:root{
  --bg:#0C0918; --panel:#161127; --panel-2:#1E1834; --line:#342A55;
  --fg:#EEEAF8; --muted:#A79FC4; --dim:#7C739C;
  --accent:#7B4DFF; --accent-2:#B9A2FF;
  --good:#35C66B; --warn:#F2B33D; --bad:#FF6B7A;
  --display:'Orbitron','Eurostile',system-ui,sans-serif; --body:'Exo 2','Segoe UI',system-ui,sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 var(--body)}
a{color:var(--accent-2)}
h1,h2,h3{font-family:var(--display);letter-spacing:.02em;margin:0 0 12px;line-height:1.2}
h1{font-size:clamp(22px,4vw,32px)} h2{font-size:clamp(17px,2.6vw,22px)} h3{font-size:16px}
.boot{padding:40px;color:var(--muted)}
header.top{display:flex;align-items:center;gap:20px;padding:14px clamp(16px,4vw,40px);background:linear-gradient(180deg,#2a2148,#1a1430);border-bottom:1px solid var(--line);flex-wrap:wrap}
header.top img.logo{height:38px;display:block}
nav{display:flex;gap:6px;flex-wrap:wrap;flex:1}
nav a{padding:8px 14px;border-radius:10px;text-decoration:none;color:var(--muted);font-weight:600}
nav a.on,nav a:hover{background:var(--panel-2);color:var(--fg)}
.chip-user{display:flex;align-items:center;gap:10px}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--panel-2);border:1px solid var(--line);object-fit:cover;display:inline-flex;align-items:center;justify-content:center;font-weight:700;color:var(--accent-2);font-size:14px}
.avatar.big{width:120px;height:120px;font-size:36px}
main{max-width:1060px;margin:0 auto;padding:clamp(16px,4vw,40px)}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:clamp(18px,3vw,28px);margin-bottom:20px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
label{font-weight:600;font-size:14px;color:var(--muted)}
input,select,textarea{background:var(--panel-2);border:1px solid var(--line);color:var(--fg);border-radius:12px;padding:12px 14px;font:inherit;min-height:46px;width:100%}
textarea{min-height:100px;resize:vertical}
input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}
.btn{background:var(--accent);color:#fff;border:0;border-radius:12px;padding:12px 20px;font:inherit;font-weight:700;cursor:pointer;min-height:46px}
.btn:hover{filter:brightness(1.1)} .btn:disabled{opacity:.5;cursor:default}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--fg)}
.btn.small{padding:6px 12px;min-height:34px;font-size:14px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.msg{margin:10px 0;padding:10px 14px;border-radius:10px;font-size:15px}
.msg.err{background:#3a1620;color:#ffc2ca;border:1px solid #6a2a38}
.msg.ok{background:#12301f;color:#b8f2cd;border:1px solid #226b41}
.muted{color:var(--muted)} .small{font-size:14px}
.bar{height:12px;background:var(--panel-2);border-radius:99px;overflow:hidden;border:1px solid var(--line)}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));width:0}
.tag{display:inline-block;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:700;border:1px solid var(--line);color:var(--muted)}
.tag.good{color:var(--good);border-color:#226b41} .tag.warn{color:var(--warn);border-color:#6b5120} .tag.bad{color:var(--bad);border-color:#6a2a38}
ul.check{list-style:none;padding:0;margin:0}
ul.check li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line)}
ul.check li:last-child{border-bottom:0}
.dot{width:22px;height:22px;border-radius:50%;border:2px solid var(--line);flex:none;margin-top:2px;display:inline-flex;align-items:center;justify-content:center;font-size:13px}
.dot.on{background:var(--good);border-color:var(--good);color:#04200f}
.lesson-row{display:flex;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.lesson-row:last-child{border-bottom:0} .lesson-row .t{flex:1;min-width:200px}
video{width:100%;max-height:60vh;border-radius:14px;background:#000}
.novideo{padding:40px;text-align:center;border:1px dashed var(--line);border-radius:14px;color:var(--muted)}
.q{margin:18px 0} .q p{font-weight:600;margin:0 0 8px}
.opt{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:12px;margin-bottom:8px;cursor:pointer}
.opt input{width:20px;min-height:20px;margin-top:3px;flex:none}
.opt.right{border-color:var(--good)} .opt.wrong{border-color:var(--bad)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:600}
.tablebox{overflow-x:auto}
.center{max-width:440px;margin:6vh auto}
.center img{height:56px;display:block;margin:0 auto 20px}
@media (max-width:600px){header.top{gap:10px}}
.btn{text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
input[type=file]{width:auto;min-height:0;padding:8px 10px;max-width:100%}
input[type=radio],input[type=checkbox]{min-height:0}