:root{
  --bg:#E4E6E9; --surface:#F3F4F5; --card:#FFFFFF; --card-2:#F6F7F8;
  --ink:#16181B; --ink-2:#3B4046; --muted:#5A6068; --line:#E3E5E8;
  --pill:#1D2023; --on-pill:#FFFFFF; --pill-soft:#2A2E32;
  --good:#167A4B; --good-bg:#E3F5EC; --bad:#B3261E; --bad-bg:#FCE9E7; --warn:#9A5B00;
  --on-good:#FFFFFF; --on-bad:#FFFFFF;
  --bronze:#8F5424; --silver:#8A96A3; --gold:#D9A21B; --plat:#4353E0;
  --shadow:0 18px 40px -18px rgba(22,24,27,.28);
  --shadow-sm:0 6px 16px -8px rgba(22,24,27,.22);
  --r-xl:34px; --r-lg:26px; --r-md:18px; --r-sm:12px;
  --display:"Bricolage Grotesque",Figtree,ui-sans-serif,system-ui,sans-serif;
  --body:Figtree,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#0F1113; --surface:#16191C; --card:#1D2124; --card-2:#23282C;
    --ink:#F1F2F3; --ink-2:#C7CBD0; --muted:#9AA1A9; --line:#2C3135;
    --pill:#F1F2F3; --on-pill:#16181B; --pill-soft:#DADDE0;
    --good:#4FD894; --good-bg:#15301F; --bad:#FF8A80; --bad-bg:#3A1A18; --warn:#F0B25A;
    --on-good:#0F1113; --on-bad:#0F1113;
    --shadow:0 18px 40px -18px rgba(0,0,0,.7); --shadow-sm:0 6px 16px -8px rgba(0,0,0,.6);
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0F1113; --surface:#16191C; --card:#1D2124; --card-2:#23282C;
  --ink:#F1F2F3; --ink-2:#C7CBD0; --muted:#9AA1A9; --line:#2C3135;
  --pill:#F1F2F3; --on-pill:#16181B; --pill-soft:#DADDE0;
  --good:#4FD894; --good-bg:#15301F; --bad:#FF8A80; --bad-bg:#3A1A18; --warn:#F0B25A;
    --on-good:#0F1113; --on-bad:#0F1113;
  --shadow:0 18px 40px -18px rgba(0,0,0,.7); --shadow-sm:0 6px 16px -8px rgba(0,0,0,.6);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
img{max-width:100%}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--plat);outline-offset:2px;border-radius:10px}
h1,h2,h3{font-family:var(--display);letter-spacing:-.02em;text-wrap:balance;margin:0;line-height:1.1}
h1{font-size:clamp(28px,3.4vw,38px);font-weight:700}
h2{font-size:22px;font-weight:650}
h3{font-size:17px;font-weight:650}
p{margin:0}
code,.mono{font-family:var(--mono);font-size:.92em}
code{background:var(--card-2);padding:1px 6px;border-radius:6px}
.muted{color:var(--muted)}
.num{font-variant-numeric:tabular-nums}

/* ---------- shell ---------- */
.shell{display:grid;grid-template-columns:96px minmax(0,1fr);min-height:100%;max-width:1480px;margin:0 auto}
.shell.has-side{grid-template-columns:96px minmax(0,1fr) 340px}
.rail{position:sticky;top:env(safe-area-inset-top,0px);height:calc(100vh - 32px);margin:16px 0 16px 16px;background:var(--pill);border-radius:40px;display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 0}
.logo{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:13px;color:var(--pill);background:linear-gradient(135deg,#F0A35E,#2F9BB3);margin-bottom:14px}
.nav-btn{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:color-mix(in srgb,var(--on-pill) 72%,var(--pill));transition:background .2s,color .2s,transform .2s;position:relative}
.nav-btn:hover{color:var(--on-pill);transform:translateY(-1px)}
.nav-btn.on{background:var(--on-pill);color:var(--pill)}
.nav-btn svg{width:23px;height:23px}
.nav-btn .tip{position:absolute;left:66px;background:var(--pill);color:var(--on-pill);font-size:12px;padding:4px 10px;border-radius:99px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .15s}
.nav-btn:hover .tip{opacity:1}
.rail .spacer{flex:1}
.theme-btn{width:44px;height:44px}
.main{padding:28px 32px 48px;min-width:0}
.side{padding:28px 24px 48px 0;display:flex;flex-direction:column;gap:18px}

/* ---------- home header ---------- */
.hello{display:flex;align-items:center;justify-content:space-between;gap:16px}
.hello .sub{color:var(--muted);margin-top:4px}
.avatar{width:54px;height:54px;border-radius:50%;flex:none;display:grid;place-items:center;font-weight:700;color:#fff;font-size:18px;box-shadow:0 0 0 3px var(--card),var(--shadow-sm);overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.search{margin-top:22px;display:flex;align-items:center;gap:10px;background:var(--card);border-radius:99px;padding:8px 8px 8px 22px;box-shadow:var(--shadow-sm)}
.search svg{width:20px;height:20px;color:var(--ink-2);flex:none}
.search input{flex:1;border:0;background:transparent;outline:none;font-size:16px;min-width:0;padding:8px 0}
.search input::placeholder{color:var(--muted)}
.icon-dark{width:46px;height:46px;border-radius:50%;background:var(--pill);color:var(--on-pill);display:grid;place-items:center;flex:none}
.icon-dark svg{width:20px;height:20px}

.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:32px 0 14px}
.link{text-decoration:underline;text-underline-offset:4px;font-weight:600;font-size:14px;color:var(--ink)}
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;padding:10px 20px;border-radius:99px;background:var(--card);color:var(--ink-2);font-weight:500;border:1px solid var(--line);transition:background .2s,color .2s}
.chip:hover{border-color:var(--muted)}
.chip.on{background:var(--pill);color:var(--on-pill);border-color:var(--pill)}

/* ---------- unit cover cards ---------- */
.deck{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(270px,340px);gap:18px;overflow-x:auto;padding:6px 4px 22px;margin:0 -4px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.ucard{scroll-snap-align:start;position:relative;border-radius:var(--r-xl);height:400px;overflow:hidden;color:#fff;box-shadow:var(--shadow);background-size:cover;background-position:center;display:flex;flex-direction:column;justify-content:flex-end;padding:18px;text-align:left;transition:transform .25s}
.ucard:hover{transform:translateY(-4px) rotate(-.4deg)}
.ucard::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.08) 20%,rgba(0,0,0,.72) 100%);pointer-events:none}
.ucard > *{position:relative;z-index:1}
.ucard .eyebrow{font-size:13px;opacity:.85}
.ucard h3{font-size:25px;color:#fff;margin:2px 0 8px}
.ucard .meta{display:flex;gap:8px;align-items:center;font-size:13px;opacity:.92;flex-wrap:wrap}
.glass{background:rgba(12,14,16,.45);color:#fff;border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:99px;padding:3px 10px;display:inline-flex;align-items:center;gap:5px}
.see-more{margin-top:14px;display:flex;align-items:center;justify-content:space-between;background:rgba(20,22,25,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:99px;padding:6px 6px 6px 22px;font-weight:500}
.see-more .go{width:44px;height:44px;border-radius:50%;background:#fff;color:#16181B;display:grid;place-items:center}
.heart{position:absolute;top:16px;right:16px;z-index:2;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(12,14,16,.42);border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#fff}
.heart svg{width:21px;height:21px}
.heart.on svg{fill:currentColor}
.heart.solid{background:var(--card);color:var(--ink);border:0;box-shadow:var(--shadow-sm)}

/* ---------- tiles ---------- */
.row-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.tile{background:var(--card);border-radius:var(--r-lg);padding:14px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:10px;text-align:left;position:relative;transition:transform .2s}
.tile:hover{transform:translateY(-2px)}
.tile .thumb{height:150px;border-radius:var(--r-md);background-size:cover;background-position:center;position:relative}
.tile .thumb .heart{top:10px;right:10px;width:40px;height:40px}
.tile .t-title{font-family:var(--display);font-size:18px;font-weight:650;padding:0 4px;line-height:1.2}
.tile .t-meta{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;padding:0 4px;flex-wrap:wrap}
.tile .t-foot{display:flex;align-items:center;justify-content:space-between;padding:0 4px 2px;gap:8px}
.go-dark{width:48px;height:48px;border-radius:50%;background:var(--pill);color:var(--on-pill);display:grid;place-items:center;flex:none}
.go-dark svg{width:20px;height:20px}
.dot{width:3px;height:3px;border-radius:50%;background:currentColor;display:inline-block}
.stars{display:inline-flex;gap:3px;align-items:center}
.medal{width:14px;height:14px;border-radius:50%;background:var(--line);display:inline-block}
.medal.b{background:var(--bronze)}.medal.s{background:var(--silver)}.medal.g{background:var(--gold)}.medal.p{background:var(--plat)}

.panel{background:var(--card);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-sm)}
.panel h3{margin-bottom:12px}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:var(--card-2);border-radius:var(--r-md);padding:12px}
.stat b{display:block;font-family:var(--display);font-size:24px;font-variant-numeric:tabular-nums;line-height:1.1}
.stat span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.lvl{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.ring{--p:0;width:64px;height:64px;border-radius:50%;background:conic-gradient(var(--ink) calc(var(--p)*1%),var(--line) 0);display:grid;place-items:center;flex:none}
.ring i{width:50px;height:50px;border-radius:50%;background:var(--card);display:grid;place-items:center;font-style:normal;font-family:var(--display);font-weight:700;font-size:20px}
.bar{height:8px;border-radius:99px;background:var(--line);overflow:hidden}
.bar > i{display:block;height:100%;border-radius:inherit;background:var(--ink);transition:width .4s}

.target{display:flex;gap:12px;align-items:center;padding:10px;border-radius:var(--r-md);background:var(--card-2);text-align:left;width:100%}
.target + .target{margin-top:8px}
.target .sw{width:46px;height:46px;border-radius:14px;flex:none;background-size:cover}
.target .tt{flex:1;min-width:0}
.target .tt b{display:block;font-weight:600;font-size:14px;line-height:1.25}
.target .tt small{color:var(--muted);font-size:12px}
.tick{width:26px;height:26px;border-radius:50%;border:2px solid var(--line);flex:none;display:grid;place-items:center}
.tick.done{background:var(--good);border-color:var(--good);color:var(--on-good)}
.tick svg{width:14px;height:14px}

.lb-mini .row{display:flex;align-items:center;gap:10px;padding:8px 4px}
.lb-mini .row + .row{border-top:1px solid var(--line)}
.rank{width:26px;font-family:var(--display);font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums}
.av-sm{width:34px;height:34px;border-radius:50%;flex:none;display:grid;place-items:center;color:#fff;font-weight:700;font-size:13px;overflow:hidden}
.av-sm img{width:100%;height:100%;object-fit:cover}
.lb-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.lb-xp{font-variant-numeric:tabular-nums;font-weight:600}
.me-row{background:var(--card-2);border-radius:12px}

.quick{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.qcard{border-radius:var(--r-lg);padding:18px;color:#fff;min-height:150px;display:flex;flex-direction:column;justify-content:space-between;text-align:left;background-size:cover;position:relative;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s}
.qcard:hover{transform:translateY(-2px)}
.qcard::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.38),rgba(0,0,0,.6))}
.qcard > *{position:relative}
.qcard b{font-family:var(--display);font-size:20px;font-weight:650;line-height:1.15}
.qcard small{opacity:.9}

/* ---------- unit detail ---------- */
.hero{height:320px;border-radius:var(--r-xl);background-size:cover;background-position:center;position:relative}
.hero .back,.hdr-btn{width:52px;height:52px;border-radius:50%;background:var(--card);color:var(--ink);display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.hero .back{position:absolute;top:18px;left:18px}
.hero .heart{top:18px;right:18px;width:52px;height:52px}
.back svg,.hdr-btn svg{width:22px;height:22px}
.sheet{background:var(--surface);border-radius:var(--r-xl);margin-top:-56px;position:relative;padding:14px 28px 28px;box-shadow:var(--shadow)}
.grab{width:46px;height:5px;border-radius:99px;background:var(--line);margin:0 auto 18px}
.sheet-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap}
.badge-line{display:flex;gap:8px;align-items:center;margin-top:6px;color:var(--ink-2);font-weight:500}
.pbadge{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;color:#fff}
.rate{display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.rate .pillo{border:1px solid var(--line);border-radius:99px;padding:4px 12px;display:inline-flex;gap:6px;align-items:center;font-weight:600;background:var(--card)}
.blurb{margin-top:18px;color:var(--ink-2);max-width:70ch;font-size:16px}

/* ---------- subtopic detail ---------- */
.sub-hdr{display:grid;grid-template-columns:52px 1fr 52px;align-items:center;gap:12px;text-align:center}
.sub-hdr h1{font-size:clamp(24px,3vw,32px)}
.sub-hdr .muted{margin-top:4px}
.tabs{display:flex;gap:8px;margin:26px 0 20px;overflow-x:auto;scrollbar-width:none}
.tab{flex:none;padding:11px 22px;border-radius:99px;background:var(--card);color:var(--ink-2);font-weight:500}
.tab.on{background:var(--pill);color:var(--on-pill)}
.sub-body{max-width:860px;margin:0 auto}
.acc{background:var(--card);border-radius:var(--r-lg);padding:14px;box-shadow:var(--shadow-sm);border:1px solid transparent}
.acc + .acc{margin-top:12px}
.acc.open{background:var(--card-2);border-color:var(--line)}
.acc-head{display:flex;gap:14px;align-items:center;width:100%;text-align:left}
.acc-head .sw{width:92px;height:70px;border-radius:14px;flex:none;background-size:cover;display:grid;place-items:center;font-family:var(--display);font-weight:800;color:#fff;font-size:22px;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.acc-head .tt{flex:1;min-width:0}
.acc-head small{color:var(--muted)}
.acc-head b{display:block;font-weight:600;font-size:16px}
.chev{width:22px;height:22px;transition:transform .2s;flex:none}
.acc.open .chev{transform:rotate(180deg)}
.acc-body{padding:14px 6px 4px;display:grid;gap:12px}
.acc-body .k{font-size:13px;color:var(--muted)}
.acc-body .v{font-weight:500}
.cta{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;background:var(--pill);color:var(--on-pill);border-radius:99px;padding:17px 24px;font-size:17px;font-weight:600;transition:transform .15s,opacity .2s}
.cta:hover{transform:translateY(-1px)}
.cta svg,.small-btn svg,.link svg,.rb svg,.tab svg{width:1.25em;height:1.25em;flex:none}
.cta:disabled{background:var(--line);color:var(--muted);cursor:not-allowed;transform:none}
.cta.ghost{background:var(--card);color:var(--ink);border:1px solid var(--line)}
.cta-dock{position:sticky;bottom:calc(16px + env(safe-area-inset-bottom,0px));margin-top:22px;z-index:5}
.facts{display:grid;gap:12px}
.fact{background:var(--card);border-radius:var(--r-md);padding:16px 18px;display:flex;gap:14px;box-shadow:var(--shadow-sm)}
.fact .n{font-family:var(--mono);font-size:12px;color:var(--muted);padding-top:3px}

/* ---------- quiz ---------- */
.quiz{max-width:780px;margin:0 auto}
.qtop{display:flex;align-items:center;gap:14px}
.qtop .bar{flex:1;height:10px}
.xp-pill{background:var(--pill);color:var(--on-pill);border-radius:99px;padding:6px 14px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.qcard-main{background:var(--card);border-radius:var(--r-xl);padding:28px;margin-top:20px;box-shadow:var(--shadow)}
.qmeta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.code-chip{font-family:var(--mono);font-weight:700;background:var(--pill);color:var(--on-pill);border-radius:8px;padding:3px 9px;font-size:13px}
.tagc{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:99px;padding:3px 10px}
.qtext{font-size:clamp(19px,2.2vw,23px);font-weight:600;line-height:1.35;font-family:var(--body)}
.qpre{margin-top:14px;background:var(--pill);color:var(--on-pill);font-family:var(--mono);font-size:14px;line-height:1.6;border-radius:var(--r-md);padding:16px 18px;overflow-x:auto;white-space:pre}
.opts{display:grid;gap:10px;margin-top:22px}
.opt{display:flex;align-items:center;gap:14px;text-align:left;background:var(--card-2);border:2px solid transparent;border-radius:var(--r-md);padding:14px 16px;font-size:16px;font-weight:500;transition:border-color .15s,background .15s}
.opt:hover:not(:disabled){border-color:var(--ink-2)}
.opt .key{width:30px;height:30px;border-radius:50%;background:var(--card);display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:700;flex:none;border:1px solid var(--line)}
.opt.sel{border-color:var(--ink)}
.opt.right{border-color:var(--good);background:var(--good-bg)}
.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}
.opt:disabled{cursor:default}
.ans-in{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}
.ans-in input{flex:1;min-width:0;font-family:var(--mono);font-size:22px;letter-spacing:.08em;padding:14px 18px;border-radius:var(--r-md);border:2px solid var(--line);background:var(--card-2);outline:none}
.ans-in input:focus{border-color:var(--ink)}
.ans-in input.right{border-color:var(--good);background:var(--good-bg)}
.ans-in input.wrong{border-color:var(--bad);background:var(--bad-bg)}
.bitpad{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.bitpad button{min-width:48px;height:44px;border-radius:12px;background:var(--card-2);border:1px solid var(--line);font-family:var(--mono);font-weight:700;font-size:16px}
.feedback{margin-top:18px;border-radius:var(--r-md);padding:16px 18px;display:flex;gap:12px;align-items:flex-start}
.feedback.ok{background:var(--good-bg)}
.feedback.no{background:var(--bad-bg)}
.feedback .fi{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:#fff;flex:none}
.feedback.ok .fi{background:var(--good);color:var(--on-good)}
.feedback.no .fi{background:var(--bad);color:var(--on-bad)}
.feedback .fi svg{width:16px;height:16px}
.feedback b{display:block;margin-bottom:2px}
.q-actions{display:flex;gap:10px;margin-top:22px}
.q-actions .cta{flex:1}
.results{text-align:center;max-width:620px;margin:0 auto}
.big-score{font-family:var(--display);font-size:clamp(56px,9vw,88px);font-weight:800;line-height:1;margin:14px 0 6px;font-variant-numeric:tabular-nums}
.medal-big{width:120px;height:120px;border-radius:50%;margin:10px auto 0;display:grid;place-items:center;color:#fff;font-family:var(--display);font-weight:800;font-size:15px;letter-spacing:.08em;text-transform:uppercase;box-shadow:inset 0 -8px 0 rgba(0,0,0,.15),var(--shadow)}
.res-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0}
.res-stats .stat{background:var(--card)}
.pop{animation:pop .5s cubic-bezier(.2,1.4,.4,1)}
@keyframes pop{from{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}
.shake{animation:shake .35s}
@keyframes shake{25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* ---------- leaderboard ---------- */
.podium{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:end;margin:22px 0}
.pod{background:var(--card);border-radius:var(--r-lg);padding:18px 12px;text-align:center;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;align-items:center;gap:6px;min-width:0}
.pod .avatar{width:62px;height:62px}
.pod .place{font-family:var(--display);font-weight:800;font-size:34px;line-height:1}
.pod.p1{padding-top:30px;background:var(--pill);color:var(--on-pill)}
.pod.p1 .muted{color:inherit;opacity:.7}
.pod .nm{font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-table{background:var(--card);border-radius:var(--r-lg);padding:8px 14px;box-shadow:var(--shadow-sm)}
.lb-table .row{display:flex;align-items:center;gap:12px;padding:12px 6px}
.lb-table .row + .row{border-top:1px solid var(--line)}
.lb-sub{font-size:12px;color:var(--muted)}
.nick{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.nick input{flex:1;min-width:0;padding:11px 16px;border-radius:99px;border:1px solid var(--line);background:var(--card-2);outline:none}
.nick input:focus{border-color:var(--ink)}
.small-btn{padding:10px 18px;border-radius:99px;background:var(--pill);color:var(--on-pill);font-weight:600}
.note{font-size:13px;color:var(--muted);margin-top:8px}

/* ---------- progress ---------- */
.unit-prog{display:flex;align-items:center;gap:14px;padding:12px 0}
.unit-prog + .unit-prog{border-top:1px solid var(--line)}
.unit-prog .sw{width:44px;height:44px;border-radius:14px;flex:none;background-size:cover}
.unit-prog .tt{flex:1;min-width:0}
.unit-prog .tt b{font-weight:600;display:block}
.unit-prog .pc{font-variant-numeric:tabular-nums;font-weight:600;width:48px;text-align:right}
.hist .row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;font-size:14px}
.hist .row + .row{border-top:1px solid var(--line)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.empty{padding:30px;text-align:center;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:calc(28px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--pill);color:var(--on-pill);padding:12px 20px;border-radius:99px;font-weight:600;z-index:50;box-shadow:var(--shadow);animation:pop .3s}
.search-results{margin-top:16px;display:grid;gap:8px}

@media (max-width:1180px){
  .shell.has-side{grid-template-columns:96px minmax(0,1fr)}
  .side{grid-column:2;padding:0 32px 48px}
}
@media (max-width:760px){
  .shell,.shell.has-side{grid-template-columns:minmax(0,1fr)}
  .rail{position:fixed;left:16px;right:16px;bottom:calc(12px + env(safe-area-inset-bottom,0px));top:auto;height:72px;margin:0;flex-direction:row;justify-content:space-around;padding:0 10px;z-index:20;border-radius:99px}
  .rail .logo,.rail .spacer,.nav-btn .tip{display:none}
  .theme-btn{width:44px;height:44px}
  .main{padding:20px 16px 120px}
  .side{grid-column:1;padding:0 16px 120px}
  .ucard{height:360px}
  .deck{grid-auto-columns:82%}
  .sheet{padding:12px 18px 22px}
  .hero{height:240px}
  .qcard-main{padding:20px}
  .two-col{grid-template-columns:1fr}
  .podium{gap:8px}
  .pod .avatar{width:48px;height:48px}
  .cta-dock{bottom:calc(96px + env(safe-area-inset-bottom,0px))}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* ---------- shell states ---------- */
.shell.is-auth{grid-template-columns:minmax(0,1fr)}
.shell.is-auth .main{padding:0}
.splash{min-height:70vh;display:grid;place-items:center;align-content:center;gap:14px;text-align:center}
.logo.big{width:72px;height:72px;font-size:20px;margin:0}
.nav-btn{position:relative}
.nav-dot{position:absolute;top:6px;right:6px;min-width:18px;height:18px;border-radius:9px;background:#C62834;color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;padding:0 4px}
.avatar-btn{border-radius:50%}
.avatar.xl{width:84px;height:84px;font-size:32px}
.row-btns{display:flex;gap:10px;flex-wrap:wrap}
.row-btns .cta{flex:1;min-width:140px}
.cta.danger{background:var(--bad);color:var(--on-bad)}
.note.err,.auth-err{color:var(--bad)}
.link.danger-t,.danger-t{color:var(--bad)}
.warn-t{color:var(--warn)}

/* ---------- forms ---------- */
.form{display:grid;gap:8px}
.form label{font-size:13px;font-weight:600;color:var(--ink-2);margin-top:6px}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:var(--card-2);outline:none;font:inherit;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--ink)}
.form .cta,.form .small-btn{margin-top:10px}
.form.grid2{grid-template-columns:1fr 1fr;column-gap:14px}
.form.grid2 > div{display:grid;gap:6px;align-content:start}
.form .span2{grid-column:1 / -1}
.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--card-2);border-radius:99px;padding:4px;margin:16px 0 6px}
.seg button{padding:10px;border-radius:99px;font-weight:600;color:var(--muted)}
.seg button.on{background:var(--pill);color:var(--on-pill)}
details.more{margin-top:12px}
details.more summary{cursor:pointer;font-weight:600;padding:6px 0}
.toggle{width:50px;height:30px;border-radius:99px;background:var(--line);position:relative;flex:none;transition:background .2s}
.toggle span{position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:var(--shadow-sm);transition:transform .2s}
.toggle.on{background:var(--good)}
.toggle.on span{transform:translateX(20px)}
.row-line{display:flex;align-items:center;gap:12px;padding:10px 0}
.row-line + .row-line{border-top:1px solid var(--line)}
.row-line .tt{flex:1;min-width:0}
.row-line .tt b{display:block;font-weight:600;font-size:14px}
.sw.sm{width:38px;height:38px;border-radius:12px;background-size:cover;flex:none}
.pc-chip{background:color-mix(in srgb,#B3261E calc((1 - var(--v)) * 100%),#167A4B);color:#fff;border-radius:99px;padding:2px 10px;font-weight:700;font-size:13px}
.swatches{display:flex;gap:8px;flex-wrap:wrap}
.swatch{width:34px;height:34px;border-radius:50%;border:3px solid transparent}
.swatch.on{border-color:var(--ink)}

/* ---------- auth ---------- */
.auth{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);min-height:100vh;gap:0}
.auth-art{margin:16px;border-radius:var(--r-xl);background-size:cover;background-position:center;color:#fff;padding:36px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.auth-art::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 30%,rgba(0,0,0,.55))}
.auth-art > *{position:relative;z-index:1}
.auth-art h1{color:#fff;font-size:clamp(32px,4vw,52px);max-width:14ch}
.auth-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.auth-pills .glass{padding:6px 14px}
.auth-card{align-self:center;justify-self:center;width:min(440px,100%);padding:32px 24px}
.auth-brand{display:flex;flex-direction:column;margin-bottom:22px}
.auth-brand b{font-family:var(--display);font-size:28px}
.auth-card h2{margin-bottom:6px}
.auth-card .cta{margin-top:14px}
.auth-links{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:16px;font-size:14px}
.auth-err{min-height:20px;margin-top:12px;font-weight:600}

/* ---------- quiz HUD & game feel ---------- */
.lives{display:flex;gap:2px}
.lives i{width:26px;height:26px;display:grid;place-items:center;color:#E63946}
.lives i svg{width:22px;height:22px;fill:currentColor}
.lives i.lost{color:var(--muted)}
.lives i.lost svg{fill:none}
.combo{display:inline-flex;gap:4px;align-items:center;background:linear-gradient(90deg,#C2410C,#B0306E);color:#fff;font-weight:700;font-size:12px;border-radius:99px;padding:3px 10px}
.qcard-main.glow{box-shadow:0 0 0 3px #FB560766,var(--shadow)}
.bar.timebar > i{background:linear-gradient(90deg,#E63946,#FB5607,#FFBE0B);transition:width 1s linear}
.boss{display:flex;gap:14px;align-items:center;margin-top:16px;background:var(--pill);color:var(--on-pill);border-radius:var(--r-lg);padding:12px 16px}
.boss-art{width:64px;height:64px;border-radius:18px;background-size:cover;flex:none;display:grid;place-items:end center;padding-bottom:6px;font-family:var(--mono);font-weight:700;color:#fff}
.boss-art span{background:rgba(12,14,16,.72);border-radius:6px;padding:1px 6px;font-size:11px;letter-spacing:.06em}
.boss-art.big span{font-size:15px;padding:2px 10px}
.boss-art.big{width:130px;height:130px;border-radius:34px;margin:0 auto 12px;padding-bottom:12px}
.boss-info{flex:1;min-width:0}
.boss-info b{font-family:var(--display);font-size:18px}
.hpbar{height:12px;border-radius:99px;background:rgba(127,127,127,.35);overflow:hidden;margin:6px 0 2px}
.hpbar i{display:block;height:100%;background:linear-gradient(90deg,#E63946,#FB5607);transition:width .4s}
.boss.hit .boss-art{animation:shake .35s}
.boss-result.lose .boss-art{filter:saturate(1.4)}
.boss-result.win .boss-art{filter:grayscale(1) opacity(.6);transform:rotate(-8deg)}
.boss-cta{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;margin-top:22px;border-radius:var(--r-lg);padding:20px 22px;color:#fff;text-align:left;background-size:cover;background-position:center;box-shadow:var(--shadow-sm);transition:transform .2s}
.boss-cta{position:relative;overflow:hidden}
.boss-cta::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.6),rgba(0,0,0,.25))}
.boss-cta > *{position:relative}
.boss-cta:hover{transform:translateY(-2px)}
.boss-cta span:first-child{display:flex;flex-direction:column;gap:2px}
.boss-cta b{font-family:var(--display);font-size:24px}
.boss-cta small{opacity:.85}
.boss-cta .go{width:48px;height:48px;border-radius:50%;background:#fff;color:#16181B;display:grid;place-items:center;flex:none}
.boss-cta .go svg{width:20px;height:20px}
.tag-int{position:absolute;left:10px;bottom:10px;background:rgba(20,22,25,.72);color:#fff;font-size:11px;font-weight:600;padding:3px 10px;border-radius:99px}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:60}

/* ---------- widgets ---------- */
.widget{margin-top:20px}
.bitrow{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px}
.bit{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 0 10px;border-radius:14px;background:var(--card-2);border:2px solid var(--line);transition:transform .1s,background .15s}
.bit small{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.bit b{font-family:var(--mono);font-size:24px}
.bit:not(:disabled):active{transform:scale(.94)}
.bit.on{background:var(--pill);border-color:var(--pill);color:var(--on-pill)}
.bit.on small{color:inherit;opacity:.7}
.bit.bad{border-color:var(--bad)}
.bitrow.ghost .bit{opacity:.75}
.bitsum{margin-top:10px;font-size:15px}
.olist{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.oitem{display:flex;align-items:center;gap:12px;background:var(--card-2);border:2px solid transparent;border-radius:var(--r-md);padding:12px 12px 12px 14px;cursor:grab;user-select:none}
.oitem.sel{border-color:var(--ink)}
.oitem.over{border-style:dashed;border-color:var(--muted)}
.oitem.dragging{opacity:.5}
.oitem.good{border-color:var(--good);background:var(--good-bg)}
.oitem.bad{border-color:var(--bad);background:var(--bad-bg)}
.grip{color:var(--muted);letter-spacing:-2px}
.otext{flex:1;font-weight:500}
.oarrows{display:flex;gap:4px}
.oarrows button{width:34px;height:34px;border-radius:10px;background:var(--card);border:1px solid var(--line);font-weight:700}
.oarrows button:disabled{opacity:.35}
.match{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mcol{display:grid;gap:8px;align-content:start}
.mitem{position:relative;text-align:left;background:var(--card-2);border:2px solid transparent;border-radius:var(--r-md);padding:12px 14px 12px 14px;font-weight:500;min-height:52px}
.mitem.sel{border-color:var(--ink)}
.mitem.linked{padding-left:44px}
.pairno{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;display:grid;place-items:center;color:#fff;font-style:normal;font-size:12px;font-weight:700}
.pc0 .pairno{background:#2F9BB3}.pc1 .pairno{background:#F15BB5}.pc2 .pairno{background:#FB5607}.pc3 .pairno{background:#6C5CE7}.pc4 .pairno{background:#1F9D62}.pc5 .pairno{background:#D9A21B}
.pc0{border-color:#2F9BB3}.pc1{border-color:#F15BB5}.pc2{border-color:#FB5607}.pc3{border-color:#6C5CE7}.pc4{border-color:#1F9D62}.pc5{border-color:#D9A21B}
.mitem.good{background:var(--good-bg)}.mitem.bad{background:var(--bad-bg);border-color:var(--bad)}
.pool{display:flex;flex-wrap:wrap;gap:8px;padding:12px;border-radius:var(--r-md);border:2px dashed var(--line);min-height:58px;align-items:center}
.schip{background:var(--card);border:2px solid var(--line);border-radius:99px;padding:8px 14px;font-weight:500;box-shadow:var(--shadow-sm);cursor:grab}
.schip.sel{border-color:var(--ink);transform:translateY(-2px)}
.schip.good{border-color:var(--good);background:var(--good-bg)}
.schip.bad{border-color:var(--bad);background:var(--bad-bg)}
.buckets{display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:10px;margin-top:12px}
.bucket{background:var(--card-2);border-radius:var(--r-md);padding:10px;min-height:120px;border:2px solid transparent;transition:border-color .15s}
.bucket.ready{border-color:var(--ink);border-style:dashed;cursor:pointer}
.bhead{font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2);margin-bottom:8px}
.bitems{display:flex;flex-wrap:wrap;gap:6px}
.gatebox{display:grid;gap:12px}
.switches{display:flex;gap:10px;flex-wrap:wrap}
.swt{display:inline-flex;align-items:center;gap:10px;padding:8px 16px 8px 8px;border-radius:99px;background:var(--card-2);border:2px solid var(--line);font-family:var(--mono);font-size:15px}
.swt .knob{width:30px;height:18px;border-radius:99px;background:var(--line);position:relative}
.swt .knob::after{content:"";position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:#fff;transition:transform .15s}
.swt.on{border-color:#F0A35E}
.swt.on .knob{background:#F0A35E}
.swt.on .knob::after{transform:translateX(12px)}
.circuit{overflow-x:auto;background:var(--card-2);border-radius:var(--r-md);padding:10px}
.circuit svg{display:block;max-width:none}
.circuit .wire{fill:none;stroke-width:3;stroke-linejoin:round}
.circuit .wn{stroke:var(--muted)}.circuit .w0{stroke:var(--muted);stroke-dasharray:5 4;opacity:.7}.circuit .w1{stroke:#E8871E}
.circuit .gate path,.circuit .gate circle{fill:var(--card);stroke:var(--ink);stroke-width:2.5}
.circuit text{font-family:var(--mono);font-size:9px;font-weight:700;fill:var(--ink)}
.circuit .leaf circle{fill:var(--card);stroke:var(--ink);stroke-width:2.5}
.circuit .leaf text,.circuit .lamp text{font-size:13px;text-anchor:middle}
.circuit .leaf.on circle{fill:#F0A35E}
.circuit .lamp circle{fill:var(--card);stroke:var(--ink);stroke-width:2.5}
.circuit .lamp.lit circle{fill:#FFD84D;filter:drop-shadow(0 0 8px #FFD84D)}
.tt-wrap{overflow-x:auto}
.ttable{border-collapse:separate;border-spacing:0;font-family:var(--mono);min-width:200px}
.ttable th,.ttable td{padding:6px 18px;text-align:center;border-bottom:1px solid var(--line)}
.ttable th{font-size:13px;color:var(--muted)}
.ttable .q{border-left:2px solid var(--ink)}
.ttcell{width:44px;height:36px;border-radius:10px;border:2px dashed var(--muted);font-family:var(--mono);font-weight:700;font-size:17px}
.ttcell.set{border-style:solid;border-color:var(--ink);background:var(--card)}
.ttcell.good{border-color:var(--good);background:var(--good-bg)}
.ttcell.bad{border-color:var(--bad);background:var(--bad-bg)}

/* ---------- modal ---------- */
.modal-wrap{position:fixed;inset:0;background:rgba(10,12,14,.5);display:grid;place-items:center;padding:16px;z-index:40;backdrop-filter:blur(4px)}
.modal{background:var(--surface);border-radius:var(--r-xl);padding:26px;width:min(560px,100%);max-height:calc(100vh - 32px);overflow:auto;box-shadow:var(--shadow)}
.levelup{text-align:center;display:grid;gap:10px;justify-items:center}
.ring.big{width:120px;height:120px}
.ring.big i{width:98px;height:98px;font-size:40px}
.cred{font-size:22px;background:var(--card-2);border-radius:14px;padding:14px;text-align:center;user-select:all}
.cred-table{max-height:320px}

/* ---------- badges ---------- */
.badge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
.badge{background:transparent;border:2px dashed var(--line);border-radius:var(--r-md);padding:14px 10px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:4px}
.badge:not(.earned) .hex{background:var(--line)}
.badge:not(.earned) .hex span{color:var(--muted)}
.badge:not(.earned) b{color:var(--ink-2)}
.badge.earned{background:var(--card);border:2px solid transparent;box-shadow:var(--shadow-sm)}
.badge .hex{width:58px;height:64px;clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);background:linear-gradient(135deg,#C2410C,#B0306E 55%,#5B3FD1);display:grid;place-items:center;margin-bottom:4px}
.badge .hex span{font-family:var(--mono);font-weight:700;color:#fff;font-size:14px}
.badge b{font-size:14px}
.badge small{font-size:12px;color:var(--muted);line-height:1.3}
.new-badges{margin-top:18px}
.new-badges h3{margin-bottom:10px}

/* ---------- tasks ---------- */
.target.task .tt small{display:block}
.target.is-done{opacity:.7}
.due.bad,.due-chip.bad{color:var(--bad)}
.due.warn,.due-chip.warn{color:var(--warn)}
.due-chip{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}
.task-list{display:grid;gap:14px}
.task-card{display:flex;gap:16px;align-items:center;background:var(--card);border-radius:var(--r-lg);padding:14px;box-shadow:var(--shadow-sm)}
.task-card .sw{width:96px;height:96px;border-radius:var(--r-md);background-size:cover;flex:none}
.tc-body{flex:1;min-width:0;display:grid;gap:4px}
.tc-top{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:13px}
.tc-note{font-size:14px;color:var(--ink-2);background:var(--card-2);border-radius:10px;padding:8px 10px}
.tc-prog{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.tc-prog .bar{flex:1;max-width:220px}
.join .nick{margin-top:8px}

/* ---------- profile ---------- */
.profile-hd{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.stat-row.wide{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));margin:22px 0}
.stat-row.wide .stat,.stat.card{background:var(--card)}

/* ---------- teacher ---------- */
.class-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.class-card{background:var(--card);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);position:relative;cursor:pointer;transition:transform .2s}
.class-card:hover{transform:translateY(-2px)}
.cc-cover{height:130px;background-size:cover;background-position:center;padding:12px;display:flex;align-items:flex-end;color:#fff}
.cc-body{padding:14px 70px 16px 16px}
.cc-body h3{font-size:19px}
.class-card .go-dark{position:absolute;right:14px;bottom:16px}
.class-hero{height:220px;border-radius:var(--r-xl);background-size:cover;background-position:center;position:relative;display:flex;align-items:flex-end;padding:22px;color:#fff;overflow:hidden}
.class-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 20%,rgba(0,0,0,.55))}
.class-hero > *{position:relative;z-index:1}
.class-hero .back{position:absolute;top:18px;left:18px;z-index:2}
.ch-info h1{color:#fff}
.joincode{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px}
.joincode small{opacity:.85}
.joincode b{font-size:26px;letter-spacing:.12em;background:rgba(0,0,0,.35);padding:2px 12px;border-radius:10px}
.joincode .glass{color:#fff;font-weight:600;padding:5px 12px}
.assign-row{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:12px 4px}
.assign-row + .assign-row{border-top:1px solid var(--line)}
.assign-row .tt{flex:1;min-width:0}
.assign-row .tt b{display:block;font-weight:600}
.assign-row .tt small{color:var(--muted)}
.ar-prog{width:120px;display:grid;gap:4px;flex:none}
.ar-prog small{color:var(--muted)}
.task-form{margin-bottom:18px}
.table-wrap{overflow-x:auto;background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}
.dtable{width:100%;border-collapse:collapse;font-size:14px}
.dtable th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.dtable td{padding:10px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.dtable tr:last-child td{border-bottom:0}
.dtable .r{text-align:right}.dtable .c{text-align:center}
.who{display:inline-flex;align-items:center;gap:10px;font-weight:500}
.who .av-sm{width:28px;height:28px;font-size:12px}
.act-btns{display:inline-flex;gap:12px}
.chip-s{font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px;background:var(--card-2)}
.chip-s.good{background:var(--good-bg);color:var(--good)}.chip-s.bad{background:var(--bad-bg);color:var(--bad)}.chip-s.warn{color:var(--warn)}.chip-s.muted{color:var(--muted)}
.heat td,.heat th{padding:6px}
.hm{display:grid;place-items:center;width:40px;height:30px;margin:auto;border-radius:8px;font-size:12px;font-weight:700;background:color-mix(in srgb,#167A4B calc(var(--v) * 100%),var(--card-2));color:var(--ink)}
.hm.hot{color:#fff}

@media (max-width:1180px){.auth{grid-template-columns:1fr 1fr}}
@media (max-width:760px){
  .nav-btn.desk{display:none}
  .auth{grid-template-columns:1fr}
  .auth-art{min-height:260px;padding:24px}
  .form.grid2{grid-template-columns:1fr}
  .match{grid-template-columns:1fr 1fr;gap:8px}
  .mitem{font-size:14px;padding:10px}
  .buckets{grid-template-columns:1fr 1fr}
  .bit b{font-size:18px}
  .bitrow{gap:4px}
  .task-card .sw{width:64px;height:64px}
  .class-hero{height:200px}
  .joincode b{font-size:20px}
  .ar-prog{width:80px}
  .assign-row .due-chip{display:none}
}
.yay{text-align:center;display:grid;gap:10px;justify-items:center;padding:6px 0}
.yay-stars{font-size:28px;letter-spacing:10px;color:#D9A21B}
.yay-title{font-size:clamp(26px,4vw,34px);line-height:1.2}
.yay-big{display:inline-block;background:linear-gradient(90deg,#C2410C,#B0306E,#5B3FD1);color:#fff;border-radius:12px;padding:2px 12px;margin-right:4px;animation:yay .9s cubic-bezier(.2,1.6,.4,1) both}
@keyframes yay{0%{transform:scale(.3) rotate(-8deg);opacity:0}100%{transform:scale(1) rotate(0);opacity:1}}
/* ---------- Coding Lab ---------- */
.lab-hero{height:auto;min-height:260px;display:flex;align-items:flex-end;padding:28px;color:#fff;overflow:hidden}
.lab-hero::after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(90deg,rgba(0,0,0,.72),rgba(0,0,0,.25))}
.lab-hero-text{position:relative;z-index:1;display:grid;gap:10px;max-width:560px}
.lab-hero h1{color:#fff}
.lab-hero .glass{width:fit-content}
.lab-prog{display:flex;align-items:center;gap:12px;margin-top:6px}
.lab-prog .bar{flex:1;max-width:260px;background:rgba(255,255,255,.25)}
.lab-prog .bar > i{background:#4FD894}
.lab-cta{margin:18px 0 6px}
.code-tile .thumb{display:flex;align-items:center;justify-content:center;padding:14px}
.code-glyph{background:rgba(12,14,16,.72);color:#E7F9EE;border-radius:10px;padding:6px 12px;font-size:15px;text-align:center}
.code-tile .t-meta{padding-top:2px}
.lvl-dots{display:inline-flex;gap:4px}
.lvl-dots i{width:10px;height:10px;border-radius:3px;background:var(--line)}
.lvl-dots i.on{background:var(--good)}

.ide{display:grid;gap:14px;max-width:1400px}
.ide-top{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.ide-title{flex:1;min-width:0}
.ide-title h1{font-size:clamp(22px,2.6vw,30px)}
.ide-actions{display:flex;gap:8px}
.cta.small{padding:11px 18px;font-size:15px;width:auto}
.py-status{font-size:12px;font-weight:600;padding:4px 10px;border-radius:99px;background:var(--card);color:var(--muted);white-space:nowrap}
.py-status.ready{color:var(--good)}
.py-status.loading{color:var(--warn)}
.py-status.error{color:var(--bad)}
.ide-grid{display:grid;grid-template-columns:minmax(260px,360px) minmax(0,1fr);gap:14px;align-items:start}
.ide-brief{position:sticky;top:16px;max-height:calc(100vh - 32px);overflow:auto;display:grid;gap:10px;align-content:start}
.ide-brief h3{margin:8px 0 0;font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-2)}
.brief{font-size:16px}
.rules{margin:0;padding-left:18px;display:grid;gap:4px}
.example{background:var(--card-2);border-radius:12px;padding:10px 12px;display:grid;gap:6px}
.example pre{margin:2px 0 0;font-family:var(--mono);font-size:13px;white-space:pre-wrap;word-break:break-word}
.example .k{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.hint{background:var(--card-2);border-radius:12px;padding:10px 12px;font-size:14px}
.ide-main{display:grid;gap:14px;min-width:0}
.editor-wrap{border-radius:var(--r-lg);overflow:hidden;background:#0F1419;box-shadow:var(--shadow-sm)}
.editor-bar{display:flex;align-items:center;gap:10px;padding:8px 14px;background:#161C22;color:#9FB0BF;font-size:13px}
.editor-bar .link{color:#C9D6E2}
.spacer{flex:1}
#editor .CodeMirror{height:clamp(260px,46vh,560px);font-family:var(--mono);font-size:15px;line-height:1.55}
.plain-editor{width:100%;height:clamp(260px,46vh,560px);border:0;outline:none;resize:vertical;background:#0F1419;color:#E6EDF3;font-family:var(--mono);font-size:15px;padding:12px;tab-size:4}
.ide-out{padding:12px 14px}
.tabs.slim{margin:0 0 10px;align-items:center}
.tabs.slim .tab{padding:7px 16px;font-size:14px}
#testSum{font-variant-numeric:tabular-nums;opacity:.8}
#testSum.ok{color:var(--good);opacity:1}
.console{margin:0;min-height:140px;max-height:320px;overflow:auto;background:#0F1419;color:#E6EDF3;border-radius:12px;padding:12px 14px;font-family:var(--mono);font-size:14px;line-height:1.5;white-space:pre-wrap;word-break:break-word}
.console .con-err{color:#FF8A80}
.console .con-done{color:#8FA3B5}
.con-in{display:flex;gap:8px;margin-top:8px}
.con-in input{flex:1;min-width:0;font-family:var(--mono);font-size:15px;padding:10px 14px;border-radius:12px;border:2px solid var(--good);background:var(--card-2);color:var(--ink);outline:none}
.tests{display:grid;gap:8px}
.test-score{font-size:15px;padding:4px 2px}
.test-score.all{color:var(--good);font-weight:700}
.test{display:flex;gap:12px;align-items:flex-start;background:var(--card-2);border-radius:12px;padding:10px 12px}
.test .tt{flex:1;min-width:0;display:grid;gap:2px}
.test .why{font-size:14px;color:var(--ink-2);white-space:pre-wrap}
.test details pre{background:#0F1419;color:#E6EDF3;border-radius:10px;padding:10px;font-family:var(--mono);font-size:13px;white-space:pre-wrap;margin:6px 0 0}
.tick.no{background:var(--bad);border-color:var(--bad);color:var(--on-bad)}
.codeview{margin:0;background:#0F1419;color:#E6EDF3;border-radius:12px;padding:14px 16px;font-family:var(--mono);font-size:13.5px;line-height:1.55;white-space:pre;overflow:auto;max-height:420px;tab-size:4}

/* CodeMirror theme (dark in both app themes, like most code editors) */
.cm-s-bitwise.CodeMirror{background:#0F1419;color:#E6EDF3}
.cm-s-bitwise .CodeMirror-gutters{background:#0F1419;border-right:1px solid #22303C}
.cm-s-bitwise .CodeMirror-linenumber{color:#8A9BAA}
.cm-s-bitwise .CodeMirror-cursor{border-left:2px solid #4FD894}
.cm-s-bitwise div.CodeMirror-selected,.cm-s-bitwise .CodeMirror-focused div.CodeMirror-selected{background:#264F78}
.cm-s-bitwise .CodeMirror-activeline-background{background:#161C22}
.cm-s-bitwise .cm-keyword{color:#FF7B72}.cm-s-bitwise .cm-builtin{color:#79C0FF}.cm-s-bitwise .cm-def{color:#D2A8FF}
.cm-s-bitwise .cm-string{color:#A5D6FF}.cm-s-bitwise .cm-number{color:#F2CC60}.cm-s-bitwise .cm-comment{color:#8B9CAB;font-style:italic}
.cm-s-bitwise .cm-operator{color:#FFA657}.cm-s-bitwise .cm-variable-2{color:#FFA657}.cm-s-bitwise .cm-property{color:#7EE787}
.cm-s-bitwise .CodeMirror-matchingbracket{color:#fff!important;background:#2F4A3A;outline:1px solid #4FD894}
.cm-errline{background:rgba(255,107,97,.18)!important}

/* ---------- teacher analytics ---------- */
.search.inset{margin-top:10px;box-shadow:none;background:var(--card-2)}
.link-plain{text-align:left}
.link-plain:hover{text-decoration:underline}
.meter{display:inline-block;width:70px;height:8px;border-radius:99px;background:var(--line);overflow:hidden;vertical-align:middle;margin-right:8px}
.meter i{display:block;height:100%;border-radius:inherit}
.tbar{display:inline-block;width:60px;height:6px;border-radius:99px;background:var(--line);vertical-align:middle;margin-right:8px;overflow:hidden}
.tbar i{display:block;height:100%;background:var(--ink-2)}
.dtable.answers td{white-space:normal;vertical-align:top}
.qcell{min-width:220px;max-width:360px}
.clamp{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ans{max-width:240px;white-space:pre-wrap!important;word-break:break-word;font-size:13px}
.muted-t{color:var(--muted)}
.good-t{color:var(--good)}
.wrong-row td:first-child{box-shadow:inset 3px 0 0 var(--bad)}
.att-list{padding:6px 14px}
.att-list.inner{padding:0;margin-bottom:10px}
.att + .att{border-top:1px solid var(--line)}
.att-head{display:grid;grid-template-columns:minmax(0,1fr) auto auto auto 22px;gap:14px;align-items:center;width:100%;text-align:left;padding:12px 2px}
.att-head.s{grid-template-columns:minmax(0,1fr) auto auto auto auto 22px}
.att-cols{display:grid;grid-template-columns:minmax(0,1fr) auto auto auto 22px;gap:14px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;padding:6px 2px 0}
.att-head .tt{min-width:0}
.att-head .tt b{display:block;font-weight:600}
.att.open .chev{transform:rotate(180deg)}
.att-score{font-weight:700}
.att-body{padding:4px 0 14px;display:grid;gap:10px}
.code-sub{display:grid;gap:10px}
.code-meta{display:flex;gap:14px;flex-wrap:wrap;align-items:center;font-size:14px}
.test-chips{display:flex;gap:6px;flex-wrap:wrap}
.picker{position:relative}
.pick-hits{display:grid;gap:4px;margin-top:6px}
.pick-hit{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:8px 12px;border-radius:10px;background:var(--card-2);border:1px solid var(--line)}
.pick-hit:hover,.pick-hit:focus-visible{border-color:var(--ink)}
.pick-hit small{color:var(--muted)}
.pick-chip{display:inline-flex;gap:8px;align-items:baseline;background:var(--pill);color:var(--on-pill);border-radius:99px;padding:6px 14px;font-weight:600;margin-top:6px}
.pick-chip small{opacity:.75;font-weight:500}
.pick-list{display:grid;gap:8px;margin-top:12px}

@media (max-width:1000px){
  .ide-grid{grid-template-columns:1fr}
  .ide-brief{position:static;max-height:none}
}
@media (max-width:760px){
  .ide-actions{width:100%}
  .ide-actions .cta{flex:1}
  .att-head{grid-template-columns:minmax(0,1fr) auto 22px}
  .att-head > :nth-child(3),.att-head > :nth-child(4),.att-cols{display:none}
  #editor .CodeMirror{font-size:14px}
}
.chip-s.kind-debug{background:#FDE7DC;color:#9A3412}
.chip-s.kind-fill{background:#DDF4F0;color:#0F5E57}
.kind-note{border-radius:12px;padding:10px 12px;font-size:14px}
.kind-note.kind-debug{background:#FDE7DC;color:#7C2D12}
.kind-note.kind-fill{background:#DDF4F0;color:#0F4F49}
/* ---------- Task Library (File Explorer style) ---------- */
:root{--ex-hover:#E5F3FF;--ex-sel:#CCE8FF;--ex-sel-b:#99D1FF;--ex-accent:#0067C0}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--ex-hover:#26323D;--ex-sel:#1D4466;--ex-sel-b:#2F6FA3;--ex-accent:#6CB8FF}}
:root[data-theme="dark"]{--ex-hover:#26323D;--ex-sel:#1D4466;--ex-sel-b:#2F6FA3;--ex-accent:#6CB8FF}

.explorer{position:relative;display:flex;flex-direction:column;height:calc(100vh - 64px);min-height:560px;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);font-size:14px}
.ex-ico{display:inline-grid;place-items:center;width:22px;height:22px;flex:none}
.ex-ico svg,.tn-ico svg,.big-ico svg,.pane-ico svg{width:100%;height:100%;display:block}
.ex-ico.sm{width:18px;height:18px}.ex-ico.xs{width:15px;height:15px}
.ex-titlebar{display:flex;align-items:center;gap:10px;padding:8px 14px;border-bottom:1px solid var(--line);font-size:13px;background:var(--card-2)}
.ex-titlebar b{font-weight:600}
.ex-ribbon{display:flex;align-items:center;gap:2px;padding:6px 10px;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.ex-ribbon::-webkit-scrollbar{display:none}
.rb{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border-radius:6px;white-space:nowrap;font-size:13.5px;border:1px solid transparent}
.rb svg{width:17px;height:17px}
.rb:hover:not(:disabled){background:var(--ex-hover)}
.rb:disabled{color:var(--muted);cursor:default}
.rb.on{background:var(--ex-sel);border-color:var(--ex-sel-b)}
.rb.primary{background:var(--pill);color:var(--on-pill);font-weight:600}
.rb.primary:hover:not(:disabled){background:var(--pill);opacity:.9}
.rb.primary:disabled{background:var(--line);color:var(--muted)}
.rb-sep{width:1px;height:22px;background:var(--line);margin:0 6px;flex:none}
.ex-addr{display:flex;align-items:center;gap:4px;padding:6px 10px;border-bottom:1px solid var(--line)}
.ex-nb{width:32px;height:32px;border-radius:6px;display:grid;place-items:center;flex:none}
.ex-nb svg{width:17px;height:17px}
.ex-nb:hover:not(:disabled){background:var(--ex-hover)}
.ex-nb:disabled{color:var(--line);cursor:default}
.ex-crumbs{flex:1;min-width:0;display:flex;align-items:center;height:34px;border:1px solid var(--line);border-radius:6px;padding:0 6px;margin-left:4px;overflow:hidden;white-space:nowrap;background:var(--card)}
.ex-crumbs .ex-ico{margin-right:4px}
.crumb{padding:4px 6px;border-radius:4px;font-size:13.5px}
.crumb:hover,.crumb-chev:hover{background:var(--ex-hover)}
.crumb-chev{padding:4px 5px;border-radius:4px;color:var(--muted)}
.crumb-srch{margin-left:6px;color:var(--muted);font-size:13px}
.ex-search{display:flex;align-items:center;gap:6px;width:min(260px,32%);height:34px;border:1px solid var(--line);border-radius:6px;padding:0 10px;margin-left:6px;background:var(--card)}
.ex-search svg{width:15px;height:15px;color:var(--muted);flex:none}
.ex-search input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:13.5px}
.ex-search:focus-within{border-color:var(--ex-accent);box-shadow:inset 0 -2px 0 var(--ex-accent)}
.ex-body{flex:1;min-height:0;display:grid;grid-template-columns:250px minmax(0,1fr)}
.ex-body.with-pane{grid-template-columns:250px minmax(0,1fr) 300px}
.ex-nav{border-right:1px solid var(--line);overflow:auto;padding:8px 6px 16px;font-size:13.5px}
.nav-h{font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:10px 8px 4px}
.tn-row{display:flex;align-items:center;padding-left:calc(var(--d) * 14px)}
.tw{width:18px;height:26px;flex:none;color:var(--muted);font-size:11px}
.tw:hover{color:var(--ink)}
.tn{flex:1;min-width:0;display:flex;align-items:center;gap:7px;padding:4px 8px;border-radius:4px;text-align:left;border:1px solid transparent}
.tn:hover{background:var(--ex-hover)}
.tn.on{background:var(--ex-sel);border-color:var(--ex-sel-b)}
.tn-ico{width:18px;height:18px;flex:none;display:grid}
.tn-ico.qa{color:var(--ex-accent)}
.tn-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cnt{margin-left:auto;background:var(--pill);color:var(--on-pill);border-radius:99px;font-size:11px;font-weight:700;padding:1px 7px}
.ex-main{overflow:auto;outline:none;position:relative}
.ex-main:focus-visible{box-shadow:inset 0 0 0 2px var(--ex-accent)}
.ex-table{width:100%;border-collapse:collapse;font-size:13.5px}
.ex-table thead th{position:sticky;top:0;z-index:1;background:var(--card);text-align:left;font-weight:500;color:var(--muted);padding:7px 10px;border-bottom:1px solid var(--line);white-space:nowrap;cursor:default}
.ex-table thead th + th{box-shadow:inset 1px 0 0 var(--line)}
.ex-table thead th[data-sortk]{cursor:pointer}
.ex-table thead th[data-sortk]:hover{background:var(--ex-hover)}
.sort-ar{font-size:9px;margin-left:6px;color:var(--ex-accent)}
.ex-table td{padding:4px 10px;white-space:nowrap;border:1px solid transparent;border-width:1px 0}
.ex-table td.ck,.ex-table th.ck{width:34px;padding-right:0}
.ex-row{cursor:default;user-select:none}
.ex-row:hover td{background:var(--ex-hover)}
.ex-row.checked td{background:var(--ex-sel)}
.ex-row.focus td{border-color:var(--ex-sel-b)}
.ex-row.checked .muted,.ex-tile.checked .muted{color:var(--ink-2)}
.ex-row.focus td:first-child{box-shadow:inset 2px 0 0 var(--ex-accent)}
.ex-row .nm{display:flex;align-items:center;gap:8px}
.ex-name{overflow:hidden;text-overflow:ellipsis}
.ex-table input[type=checkbox],.ex-grid input[type=checkbox]{width:15px;height:15px;accent-color:var(--ex-accent);cursor:pointer}
.ex-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:4px;padding:10px}
.ex-tile{position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 6px 10px;border-radius:4px;border:1px solid transparent;text-align:center;user-select:none;cursor:default}
.ex-tile:hover{background:var(--ex-hover)}
.ex-tile.checked{background:var(--ex-sel)}
.ex-tile.focus{border-color:var(--ex-sel-b)}
.tile-ck{position:absolute;top:6px;left:6px;opacity:0}
.ex-tile:hover .tile-ck,.ex-tile.checked .tile-ck,.tile-ck:focus-visible{opacity:1}
.big-ico{width:58px;height:58px;display:grid}
.tile-name{font-size:12.5px;line-height:1.3;max-width:100%;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.ex-empty{padding:40px 20px;text-align:center;color:var(--muted)}
.ex-pane{border-left:1px solid var(--line);overflow:auto;padding:18px 16px;display:flex;flex-direction:column;gap:10px;font-size:14px}
.pane-ico{width:72px;height:72px;margin:6px auto 4px;display:grid}
.ex-pane h3{text-align:center;font-size:17px}
.ex-pane > .muted{text-align:center;font-size:13px}
.ex-pane > .lvl-dots{justify-content:center}
.pane-facts{display:flex;flex-wrap:wrap;gap:6px}
.pane-facts span{font-size:12px;background:var(--card-2);border-radius:99px;padding:3px 10px}
.pane-notes{margin:0;padding-left:18px;display:grid;gap:4px;font-size:13px;color:var(--ink-2)}
.pane-btns{display:grid;gap:8px;margin-top:4px}
.ex-status{display:flex;align-items:center;gap:10px;padding:4px 12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-2);min-height:30px}
.sb-sep{width:1px;height:14px;background:var(--line)}
.ex-vb{width:26px;height:24px;border-radius:4px;display:grid;place-items:center;color:var(--muted)}
.ex-vb svg{width:15px;height:15px}
.ex-vb:hover{background:var(--ex-hover)}
.ex-vb.on{background:var(--ex-sel);color:var(--ink)}
.ex-menu{position:absolute;z-index:30;min-width:220px;max-width:300px;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 32px -8px rgba(0,0,0,.35);padding:4px;display:grid}
.mi{display:flex;justify-content:space-between;gap:16px;text-align:left;padding:7px 12px;border-radius:4px;font-size:13.5px}
.mi:hover:not(:disabled){background:var(--ex-hover)}
.mi:disabled{color:var(--muted)}
.mi.bold{font-weight:700}
.mi-k{color:var(--muted);font-size:12px}
.mi-sep{height:1px;background:var(--line);margin:4px 6px}

/* New task dialog */
.nt-items{list-style:none;margin:0;padding:0;display:grid;gap:6px;max-height:260px;overflow:auto}
.nt-item{display:flex;align-items:center;gap:10px;background:var(--card-2);border-radius:10px;padding:8px 10px}
.nt-item .tt{flex:1;min-width:0}
.nt-item .tt b{display:block;font-weight:600;font-size:14px}
.nt-btns{display:flex;gap:4px}
.nt-btns button{width:28px;height:28px;border-radius:8px;background:var(--card);border:1px solid var(--line);font-size:13px}
.nt-btns button:disabled{opacity:.35}
.form .grid2.form{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* Student multi-item task cards */
.task-card.multi{align-items:flex-start}
.task-items{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:6px}
.task-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:var(--card-2);border:1px solid transparent;border-radius:12px;padding:8px 12px}
.task-item:hover{border-color:var(--ink-2)}
.task-item .tt{flex:1;min-width:0}
.task-item .tt b{display:block;font-weight:600;font-size:14px}
.task-item .tt small{color:var(--muted)}
.task-item.next{border-color:var(--ink);background:var(--card)}
.task-item.done .tt b{color:var(--ink-2)}
/* Teacher task report items */
.task-items-t{list-style:none;margin:0;padding:10px 14px;display:grid;gap:4px}
.task-items-t li{display:flex;align-items:center;gap:12px;padding:6px 0}
.task-items-t li + li{border-top:1px solid var(--line)}
.task-items-t .tt{flex:1;min-width:0}
.task-items-t .tt b{display:block;font-weight:600}
.item-chips{display:flex;flex-wrap:wrap;gap:6px}
.item-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:99px;padding:4px 10px 4px 6px;font-size:13px;max-width:100%}
.item-chip b{margin-left:4px}
.item-chip.good{border-color:var(--good);background:var(--good-bg)}
.item-chip.muted{color:var(--muted)}

@media (max-width:1180px){.ex-body.with-pane{grid-template-columns:220px minmax(0,1fr)}.ex-pane{display:none}}
@media (max-width:760px){
  .explorer{height:auto;min-height:0}
  .ex-body,.ex-body.with-pane{grid-template-columns:1fr}
  .ex-nav{display:none}
  .ex-main{max-height:none}
  .ex-search{width:100%;margin:6px 0 0}
  .ex-addr{flex-wrap:wrap}
  .ex-table th:nth-child(4),.ex-table td:nth-child(4),.ex-table th:nth-child(6),.ex-table td:nth-child(6){display:none}
}
/* School directory, "Managed by your School" labels, notices and the message centre */
.managed-badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:700;padding:3px 10px 3px 8px;border-radius:99px;background:color-mix(in srgb,var(--plat) 12%,var(--card));color:var(--plat);white-space:nowrap;vertical-align:middle}
.managed-badge svg{flex:none}
:root[data-theme="dark"] .managed-badge{color:#A9B2FF}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .managed-badge{color:#A9B2FF}}
.managed-note{border:1px solid color-mix(in srgb,var(--plat) 30%,var(--line));background:color-mix(in srgb,var(--plat) 6%,var(--card))}
.managed-note h3{margin:0 0 8px}.managed-note p{margin:4px 0 0}
.lock-note{font-size:13px;color:var(--muted);margin-top:6px}

.dir-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:20px 0 14px}
.dir-bar .dir-search{flex:1 1 260px;margin:0}
.dir-bar select{min-height:44px;border-radius:99px;border:1px solid var(--line);background:var(--card);color:var(--ink);padding:0 14px;font:inherit;max-width:100%}
.dir-bulk{display:flex;flex-wrap:wrap;align-items:center;gap:8px;background:var(--pill);color:var(--on-pill);border-radius:var(--r-md);padding:10px 14px;margin-bottom:12px}
.dir-bulk .muted{color:color-mix(in srgb,var(--on-pill) 70%,var(--pill))}
.dir-bulk .chip{padding:6px 14px}
.dir-bulk .link{color:var(--on-pill)}
.dtable .ck{width:36px}
.dtable input[type=checkbox],.check-row input{width:18px;height:18px;accent-color:var(--pill)}
.dtable td .who span{line-height:1.3}

.check-list{display:grid;gap:2px;max-height:220px;overflow:auto;border:1px solid var(--line);border-radius:var(--r-sm);padding:6px 10px;background:var(--card-2)}
.check-list.tall{max-height:320px;margin-top:10px}
.check-row{display:flex!important;align-items:center;gap:10px;padding:7px 2px;font-weight:500;cursor:pointer;margin:0!important}
.check-row .mono{font-size:13px}

.joincode.dark b{background:var(--card-2);color:var(--ink);font-size:20px}

.notice-list{display:grid;gap:12px}
.notice{background:var(--card);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--shadow-sm);border-left:4px solid transparent}
.notice.unread{border-left-color:var(--plat)}
.notice.pinned{background:color-mix(in srgb,var(--gold) 8%,var(--card))}
.notice .n-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.notice .n-top b{font-size:16px;flex:1;min-width:0}
.notice .n-top .muted{font-size:12px}
.notice .n-from{font-size:13px;margin:2px 0 6px}
.notice p{white-space:pre-wrap;margin:6px 0 0;overflow-wrap:anywhere}
.notice .act-btns{margin-top:8px}
.dot-new{width:9px;height:9px;border-radius:50%;background:var(--plat);flex:none}
.notice-teaser{cursor:pointer;margin-bottom:16px;border:1px solid color-mix(in srgb,var(--plat) 30%,var(--line))}
.notice-teaser h3{display:flex;align-items:center;gap:6px;font-size:15px}
.notice-teaser p{margin:2px 0 0;font-size:13px}

.seg.small{margin-top:0}
.seg.small button{padding:7px;font-size:14px}
@media (max-width:760px){
  .rail{padding:0 6px}
  .rail .nav-btn{width:44px;height:44px}
  .rail .nav-btn svg{width:21px;height:21px}
  .dir-bar .cta{width:100%}
}

/* ---------- navigation rail: labels float above the page, and the rail always fits the window ---------- */
.rail{z-index:15}
@media (min-width:761px){.rail{height:calc(100dvh - 32px)}}
@media (min-width:761px) and (max-height:780px){
  .rail{gap:4px;padding:14px 0}
  .rail .logo{width:40px;height:40px;margin-bottom:6px;font-size:12px}
  .rail .nav-btn{width:46px;height:46px}
  .rail .nav-btn svg{width:21px;height:21px}
}
@media (min-width:761px) and (max-height:600px){
  .rail{gap:2px;padding:10px 0}
  .rail .logo{display:none}
  .rail .nav-btn{width:40px;height:40px}
  .rail .nav-btn svg{width:19px;height:19px}
}

/* ---------- loading animations ---------- */
.bitload{display:inline-flex;gap:6px}
.bitload > span{width:30px;height:40px;border-radius:10px;overflow:hidden;display:flex;flex-direction:column;background:var(--card);box-shadow:var(--shadow-sm)}
.bitload b{flex:none;height:40px;display:grid;place-items:center;font-family:var(--mono);font-size:20px;font-weight:700;color:var(--muted)}
.bitload b + b{background:linear-gradient(135deg,#F0A35E,#2F9BB3);color:#16181B}
.bitload > span > b:first-child{animation:bitflip var(--d) steps(1,end) infinite}
@keyframes bitflip{0%{margin-top:0}50%{margin-top:-40px}}
.bitload.sm{gap:3px;vertical-align:middle}
.bitload.sm > span{width:14px;height:18px;border-radius:5px;box-shadow:none;background:var(--card-2)}
.bitload.sm b{height:18px;font-size:10px}
.bitload.sm > span > b:first-child{animation-name:bitflip-sm}
@keyframes bitflip-sm{0%{margin-top:0}50%{margin-top:-18px}}
.splash .bitload{animation:splash-in .4s ease both}
.splash-msg{animation:splash-in .4s .15s ease both}
@keyframes splash-in{from{opacity:0;transform:translateY(6px)}}

.skel{display:grid;gap:10px;position:relative;padding-bottom:30px}
.skel i{display:block;height:58px;border-radius:var(--r-md);background:linear-gradient(90deg,var(--card) 25%,var(--card-2) 50%,var(--card) 75%);background-size:300% 100%;animation:shimmer 1.3s linear infinite}
.skel i:nth-child(2){width:86%;animation-delay:.12s}.skel i:nth-child(3){width:64%;animation-delay:.24s}
.skel-bits{position:absolute;left:0;bottom:0}
@keyframes shimmer{from{background-position:100% 0}to{background-position:-50% 0}}

.dots{display:inline-flex;gap:4px;align-items:center;height:1em}
.dots i{width:7px;height:7px;border-radius:50%;background:currentColor;animation:dot 1s ease-in-out infinite}
.dots i:nth-child(2){animation-delay:.15s}.dots i:nth-child(3){animation-delay:.3s}
@keyframes dot{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-4px)}}
.saving-note{display:flex;align-items:center;gap:8px}
.py-status.loading::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--warn);margin-right:6px;vertical-align:1px;animation:dot 1s ease-in-out infinite}

/* ---------- class progress grid ---------- */
.pg-legend{display:flex;flex-wrap:wrap;gap:14px;margin:4px 0 12px;font-size:13px;color:var(--ink-2)}
.pg-legend span{display:inline-flex;align-items:center;gap:6px}
.pg-legend .pcell{width:16px;height:16px;min-width:0;border-radius:5px;display:inline-block}
.pgrid th.tcol{min-width:120px;max-width:180px;white-space:normal;vertical-align:bottom;text-transform:none;letter-spacing:0;font-size:13px;color:var(--ink)}
.pgrid th.tcol button{display:block;text-align:left;font-weight:700;margin-bottom:4px}
.pgrid th.tcol small{font-size:11px}
.pgrid .stick{position:sticky;left:0;background:var(--card);z-index:1}
.pgrid td.c{text-align:center;padding:6px}
.pcell{min-width:64px;height:34px;border-radius:10px;font-weight:700;font-variant-numeric:tabular-nums;border:0;cursor:pointer;transition:transform .12s}
.pcell:hover{transform:scale(1.06)}
.pcell.done{background:#1F9D62;color:#fff}
.pcell.prog{background:#F2C230;color:#1D1A10}
.pcell.none{background:#D93A30;color:#fff}
.pcell.redo{background:#F2C230;color:#1D1A10;box-shadow:inset 0 0 0 2px #B07A00}
.modal.wide{width:min(920px,100%);max-height:88vh;overflow:auto}
.cellview .ci{border-top:1px solid var(--line);padding:14px 0}
.ci-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.ci-atts{margin:0 0 8px;flex-wrap:wrap}
.chip.small{padding:5px 12px;font-size:13px}
.redo-box{border:1px solid #E0B23A;background:color-mix(in srgb,#F2C230 14%,var(--card));border-radius:var(--r-sm);padding:10px 14px;margin:10px 0;display:grid;gap:4px;justify-items:start}
.redo-box p{margin:0;white-space:pre-wrap}
.redo-form{border-top:1px solid var(--line);padding-top:12px;margin-top:8px}
.saving-inline{display:inline-flex;align-items:center;gap:6px}
.err-t{color:var(--bad)}