:root{
  --negro:#0e0d0c; --negro2:#171513; --card:#1e1b18; --card2:#26221e; --borde:#332d27;
  --texto:#f3ece2; --suave:#b5a898; --oro:#f2b33d; --oro-osc:#c88a17; --rojo:#c0392b;
  --radio:14px; --max:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Libre Franklin",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--texto);background:var(--negro);line-height:1.7;font-size:17px}
svg{max-width:100%;display:block}
a{color:var(--oro)}
h1,h2{font-family:"Bebas Neue",Impact,sans-serif;font-weight:400;letter-spacing:.02em;line-height:1;color:#fff}
h1{font-size:clamp(3rem,8vw,5.6rem)}
h2{font-size:clamp(2.2rem,5vw,3.4rem);margin-bottom:.6rem}
h3{font-size:1.1rem;font-weight:700;margin-bottom:.35rem;color:#fff}
p+p{margin-top:.8rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.eyebrow{display:inline-block;font-size:.76rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--oro);margin-bottom:12px}
.intro{max-width:700px;color:var(--suave);margin-bottom:34px}
section[id]{scroll-margin-top:72px}

.aviso-top{background:var(--oro);color:#1a1307;text-align:center;font-size:.85rem;font-weight:600;padding:8px 16px}

header.site{position:sticky;top:0;z-index:20;background:rgba(14,13,12,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--borde)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-family:"Bebas Neue",Impact,"Arial Narrow",sans-serif;font-size:1.7rem;letter-spacing:.04em}
.logo svg{width:34px;height:34px}
nav.menu{display:flex;gap:4px}
nav.menu a{text-decoration:none;color:var(--suave);font-weight:600;font-size:.9rem;padding:6px 12px;border-radius:999px;transition:all .2s}
nav.menu a:hover,nav.menu a.activo{color:var(--negro);background:var(--oro)}
.progreso{position:absolute;left:0;bottom:-1px;height:3px;width:0;background:linear-gradient(90deg,var(--rojo),var(--oro))}

/* HERO */
.hero{position:relative;overflow:hidden;padding:90px 0 110px;text-align:center;background:radial-gradient(ellipse at 50% -10%,#3a2a12 0%,var(--negro) 65%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");animation:grano .5s steps(2) infinite}
@keyframes grano{50%{transform:translate(-8px,6px)}}
.foco{position:absolute;top:-30%;left:50%;width:900px;height:900px;transform:translateX(-50%);background:radial-gradient(circle,rgba(242,179,61,.18) 0%,transparent 60%);animation:parpadeo 4s ease-in-out infinite}
@keyframes parpadeo{0%,100%{opacity:1}45%{opacity:.85}50%{opacity:.6}55%{opacity:.9}}
.hero .wrap{position:relative;z-index:2}
.hero h1 span{color:var(--oro)}
.hero p.lead{color:var(--suave);font-size:1.15rem;max-width:640px;margin:22px auto 32px}
.claqueta{width:96px;margin:0 auto 22px}
.claqueta .tapa{transform-origin:8px 30px;animation:claqueta 3.2s ease-in-out infinite}
@keyframes claqueta{0%,70%,100%{transform:rotate(0)}78%{transform:rotate(-24deg)}86%{transform:rotate(0)}}
.btn{display:inline-block;background:var(--oro);color:#1a1307;text-decoration:none;font-weight:700;padding:14px 28px;border-radius:999px;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(242,179,61,.3)}
.btn.sec{background:transparent;color:#fff;border:2px solid var(--borde);margin-left:8px}

/* Cinta de película */
.cinta{background:#000;border-top:1px solid var(--borde);border-bottom:1px solid var(--borde);overflow:hidden;padding:10px 0}
.cinta-track{display:flex;gap:10px;width:max-content;animation:cinta 40s linear infinite}
.cinta:hover .cinta-track{animation-play-state:paused}
@keyframes cinta{to{transform:translateX(-50%)}}
.cuadro{position:relative;width:200px;height:120px;background:var(--card);border-radius:4px;display:flex;flex-direction:column;justify-content:flex-end;padding:12px 14px;border-top:8px dashed #000;border-bottom:8px dashed #000;outline:3px solid #2a2520}
.cuadro b{font-family:"Bebas Neue",Impact,"Arial Narrow",sans-serif;font-size:1.7rem;color:var(--oro);font-weight:400;line-height:1}
.cuadro span{font-size:.8rem;color:var(--suave);line-height:1.3}

section.bloque{padding:88px 0}
section.alt{background:var(--negro2);border-top:1px solid var(--borde);border-bottom:1px solid var(--borde)}

/* Línea de tiempo */
.epocas{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.epoca{border:1px solid var(--borde);background:var(--card);color:var(--suave);font:600 .9rem "Libre Franklin",system-ui,sans-serif;padding:10px 16px;border-radius:999px;cursor:pointer;transition:all .2s}
.epoca[aria-selected="true"]{background:var(--oro);color:#1a1307;border-color:var(--oro)}
.riel{position:relative;height:6px;background:var(--borde);border-radius:999px;margin:0 0 30px}
.riel span{position:absolute;left:0;top:0;height:100%;background:linear-gradient(90deg,var(--rojo),var(--oro));border-radius:999px;transition:width .5s ease}
.periodo{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;background:var(--card);border:1px solid var(--borde);border-radius:var(--radio);padding:30px;animation:entra .45s ease}
.periodo[hidden]{display:none}
.periodo .anios{font-family:"Bebas Neue",Impact,"Arial Narrow",sans-serif;font-size:3.2rem;color:var(--oro);line-height:1}
.periodo .titulo{font-size:1.3rem;font-weight:700;margin-top:6px;color:#fff}
.periodo p{color:var(--suave)}
.hitos{list-style:none;margin-top:14px}
.hitos li{position:relative;padding-left:22px;margin-top:10px;color:var(--suave)}
.hitos li::before{content:"";position:absolute;left:0;top:10px;width:9px;height:9px;border-radius:50%;background:var(--oro)}
.hitos strong{color:var(--texto)}
@keyframes entra{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* Visor de planos */
.visor{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.pantalla{background:#000;border:10px solid #1c1916;border-radius:10px;aspect-ratio:16/9;overflow:hidden;position:relative;box-shadow:0 20px 50px rgba(0,0,0,.5)}
.pantalla svg{width:100%;height:100%;transition:transform .9s cubic-bezier(.4,.1,.2,1)}
.pantalla .rec{position:absolute;top:10px;left:12px;font:700 .75rem "Libre Franklin",system-ui,sans-serif,system-ui,sans-serif;color:#fff;display:flex;gap:6px;align-items:center;letter-spacing:.1em}
.pantalla .rec i{width:9px;height:9px;border-radius:50%;background:var(--rojo);animation:parpadeo 1.2s infinite}
.pantalla .etiqueta{position:absolute;bottom:10px;right:12px;background:rgba(0,0,0,.6);color:var(--oro);font-family:"Bebas Neue",Impact,"Arial Narrow",sans-serif;font-size:1.2rem;padding:2px 10px;border-radius:4px;letter-spacing:.05em}
.botones-plano{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:18px 0}
.botones-plano button{border:1px solid var(--borde);background:var(--card);color:var(--texto);padding:12px;border-radius:10px;font:600 .92rem "Libre Franklin",system-ui,sans-serif;cursor:pointer;transition:all .2s;text-align:left}
.botones-plano button[aria-pressed="true"]{border-color:var(--oro);background:#2b2214;color:var(--oro)}
.desc-plano{background:var(--card);border-left:3px solid var(--oro);border-radius:10px;padding:16px 18px;color:var(--suave);min-height:96px}

/* Tarjetas que giran */
.giros{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.giro{perspective:1000px;height:230px;cursor:pointer;background:none;border:0;text-align:left;font:inherit;color:inherit;padding:0}
.giro .in{position:relative;width:100%;height:100%;transition:transform .7s;transform-style:preserve-3d}
.giro.volteada .in{transform:rotateY(180deg)}
.giro .cara{position:absolute;inset:0;backface-visibility:hidden;border-radius:var(--radio);padding:24px;display:flex;flex-direction:column;border:1px solid var(--borde)}
.giro .frente{background:var(--card);justify-content:space-between}
.giro .frente .num{font-family:"Bebas Neue",Impact,"Arial Narrow",sans-serif;font-size:3rem;color:var(--oro);line-height:1}
.giro .frente small{color:var(--suave);font-size:.82rem}
.giro .dorso{background:#2b2214;transform:rotateY(180deg);color:var(--texto);font-size:.95rem;justify-content:center}
.giro .dorso strong{color:var(--oro)}

/* Guía */
.guia .tabs{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}
.tab{border:1px solid var(--borde);background:var(--card);color:var(--suave);font:600 .92rem "Libre Franklin",system-ui,sans-serif;padding:10px 18px;border-radius:999px;cursor:pointer}
.tab[aria-selected="true"]{background:var(--texto);color:var(--negro);border-color:var(--texto)}
.check-list{list-style:none;display:grid;gap:10px}
.check-list label{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--borde);border-radius:12px;padding:16px 18px;cursor:pointer;transition:border-color .2s}
.check-list input{appearance:none;flex:0 0 22px;height:22px;border:2px solid var(--borde);border-radius:6px;margin-top:2px;cursor:pointer;display:grid;place-items:center;transition:all .2s}
.check-list input:checked{background:var(--oro);border-color:var(--oro)}
.check-list input:checked::after{content:"✓";color:#1a1307;font-weight:800;font-size:.8rem}
.check-list label:has(input:checked){border-color:var(--oro-osc)}
.check-list span{color:var(--suave)}
.check-list strong{color:var(--texto)}
.contador-guia{margin-top:14px;color:var(--suave);font-size:.92rem}
.contador-guia b{color:var(--oro)}

/* Películas */
.pelis{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.peli{background:var(--card);border:1px solid var(--borde);border-radius:var(--radio);overflow:hidden;transition:transform .3s,border-color .3s}
.peli:hover{transform:translateY(-5px);border-color:var(--oro-osc)}
.peli .afiche{height:120px;display:flex;align-items:flex-end;padding:14px 18px;font-family:"Bebas Neue",Impact,"Arial Narrow",sans-serif;font-size:2.6rem;color:rgba(255,255,255,.92);line-height:.9}
.peli .cuerpo{padding:18px 20px 22px}
.peli .meta{font-size:.8rem;color:var(--oro);font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.peli h3{margin-top:4px}
.peli p{color:var(--suave);font-size:.94rem}
.nota-pie{font-size:.8rem;color:var(--suave);margin-top:16px;font-style:italic}

/* Dónde ver */
.donde{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.lugar{background:var(--card);border:1px solid var(--borde);border-radius:var(--radio);padding:22px}
.lugar p{color:var(--suave);font-size:.94rem}
.lugar a{display:inline-block;margin-top:10px;font-weight:600;font-size:.9rem;text-decoration:none}
.lugar a:hover{text-decoration:underline}

/* Quiz */
.quiz{max-width:760px;margin:0 auto}
.pregunta{background:var(--card);border:1px solid var(--borde);border-radius:var(--radio);padding:22px 24px;margin-bottom:14px}
.pregunta h3{font-size:1.02rem;font-weight:600}
.opciones{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.opciones button{border:1px solid var(--borde);background:var(--card2);padding:9px 18px;border-radius:999px;font:600 .9rem "Libre Franklin",system-ui,sans-serif;cursor:pointer;color:var(--texto)}
.opciones button:disabled{cursor:default}
.opciones button.bien{background:#16351f;border-color:#3fa45f;color:#7fdc98}
.opciones button.malo{background:#3a1714;border-color:var(--rojo);color:#f09a8f}
.explica{margin-top:12px;color:var(--suave);font-size:.95rem;display:none}
.explica.ver{display:block;animation:entra .4s ease}
.marcador{text-align:center;font-family:"Bebas Neue",Impact,"Arial Narrow",sans-serif;font-size:1.6rem;color:var(--oro);margin-top:18px;letter-spacing:.04em}

.nota-final{background:var(--card);border:1px solid var(--borde);border-left:5px solid var(--oro);border-radius:var(--radio);padding:26px}
.nota-final p{color:var(--suave)}
.nota-final strong{color:var(--texto)}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:none}

.subir{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;background:var(--oro);color:#1a1307;border:0;cursor:pointer;display:grid;place-items:center;opacity:0;pointer-events:none;transition:opacity .3s;z-index:30}
.subir.ver{opacity:1;pointer-events:auto}

footer.site{background:#080807;color:var(--suave);padding:48px 0 24px;font-size:.93rem;border-top:1px solid var(--borde)}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
footer.site h4{color:#fff;margin-bottom:10px;font-size:1rem}
footer.site a{color:var(--suave)}
footer.site a:hover{color:var(--oro)}
footer.site ul{list-style:none}
footer.site li+li{margin-top:6px}
.legal-bar{border-top:1px solid var(--borde);margin-top:28px;padding-top:16px;font-size:.82rem;color:#8a7e70}

.legal{max-width:820px;margin:0 auto;padding:48px 20px 64px}
.legal h1{font-size:3rem;margin-bottom:6px}
.legal .fecha{color:var(--suave);font-size:.9rem;margin-bottom:28px}
.legal h2{font-family:"Libre Franklin",system-ui,sans-serif;font-size:1.15rem;font-weight:700;letter-spacing:0;line-height:1.3;margin:28px 0 8px;color:var(--oro)}
.legal p,.legal li{color:#d6ccbf}
.legal ul{padding-left:22px;margin-top:8px}
.legal li+li{margin-top:4px}
.datos{background:var(--card);border:1px solid var(--borde);border-radius:var(--radio);padding:18px 20px;margin-top:10px}

@media (max-width:900px){
  .periodo,.visor,.giros,.pelis,.donde,footer.site .cols{grid-template-columns:1fr}
  nav.menu{display:none}
  .hero{padding:60px 0 80px}
  section.bloque{padding:62px 0}
  .btn.sec{margin:10px 0 0}
  .giro{height:200px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}