/* ===== Ruta de aprendizaje — Liquid Glass, tema oscuro único ===== */
:root{
  --fondo:#070907;
  --verde:#4ade80;
  --verde-fuerte:#22c55e;
  --verde-suave:rgba(74,222,128,.14);
  --texto:#f2f5f2;
  --texto-sec:#9db3a3;
  --texto-tenue:#6b7f70;
  --glass-fondo:linear-gradient(135deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  --glass-borde:rgba(255,255,255,.10);
  --glass-luz:inset 0 1px 0 rgba(255,255,255,.14);
  --glass-sombra:0 8px 32px rgba(0,0,0,.38);
  --radio:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--fondo);color:var(--texto);
  font-family:'Inter',-apple-system,'Segoe UI',Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;min-height:100vh;
}
/* Ambiente: resplandores suaves fijos */
.ambiente{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 500px at 12% -5%,rgba(74,222,128,.10),transparent 60%),
    radial-gradient(800px 500px at 95% 30%,rgba(168,85,247,.07),transparent 60%),
    radial-gradient(700px 600px at 50% 110%,rgba(34,197,94,.06),transparent 60%);
}
/* ===== Botón menú móvil ===== */
#menu-btn{
  display:none;position:fixed;top:14px;left:14px;z-index:70;
  width:46px;height:46px;border-radius:16px;cursor:pointer;
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);
  box-shadow:var(--glass-luz),var(--glass-sombra);color:var(--texto);
  align-items:center;justify-content:center;
}
#overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:60;backdrop-filter:blur(2px)}
/* ===== Sidebar glass ===== */
#sidebar{
  position:fixed;top:0;left:0;bottom:0;width:302px;z-index:65;
  display:flex;flex-direction:column;overflow:hidden;
  background:rgba(13,18,15,.58);
  backdrop-filter:blur(26px) saturate(160%);-webkit-backdrop-filter:blur(26px) saturate(160%);
  border-right:1px solid var(--glass-borde);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.side-head{
  padding:22px 24px;font-size:19px;font-weight:700;letter-spacing:-.01em;flex-shrink:0;
  border-bottom:1px solid rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
#side-collapse{
  width:34px;height:34px;border-radius:12px;cursor:pointer;flex-shrink:0;
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--glass-luz);color:var(--texto-sec);
  display:inline-flex;align-items:center;justify-content:center;transition:all .15s;
}
#side-collapse:hover{color:var(--verde);border-color:rgba(74,222,128,.4);transform:translateX(-2px)}
#sidebar{transition:transform .28s ease}
#contenido{transition:margin-left .28s ease}
body.menu-colapsado #sidebar{transform:translateX(-105%)}
body.menu-colapsado #contenido{margin-left:0}
body.menu-colapsado #menu-btn{display:inline-flex}
#side-nav{flex:1;overflow-y:auto;padding:18px 14px 24px;position:relative;z-index:1}
#side-nav::-webkit-scrollbar{width:8px}
#side-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:8px}
.mod-bloque{margin-bottom:20px}
.mod-cab{padding:6px 12px 8px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-radius:12px;transition:background .15s}
.mod-cab.plegable{cursor:pointer}
.mod-cab.plegable:hover{background:rgba(255,255,255,.045)}
.mod-cab.plegable:focus-visible{outline:2px solid var(--verde-fuerte);outline-offset:2px}
.mod-chev{color:var(--verde);font-size:13px;line-height:1;transition:transform .22s;flex-shrink:0;padding-right:2px}
.mod-bloque.plegado .mod-chev{transform:rotate(-90deg)}
.mod-bloque.plegado .clase-fila,.mod-bloque.plegado .mod-progreso{display:none}
/* Vidrio esmerilado sobre las clases de módulos próximos (sidebar) */
.mod-clases-bloqueadas{position:relative;overflow:hidden;border-radius:14px;margin-top:2px}
.mod-clases-bloqueadas .tm-borroso{filter:blur(5px);opacity:.6;user-select:none;pointer-events:none}
.mod-clases-bloqueadas .tm-vidrio-side{
  position:absolute;inset:0;z-index:2;
  background:linear-gradient(135deg,rgba(255,255,255,.10),rgba(255,255,255,.02));
  backdrop-filter:blur(10px) saturate(160%);-webkit-backdrop-filter:blur(10px) saturate(160%);
  box-shadow:var(--glass-luz),inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;gap:10px;
}
.mod-clases-bloqueadas .tm-vidrio-side .tm-candado{width:20px;height:20px;flex-shrink:0}
.mod-clases-bloqueadas .tm-vidrio-side .tm-prox-texto{font-size:11px}
.mod-num{color:var(--verde);font-size:13px;font-weight:700}
.mod-nombre{color:var(--texto);font-size:16px;font-weight:700;margin-top:2px;line-height:1.3}
.badge-prox{
  display:inline-block;margin-top:6px;font-size:10px;font-weight:700;letter-spacing:.08em;
  color:var(--verde);border:1px solid rgba(74,222,128,.35);border-radius:999px;padding:3px 10px;
  background:rgba(74,222,128,.08);backdrop-filter:blur(8px);
}
.clase-fila{
  display:flex;gap:12px;align-items:flex-start;text-decoration:none;
  padding:9px 12px;border-radius:14px;transition:background .15s;
  border:1px solid transparent;
}
.clase-fila:hover{background:rgba(255,255,255,.05)}
.clase-fila.activa{
  background:var(--glass-fondo);border-color:var(--glass-borde);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--glass-luz);
}
.clase-num{color:var(--verde);font-weight:700;font-size:14px;min-width:16px;padding-top:1px}
.clase-tit{color:var(--texto-sec);font-size:14.5px;line-height:1.4}
.clase-fila.activa .clase-tit{color:var(--texto);font-weight:600}
.clase-check{margin-left:auto;color:var(--verde);font-size:14px;flex-shrink:0}
.mod-progreso{height:4px;background:rgba(255,255,255,.08);border-radius:4px;margin:4px 12px 0;overflow:hidden}
.mod-progreso i{display:block;height:100%;background:linear-gradient(90deg,var(--verde-fuerte),var(--verde));border-radius:4px;transition:width .3s}
.side-foot{
  padding:20px 24px;border-top:1px solid rgba(255,255,255,.07);
  color:var(--texto-sec);font-size:14px;line-height:1.5;flex-shrink:0;
}
/* ===== Contenido ===== */
#contenido{margin-left:302px;padding:52px 56px 90px;min-height:100vh;position:relative;z-index:1}
.contenedor{max-width:960px}
.eyebrow{color:var(--verde);font-weight:700;font-size:16px;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.eyebrow::before{content:"";width:26px;height:3px;background:linear-gradient(90deg,var(--verde-fuerte),var(--verde));border-radius:3px}
h1.titulo{font-size:clamp(32px,4.5vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.1;margin-bottom:22px}
/* Píldoras glass */
.pildoras{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.pildora{
  font-size:14px;color:#dce8de;font-weight:500;
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);
  box-shadow:var(--glass-luz),0 4px 16px rgba(0,0,0,.25);
  border-radius:999px;padding:8px 18px;
}
/* Video */
.video-marco{
  border-radius:22px;overflow:hidden;aspect-ratio:16/9;margin-bottom:44px;position:relative;
  background:#000;border:1px solid var(--glass-borde);
  box-shadow:var(--glass-luz),0 12px 44px rgba(0,0,0,.5);
}
.video-marco video{width:100%;height:100%;display:block;background:#000}
.video-cargando{
  position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;gap:16px;
  align-items:center;justify-content:center;color:var(--texto-sec);font-size:15px;text-align:center;padding:20px;
  background:radial-gradient(ellipse at 70% 30%,rgba(74,222,128,.07),transparent 60%),#050705;
  transition:opacity .4s;
}
.video-cargando.oculto{opacity:0;pointer-events:none}
.video-cargando .error{color:#fca5a5;line-height:1.6}
.video-vacio{
  width:100%;height:100%;display:flex;flex-direction:column;gap:14px;
  align-items:center;justify-content:center;color:var(--texto-tenue);text-align:center;padding:30px;
  background:radial-gradient(ellipse at 70% 30%,rgba(74,222,128,.09),transparent 60%),#050705;
}
.video-vacio .play{
  width:66px;height:66px;border-radius:50%;
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(12px);box-shadow:var(--glass-luz);
  display:flex;align-items:center;justify-content:center;color:var(--verde);font-size:22px;
}
/* Cuerpo */
.cuerpo h2{font-size:24px;font-weight:700;margin:38px 0 14px;letter-spacing:-.01em}
.cuerpo h3{font-size:19px;font-weight:700;margin:28px 0 10px;color:var(--verde)}
.cuerpo p{color:#d4ddd5;font-size:16.5px;line-height:1.75;margin-bottom:14px}
.cuerpo ul,.cuerpo ol{margin:0 0 16px 22px;color:#d4ddd5;font-size:16.5px;line-height:1.75}
.cuerpo li{margin-bottom:8px}
.cuerpo strong{color:var(--texto)}
.cuerpo blockquote{
  border-left:4px solid var(--verde);border-radius:0 14px 14px 0;
  background:var(--glass-fondo);border-top:1px solid var(--glass-borde);
  border-right:1px solid var(--glass-borde);border-bottom:1px solid var(--glass-borde);
  backdrop-filter:blur(12px);padding:16px 20px;margin:18px 0;
  color:#e6eee7;font-size:16px;line-height:1.7;white-space:pre-line;
}
.aviso-vacio{
  background:var(--glass-fondo);border:1px dashed rgba(255,255,255,.16);
  backdrop-filter:blur(12px);border-radius:var(--radio);
  padding:40px 30px;text-align:center;color:var(--texto-sec);font-size:16px;line-height:1.7;
}
/* Tarjetas glass de sección */
.seccion{margin-top:44px}
.seccion-etiqueta{color:var(--verde);font-weight:800;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.tarjeta-glass{
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(20px) saturate(150%);-webkit-backdrop-filter:blur(20px) saturate(150%);
  box-shadow:var(--glass-luz),var(--glass-sombra);
  border-radius:var(--radio);padding:26px 28px;
}
.tarjeta-glass h3{color:var(--texto);font-size:19px;margin:0 0 10px}
.tarjeta-glass p,.tarjeta-glass li{color:#d4ddd5;font-size:16px;line-height:1.7}
.tarjeta-glass ul,.tarjeta-glass ol{margin:8px 0 0 20px}
.tarea{border-left:5px solid var(--verde)}
/* Quiz */
.quiz-pregunta{font-size:18px;font-weight:700;margin-bottom:16px}
.quiz-opciones{display:flex;flex-direction:column;gap:10px}
.quiz-op{
  text-align:left;font-family:inherit;font-size:15.5px;color:var(--texto);cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--glass-borde);
  backdrop-filter:blur(12px);border-radius:14px;padding:14px 18px;
  transition:all .15s;box-shadow:var(--glass-luz);
}
.quiz-op:hover:not(:disabled){background:rgba(255,255,255,.09);transform:translateX(3px)}
.quiz-op:disabled{cursor:default;opacity:.85}
.quiz-op.ok{background:rgba(74,222,128,.16);border-color:var(--verde);color:var(--verde);font-weight:700}
.quiz-op.mal{background:rgba(248,113,113,.12);border-color:rgba(248,113,113,.5);color:#fca5a5}
.quiz-progreso{color:var(--texto-tenue);font-size:13.5px;margin-bottom:14px}
.quiz-resultado{text-align:center;padding:10px}
.quiz-resultado .puntaje{font-size:44px;font-weight:800;color:var(--verde)}
/* Recursos */
.recurso{
  display:flex;gap:14px;align-items:center;text-decoration:none;color:var(--texto);
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(16px);box-shadow:var(--glass-luz);
  border-radius:14px;padding:16px 20px;margin-bottom:12px;transition:all .15s;
}
.recurso:hover{border-color:var(--verde-fuerte);transform:translateY(-1px)}
.recurso .r-icon{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;
  background:rgba(74,222,128,.12);border:1px solid rgba(74,222,128,.25);
  display:flex;align-items:center;justify-content:center;color:var(--verde);font-size:20px;
}
.recurso .r-nombre{font-weight:600;font-size:15.5px}
.recurso .r-nota{color:var(--texto-sec);font-size:13.5px;margin-top:2px}
/* Botones */
.acciones-clase{display:flex;flex-wrap:wrap;gap:14px;margin-top:44px}
.btn{
  display:inline-flex;align-items:center;gap:10px;border:none;cursor:pointer;
  font-family:inherit;font-weight:700;font-size:15.5px;border-radius:999px;padding:14px 28px;
  transition:transform .12s;text-decoration:none;
}
.btn:hover{transform:translateY(-1px)}
.btn-verde{background:linear-gradient(135deg,var(--verde),#6ee7a0);color:#06210f;box-shadow:0 6px 24px rgba(74,222,128,.35)}
.btn-linea{
  background:var(--glass-fondo);color:var(--texto);border:1px solid var(--glass-borde);
  backdrop-filter:blur(14px);box-shadow:var(--glass-luz);
}
.btn-linea.completada{background:rgba(74,222,128,.14);border-color:var(--verde-fuerte);color:var(--verde)}
.nav-clases{display:flex;justify-content:space-between;gap:14px;margin-top:26px;flex-wrap:wrap}
.nav-clases .btn{font-size:14.5px;padding:12px 22px;max-width:46%}
/* Inicio */
.hero{margin-bottom:44px}
.hero h1{font-size:clamp(34px,5vw,56px);font-weight:800;letter-spacing:-.02em;line-height:1.08;margin:14px 0 16px}
.hero p{color:var(--texto-sec);font-size:18px;line-height:1.7;max-width:640px}
.grid-modulos{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px}
.tarjeta-mod{
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(20px) saturate(150%);-webkit-backdrop-filter:blur(20px) saturate(150%);
  box-shadow:var(--glass-luz),var(--glass-sombra);
  border-radius:var(--radio);padding:26px;text-decoration:none;color:var(--texto);
  display:flex;flex-direction:column;gap:10px;transition:all .18s;
}
.tarjeta-mod:hover{border-color:rgba(74,222,128,.4);transform:translateY(-3px);box-shadow:var(--glass-luz),0 14px 40px rgba(0,0,0,.5),0 0 24px rgba(74,222,128,.12)}
.tarjeta-mod.bloqueada{cursor:default}
.tarjeta-mod.bloqueada:hover{transform:none;border-color:var(--glass-borde);box-shadow:var(--glass-luz),var(--glass-sombra)}
.tarjeta-mod.bloqueada .tm-borroso{filter:blur(7px);opacity:.55;user-select:none;pointer-events:none}
.tm-vidrio{
  position:absolute;inset:0;border-radius:var(--radio);z-index:2;
  background:linear-gradient(135deg,rgba(255,255,255,.12),rgba(255,255,255,.03) 55%,rgba(74,222,128,.06));
  backdrop-filter:blur(12px) saturate(170%);-webkit-backdrop-filter:blur(12px) saturate(170%);
  box-shadow:var(--glass-luz),inset 0 -18px 30px rgba(0,0,0,.18);
  display:flex;align-items:center;justify-content:center;
}
.tm-vidrio .badge-prox{margin-top:0;font-size:12px;letter-spacing:.12em;padding:9px 22px;box-shadow:0 6px 20px rgba(0,0,0,.35)}
.tm-bloqueo{display:flex;flex-direction:column;align-items:center;gap:14px}
.tm-candado{color:var(--verde);filter:drop-shadow(0 4px 14px rgba(74,222,128,.35))}
.tm-prox-texto{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--texto);text-shadow:0 2px 12px rgba(0,0,0,.5)}
.tm-num{color:var(--verde);font-weight:800;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.tm-nombre{font-size:21px;font-weight:700;letter-spacing:-.01em}
.tm-meta{color:var(--texto-sec);font-size:14px}
.tm-barra{height:6px;background:rgba(255,255,255,.08);border-radius:6px;overflow:hidden;margin-top:6px}
.tm-barra i{display:block;height:100%;background:linear-gradient(90deg,var(--verde-fuerte),var(--verde));border-radius:6px}
.tm-cta{margin-top:8px;color:var(--verde);font-weight:700;font-size:15px}
/* Carga / error */
.cargando{display:flex;flex-direction:column;gap:18px;align-items:center;justify-content:center;min-height:60vh;color:var(--texto-sec)}
.spinner{width:46px;height:46px;border-radius:50%;border:3px solid rgba(74,222,128,.2);border-top-color:var(--verde);animation:girar 1s linear infinite}
@keyframes girar{to{transform:rotate(360deg)}}
/* Modal abrir recurso */
#modal-recurso{
  position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
  padding:20px;background:rgba(0,0,0,.55);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:1;transition:opacity .2s;
}
#modal-recurso.modal-oculto{opacity:0;pointer-events:none}
.modal-vidrio{
  max-width:440px;width:100%;text-align:center;
  background:var(--glass-fondo);border:1px solid var(--glass-borde);
  backdrop-filter:blur(24px) saturate(160%);-webkit-backdrop-filter:blur(24px) saturate(160%);
  box-shadow:var(--glass-luz),var(--glass-sombra);
  border-radius:22px;padding:30px 28px;
  transform:translateY(8px);transition:transform .2s;
}
#modal-recurso:not(.modal-oculto) .modal-vidrio{transform:none}
.modal-titulo{font-size:20px;font-weight:800;margin-bottom:12px}
.modal-texto{color:var(--texto-sec);font-size:15px;line-height:1.65;margin-bottom:22px}
.modal-texto strong{color:var(--texto)}
.modal-acciones{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.modal-acciones .btn{font-size:14.5px;padding:12px 22px}

/* ===== Responsive ===== */
@media (max-width:1023px){
  #contenido{padding:44px 34px 70px}
  #sidebar{width:262px}
  #contenido{margin-left:262px}
}
@media (max-width:767px){
  #menu-btn{display:inline-flex}
  #sidebar{transform:translateX(-105%);transition:transform .25s ease;width:300px;border-right:1px solid var(--glass-borde)}
  body.menu-abierto #sidebar{transform:translateX(0)}
  body.menu-abierto #overlay{display:block}
  #contenido{margin-left:0;padding:84px 20px 70px}
  .nav-clases .btn{max-width:100%;width:100%;justify-content:center}
  .tarjeta-glass{padding:20px}
  .grid-modulos{grid-template-columns:1fr}
}

/* ===== Fluidez: blobs, cursor de vidrio, revelado ===== */
.blob{position:fixed;border-radius:50%;filter:blur(90px);z-index:0;pointer-events:none;opacity:.55}
.blob.b1{width:520px;height:520px;left:-140px;top:-120px;
  background:radial-gradient(circle,rgba(74,222,128,.16),transparent 70%);
  animation:deriva1 34s ease-in-out infinite alternate}
.blob.b2{width:460px;height:460px;right:-120px;top:32%;
  background:radial-gradient(circle,rgba(168,85,247,.13),transparent 70%);
  animation:deriva2 42s ease-in-out infinite alternate}
@keyframes deriva1{to{transform:translate(120px,80px) scale(1.15)}}
@keyframes deriva2{to{transform:translate(-100px,-70px) scale(1.1)}}
.ambiente{transition:transform .6s cubic-bezier(.22,.8,.3,1)}

/* Cursor bolita de vidrio (solo mouse) */
#cursor-glass{
  position:fixed;top:0;left:0;width:30px;height:30px;z-index:9999;pointer-events:none;
  border-radius:50%;display:none;
  background:radial-gradient(circle at 32% 30%,rgba(255,255,255,.55),rgba(255,255,255,.08) 45%,rgba(74,222,128,.14) 100%);
  border:1px solid rgba(255,255,255,.35);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  box-shadow:inset 0 1px 2px rgba(255,255,255,.5),0 4px 18px rgba(74,222,128,.28);
  transition:width .25s,height .25s;
}
#cursor-glass.grande{
  width:54px;height:54px;
  background:radial-gradient(circle at 32% 30%,rgba(255,255,255,.5),rgba(74,222,128,.20) 60%,rgba(74,222,128,.08));
}
#cursor-glow{
  position:fixed;top:0;left:0;width:190px;height:190px;z-index:2;pointer-events:none;
  border-radius:50%;display:none;filter:blur(12px);
  background:radial-gradient(circle,rgba(74,222,128,.10),transparent 65%);
}
@media (pointer:fine){
  body,a,button,.quiz-op,.clase-fila,.recurso,.tarjeta-mod{cursor:none}
  .video-marco video{cursor:auto}
  #cursor-glass,#cursor-glow{display:block}
}
/* Entrada de vista */
#contenido.vista-entra .contenedor{animation:entrada .5s cubic-bezier(.22,.8,.3,1)}
@keyframes entrada{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
/* Revelado al deslizar */
#contenido .fx{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.8,.3,1)}
#contenido .fx.visible{opacity:1;transform:none}
/* Brillo deslizante en tarjetas */
.tarjeta-mod{position:relative;overflow:hidden}
.tarjeta-mod::after{
  content:"";position:absolute;top:0;left:-80%;width:60%;height:100%;pointer-events:none;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.10),transparent);
  transform:skewX(-18deg);transition:left .8s ease;
}
.tarjeta-mod:hover::after{left:130%}
/* Deslizamiento suave en el menú */
.clase-fila{transition:background .2s,transform .2s,border-color .2s}
.clase-fila:hover{transform:translateX(4px)}
.pildora{transition:transform .2s,box-shadow .2s}
.pildora:hover{transform:translateY(-2px);box-shadow:var(--glass-luz),0 8px 22px rgba(0,0,0,.35),0 0 18px rgba(74,222,128,.15)}
@media (prefers-reduced-motion:reduce){
  .blob{animation:none}
  #cursor-glass,#cursor-glow{display:none}
  #contenido .fx{opacity:1;transform:none;transition:none}
  #contenido.vista-entra .contenedor{animation:none}
}

/* ---------- Login (pantalla de acceso glass) ---------- */
.pantalla-login{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;
  background:radial-gradient(900px 500px at 50% 18%,rgba(34,197,94,.14),transparent 60%),rgba(4,8,6,.72);
  backdrop-filter:blur(10px) saturate(140%);-webkit-backdrop-filter:blur(10px) saturate(140%)}
.pantalla-login.oculto{display:none}
.login-vidrio{width:min(420px,100%);max-height:92vh;overflow:auto;padding:36px 32px 30px;border-radius:24px;text-align:center;
  background:linear-gradient(150deg,rgba(255,255,255,.10),rgba(255,255,255,.03) 45%,rgba(34,197,94,.06));
  border:1px solid rgba(74,222,128,.28);
  box-shadow:0 24px 80px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.22);
  backdrop-filter:blur(26px) saturate(170%);-webkit-backdrop-filter:blur(26px) saturate(170%);
  animation:login-entra .45s cubic-bezier(.2,.9,.3,1.2)}
@keyframes login-entra{from{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}
.login-logo{width:64px;height:64px;border-radius:50%;box-shadow:0 0 30px rgba(74,222,128,.45)}
.login-titulo{font-size:24px;font-weight:800;color:var(--texto);margin:14px 0 4px;letter-spacing:-.02em}
.login-sub{font-size:14px;color:var(--texto-suave);margin:0 0 22px}
.login-tabs{display:flex;background:rgba(255,255,255,.06);border:1px solid var(--borde);border-radius:14px;padding:4px;margin-bottom:18px}
.login-tab{flex:1;border:0;background:transparent;color:var(--texto-suave);font:600 14px Inter,system-ui,sans-serif;padding:10px;border-radius:10px;cursor:pointer;transition:.2s}
.login-tab.activa{background:linear-gradient(135deg,rgba(34,197,94,.35),rgba(34,197,94,.15));color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.2)}
.login-input{width:100%;box-sizing:border-box;margin-bottom:12px;padding:13px 15px;border-radius:14px;font:500 15px Inter,system-ui,sans-serif;
  color:var(--texto);background:rgba(255,255,255,.06);border:1px solid var(--borde);outline:none;transition:.2s}
.login-input::placeholder{color:var(--texto-suave)}
.login-input:focus{border-color:var(--verde);box-shadow:0 0 0 3px rgba(74,222,128,.18);background:rgba(255,255,255,.09)}
.login-error{font-size:13.5px;color:#fca5a5;background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);
  border-radius:12px;padding:10px 12px;margin-bottom:12px;text-align:left}
.login-error.oculto{display:none}
.login-btn{width:100%;justify-content:center;margin-top:4px}
.login-btn:disabled{opacity:.6;cursor:wait}
#btn-google{display:inline-flex;align-items:center;gap:10px;margin-top:0}
.login-divisor{display:flex;align-items:center;gap:12px;margin:16px 0;color:var(--texto-suave);font-size:13px}
.login-divisor::before,.login-divisor::after{content:"";flex:1;height:1px;background:var(--borde)}
.btn-salir{margin-top:10px;background:none;border:1px solid var(--borde);color:var(--texto-suave);font:600 12.5px Inter,system-ui,sans-serif;
  padding:7px 14px;border-radius:10px;cursor:pointer;transition:.2s}
.btn-salir:hover{color:#fca5a5;border-color:rgba(239,68,68,.4)}

/* ---------- Ojito ver/ocultar contraseña ---------- */
.login-pass-wrap{position:relative;margin-bottom:12px}
.login-pass-wrap .login-input{margin-bottom:0;padding-right:46px}
.toggle-pass{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:0;color:var(--texto-suave);
  padding:8px;border-radius:10px;cursor:pointer;display:flex;align-items:center;transition:.2s}
.toggle-pass:hover{color:var(--verde)}
.toggle-pass.ver{color:var(--verde)}

/* ---------- Desbloqueo secuencial ---------- */
.clase-fila.bloqueada{opacity:.45;cursor:not-allowed}
.btn-bloqueado{opacity:.55;cursor:not-allowed}
.aviso-bloqueada{max-width:520px;margin:60px auto;text-align:center;padding:44px 32px;border-radius:24px;
  background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid var(--borde);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.ab-candado{font-size:44px;margin-bottom:12px}
.ab-titulo{font-size:22px;font-weight:800;color:var(--texto);margin-bottom:10px}
.aviso-bloqueada p{color:var(--texto-suave);font-size:15px;margin:0 0 22px}
.aviso-bloqueada p strong{color:var(--texto)}

/* ---------- Panel de administrador ---------- */
.admin-cab{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:24px}
.kpi{background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.03));border:1px solid var(--borde);
  border-radius:18px;padding:18px;text-align:center;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.kpi-num{font:800 30px Manrope,Inter,sans-serif;color:var(--verde)}
.kpi-et{font-size:13px;color:var(--texto-suave);margin-top:4px}
.tabla-admin-wrap{overflow-x:auto;border:1px solid var(--borde);border-radius:18px;background:rgba(255,255,255,.03)}
.tabla-admin{width:100%;border-collapse:collapse;font-size:13.5px;min-width:860px}
.tabla-admin th{text-align:left;padding:12px 14px;color:var(--texto-suave);font-weight:700;font-size:12px;
  text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--borde);white-space:nowrap}
.tabla-admin td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.05);vertical-align:middle}
.fila-u{cursor:pointer;transition:background .15s}
.fila-u:hover{background:rgba(74,222,128,.06)}
.c-email{font-weight:600;color:var(--texto);word-break:break-all}
.mini-barra{height:7px;background:rgba(255,255,255,.08);border-radius:99px;overflow:hidden;margin-bottom:5px;min-width:90px}
.mini-barra i{display:block;height:100%;background:linear-gradient(90deg,var(--verde),#22c55e);border-radius:99px}
.mini-num{font-size:12.5px;color:var(--texto-suave)}
.detalle-clases{display:flex;flex-wrap:wrap;gap:8px;padding:6px 2px}
.dc{font-size:12px;padding:5px 10px;border-radius:99px;background:rgba(255,255,255,.05);color:var(--texto-suave);border:1px solid var(--borde)}
.dc.empezada{color:#fcd34d;border-color:rgba(252,211,77,.35)}
.dc.hecha{color:var(--verde);border-color:rgba(74,222,128,.4);background:rgba(74,222,128,.08)}
.admin-nota{font-size:13px;color:var(--texto-suave);margin-top:14px}
.admin-sub{font-size:17px;font-weight:800;margin:28px 0 12px;color:var(--texto)}
.tendencia{display:flex;align-items:flex-end;gap:10px;padding:18px 16px 12px;border:1px solid var(--borde);
  border-radius:18px;background:rgba(255,255,255,.03);overflow-x:auto}
.tbar{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:46px;flex:1}
.tbar i{width:26px;border-radius:6px 6px 2px 2px;background:linear-gradient(180deg,var(--verde),rgba(34,197,94,.35));display:block}
.tbar span{font-size:12px;font-weight:800;color:var(--verde)}
.tbar em{font-size:10.5px;color:var(--texto-suave);font-style:normal;white-space:nowrap}
.rep-lista{display:grid;gap:10px}
.rep-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--borde);
  border-radius:14px;background:rgba(255,255,255,.03);font-size:13.5px}
.rep-mod{font-weight:800;color:var(--verde);white-space:nowrap}
.rep-tit{flex:1;min-width:0}
.rep-n{color:var(--texto-suave);font-size:12.5px;white-space:nowrap}
.est{display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}
.est-ok{background:rgba(74,222,128,.14);color:var(--verde)}
.est-curso{background:rgba(96,165,250,.14);color:#93c5fd}
.est-riesgo{background:rgba(248,113,113,.14);color:#fca5a5}
.est-gris{background:rgba(255,255,255,.07);color:var(--texto-suave)}

/* ---------- Protección de video: marca de agua ---------- */
.video-marco{position:relative}
.marca-agua{position:absolute;z-index:5;pointer-events:none;font-size:12px;font-weight:600;letter-spacing:.02em;
  color:rgba(255,255,255,.42);text-shadow:0 1px 6px rgba(0,0,0,.7);background:rgba(0,0,0,.22);
  padding:4px 10px;border-radius:8px;backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
  transition:all .6s ease;white-space:nowrap;max-width:90%;overflow:hidden;text-overflow:ellipsis}
.marca-agua.abajo-derecha{right:14px;bottom:52px}
.marca-agua.abajo-izquierda{left:14px;bottom:52px}
.marca-agua.arriba-derecha{right:14px;top:14px}
.marca-agua.arriba-izquierda{left:14px;top:14px}

/* ---------- Pestaña Enlaces ---------- */
.enlace-nav{margin-bottom:10px;border:1px solid rgba(74,222,128,.25);background:rgba(74,222,128,.06)}
.enlace-nav .clase-tit{color:var(--texto);font-weight:600}
.enl-codigo-box label,.enl-form label{display:block;font-size:14px;font-weight:600;color:var(--texto);margin:12px 0 6px}
.enl-codigo-box .login-input,.enl-form .login-input{margin-top:6px}
.enl-ayuda{font-size:13px;color:var(--texto-sec);margin-top:8px;line-height:1.5}
.enl-tarjeta{margin-top:16px}
.enl-prod{font-size:19px;font-weight:800;color:var(--texto)}
.enl-desc{font-size:14px;color:var(--texto-sec);margin:4px 0 12px}
.enl-link{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13.5px;color:var(--verde);
  background:rgba(0,0,0,.35);border:1px solid rgba(74,222,128,.25);border-radius:12px;
  padding:12px 14px;word-break:break-all;line-height:1.5}
.enl-acciones{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.enl-nota{margin-top:18px;font-size:14px;color:var(--texto-sec);line-height:1.6;
  border-left:3px solid var(--verde-fuerte);padding-left:14px}
.enl-item{margin-top:12px}
.enl-item .recurso{margin-bottom:0}
.enl-admin-acciones{display:flex;gap:8px;margin:8px 2px 4px}
.btn-mini{padding:7px 14px;font-size:13px}
.btn-peligro{border-color:rgba(248,113,113,.4)!important;color:#fca5a5!important}
.btn-peligro:hover{background:rgba(248,113,113,.1)!important}
.enl-form{margin-top:14px}
.enl-form-tit{font-size:17px;font-weight:800;color:var(--texto);margin-bottom:4px}
.enl-check{display:flex!important;align-items:flex-start;gap:10px;font-weight:500!important;
  font-size:13.5px!important;color:var(--texto-sec)!important;cursor:pointer}
.enl-check input{width:18px;height:18px;margin-top:2px;accent-color:var(--verde-fuerte);flex-shrink:0}
#enl-agregar{margin:4px 0 6px}
.enl-mio{margin-top:12px;padding:16px;border:1px solid var(--borde);border-radius:16px;background:rgba(255,255,255,.03)}
.enl-mio-tit{font-weight:700;font-size:15.5px;color:var(--texto)}
.enl-link-mini{font-size:12.5px;padding:9px 12px;margin-top:10px}

/* ===== Módulo especial M3+M4 (vista previa del diseño, solo admin) ===== */
.mod-especial{
  border:1px solid rgba(74,222,128,.32);
  border-radius:16px;
  padding:8px 8px 14px;
  margin-bottom:20px;
  background:linear-gradient(135deg,rgba(74,222,128,.08),rgba(255,255,255,.02));
  box-shadow:var(--glass-luz),0 8px 32px rgba(0,0,0,.38),0 0 28px rgba(74,222,128,.08);
}
.mod-cab-especial{
  border-radius:12px;
  padding:10px 12px;
  background:linear-gradient(135deg,rgba(74,222,128,.16),rgba(255,255,255,.04));
  border:1px solid rgba(74,222,128,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.mod-cab-especial:hover{background:linear-gradient(135deg,rgba(74,222,128,.22),rgba(255,255,255,.06))}
.mod-num-especial{color:var(--verde);font-size:11.5px;font-weight:800;letter-spacing:.5px;text-transform:uppercase}
.mod-sub-especial{color:var(--texto-sec);font-size:12px;margin-top:3px}
.mod-sub{margin:10px 2px 4px;padding:2px 0 8px 10px;border-left:2px solid rgba(74,222,128,.3)}
.mod-comp-titulo{color:var(--texto-sec);font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin:12px 12px 4px}
.mod-especial.plegado .mod-sub,.mod-especial.plegado .mod-comp-titulo{display:none}
.pildora-mini{font-size:10px;font-weight:700;color:var(--verde);border:1px solid rgba(74,222,128,.4);border-radius:20px;padding:2px 8px;margin-left:auto;white-space:nowrap;flex-shrink:0}
.tarjeta-mod-especial{
  border:1px solid rgba(74,222,128,.4);
  background:linear-gradient(135deg,rgba(74,222,128,.1),rgba(255,255,255,.02));
  box-shadow:var(--glass-luz),0 8px 32px rgba(0,0,0,.38),0 0 28px rgba(74,222,128,.1);
  cursor:default;
}
.tarjeta-mod-especial:hover{transform:translateY(-3px)}