:root{--bg:#f5f7fb;--card:#fff;--ink:#1d2433;--muted:#6b7385;--line:#e3e7ef;--pri:#1f6feb;--pri-d:#1858bc;--ok:#1a7f4b;--err:#c62828}
@media (prefers-color-scheme:dark){:root{--bg:#10141c;--card:#181e2a;--ink:#e8ecf5;--muted:#98a1b5;--line:#2a3243;--pri:#4c8dff;--pri-d:#6aa0ff;--ok:#4cc38a;--err:#ff6b6b}}
*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--pri)}.wrap{max-width:1080px;margin:0 auto;padding:0 16px}main{padding-top:24px;padding-bottom:40px}
header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.brand{text-decoration:none;color:var(--ink);font-size:1.2rem}.brand small{display:block;font-size:.7rem;color:var(--muted);line-height:1}
nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}nav a{text-decoration:none}.who{color:var(--muted);font-size:.9rem}
footer{color:var(--muted);font-size:.85rem;padding-bottom:30px;text-align:center}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:18px}.card.narrow{max-width:460px;margin:20px auto}.card.ok{border-color:var(--ok)}
.hero{text-align:center;padding:60px 0}.hero h1{font-size:2.2rem;line-height:1.2}.hero p{color:var(--muted)}
h1{font-size:1.7rem;margin:.2em 0 .6em}h2{font-size:1.2rem;margin-top:0}
.btn{display:inline-block;background:var(--pri);color:#fff;border:0;border-radius:8px;padding:10px 18px;font:inherit;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--pri-d)}.btn.sm{padding:6px 12px}.btn.ghost{background:transparent;color:var(--pri);border:1px solid var(--pri)}.btn[disabled]{opacity:.55;cursor:default}
button.link{background:none;border:0;color:var(--pri);cursor:pointer;font:inherit;padding:0}.danger{color:var(--err)!important}form.inline{display:inline}
label{display:block;margin-bottom:12px;font-size:.92rem;color:var(--muted)}label.check{display:flex;gap:8px;align-items:center}
input,select,textarea{display:block;width:100%;margin-top:4px;padding:9px 11px;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px}
input[type=checkbox],input[type=radio]{display:inline-block;width:auto;margin:0}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:10px 0}.row input{width:auto;flex:1;min-width:180px;margin:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.course{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;color:var(--ink)}
.course:hover{border-color:var(--pri)}.course h3{margin:.4em 0}.course p{color:var(--muted);font-size:.92rem;margin:.2em 0 .6em}
.tag{font-size:.75rem;background:color-mix(in srgb,var(--pri) 14%,transparent);color:var(--pri);padding:2px 8px;border-radius:99px}
.meta{display:flex;gap:12px;font-size:.8rem;color:var(--muted);margin-bottom:8px}
.progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin:6px 0}.progress span{display:block;height:100%;background:var(--ok)}
.filter{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}.filter input,.filter select{width:auto;margin:0;flex:1;min-width:160px}
.mats{list-style:none;margin:0;padding:0}.mats li a{display:flex;gap:12px;align-items:center;padding:12px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}
.mats .n{width:28px;height:28px;border-radius:50%;background:var(--line);display:grid;place-items:center;font-size:.85rem}.mats li.done .n{background:var(--ok);color:#fff}
.mats small{display:block;color:var(--muted)}.mats .chk{margin-left:auto;color:var(--ok);font-weight:700}
.ratio{position:relative;padding-top:56.25%;margin-bottom:14px}.ratio iframe,video{position:absolute;inset:0;width:100%;height:100%;border:0;border-radius:10px}video{position:static;height:auto}
.pdf{width:100%;height:70vh;border:1px solid var(--line);border-radius:8px}.note{background:var(--bg);padding:14px;border-radius:8px;margin:12px 0}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:.8rem;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:16px}.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}.stat b{font-size:1.8rem;display:block}.stat span{color:var(--muted);font-size:.85rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}@media(max-width:760px){.two{grid-template-columns:1fr}.hero h1{font-size:1.7rem}}
.pill{font-size:.75rem;padding:2px 9px;border-radius:99px;background:var(--line)}.pill.ok{background:color-mix(in srgb,var(--ok) 20%,transparent);color:var(--ok)}
.flash{background:color-mix(in srgb,var(--pri) 14%,transparent);padding:12px 14px;border-radius:8px;margin-bottom:16px}.err{color:var(--err)}.muted{color:var(--muted)}
fieldset{border:1px solid var(--line);border-radius:10px;margin:0 0 14px;padding:12px}legend{font-weight:600;padding:0 6px}.opt{display:flex;gap:8px;color:var(--ink);margin:6px 0}.big{font-size:2.4rem;font-weight:700;margin:0}
.cert-page{background:#fff;color:#222}.cert{max-width:900px;margin:30px auto;padding:60px 40px;text-align:center;border:10px double #1f6feb;font-family:Georgia,serif}
.cert h1{font-size:2.6rem;color:#1f6feb}.cert h2{font-size:2.2rem;margin:.3em 0}.cert h3{font-size:1.5rem}.cert .small{font-size:.85rem;color:#666;letter-spacing:.05em}
@media print{.no-print{display:none}.cert{margin:0}}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;margin:16px 0}
.badge{background:var(--card);border:1px dashed var(--line);border-radius:12px;padding:14px;text-align:center;opacity:.5;filter:grayscale(1)}
.badge.on{opacity:1;filter:none;border:1px solid var(--ok)}.badge span{font-size:2rem;display:block}.badge b{display:block;font-size:.9rem}.badge small{color:var(--muted)}
.hbar{display:grid;grid-template-columns:120px 1fr 32px;gap:8px;align-items:center;margin:6px 0;font-size:.88rem}
.hbar div{background:var(--line);border-radius:99px;height:10px;overflow:hidden}.hbar i{display:block;height:100%;background:var(--pri)}.hbar b{text-align:right}
.timer{position:sticky;top:64px;background:var(--card);border:1px solid var(--pri);border-radius:8px;padding:8px 14px;margin-bottom:12px;z-index:2}
.lang{font-size:.85rem;color:var(--muted);display:inline-flex;gap:6px}.lang a.on{font-weight:700;text-decoration:underline}
.search input{width:150px;margin:0;padding:6px 10px}.badge-n{background:var(--err);color:#fff;border-radius:99px;font-size:.7rem;padding:1px 6px;margin-left:4px}
.more{position:relative}.more summary{cursor:pointer;list-style:none;color:var(--pri)}.more summary::-webkit-details-marker{display:none}
.more div{position:absolute;right:0;top:130%;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px;display:flex;flex-direction:column;gap:6px;min-width:150px;z-index:10}
.results{list-style:none;padding:0;margin:0}.results li{padding:8px 0;border-bottom:1px solid var(--line)}.results small{display:block;color:var(--muted)}
.msg{padding:10px 14px;border-radius:10px;margin:8px 0;max-width:85%}.msg.me{background:color-mix(in srgb,var(--pri) 14%,transparent);margin-left:auto}.msg.them{background:var(--bg)}.msg p{margin:.3em 0 0}
.pill.danger{background:color-mix(in srgb,var(--err) 20%,transparent);color:var(--err)}.btn.danger-btn{background:var(--err)}