:root{--bg:#07100c;--panel:#0d1a13;--panel2:#11231a;--line:rgba(155,225,93,.18);--acc:#9BE15D;--acc2:#6fcf3c;--hot:#FFD23F;--red:#FF5A67;--txt:#eaf3ec;--mut:#93a89a;--r:18px}
@font-face{font-family:Inter;font-weight:100 900;src:url(/static/fonts/inter-cyrillic-0.woff2) format('woff2');unicode-range:U+0400-045F,U+2116}
@font-face{font-family:Inter;font-weight:100 900;src:url(/static/fonts/inter-latin-1.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F,U+20AC}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--txt);font:15px/1.45 Inter,system-ui,sans-serif;min-height:100%}
body{background:radial-gradient(1200px 600px at 15% -10%,#173524 0%,transparent 60%),radial-gradient(900px 500px at 110% 10%,#10291c 0%,transparent 55%),var(--bg);background-attachment:fixed}
a{color:var(--acc);text-decoration:none}
button{font:inherit;cursor:pointer;border:0}
[hidden]{display:none!important}
#boot{position:fixed;inset:0;display:grid;place-items:center;z-index:50;background:var(--bg)}
.boot-box{text-align:center}.boot-t{font-size:26px;font-weight:800;margin:14px 0 6px}#bootmsg{color:var(--mut)}
.logo-mark{display:inline-grid;place-items:center;width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,var(--acc),#3f8f2a);color:#06210f;font-weight:900;font-size:34px;box-shadow:0 10px 40px rgba(155,225,93,.35)}
.logo-mark.sm{width:34px;height:34px;font-size:19px;border-radius:10px;box-shadow:none}
header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:28px;padding:12px 28px;background:rgba(7,16,12,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--txt);font-size:18px}
nav{display:flex;gap:6px;flex:1}
nav a{color:var(--mut);padding:8px 14px;border-radius:10px;font-weight:600}
nav a.on,nav a:hover{color:var(--txt);background:rgba(155,225,93,.1)}
.me{color:var(--mut);font-size:14px}
main{max-width:1240px;margin:0 auto;padding:28px 28px 80px}
h1{font-size:34px;font-weight:850;letter-spacing:-.02em;margin-bottom:6px}
h2{font-size:22px;font-weight:800;margin:28px 0 14px}
.sub{color:var(--mut)}
.card{background:linear-gradient(160deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:var(--r);padding:22px}
.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:22px;align-items:stretch;margin:20px 0}
.hero .card{position:relative;overflow:hidden}
.kpi{display:flex;gap:14px;flex-wrap:wrap}
.kpi .k{flex:1;min-width:150px;background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.kpi .k b{display:block;font-size:28px;font-weight:850}.kpi .k span{color:var(--mut);font-size:13px}
.lessons{display:grid;gap:14px}
.lesson{display:grid;grid-template-columns:220px 1fr auto;gap:20px;align-items:center;padding:16px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line);transition:.2s}
.lesson:hover{border-color:rgba(155,225,93,.5);transform:translateY(-1px)}
.lesson.locked{opacity:.5}
.thumb{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000 center/cover}
.thumb .play{position:absolute;inset:0;display:grid;place-items:center;font-size:34px;background:linear-gradient(transparent,rgba(0,0,0,.5))}
.thumb .bar{position:absolute;left:0;bottom:0;height:5px;background:var(--acc)}
.lesson h3{font-size:19px;font-weight:800;margin:4px 0}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(155,225,93,.12);color:var(--acc);margin-right:6px}
.tag.hot{background:rgba(255,210,63,.12);color:var(--hot)}.tag.red{background:rgba(255,90,103,.12);color:var(--red)}.tag.mut{background:rgba(255,255,255,.06);color:var(--mut)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:12px;font-weight:750;background:var(--acc);color:#06210f;box-shadow:0 8px 24px rgba(155,225,93,.25);transition:.15s}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--txt);border:1px solid var(--line);box-shadow:none}
.btn.hot{background:var(--hot);box-shadow:0 8px 24px rgba(255,210,63,.25)}
.btn[disabled]{opacity:.45;pointer-events:none}
.player{display:grid;grid-template-columns:1fr 320px;gap:20px;margin-top:16px}
.vwrap{position:relative;border-radius:var(--r);overflow:hidden;background:#000;border:1px solid var(--line)}
video{display:block;width:100%;aspect-ratio:16/9;background:#000}
.vbar{position:relative;height:10px;background:rgba(255,255,255,.08);margin-top:10px;border-radius:6px;overflow:hidden}
.vbar i{position:absolute;top:0;bottom:0;background:rgba(155,225,93,.55)}
.vbar b{position:absolute;top:-2px;bottom:-2px;width:3px;background:var(--hot)}
.chap{display:flex;flex-direction:column;gap:6px;max-height:560px;overflow:auto}
.chap button{display:flex;gap:10px;align-items:center;text-align:left;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.03);color:var(--txt);border:1px solid transparent}
.chap button:hover{border-color:var(--line)}.chap button.on{background:rgba(155,225,93,.12);border-color:rgba(155,225,93,.5)}
.chap button.lock{opacity:.45}
.chap .tm{font-variant-numeric:tabular-nums;color:var(--mut);font-size:12px;min-width:42px}
.ring{--p:0;width:86px;height:86px;border-radius:50%;background:conic-gradient(var(--acc) calc(var(--p)*1%),rgba(255,255,255,.08) 0);display:grid;place-items:center}
.ring span{width:68px;height:68px;border-radius:50%;background:var(--panel);display:grid;place-items:center;font-weight:850;font-size:18px}
.testbox{max-width:860px;margin:10px auto}
.tbar{position:sticky;top:62px;z-index:5;display:flex;align-items:center;gap:16px;padding:14px 18px;margin-bottom:16px;border-radius:14px;background:rgba(13,26,19,.92);backdrop-filter:blur(10px);border:1px solid var(--line)}
.timer{font-size:26px;font-weight:900;font-variant-numeric:tabular-nums}
.timer.warn{color:var(--hot)}.timer.crit{color:var(--red);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.55}}
.dots{display:flex;gap:6px;flex:1;flex-wrap:wrap}
.dots i{width:26px;height:8px;border-radius:6px;background:rgba(255,255,255,.12);cursor:pointer}
.dots i.ans{background:var(--acc2)}.dots i.cur{outline:2px solid var(--hot)}
.q{font-size:24px;font-weight:800;line-height:1.3;margin:6px 0 20px}
.opt{display:flex;gap:14px;align-items:center;width:100%;text-align:left;padding:16px 18px;margin-bottom:10px;border-radius:14px;background:rgba(255,255,255,.04);border:1.5px solid rgba(255,255,255,.1);color:var(--txt);font-size:17px;transition:.12s}
.opt:hover{border-color:rgba(155,225,93,.5)}
.opt.sel{border-color:var(--acc);background:rgba(155,225,93,.12)}
.opt .l{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:rgba(255,255,255,.08);font-weight:850;color:var(--hot);flex:none}
.rv{padding:16px 18px;border-radius:14px;margin-bottom:12px;background:var(--panel);border:1px solid var(--line)}
.rv.bad{border-color:rgba(255,90,103,.45)}.rv.good{border-color:rgba(155,225,93,.45)}
.rv .o{padding:6px 10px;border-radius:8px;margin:4px 0;color:var(--mut)}
.rv .o.right{color:var(--acc);background:rgba(155,225,93,.08)}.rv .o.wrong{color:var(--red);background:rgba(255,90,103,.08);text-decoration:line-through}
.big-score{font-size:72px;font-weight:900;letter-spacing:-.03em}
.grid2{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:750;list-style:none;display:flex;gap:10px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq p{margin-top:10px;color:#cfe0d3}
input,textarea,select{width:100%;font:inherit;color:var(--txt);background:rgba(0,0,0,.3);border:1px solid var(--line);border-radius:12px;padding:12px 14px;outline:none}
textarea{min-height:120px;resize:vertical}
input:focus,textarea:focus{border-color:var(--acc)}
.seg{display:inline-flex;flex-wrap:wrap;background:rgba(0,0,0,.3);border:1px solid var(--line);border-radius:12px;padding:4px;gap:4px;margin-bottom:12px}
.seg button{padding:8px 14px;border-radius:9px;background:transparent;color:var(--mut);font-weight:700}
.seg button.on{background:var(--acc);color:#06210f}
.stars button{background:none;font-size:28px;color:rgba(255,255,255,.25)}.stars button.on{color:var(--hot)}
table{width:100%;border-collapse:collapse;font-size:14px}
th{position:sticky;top:0;background:var(--panel2);text-align:left;font-weight:750;color:var(--mut);padding:10px;border-bottom:1px solid var(--line)}
td{padding:10px;border-bottom:1px solid rgba(255,255,255,.05)}
tr:hover td{background:rgba(155,225,93,.04)}
.tw{overflow:auto;max-height:620px;border:1px solid var(--line);border-radius:14px}
.pbar{width:120px;height:8px;border-radius:6px;background:rgba(255,255,255,.08);overflow:hidden;display:inline-block;vertical-align:middle;margin-right:8px}
.pbar i{display:block;height:100%;background:var(--acc)}
.note{padding:12px 16px;border-radius:12px;background:rgba(255,210,63,.08);border:1px solid rgba(255,210,63,.3);color:#f5e6b0}
#toast{opacity:0;position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(80px);background:#163222;border:1px solid var(--acc);color:var(--txt);padding:12px 20px;border-radius:12px;transition:.3s;z-index:60}
#toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.closed{text-align:center;padding:90px 20px}.closed h1{font-size:40px;margin:22px 0 10px}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:10px 0 14px}
.toolbar input{max-width:280px}
.empty{color:var(--mut);padding:30px;text-align:center}
@media(max-width:900px){.hero,.player,.grid2{grid-template-columns:1fr}.lesson{grid-template-columns:1fr}header{flex-wrap:wrap;gap:10px;padding:10px 14px}main{padding:16px}nav{order:3;width:100%;overflow:auto}}