:root{--bg:#070b12;--panel:#101722;--panel2:#151f2d;--text:#f6f8fb;--muted:#aab4c4;--orange:#ff6a00;--line:#283445;--green:#39d98a;--red:#ff6577;--radius:18px}*{box-sizing:border-box}html{color-scheme:dark}body{margin:0;background:radial-gradient(circle at 85% 5%,#18283c 0,transparent 32%),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;min-height:100vh}a{color:inherit}.topbar{min-height:78px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:14px max(20px,calc((100% - 1180px)/2));background:rgba(7,11,18,.86);backdrop-filter:blur(14px);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:900;letter-spacing:.08em}.brand small{display:block;color:var(--muted);font-size:9px;letter-spacing:.18em;margin-top:3px}.brand-mark{width:42px;height:42px;border:3px solid var(--orange);border-radius:50%;display:grid;place-items:center;color:var(--orange)}nav{display:flex;gap:18px;flex-wrap:wrap}nav a{text-decoration:none;color:var(--muted);font-size:14px}nav a:hover{color:#fff}.container{max-width:1180px;margin:auto;padding:44px 22px}.container.narrow{max-width:560px}.auth-wrap{padding-top:60px}.hero{min-height:240px;display:flex;align-items:flex-end;padding:42px;background:linear-gradient(125deg,rgba(255,106,0,.16),transparent 48%),var(--panel);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:30px}.hero.compact{min-height:190px}.hero h1,.auth-card h1,.form-card h1{font-size:clamp(34px,5vw,62px);line-height:.98;margin:8px 0 16px;letter-spacing:-.04em}.hero p{max-width:700px;color:var(--muted);font-size:18px}.eyebrow{color:var(--orange);font-weight:900;font-size:12px;letter-spacing:.2em}.card{background:linear-gradient(145deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:22px;box-shadow:0 18px 50px rgba(0,0,0,.18)}.auth-card{margin-top:40px}.card h2,.card h3{margin-top:10px}.card p{color:var(--muted);line-height:1.6}.grid{display:grid;gap:22px}.grid.cards{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.button{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:12px;background:var(--orange);color:#fff;padding:13px 18px;font-weight:900;text-decoration:none;cursor:pointer;margin-top:8px}.button:hover{filter:brightness(1.12)}.button.secondary{background:#253248}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;background:#263246;color:#d7deea;font-size:10px;font-weight:900;letter-spacing:.08em}.badge.activa,.badge.activo,.badge.completada,.badge.pagado{background:rgba(57,217,138,.14);color:var(--green)}.badge.pendiente,.badge.en_progreso{background:rgba(255,106,0,.15);color:#ff9a52}.badge.suspendido,.badge.suspendida{background:rgba(255,101,119,.14);color:var(--red)}.progress{height:9px;background:#263142;border-radius:20px;overflow:hidden;margin-top:24px}.progress span{height:100%;display:block;background:linear-gradient(90deg,var(--orange),#ff9f43)}.progress-meta{display:flex;justify-content:space-between;margin:9px 0 20px;color:var(--muted)}.progress-meta b{color:#fff}.session-list{display:grid;gap:16px}.session-row{display:grid;grid-template-columns:60px 1fr auto;align-items:center;gap:22px;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.session-row.locked{opacity:.62}.session-number{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:rgba(255,106,0,.14);color:var(--orange);font-size:22px;font-weight:900}.session-copy h2{margin:8px 0}.session-copy p{margin:0;color:var(--muted)}.resource-list{display:grid;gap:12px}.resource-list a{display:block;padding:15px;background:#192435;border:1px solid var(--line);border-radius:12px;text-decoration:none}.resource-list a:hover{border-color:var(--orange)}label{display:grid;gap:7px;color:#dce2eb;font-size:14px;font-weight:700;margin:15px 0}input,select,textarea{width:100%;background:#0a1019;border:1px solid #344154;border-radius:10px;color:#fff;padding:12px;font:inherit}textarea{min-height:100px;resize:vertical}label small,.muted{color:var(--muted);font-weight:400}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.form-grid .wide,.form-grid .button{grid-column:1/-1}details summary{cursor:pointer;font-size:20px;font-weight:900}.alert{border-radius:12px;padding:14px 16px;margin:16px 0}.alert.error{background:rgba(255,101,119,.12);border:1px solid rgba(255,101,119,.45)}.alert.success{background:rgba(57,217,138,.12);border:1px solid rgba(57,217,138,.4)}.center{text-align:center}.back{display:inline-block;margin-bottom:20px;color:var(--muted);text-decoration:none}.feedback{background:#0c141f;border-left:3px solid var(--orange);padding:15px;line-height:1.6}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px}.stat b{display:block;font-size:30px;color:var(--orange)}.stat span{color:var(--muted)}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line)}th{color:var(--muted)}.link-button{background:none;border:0;color:#ff9a52;text-decoration:underline;cursor:pointer}.empty{text-align:center;padding:55px}footer{text-align:center;color:#778295;font-size:12px;padding:30px 20px 50px}@media(max-width:760px){.topbar{position:static;align-items:flex-start}.topbar nav{justify-content:flex-end;gap:10px}.brand small{display:none}.container{padding:28px 16px}.hero{padding:26px;min-height:190px}.grid.two,.form-grid{grid-template-columns:1fr}.session-row{grid-template-columns:48px 1fr}.session-row>div:last-child{grid-column:2}.stats{grid-template-columns:repeat(2,1fr)}}