/* ═══════════════════════════════════════════════════════════════════════════
   مسافة — the one design system for every public web surface
   (student /app, professor /prof, delegate /delegate, sign-in /login).

   One dark cinematic world: teal is structure, amber is the single bold
   accent, an aurora ground sits behind glass surfaces. Every portal reads as
   the same product because they all consume these tokens and components —
   never restyle a component inside a page; extend it here.

   Layers, top to bottom:
     1. tokens        4. forms         7. states (empty / error / skeleton)
     2. base          5. cards & rows  8. overlays (modal / toast)
     3. buttons       6. app shell     9. responsive
   ═══════════════════════════════════════════════════════════════════════ */

/* ── 1. tokens ─────────────────────────────────────────────────────────── */
:root{
  --void:#070A0F; --void-2:#0A0F16;
  --glass:rgba(18,26,37,.68); --glass-2:rgba(24,33,45,.9); --glass-3:rgba(255,255,255,.035);
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16); --line-3:rgba(255,255,255,.28);
  --fg:#EAF1F8; --fg-2:#A3B4C8; --fg-3:#7A8CA1; --fg-4:#4F5F72;
  --teal:#2CD0E2; --teal-2:#12ABBD; --teal-dim:rgba(44,208,226,.12); --teal-line:rgba(44,208,226,.28);
  --amber:#F6B23C; --amber-2:#E98C1B; --amber-dim:rgba(246,178,60,.13); --amber-line:rgba(246,178,60,.28);
  --ok:#4ADE80; --ok-dim:rgba(74,222,128,.1); --ok-line:rgba(74,222,128,.32);
  --warn:#FBBF24; --warn-dim:rgba(251,191,36,.1); --warn-line:rgba(251,191,36,.32);
  --bad:#F87171; --bad-dim:rgba(248,113,113,.09); --bad-line:rgba(248,113,113,.3);
  --r-sm:9px; --r:13px; --r-lg:18px; --r-xl:22px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:22px; --sp-6:30px;
  --shadow:0 30px 80px -40px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.05);
  --font:"Segoe UI","Dubai","SF Arabic","Tajawal","Noto Sans Arabic","Geeza Pro",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
  --side-w:240px; --tabbar-h:64px;
}

/* ── 2. base ───────────────────────────────────────────────────────────── */
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{background:var(--void);color:var(--fg);font-family:var(--font);font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;position:relative}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(48% 42% at 84% 6%,rgba(44,208,226,.18),transparent 70%),
    radial-gradient(45% 40% at 10% 96%,rgba(246,178,60,.13),transparent 70%),
    linear-gradient(160deg,#0A121B,#070A0F 60%)}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.35;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at 82% 10%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 82% 10%,#000,transparent 72%)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
::selection{background:rgba(44,208,226,.28)}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.ltr{direction:ltr;unicode-bidi:isolate}
.muted{color:var(--fg-3)} .muted-2{color:var(--fg-2)}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
.brand{display:flex;align-items:center;gap:10px}
.brand svg{flex:none;filter:drop-shadow(0 6px 16px rgba(44,208,226,.35))}
.brand span{font-size:1.1rem;font-weight:800;letter-spacing:-.02em}

/* ── 3. buttons ────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 20px;
  border-radius:var(--r);border:1px solid transparent;font-size:.95rem;font-weight:700;white-space:nowrap;
  background:var(--glass-3);color:var(--fg);transition:background .18s,border-color .18s,box-shadow .2s,transform .12s,opacity .18s}
.btn svg{width:17px;height:17px;flex:none;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.btn:hover{background:rgba(255,255,255,.07)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.55;cursor:default;box-shadow:none;transform:none}
.btn-primary{color:#241603;background:linear-gradient(135deg,var(--amber),var(--amber-2));font-weight:800;
  box-shadow:0 12px 30px -14px rgba(246,178,60,.6)}
.btn-primary:hover{background:linear-gradient(135deg,#F9BF55,var(--amber-2));box-shadow:0 16px 40px -14px rgba(246,178,60,.72)}
.btn-ghost{background:var(--teal-dim);color:var(--teal);border-color:var(--teal-line)}
.btn-ghost:hover{background:rgba(44,208,226,.18)}
.btn-soft{background:var(--glass-3);border-color:var(--line-2);color:var(--fg-2)}
.btn-soft:hover{color:var(--fg);border-color:var(--line-3)}
.btn-danger{background:var(--bad-dim);color:var(--bad);border-color:var(--bad-line)}
.btn-danger:hover{background:rgba(248,113,113,.16)}
.btn-ok{background:var(--ok-dim);color:var(--ok);border-color:var(--ok-line)}
.btn-ok:hover{background:rgba(74,222,128,.16)}
.btn-sm{height:38px;padding:0 14px;font-size:.85rem;border-radius:var(--r-sm)}
.btn-xs{height:32px;padding:0 11px;font-size:.8rem;border-radius:8px;gap:6px}
.btn-block{width:100%}
.btn-icon{width:42px;height:42px;padding:0;border-radius:var(--r-sm);border-color:var(--line-2);color:var(--fg-2)}
.btn-icon:hover{color:var(--fg);border-color:var(--line-3)}
.btn .spin{width:15px;height:15px;border-radius:50%;border:2px solid rgba(0,0,0,.18);border-top-color:currentColor;animation:sp .8s linear infinite;flex:none}
.btn-ghost .spin,.btn-soft .spin{border-color:rgba(255,255,255,.15);border-top-color:currentColor}
@keyframes sp{to{transform:rotate(360deg)}}
.link{color:var(--teal);font-weight:700;cursor:pointer;background:none;border:0;padding:0}
.link:hover{text-decoration:underline}

/* ── 4. forms ──────────────────────────────────────────────────────────── */
.fld{display:block;margin-bottom:15px}
.fld>span{display:flex;align-items:baseline;justify-content:space-between;gap:8px;font-size:.86rem;font-weight:650;margin-bottom:7px;color:var(--fg-2)}
.fld>span small{font-weight:400;color:var(--fg-3);font-size:.78rem}
.fld input,.fld select,.fld textarea{width:100%;height:50px;padding:0 15px;border-radius:var(--r);border:1px solid var(--line-2);
  background:rgba(9,13,19,.72);color:var(--fg);transition:border-color .18s,box-shadow .18s,background .18s}
.fld textarea{height:auto;min-height:110px;padding:12px 15px;resize:vertical;line-height:1.6}
.fld select{appearance:none;-webkit-appearance:none;padding-inline-end:40px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237A8CA1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;background-position:left 14px center}
.fld input::placeholder,.fld textarea::placeholder{color:var(--fg-4)}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--teal-2);background:rgba(9,13,19,.95);box-shadow:0 0 0 4px rgba(44,208,226,.14)}
.fld select:disabled,.fld input:disabled{opacity:.5;cursor:default}
.fld.bad input,.fld.bad select{border-color:var(--bad-line);box-shadow:0 0 0 4px rgba(248,113,113,.1)}
.fld-hint{font-size:.78rem;color:var(--fg-3);margin-top:6px;line-height:1.5}
.fld-hint.bad{color:var(--bad)}
.pw{position:relative}
.pw input{padding-inline-end:48px}
.pw .eye{position:absolute;top:50%;transform:translateY(-50%);inset-inline-end:6px;width:38px;height:38px;border:0;border-radius:8px;
  background:transparent;color:var(--fg-3);display:grid;place-items:center}
.pw .eye:hover{color:var(--fg);background:rgba(255,255,255,.06)}
.pw .eye svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.rowchk{display:flex;align-items:center;gap:9px;margin:2px 0 16px;font-size:.9rem;color:var(--fg-2);cursor:pointer;user-select:none}
.rowchk input{width:18px;height:18px;accent-color:var(--teal-2);margin:0}
.search{position:relative}
.search input{width:100%;height:46px;padding:0 44px;border-radius:var(--r);border:1px solid var(--line-2);background:rgba(9,13,19,.72);color:var(--fg)}
.search input:focus{outline:none;border-color:var(--teal-2);box-shadow:0 0 0 4px rgba(44,208,226,.14)}
.search svg{position:absolute;top:14px;inset-inline-start:15px;width:18px;height:18px;stroke:var(--fg-3);fill:none;stroke-width:1.9;stroke-linecap:round;pointer-events:none}

/* alerts */
.alert{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;line-height:1.55;margin:0 0 16px;padding:12px 14px;border-radius:var(--r-sm);border:1px solid var(--line-2);background:var(--glass-3);color:var(--fg-2)}
.alert svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.alert.err{color:#FCA5A5;border-color:var(--bad-line);background:var(--bad-dim)}
.alert.ok{color:var(--ok);border-color:var(--ok-line);background:var(--ok-dim)}
.alert.warn{color:var(--warn);border-color:var(--warn-line);background:var(--warn-dim)}
.alert.info{color:var(--teal);border-color:var(--teal-line);background:var(--teal-dim)}
.alert b{color:var(--fg)}
.alert .x{margin-inline-start:auto;border:0;background:none;color:inherit;opacity:.7;padding:0 2px;line-height:1;font-size:1.1rem}
.alert .x:hover{opacity:1}

/* ── 5. cards, chips, rows ─────────────────────────────────────────────── */
.card{border:1px solid var(--line);border-radius:var(--r-lg);padding:18px 20px;background:var(--glass);
  backdrop-filter:blur(12px) saturate(1.15);-webkit-backdrop-filter:blur(12px) saturate(1.15)}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.card-h h3{font-size:.98rem;font-weight:750}
.card-h .link{font-size:.82rem}
.chip{display:inline-flex;align-items:center;gap:5px;font-size:.72rem;font-weight:700;color:var(--fg-3);border:1px solid var(--line);
  padding:3px 10px;border-radius:20px;white-space:nowrap;line-height:1.5}
.chip.teal{color:var(--teal);background:var(--teal-dim);border-color:var(--teal-line)}
.chip.amber{color:var(--amber);background:var(--amber-dim);border-color:var(--amber-line)}
.chip.ok{color:var(--ok);background:var(--ok-dim);border-color:var(--ok-line)}
.chip.warn{color:var(--warn);background:var(--warn-dim);border-color:var(--warn-line)}
.chip.bad{color:var(--bad);background:var(--bad-dim);border-color:var(--bad-line)}
.chip.solid{color:#08090B;background:var(--teal);border-color:var(--teal)}
.chip svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chips>svg{width:16px;height:16px;flex:none;stroke:var(--fg-3);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.list{display:flex;flex-direction:column;gap:10px}
.item{border:1px solid var(--line);border-radius:var(--r-lg);padding:16px 18px;background:var(--glass);transition:border-color .16s}
.item:hover{border-color:var(--line-2)}
.item-h{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.item-t{font-weight:750;font-size:1rem;min-width:0}
.item-t small{color:var(--fg-3);font-weight:500;margin-inline-start:7px;font-size:.8rem}
.item-b{color:var(--fg-2);font-size:.92rem;margin-top:8px;white-space:pre-line;word-break:break-word}
.item-f{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px;align-items:center}
.item-f>svg,.fsec-h>svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
a.item,a.row{cursor:pointer}
.row{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid var(--line);font-size:.93rem}
.row:first-child{border-top:0}
.row .grow{flex:1;min-width:0}
.row .grow b{display:block;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .grow small{color:var(--fg-3);font-size:.8rem;display:block}
.row .time{color:var(--teal);font-weight:700;flex:none;direction:ltr;text-align:start;font-size:.85rem;line-height:1.35;min-width:46px}
.row .time small{display:block;color:var(--fg-3);font-weight:500;font-size:.72rem}
.row.done{opacity:.55}
.row.live .time{color:var(--amber)}
.stat{display:flex;align-items:center;gap:13px;padding:16px 18px}
.stat .ic{width:46px;height:46px;flex:none;border-radius:13px;display:grid;place-items:center;background:var(--teal-dim);border:1px solid var(--teal-line);color:var(--teal)}
.stat .ic svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.stat .ic.amber{background:var(--amber-dim);border-color:var(--amber-line);color:var(--amber)}
.stat .ic.bad{background:var(--bad-dim);border-color:var(--bad-line);color:var(--bad)}
.stat .k{font-size:1.5rem;font-weight:800;letter-spacing:-.03em;line-height:1.15}
.stat .l{font-size:.8rem;color:var(--fg-3);margin-top:2px}
.stat .k small{font-size:.8rem;font-weight:600;color:var(--fg-3);margin-inline-start:4px;letter-spacing:0}
.bar{height:7px;border-radius:20px;background:rgba(255,255,255,.07);overflow:hidden}
.bar>i{display:block;height:100%;width:0;border-radius:20px;background:var(--teal);transition:width .9s var(--ease)}
.bar>i.w{background:var(--warn)} .bar>i.b{background:var(--bad)} .bar>i.g{background:var(--ok)}
.pct{font-weight:800;font-size:1.05rem;direction:ltr;unicode-bidi:isolate}
.pct.g{color:var(--ok)} .pct.w{color:var(--warn)} .pct.b{color:var(--bad)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.divider{height:1px;background:var(--line);margin:18px 0}
.avatar{cursor:pointer;padding:0;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.95rem;flex:none;
  background:linear-gradient(140deg,#243141,#141B24);border:1px solid var(--line-2);color:var(--fg-2)}
.kv{display:flex;gap:10px;font-size:.9rem;padding:9px 0;border-top:1px solid var(--line)}
.kv:first-child{border-top:0}
.kv span:first-child{color:var(--fg-3);flex:none;min-width:110px}
.kv span:last-child{color:var(--fg);flex:1;min-width:0;word-break:break-word}
.seg{display:inline-flex;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:3px;background:var(--glass-3);gap:2px}
.seg button{height:32px;padding:0 13px;border:0;border-radius:7px;background:transparent;color:var(--fg-3);font-size:.84rem;font-weight:700}
.seg button:hover{color:var(--fg)}
.seg button.on{background:rgba(255,255,255,.09);color:var(--fg)}
/* roll-call states: the chosen one carries its own colour, so a screenful of
   rows reads at a glance. On phones the control drops under the name. */
.seg button.on.ok{background:var(--ok-dim);color:var(--ok)}
.seg button.on.warn{background:var(--warn-dim);color:var(--warn)}
.seg button.on.teal{background:var(--teal-dim);color:var(--teal)}
.seg button.on.bad{background:var(--bad-dim);color:var(--bad)}
button.item{width:100%;text-align:start;font:inherit;color:inherit}
button.item:hover{border-color:var(--line-2);background:var(--glass-2)}

/* collapsible course block (files) */
.fold{margin-bottom:12px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--glass);overflow:hidden}
.fold-h{display:flex;align-items:center;gap:11px;width:100%;padding:14px 17px;background:transparent;border:0;text-align:start;color:inherit;transition:background .15s}
.fold-h:hover{background:var(--glass-3)}
.fold-h .ic{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;flex:none;background:var(--teal-dim);color:var(--teal)}
.fold-h .ic svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.fold-h b{font-size:.98rem;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.fold-h .sub{font-size:.76rem;color:var(--fg-3);flex:none}
.fold-h .cnt{margin-inline-start:auto}
.fold-h .chev{color:var(--fg-3);transition:transform .22s var(--ease);flex:none;width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.fold.closed .chev{transform:rotate(-90deg)}
.fold.closed .fold-b{display:none}
.fold-b{padding:4px 14px 14px;border-top:1px solid var(--line)}
.fsec{margin-top:14px}
.fsec-h{display:flex;align-items:center;gap:8px;font-size:.82rem;font-weight:700;color:var(--fg-2);margin-bottom:9px}
.fsec-h .cnt{margin-inline-start:auto;font-size:.7rem;color:var(--fg-3);font-weight:600}
.file{display:flex;align-items:center;gap:12px;padding:11px 13px;border:1px solid var(--line);border-radius:var(--r);background:var(--glass-2);margin-bottom:8px;transition:border-color .16s}
.file:hover{border-color:var(--line-2)}
.file .fic{width:38px;height:38px;border-radius:9px;display:grid;place-items:center;flex:none;border:1px solid var(--line-2);background:var(--glass-3);
  font-size:.62rem;font-weight:800;color:var(--teal);letter-spacing:.02em;text-transform:uppercase}
.file .fic svg{width:17px;height:17px;stroke:var(--teal);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.file .fb{flex:1;min-width:0}
.file .fb b{display:block;font-weight:650;font-size:.92rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file .fb small{color:var(--fg-3);font-size:.78rem;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ── 6. app shell ──────────────────────────────────────────────────────── */
.shell{display:grid;grid-template-columns:var(--side-w) 1fr;min-height:100vh;min-height:100dvh}
.side{position:sticky;top:0;height:100vh;height:100dvh;display:flex;flex-direction:column;padding:20px 14px;
  background:rgba(10,15,22,.85);border-inline-start:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.side .brand{padding:4px 8px 22px}
.nav{display:flex;flex-direction:column;gap:2px}
.nv{display:flex;align-items:center;gap:11px;width:100%;padding:10px 11px;border:0;border-radius:var(--r-sm);
  background:transparent;color:var(--fg-3);font-size:.93rem;font-weight:650;text-align:start;transition:background .15s,color .15s;position:relative}
.nv svg{width:19px;height:19px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nv:hover{background:rgba(255,255,255,.04);color:var(--fg-2)}
.nv[aria-current="page"]{background:rgba(255,255,255,.07);color:var(--fg)}
.nv[aria-current="page"]::before{content:"";position:absolute;inset-inline-start:-14px;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;background:var(--teal)}
.nv .badge{margin-inline-start:auto;min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--amber);color:#241603;font-size:.7rem;font-weight:800;display:grid;place-items:center}
.nv-out{margin-top:auto}
.nv-out:hover{background:var(--bad-dim);color:var(--bad)}
.main{padding:clamp(18px,3vw,34px);max-width:1120px;width:100%;min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:24px;flex-wrap:wrap}
.topbar h1{font-size:1.35rem;font-weight:800}
.topbar .meta{font-size:.86rem;color:var(--fg-3);margin-top:2px}
.topbar .acts{display:flex;align-items:center;gap:8px}
.view-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 16px;flex-wrap:wrap}
.view-h h2{font-size:1.25rem;font-weight:800}
.view-h p{color:var(--fg-3);font-size:.88rem;margin-top:2px}
.view{animation:fade .3s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.tabbar{display:none}
.banner{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:10px;padding:10px 16px;font-size:.88rem;background:#2A1F0A;color:var(--amber);border-bottom:1px solid var(--amber-line)}
.banner .x{margin-inline-start:auto;background:none;border:0;color:inherit;font-size:1.1rem;opacity:.75}

/* auth layout */
.auth{min-height:100vh;min-height:100dvh;display:grid;grid-template-columns:1.05fr .95fr}
.auth-brand{position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;
  padding:clamp(32px,4vw,56px);background:var(--void-2);border-inline-start:1px solid var(--line)}
.auth-brand::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(52% 46% at 30% 22%,rgba(44,208,226,.12),transparent 70%)}
.auth-brand>*{position:relative}
.auth-brand h1{font-size:clamp(1.9rem,3.2vw,2.9rem);font-weight:800;line-height:1.15;letter-spacing:-.03em;margin:0 0 16px;text-wrap:balance}
.auth-brand p{color:var(--fg-2);max-width:38ch;font-size:1.05rem}
.auth-pts{display:flex;flex-direction:column;gap:12px}
.auth-pt{display:flex;align-items:center;gap:11px;font-size:.93rem;color:var(--fg-2)}
.auth-pt svg{width:17px;height:17px;flex:none;stroke:var(--teal);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.auth-form{display:flex;align-items:center;justify-content:center;padding:clamp(24px,5vw,48px)}
.auth-card{width:100%;max-width:400px;animation:rise .5s var(--ease) both}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.auth-card h2{font-size:1.5rem;font-weight:800;margin:0 0 6px}
.auth-card .sub{color:var(--fg-2);margin:0 0 26px;font-size:.93rem}
.auth-alt{margin:14px 0 0;font-size:.88rem;color:var(--fg-2);text-align:center}
.auth-alt a,.auth-alt .link{color:var(--teal);font-weight:700}
.auth-help{margin:18px 0 0;font-size:.8rem;color:var(--fg-3);text-align:center;line-height:1.6}
.auth-back{margin-top:24px;text-align:center;font-size:.8rem;color:var(--fg-3)}
.auth-back a:hover{color:var(--fg-2)}
.or{display:flex;align-items:center;gap:12px;color:var(--fg-4);font-size:.78rem;margin:16px 0}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}
.code-box{font-size:1.55rem;font-weight:800;letter-spacing:.14em;background:var(--glass-3);border:1px dashed var(--line-3);
  border-radius:var(--r);padding:14px;margin:4px 0 18px;direction:ltr;text-align:center;user-select:all}

/* ── 7. states ─────────────────────────────────────────────────────────── */
.boot{min-height:100vh;min-height:100dvh;display:grid;place-items:center}
.boot .spin{width:30px;height:30px;border-radius:50%;border:3px solid var(--line-2);border-top-color:var(--teal);animation:sp .8s linear infinite}
.skl{height:14px;border-radius:6px;background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(255,255,255,.1),rgba(255,255,255,.05));
  background-size:200% 100%;animation:sh 1.3s linear infinite}
.skl.lg{height:22px} .skl.card{height:92px;border-radius:var(--r-lg)}
.skls{display:flex;flex-direction:column;gap:10px}
@keyframes sh{to{background-position:-200% 0}}
.state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:34px 18px;color:var(--fg-3);
  border:1px dashed var(--line-2);border-radius:var(--r-lg);background:var(--glass-3)}
.state .ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:var(--glass-3);border:1px solid var(--line);color:var(--fg-3);margin-bottom:6px}
.state .ic svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.state b{color:var(--fg);font-size:1rem;font-weight:750}
.state p{font-size:.88rem;max-width:40ch}
.state .btn{margin-top:10px}
.state.err{border-color:var(--bad-line)} .state.err .ic{color:var(--bad);border-color:var(--bad-line);background:var(--bad-dim)}

/* ── 8. overlays ───────────────────────────────────────────────────────── */
.modal-back{position:fixed;inset:0;z-index:80;background:rgba(3,6,10,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;padding:18px;animation:fade .2s}
.modal{width:100%;max-width:430px;background:var(--glass-2);border:1px solid var(--line-2);border-radius:var(--r-xl);padding:24px;box-shadow:var(--shadow);animation:rise .3s var(--ease)}
.modal h3{font-size:1.15rem;font-weight:800;margin-bottom:6px}
.modal p{color:var(--fg-2);font-size:.92rem}
.modal .acts{display:flex;gap:8px;justify-content:flex-start;margin-top:20px;flex-wrap:wrap}
.modal .acts .btn{flex:1}
.toast-host{position:fixed;bottom:20px;inset-inline-start:50%;transform:translateX(-50%);z-index:90;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none;width:min(92vw,420px)}
.toast{pointer-events:auto;display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--r);background:#141C26;border:1px solid var(--line-2);
  color:var(--fg);font-size:.9rem;box-shadow:0 20px 50px -20px rgba(0,0,0,.9);animation:rise .3s var(--ease)}
.toast.ok{border-color:var(--ok-line)} .toast.err{border-color:var(--bad-line);color:#FCA5A5}
.toast svg{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ── 9. responsive ─────────────────────────────────────────────────────── */
@media (max-width:1000px){ .grid-3{grid-template-columns:1fr 1fr} }
@media (max-width:860px){
  .auth{grid-template-columns:1fr} .auth-brand{display:none}
  .shell{grid-template-columns:1fr}
  .side{display:none}
  .main{padding:16px 16px calc(var(--tabbar-h) + 22px + env(safe-area-inset-bottom))}
  .topbar{margin-bottom:18px}
  .grid-2{grid-template-columns:1fr}
  .tabbar{display:flex;position:fixed;bottom:0;inset-inline:0;z-index:40;height:calc(var(--tabbar-h) + env(safe-area-inset-bottom));
    padding:6px 4px env(safe-area-inset-bottom);background:rgba(10,15,22,.92);border-top:1px solid var(--line);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);overflow-x:auto;overflow-y:hidden;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .tabbar::-webkit-scrollbar{display:none}
  .tabbar .nv{flex:1 0 66px;flex-direction:column;gap:3px;padding:6px 2px;font-size:.66rem;font-weight:700;align-items:center;justify-content:center;border-radius:10px;text-align:center;white-space:nowrap}
  .tabbar .nv svg{width:21px;height:21px}
  .tabbar .nv[aria-current="page"]{background:var(--teal-dim);color:var(--teal)}
  .tabbar .nv[aria-current="page"]::before{display:none}
  .tabbar .nv .badge{position:absolute;top:2px;inset-inline-end:8px;margin:0;min-width:17px;height:17px;font-size:.62rem}
  .modal .acts .btn{flex:1 1 100%}
}
@media (max-width:640px){
  .row{flex-wrap:wrap}
  .row .seg{width:100%;margin-top:7px}
  .row .seg button{flex:1;padding:0;font-size:.8rem}
}
@media (max-width:600px){
  .grid-3{grid-template-columns:1fr}
  .fold-h .sub{display:none}
  .item{padding:14px 15px}
  .stat .k{font-size:1.35rem}
}
@media (max-width:380px){ .tabbar .nv{flex-basis:60px} }
@media (hover:none){ .btn{min-height:48px} .btn-sm{min-height:42px} .btn-xs{min-height:36px} }
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .view,.auth-card,.modal,.toast,.skl,.modal-back{animation:none}
  .bar>i,.fold-h .chev{transition:none}
}