/* Layout: phone-first app shell — sticky top bar, one column of cards, bottom tab bar; quiz screens take the whole view. Admin pages widen on desktop. */
:root{
  --bg:#f5f2ec; --surface:#ffffff; --surface-2:#eeeae2; --line:#e0dbd0;
  --fg:#1d2029; --muted:#686b76; --brand:#f15f22; --brand-deep:#c94a14; --brand-soft:#fde6da;
  --yellow:#ffc531; --yellow-soft:#fff3cf; --ink:#1d2029; --on-ink:#f6f2ea;
  --ok:#1a9a5c; --ok-soft:#dcf3e6; --bad:#d64045; --bad-soft:#fbe2e3; --teal:#1aa594; --violet:#7d63ea;
  --shadow:0 1px 0 rgba(29,32,41,.04),0 6px 18px rgba(29,32,41,.07);
  --display:"Cairo","IBM Plex Sans Arabic",Tahoma,sans-serif;
  --body:"IBM Plex Sans Arabic","Cairo",system-ui,"Segoe UI",Tahoma,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#15171e; --surface:#1f222b; --surface-2:#2a2e39; --line:#353a47;
  --fg:#f3efe7; --muted:#a6a9b5; --brand:#f36b31; --brand-deep:#f15f22; --brand-soft:#3a2419;
  --yellow:#ffc94a; --yellow-soft:#3a321b; --ink:#f3efe7; --on-ink:#1d2029;
  --ok:#3fcf8a; --ok-soft:#173a29; --bad:#ff6b70; --bad-soft:#41222a;
  --shadow:0 6px 18px rgba(0,0,0,.3); color-scheme:dark}}

*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-tap-highlight-color:transparent;padding-bottom:calc(76px + env(safe-area-inset-bottom,0px))}
body.full{padding-bottom:env(safe-area-inset-bottom,0px)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
a{color:var(--brand-deep)}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
h1,h2,h3{font-family:var(--display);margin:0;line-height:1.3;text-wrap:balance}
.num{font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.eyebrow{font-size:.8rem;font-weight:700;color:var(--brand-deep);letter-spacing:.02em}

/* shell */
.top{position:sticky;top:0;z-index:15;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  padding:calc(10px + env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) 10px max(16px,env(safe-area-inset-left,0px));border-bottom:1px solid var(--line)}
.top-in{max-width:720px;margin:0 auto;display:flex;align-items:center;gap:10px}
.logo{color:var(--fg);text-decoration:none;display:flex;align-items:center;gap:8px;font-family:var(--display);font-weight:800;font-size:1.02rem;min-width:0}
.logo img{width:32px;height:32px;border-radius:10px;flex:none}
.logo span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .xp{margin-inline-start:auto;display:flex;align-items:center;gap:6px;flex:none}
.pill{display:inline-flex;align-items:center;gap:4px;border-radius:99px;padding:2px 10px;font-weight:700;font-size:.85rem;white-space:nowrap}
.pill svg{width:16px;height:16px}
.pill.gold{background:var(--yellow-soft);color:#9a6a00}
.pill.fire{background:var(--brand-soft);color:var(--brand-deep)}
.pill.off{background:var(--surface-2);color:var(--muted)}
@media (prefers-color-scheme:dark){.pill.gold{color:var(--yellow)}.pill.fire{color:var(--brand)}}
main{padding:16px max(16px,env(safe-area-inset-right,0px)) 24px max(16px,env(safe-area-inset-left,0px))}
.page{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.page.wide{max-width:1100px}
.tabs{position:fixed;inset:auto 0 0;z-index:15;background:var(--surface);border-top:1px solid var(--line);display:flex;justify-content:center;
  padding:6px max(8px,env(safe-area-inset-right,0px)) calc(6px + env(safe-area-inset-bottom,0px)) max(8px,env(safe-area-inset-left,0px))}
.tabs-in{display:flex;width:100%;max-width:720px}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 4px;border-radius:12px;color:var(--muted);font-size:.75rem;font-weight:700;text-decoration:none}
.tab svg{width:24px;height:24px}
.tab.on{color:var(--brand-deep)}
@media (prefers-color-scheme:dark){.tab.on{color:var(--brand)}}

/* atoms */
.card{background:var(--surface);border-radius:20px;box-shadow:var(--shadow);padding:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 20px;border-radius:14px;font-weight:700;font-size:1rem;background:var(--brand);color:#fff;transition:transform .12s,filter .2s;text-decoration:none}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.5;cursor:default}
.btn.block{width:100%}
.btn.ghost{background:var(--surface-2);color:var(--fg)}
.btn.ink{background:var(--ink);color:var(--on-ink)}
.btn.danger{background:var(--bad-soft);color:var(--bad)}
.btn.danger.sure{background:var(--bad);color:#fff}
.btn.sm{min-height:38px;padding:0 12px;font-size:.88rem;border-radius:11px}
.btn svg{width:20px;height:20px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grow{flex:1;min-width:0}
.field{display:flex;flex-direction:column;gap:6px}
.field label,.field .lbl{font-weight:700;font-size:.95rem}
.field small{color:var(--muted)}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],textarea,select{width:100%;min-height:48px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);padding:10px 12px;font-size:1rem}
textarea{min-height:110px;resize:vertical;line-height:1.6}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:.8}
.err{background:var(--bad-soft);color:var(--bad);border-radius:12px;padding:10px 12px;font-weight:700;font-size:.92rem}
.ok-msg{background:var(--ok-soft);color:var(--ok);border-radius:12px;padding:10px 12px;font-weight:700;font-size:.92rem}
.switch{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;padding:6px 0;font-weight:700;text-align:start}
.sw{width:46px;height:28px;border-radius:99px;background:var(--line);position:relative;flex:none;transition:background .2s}
.sw::after{content:"";position:absolute;top:3px;right:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.switch[aria-checked="true"] .sw{background:var(--ok)}
.switch[aria-checked="true"] .sw::after{transform:translateX(-18px)}
.seg{display:flex;gap:4px;background:var(--surface-2);border-radius:12px;padding:4px}
.seg button{flex:1;min-height:40px;border-radius:9px;font-weight:700;font-size:.9rem;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--fg);box-shadow:var(--shadow)}
.toast{position:fixed;z-index:50;left:50%;top:calc(14px + env(safe-area-inset-top,0px));transform:translate(-50%,-180%);background:var(--ink);color:var(--on-ink);border-radius:14px;padding:10px 16px;font-weight:700;transition:transform .35s;max-width:calc(100% - 32px);display:flex;gap:8px;align-items:center}
.toast.show{transform:translate(-50%,0)}
.toast svg{width:20px;height:20px;color:var(--yellow)}
.empty{text-align:center;color:var(--muted);padding:28px 12px}
.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--brand);animation:spin .8s linear infinite;margin:40px auto}
@keyframes spin{to{transform:rotate(360deg)}}

/* auth */
.auth{max-width:440px;margin:0 auto;display:flex;flex-direction:column;gap:18px;padding-top:12px}
.auth-hero{display:flex;flex-direction:column;gap:10px}
.auth-hero img{width:64px;height:64px;border-radius:18px}
.auth-hero h1{font-size:2rem;font-weight:900;line-height:1.2}
.auth-hero h1 em{font-style:normal;color:var(--brand)}
.auth-hero p{margin:0;color:var(--muted)}
.auth form{display:flex;flex-direction:column;gap:14px}

/* home */
.hello{display:flex;align-items:center;gap:14px}
.ring{width:84px;height:84px;flex:none;position:relative}
.ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring .bgc{stroke:var(--surface-2)} .ring .fgc{stroke:var(--brand);transition:stroke-dashoffset 1s ease}
.ring b{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--display);font-weight:900;font-size:1.7rem;color:var(--brand-deep)}
@media (prefers-color-scheme:dark){.ring b{color:var(--brand)}}
.hello h1{font-size:1.35rem}
.hello p{margin:2px 0 0;color:var(--muted);font-size:.9rem}
.next{background:var(--ink);color:var(--on-ink);border-radius:20px;padding:16px;display:flex;flex-direction:column;gap:10px;text-decoration:none}
.next .eyebrow{color:var(--yellow)}
@media (prefers-color-scheme:dark){.next .eyebrow{color:var(--brand-deep)}}
.next h2{font-size:1.25rem}
.next p{margin:0;opacity:.8;font-size:.92rem}
.sec-h{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:-6px}
.sec-h h2{font-size:1.15rem}
.lec{display:flex;flex-direction:column;gap:12px;text-decoration:none;color:inherit}
.lec-h{display:flex;gap:14px;align-items:center}
.lec-n{width:52px;height:52px;border-radius:16px;background:var(--brand);color:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:900;font-size:1.4rem;flex:none}
.lec-n.done{background:var(--ok)}
.lec h3{font-size:1.1rem}
.lec small{color:var(--muted)}
.bar{height:8px;border-radius:9px;background:var(--surface-2);overflow:hidden}
.bar i{display:block;height:100%;background:var(--brand);border-radius:9px;transition:width .8s ease}
.tag{display:inline-block;background:var(--yellow);color:#1d2029;font-family:var(--display);font-weight:800;border-radius:10px;padding:1px 10px;font-size:.85rem}
.draft{background:var(--surface-2);color:var(--muted)}

/* lecture page */
.lec-hero{background:var(--surface);border-radius:22px;box-shadow:var(--shadow);padding:18px;display:flex;flex-direction:column;gap:10px}
.lec-hero h1{font-size:1.8rem;font-weight:900}
.lec-hero p{margin:0;color:var(--muted)}
.acts{display:flex;flex-direction:column;gap:0}
.act{display:flex;align-items:center;gap:14px;padding:12px 4px;position:relative;text-decoration:none;color:inherit}
.act:not(:last-child)::after{content:"";position:absolute;right:29px;top:64px;bottom:-12px;width:3px;border-radius:3px;background:var(--line)}
.act.done:not(:last-child)::after{background:var(--ok)}
.node{width:52px;height:52px;border-radius:50%;flex:none;display:grid;place-items:center;background:var(--surface);border:3px solid var(--brand);color:var(--brand-deep);position:relative;z-index:1}
.node svg{width:24px;height:24px}
.act.done .node{background:var(--ok);border-color:var(--ok);color:#fff}
.act.wait .node{background:var(--yellow);border-color:var(--yellow);color:#1d2029}
.act-i{flex:1;min-width:0}
.act-i b{display:block;font-size:1.02rem;line-height:1.4}
.act-i small{color:var(--muted);display:block;line-height:1.4}
.act .go{color:var(--muted)}
.act .go svg{width:20px;height:20px}
.status{font-size:.8rem;font-weight:700;border-radius:99px;padding:1px 9px;white-space:nowrap}
.status.ok{background:var(--ok-soft);color:var(--ok)} .status.wait{background:var(--yellow-soft);color:#9a6a00} .status.new{background:var(--brand-soft);color:var(--brand-deep)}
@media (prefers-color-scheme:dark){.status.wait{color:var(--yellow)}}

/* quiz */
.play{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:14px;min-height:calc(100dvh - 120px)}
.qtop{display:flex;align-items:center;gap:10px}
.icon-btn{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--surface);box-shadow:var(--shadow);flex:none}
.icon-btn svg{width:22px;height:22px}
.icon-btn.sure{width:auto;padding:0 12px;background:var(--bad);color:#fff;font-weight:700;font-size:.88rem}
.segs{display:flex;gap:4px}
.segs i{flex:1;height:6px;border-radius:9px;background:var(--surface-2)}
.segs i.now{background:var(--brand)} .segs i.ok{background:var(--ok)} .segs i.part{background:var(--yellow)} .segs i.no{background:var(--bad)}
.timer{display:flex;align-items:center;gap:10px}
.timer .track{flex:1;height:8px;border-radius:9px;background:var(--surface-2);overflow:hidden}
.timer .fill{height:100%;background:var(--teal);transform-origin:right;border-radius:9px}
.timer.hurry .fill{background:var(--bad)}
.timer .sec{min-width:2.2ch;text-align:center;font-weight:800;color:var(--muted)}
.timer.hurry .sec{color:var(--bad)}
.qcard{display:flex;flex-direction:column;gap:8px;animation:rise .3s ease-out}
@keyframes rise{from{transform:translateY(8px);opacity:.3}}
.qcard .type{color:var(--brand-deep);font-weight:700;font-size:.85rem}
.qcard h2{font-size:1.35rem;line-height:1.55}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{display:flex;align-items:center;gap:12px;text-align:start;min-height:58px;padding:10px 12px;border-radius:16px;background:var(--surface);border:2px solid var(--line);font-weight:500;font-size:1.02rem;line-height:1.45;transition:border-color .15s,opacity .25s,background .2s;width:100%}
.opt .l{width:32px;height:32px;flex:none;border-radius:10px;display:grid;place-items:center;background:var(--c,var(--surface-2));color:#fff;font-family:var(--display);font-weight:800}
.opts .opt:nth-child(1){--c:var(--brand)} .opts .opt:nth-child(2){--c:var(--violet)} .opts .opt:nth-child(3){--c:var(--teal)} .opts .opt:nth-child(4){--c:#d99a00}
.opt:disabled{cursor:default}
.opt.dim{opacity:.45} .opt.gone{opacity:0;pointer-events:none}
.opt.right{border-color:var(--ok);background:var(--ok-soft);opacity:1} .opt.right .l{background:var(--ok)}
.opt.wrong{border-color:var(--bad);background:var(--bad-soft);opacity:1;animation:shake .4s} .opt.wrong .l{background:var(--bad)}
@keyframes shake{25%,75%{transform:translateX(-6px)}50%{transform:translateX(6px)}}
.tf{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tf .opt{flex-direction:column;justify-content:center;min-height:110px;font-family:var(--display);font-weight:800;font-size:1.3rem}
.tf .opt svg{width:34px;height:34px}
.tf .opt.t{color:var(--ok)} .tf .opt.f{color:var(--bad)}
.slots{display:flex;flex-direction:column;gap:8px}
.slot{display:flex;align-items:center;gap:10px;min-height:54px;border-radius:14px;border:2px dashed var(--line);padding:8px 12px;text-align:start;width:100%}
.slot .n{width:28px;height:28px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-weight:800;font-size:.85rem;flex:none}
.slot.filled{border-style:solid;border-color:var(--brand);background:var(--surface)}
.slot.filled .n{background:var(--brand);color:#fff}
.slot.right{border-color:var(--ok);background:var(--ok-soft)} .slot.right .n{background:var(--ok)}
.slot.wrong{border-color:var(--bad);background:var(--bad-soft)} .slot.wrong .n{background:var(--bad)}
.pool{display:flex;flex-wrap:wrap;gap:8px}
.chipq{border-radius:12px;background:var(--surface);border:2px solid var(--line);padding:8px 12px;font-weight:500;text-align:start;line-height:1.4}
.chipq:disabled{opacity:.3}
.match{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:start}
.match .col{display:flex;flex-direction:column;gap:8px}
.mi{border-radius:14px;background:var(--surface);border:2px solid var(--line);padding:10px;text-align:start;font-size:.95rem;line-height:1.4;min-height:54px;display:flex;align-items:center;gap:8px;width:100%}
.mi .k{width:24px;height:24px;border-radius:50%;flex:none;background:var(--surface-2);display:grid;place-items:center;font-size:.75rem;font-weight:800;color:#fff}
.mi.sel{border-color:var(--fg);box-shadow:0 0 0 3px color-mix(in srgb,var(--fg) 15%,transparent)}
.mi.paired{border-color:var(--pc)} .mi.paired .k{background:var(--pc)}
.mi.right{border-color:var(--ok);background:var(--ok-soft)} .mi.wrong{border-color:var(--bad);background:var(--bad-soft)}
.help{display:flex;justify-content:center;gap:10px}
.life{display:flex;align-items:center;gap:8px;padding:8px 16px;border-radius:99px;background:var(--surface);box-shadow:var(--shadow);font-weight:700;font-size:.92rem}
.life svg{width:20px;height:20px;color:var(--brand-deep)}
.life:disabled{opacity:.45;cursor:default}
.fb{background:var(--surface);border-radius:20px;box-shadow:var(--shadow);padding:16px;display:flex;flex-direction:column;gap:10px;border-top:5px solid var(--tone);animation:rise .3s ease-out;scroll-margin-bottom:16px}
.fb-h{display:flex;align-items:center;gap:10px}
.fb-h h3{font-size:1.2rem;color:var(--tone)}
.fb-h .pts{margin-inline-start:auto;font-weight:800;color:#9a6a00}
@media (prefers-color-scheme:dark){.fb-h .pts{color:var(--yellow)}}
.fb p{margin:0}
.fb .ans{color:var(--muted);font-size:.92rem}
.fb ol{margin:0;padding-inline-start:20px;color:var(--muted);font-size:.92rem}
.intro{display:flex;flex-direction:column;gap:14px;text-align:center;align-items:center;padding-top:8px}
.intro .big{width:96px;height:96px;border-radius:28px;background:var(--brand);color:#fff;display:grid;place-items:center}
.intro .big svg{width:52px;height:52px}
.intro h1{font-size:1.6rem}
.facts{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.rules{text-align:start;margin:0;padding-inline-start:20px;color:var(--muted);font-size:.92rem}
.res{display:flex;flex-direction:column;gap:14px}
.res-h{text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px}
.stars{display:flex;gap:4px;align-items:flex-end}
.stars svg{width:56px;height:56px;fill:var(--surface-2)}
.stars svg:nth-child(2){width:74px;height:74px}
.stars svg.on{fill:var(--yellow);animation:starin .5s backwards}
.stars svg.on:nth-child(2){animation-delay:.2s} .stars svg.on:nth-child(3){animation-delay:.4s}
@keyframes starin{from{transform:scale(0) rotate(-60deg)}}
.res-h h1{font-size:1.6rem}
.score-big{font-family:var(--display);font-weight:900;font-size:3rem;line-height:1;color:var(--brand-deep)}
@media (prefers-color-scheme:dark){.score-big{color:var(--brand)}}
.lvbar{display:flex;flex-direction:column;gap:6px}
.lvbar .lbl{display:flex;justify-content:space-between;font-size:.9rem;color:var(--muted);gap:8px}
.lvbar .lbl b{color:var(--fg)}
.lvbar .bar{height:12px}
.levelup{display:flex;align-items:center;gap:12px;background:var(--brand);color:#fff;border-radius:18px;padding:14px 16px;animation:rise .5s .5s backwards}
.levelup svg{width:34px;height:34px}
.levelup b{font-family:var(--display);font-size:1.1rem;display:block}
.newb{display:flex;flex-direction:column;gap:8px}

/* badges & leaderboard */
.badges{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.badge{display:flex;align-items:center;gap:10px;background:var(--surface);border-radius:16px;padding:12px;box-shadow:var(--shadow)}
.badge .bi{width:42px;height:42px;border-radius:50%;flex:none;display:grid;place-items:center;background:var(--yellow-soft);color:#9a6a00}
@media (prefers-color-scheme:dark){.badge .bi{color:var(--yellow)}}
.badge .bi svg{width:22px;height:22px}
.badge b{display:block;font-size:.95rem;line-height:1.3}
.badge small{display:block;color:var(--muted);font-size:.78rem;line-height:1.35}
.badge.off{box-shadow:none;background:transparent;border:1.5px dashed var(--line)}
.badge.off .bi{background:var(--surface-2);color:var(--muted)}
.podium{display:flex;align-items:flex-end;gap:8px}
.pod{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;min-width:0;text-align:center}
.pod .av{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--surface-2);font-family:var(--display);font-weight:900;font-size:1.3rem}
.pod:nth-child(2) .av{width:64px;height:64px;background:var(--yellow);color:#1d2029}
.pod .nm{font-weight:700;font-size:.9rem;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pod .blk{width:100%;border-radius:14px 14px 0 0;background:var(--surface);box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:8px;font-family:var(--display);font-weight:900}
.pod .blk b{font-size:1.5rem} .pod .blk small{font-family:var(--body);color:var(--muted);font-weight:700}
.pod:nth-child(1) .blk{height:90px} .pod:nth-child(2) .blk{height:120px;background:var(--brand);color:#fff} .pod:nth-child(2) .blk small{color:#fff;opacity:.85} .pod:nth-child(3) .blk{height:70px}
.lb{display:flex;flex-direction:column}
.lb-r{display:flex;align-items:center;gap:12px;padding:10px 4px;border-bottom:1px solid var(--line)}
.lb-r:last-child{border-bottom:0}
.lb-r .rk{width:2ch;text-align:center;font-family:var(--display);font-weight:900;color:var(--muted)}
.lb-r .av{width:38px;height:38px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-weight:800;flex:none}
.lb-r b{font-family:var(--display)}
.lb-r.me{background:var(--brand-soft);border-radius:12px;padding-inline:10px;border-bottom-color:transparent}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat{background:var(--surface);border-radius:16px;padding:12px 14px;box-shadow:var(--shadow)}
.stat b{display:block;font-family:var(--display);font-size:1.5rem;font-variant-numeric:tabular-nums;line-height:1.3}
.stat small{color:var(--muted);font-size:.85rem}

/* homework */
.hw-status{display:flex;gap:12px;align-items:flex-start;border-radius:16px;padding:14px}
.hw-status.wait{background:var(--yellow-soft)} .hw-status.ok{background:var(--ok-soft)}
.hw-status svg{width:26px;height:26px;flex:none}
.hw-status b{display:block}
.file-box{display:flex;align-items:center;gap:10px;border:1.5px dashed var(--line);border-radius:14px;padding:12px;flex-wrap:wrap}
.file-box svg{width:24px;height:24px;color:var(--muted)}

/* admin */
.admin-nav{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px}
.admin-nav a{white-space:nowrap;padding:8px 14px;border-radius:99px;background:var(--surface);box-shadow:var(--shadow);font-weight:700;text-decoration:none;color:var(--muted);font-size:.92rem}
.admin-nav a.on{background:var(--ink);color:var(--on-ink)}
.list{display:flex;flex-direction:column;gap:10px}
.li{display:flex;align-items:center;gap:12px;background:var(--surface);border-radius:16px;box-shadow:var(--shadow);padding:12px 14px;text-decoration:none;color:inherit}
.li .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-deep);flex:none}
.li .ic svg{width:22px;height:22px}
.li b{display:block;line-height:1.4}
.li small{color:var(--muted)}
.qed{display:flex;flex-direction:column;gap:10px;border:1.5px solid var(--line);border-radius:16px;padding:14px;background:var(--surface)}
.qed-h{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.qed-h b{font-family:var(--display)}
.qed-h .grow{flex:1}
.opt-ed{display:flex;align-items:center;gap:8px}
.opt-ed input[type=radio]{width:22px;height:22px;flex:none;accent-color:var(--ok)}
.opt-ed input[type=text]{min-height:42px}
.pair-ed{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;align-items:center}
.pair-ed input{min-height:42px}
.x-btn{width:36px;height:36px;border-radius:10px;background:var(--surface-2);color:var(--muted);display:grid;place-items:center;flex:none}
.x-btn svg{width:16px;height:16px}
.sticky-save{position:sticky;bottom:calc(76px + env(safe-area-inset-bottom,0px));z-index:5;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);padding:10px 0;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tbl-wrap{overflow-x:auto;border-radius:16px;box-shadow:var(--shadow);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{text-align:start;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:700;font-size:.82rem}
td.wrap{white-space:normal;min-width:180px}
.sub{display:flex;flex-direction:column;gap:12px}
.sub .qa{display:flex;flex-direction:column;gap:2px}
.sub .qa b{font-size:.88rem;color:var(--muted)}
.sub .qa p{margin:0;white-space:pre-wrap}
.grade-row{display:grid;grid-template-columns:120px 1fr auto;gap:10px;align-items:end}
@media (max-width:560px){.grade-row{grid-template-columns:1fr}.match{gap:8px}.mi{font-size:.88rem;padding:8px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
#fx{position:fixed;inset:0;pointer-events:none;z-index:40;width:100%;height:100%}