/* ═══════════════════════════════════════════════
   PRECEPTISMO EN EL FÚTBOL® — estilos compartidos
   Usado por: index.html · tienda.html · gracias.html
   ═══════════════════════════════════════════════ */

      /* ════════════════════════════════════════
         VARIABLES & RESET
      ════════════════════════════════════════ */
      :root {
        --oro:      #d5a02e;
        --oro2:     #b8871f;
        --oro3:     #ab750c;
        --oro-luz:  #fcdf85;
        --metal:    linear-gradient(135deg, #fcdf85 0%, #d5a02e 38%, #ab750c 72%, #f2d071 100%);
        --negro:    #040c04;
        --panel:    #071307;
        --panel2:   #0a1a09;
        --surface:  #10240f;
        --border:   rgba(213,160,46,0.18);
        --text:     #f6f0e2;
        --muted:    #cbc3a6;
        --dim:      #8f8b6d;
      }
      *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
      html { scroll-behavior: smooth; }
      body {
        font-family: 'Barlow', system-ui, sans-serif;
        background: var(--negro);
        color: var(--text);
        line-height: 1.75;
        font-size: 17px;
        overflow-x: hidden;
      }
      a { color: inherit; text-decoration: none; }
      img { display: block; max-width: 100%; height: auto; }

      /* Foco visible para navegación por teclado */
      a:focus-visible, summary:focus-visible, label:focus-visible, button:focus-visible {
        outline: 3px solid var(--oro);
        outline-offset: 3px;
        border-radius: 4px;
      }

      /* Salto al contenido (accesibilidad) */
      .skip-link {
        position: absolute;
        left: -9999px;
        top: 0;
        z-index: 2000;
        background: var(--oro);
        color: #0d0a01;
        padding: 12px 20px;
        font-weight: 700;
      }
      .skip-link:focus { left: 8px; top: 8px; }

      /* ════════════════════════════════════════
         UTILIDADES
      ════════════════════════════════════════ */
      .container { width: min(1200px, 92vw); margin: 0 auto; }
      .tag {
        display: inline-block;
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 0.14em;
        text-transform: uppercase;
        color: var(--oro);
        background: rgba(213,160,46,0.1);
        border: 1px solid rgba(213,160,46,0.3);
        padding: 4px 12px;
        border-radius: 999px;
      }
      .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 15px 32px;
        border-radius: 4px;
        background: var(--metal);
        color: #0d0a01;
        font-family: 'Bebas Neue', sans-serif;
        font-size: 18px;
        letter-spacing: 0.08em;
        border: none;
        cursor: pointer;
        text-shadow: 0 1px 0 rgba(255,255,255,0.25);
        transition: filter 0.2s, transform 0.15s, box-shadow 0.2s;
        box-shadow: 0 6px 24px rgba(213,160,46,0.28), inset 0 1px 0 rgba(255,255,255,0.35);
      }
      .btn-primary:hover {
        filter: brightness(1.12);
        transform: translateY(-2px);
        box-shadow: 0 10px 32px rgba(213,160,46,0.45), inset 0 1px 0 rgba(255,255,255,0.4);
      }
      .btn-outline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 13px 28px;
        border-radius: 4px;
        border: 2px solid var(--oro);
        color: var(--oro);
        font-family: 'Bebas Neue', sans-serif;
        font-size: 17px;
        letter-spacing: 0.08em;
        transition: background 0.2s, color 0.2s;
      }
      .btn-outline:hover { background: var(--oro); color: #0d0a01; }

      .section-title {
        font-family: 'Bebas Neue', sans-serif;
        font-size: clamp(34px, 5vw, 56px);
        line-height: 1.05;
        color: var(--text);
        letter-spacing: 0.02em;
      }
      /* Degradado metálico en las palabras destacadas (con color sólido de respaldo) */
      .section-title span,
      .hero h1 em,
      .book-info h2 span {
        color: var(--oro-luz);
      }
      @supports (-webkit-background-clip: text) {
        .section-title span,
        .hero h1 em,
        .book-info h2 span {
          background: var(--metal);
          -webkit-background-clip: text;
          background-clip: text;
          -webkit-text-fill-color: transparent;
          color: transparent;
        }
      }

      /* ════════════════════════════════════════
         MENÚ
      ════════════════════════════════════════ */
      .site-header {
        position: sticky;
        top: 0;
        z-index: 999;
        background: rgba(4,12,4,0.93);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border);
      }
      .nav-wrap {
        display: flex;
        align-items: center;
        gap: 20px;
        padding: 14px 0;
        position: relative;
      }
      .brand {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 22px;
        letter-spacing: 0.06em;
        color: var(--oro-luz);
      }
      .brand span { color: var(--text); }
      .nav-links {
        display: flex;
        align-items: center;
        gap: 6px;
        margin-left: auto;
      }
      .nav-links a {
        color: var(--muted);
        font-weight: 600;
        font-size: 14px;
        letter-spacing: 0.03em;
        padding: 7px 13px;
        border-radius: 4px;
        transition: color 0.15s, background 0.15s;
      }
      .nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
      .nav-links .btn-nav {
        background: var(--oro);
        color: #0d0a01;
        font-weight: 800;
        border-radius: 4px;
      }
      .nav-links .btn-nav:hover { background: var(--oro2); }
      .nav-toggle {
        position: absolute;
        opacity: 0;
        width: 1px; height: 1px;
        pointer-events: none;
      }
      .nav-burger { display: none; font-size: 1.5rem; color: var(--oro); cursor: pointer; margin-left: auto; }
      @media (max-width: 860px) {
        .nav-burger { display: block; }
        .nav-links {
          position: absolute; left: 0; right: 0; top: 100%;
          flex-direction: column; align-items: flex-start;
          background: rgba(4,12,4,0.98);
          padding: 0 20px;
          gap: 6px;
          max-height: 0; overflow: hidden;
          transition: max-height 0.25s ease, padding 0.25s ease;
        }
        .nav-links a { width: 100%; }
        .nav-toggle:checked ~ .nav-links { max-height: 460px; padding: 14px 20px 18px; }
        .nav-toggle:focus-visible ~ .nav-burger { outline: 3px solid var(--oro); outline-offset: 3px; }
      }

      /* ════════════════════════════════════════
         HERO
      ════════════════════════════════════════ */
      .hero {
        position: relative;
        min-height: 88vh;
        display: flex;
        align-items: center;
        overflow: hidden;
        background: var(--negro);
      }
      .hero-bg {
        position: absolute;
        inset: 0;
        z-index: 0;
      }
      .hero-bg img {
        width: 100%; height: 100%;
        object-fit: cover;
        opacity: 0.28;
        filter: saturate(0.4);
      }
      .hero-bg::after {
        content: '';
        position: absolute;
        inset: 0;
        background:
          linear-gradient(90deg, rgba(4,12,4,0.98) 38%, rgba(4,12,4,0.3) 100%),
          linear-gradient(0deg, rgba(4,12,4,0.9) 0%, transparent 50%);
      }
      .hero-grid {
        position: relative;
        z-index: 1;
        display: grid;
        grid-template-columns: 1fr minmax(420px, 560px);
        gap: 72px;
        align-items: center;
        padding: 80px 0;
      }
      .hero-eyebrow { margin-bottom: 20px; }
      .hero h1 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: clamp(52px, 7vw, 88px);
        line-height: 0.95;
        letter-spacing: 0.02em;
        margin-bottom: 8px;
        color: var(--text);
      }
      .hero h1 em { font-style: normal; }
      .hero-author {
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--oro);
        margin-bottom: 22px;
        margin-top: 14px;
        opacity: 0.9;
      }
      .hero-desc {
        font-size: 19px;
        color: var(--muted);
        line-height: 1.75;
        margin-bottom: 34px;
        max-width: 520px;
      }
      .hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

      /* Libro protagonista del hero */
      .hero-book {
        position: relative;
        display: flex;
        justify-content: center;
        perspective: 1500px;
        animation: flotar 7s ease-in-out infinite;
      }
      @keyframes flotar {
        0%, 100% { transform: translateY(0); }
        50%      { transform: translateY(-16px); }
      }
      /* Halo dorado: despega la portada del fondo verde oscuro */
      .hero-book::before {
        content: '';
        position: absolute;
        top: 50%; left: 50%;
        width: 132%; padding-bottom: 132%;
        transform: translate(-50%, -50%);
        background: radial-gradient(circle,
                    rgba(213,160,46,0.30) 0%,
                    rgba(213,160,46,0.11) 38%,
                    transparent 68%);
        pointer-events: none;
        z-index: 0;
      }
      .hero-book-inner {
        position: relative;
        z-index: 1;
        width: 100%;
        max-width: 540px;
        transform: rotateY(-7deg) rotateX(2deg);
        transition: transform 0.5s cubic-bezier(.2,.7,.3,1);
      }
      .hero-book-inner:hover { transform: rotateY(0deg) rotateX(0deg) translateY(-8px); }
      .hero-book-inner img {
        width: 100%;
        aspect-ratio: 929 / 1024;
        object-fit: cover;
        border-radius: 8px;
        box-shadow:
          -28px 34px 80px rgba(0,0,0,0.85),
          0 0 60px rgba(213,160,46,0.18),
          0 0 0 1px rgba(213,160,46,0.35);
      }
      /* Brillo diagonal tipo barniz */
      .hero-book-inner::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: 8px;
        background: linear-gradient(115deg,
                    rgba(255,255,255,0.13) 0%,
                    rgba(255,255,255,0) 34%);
        pointer-events: none;
      }
      .hero-book-badge {
        position: absolute;
        bottom: 18px;
        right: -18px;
        z-index: 2;
        background: var(--metal);
        color: #0d0a01;
        font-family: 'Bebas Neue', sans-serif;
        font-size: 15px;
        letter-spacing: 0.08em;
        padding: 11px 18px;
        border-radius: 4px;
        text-shadow: 0 1px 0 rgba(255,255,255,0.25);
        box-shadow: 0 10px 28px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.35);
      }

      /* Tablet: el libro se achica pero no desaparece */
      @media (max-width: 1100px) {
        .hero-grid { grid-template-columns: 1fr minmax(300px, 360px); gap: 44px; }
        .hero-book-inner { max-width: 360px; }
      }
      /* Movil: el libro pasa arriba del texto, sin inclinacion */
      @media (max-width: 900px) {
        .hero { min-height: auto; }
        .hero-grid { grid-template-columns: 1fr; gap: 36px; padding: 48px 0 64px; }
        .hero-book { order: -1; }
        .hero-book-inner {
          max-width: 260px;
          transform: none;
        }
        .hero-book-inner:hover { transform: none; }
        .hero-book-badge { right: -10px; bottom: 12px; font-size: 13px; padding: 9px 14px; }
        .hero-desc { font-size: 17px; }
      }

      /* ════════════════════════════════════════
         FRANJA DE CREDENCIALES
      ════════════════════════════════════════ */
      .credenciales {
        background: var(--panel2);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        padding: 26px 0;
      }
      .credenciales-inner {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
      }
      .credencial {
        display: flex;
        flex-direction: column;
        gap: 3px;
        padding-left: 16px;
        border-left: 2px solid rgba(213,160,46,0.45);
      }
      .credencial strong {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 17px;
        letter-spacing: 0.06em;
        color: var(--oro-luz);
      }
      .credencial span {
        font-size: 14px;
        color: var(--muted);
        line-height: 1.45;
      }
      @media (max-width: 860px) {
        .credenciales-inner { grid-template-columns: repeat(2, 1fr); gap: 20px; }
      }
      @media (max-width: 480px) {
        .credenciales-inner { grid-template-columns: 1fr; }
      }

      /* ════════════════════════════════════════
         SECCIÓN LIBRO (COMPRA)
      ════════════════════════════════════════ */
      .book-section {
        padding: 96px 0;
        background: var(--panel);
        position: relative;
        overflow: hidden;
      }
      .book-section::before {
        content: '';
        position: absolute;
        top: -100px; right: -100px;
        width: 500px; height: 500px;
        background: radial-gradient(circle, rgba(213,160,46,0.08) 0%, transparent 70%);
        pointer-events: none;
      }
      .book-grid {
        display: grid;
        grid-template-columns: minmax(400px, 540px) 1fr;
        gap: 80px;
        align-items: center;
        position: relative;
      }
      .book-cover-wrap {
        position: relative;
        perspective: 1500px;
        animation: flotar 8s ease-in-out infinite 0.6s;
      }
      /* Halo dorado detras de la portada */
      .book-cover-wrap::before {
        content: '';
        position: absolute;
        top: 50%; left: 50%;
        width: 138%; padding-bottom: 138%;
        transform: translate(-50%, -50%);
        background: radial-gradient(circle,
                    rgba(213,160,46,0.26) 0%,
                    rgba(213,160,46,0.09) 40%,
                    transparent 70%);
        pointer-events: none;
        z-index: 0;
      }
      .book-cover-wrap img {
        position: relative;
        z-index: 1;
        width: 100%;
        aspect-ratio: 929 / 1024;
        object-fit: cover;
        border-radius: 8px;
        transform: rotateY(6deg) rotateX(2deg);
        transition: transform 0.5s cubic-bezier(.2,.7,.3,1);
        box-shadow:
          26px 34px 80px rgba(0,0,0,0.85),
          0 0 60px rgba(213,160,46,0.16),
          0 0 0 1px rgba(213,160,46,0.35);
      }
      .book-cover-wrap:hover img { transform: rotateY(0) rotateX(0) scale(1.03); }
      .book-cover-accent {
        position: absolute;
        top: -14px; left: -14px; right: -14px; bottom: -14px;
        border: 1px solid rgba(213,160,46,0.28);
        border-radius: 12px;
        pointer-events: none;
        z-index: 2;
      }
      .book-info .tag { margin-bottom: 18px; }
      .book-info h2 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: clamp(40px, 5.2vw, 68px);
        line-height: 0.98;
        letter-spacing: 0.02em;
        color: var(--text);
        margin-bottom: 6px;
      }
      
      .book-author {
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--oro);
        opacity: 0.85;
        margin-bottom: 22px;
      }
      .book-info p {
        font-size: 17px;
        color: var(--muted);
        line-height: 1.78;
        margin-bottom: 16px;
      }
      .book-features {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin: 24px 0 32px;
      }
      .book-feature {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 15px;
        color: var(--muted);
      }
      .book-feature-dot {
        width: 8px; height: 8px;
        border-radius: 50%;
        background: var(--oro);
        flex-shrink: 0;
      }
      .book-cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
      .book-price {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 28px;
        letter-spacing: 0.04em;
        color: var(--oro);
      }
      @media (max-width: 1100px) {
        .book-grid { grid-template-columns: minmax(320px, 400px) 1fr; gap: 48px; }
      }
      @media (max-width: 860px) {
        .book-grid { grid-template-columns: 1fr; gap: 44px; }
        .book-cover-wrap { max-width: 340px; margin: 0 auto; animation: none; }
        .book-cover-wrap img { transform: none; }
      }

      /* ════════════════════════════════════════
         3 PRECEPTOS (TARJETAS)
      ════════════════════════════════════════ */
      .preceptos-section { padding: 96px 0; background: var(--negro); }
      .preceptos-header { text-align: center; margin-bottom: 56px; }
      .preceptos-header .tag { margin-bottom: 16px; }
      .preceptos-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
      }
      .precepto-card {
        background: var(--panel2);
        border: 1px solid var(--border);
        border-radius: 8px;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
      }
      .precepto-card:hover {
        transform: translateY(-6px);
        border-color: rgba(213,160,46,0.45);
        box-shadow: 0 20px 48px rgba(0,0,0,0.5), 0 0 0 1px rgba(213,160,46,0.15);
      }
      .precepto-img {
        width: 100%;
        height: 220px;
        overflow: hidden;
        position: relative;
      }
      .precepto-img img {
        width: 100%; height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
      }
      .precepto-card:hover .precepto-img img { transform: scale(1.05); }
      .precepto-img-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(0deg, rgba(4,12,4,0.7) 0%, transparent 60%);
      }
      .precepto-body {
        padding: 24px 22px 28px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        flex: 1;
      }
      .precepto-num {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 48px;
        line-height: 1;
        color: rgba(213,160,46,0.12);
        margin-bottom: -8px;
      }
      .precepto-body h3 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 24px;
        letter-spacing: 0.04em;
        color: var(--oro);
      }
      .precepto-body p {
        font-size: 15px;
        color: var(--muted);
        line-height: 1.7;
      }
      .precepto-body p.resaltado {
        font-size: 14px;
        font-weight: 700;
        color: var(--text);
        background: rgba(213,160,46,0.08);
        border-left: 3px solid var(--oro);
        padding: 10px 14px;
        border-radius: 0 4px 4px 0;
      }
      .precepto-body .btn-outline { margin-top: auto; width: fit-content; font-size: 15px; padding: 10px 22px; }
      @media (max-width: 860px) { .preceptos-grid { grid-template-columns: 1fr; } }
      @media (max-width: 1024px) and (min-width: 861px) { .preceptos-grid { grid-template-columns: repeat(2,1fr); } }

      /* ════════════════════════════════════════
         ANÁLISIS / TEXTO PRINCIPAL
      ════════════════════════════════════════ */
      .analisis-section {
        padding: 96px 0;
        background: var(--panel);
        position: relative;
        overflow: hidden;
      }
      .analisis-section::after {
        content: '';
        position: absolute;
        bottom: -80px; left: -80px;
        width: 400px; height: 400px;
        background: radial-gradient(circle, rgba(213,160,46,0.06) 0%, transparent 70%);
        pointer-events: none;
      }
      .analisis-inner { max-width: 800px; position: relative; }
      .analisis-inner .tag { margin-bottom: 18px; }
      .analisis-inner h2 { margin-bottom: 8px; }
      .analisis-author {
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--oro);
        opacity: 0.75;
        margin-bottom: 30px;
      }
      .analisis-inner p {
        font-size: 17px;
        color: var(--muted);
        line-height: 1.82;
        margin-bottom: 18px;
      }
      .analisis-inner p strong { color: var(--text); font-weight: 700; }
      .analisis-quote {
        border-left: 4px solid var(--oro);
        background: rgba(213,160,46,0.07);
        padding: 18px 24px;
        border-radius: 0 6px 6px 0;
        margin: 32px 0;
      }
      .analisis-quote p {
        font-size: 18px;
        font-weight: 600;
        color: var(--text);
        line-height: 1.6;
        margin: 0;
        font-style: italic;
      }

      /* ════════════════════════════════════════
         AUTOR / BIOGRAFÍA
      ════════════════════════════════════════ */
      .autor-section {
        padding: 96px 0;
        background: var(--negro);
      }
      .autor-grid {
        display: grid;
        grid-template-columns: 380px 1fr;
        gap: 64px;
        align-items: start;
      }
      .autor-img-wrap {
        position: relative;
        z-index: 0;               /* crea contexto de apilamiento para el marco */
      }
      .autor-img-wrap img {
        position: relative;
        z-index: 1;
        width: 100%;
        border-radius: 8px;
        box-shadow: 0 24px 56px rgba(0,0,0,0.6);
        border: 1px solid var(--border);
      }
      .autor-img-frame {
        position: absolute;
        top: 16px; left: 16px; right: -16px; bottom: -16px;
        border: 1px solid rgba(213,160,46,0.35);
        border-radius: 8px;
        z-index: 0;
      }
      .autor-info .tag { margin-bottom: 18px; }
      .autor-info h2 { margin-bottom: 18px; }
      .autor-info p {
        font-size: 17px;
        color: var(--muted);
        line-height: 1.8;
        margin-bottom: 16px;
      }
      .autor-info p strong { color: var(--text); }
      .autor-valores {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        margin-top: 28px;
      }
      .autor-valor {
        background: var(--panel2);
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 14px 16px;
      }
      .autor-valor-title {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 16px;
        letter-spacing: 0.04em;
        color: var(--oro);
        margin-bottom: 4px;
      }
      .autor-valor p {
        font-size: 13px;
        color: var(--dim);
        margin: 0;
        line-height: 1.5;
      }
      @media (max-width: 900px) {
        .autor-grid { grid-template-columns: 1fr; gap: 40px; }
        .autor-img-wrap { max-width: 300px; }
        .autor-valores { grid-template-columns: 1fr; }
      }

      /* ════════════════════════════════════════
         SECCIÓN QUÉ ES (filosofía)
      ════════════════════════════════════════ */
      .filosofia-section { padding: 96px 0; background: var(--panel); }
      .filosofia-grid {
        display: grid;
        grid-template-columns: 1fr 400px;
        gap: 64px;
        align-items: center;
      }
      .filosofia-text .tag { margin-bottom: 18px; }
      .filosofia-text h2 { margin-bottom: 22px; }
      .filosofia-text p {
        font-size: 17px;
        color: var(--muted);
        line-height: 1.8;
        margin-bottom: 16px;
      }
      .filosofia-text p strong { color: var(--text); }
      .filosofia-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 12px;
        margin-top: 22px;
      }
      .filosofia-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-size: 16px;
        color: var(--muted);
        line-height: 1.6;
      }
      .filosofia-list li::before {
        content: '';
        width: 6px; height: 6px;
        border-radius: 50%;
        background: var(--oro);
        margin-top: 9px;
        flex-shrink: 0;
      }
      .filosofia-img img {
        width: 100%;
        border-radius: 8px;
        box-shadow: 0 20px 50px rgba(0,0,0,0.6);
        border: 1px solid var(--border);
      }
      @media (max-width: 900px) {
        .filosofia-grid { grid-template-columns: 1fr; gap: 40px; }
      }

      /* ════════════════════════════════════════
         PALABRAS CON P
      ════════════════════════════════════════ */
      .palabras-section { padding: 80px 0; background: var(--negro); }
      .palabras-header { margin-bottom: 40px; }
      .palabras-header .tag { margin-bottom: 14px; }
      .palabras-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 14px;
      }
      .palabra-card {
        background: var(--panel2);
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 20px 16px;
        text-align: center;
        transition: border-color 0.2s, background 0.2s;
      }
      .palabra-card:hover { border-color: rgba(213,160,46,0.5); background: rgba(213,160,46,0.05); }
      .palabra-card strong {
        display: block;
        font-family: 'Bebas Neue', sans-serif;
        font-size: 20px;
        letter-spacing: 0.04em;
        color: var(--oro);
        margin-bottom: 6px;
      }
      .palabra-card span { font-size: 14px; color: var(--dim); line-height: 1.5; }
      @media (max-width: 860px) { .palabras-grid { grid-template-columns: repeat(2,1fr); } }
      @media (max-width: 480px) { .palabras-grid { grid-template-columns: 1fr; } }

      /* ════════════════════════════════════════
         PRECEPTOR PEDAGÓGICO
      ════════════════════════════════════════ */
      .pedagogia-section { padding: 96px 0; background: var(--panel); }
      .pedagogia-grid {
        display: grid;
        grid-template-columns: 400px 1fr;
        gap: 60px;
        align-items: start;
      }
      .pedagogia-img img {
        width: 100%;
        border-radius: 8px;
        box-shadow: 0 20px 50px rgba(0,0,0,0.6);
        border: 1px solid var(--border);
      }
      .pedagogia-content .tag { margin-bottom: 18px; }
      .pedagogia-content h2 { margin-bottom: 22px; }
      .pedagogia-banner {
        background: rgba(213,160,46,0.1);
        border: 1px solid rgba(213,160,46,0.3);
        border-radius: 6px;
        padding: 16px 20px;
        margin-bottom: 26px;
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        line-height: 1.6;
        font-style: italic;
      }
      .pedagogia-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 14px;
      }
      .pedagogia-item {
        display: flex;
        align-items: flex-start;
        gap: 14px;
        font-size: 16px;
        color: var(--muted);
        line-height: 1.7;
      }
      .pedagogia-item strong { color: var(--oro); display: block; margin-bottom: 2px; font-size: 14px; letter-spacing: 0.05em; text-transform: uppercase; }
      .pedagogia-icon {
        width: 36px; height: 36px;
        border-radius: 6px;
        background: rgba(213,160,46,0.12);
        border: 1px solid rgba(213,160,46,0.25);
        display: flex; align-items: center; justify-content: center;
        flex-shrink: 0;
        font-size: 16px;
        margin-top: 2px;
      }
      @media (max-width: 900px) { .pedagogia-grid { grid-template-columns: 1fr; gap: 40px; } }

      /* ════════════════════════════════════════
         MUNDIAL 2026 (puente al calendario)
      ════════════════════════════════════════ */
      .mundial-section { padding: 80px 0; background: var(--negro); }
      .mundial-box {
        border: 1px solid rgba(213,160,46,0.35);
        border-radius: 10px;
        background: linear-gradient(140deg, rgba(213,160,46,0.09) 0%, var(--panel2) 60%);
        padding: 44px 40px;
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 32px;
        align-items: center;
      }
      .mundial-box .tag { margin-bottom: 14px; }
      .mundial-box h2 { margin-bottom: 12px; }
      .mundial-box p { font-size: 17px; color: var(--muted); line-height: 1.75; max-width: 620px; }
      .mundial-stats { display: flex; gap: 26px; margin-top: 22px; flex-wrap: wrap; }
      .mundial-stat strong {
        display: block;
        font-family: 'Bebas Neue', sans-serif;
        font-size: 34px;
        line-height: 1;
        color: var(--oro);
      }
      .mundial-stat span { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--dim); }
      .mundial-cta { display: flex; flex-direction: column; gap: 12px; }
      @media (max-width: 860px) {
        .mundial-box { grid-template-columns: 1fr; padding: 32px 24px; }
      }

      /* ════════════════════════════════════════
         VIDEO
      ════════════════════════════════════════ */
      .video-section { padding: 80px 0; background: var(--panel); }
      .video-inner { text-align: center; }
      .video-inner .tag { margin-bottom: 16px; }
      .video-inner h2 { margin-bottom: 32px; }
      .video-wrap {
        position: relative;
        max-width: 800px;
        margin: 0 auto;
        border-radius: 10px;
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: 0 20px 60px rgba(0,0,0,0.6);
      }
      .video-wrap iframe {
        width: 100%;
        aspect-ratio: 16/9;
        border: none;
        display: block;
      }

      /* ════════════════════════════════════════
         CONFIANZA & FAQ
      ════════════════════════════════════════ */
      .trust-section { padding: 80px 0; background: var(--negro); }
      .trust-header { text-align: center; margin-bottom: 44px; }
      .trust-header .tag { margin-bottom: 14px; }
      .trust-grid {
        display: grid;
        grid-template-columns: repeat(4,1fr);
        gap: 18px;
        margin-bottom: 28px;
      }
      .trust-card {
        background: var(--panel2);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 22px 18px;
      }
      .trust-card-icon { font-size: 24px; margin-bottom: 10px; }
      .trust-card h4 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 18px;
        letter-spacing: 0.04em;
        color: var(--oro);
        margin-bottom: 8px;
      }
      .trust-card p { font-size: 14px; color: var(--muted); line-height: 1.6; }
      @media (max-width: 860px) { .trust-grid { grid-template-columns: repeat(2,1fr); } }
      @media (max-width: 480px) { .trust-grid { grid-template-columns: 1fr; } }

      .faq-list { max-width: 760px; margin: 0 auto; }
      .faq-list details {
        background: var(--panel2);
        border: 1px solid var(--border);
        border-radius: 6px;
        margin-bottom: 10px;
        overflow: hidden;
        transition: border-color 0.2s;
      }
      .faq-list details[open] { border-color: rgba(213,160,46,0.4); }
      .faq-list summary {
        padding: 16px 20px;
        cursor: pointer;
        font-weight: 700;
        font-size: 16px;
        color: var(--text);
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
      }
      .faq-list summary::-webkit-details-marker { display: none; }
      .faq-list summary::after { content: '+'; color: var(--oro); font-size: 20px; flex-shrink: 0; }
      .faq-list details[open] summary::after { content: '−'; }
      .faq-list details p { padding: 0 20px 16px; font-size: 15px; color: var(--muted); line-height: 1.7; }

      /* ════════════════════════════════════════
         CTA FINAL
      ════════════════════════════════════════ */
      .cta-final {
        padding: 96px 0;
        background: linear-gradient(160deg, #0d1c0b 0%, var(--negro) 100%);
        text-align: center;
        position: relative;
        overflow: hidden;
      }
      .cta-final::before {
        content: '';
        position: absolute;
        top: 50%; left: 50%;
        transform: translate(-50%,-50%);
        width: 600px; height: 600px;
        background: radial-gradient(circle, rgba(213,160,46,0.1) 0%, transparent 70%);
        pointer-events: none;
      }
      .cta-final-inner { position: relative; z-index: 1; }
      .cta-final .tag { margin-bottom: 18px; }
      .cta-final h2 { margin-bottom: 18px; }
      .cta-final p {
        font-size: 18px;
        color: var(--muted);
        max-width: 540px;
        margin: 0 auto 36px;
        line-height: 1.75;
      }
      .cta-final-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

      /* ════════════════════════════════════════
         FOOTER
      ════════════════════════════════════════ */
      .site-footer {
        background: var(--panel);
        border-top: 1px solid var(--border);
        padding: 40px 0 32px;
      }
      .footer-nav {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px 22px;
        margin-bottom: 22px;
      }
      .footer-nav a {
        font-size: 14px;
        color: var(--muted);
        transition: color 0.15s;
      }
      .footer-nav a:hover { color: var(--oro); }
      .site-footer p { font-size: 14px; color: var(--dim); text-align: center; }
      .site-footer strong { color: var(--oro); }

      /* ════════════════════════════════════════
         FLOTANTE
      ════════════════════════════════════════ */
      .floating-btn {
        position: fixed;
        bottom: 22px; right: 22px;
        z-index: 1000;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 13px 22px;
        background: var(--oro);
        color: #0d0a01;
        font-family: 'Bebas Neue', sans-serif;
        font-size: 16px;
        letter-spacing: 0.08em;
        border-radius: 4px;
        box-shadow: 0 10px 30px rgba(213,160,46,0.4);
        transition: transform 0.15s, background 0.15s;
      }
      .floating-btn:hover { background: var(--oro2); transform: translateY(-2px); }
      @media (max-width: 540px) {
        .floating-btn { left: 16px; right: 16px; justify-content: center; }
      }

      /* ════════════════════════════════════════
         FADE-IN ON SCROLL
      ════════════════════════════════════════ */
      .reveal {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity 0.6s ease, transform 0.6s ease;
      }
      .reveal.visible { opacity: 1; transform: none; }

      /* ════════════════════════════════════════
         AJUSTES MÓVIL
      ════════════════════════════════════════ */

      /* El header pegajoso tapaba el inicio de cada sección al usar el menú */
      section[id], #contenido { scroll-margin-top: 86px; }

      /* Evita que iOS agrande el texto al girar el teléfono */
      html { -webkit-text-size-adjust: 100%; }

      @media (max-width: 860px) {
        body { font-size: 16px; }
        .container { width: min(1200px, 90vw); }

        /* 96px de aire vertical en celular se siente eterno */
        .book-section, .preceptos-section, .analisis-section,
        .autor-section, .filosofia-section, .pedagogia-section,
        .cta-final { padding: 60px 0; }
        .palabras-section, .mundial-section,
        .video-section, .trust-section { padding: 56px 0; }

        .preceptos-header { margin-bottom: 36px; }
        .trust-header    { margin-bottom: 32px; }
        .palabras-header { margin-bottom: 26px; }
        .faq-list        { margin-top: 36px !important; }

        /* Áreas táctiles del menú: antes medían 31px de alto */
        .nav-links a { padding: 13px 14px; font-size: 15px; }
        .nav-burger  { padding: 6px 4px; }

        /* Tipografía calculada sobre el ancho real, no sobre el mínimo del clamp */
        .hero h1        { font-size: clamp(40px, 12.5vw, 62px); }
        .section-title  { font-size: clamp(30px, 8.5vw, 44px); }
        .book-info h2   { font-size: clamp(32px, 9vw, 46px); }
        .hero-desc      { font-size: 16.5px; line-height: 1.7; }

        /* Botones a ancho completo: mucho más fáciles de tocar con el pulgar */
        .hero-btns, .book-cta-row, .cta-final-btns { width: 100%; }
        .hero-btns > a, .book-cta-row > a,
        .cta-final-btns > a, .mundial-cta > a {
          flex: 1 1 100%;
          justify-content: center;
        }

        .analisis-quote    { padding: 14px 18px; margin: 24px 0; }
        .analisis-quote p  { font-size: 16px; }
        .pedagogia-banner  { font-size: 15px; padding: 14px 16px; }
        .faq-list summary  { font-size: 15px; padding: 14px 16px; }
        .faq-list details p{ padding: 0 16px 14px; }
        .credenciales      { padding: 22px 0; }
      }

      @media (max-width: 540px) {
        /* El botón flotante tapaba el pie de página */
        body { padding-bottom: 80px; }
        .floating-btn { bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }

        .hero-book-inner { max-width: 280px; }
        .mundial-box   { padding: 28px 20px; }
        .mundial-stats { gap: 18px; }

        /* Marcos decorativos que en pantalla angosta solo estorban */
        .autor-img-wrap    { max-width: 100%; }
        .autor-img-frame   { display: none; }
        .book-cover-accent { display: none; }

        .autor-valores { margin-top: 22px; }
        .video-section { padding: 48px 0; }
      }

      /* ════════════════════════════════════════
         MOVIMIENTO REDUCIDO (accesibilidad)
      ════════════════════════════════════════ */
      @media (prefers-reduced-motion: reduce) {
        html { scroll-behavior: auto; }
        *, *::before, *::after {
          animation-duration: 0.001ms !important;
          animation-iteration-count: 1 !important;
          transition-duration: 0.001ms !important;
        }
        .reveal { opacity: 1; transform: none; }
        .hero-book-inner { transform: none !important; }
        .hero-book, .book-cover-wrap { animation: none !important; }
        .book-cover-wrap img { transform: none !important; }
      }

      /* ════════════════════════════════════════
         TIENDA — página de producto
      ════════════════════════════════════════ */
      .tienda-hero { padding: 60px 0 80px; background: var(--negro); }
      .tienda-grid {
        display: grid;
        grid-template-columns: minmax(360px, 480px) 1fr;
        gap: 72px;
        align-items: center;
      }
      .tienda-portada { position: relative; perspective: 1500px; }
      .tienda-portada::before {
        content: '';
        position: absolute;
        top: 50%; left: 50%;
        width: 136%; padding-bottom: 136%;
        transform: translate(-50%, -50%);
        background: radial-gradient(circle,
                    rgba(213,160,46,0.26) 0%,
                    rgba(213,160,46,0.09) 40%,
                    transparent 70%);
        pointer-events: none;
      }
      .tienda-portada img {
        position: relative;
        z-index: 1;
        width: 100%;
        aspect-ratio: 929 / 1024;
        object-fit: cover;
        border-radius: 8px;
        transform: rotateY(6deg) rotateX(2deg);
        box-shadow:
          26px 34px 80px rgba(0,0,0,0.85),
          0 0 60px rgba(213,160,46,0.16),
          0 0 0 1px rgba(213,160,46,0.35);
      }
      .tienda-info .tag { margin-bottom: 16px; }
      .tienda-info h1 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: clamp(38px, 5vw, 64px);
        line-height: 1;
        letter-spacing: 0.02em;
        margin-bottom: 8px;
      }
      .tienda-formato {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--oro);
        margin-bottom: 24px;
      }

      /* Bloque de precio */
      .precio-caja {
        background: var(--panel2);
        border: 1px solid rgba(213,160,46,0.32);
        border-radius: 10px;
        padding: 26px 28px;
        margin: 28px 0;
      }
      .precio-fila { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
      .precio-valor {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 52px;
        line-height: 1;
        letter-spacing: 0.02em;
        color: var(--oro-luz);
      }
      .precio-moneda { font-size: 15px; color: var(--dim); letter-spacing: 0.08em; }
      .precio-nota {
        font-size: 14px;
        color: var(--muted);
        margin-top: 10px;
        line-height: 1.6;
      }
      .precio-caja .btn-primary { width: 100%; justify-content: center; margin-top: 20px; font-size: 20px; }

      /* Métodos de pago */
      .metodos {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 16px;
      }
      .metodo {
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 0.06em;
        color: var(--muted);
        background: rgba(213,160,46,0.08);
        border: 1px solid var(--border);
        border-radius: 4px;
        padding: 6px 11px;
      }

      /* Lista de lo que incluye */
      .incluye { list-style: none; display: flex; flex-direction: column; gap: 13px; }
      .incluye li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-size: 16px;
        color: var(--muted);
        line-height: 1.6;
      }
      .incluye li::before {
        content: '✓';
        color: var(--oro);
        font-weight: 800;
        flex-shrink: 0;
        margin-top: 1px;
      }

      /* Cómo funciona: 3 pasos */
      .pasos-section { padding: 80px 0; background: var(--panel); }
      .pasos-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 22px;
        margin-top: 44px;
      }
      .paso {
        background: var(--panel2);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 28px 24px;
      }
      .paso-num {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px; height: 40px;
        border-radius: 50%;
        background: var(--metal);
        color: #0d0a01;
        font-family: 'Bebas Neue', sans-serif;
        font-size: 20px;
        margin-bottom: 16px;
      }
      .paso h3 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 21px;
        letter-spacing: 0.04em;
        color: var(--oro-luz);
        margin-bottom: 8px;
      }
      .paso p { font-size: 15px; color: var(--muted); line-height: 1.65; }

      /* ════════════════════════════════════════
         GRACIAS — verificación del pago
      ════════════════════════════════════════ */
      .verificacion { padding: 90px 0; background: var(--negro); min-height: 70vh; }
      .verif-caja {
        max-width: 620px;
        margin: 0 auto;
        background: var(--panel2);
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 44px 40px;
        text-align: center;
      }
      .verif-icono { font-size: 46px; margin-bottom: 18px; line-height: 1; }
      .verif-caja h1 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: clamp(30px, 4vw, 44px);
        letter-spacing: 0.02em;
        margin-bottom: 12px;
      }
      .verif-caja > p { font-size: 17px; color: var(--muted); line-height: 1.7; margin-bottom: 22px; }
      .verif-caja.ok      { border-color: rgba(213,160,46,0.5); }
      .verif-caja.espera  { border-color: rgba(213,160,46,0.28); }
      .verif-caja.error   { border-color: rgba(190,70,60,0.5); }
      .verif-detalle {
        background: rgba(0,0,0,0.35);
        border: 1px solid var(--border);
        border-radius: 6px;
        padding: 16px 18px;
        margin: 22px 0;
        text-align: left;
        font-size: 14px;
        color: var(--muted);
      }
      .verif-detalle div { display: flex; justify-content: space-between; gap: 14px; padding: 5px 0; }
      .verif-detalle span:last-child { color: var(--text); font-weight: 600; text-align: right; }
      .verif-caja .btn-primary { width: 100%; justify-content: center; font-size: 20px; }
      .verif-ayuda { font-size: 14px; color: var(--dim); margin-top: 20px; line-height: 1.6; }
      .cargando {
        width: 34px; height: 34px;
        margin: 0 auto 18px;
        border: 3px solid rgba(213,160,46,0.25);
        border-top-color: var(--oro);
        border-radius: 50%;
        animation: girar 0.8s linear infinite;
      }
      @keyframes girar { to { transform: rotate(360deg); } }
      .oculto { display: none !important; }

      @media (max-width: 900px) {
        .tienda-grid { grid-template-columns: 1fr; gap: 40px; }
        .tienda-portada { max-width: 320px; margin: 0 auto; }
        .tienda-portada img { transform: none; }
        .pasos-grid { grid-template-columns: 1fr; }
        .tienda-hero { padding: 40px 0 56px; }
        .pasos-section { padding: 56px 0; }
        .verificacion { padding: 56px 0; }
        .verif-caja { padding: 32px 22px; }
      }
      @media (prefers-reduced-motion: reduce) {
        .tienda-portada img { transform: none !important; }
        .cargando { animation-duration: 1.6s; }
      }