/* =========================================================================
   STYLES.css — todo el diseño visual de AST Skills (colores, tipografía,
   layout, animaciones). No hay datos comerciales ni lógica en este
   archivo — solo estilos.
   ========================================================================= */

  :root{
    --bg:#151515; --panel:#1d1d1d;
    --gold:#e8d12a; --gold-dim:#c7b224;
    --ink:#e5e5e5; --muted:#9a9a9a; --promo:#C4443A;
    --border:#2c2c2c;
    color-scheme:dark;
    box-sizing:border-box;
    padding-top:env(safe-area-inset-top,0px);
    padding-bottom:env(safe-area-inset-bottom,0px);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:78px;}
  body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased;}
  h1,h2,h3{font-family:'Barlow Condensed',sans-serif;font-weight:800;text-transform:uppercase;letter-spacing:0.3px;margin:0;}
  p{margin:0;}
  a{color:inherit;}
  ul{margin:0;padding:0;}
  .container{max-width:1180px;margin:0 auto;padding:0 24px;}

  /* NAV */
  header.nav{
    position:sticky;top:0;z-index:50;
    padding-top:env(safe-area-inset-top,0px);
    background:rgba(21,21,21,0.85);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
  }
  .nav-inner{max-width:1180px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .logo{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;letter-spacing:1px;text-decoration:none;text-transform:uppercase;flex-shrink:0;}
  .logo span{color:var(--gold);}
  nav.links{display:flex;gap:28px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
  nav.links::-webkit-scrollbar{display:none;}
  nav.links a{font-size:14px;font-weight:600;letter-spacing:0.5px;text-decoration:none;color:var(--muted);transition:color .15s;white-space:nowrap;padding:10px 2px;}
  nav.links a:hover{color:var(--ink);}

  /* HERO */
  .hero{
    position:relative;min-height:88vh;display:flex;align-items:flex-end;
    background:
      radial-gradient(ellipse 70% 60% at 75% 20%, rgba(232,209,42,0.10), transparent 60%),
      repeating-linear-gradient(100deg, #1a1a1a 0 2px, #151515 2px 90px),
      #151515;
    overflow:hidden;
  }
  .hero::before{
    content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(0deg, #151515 0%, rgba(21,21,21,0.35) 45%, rgba(21,21,21,0.05) 100%);
  }
  .hero-media{position:absolute;inset:0;z-index:0;display:flex;align-items:center;justify-content:center;}
  .hero-media img, .hero-media video{width:100%;height:100%;object-fit:cover;}
  .hero-media span{font-size:11px;letter-spacing:1px;color:var(--muted);border:1px dashed #4a4a4a;padding:5px 10px;border-radius:4px;}
  .hero-content{position:relative;z-index:2;padding:64px 0 72px;width:100%;}
  .hero h1{font-size:clamp(38px,7vw,84px);line-height:0.93;max-width:14ch;animation:heroIn .7s cubic-bezier(.16,.84,.44,1) both;}
  .hero .lead{margin-top:22px;font-size:17px;line-height:1.6;color:var(--ink);max-width:52ch;opacity:0.9;animation:heroIn .7s cubic-bezier(.16,.84,.44,1) .12s both;}
  .hero .cta{
    display:inline-block;margin-top:32px;background:var(--gold);color:#151515;
    font-weight:700;font-size:15px;padding:15px 30px;border-radius:4px;text-decoration:none;
    transition:background .15s;
    animation:heroIn .7s cubic-bezier(.16,.84,.44,1) .22s both;
  }
  .hero .cta:hover{background:var(--gold-dim);}
  @keyframes heroIn{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}

  /* QUÉ ES AST SKILLS */
  .about{padding:64px 0;border-bottom:1px solid var(--border);}
  .about-inner{max-width:900px;}
  .about h2{font-size:clamp(26px,4vw,40px);line-height:1.05;max-width:18ch;}
  .about p{margin-top:18px;font-size:16px;line-height:1.65;color:var(--muted);max-width:65ch;}

  /* SERVICIOS (home grid) */
  #servicios{padding:88px 0 96px;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px;flex-wrap:wrap;}
  .section-head h2{font-size:clamp(30px,4.5vw,46px);}
  .section-head p{color:var(--muted);font-size:15px;max-width:44ch;}

  .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;}

  .card{
    background:var(--panel);border:1px solid var(--border);border-radius:10px;
    overflow:hidden;display:flex;flex-direction:column;
    transition:border-color .25s ease, transform .25s ease;
  }
  .card:hover{border-color:#454029;transform:translateY(-3px);}
  .card-media, .media-placeholder{
    position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#1f1f1f,#262626);
    display:flex;align-items:center;justify-content:center;border-radius:8px;overflow:hidden;
  }
  .card-media span, .media-placeholder span{font-size:10.5px;letter-spacing:0.8px;color:var(--muted);border:1px dashed #454545;padding:4px 8px;border-radius:4px;}
  .card-media.has-media, .media-placeholder.has-media{background:#000;}
  .card-media video, .card-media img, .media-placeholder video, .media-placeholder img{
    width:100%;height:100%;object-fit:cover;display:block;
    transition:transform .5s cubic-bezier(.16,.84,.44,1);
  }
  .card:hover .card-media img, .card:hover .card-media video,
  .instalacion-item:hover .media-placeholder img, .instalacion-item:hover .media-placeholder video{
    transform:scale(1.045);
  }
  .card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-tag, .tag-inline{font-size:11.5px;font-weight:700;color:var(--gold);letter-spacing:0.5px;text-transform:uppercase;}
  .card h3{font-size:24px;line-height:1;}
  .card .desc{font-size:14px;line-height:1.55;color:var(--muted);flex:1;}
  .card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:6px;padding-top:16px;border-top:1px solid var(--border);}
  .price-block .from{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:0.5px;}
  .price-block .amount{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px;color:var(--ink);}
  .price-block .unit{font-size:12px;color:var(--muted);}
  .card-link{font-size:13px;font-weight:700;color:var(--gold);text-decoration:none;border-bottom:1px solid transparent;display:inline-block;padding:12px 4px;margin:-12px -4px;}
  .card-link:hover{border-bottom-color:var(--gold);}

  .promo-strip{background:var(--promo);color:#fff;font-size:13px;font-weight:600;padding:10px 16px;border-radius:6px;margin-bottom:14px;display:inline-block;}

  /* INSTALACIONES */
  #instalaciones{padding:0 0 96px;}
  .instalaciones-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;}
  .instalacion-item .media-placeholder{aspect-ratio:4/3;}
  .instalacion-label{margin-top:10px;font-size:14px;font-weight:600;color:var(--ink);}
  .ribbon-promo{position:absolute;top:10px;left:10px;background:var(--promo);color:#fff;font-size:10.5px;font-weight:700;letter-spacing:0.5px;text-transform:uppercase;padding:4px 9px;border-radius:4px;z-index:2;}

  /* DETALLE DE SERVICIO */
  #view-detalle{padding:48px 0 100px;}
  .back-link{display:inline-block;font-size:13px;color:var(--muted);text-decoration:none;margin-bottom:28px;}
  .back-link:hover{color:var(--ink);}
  .detalle-head{margin-bottom:28px;}
  .detalle-head h1{font-size:clamp(34px,6vw,58px);margin-top:8px;}
  .subtitulo{color:var(--muted);font-size:16px;margin-top:10px;}
  .detalle-media{margin-bottom:16px;}
  .detalle-media .media-placeholder{aspect-ratio:16/7;}
  .galeria-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:8px;}
  .galeria-grid .media-placeholder{aspect-ratio:1/1;}
  .detalle-section{margin-top:44px;padding-top:32px;border-top:1px solid var(--border);}
  .detalle-section h2{font-size:22px;margin-bottom:16px;}
  .detalle-section p{font-size:15px;line-height:1.65;color:var(--ink);max-width:68ch;}
  .muted-text{color:var(--muted) !important;}
  .incluye-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;}
  .incluye-list li{font-size:14px;padding-left:20px;position:relative;color:var(--ink);}
  .incluye-list li::before{content:"";position:absolute;left:0;top:7px;width:8px;height:8px;background:var(--gold);border-radius:1px;}

  .precios-ledger{border-top:1px solid var(--border);}
  .precio-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 4px;border-bottom:1px solid var(--border);}
  .precio-row.featured{background:var(--gold);color:#151515;border-radius:8px;padding:16px 18px;border-bottom:none;margin:6px 0;}
  .precio-row.featured .precio-detalle{color:#4a4013;}
  .precio-row.featured .tag-inline{color:#151515;background:#151515;color:var(--gold);display:inline-block;padding:2px 7px;border-radius:3px;margin-bottom:4px;}
  .precio-row .precio-info{max-width:60ch;}
  .precio-nombre{font-weight:600;font-size:15px;}
  .precio-detalle{font-size:13px;color:var(--muted);margin-top:2px;}
  .precio-descripcion{font-size:13px;color:var(--ink);margin-top:8px;line-height:1.5;}
  .precio-mini-list{list-style:none;margin-top:8px;display:flex;flex-direction:column;gap:4px;}
  .precio-mini-list li{font-size:13px;padding-left:16px;position:relative;color:var(--ink);}
  .precio-mini-list li::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;background:var(--gold);border-radius:1px;}
  .precio-row.featured .precio-mini-list li::before{background:#151515;}
  .precio-mini-list.beneficios li::before{background:var(--promo);}
  .precio-condiciones{font-size:12px;color:var(--muted);margin-top:8px;font-style:italic;}
  .tag-promo{display:inline-block;font-size:11px;font-weight:700;background:var(--promo);color:#fff;padding:2px 7px;border-radius:3px;margin-bottom:4px;}
  .precio-monto{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:24px;white-space:nowrap;}
  .precio-monto .periodo{font-family:'Inter',sans-serif;font-weight:500;font-size:12px;color:var(--muted);margin-left:3px;}
  .precio-row.featured .precio-monto .periodo{color:#4a4013;}

  .faq-item{border-bottom:1px solid var(--border);padding:14px 0;}
  .faq-item summary{cursor:pointer;font-weight:600;font-size:15px;}
  .faq-item p{margin-top:10px;color:var(--muted);font-size:14px;}

  .detalle-ctas{display:flex;gap:14px;margin-top:44px;flex-wrap:wrap;}
  .cta-outline{display:inline-block;border:1px solid var(--gold);color:var(--gold);font-weight:700;font-size:14px;padding:13px 26px;border-radius:4px;text-decoration:none;}
  .cta-outline:hover{background:rgba(232,209,42,0.08);}
  .detalle-ctas .cta{margin-top:0;}

  /* FOOTER */
  footer{border-top:1px solid var(--border);padding:40px 0;}
  .footer-inner{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center;}
  .footer-inner .logo{font-size:18px;}
  .footer-info{display:flex;gap:32px;flex-wrap:wrap;font-size:13px;color:var(--muted);}
  .footer-info b{color:var(--ink);display:block;font-size:11px;letter-spacing:0.5px;text-transform:uppercase;margin-bottom:4px;font-weight:700;}
  .footer-contact{display:flex;gap:10px;flex-wrap:wrap;}
  .footer-contact .cta-outline, .footer-contact .cta{padding:12px 20px;font-size:13px;margin-top:0;}

  /* ===== RESPONSIVE — prioridad celular ===== */
  @media (max-width:640px){
    .container{padding:0 18px;}
    nav.links{gap:16px;}
    .logo{font-size:19px;}
    .hero{min-height:82vh;}
    .about{padding:48px 0;}
    #servicios{padding:56px 0 64px;}
    #instalaciones{padding:0 0 64px;}
    .section-head{margin-bottom:28px;}
    .card-body{padding:18px;}

    /* precio: nombre y precio se apilan para no chocar en pantallas angostas */
    .precio-row{flex-direction:column;align-items:flex-start;gap:8px;}
    .precio-row .precio-info{max-width:100%;}
    .precio-monto{font-size:21px;}

    /* botones a ancho completo: más fáciles de tocar con el pulgar */
    .detalle-ctas{flex-direction:column;}
    .detalle-ctas .cta, .detalle-ctas .cta-outline{width:100%;text-align:center;}
    .hero .cta{width:100%;text-align:center;}
    .footer-contact{width:100%;}
    .footer-contact a{flex:1;text-align:center;}
    .footer-inner{flex-direction:column;align-items:flex-start;}
  }

  @media (max-width:400px){
    .logo{font-size:17px;}
    nav.links a{font-size:13px;}
    .hero h1{font-size:34px;}
  }

  /* ===== ANIMACIONES ===== */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .55s cubic-bezier(.16,.84,.44,1), transform .55s cubic-bezier(.16,.84,.44,1);}
  .reveal.is-visible{opacity:1;transform:translateY(0);}

  #view-inicio.route-fade, #view-detalle.route-fade{animation:fadeInUp .35s ease both;}
  @keyframes fadeInUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}

  @media (prefers-reduced-motion: reduce){
    *, *::before, *::after{
      animation-duration:0.001ms !important; animation-iteration-count:1 !important;
      transition-duration:0.001ms !important; scroll-behavior:auto !important;
    }
    .reveal{opacity:1 !important;transform:none !important;}
  }