/* Academia Insoo · estilos v3 — responsive, móvil primero */
:root{
  --primario:#4f46e5; --acento:#f59e0b; --fondo-claro:#f5f6fb;
  --fondo:var(--fondo-claro); --superficie:#ffffff; --texto:#171b26; --suave:#667085; --borde:#e6e9f1;
  --primario-suave:color-mix(in srgb,var(--primario) 9%,var(--superficie));
  --primario-media:color-mix(in srgb,var(--primario) 18%,var(--superficie));
  --ok:#16a34a; --aviso:#d97706; --error:#dc2626;
  --radio:14px; --fuente:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --sombra:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);
  --sombra-alta:0 18px 44px rgba(16,24,40,.16);
  --alto-top:64px; --alto-tab:64px;
  --degradado:linear-gradient(135deg,var(--primario),color-mix(in srgb,var(--primario) 55%,var(--acento)));
}
[data-tema=oscuro]{
  --fondo:#0c0f16; --superficie:#161a24; --texto:#e8eaf1; --suave:#9ea7bb; --borde:#283042;
  --primario-suave:color-mix(in srgb,var(--primario) 20%,var(--superficie));
  --primario-media:color-mix(in srgb,var(--primario) 32%,var(--superficie));
  --sombra:0 1px 2px rgba(0,0,0,.4),0 10px 28px rgba(0,0,0,.35);
  --sombra-alta:0 18px 44px rgba(0,0,0,.55);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--fondo);color:var(--texto);font:16px/1.6 var(--fuente);transition:background .2s,color .2s;-webkit-tap-highlight-color:transparent}
a{color:var(--primario)}
img{max-width:100%}
h1,h2,h3,h4{line-height:1.22;margin:0 0 .5em}
h1{font-size:clamp(1.55rem,4vw,2.3rem);letter-spacing:-.02em} h2{font-size:clamp(1.15rem,2.4vw,1.35rem);letter-spacing:-.01em} h3{font-size:1.04rem}
.wrap{max-width:1180px;margin:0 auto;padding:0 clamp(14px,3vw,24px)}
.muted{color:var(--suave)} .small{font-size:.88rem} .hidden{display:none!important}
.center{text-align:center}
:focus-visible{outline:3px solid color-mix(in srgb,var(--primario) 55%,transparent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.fade{animation:entra .28s ease both}
@keyframes entra{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- barra superior ---------- */
.top{background:color-mix(in srgb,var(--superficie) 86%,transparent);backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--borde);position:sticky;top:0;z-index:30}
.top .wrap{display:flex;align-items:center;gap:14px;min-height:var(--alto-top)}
.marca{font-weight:800;font-size:1.1rem;color:var(--texto);text-decoration:none;display:flex;align-items:center;gap:10px;min-width:0}
.marca span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.marca img{height:34px;width:auto;border-radius:8px}
.marca i{width:30px;height:30px;border-radius:10px;background:var(--degradado);display:inline-block;flex:none}
.nav{display:flex;gap:2px;margin-left:auto;align-items:center}
.nav a,.nav button{padding:8px 14px;border-radius:99px;text-decoration:none;color:var(--suave);font-weight:600;background:none;border:0;cursor:pointer;font-size:.93rem;font-family:inherit;white-space:nowrap}
.nav a:hover,.nav button:hover{background:var(--primario-suave);color:var(--texto)}
.nav a.on{background:var(--primario-suave);color:var(--primario)}
main.wrap,main{padding-top:26px;padding-bottom:80px}
.anuncio{background:var(--degradado);color:#fff;text-align:center;padding:9px 14px;font-size:.9rem;font-weight:600}

/* barra inferior (solo móvil) */
.tabbar{display:none}
@media(max-width:820px){
  :root{--alto-top:56px}
  .top .nav a,.top .nav #btnSalir{display:none}
  body.con-tabs{padding-bottom:calc(var(--alto-tab) + env(safe-area-inset-bottom))}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;background:color-mix(in srgb,var(--superficie) 92%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--borde);padding:6px 6px calc(6px + env(safe-area-inset-bottom))}
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:1px;padding:6px 2px;color:var(--suave);text-decoration:none;font-size:.7rem;font-weight:700;border-radius:12px}
  .tabbar a b{font-size:1.25rem;line-height:1.1;font-weight:400}
  .tabbar a.on{color:var(--primario);background:var(--primario-suave)}
  main.wrap,main{padding-top:18px;padding-bottom:40px}
}

/* ---------- componentes base ---------- */
.card{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);box-shadow:var(--sombra)}
.pad{padding:clamp(16px,3vw,24px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;min-height:42px;border-radius:calc(var(--radio) * .8);border:1px solid transparent;font:inherit;font-weight:700;font-size:.95rem;cursor:pointer;text-decoration:none;background:var(--primario);color:#fff;transition:filter .15s,transform .05s,box-shadow .15s;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.btn:hover{filter:brightness(1.08)} .btn:active{transform:scale(.98)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.sec{background:var(--superficie);color:var(--texto);border-color:var(--borde);box-shadow:none}
.btn.sec:hover{background:var(--primario-suave);filter:none}
.btn.ok{background:var(--ok)} .btn.mal{background:var(--error)}
.btn.wa{background:#25d366;color:#fff} .btn.pp{background:#0070ba;color:#fff}
.btn.acento{background:var(--acento);color:#1b1f2a}
.btn.sm{padding:6px 12px;min-height:34px;font-size:.84rem} .btn.block{width:100%}
.btn.grande{padding:14px 24px;font-size:1.02rem;min-height:50px}
label{display:block;font-weight:600;font-size:.88rem;margin:14px 0 5px}
input,select,textarea{width:100%;padding:11px 13px;border:1px solid var(--borde);border-radius:calc(var(--radio) * .7);font:inherit;font-size:16px;background:var(--superficie);color:var(--texto)}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--primario) 45%,transparent);border-color:var(--primario)}
input[type=checkbox],input[type=radio]{width:auto}
input[type=color]{padding:2px;height:44px;cursor:pointer}
input[type=range]{padding:0}
textarea{min-height:92px;resize:vertical}
.row{display:flex;gap:14px;flex-wrap:wrap}.row>*{flex:1 1 180px}
.row.fin{align-items:flex-end}
.err{background:color-mix(in srgb,var(--error) 12%,var(--superficie));color:var(--error);border:1px solid color-mix(in srgb,var(--error) 35%,transparent);padding:10px 13px;border-radius:12px;margin:12px 0;font-size:.92rem}
.nota{background:color-mix(in srgb,var(--acento) 16%,var(--superficie));border:1px solid color-mix(in srgb,var(--acento) 40%,transparent);padding:10px 13px;border-radius:12px;font-size:.9rem}
.tag{display:inline-block;padding:2px 10px;border-radius:99px;font-size:.76rem;font-weight:700;background:var(--primario-suave);color:var(--suave);white-space:nowrap}
.tag.activo,.tag.ok{background:color-mix(in srgb,var(--ok) 18%,var(--superficie));color:var(--ok)}
.tag.pendiente,.tag.aviso{background:color-mix(in srgb,var(--acento) 22%,var(--superficie));color:var(--aviso)}
.tag.vencido,.tag.cancelado,.tag.mal{background:color-mix(in srgb,var(--error) 15%,var(--superficie));color:var(--error)}
.tag.plan{background:var(--degradado);color:#fff}
.barra{height:8px;border-radius:99px;background:var(--borde);overflow:hidden}
.barra>i{display:block;height:100%;background:linear-gradient(90deg,var(--primario),var(--acento));border-radius:99px;transition:width .4s}
.sk{background:linear-gradient(90deg,var(--borde),color-mix(in srgb,var(--borde) 40%,var(--superficie)),var(--borde));background-size:200% 100%;animation:brillo 1.2s linear infinite;border-radius:12px}
@keyframes brillo{to{background-position:-200% 0}}
.vacio-grande{text-align:center;padding:40px 18px}.vacio-grande .ico{font-size:2.6rem}

/* ---------- acceso ---------- */
.auth-pagina{min-height:100vh;min-height:100dvh;display:grid;grid-template-columns:1.05fr 1fr}
.auth-lado{background:var(--degradado);color:#fff;padding:clamp(28px,6vw,64px);display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.auth-lado::before,.auth-lado::after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.1)}
.auth-lado::before{width:340px;height:340px;right:-90px;top:-90px}.auth-lado::after{width:220px;height:220px;left:-60px;bottom:-60px}
.auth-lado>*{position:relative}
.auth-lado h1{color:#fff;font-size:clamp(1.8rem,4vw,2.8rem)}.auth-lado p{opacity:.92;font-size:1.1rem;max-width:440px}
.auth-lado img{height:56px;width:auto;align-self:flex-start;margin-bottom:20px;border-radius:12px;background:#fff;padding:4px}
.auth-form{display:flex;align-items:center;justify-content:center;padding:28px 18px}
.auth{width:100%;max-width:400px}
.auth .tabs{display:flex;gap:4px;background:var(--primario-suave);padding:4px;border-radius:14px;margin:18px 0 6px}
.auth .tabs button{flex:1;padding:10px;border:0;background:none;border-radius:11px;font:inherit;font-weight:700;color:var(--suave);cursor:pointer}
.auth .tabs button.on{background:var(--superficie);color:var(--texto);box-shadow:var(--sombra)}
@media(max-width:820px){.auth-pagina{grid-template-columns:1fr}.auth-lado{min-height:190px;padding:26px 22px}.auth-lado p{font-size:1rem}}
.trampa{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}

/* ---------- catálogo ---------- */
.hero{border-radius:calc(var(--radio) * 1.5);padding:clamp(24px,5vw,52px);background:var(--degradado);color:#fff;margin-bottom:22px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.12)}
.hero::before{content:"";position:absolute;right:90px;bottom:-90px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.08)}
.hero>*{position:relative}
.hero h1{color:#fff;margin-bottom:.3em}.hero p{margin:0;max-width:560px;opacity:.93;font-size:1.05rem}
.hero .cifras{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.hero .cifras span{background:rgba(255,255,255,.18);border-radius:99px;padding:5px 14px;font-size:.85rem;font-weight:700;backdrop-filter:blur(4px)}
.continuar{display:flex;align-items:center;gap:16px;padding:16px 20px;margin-bottom:22px;flex-wrap:wrap;text-decoration:none;color:inherit;transition:transform .15s}
.continuar:hover{transform:translateY(-2px)}
.continuar .ico{width:48px;height:48px;border-radius:15px;background:var(--degradado);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem}
.continuar .txt{flex:1 1 200px;min-width:0}
.buscar{position:relative;margin-bottom:14px}
.buscar input{padding-left:42px;border-radius:99px}
.buscar::before{content:"🔎";position:absolute;left:15px;top:50%;transform:translateY(-50%);font-size:.95rem;opacity:.7}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 20px}
@media(max-width:700px){.chips{flex-wrap:nowrap;overflow-x:auto;margin-inline:-14px;padding:2px 14px 6px;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}}
.chip{padding:7px 15px;border-radius:99px;border:1px solid var(--borde);background:var(--superficie);font:inherit;font-weight:600;font-size:.88rem;cursor:pointer;color:var(--suave);white-space:nowrap}
.chip.on{background:var(--primario);border-color:var(--primario);color:#fff}
.sec-titulo{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:26px 0 14px}.sec-titulo h2{margin:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,290px),1fr));gap:20px}
.curso{display:flex;flex-direction:column;overflow:hidden;text-decoration:none;color:inherit;transition:transform .18s,box-shadow .18s}
.curso:hover{transform:translateY(-4px);box-shadow:var(--sombra-alta)}
.portada{aspect-ratio:16/9;background:var(--degradado);display:flex;align-items:center;justify-content:center;color:#fff;font-size:2.6rem;font-weight:800;overflow:hidden;position:relative}
.portada img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.curso:hover .portada img{transform:scale(1.05)}
.portada .tag{position:absolute;top:10px;left:10px;background:rgba(255,255,255,.93);color:#1b1f2a}
.portada .tag.der{left:auto;right:10px}
.curso .cuerpo{padding:16px 18px 18px;display:flex;flex-direction:column;gap:7px;flex:1}
.curso .cuerpo h3{margin:0;font-size:1.08rem}
.curso .cuerpo p{margin:0;color:var(--suave);font-size:.9rem}
.curso .meta{display:flex;gap:12px;flex-wrap:wrap;font-size:.8rem;color:var(--suave)}
.curso .pie{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:10px;gap:10px}
.precio{font-weight:800;font-size:1.2rem}

/* planes y combos */
.plan{display:flex;flex-direction:column;overflow:hidden;position:relative}
.plan .cab{background:var(--degradado);color:#fff;padding:20px 20px 16px;position:relative}
.plan .cab h3{color:#fff;font-size:1.2rem;margin:6px 0 2px}
.plan .cab .tag{background:rgba(255,255,255,.22);color:#fff}
.plan .precio-plan{font-size:2.1rem;font-weight:800;letter-spacing:-.02em}.plan .precio-plan small{font-size:.9rem;font-weight:600;opacity:.85}
.plan .cuerpo{padding:16px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.plan ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;font-size:.92rem}
.plan li::before{content:"✓";color:var(--ok);font-weight:800;margin-right:8px}
.ahorro{background:color-mix(in srgb,var(--ok) 16%,var(--superficie));color:var(--ok);border-radius:10px;padding:5px 10px;font-size:.82rem;font-weight:700;align-self:flex-start}
.plan .btn{margin-top:auto}
.franja-planes{display:flex;align-items:center;gap:16px;padding:16px 20px;margin-bottom:22px;flex-wrap:wrap;background:linear-gradient(120deg,color-mix(in srgb,var(--acento) 18%,var(--superficie)),var(--superficie));text-decoration:none;color:inherit}
.franja-planes .ico{font-size:1.8rem}

/* ---------- ficha del curso ---------- */
.migas{display:flex;align-items:center;gap:6px;margin-bottom:14px;font-size:.9rem}
.atras{display:inline-flex;align-items:center;gap:8px;padding:8px 16px 8px 12px;border-radius:99px;background:var(--superficie);border:1px solid var(--borde);color:var(--texto);text-decoration:none;font-weight:700;font-size:.9rem;box-shadow:var(--sombra);cursor:pointer;font-family:inherit;transition:transform .15s,background .15s}
.atras:hover{background:var(--primario-suave);transform:translateX(-2px)}
.atras b{width:22px;height:22px;border-radius:50%;background:var(--primario);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:.85rem}
.cabecera-curso{margin-bottom:22px}
.meta-chips{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.meta-chips span{background:var(--primario-suave);border-radius:99px;padding:4px 12px;font-size:.84rem;font-weight:600}
.detalle{display:grid;grid-template-columns:1fr 360px;gap:28px;align-items:start}
.compra{position:sticky;top:calc(var(--alto-top) + 16px)}
@media(max-width:900px){.detalle{grid-template-columns:1fr}.compra{position:static;order:-1}}
.aprenderas{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;padding:20px}
@media(max-width:640px){.aprenderas{grid-template-columns:1fr}}
.aprenderas div{display:flex;gap:10px;font-size:.95rem}
.aprenderas div::before{content:"✓";color:var(--ok);font-weight:800}
.lista-puntos{margin:0;padding-left:20px}.lista-puntos li{margin:4px 0}
.instructor{display:flex;gap:16px;align-items:flex-start;padding:20px}
.instructor img,.instructor .avatar{width:76px;height:76px;border-radius:50%;object-fit:cover;flex:none}
.instructor .avatar{background:var(--degradado);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.6rem}
.seccion{margin-top:30px}
details.modulo{border:1px solid var(--borde);border-radius:var(--radio);margin-bottom:10px;overflow:hidden;background:var(--superficie)}
details.modulo>summary{padding:13px 16px;background:var(--primario-suave);cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:10px;align-items:center}
details.modulo>summary::-webkit-details-marker{display:none}
details.modulo>summary::after{content:"▾";color:var(--suave);transition:transform .2s}
details.modulo[open]>summary::after{transform:rotate(180deg)}
.modulo .desc{padding:10px 16px 0;font-size:.88rem;color:var(--suave)}
.leccion{display:flex;align-items:center;gap:11px;padding:12px 16px;border-top:1px solid var(--borde);color:inherit;text-decoration:none;font-size:.93rem}
a.leccion:hover{background:var(--primario-suave)}
.leccion.on{background:var(--primario-suave);font-weight:700}
.leccion .ico{width:24px;text-align:center;flex:none}
.leccion .t{flex:1;min-width:0}
.leccion .fin{font-size:.78rem;color:var(--suave);white-space:nowrap}
.leccion.hecha .ico{color:var(--ok)}
.leccion.bloq{color:var(--suave)}
.compra .precio-grande{font-size:2.1rem;font-weight:800;margin:6px 0;letter-spacing:-.02em}
.caja-cert{display:flex;gap:10px;align-items:center;padding:12px;border-radius:12px;background:color-mix(in srgb,var(--acento) 14%,var(--superficie));margin-top:12px;font-size:.88rem}
.caja-cert b{font-size:1.5rem}

/* ---------- pago ---------- */
.metodos{display:grid;gap:8px;margin:8px 0 14px}
.metodo{display:flex;align-items:center;gap:12px;padding:12px 14px;border:2px solid var(--borde);border-radius:14px;cursor:pointer;background:var(--superficie);text-align:left;font:inherit;color:inherit;width:100%}
.metodo:hover{border-color:color-mix(in srgb,var(--primario) 45%,var(--borde))}
.metodo.on{border-color:var(--primario);background:var(--primario-suave)}
.metodo .ico{font-size:1.5rem;width:34px;text-align:center}
.metodo b{display:block}
.detalle-metodo{border:1px dashed var(--borde);border-radius:14px;padding:14px;margin-bottom:14px}
.dato-fila{display:flex;align-items:center;gap:10px;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--borde)}
.dato-fila:last-child{border-bottom:0}
.dato-fila span{min-width:0;overflow-wrap:anywhere}
pre.datos{white-space:pre-wrap;background:var(--primario-suave);border-radius:12px;padding:12px;font:inherit;font-size:.92rem;margin:6px 0}
.qr{max-width:220px;border-radius:14px;border:1px solid var(--borde);display:block;margin:8px auto}
.total-pago{display:flex;justify-content:space-between;align-items:baseline;padding:12px 0;font-size:1.05rem}
.total-pago b{font-size:1.7rem}
.cupon-fila{display:flex;gap:8px}.cupon-fila input{text-transform:uppercase}

/* ---------- lección ---------- */
.barra-leccion{position:sticky;top:var(--alto-top);z-index:20;background:color-mix(in srgb,var(--superficie) 92%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--borde)}
.barra-leccion .wrap{display:flex;align-items:center;gap:12px;min-height:54px}
.barra-leccion .tit{flex:1;min-width:0}
.barra-leccion .tit b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.95rem}
.barra-leccion .tit .barra{height:5px;margin-top:5px}
@media(max-width:560px){.atras span{display:none}.atras{padding:8px 10px}}
.player{display:grid;grid-template-columns:340px 1fr;gap:22px;align-items:start;padding-top:22px}
.player.cine{grid-template-columns:1fr}.player.cine .lateral{display:none}
.lateral{position:sticky;top:calc(var(--alto-top) + 70px);max-height:calc(100vh - var(--alto-top) - 90px);overflow:auto;padding:14px}
.btn-contenido{display:none}
@media(max-width:960px){
  .player{grid-template-columns:1fr;padding-top:16px}
  .btn-contenido{display:inline-flex}
  .lateral{display:none}
  #btnCine{display:none}
}
.drawer-fondo{position:fixed;inset:0;background:rgba(10,12,18,.55);z-index:70;animation:entra .2s}
.drawer{position:absolute;right:0;top:0;bottom:0;width:min(92vw,400px);background:var(--superficie);overflow:auto;padding:16px;box-shadow:var(--sombra-alta);animation:desliza .25s ease}
@keyframes desliza{from{transform:translateX(30px);opacity:0}to{transform:none;opacity:1}}
.video{position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--radio);overflow:hidden}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.embed{position:relative;aspect-ratio:16/10;min-height:320px;border-radius:var(--radio);overflow:hidden;border:1px solid var(--borde);background:#fff}
.embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media(max-width:600px){.embed{aspect-ratio:auto;height:70vh;min-height:300px}}
.contenido{overflow-wrap:anywhere}
.contenido img{border-radius:12px;height:auto}
.contenido img.img-s{max-width:240px}.contenido img.img-m{max-width:480px}.contenido img.img-l{max-width:720px}.contenido img.img-f{width:100%}
.contenido table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}.contenido td,.contenido th{border:1px solid var(--borde);padding:7px 11px}
.contenido blockquote{margin:1em 0;padding:8px 16px;border-left:4px solid var(--primario);background:var(--primario-suave);border-radius:0 12px 12px 0}
.contenido pre{background:var(--primario-suave);padding:12px;border-radius:12px;overflow:auto}
.acciones-leccion{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:16px}
.adjuntos{display:grid;gap:8px;margin-top:6px}
.adjunto{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--borde);border-radius:12px;text-decoration:none;color:inherit;background:var(--superficie)}
.adjunto:hover{background:var(--primario-suave)}
.nav-fijo{display:none}
@media(max-width:820px){
  body.en-leccion{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  body.en-leccion .tabbar{display:none}
  .acciones-leccion{display:none}
  .nav-fijo{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:45;gap:8px;align-items:center;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--superficie) 94%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--borde)}
  .nav-fijo .centro{flex:1;text-align:center;min-width:0}
  .nav-fijo .btn{padding-inline:14px}
}

/* reproductor propio de YouTube */
.vp{background:#0b0d12;border-radius:var(--radio);overflow:hidden;outline:none;position:relative}
.vp-stage{aspect-ratio:16/9;background:#000;position:relative}
.vp-stage iframe,.vp-yt{position:absolute;inset:0;width:100%;height:100%;border:0}
.vp-bar{display:flex;align-items:center;gap:8px;padding:9px 12px;background:#12151d;color:#e8eaf1;flex-wrap:wrap}
.vp-btn{background:none;border:0;color:#e8eaf1;font-size:.95rem;cursor:pointer;padding:7px 9px;border-radius:9px;font-family:inherit}
.vp-btn:hover{background:rgba(255,255,255,.12)}
.vp-t{font-size:.8rem;font-variant-numeric:tabular-nums;color:#b8bfd0;min-width:38px;text-align:center}
.vp-track{flex:1 1 140px;height:26px;position:relative;cursor:pointer;touch-action:none}
.vp-track::before{content:"";position:absolute;left:0;right:0;top:10px;height:6px;border-radius:9px;background:rgba(255,255,255,.18)}
.vp-seen,.vp-played{position:absolute;left:0;top:10px;height:6px;border-radius:9px;width:0}
.vp-seen{background:rgba(255,255,255,.28)}.vp-played{background:var(--acento)}
.vp-knob{position:absolute;top:5px;width:16px;height:16px;border-radius:50%;background:#fff;margin-left:-8px;left:0;box-shadow:0 1px 4px rgba(0,0,0,.5)}
.vp-rate{width:auto;padding:4px 6px;background:#1c202b;color:#e8eaf1;border:1px solid #2b3142;font-size:.82rem;border-radius:9px}
.vp-msg{position:absolute;left:50%;top:14px;transform:translateX(-50%);background:rgba(0,0,0,.78);color:#fff;padding:8px 14px;border-radius:12px;font-size:.88rem;z-index:3;max-width:90%;text-align:center}
.vp:fullscreen{display:flex;flex-direction:column;border-radius:0}
.vp:fullscreen .vp-stage{flex:1;aspect-ratio:auto}
@media(max-width:560px){.vp-bar{gap:4px;padding:8px}.vp-rate{padding:4px 2px}}

/* ---------- evaluaciones ---------- */
.quiz-intro{text-align:center;padding:10px 0}
.quiz-datos{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin:16px 0}
.quiz-datos div{background:var(--primario-suave);border-radius:14px;padding:12px}.quiz-datos b{display:block;font-size:1.3rem}
.pregunta{border:1px solid var(--borde);border-radius:var(--radio);padding:16px;margin-bottom:14px;background:var(--superficie)}
.pregunta .num{display:inline-flex;width:28px;height:28px;border-radius:50%;background:var(--primario);color:#fff;align-items:center;justify-content:center;font-weight:800;font-size:.85rem;margin-right:8px}
.pregunta h3{display:flex;align-items:flex-start;gap:4px;margin-bottom:12px}
.opcion{display:flex;align-items:center;gap:12px;padding:12px 14px;border:2px solid var(--borde);border-radius:12px;margin-bottom:8px;cursor:pointer}
.opcion:hover{border-color:color-mix(in srgb,var(--primario) 45%,var(--borde))}
.opcion.sel{border-color:var(--primario);background:var(--primario-suave)}
.opcion input{width:20px;height:20px;flex:none}
.opcion.bien{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 12%,var(--superficie))}
.opcion.mal{border-color:var(--error);background:color-mix(in srgb,var(--error) 10%,var(--superficie))}
.orden-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border:2px solid var(--borde);border-radius:12px;margin-bottom:8px;background:var(--superficie)}
.orden-item .t{flex:1}
.resultado{text-align:center;padding:14px 0}
.anillo{width:130px;height:130px;border-radius:50%;margin:10px auto;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:800;background:conic-gradient(var(--c,var(--ok)) calc(var(--p) * 1%),var(--borde) 0)}
.anillo span{width:100px;height:100px;border-radius:50%;background:var(--superficie);display:flex;align-items:center;justify-content:center}
.explica{margin-top:8px;padding:10px 12px;border-radius:10px;background:var(--primario-suave);font-size:.9rem}
.cronometro{position:sticky;top:calc(var(--alto-top) + 58px);z-index:5;float:right;background:var(--texto);color:var(--superficie);padding:5px 14px;border-radius:99px;font-weight:800;font-variant-numeric:tabular-nums}

/* ---------- certificados ---------- */
.cert-card{overflow:hidden}
.cert-card canvas,.cert-vista canvas{width:100%;height:auto;display:block;background:#fff;border-bottom:1px solid var(--borde)}
.cert-vista canvas{border:1px solid var(--borde);border-radius:12px;box-shadow:var(--sombra-alta)}
.cert-card .pie{padding:14px 16px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ---------- modal, avisos ---------- */
.fondo-modal{position:fixed;inset:0;background:rgba(10,12,18,.55);display:flex;align-items:flex-start;justify-content:center;padding:5vh 12px;z-index:60;overflow:auto;animation:entra .2s}
.modal{background:var(--superficie);border-radius:calc(var(--radio) * 1.3);width:100%;padding:clamp(18px,3vw,26px);box-shadow:var(--sombra-alta)}
@media(max-width:600px){
  .fondo-modal{padding:0;align-items:flex-end}
  .modal{max-width:none!important;border-radius:22px 22px 0 0;max-height:94vh;max-height:94dvh;overflow:auto;padding-bottom:calc(20px + env(safe-area-inset-bottom))}
}
.toast{position:fixed;bottom:calc(22px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:#111827;color:#fff;padding:12px 20px;border-radius:14px;z-index:90;font-size:.92rem;max-width:90vw;box-shadow:0 8px 30px rgba(0,0,0,.3);animation:entra .2s}
.toast.mal{background:var(--error)}
@media(max-width:820px){.toast{bottom:calc(86px + env(safe-area-inset-bottom))}}

/* ---------- panel de administración ---------- */
.adm{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.adm-lado{background:var(--superficie);border-right:1px solid var(--borde);padding:18px 12px;position:sticky;top:0;height:100vh;overflow:auto;display:flex;flex-direction:column;gap:3px}
.adm-lado .marca{padding:6px 8px 16px}
.adm-lado a,.adm-lado button{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;text-decoration:none;color:var(--suave);font:inherit;font-weight:600;font-size:.93rem;background:none;border:0;cursor:pointer;text-align:left}
.adm-lado a:hover,.adm-lado button:hover{background:var(--primario-suave);color:var(--texto)}
.adm-lado a.on{background:var(--primario-suave);color:var(--primario)}
.adm-lado .sep{flex:1}
.adm-lado .ico{width:22px;text-align:center}
.adm-cuerpo{padding:26px clamp(14px,3vw,36px) 90px;min-width:0}
@media(max-width:860px){
  .adm{grid-template-columns:1fr}
  .adm-lado{position:fixed;left:0;right:0;bottom:0;top:auto;height:auto;z-index:40;flex-direction:row;overflow-x:auto;border-right:0;border-top:1px solid var(--borde);padding:6px 6px calc(6px + env(safe-area-inset-bottom));gap:2px;background:color-mix(in srgb,var(--superficie) 94%,transparent);backdrop-filter:blur(14px)}
  .adm-lado .marca,.adm-lado .sep,.adm-lado .solo-pc{display:none}
  .adm-lado a,.adm-lado button{flex:0 0 auto;flex-direction:column;gap:0;padding:6px 12px;font-size:.68rem;text-align:center}
  .adm-lado .ico{font-size:1.25rem}
  .adm-cuerpo{padding-top:18px}
}
.titulo-fila{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.titulo-fila h1{margin:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:24px}
.stat{padding:18px}.stat b{display:block;font-size:1.8rem;letter-spacing:-.02em}
.barras{display:flex;align-items:flex-end;gap:12px;height:140px;padding-top:10px}
.barras>div{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:6px;font-size:.78rem;color:var(--suave)}
.barras i{display:block;width:100%;max-width:46px;border-radius:9px 9px 3px 3px;background:linear-gradient(180deg,var(--acento),var(--primario));min-height:3px}
table.t{width:100%;border-collapse:collapse;font-size:.91rem}
table.t th{text-align:left;color:var(--suave);font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;padding:9px 10px;border-bottom:1px solid var(--borde)}
table.t td{padding:11px 10px;border-bottom:1px solid var(--borde);vertical-align:top}
table.t tr:last-child td{border-bottom:0}
@media(max-width:720px){
  table.t.apilar thead,table.t.apilar tr:first-child:has(th){display:none}
  table.t.apilar,table.t.apilar tbody{display:block}
  table.t.apilar tr{display:block;border:1px solid var(--borde);border-radius:14px;padding:8px 12px;margin-bottom:10px}
  table.t.apilar td{display:block;border:0;padding:5px 0;min-width:0!important}
  table.t.apilar td[data-l]::before{content:attr(data-l);display:block;font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;color:var(--suave)}
}
.scroll{overflow-x:auto}
.acciones{display:flex;gap:6px;flex-wrap:wrap}
.pestanas{display:flex;gap:4px;border-bottom:1px solid var(--borde);margin-bottom:20px;overflow-x:auto;scrollbar-width:none}
.pestanas button{padding:10px 16px;border:0;background:none;font:inherit;font-weight:700;color:var(--suave);cursor:pointer;border-bottom:3px solid transparent;white-space:nowrap}
.pestanas button.on{color:var(--primario);border-bottom-color:var(--primario)}

/* constructor del curso (arrastrar y soltar) */
.mod-caja{margin-bottom:14px}
.mod-cab{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.mod-cab h2{margin:0;flex:1 1 200px;font-size:1.05rem}
.asa{cursor:grab;color:var(--suave);padding:2px 6px;user-select:none;font-size:1.1rem;line-height:1}
.asa:active{cursor:grabbing}
.lec-lista{margin-top:10px;min-height:36px;border:2px dashed transparent;border-radius:12px;padding:2px}
.lec-lista.sobre{border-color:var(--primario);background:var(--primario-suave)}
.lec-fila{display:flex;align-items:center;gap:10px;padding:9px 10px;border:1px solid var(--borde);border-radius:12px;margin-bottom:6px;background:var(--superficie);flex-wrap:wrap}
.lec-fila .t{flex:1;min-width:140px}
.arrastrando{opacity:.45}
.vacio{padding:10px 12px;color:var(--suave);font-size:.88rem}

/* editor de texto enriquecido */
.editor-barra{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:6px;padding:6px;border:1px solid var(--borde);border-radius:12px;background:var(--primario-suave)}
.editor-barra .btn{padding:5px 10px;min-height:32px}
.editor{min-height:200px;max-height:55vh;overflow:auto;border:1px solid var(--borde);border-radius:12px;padding:12px 14px;background:var(--superficie);overflow-wrap:anywhere}
.editor:focus{outline:2px solid color-mix(in srgb,var(--primario) 45%,transparent)}
.editor img{max-width:100%;cursor:pointer;border-radius:10px}
.editor img.sel{outline:3px solid var(--primario)}
.editor img.img-s{max-width:240px}.editor img.img-m{max-width:480px}.editor img.img-l{max-width:720px}.editor img.img-f{width:100%}
.embed-ph{padding:18px;margin:10px 0;border:2px dashed var(--primario);border-radius:12px;background:var(--primario-suave);text-align:center;font-size:.88rem}
.embed-ph::before{content:"🧩 Contenido embebido: " attr(data-embed)}

/* recortador de imágenes */
.recorte{position:relative;margin:0 auto;border-radius:12px;overflow:hidden;background:#222;touch-action:none;cursor:grab;max-width:100%}
.recorte canvas{display:block;width:100%;height:100%}
.recorte::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 2px rgba(255,255,255,.9);pointer-events:none;border-radius:12px}
.biblioteca{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;max-height:46vh;overflow:auto}
.biblioteca .item{border:2px solid transparent;border-radius:12px;overflow:hidden;cursor:pointer;background:var(--primario-suave);position:relative;aspect-ratio:1}
.biblioteca .item:hover{border-color:var(--primario)}
.biblioteca img{width:100%;height:100%;object-fit:cover;display:block}
.vista-img{width:100%;max-height:150px;object-fit:cover;border-radius:12px;border:1px solid var(--borde);background:var(--primario-suave)}
.var-chips{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}
.var-chips button{border:1px dashed var(--primario);background:var(--primario-suave);color:var(--primario);border-radius:99px;padding:3px 10px;font:inherit;font-size:.8rem;font-weight:700;cursor:pointer}
.burbuja-wa{background:#dcf8c6;color:#111;border-radius:14px 14px 14px 4px;padding:10px 14px;font-size:.9rem;white-space:pre-wrap;margin-top:8px;max-width:520px}
[data-tema=oscuro] .burbuja-wa{background:#1f3b2c;color:#e8f5e9}
.interruptor{display:flex;gap:10px;align-items:center;font-weight:600;margin:14px 0 0;cursor:pointer}
.interruptor input{width:20px;height:20px}
.cert-editor{display:grid;grid-template-columns:minmax(0,420px) 1fr;gap:22px;align-items:start}
@media(max-width:1000px){.cert-editor{grid-template-columns:1fr}}
.cert-editor .vista{position:sticky;top:16px}
.cert-editor canvas{width:100%;height:auto;border:1px solid var(--borde);border-radius:10px;box-shadow:var(--sombra)}
.opt-pregunta{display:flex;gap:8px;align-items:center;margin-bottom:6px}
.opt-pregunta input[type=text]{flex:1}