/* Кабинет ученика. Система «Бумага»: Brand/AI-переход/Бумага/00 — Бумага.md */
@font-face{font-family:'TT Hoves';src:url(/static/assets/TTHoves-Light.woff2) format('woff2');font-weight:300;font-display:swap}
@font-face{font-family:'TT Hoves';src:url(/static/assets/TTHoves-Regular.woff2) format('woff2');font-weight:400;font-display:swap}
:root{--ink:#01030E;--lime:#EEF400;--forest:#183225;--cream:#FDF2E4;--paper:#FFFAF3;--gray:#F6F6F6;--muted:#6E6A62;--dust:#AC9D94;
  --line:#01030e14;--line2:#01030e22;--ease:cubic-bezier(.22,.61,.36,1)}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:'TT Hoves',system-ui,sans-serif;font-weight:300;color:var(--ink);background:var(--gray);font-size:16px;line-height:1.45;-webkit-font-smoothing:antialiased}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
h1,h2,h3{font-weight:400;margin:0}
h1{font-size:44px;letter-spacing:-.045em;line-height:1.02}
h2{font-size:28px;letter-spacing:-.03em;line-height:1.1}
h3{font-size:20px;letter-spacing:-.02em;line-height:1.2}
.mark{background:linear-gradient(transparent 10%,var(--lime) 10%,var(--lime) 90%,transparent 90%);padding:0 8px;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.kicker{font-size:11px;letter-spacing:.13em;text-transform:uppercase;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.kicker:before{content:'';width:6px;height:6px;border-radius:50%;background:var(--forest)}
.muted{color:var(--muted)}

/* оболочка */
.shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.side{background:#fff;border-right:1px solid var(--line);padding:28px 20px;display:flex;flex-direction:column;gap:30px;position:sticky;top:0;height:100vh}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:15px;line-height:1.15}
.logo img{width:42px}
.nav{display:flex;flex-direction:column;gap:4px}
.nav .group{font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--dust);margin:14px 12px 6px}
.nav a{display:flex;align-items:center;gap:10px;text-decoration:none;padding:10px 12px;border-radius:12px;font-size:15px;transition:background .2s var(--ease)}
.nav a:hover{background:var(--gray)}
.nav a.on{background:var(--ink);color:#fff}
.nav svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;flex:none}
.who{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:14px}
.who .ava{width:36px;height:36px;border-radius:50%;background:var(--cream);display:grid;place-items:center;font-weight:400}
.who button{margin-left:auto;background:none;border:0;color:var(--muted);cursor:pointer;font-size:13px;padding:8px}
.main{padding:45px 5% 80px;max-width:1180px;width:100%}
.head{margin-bottom:35px}
.head p{font-size:19px;color:var(--muted);margin:12px 0 0;max-width:720px}

/* карточки */
.card{background:#fff;border:1px solid #01030e1a;border-radius:24px;padding:30px}
.card.paper{background:var(--paper)}
.card.ink{background:var(--ink);color:#fff;border-color:var(--ink)}
.card.ink .muted{color:var(--dust)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:1.4fr 1fr}
.tag{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line2);border-radius:12px;padding:5px 11px;font-size:13px;background:#fff}
.tag i{width:7px;height:7px;border-radius:50%;background:var(--forest)}
.ink .tag{background:transparent;border-color:#ffffff30;color:#fff}
.ink .tag i{background:var(--lime)}
.tag.lime{background:var(--lime);border-color:var(--ink);color:var(--ink)}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:16px;padding:16px 22px;font-size:16px;cursor:pointer;text-decoration:none;
  background:var(--ink);color:#fff;transition:transform .25s var(--ease)}
.btn:hover{transform:translateY(-3px)}
.btn:active{transform:scale(.95)}
.btn.lime{background:var(--lime);color:var(--ink)}
.btn.ghost{background:transparent;color:inherit;box-shadow:inset 0 0 0 1px currentColor}
.btn.small{padding:10px 14px;font-size:14px;border-radius:12px}

/* сегодня */
.today h2{font-size:34px;margin:14px 0 10px}
.today .what{font-size:19px;line-height:1.4;max-width:640px}
.today dl{display:grid;grid-template-columns:120px 1fr;gap:10px 18px;margin:24px 0 0}
.today dt{color:var(--dust);font-size:13px;letter-spacing:.06em;text-transform:uppercase;padding-top:3px}
.today dd{margin:0}
.mats{display:flex;flex-direction:column;gap:8px;margin-top:22px}
.mat{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:16px;border:1px solid var(--line);text-decoration:none;background:#fff;color:var(--ink);transition:border-color .2s}
.mat:hover{border-color:var(--ink)}
.mat .k{font-size:12px;color:var(--muted);min-width:96px}
.mat .t{flex:1}
.mat.closed{opacity:.55;cursor:default}
.mat.closed:hover{border-color:var(--line)}
.ink .mat{background:#ffffff0d;border-color:#ffffff25;color:#fff}
.ink .mat .k{color:var(--dust)}

/* путь */
.path{display:flex;flex-direction:column;gap:12px}
.path a{display:block;text-decoration:none;padding:18px 20px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.path a:hover{border-color:var(--ink)}
.path b{font-weight:400;font-size:18px;display:block;margin-bottom:6px}

/* лаборатория */
.modules{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:30px}
.module{border-top:2px solid var(--ink);padding-top:12px}
.module small{color:var(--muted)}
.meet{background:#fff;border:1px solid var(--line);border-radius:20px;margin-bottom:10px;overflow:hidden}
.meet summary{list-style:none;display:grid;grid-template-columns:54px 1fr auto;gap:18px;align-items:center;padding:20px 24px;cursor:pointer}
.meet summary::-webkit-details-marker{display:none}
.meet .n{width:44px;height:44px;border-radius:50%;border:1px solid var(--line2);display:grid;place-items:center;font-size:17px}
.meet.today{border-color:var(--ink)}
.meet.today .n{background:var(--lime);border-color:var(--ink)}
.meet.past .n{background:var(--ink);color:#fff;border-color:var(--ink)}
.meet .when{font-size:13px;color:var(--muted)}
.meet .body{padding:0 24px 24px 96px}
.meet .body p{margin:0 0 12px;max-width:680px}
.meet .body b{font-weight:400}

/* материал */
.doc{background:#fff;border:1px solid var(--line);border-radius:24px;padding:40px 45px;max-width:860px}
.doc h1{font-size:32px;margin:26px 0 14px}
.doc h2{font-size:24px;margin:26px 0 12px}
.doc h3{font-size:19px;margin:22px 0 10px}
.doc p,.doc li{font-size:17px}
.doc code{font-family:ui-monospace,Menlo,monospace;font-size:14px;background:var(--gray);padding:2px 6px;border-radius:6px}
.doc pre{background:var(--ink);color:#fff;padding:18px 20px;border-radius:16px;overflow:auto;position:relative}
.doc pre code{background:none;padding:0;color:inherit}
.doc a{text-decoration-color:var(--lime);text-decoration-thickness:.1em;text-underline-offset:.12em}
.doc blockquote{margin:0;border-left:2px solid var(--lime);padding-left:16px;color:var(--muted)}

/* вход и подключение */
.gate{min-height:100vh;display:grid;place-items:center;padding:30px;background:#fff}
.gate-card,.connect-card{max-width:520px;width:100%}
.gate-card img{width:64px;margin-bottom:30px}
.gate-card h1{font-size:52px;letter-spacing:-.062em;line-height:.96;margin-bottom:18px}
.gate-card p{font-size:19px;color:var(--muted);margin:0 0 28px}
body.connect{display:grid;place-items:center;min-height:100vh;padding:30px;background:#fff}
.connect-card h1{margin-bottom:16px}
.connect-card ul{padding-left:20px}
.connect-card form{display:flex;gap:10px;margin-top:24px}
.warn{background:var(--cream);border-radius:12px;padding:12px 14px}
.step{display:grid;grid-template-columns:34px 1fr;gap:14px;margin-bottom:18px}
.step .num{width:30px;height:30px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:14px}
.copy{display:flex;gap:8px;align-items:center;background:var(--gray);border-radius:12px;padding:8px 8px 8px 14px;font-family:ui-monospace,Menlo,monospace;font-size:14px;word-break:break-all}
.empty{padding:30px;border:1px dashed var(--line2);border-radius:20px;color:var(--muted)}
.fade{animation:up .5s var(--ease) both}
@keyframes up{from{opacity:0;transform:translateY(28px)}}
@media (prefers-reduced-motion:reduce){.fade{animation:none}.btn{transition:none}}

@media (max-width:1100px){.g2{grid-template-columns:1fr}}
@media (max-width:760px){
  .shell{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;padding:14px 16px;gap:12px;border-right:0;border-bottom:1px solid var(--line)}
  .nav{flex-direction:row;flex-wrap:wrap;width:100%}
  .nav .group{display:none}
  .nav a{padding:9px 11px;font-size:14px}
  .who{margin:0 0 0 auto}
  .main{padding:28px 16px 60px}
  h1{font-size:34px}
  .card{padding:22px}
  .today h2{font-size:26px}
  .today dl{grid-template-columns:1fr;gap:4px}
  .today dd{margin-bottom:10px}
  .modules{grid-template-columns:1fr}
  .meet summary{grid-template-columns:44px 1fr;padding:16px}
  .meet summary .tag{display:none}
  .meet .body{padding:0 16px 20px}
  .doc{padding:26px 20px}
  .gate-card h1{font-size:40px}
}