/* Academia OnlinePSD · misma línea de diseño que el editor */
:root{--bg:#f4f6fc;--panel:#ffffff;--panel2:#f8fafc;--ink:#0f172a;--ink2:#5b6680;--line:#e3e8f4;--line2:#cfd7ea;--accent:#06b6d4;--accent2:#2563eb;--violet:#7c3aed;--gold:#f59e0b;--ok:#16a34a;--bad:#dc2626;
  --grad:linear-gradient(135deg,#06b6d4,#2563eb 55%,#7c3aed);--night:linear-gradient(120deg,#0b1026,#1e1b4b 55%,#2e1065);--r:18px;--sh:0 10px 30px rgba(15,23,42,.08);color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#0b1020;--panel:#141a30;--panel2:#10162a;--ink:#eef2ff;--ink2:#9aa6c8;--line:#232c4a;--line2:#2f3a60;--sh:0 10px 30px rgba(0,0,0,.35);color-scheme:dark}}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink);font-family:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent2);text-decoration:none}button{font:inherit;cursor:pointer}img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 22px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 18px;border-radius:14px;border:1.5px solid var(--line2);background:var(--panel);color:var(--ink);font-weight:800;font-size:14px;transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-1px);box-shadow:var(--sh)}.btn.pri{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 22px rgba(37,99,235,.28)}.btn.gold{background:linear-gradient(135deg,#f59e0b,#b45309);color:#fff;border-color:transparent}
.btn.ghost{background:transparent}.btn.sm{height:36px;padding:0 12px;font-size:13px;border-radius:11px}.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:color-mix(in srgb,var(--accent2) 12%,transparent);font-size:12px;font-weight:800;color:var(--ink)}
/* cabecera */
.top{position:sticky;top:0;z-index:50;background:var(--night);color:#fff;box-shadow:0 6px 24px rgba(11,16,38,.35)}
.top .wrap{display:flex;align-items:center;gap:18px;height:64px}.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:900;font-size:17px}.brand img{width:36px;height:36px;border-radius:11px}.brand small{display:block;font-size:11px;font-weight:700;color:#c4b5fd}
.nav{display:flex;gap:4px;margin-left:12px}.nav a{color:#e0e7ff;font-weight:700;font-size:14px;padding:8px 12px;border-radius:10px}.nav a.on,.nav a:hover{background:rgba(255,255,255,.12);color:#fff}
.sp{flex:1}.user{display:flex;align-items:center;gap:10px}.av{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:900;color:#fff;background:linear-gradient(135deg,#7c3aed,#2563eb);flex:none}
.lvl{display:grid;gap:3px;min-width:150px}.lvl span{font-size:11.5px;font-weight:800;color:#fde68a}.lvl i{height:6px;border-radius:5px;background:rgba(255,255,255,.18);position:relative;overflow:hidden;display:block}.lvl i::after{content:'';position:absolute;inset:0;width:var(--p);background:linear-gradient(90deg,#f59e0b,#fde68a)}
.top .btn{height:38px;border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff}.top .btn.pri{background:#fff;color:#1e1b4b}
/* portada */
.hero{background:var(--night);color:#fff;padding:56px 0 64px;position:relative;overflow:hidden}.hero::after{content:'';position:absolute;inset:auto -10% -60% 40%;height:420px;background:radial-gradient(closest-side,rgba(6,182,212,.35),transparent);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;position:relative;z-index:1}.hero h1{font-size:44px;line-height:1.08;margin:0 0 14px;letter-spacing:-.02em}.hero p{font-size:17px;line-height:1.6;color:#dbe4ff;margin:0 0 22px}
.hero .stats{display:flex;gap:26px;margin-top:26px}.hero .stats b{display:block;font-size:24px}.hero .stats span{font-size:12px;color:#c4b5fd;font-weight:700}
.heroart{border-radius:24px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);padding:16px;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.sec{padding:44px 0}.sec h2{font-size:26px;margin:0 0 6px;letter-spacing:-.01em}.sec .lead{color:var(--ink2);font-weight:600;margin:0 0 22px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.card{background:var(--panel);border:1.5px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);transition:transform .15s,box-shadow .15s;color:var(--ink);display:flex;flex-direction:column}
a.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(15,23,42,.14)}.card .cv{aspect-ratio:16/9;display:grid;place-items:center;font-size:54px;background:var(--grad);color:#fff}.card .cb{padding:16px;display:grid;gap:6px;flex:1}
.card h3{margin:0;font-size:17px}.card p{margin:0;color:var(--ink2);font-weight:600;font-size:13.5px;line-height:1.5}.meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;font-weight:800;color:var(--ink2)}
.bar{height:7px;border-radius:5px;background:var(--line);overflow:hidden}.bar i{display:block;height:100%;width:var(--p);background:var(--grad)}
.feat{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}.feat div{padding:18px;border-radius:var(--r);background:var(--panel);border:1.5px solid var(--line)}.feat b{display:block;font-size:15px;margin:6px 0 4px}.feat span{color:var(--ink2);font-weight:600;font-size:13px;line-height:1.5}.feat em{font-style:normal;font-size:26px}
/* ficha del curso */
.chero{background:var(--night);color:#fff;padding:40px 0}.chero .wrap{display:grid;grid-template-columns:1fr 360px;gap:32px}.chero h1{font-size:34px;margin:6px 0 10px;line-height:1.15}.chero p{color:#dbe4ff;font-size:16px;line-height:1.55}
.stars{color:var(--gold);letter-spacing:1px}.crumb{font-size:12.5px;font-weight:800;color:#a5b4fc}.crumb a{color:#c7d2fe}
.side{position:sticky;top:84px;align-self:start;background:var(--panel);color:var(--ink);border-radius:22px;border:1.5px solid var(--line);box-shadow:0 20px 50px rgba(15,23,42,.18);overflow:hidden}.side .sb{padding:18px;display:grid;gap:12px}
.cbody{display:grid;grid-template-columns:1fr 360px;gap:32px;padding:30px 22px}.box{background:var(--panel);border:1.5px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:18px}.box h2{font-size:20px;margin:0 0 12px}
.learn{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;margin:0;padding:0;list-style:none}.learn li{font-weight:600;font-size:14px;line-height:1.45;padding-left:24px;position:relative}.learn li::before{content:'✓';position:absolute;left:0;color:var(--ok);font-weight:900}
.acc{border:1.5px solid var(--line);border-radius:14px;overflow:hidden}.acc details{border-top:1px solid var(--line)}.acc details:first-child{border-top:0}.acc summary{list-style:none;display:flex;gap:10px;align-items:center;padding:13px 16px;background:var(--panel2);font-weight:800;cursor:pointer}.acc summary::-webkit-details-marker{display:none}
.acc summary small{margin-left:auto;color:var(--ink2);font-weight:700;font-size:12px}.acc ul{list-style:none;margin:0;padding:6px 0}.acc li{display:flex;gap:10px;align-items:center;padding:8px 18px;font-size:14px;font-weight:600}.acc li small{margin-left:auto;color:var(--ink2);font-weight:700}
.prose{line-height:1.7;font-size:15.5px}.prose h2{font-size:21px;margin:28px 0 8px}.prose ul,.prose ol{padding-left:22px}.prose li{margin:6px 0}.prose .tip,.tip{padding:14px 16px;border-radius:14px;background:linear-gradient(135deg,#ede9fe,#e0f2fe);color:#1e1b4b;font-weight:600;margin:18px 0}
.inst{display:flex;gap:14px;align-items:center}.inst .av{width:58px;height:58px;font-size:22px}
/* reproductor */
.player{display:grid;grid-template-columns:1fr 380px;min-height:calc(100vh - 64px)}.pmain{min-width:0;background:var(--bg)}.pside{border-left:1.5px solid var(--line);background:var(--panel);position:sticky;top:64px;height:calc(100vh - 64px);display:flex;flex-direction:column}
.pbar{display:flex;align-items:center;gap:12px;padding:10px 22px;background:#0b1026;color:#fff}.pbar b{font-size:15px}.pbar .sp{flex:1}.ring{--p:0;width:38px;height:38px;border-radius:50%;background:conic-gradient(#f59e0b calc(var(--p)*1%),rgba(255,255,255,.18) 0);display:grid;place-items:center}.ring span{width:30px;height:30px;border-radius:50%;background:#0b1026;display:grid;place-items:center;font-size:10px;font-weight:900}
.stage{background:#05070f;display:grid;place-items:center}.video{width:100%;max-width:1100px;aspect-ratio:16/9;background:#000}.video iframe{width:100%;height:100%;border:0;display:block}
.poster{width:100%;max-width:1100px;aspect-ratio:16/9;display:grid;place-items:center;background:var(--night);color:#fff;position:relative;overflow:hidden}.poster .pv{width:min(70%,620px)}.poster .pl{position:absolute;left:24px;bottom:20px;right:24px;display:flex;justify-content:space-between;align-items:end;gap:10px}.poster h3{margin:0;font-size:22px}.poster span{font-weight:800;font-size:12px;color:#c4b5fd}
.tabs{display:flex;gap:4px;border-bottom:1.5px solid var(--line);padding:0 22px;background:var(--panel);overflow:auto}.tabs button{border:0;background:none;padding:14px 12px;font-weight:800;color:var(--ink2);border-bottom:3px solid transparent;white-space:nowrap}.tabs button.on{color:var(--ink);border-color:var(--accent2)}
.tpane{max-width:900px;margin:0 auto;padding:24px 22px 60px}.tpane h1{font-size:26px;margin:0 0 6px}
.cols{display:grid;grid-template-columns:1fr 1.3fr;gap:20px}.cols h3{font-size:15px;margin:0 0 8px}.cols li{margin:6px 0;line-height:1.5;font-weight:600}
.quiz{margin-top:20px;padding:18px;border-radius:var(--r);border:1.5px solid var(--line);background:var(--panel)}.opts{display:grid;gap:8px}.opts button{text-align:left;padding:11px 14px;border-radius:12px;border:1.5px solid var(--line2);background:var(--panel);color:var(--ink);font-weight:700}
.opts button.right{background:#dcfce7;border-color:var(--ok);color:#166534}.opts button.wrong{background:#fee2e2;border-color:var(--bad);animation:shake .35s}@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.nav2{display:flex;justify-content:space-between;gap:10px;margin-top:24px}
.sidehd{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1.5px solid var(--line)}.sidehd b{font-size:15px}.sidehd small{margin-left:auto;color:var(--ink2);font-weight:800}
.toc{overflow:auto;flex:1}.toc .mod{border-bottom:1px solid var(--line)}.toc .mh{width:100%;display:flex;gap:10px;align-items:center;text-align:left;padding:12px 16px;border:0;background:var(--panel2);color:var(--ink)}.toc .mh b{font-size:13.5px}.toc .mh small{display:block;color:var(--ink2);font-weight:700;font-size:11.5px}
.les{display:grid;grid-template-columns:22px 1fr auto;gap:4px 10px;align-items:start;padding:10px 16px;border-left:3px solid transparent;cursor:pointer}.les:hover{background:color-mix(in srgb,var(--accent2) 6%,transparent)}.les.on{background:color-mix(in srgb,var(--accent2) 11%,transparent);border-left-color:var(--accent2)}
.les input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--violet);cursor:pointer}.les b{font-size:13.5px;font-weight:700;line-height:1.35}.les small{grid-column:2;color:var(--ink2);font-weight:700;font-size:11.5px}
.res{position:relative}.res>button{height:28px;padding:0 10px;border-radius:9px;border:1.5px solid var(--violet);background:transparent;color:var(--violet);font-weight:800;font-size:11.5px}.res .menu{position:absolute;right:0;top:32px;z-index:5;min-width:190px;background:var(--panel);border:1.5px solid var(--line2);border-radius:12px;box-shadow:var(--sh);padding:6px;display:grid}
.res .menu button{border:0;background:none;text-align:left;padding:8px 10px;border-radius:8px;font-weight:700;color:var(--ink)}.res .menu button:hover{background:var(--panel2)}
/* preguntas, notas, reseñas */
.field{width:100%;padding:11px 13px;border-radius:12px;border:1.5px solid var(--line2);background:var(--panel);color:var(--ink);font:inherit;font-weight:600}textarea.field{min-height:110px;resize:vertical}
.qi{display:grid;grid-template-columns:42px 1fr auto;gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}.qi h4{margin:0 0 4px;font-size:15px}.qi p{margin:0;color:var(--ink2);font-weight:600;font-size:13.5px}.qi small{color:var(--violet);font-weight:800;font-size:12px}
.vote{display:grid;justify-items:center;gap:2px;font-weight:900}.vote button{width:32px;height:32px;border-radius:50%;border:1.5px solid var(--line2);background:var(--panel);color:var(--ink)}.vote button.on{background:var(--violet);color:#fff;border-color:var(--violet)}
.rsum{display:grid;grid-template-columns:160px 1fr;gap:24px;align-items:center}.rsum .big{font-size:58px;font-weight:900;color:#b45309;line-height:1}.rrow{display:grid;grid-template-columns:1fr 90px;gap:10px;align-items:center;font-size:12px;font-weight:800;margin:6px 0}.rrow .bar i{background:#94a3b8}
.rv{padding:16px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:42px 1fr;gap:12px}.rv b{font-size:14px}.rv p{margin:4px 0 0;font-weight:600;color:var(--ink2)}
.starin{display:flex;gap:4px;font-size:30px}.starin button{border:0;background:none;color:#cbd5e1;padding:0}.starin button.on{color:var(--gold)}
/* blog */
.post{max-width:780px;margin:0 auto;padding:34px 22px 70px}.post h1{font-size:38px;line-height:1.12;margin:10px 0}.post .cvr{aspect-ratio:21/9;border-radius:24px;display:grid;place-items:center;font-size:80px;color:#fff;background:var(--grad);margin:18px 0 26px}
/* perfil y modales */
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.bdg{display:grid;justify-items:center;gap:2px;text-align:center;padding:14px;border-radius:16px;border:1.5px dashed var(--line2);opacity:.5;filter:grayscale(1)}.bdg.got{opacity:1;filter:none;border:1.5px solid var(--gold);background:linear-gradient(160deg,color-mix(in srgb,var(--gold) 14%,transparent),transparent)}.bdg span{font-size:30px}.bdg b{font-size:13px}.bdg small{font-size:11px;color:var(--ink2);font-weight:600}
.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:rgba(11,16,38,.6);backdrop-filter:blur(6px);padding:16px}.mbox{width:min(440px,100%);background:var(--panel);border-radius:24px;border:1.5px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.4);padding:26px;display:grid;gap:12px}
.mbox h2{margin:0;font-size:22px}.mbox .sw{display:flex;gap:6px;background:var(--panel2);padding:4px;border-radius:12px}.mbox .sw button{flex:1;border:0;background:none;padding:8px;border-radius:9px;font-weight:800;color:var(--ink2)}.mbox .sw button.on{background:var(--panel);color:var(--ink);box-shadow:var(--sh)}
.err{color:var(--bad);font-weight:800;font-size:13px;min-height:18px}.note{font-size:12px;color:var(--ink2);font-weight:600;line-height:1.5}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:200;background:#0f172a;color:#fff;padding:12px 18px;border-radius:14px;font-weight:800;box-shadow:0 14px 30px rgba(0,0,0,.3);animation:tin .25s ease}@keyframes tin{from{opacity:0;transform:translate(-50%,10px)}}
.xpf{position:fixed;left:50%;top:22%;transform:translateX(-50%);z-index:210;padding:12px 22px;border-radius:18px;background:var(--grad);color:#fff;font-weight:900;font-size:20px;box-shadow:0 16px 40px rgba(76,29,149,.45);animation:xpf 2.2s ease forwards;pointer-events:none}@keyframes xpf{0%{opacity:0;transform:translate(-50%,14px) scale(.9)}15%{opacity:1;transform:translate(-50%,0) scale(1.05)}80%{opacity:1}100%{opacity:0;transform:translate(-50%,-18px)}}
.foot{border-top:1.5px solid var(--line);padding:26px 0;color:var(--ink2);font-weight:600;font-size:13px}.foot .wrap{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
.empty{padding:30px;text-align:center;color:var(--ink2);font-weight:700;border:1.5px dashed var(--line2);border-radius:var(--r)}
.guest{display:flex;gap:12px;align-items:center;padding:12px 16px;border-radius:14px;background:color-mix(in srgb,var(--gold) 14%,transparent);font-weight:700;font-size:13.5px;margin-bottom:16px}
.vis{width:100%;height:auto;display:block}
@media (max-width:980px){.hero .wrap,.chero .wrap,.cbody,.player{grid-template-columns:1fr}.side{position:static}.pside{position:static;height:auto;border-left:0;border-top:1.5px solid var(--line)}.learn,.cols{grid-template-columns:1fr}.nav{display:none}.lvl{display:none}.hero h1{font-size:34px}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* administrador */
.av.adm{background:#fff;border:2px solid #f59e0b;padding:2px}.av.adm img{width:100%;height:100%;border-radius:50%;object-fit:cover}
.adminb{display:inline-flex;align-items:center;gap:5px;padding:2px 8px 2px 3px;border-radius:999px;background:linear-gradient(135deg,#0b1026,#2e1065);color:#fde68a;font-size:11px;font-weight:800;vertical-align:1px}.adminb img{width:16px;height:16px;border-radius:5px}
.admrow{background:linear-gradient(90deg,color-mix(in srgb,#f59e0b 10%,transparent),transparent);border-radius:14px}
.del{border:1.5px solid color-mix(in srgb,var(--bad) 40%,transparent);background:transparent;color:var(--bad);border-radius:9px;padding:3px 8px;font-weight:800;font-size:12px}.del:hover{background:color-mix(in srgb,var(--bad) 10%,transparent)}