:root{
  --bg:#0e111a;--bg2:#151827;--card:#171b2acc;--card2:#111624;--text:#eceaf2;--muted:#a7a0b6;--line:#2a2e42;--accent:#c084fc;--accent2:#8b5cf6;--ok:#4ade80;--shadow:0 18px 42px rgba(0,0,0,.28)
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:radial-gradient(circle at 15% 0%,#2a1836 0,#121522 36%,transparent 62%),radial-gradient(circle at 95% 10%,#17223a 0,#0e111a 38%,transparent 66%),linear-gradient(180deg,var(--bg),#10131d);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Arial,sans-serif}
button,input,select{font:inherit}h1,h2,h3,p{overflow-wrap:anywhere}h1{letter-spacing:-.035em;margin:14px 0 12px}h2{letter-spacing:-.02em}h3{margin:0 0 10px}.wrap{max-width:1240px;margin:auto;padding:26px 20px 44px}.top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px}.brand{display:flex;align-items:center;gap:10px;font-size:30px;font-weight:850;letter-spacing:-.05em;color:#f4eefc}.brand img{border-radius:12px}.brand span,.loginBrand span{color:#c4b5fd;font-weight:750}.loginBrand{display:flex;align-items:center;gap:12px;margin-bottom:14px;font-size:22px;letter-spacing:-.03em}.loginBrand img{border-radius:14px}.muted{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:var(--shadow);backdrop-filter:blur(10px)}.login{max-width:400px;margin:12vh auto}.login h1{margin-top:0}.field{display:block;width:100%;margin:10px 0;padding:13px 14px;border:1px solid var(--line);border-radius:14px;background:#0c101a;color:var(--text);outline:none}.field:focus{border-color:#7c5fa5;box-shadow:0 0 0 4px #c084fc1a}.btn{border:0;border-radius:14px;padding:12px 16px;background:linear-gradient(135deg,var(--accent2),#6d5dfc);color:white;font-weight:750;cursor:pointer}.ghost{background:#211a2d;color:#e7d9ff;border:1px solid #382d4a}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:20px}.grid.small{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.course,.mini{cursor:pointer;transition:transform .12s ease,border-color .12s ease}.course:hover,.mini:hover{transform:translateY(-1px);border-color:#5b456f}.mini{border:1px solid var(--line);border-radius:16px;padding:16px;background:var(--card2)}
.layout{display:grid;grid-template-columns:minmax(300px,360px) 1fr;gap:18px;align-items:start}.list{display:flex;flex-direction:column;gap:14px;max-height:78vh;overflow:auto;padding-right:4px}.moduleBox,details{border:1px solid var(--line);border-radius:16px;padding:12px;margin-bottom:10px;background:#101421}.moduleBox summary,summary{cursor:pointer;font-weight:800;padding:3px 2px 10px;color:#efe7ff}.moduleBox:not([open]) summary{padding-bottom:3px}.lesson{padding:13px;border:1px solid #292e43;border-radius:14px;background:#131827;cursor:pointer;margin-bottom:9px;transition:border-color .12s,background .12s}.lesson:hover{border-color:#5b456f;background:#181526}.lesson.active{outline:2px solid #8b5cf6;background:#1b1730}.lesson b{display:block;line-height:1.28}
.progress{height:7px;background:#272d3f;border-radius:99px;overflow:hidden;margin-top:9px}.progress.big{height:10px;margin:0 0 16px}.bar{height:100%;background:linear-gradient(90deg,var(--ok),#86efac)}video,.videoPlaceholder{width:100%;aspect-ratio:16/9;max-height:68vh;background:#070911;border:1px solid var(--line);border-radius:18px;margin-top:14px}.videoPlaceholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;cursor:pointer;color:white;background:linear-gradient(135deg,#181326,#101827)}.videoPlaceholder .muted{color:#c9c3d6}
.assets{display:flex;flex-direction:column}.assets a{display:flex;justify-content:space-between;align-items:center;gap:14px;color:#c4b5fd;padding:11px 2px;border-bottom:1px solid #2a2e42;text-decoration:none}.assets a:hover{color:#e9d5ff}.assets small{color:var(--muted);white-space:nowrap}.assetGrid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}.courseHead{display:flex;align-items:flex-end;justify-content:space-between;gap:14px}.courseHead h1{margin-bottom:4px}.coursePct{font-size:36px;font-weight:850;color:#e9d5ff}.toolbar{display:grid;grid-template-columns:1fr 210px;gap:12px;margin-bottom:16px;align-items:center}.toolbar .field{margin:0}.select{height:46px;line-height:1.2;padding:0 42px 0 14px;appearance:none;-webkit-appearance:none;background-color:#0c101a;background-image:linear-gradient(45deg,transparent 50%,#c4b5fd 50%),linear-gradient(135deg,#c4b5fd 50%,transparent 50%);background-position:calc(100% - 19px) 19px,calc(100% - 13px) 19px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}.playerActions{display:flex;align-items:center;gap:12px;margin:12px 0 16px}.player h2{margin:0 0 4px}
@media(max-width:900px){.wrap{padding:18px 14px 34px}.layout{grid-template-columns:1fr}.player{order:-1}.list{max-height:none;padding-right:0}.assetGrid{grid-template-columns:1fr}.toolbar{grid-template-columns:1fr}.top{align-items:flex-start}.brand{font-size:25px}.courseHead{align-items:flex-start}.coursePct{font-size:28px}.card{padding:16px;border-radius:18px}}