:root{ --bg:#05060f; --bg2:#0b0d1a; --card:#0e1122; --text:#eaf2ff; --muted:#9fb3d1; --border:#1e2740; --grad1:#26e0ff; --grad2:#c026d3; }
*{box-sizing:border-box} html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;color:var(--text);
  background:radial-gradient(1200px 600px at 10% -10%, rgba(38,224,255,.08), transparent),
             radial-gradient(900px 400px at 90% -10%, rgba(192,38,211,.08), transparent),
             linear-gradient(180deg,var(--bg),var(--bg2));}
a{color:inherit;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:16px}
.header{position:sticky;top:0;background:rgba(7,8,18,.72);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:50}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:40px}
.navbar{display:flex;align-items:center;justify-content:space-between;gap:12px}
.menu{display:flex;gap:8px;flex-wrap:wrap}
.menu a{padding:10px 14px;border:1px solid var(--border);border-radius:14px;background:rgba(8,12,28,.6)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 16px;border-radius:14px;background:var(--card);border:1px solid var(--border);
     transition:transform .08s ease, box-shadow .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(38,224,255,.12), 0 6px 16px rgba(192,38,211,.12)}
.btn.primary{background-image:linear-gradient(135deg,var(--grad1),var(--grad2));border:none;color:#fff;font-weight:800}
.badge{display:inline-flex;align-items:center;padding:6px 12px;border:1px solid var(--border);border-radius:999px;color:var(--muted)}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;padding:20px 0}
.hero-logo{max-width:360px;width:100%;height:auto;display:block;margin:8px auto;filter: drop-shadow(0 0 18px rgba(38,224,255,.3)) drop-shadow(0 0 10px rgba(192,38,211,.25));}
.card{background:rgba(12,16,34,.85);border:1px solid var(--border);border-radius:18px;box-shadow:0 10px 30px rgba(0,0,0,.35);padding:16px}
.grid{display:grid;gap:12px} .grid.cols-3{grid-template-columns:repeat(3,1fr)} .grid.cols-2{grid-template-columns:repeat(2,1fr)}
.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid var(--border);padding:10px;text-align:left}
.muted{color:var(--muted)} h1{margin:6px 0 8px} h2{margin:14px 0 8px} .price{font-weight:800}
.carousel{position:relative;border:1px solid var(--border);border-radius:18px;overflow:hidden;background:#0a0f1f}
.carousel img{width:100%;display:block;object-fit:cover;aspect-ratio:16/9}
.carousel .dots{position:absolute;left:0;right:0;bottom:8px;display:flex;gap:6px;justify-content:center}
.carousel .dot{width:8px;height:8px;border-radius:50%;background:#475072;opacity:.6}
.carousel .dot.active{background:linear-gradient(135deg,var(--grad1),var(--grad2));opacity:1}
input, select, textarea{width:100%;padding:12px 14px;border-radius:14px;border:1px solid var(--border);background:#0a0f1f;color:var(--text);outline:none}
input:focus, select:focus, textarea:focus{border-color:#38e0ff;box-shadow:0 0 0 3px rgba(38,224,255,.18)}
label{display:block;margin:6px 0 4px}
.hamb{display:none;flex-direction:column;gap:4px;border:1px solid var(--border);padding:8px;border-radius:10px;background:rgba(8,12,28,.6)}
.hamb span{width:22px;height:2px;background:#a7b6d6}
@media(max-width:920px){
  .hero{grid-template-columns:1fr}
  .menu{display:none;flex-direction:column;gap:6px;margin-top:10px}
  .menu.open{display:flex}
  .hamb{display:flex}
  .grid.cols-3{grid-template-columns:1fr}
  .grid.cols-2{grid-template-columns:1fr}
  .brand img{height:34px}
}
.footer{margin-top:28px;border-top:1px solid var(--border);color:var(--muted);font-size:14px;padding:16px 0}
.neon{background:linear-gradient(135deg,var(--grad1),var(--grad2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hidden{display:none}
.cookie{position:fixed;left:20px;right:20px;bottom:20px;background:#0a0f1f;border:1px solid var(--border);border-radius:12px;padding:12px;z-index:60;display:flex;gap:12px;align-items:center;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.cookie button{margin-left:auto}
.whats{position:fixed;right:18px;bottom:18px;background:linear-gradient(135deg,var(--grad1),var(--grad2));border-radius:999px;padding:12px 16px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.4);border:none;color:#fff;z-index:40}
.accordion .item{border:1px solid var(--border);border-radius:12px;margin-bottom:8px}
.accordion .head{padding:12px 14px;cursor:pointer;font-weight:600}
.accordion .body{padding:0 14px 12px 14px;display:none}
.accordion .item.open .body{display:block}
.aula{display:grid;grid-template-columns:280px 1fr;min-height:calc(100vh - 120px)}.aula aside{border-right:1px solid var(--border);background:rgba(12,16,34,.7)}.lecciones{list-style:none;margin:0;padding:0}.lecciones li{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px dashed var(--border);cursor:pointer}.lecciones li.active{background:rgba(38,224,255,.08)}.progreso{height:8px;background:#0a0f1f;border:1px solid var(--border);border-radius:10px;overflow:hidden}.progreso > div{height:100%;width:0;background:linear-gradient(135deg,var(--grad1),var(--grad2))}
.player{aspect-ratio:16/9;border:1px solid var(--border);border-radius:12px;background:#0a0f1f;display:flex;align-items:center;justify-content:center}