7cqi)}
.stage .st-whybig .sent p{background:transparent;font-size:max(15px,1.8cqi);color:var(--stage-ink)}
.ctl-sel{display:inline-flex;align-items:center;gap:4px;font-size:13px;color:var(--stage-muted)}
.ctl-sel .in.inline{background:var(--stage);color:var(--stage-ink);border-color:var(--stage-line)}
@media (max-width:760px){.st-wrap{grid-template-columns:1fr}}

/* phone */
.st-opts{display:flex;flex-direction:column;gap:10px}
.st-opt{display:block;width:100%;text-align:left;padding:15px 16px;border-radius:12px;border:2px solid var(--line);background:var(--surface);font-weight:700;font-size:17px;color:var(--ink)}
.st-opt[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft)}
.in-unit{display:flex;align-items:center;gap:10px}.in-unit .in{flex:1}.in-unit span{font-weight:700;color:var(--muted)}
.st-join .pin{white-space:nowrap;font-size:max(22px,2.9cqi)}
.st-join .url{font-size:max(13px,1.5cqi)}
.st-count{flex-direction:row;align-items:baseline;justify-content:space-between;padding:.8cqi 1.4cqi}
.st-count b{font-size:max(24px,3.2cqi)}
.stage .res-t th{text-transform:none;letter-spacing:0;font-weight:400}
.stage .st-resbox .res-p{font-size:max(20px,2.6cqi)}
.stage .st-resbox .res-t{display:none}
.res-t td{border-bottom:1px solid var(--line)}
.stage .res-t th,.stage .res-t td{border-bottom-color:var(--stage-line)}
.res-t,.dt.sm{min-width:0}
.dt.t1{min-width:560px}
.stage .st-resbox .sent{display:none}

/* statistics home: three tools */
.st-acts{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:980px){.st-acts{grid-template-columns:1fr}}
.act-card{position:relative}
.act-num{position:absolute;top:22px;right:24px;font-family:var(--f-mono);font-weight:700;font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:999px;width:28px;height:28px;display:grid;place-items:center}
.act-ico .ring{fill:none;stroke:#5fd4c2;stroke-width:3}
.st-livelink{flex-direction:row;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.st-livewrap{max-width:780px}
.stepn{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-family:var(--f-mono);font-size:14px;margin-right:6px;vertical-align:2px}
.sec-h{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.tblh{font-size:16px;margin:8px 0 2px}
.warnline{font-size:12px;color:var(--warn);margin-top:4px}
.warnbox{background:color-mix(in srgb,var(--warn) 12%,transparent);border:1px solid var(--warn);border-radius:10px;padding:10px 12px;margin:0;font-size:14px}

/* sample size */
.ss-wrap{display:grid;grid-template-columns:260px minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:820px){.ss-wrap{grid-template-columns:1fr}}
.ss-designs{display:flex;flex-direction:column;gap:6px}
@media (max-width:820px){.ss-designs{flex-direction:row;overflow-x:auto}.ss-d{min-width:190px}}
.ss-d{text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;display:flex;flex-direction:column;gap:2px;color:var(--ink)}
.ss-d b{font-size:15px}.ss-d span{font-size:12.5px;color:var(--muted)}
.ss-d.on{border-color:var(--accent);background:var(--accent-soft)}
.ss-main{gap:14px}
.ss-main .field small{font-size:12px}
.grid3 .field{min-width:0}
@media (max-width:640px){.grid3{grid-template-columns:1fr}}
.ss-out{border-top:1px solid var(--line);padding-top:14px;display:flex;flex-direction:column;gap:14px}
.ss-big{display:flex;gap:28px;flex-wrap:wrap}
.ss-big div{display:flex;flex-direction:column}
.ss-big b{font-family:var(--f-display);font-size:48px;line-height:1;font-variant-numeric:tabular-nums}
.ss-big span{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.06em;font-weight:700}
.workings ol{margin:4px 0 0;padding-left:20px;font-family:var(--f-mono);font-size:13px;line-height:1.8}
.workings .k,.sent .k{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.workings p{margin:2px 0 0}

/* basic analysis */
.colpick tr.on td{background:var(--accent-soft)}
.colpick td{vertical-align:middle}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;white-space:nowrap}
.seg label{padding:4px 10px;font-size:13px;cursor:pointer;display:inline-flex;gap:5px;align-items:center}
.seg label:has(input:checked){background:var(--accent);color:var(--accent-ink);font-weight:700}
.seg input{accent-color:var(--accent-ink);margin:0}
.freqgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.dt.freq{min-width:0}
.dt.freq caption{text-align:left;font-weight:700;font-family:var(--f-display);font-size:15px;padding:4px 0 6px}
.dt tr.tot td{font-weight:700;border-top:2px solid var(--line)}
.dt tr.miss td{color:var(--muted)}
.dt .mono{font-family:var(--f-mono);font-size:13px}
#assocTable{min-width:640px}
.sigrow td{background:color-mix(in srgb,var(--accent) 9%,transparent)}
.sigp{font-weight:700}
.assoc-list{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.assoc-d{border:1px solid var(--line);border-radius:10px;padding:8px 12px;background:var(--surface-2)}
.assoc-d summary{cursor:pointer;font-size:14px}
.assoc-body{display:flex;flex-direction:column;gap:10px;padding-top:10px}
.howto{font-size:14px;color:var(--muted)}.howto summary{cursor:pointer;font-weight:700}.howto ul{margin:6px 0 0;padding-left:18px}

/* regression */
.refpick{display:inline-block;margin:6px 14px 0 0;font-size:14px}
.reg-out{display:flex;flex-direction:column;gap:14px;margin-top:16px}
.reg-sum{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px}
.reg-sum>div{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:2px}
.reg-sum .k{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.reg-sum b{font-family:var(--f-mono);font-size:20px}

/* chart download + builder */
.ch-export{--ch-ink:#111111;--ch-muted:#555555;--ch-grid:#e2e2e2;--ch-surface:#ffffff;color-scheme:light}
.rlch .inbar{fill:#ffffff;font-weight:700}
.rlch .hm{fill:var(--ch-ink);font-family:var(--f-mono)}.rlch .hm-dark{fill:#ffffff;font-family:var(--f-mono);font-weight:700}
.chartbox{display:flex;flex-direction:column;gap:6px}
.chart-dl{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}
.chartbox.big{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:12px;max-width:900px}
.cb-types{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px;margin-bottom:12px}
.cb-t{text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:10px;padding:8px 10px;display:flex;flex-direction:column;gap:1px;color:var(--ink)}
.cb-t b{font-size:14px}.cb-t span{font-size:12px;color:var(--muted)}
.cb-t.on{border-color:var(--accent);background:var(--accent-soft)}
.cb-out{margin-top:12px}
.fb-wish.inl{align-self:flex-end;padding-bottom:10px}
.seg.big{margin-bottom:12px;flex-wrap:wrap;white-space:normal;border-radius:12px}
.seg.big label{padding:7px 14px;font-size:14px}

/* cleaning */
.cl-top{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;flex-wrap:wrap}
.cl-kpis{display:flex;gap:10px;flex-wrap:wrap}
.cl-kpis>div{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:8px 12px;display:flex;flex-direction:column;min-width:96px}
.cl-kpis .k{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.cl-kpis b{font-family:var(--f-mono);font-size:20px}
.issues{display:flex;flex-direction:column;gap:8px}
.issue{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center;border:1px solid var(--line);border-left-width:4px;border-radius:10px;padding:10px 12px;background:var(--surface)}
.issue.high{border-left-color:var(--bad)}.issue.med{border-left-color:var(--warn)}.issue.low{border-left-color:var(--muted)}
.issue p{margin:2px 0 0;font-size:13.5px;color:var(--muted);overflow-wrap:anywhere}
.issue .sev{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;border-radius:999px;padding:3px 8px;border:1px solid currentColor}
.issue.high .sev{color:var(--bad)}.issue.med .sev{color:var(--warn)}.issue.low .sev{color:var(--muted)}
@media (max-width:700px){.issue{grid-template-columns:1fr}.issue .sev{justify-self:start}}
.all-clean{background:var(--accent-soft);border-radius:10px;padding:12px;margin:0}
.missbars{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:4px 18px}
.mb{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(60px,1fr) auto;gap:8px;align-items:center;font-size:13px}
.mb-n{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mb-bar{height:8px;background:var(--surface-2);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.mb-bar i{display:block;height:100%;background:var(--warn)}
.mb-v{font-family:var(--f-mono);font-size:12px;color:var(--muted);min-width:70px;text-align:right}
.ctools{display:flex;flex-direction:column;gap:8px}
.ctool{border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.ctool summary{cursor:pointer;padding:10px 14px;display:flex;flex-direction:column;gap:1px}
.ctool summary b{font-size:15px}
.ctool[open] summary{border-bottom:1px solid var(--line)}
.ctool-b{padding:12px 14px;display:flex;flex-direction:column;gap:10px}
.ctool-b .dt input.in{padding:5px 8px;font-size:14px}
.dt.recode{max-width:720px}
.dt tr.grp td{border-top:2px solid var(--line)}
.cl-log{margin:0;padding-left:22px;font-size:14px;display:flex;flex-direction:column;gap:3px}
.nowrap{white-space:nowrap}
#corrTable td{text-align:center}#corrTable td:first-child{text-align:left}
.ctool-b > .btn{align-self:flex-start}

/* ======================= forms: respondent (phone) ======================= */
.form-app{font-family:var(--f-body),"Noto Sans Telugu","Noto Sans Devanagari",sans-serif;gap:14px;padding-bottom:40px}
.f-head h1{font-size:26px;font-weight:800;line-height:1.2}
.f-head p{margin:6px 0 0;color:var(--muted)}
.f-prev{background:var(--accent-soft);border-radius:8px;padding:6px 10px;color:var(--ink)!important;font-size:13px}
.f-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px}
.f-card.bad{border-color:var(--bad);box-shadow:0 0 0 1px var(--bad)}
.f-sec{background:var(--accent-soft);border-color:transparent}.f-sec h2{font-size:20px}
.f-q{font-weight:700;font-size:17px;line-height:1.35;color:var(--ink)}
.f-req{color:var(--bad)}
.f-help{font-size:14px;color:var(--muted)}
.f-img{max-width:100%;border-radius:10px}
.f-info h3{font-size:18px}.f-info p{color:var(--ink)!important}
.f-err{color:var(--bad)!important;font-weight:700;font-size:14px;margin:0}
.f-opts{display:flex;flex-direction:column;gap:8px}
.f-opts.row{flex-direction:row;flex-wrap:wrap}
.f-opt{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:13px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface-2);font-size:16px;color:var(--ink);min-height:48px}
.f-opts.row .f-opt{width:auto;flex:1 1 30%}
.f-opt.sm{padding:9px 11px;font-size:14px;min-height:40px}
.f-opt .mark{flex:none;width:20px;height:20px;border:2px solid var(--muted);border-radius:50%;display:grid;place-items:center}
.f-opt.chk .mark{border-radius:5px}
.f-opt[aria-checked="true"]{border-color:var(--accent);background:var(--accent-soft);font-weight:700}
.f-opt[aria-checked="true"] .mark{border-color:var(--accent);background:var(--accent)}
.f-opt.rad[aria-checked="true"] .mark{box-shadow:inset 0 0 0 3px var(--surface-2)}
.f-opt.chk[aria-checked="true"] .mark::after{content:"✓";color:var(--accent-ink);font-size:13px;font-weight:800}
.f-other{margin-top:2px}
.f-scale-row{display:flex;gap:6px;flex-wrap:wrap}
.f-sc{flex:1 1 0;min-width:40px;min-height:46px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface-2);font-weight:700;font-size:16px;color:var(--ink)}
.f-sc[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.f-scale-lab{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:4px;gap:10px}
.f-stars{display:flex;gap:4px}
.f-star{font-size:36px;line-height:1;background:none;border:0;color:var(--line);padding:2px}
.f-star[aria-pressed="true"]{color:#e0a000}
.f-grid{display:flex;flex-direction:column;gap:14px}
.f-grow-t{font-weight:700;margin-bottom:6px;font-size:15px}
.f-gps .ok{color:var(--good)!important;font-weight:700}
.f-photo img{max-width:100%;border-radius:10px;display:block;margin-bottom:8px}
.f-file{cursor:pointer}
.f-sign canvas{width:100%;height:auto;aspect-ratio:600/220;border:1.5px dashed var(--muted);border-radius:10px;background:#fff;touch-action:none}
.f-sign .row{justify-content:space-between;margin-top:6px}
.f-actions{display:flex;justify-content:space-between;gap:12px;margin-top:4px}
.f-actions.col{flex-direction:column}
.f-actions .btn{flex:1}
.f-prog{height:6px;background:var(--line);border-radius:999px;overflow:hidden}
.f-prog i{display:block;height:100%;background:var(--accent);transition:width .3s}
.f-pageno{text-align:center}
.lang-pick{display:flex;flex-direction:column;gap:10px;width:100%;max-width:320px}
.lang-pick .btn{justify-content:space-between}
.f-lang{max-width:150px}

/* ======================= forms: teacher ======================= */
.fm-page{max-width:900px}
.fm-new{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.fm-tpl{text-align:left;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:3px;color:var(--ink)}
.fm-tpl b{font-size:15px}.fm-tpl span{font-size:13px;color:var(--muted)}
.fm-tpl:hover{border-color:var(--accent)}
.fm-tpl.strong{border-color:var(--accent);background:var(--accent-soft)}
.fm-status{font-size:12px;font-weight:700;border-radius:999px;padding:2px 9px;border:1px solid var(--line);color:var(--muted);display:inline-block;width:max-content}
.fm-status.on{border-color:var(--good);color:var(--good)}
.fm-status.paused{border-color:var(--warn);color:var(--warn)}
.fm-save{font-size:12px;color:var(--muted);margin-left:8px}.fm-save.bad{color:var(--bad);font-weight:700}
.pill{font-family:var(--f-mono);font-size:12px;background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:0 7px;margin-left:4px}
.fm-langbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;position:sticky;top:0;z-index:5;background:var(--bg);padding:8px 0}
.chip.on{border-color:var(--accent);background:var(--accent-soft)}
.fm-guide{font-size:12px;color:var(--muted);margin-top:3px;display:block}
.fm-tin{display:flex;flex-direction:column;flex:1;min-width:0}
.in.big{font-size:17px;font-weight:700}
.fm-items{display:flex;flex-direction:column;gap:12px}
.fm-q{gap:10px;border-left:4px solid var(--line)}
.fm-q:focus-within{border-left-color:var(--accent)}
.fm-q.has-logic{border-left-color:var(--warn)}
.fm-secq{background:var(--accent-soft);border-left-color:var(--accent)}
.fm-qhead{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.fm-qn{font-family:var(--f-mono);font-weight:700;font-size:13px;color:var(--muted);min-width:32px}
.fm-req{display:inline-flex;gap:6px;align-items:center;font-size:13px;color:var(--muted)}
.fm-tools{margin-left:auto;display:flex;gap:4px}
.icon{background:var(--surface-2);border:1px solid var(--line);border-radius:8px;width:30px;height:30px;display:grid;place-items:center;color:var(--ink);font-size:14px;padding:0}
.icon:disabled{opacity:.35}
.icon.danger{color:var(--bad)}
.fm-opts{display:flex;flex-direction:column;gap:6px}
.fm-opt{display:flex;align-items:flex-start;gap:8px}
.fm-opt .in{padding:7px 10px;font-size:14px}
.fm-opt .mk{flex:none;width:16px;height:16px;border:2px solid var(--muted);border-radius:50%;margin-top:9px}
.fm-opt .mk.check{border-radius:4px}.fm-opt .mk.drop{border-radius:3px;border-width:0;background:var(--line)}
.fm-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;font-size:14px}
.in.inline.num{width:80px}
.fm-g2{grid-template-columns:1fr 1fr}
@media (max-width:640px){.fm-g2{grid-template-columns:1fr}}
.fm-thumb{max-width:120px;max-height:90px;border-radius:8px;border:1px solid var(--line)}
.fm-thumb.big{max-width:320px;max-height:240px}
.fm-logic{background:color-mix(in srgb,var(--warn) 9%,var(--surface));border:1px solid var(--warn);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:8px;font-size:14px}
.fm-cond{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.fm-cond select.in.inline{max-width:280px}
.fm-add{}
.fm-addrow{display:flex;flex-wrap:wrap;gap:6px}
.fm-set .st-h{font-size:18px}
.fm-share{flex-direction:row;gap:20px;flex-wrap:wrap;align-items:flex-start}
.fm-qr{width:220px;background:#fff;border-radius:10px;padding:8px;line-height:0}.fm-qr svg{width:100%;height:auto}
.fm-share-b{flex:1;min-width:260px;display:flex;flex-direction:column;gap:10px}
.fm-link{display:flex;gap:8px}.fm-link .in{font-size:13px}
.fm-qrfull{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:100;display:grid;place-items:center}
.fm-qrfull>div{background:#fff;border-radius:16px;padding:20px;width:min(90vw,80vh);display:flex;flex-direction:column;gap:10px;align-items:center;color:#111}
.fm-qrfull svg{width:100%;height:auto}
.fm-bar{display:inline-block;width:120px;height:8px;background:var(--surface-2);border:1px solid var(--line);border-radius:4px;overflow:hidden;vertical-align:middle}
.fm-bar i{display:block;height:100%;background:var(--accent)}
.fm-csvopt{font-size:13px}
.fm-nav{align-items:center}
.fm-ind{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:6px 16px;margin:10px 0 0}
.fm-ind dt{font-weight:700;font-size:14px}.fm-ind dd{margin:0;font-size:14px;overflow-wrap:anywhere}
@media (max-width:640px){.fm-ind{grid-template-columns:1fr}}
.fm-table .dt{min-width:700px}
.fm-sum{border-top:1px solid var(--line);padding:12px 0;display:flex;flex-direction:column;gap:6px}
.fm-sum h3{font-size:16px}
.fm-bars{display:flex;flex-direction:column;gap:5px}
.fm-b{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(80px,2fr) auto;gap:10px;align-items:center;font-size:14px}
.fm-bb{height:14px;background:var(--surface-2);border-radius:4px;overflow:hidden}
.fm-bb i{display:block;height:100%;background:var(--ch-s1);border-radius:0 4px 4px 0}
.fm-bv{font-family:var(--f-mono);font-size:12px;color:var(--muted);min-width:76px;text-align:right}
.fm-num{font-family:var(--f-mono);font-size:13px;margin:0}
.fm-chart{max-width:560px}
.fm-thumbs{display:flex;gap:8px;flex-wrap:wrap}
.fm-texts{margin:0;padding-left:18px;font-size:14px;display:flex;flex-direction:column;gap:3px}

/* ======================= assignments ======================= */
.as-meta{display:flex;gap:6px 14px;flex-wrap:wrap;font-size:13px}
.as-meta span{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:2px 10px;color:var(--ink)}
.as-roll{border-color:var(--accent)}
.as-rollin{font-size:24px!important;letter-spacing:.12em}
.as-qh{display:flex;justify-content:space-between;align-items:center;gap:8px}
.as-qn{font-family:var(--f-mono);font-weight:700;color:var(--muted)}
.as-mk{font-size:12px;font-weight:700;border:1px solid var(--line);border-radius:999px;padding:1px 8px;color:var(--muted)}
.as-let{font-family:var(--f-mono);color:var(--muted);margin-right:4px}
.as-count{text-align:right}
.as-confirm{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:50;display:grid;place-items:center;padding:16px}
.as-cbox{background:var(--surface);border-radius:16px;padding:20px;max-width:420px;width:100%;display:flex;flex-direction:column;gap:10px}
.as-cbox h2{font-size:22px}
.as-score{align-items:center;text-align:center}
.as-score b{font-family:var(--f-display);font-size:44px;line-height:1}.as-score small{font-size:20px;color:var(--muted)}
.as-score .k,.as-line .k{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700;display:block}
.as-comment{color:var(--ink)!important}
.as-res{border-left-width:4px}.as-res.full{border-left-color:var(--good)}.as-res.zero{border-left-color:var(--bad)}.as-res.part{border-left-color:var(--warn)}
.as-line{margin:0!important;color:var(--ink)!important;font-size:15px}
.as-line.ok{color:var(--good)!important}
.as-line.fb{background:var(--accent-soft);border-radius:8px;padding:8px 10px}
.as-key{display:inline-flex;align-items:center;margin-top:8px}.as-key input{width:18px;height:18px;accent-color:var(--good)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.as-tf{padding:7px 0;font-weight:700}
.as-tools{margin:4px 0 10px}
.as-missing{background:color-mix(in srgb,var(--warn) 10%,transparent);border-radius:8px;padding:8px 10px;margin:0;font-size:14px}
.as-late{color:var(--warn);font-weight:700;font-size:12px}
.as-ok{color:var(--good);font-weight:700}
.as-ov{min-width:560px}
.as-mark{border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:6px;background:var(--surface);margin-bottom:10px}
.as-qt{font-weight:700}
.as-ans{background:var(--surface-2);border-radius:8px;padding:8px 10px;white-space:pre-wrap;overflow-wrap:anywhere;display:flex;gap:10px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.as-photo{max-width:100%;max-height:420px;border-radius:8px;border:1px solid var(--line)}
.as-photo.sm{max-height:140px}
.as-auto{font-size:12px;font-weight:700;border-radius:999px;padding:1px 8px;white-space:nowrap}
.as-auto.ok{color:var(--good);border:1px solid var(--good)}.as-auto.no{color:var(--bad);border:1px solid var(--bad)}.as-auto.chk{color:var(--warn);border:1px solid var(--warn)}
.as-keyline{margin:0}
.as-grade{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:center}
@media (max-width:640px){.as-grade{grid-template-columns:1fr}}
.as-byq{display:flex;flex-direction:column;gap:8px;margin:10px 0}
.as-byq-row{display:grid;grid-template-columns:60px minmax(0,2fr) 90px minmax(0,1.3fr);gap:10px;align-items:start;border-top:1px solid var(--line);padding-top:8px}
@media (max-width:760px){.as-byq-row{grid-template-columns:50px 1fr}.as-byq-row .in{grid-column:2}}

/* ======================= Presenter: slide rendering (dk-*) ======================= */
.dk-player{position:relative;overflow:hidden;background:#000;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.dk-view{position:absolute;left:0;top:0;transform-origin:0 0}
.dk-layers,.dk-layer,.dk-over{position:absolute;inset:0}
.dk-layer{overflow:hidden;background:#fff}
.dk-over{pointer-events:none}
.dk-slide{position:relative;overflow:hidden;color:#000;font-family:Calibri,Carlito,Arimo,sans-serif;line-height:1.2;text-align:left;-webkit-font-smoothing:antialiased}
.dk-slide *{box-sizing:border-box}
.dk-el{position:absolute}
.dk-svg{position:absolute;left:0;top:0;overflow:visible}
.dk-tx{position:absolute;display:flex;flex-direction:column;overflow:visible;word-wrap:break-word;overflow-wrap:break-word}
.dk-unflip{position:absolute;inset:0}
.dk-p{margin:0;white-space:pre-wrap}
.dk-bu{display:inline-block;text-indent:0;white-space:nowrap}
.dk-grpin{position:absolute;left:0;top:0;transform-origin:0 0}
.dk-pic{overflow:hidden}
.dk-pic img{display:block;pointer-events:none;-webkit-user-drag:none;user-select:none}
.dk-missing{background:repeating-linear-gradient(45deg,#e7e7e7 0 8px,#f3f3f3 8px 16px);border:1px dashed #aaa;display:flex;align-items:center;justify-content:center;font:12px/1.3 Arimo,sans-serif;color:#555;text-align:center}
.dk-tbl{border-collapse:collapse;table-layout:fixed}
.dk-tbl td{padding:0;overflow:hidden}
.dk-cell{display:block}
.dk-flash{position:absolute;inset:0;background:#fff;pointer-events:none}
.dk-thumb{position:relative;overflow:hidden;background:#fff}
.dk-thumb .dk-view{transform-origin:0 0}
.dk-av video,.dk-av audio{display:block}
/* sign-in box */
.au{display:flex;flex-direction:column;gap:12px}
.au-g{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.au-or{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}
.au-or::before,.au-or::after{content:"";flex:1;height:1px;background:var(--line)}
.au-f{display:flex;flex-direction:column;gap:10px}
.au-l{display:flex;flex-direction:column;gap:4px;font-size:13px;font-weight:700;color:var(--muted)}
.au-l .in{font-weight:400;color:var(--ink)}
.au-pw{position:relative;display:block}
.au-pw .in{width:100%;padding-right:62px}
.au-eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:none;color:var(--accent);font-weight:700;font-size:13px}
.au-err{color:var(--bad);margin:0;min-height:1em;font-size:14px}.au-err.ok{color:var(--good)}
.au-sw{margin:0;font-size:14px;color:var(--muted)}
.au-hint,.au-note{margin:0;font-size:13px;color:var(--muted)}
/* Presenter: teacher library (dh-*) */
.dh-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 16px}
.dh-steps div{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;gap:10px;font-size:14px}
.dh-steps b{flex:none;width:26px;height:26px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-size:14px}
@media (max-width:760px){.dh-steps{grid-template-columns:1fr}}
.dh-drop{display:flex;flex-direction:column;gap:4px;align-items:center;text-align:center;border:2px dashed var(--line);border-radius:14px;padding:26px 16px;background:var(--surface);cursor:pointer;margin-bottom:12px}
.dh-drop b{font-size:17px;color:var(--accent)}.dh-drop span{font-size:13px;color:var(--muted);max-width:560px}
.dh-drop:hover,.dh-drop.on{border-color:var(--accent);background:var(--accent-soft)}
.dh-prog{display:flex;flex-direction:column;gap:6px;margin:6px 0 12px;font-size:14px;color:var(--muted)}
.dh-bar{height:8px;border-radius:5px;background:var(--line);overflow:hidden}.dh-bar i{display:block;height:100%;background:var(--accent);transition:width .2s}
.dh-title{font-family:var(--f-display);font-size:24px;font-weight:800;margin-top:6px;padding:6px 10px;background:transparent;border-color:transparent}
.dh-title:hover,.dh-title:focus{border-color:var(--line);background:var(--surface)}
.dh-warn{background:#fff6e6;border:1px solid #f0c674;color:#5a3d00;border-radius:12px;padding:12px 16px;margin-bottom:14px;font-size:14px}
.dh-warn ul{margin:6px 0;padding-left:20px}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .dh-warn{background:#2d2310;border-color:#6b5420;color:#f3dfb4}}
.dh-set,.dh-share{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:14px;display:flex;flex-direction:column;gap:10px}
.dh-set .field{max-width:320px}
.dh-chk{display:flex;gap:8px;align-items:center;font-size:14px}
.in.sm{padding:6px 9px;font-size:14px;border-radius:8px}
.dh-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.dh-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.dh-card.hid .dh-th{opacity:.45}
.dh-thw{border:0;padding:0;background:#000;position:relative;display:block;width:100%}
.dh-th{width:100%;pointer-events:none}
.dh-no{position:absolute;left:6px;top:6px;background:rgba(0,0,0,.65);color:#fff;font-size:12px;font-weight:700;padding:1px 7px;border-radius:6px}
.dh-meta{padding:10px 12px;display:flex;flex-direction:column;gap:7px;font-size:13px}
.dh-meta label{display:flex;flex-direction:column;gap:3px;font-weight:700;color:var(--muted)}
.dh-meta .dh-chk{flex-direction:row;font-weight:400;color:var(--ink)}
.dh-meta summary{cursor:pointer;font-weight:700;color:var(--muted)}
.dh-meta textarea{margin-top:6px;font-size:13px}
.dh-sh{display:flex;gap:14px;align-items:flex-start;border-top:1px solid var(--line);padding-top:10px}
.dh-sh.old{opacity:.6}
.dh-sh>div:last-child{display:flex;flex-direction:column;gap:6px;flex:1;min-width:0}
.dh-qr{width:96px;flex:none}.dh-qr svg{width:100%;height:auto;background:#fff;border-radius:6px}
.dh-reh{position:fixed;inset:0;z-index:100;background:#000;display:flex;flex-direction:column}
.dh-reh-p{flex:1;position:relative}
.dh-reh-bar{display:flex;gap:8px;align-items:center;justify-content:center;padding:6px;background:#111;color:#ddd;font-size:14px}
.dh-reh-bar button{background:#2a2a2a;color:#fff;border:0;border-radius:6px;padding:6px 12px}
/* ======================= Presenter: present.html (pr-*, rm-*, pv-*) ======================= */
.pr-body{background:var(--bg)}
.pr-app{min-height:100vh}
.pr-loading{padding:40px;text-align:center;color:var(--muted)}
.pr-card{max-width:760px;margin:6vh auto;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px 24px;display:flex;flex-direction:column;gap:14px}
.pr-narrow{max-width:440px}
@media (max-width:520px){.pr-card{margin:0;border-radius:0;border:0;min-height:100vh;padding:22px 16px}}
.pr-card h1{font-size:24px}
.pr-sub{margin:0;color:var(--muted)}
.pr-brand{font-family:var(--f-display);font-weight:800;font-size:20px;color:var(--ink)}.pr-brand span{color:var(--accent)}
.pr-brand.big{font-size:30px}
.pr-decks{display:flex;flex-direction:column;gap:8px}
.pr-deck{text-align:left;border:1.5px solid var(--line);background:var(--surface-2);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:2px;color:var(--ink)}
.pr-deck b{font-size:16px}.pr-deck span{font-size:13px;color:var(--muted)}
.pr-deck:hover,.pr-deck:focus-visible{border-color:var(--accent)}
.pr-codef{display:flex;gap:8px}.pr-codef .in{flex:1;font-size:20px;letter-spacing:.08em}
.mono{font-family:var(--f-mono)}
/* pairing screen */
.pr-pair{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:5vw;align-items:center;padding:6vh 7vw;background:var(--stage);color:var(--stage-ink)}
.pr-pair .pr-brand{color:var(--stage-ink)}
.pr-pair h1{font-size:clamp(28px,3.4vw,52px);margin:18px 0 10px}
.pr-steps{font-size:clamp(16px,1.5vw,22px);line-height:1.6;padding-left:1.2em;margin:0 0 18px;color:var(--stage-ink)}
.pr-code{font-size:clamp(14px,1.2vw,18px);color:var(--stage-muted)}
.pr-code b{color:var(--stage-ink)}.pr-code .mono{font-size:1.4em;letter-spacing:.1em;background:var(--stage-2);padding:2px 10px;border-radius:8px}
.pr-sec{color:var(--stage-muted);font-size:14px}
.pr-pair .btn.ghost{color:var(--stage-ink);border-color:var(--stage-line)}
.pr-pair-r{display:flex;flex-direction:column;align-items:center;gap:10px}
.pr-qrbox{background:#fff;border-radius:22px;padding:18px;width:min(42vw,68vh)}
.pr-qrbox svg{width:100%;height:auto;display:block}
.pr-exp{color:var(--stage-muted);font-size:13px}
.pr-demo-note{position:fixed;left:12px;bottom:8px;font-size:12px;color:#ccc}
.pr-demo-note a{color:#7fe3d3}
@media (max-width:800px){.pr-pair{grid-template-columns:1fr}.pr-qrbox{width:min(80vw,420px)}}
/* presenting */
.pr-screen{position:fixed;inset:0;background:#000;overflow:hidden;cursor:default}
.pr-screen:not(.show){cursor:none}
.pr-screen[data-tool="pen"],.pr-screen[data-tool="hl"]{cursor:crosshair}
.pr-screen[data-tool="laser"],.pr-screen[data-tool="spot"]{cursor:none}
.pr-screen[data-tool="zoom"]{cursor:zoom-in}
.pr-zoom{position:absolute;inset:0;transition:transform .35s ease}
.pr-zoom.on{transform:scale(2.2)}
.pr-stage{position:absolute;inset:0}
.pr-ink{position:absolute;left:0;top:0;overflow:visible}
.pr-laser{position:absolute;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;background:radial-gradient(circle,#ff2d2d 0 35%,rgba(255,40,40,.55) 55%,rgba(255,40,40,0) 72%);box-shadow:0 0 14px 4px rgba(255,30,30,.6);transition:left .07s linear,top .07s linear;pointer-events:none}
.pr-cover{position:absolute;inset:0;z-index:5}.pr-cover.k{background:#000}.pr-cover.w{background:#fff}
.pr-board{position:absolute;inset:0;background:#fff;z-index:4}
.pr-board svg{width:100%;height:100%}
.pr-spot{position:absolute;inset:0;z-index:6;pointer-events:none;background:rgba(0,0,0,.78)}
.pr-stqr{position:absolute;right:2.5vw;top:3vh;z-index:7;background:#fff;color:#111;border-radius:16px;padding:14px;width:min(26vw,320px);box-shadow:0 10px 40px rgba(0,0,0,.4);text-align:center}
.pr-stqr svg{width:100%;height:auto}.pr-stqr p{margin:6px 0 0;font:600 14px/1.3 var(--f-body)}
.pr-wm{position:absolute;right:12px;bottom:8px;z-index:3;font:12px var(--f-body);color:rgba(128,128,128,.75);pointer-events:none;text-shadow:0 0 2px rgba(255,255,255,.4)}
.pr-endcard{position:absolute;inset:0;z-index:8;background:#000;color:#aaa;display:flex;flex-direction:column;align-items:center;justify-content:center;font:20px var(--f-body)}
.pr-endcard span{font-size:14px;color:#666}
.pr-goto{position:absolute;left:50%;top:40%;transform:translate(-50%,-50%);z-index:12;background:rgba(0,0,0,.8);color:#fff;font:700 34px var(--f-mono);padding:14px 26px;border-radius:12px}
.pr-grid{position:absolute;inset:0;z-index:11;background:rgba(10,14,15,.96);overflow:auto;padding:24px}
.pr-grid-in{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.pr-grid button{border:2px solid transparent;background:none;padding:0;color:#ddd;font:600 13px var(--f-body);text-align:left;border-radius:6px;overflow:hidden}
.pr-grid button.cur{border-color:#2cc4ae}.pr-grid button:hover{border-color:#888}
.pr-grid button span{display:block;padding:3px 6px}
.pr-gth{width:100%}
.pr-help{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:13;background:#111c1d;color:#e7f0ee;border-radius:14px;padding:20px 24px;min-width:340px;font:14px var(--f-body);box-shadow:0 20px 60px rgba(0,0,0,.5)}
.pr-help h3{margin:0 0 10px}.pr-help dl{display:grid;grid-template-columns:auto 1fr;gap:5px 18px;margin:0}.pr-help dt{font-family:var(--f-mono);color:#7fe3d3}.pr-help dd{margin:0}
.pr-qrsm{width:220px;background:#fff;border-radius:10px;padding:8px;margin:0 auto}.pr-qrsm svg{width:100%;height:auto;display:block}
.pr-bar{position:absolute;left:50%;bottom:14px;transform:translate(-50%,20px);z-index:10;display:flex;align-items:center;gap:3px;flex-wrap:wrap;justify-content:center;max-width:calc(100vw - 20px);background:rgba(17,24,25,.92);border:1px solid #2b3b3c;border-radius:12px;padding:5px 8px;opacity:0;transition:opacity .25s,transform .25s;pointer-events:none}
.pr-screen.show .pr-bar{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.pr-bar button{background:none;border:0;color:#e7f0ee;font:600 14px var(--f-body);padding:6px 9px;border-radius:8px;min-width:32px}
.pr-bar button:hover{background:#2a3a3b}.pr-bar button.on{background:#0d7468;color:#fff}
.pr-bar .pr-endb{color:#ff8a8a}
.pr-num,.pr-time{color:#c9d6d4;font:600 13px var(--f-mono);padding:0 6px}
.pr-sep{width:1px;height:20px;background:#34484a;margin:0 4px}
.pr-colors{display:inline-flex;gap:3px;align-items:center}
.pr-c{width:18px!important;min-width:18px!important;height:18px;padding:0!important;border-radius:50%!important;border:2px solid transparent!important}
.pr-c.on{border-color:#fff!important;box-shadow:0 0 0 1px #000}
.pr-toast{position:absolute;left:50%;top:18px;transform:translateX(-50%);z-index:14;background:rgba(0,0,0,.78);color:#fff;font:14px var(--f-body);padding:8px 14px;border-radius:9px;opacity:0;transition:opacity .25s;pointer-events:none}
.pr-toast.on{opacity:1}
/* presenter view */
.pv{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:18px;min-height:100vh;padding:18px;background:#0d1617;color:#e7f0ee}
.pv-cur,.pv-next{width:100%;border-radius:6px;overflow:hidden}
.pv-ctl{display:flex;gap:12px;align-items:center;margin-top:12px;flex-wrap:wrap}
.pv-time{font:700 28px var(--f-mono);margin-left:auto}.pv-clock{font:600 18px var(--f-mono);color:#8ea3a1}
.pv-side{display:flex;flex-direction:column;gap:10px;min-height:0}
.pv-side h3{font-size:14px;color:#8ea3a1;margin:0;display:flex;justify-content:space-between}
.pv-notes{flex:1;overflow:auto;background:#152627;border-radius:10px;padding:14px;font-size:20px;line-height:1.5;white-space:pre-wrap}
.pv-endtxt{color:#8ea3a1}
.pv .btn.ghost{color:#e7f0ee;border-color:#2b3b3c}
/* phone remote */
.rm{display:flex;flex-direction:column;gap:10px;padding:10px 12px 30px;max-width:560px;margin:0 auto;min-height:100vh;background:var(--bg)}
.rm-top{display:flex;align-items:center;gap:10px}
.rm-t{flex:1;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rm-time{font:700 15px var(--f-mono);color:var(--muted)}
.rm-end{background:none;border:1.5px solid var(--bad);color:var(--bad);border-radius:9px;padding:5px 12px;font-weight:700}
.rm-prev{position:relative;border-radius:8px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.15);touch-action:none;background:#000}
.rm-prev>div{width:100%}
.rm-ink{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.rm-mode{position:absolute;left:6px;bottom:6px;background:rgba(0,0,0,.65);color:#fff;font-size:12px;padding:2px 8px;border-radius:6px}
.rm-mode:empty{display:none}
.rm-nav{display:grid;grid-template-columns:1fr auto 2fr;gap:10px;align-items:center}
.rm-b{border:0;border-radius:14px;background:var(--surface);color:var(--ink);border:1.5px solid var(--line);font:800 22px var(--f-display);padding:18px 0}
.rm-b.big{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-size:24px}
.rm-b:active{transform:scale(.97)}
.rm-num{font:700 14px var(--f-mono);color:var(--muted);text-align:center}
.rm-tools{display:flex;flex-wrap:wrap;gap:6px}
.rm-tools button{flex:1 1 auto;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:9px 8px;font-weight:700;font-size:14px}
.rm-tools button.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.rm-colors{display:flex;gap:8px;align-items:center}
.rm-colors .pr-c{width:28px!important;height:28px;min-width:28px!important}
.rm-hl{margin-left:auto;font-size:14px;display:flex;gap:6px;align-items:center}
.rm-notes{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 12px}
.rm-nh{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.rm-nh button{border:1px solid var(--line);background:none;border-radius:6px;margin-left:4px;padding:1px 8px;font-weight:700;color:var(--ink)}
#rmNotes{white-space:pre-wrap;line-height:1.5}
.rm-next{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted)}
.rm-next>div{width:42%;border-radius:6px;overflow:hidden}
.rm-stu{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 12px;display:flex;flex-direction:column;gap:4px;font-size:14px}
.rm-q{margin:6px 0 0;font-size:14px}.rm-q span{display:inline-block;font-size:11px;font-weight:700;background:var(--accent-soft);color:var(--accent);border-radius:5px;padding:0 6px;margin-right:6px}
.rm-grid{position:fixed;inset:0;z-index:20;background:var(--bg);overflow:auto;padding:12px}
.rm-gh{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.rm-gh button{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:6px 12px;font-weight:700;color:var(--ink)}
.rm-gg{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.rm-gg button{border:2px solid transparent;background:none;padding:0;text-align:left;border-radius:6px;overflow:hidden;color:var(--ink);font-weight:700;font-size:13px}
.rm-gg button.cur{border-color:var(--accent)}.rm-gg button.hid{opacity:.45}
.rm-gg button>div{width:100%}
.pr-flag{margin:0;padding-left:20px}
/* students */
.st-now{font-size:18px;margin:0}
.st-conf{font-size:18px;padding:16px;background:#b45309}
.st-conf.done{background:var(--good)}
.st-q{display:flex;flex-direction:column;gap:6px}.st-q label{font-weight:700;font-size:14px}
/* student copy viewer */
.pr-shv{position:fixed;inset:0;display:flex;flex-direction:column;background:#111;color:#eee}
.pr-shv-top{display:flex;justify-content:space-between;gap:10px;padding:8px 14px;font-size:14px}
.pr-shv-p{flex:1;position:relative}
.pr-shv-nav{display:flex;justify-content:center;gap:10px;padding:8px}
.pr-shv .btn.ghost{color:#eee;border-color:#444}
.pr-shwm{position:absolute;left:0;top:0;overflow:hidden;display:flex;flex-direction:column;justify-content:space-around;pointer-events:none;z-index:2}
.pr-shwm span{white-space:nowrap;transform:rotate(-18deg);font:700 15px Arimo,sans-serif;color:rgba(120,120,120,.22);margin-left:-20%}
@media print{.pr-body *{display:none!important}.pr-body::after{content:"Printing is turned off for these slides."}}
.dh-share .in.sm,.dh-set .in.sm{width:auto;max-width:100%}
a.btn{text-decoration:none}
.pr-screen:not([data-tool="pen"]):not([data-tool="hl"]) .pr-colors{display:none}
.au-card{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--accent-soft);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:0 0 16px;font-size:14px}
form.au-card{flex-direction:column;align-items:stretch;background:var(--surface)}
.au-card.done{background:var(--surface)}
.au-mail{background:var(--accent-soft);border-radius:12px;padding:12px 14px}.au-mail p{margin:4px 0 0;font-size:14px}
.au-l .au-hint{font-weight:400}

/* home: all activities on one screen */
.acts{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
@media (max-width:700px){.acts{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}}
.act-card{padding:16px;gap:6px;border-radius:14px;align-items:center;text-align:center}
.act-card .act-ico{width:52px;height:52px;border-radius:12px}
.act-card .act-ico svg{width:38px;height:38px}
.act-t{font-size:18px}
.act-d{font-size:13px;line-height:1.35}
@media (max-width:700px){.act-card{padding:12px 8px}.act-t{font-size:16px}.act-d{font-size:12px}}
.act-num{display:none}
@media (max-width:700px){
  .acts{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .act-card{padding:12px 4px;gap:6px}
  .act-card .act-ico{width:46px;height:46px}.act-card .act-ico svg{width:34px;height:34px}
  .act-t{font-size:13px;line-height:1.2}
  .act-d{display:none}
}
.acct-below .au-card{margin:14px 0 0}

/* entry chooser (index.html) */
.ch{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px;background:var(--bg)}
.ch-in{width:100%;max-width:880px;display:flex;flex-direction:column;align-items:center;gap:18px}
.ch-brand{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:800;font-size:28px}
.ch-brand svg{width:40px;height:26px}
.ch-brand .word span{color:var(--accent)}
.ch h1{font-size:clamp(22px,3vw,30px);text-align:center}
.ch-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;width:100%}
.ch-card{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:24px 16px;background:var(--surface);border:1.5px solid var(--line);border-radius:18px;color:var(--ink);text-decoration:none;transition:border-color .15s,transform .15s,box-shadow .15s}
.ch-card:hover,.ch-card:focus-visible{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 14px 30px -22px rgba(0,0,0,.5)}
.ch-card.last{border-color:var(--accent)}
.ch-ico{width:64px;height:64px;border-radius:16px;background:var(--stage);display:grid;place-items:center}
.ch-ico svg{width:42px;height:42px}
.ch-ico .o{fill:none;stroke:#e7f0ee;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.ch-ico .f{fill:#5fd4c2}.ch-ico .f2{fill:none;stroke:#f0b44c;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.ch-t{font-family:var(--f-display);font-weight:800;font-size:21px}
.ch-d{color:var(--muted);font-size:14px;line-height:1.4}
.ch-last{position:absolute;top:10px;right:12px;font-size:11px;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:1px 8px}
.ch-foot{color:var(--muted);font-size:13px;margin:4px 0 0}
@media (max-width:640px){.ch-grid{grid-template-columns:1fr;gap:10px}.ch-card{flex-direction:row;text-align:left;padding:14px;gap:14px;flex-wrap:wrap}.ch-card .ch-t{font-size:18px}.ch-ico{width:52px;height:52px;flex:none}.ch-ico svg{width:34px;height:34px}.ch-card>span:not(.ch-ico):not(.ch-last){flex:1 1 60%}
  .ch-card{display:grid;grid-template-columns:52px 1fr;grid-template-rows:auto auto;column-gap:14px;row-gap:2px}.ch-card .ch-ico{grid-row:1/3}.ch-t,.ch-d{text-align:left}}
/* plans and payments (bl-*) */
.bl-bar{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:12px;padding:10px 14px;margin:0 0 12px;font-size:14px}
.bl-bar.soon{border-left-color:var(--warn)}.bl-bar.end{border-left-color:var(--bad);background:#fff4f4}.bl-bar.pend{border-left-color:var(--warn)}.bl-bar.admin{border-left-color:#6d4bc4}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .bl-bar.end{background:#2a1416}}
.bl-plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:6px 0 10px}
@media (max-width:640px){.bl-plans{grid-template-columns:1fr}}
.bl-plan{position:relative;display:flex;flex-direction:column;align-items:center;gap:2px;padding:18px 12px;background:var(--surface);border:2px solid var(--line);border-radius:14px;color:var(--ink)}
.bl-plan b{font-size:16px}.bl-price{font-family:var(--f-display);font-weight:800;font-size:32px}.bl-per{font-size:13px;color:var(--muted)}
.bl-plan.pop{border-color:var(--accent)}.bl-plan.on{background:var(--accent-soft);border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.bl-plan:disabled{opacity:.5}
.bl-tag{position:absolute;top:-10px;background:var(--accent);color:var(--accent-ink);font-size:11px;font-weight:700;border-radius:999px;padding:1px 10px}
.bl-incl{margin:0 0 14px;padding-left:20px;color:var(--muted);font-size:14px}
.bl-pay{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:18px;margin-bottom:14px}
.bl-step{display:flex;gap:12px}.bl-step>b{flex:none;width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center}
.bl-step>div{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}.bl-step h3{font-size:17px}.bl-step p{margin:0}
.bl-qrrow{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}
.bl-qr{width:190px;flex:none;background:#fff;border-radius:12px;padding:8px;border:1px solid var(--line)}.bl-qr svg{width:100%;height:auto;display:block}
.bl-how{flex:1;min-width:220px;display:flex;flex-direction:column;gap:8px}
.bl-how code{background:var(--surface-2);padding:1px 6px;border-radius:6px}
.bl-f{display:flex;gap:8px;flex-wrap:wrap}.bl-f .in{flex:1;min-width:180px;font-size:20px;letter-spacing:.08em}
.bl-adm-sw{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.bl-adm-sw>div{display:flex;flex-direction:column}.bl-adm-sw.on{border-color:var(--accent)}
.bl-tbl{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:12px}
.bl-tbl table{width:100%;min-width:0;border-collapse:collapse;font-size:14px}
.bl-tbl th,.bl-tbl td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.bl-st{font-size:12px;font-weight:700;border-radius:999px;padding:2px 9px;background:var(--surface-2)}
.bl-st.ok{background:#dcf3e4;color:#11602d}.bl-st.pend{background:#fff1d6;color:#7a4b00}.bl-st.end{background:#fde2e2;color:#8f1d22}
/* business pages (bz-*) */
.bz-body{background:var(--bg)}
.bz-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 18px;background:var(--surface);border-bottom:1px solid var(--line)}
.bz-brand{text-decoration:none;color:var(--ink);display:flex;flex-direction:column;font-family:var(--f-display);font-weight:800;font-size:22px;line-height:1.1}
.bz-brand .word span{color:var(--accent)}.bz-brand small{font:600 12px var(--f-body);color:var(--muted)}
.bz-nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.bz-nav a{color:var(--ink);font-weight:700;text-decoration:none}.bz-nav a.btn{color:var(--accent-ink)}
.bz{max-width:820px;margin:0 auto;padding:26px 18px 40px;line-height:1.65}
.bz h1{font-size:30px;margin-bottom:2px}.bz h2{font-size:20px;margin:22px 0 6px}.bz li{margin:5px 0}
.bz-t{border-collapse:collapse;min-width:0;width:100%;margin:10px 0}.bz-t th,.bz-t td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}.bz-t th{background:var(--surface-2);width:34%}
.bz-foot{border-top:1px solid var(--line);background:var(--surface);padding:18px;text-align:center;font-size:13px;color:var(--muted);line-height:1.6}
.bz-foot nav{display:flex;flex-wrap:wrap;gap:6px 4px;justify-content:center;margin-bottom:8px}.bz-foot a{color:var(--accent);font-weight:700}
.bz-homewrap{background:var(--bg)}
.bz-home{max-width:880px;margin:0 auto;padding:6px 16px 26px;text-align:center}
.bz-home h2{font-size:22px}.bz-home p{color:var(--muted)}
.bz-prices{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin:10px 0}
.bz-prices div{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 18px;display:flex;flex-direction:column;min-width:120px}
.bz-prices span{font-family:var(--f-display);font-weight:800;font-size:24px}
.ch{min-height:auto;padding-top:8vh}