:root {
      --accent: #0071e3;
      --accent-dark: #005bb5;
      --text: #1d1d1f;
      --text-sec: #6e6e73;
      --bg-soft: #f5f5f7;
      --radius: 20px;
      --green: #00a499;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      color: var(--text);
      line-height: 1.55;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    .navbar {
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0,0,0,0.06);
      padding: 0.85rem 0;
    }
    .navbar-brand {
      font-weight: 800;
      font-size: 1.45rem;
      letter-spacing: -0.6px;
      color: var(--text) !important;
    }
    .navbar-brand span { color: #000000; }
    .nav-links a {
      color: var(--text-sec);
      text-decoration: none;
      font-weight: 500;
      font-size: 0.95rem;
      margin-right: 1.6rem;
    }
    .nav-links a:hover { color: var(--accent); }
    .btn-nav {
      background: #2f2f2f;
      color: #fff !important;
      border-radius: 980px;
      padding: 0.5rem 1.35rem;
      font-weight: 600;
      font-size: 0.95rem;
      border: none;
      text-decoration: none !important;
      transition: all 0.25s;
    }
    .btn-nav:hover {
      background: var(--accent-dark);
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(0,113,227,0.3);
      color: #fff !important;
    }
    .hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 30, 65, 0.82), rgb(76 103 203 / 10%)), url(fondo.png) center / cover no-repeat;
    color: #fff;
    padding: 130px 0 80px;
}
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 780px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      background: rgba(255,255,255,0.18);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255,255,255,0.3);
      color: #fff;
      font-size: 0.92rem;
      font-weight: 600;
      padding: 0.5rem 1.2rem;
      border-radius: 980px;
      margin-bottom: 1.5rem;
    }
    .hero h1 {
      font-size: clamp(2.2rem, 5.4vw, 3.7rem);
      font-weight: 800;
      letter-spacing: -1.5px;
      line-height: 1.12;
      margin-bottom: 1.3rem;
      text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    }
    .hero h1 span { color: #7ec8ff; }
    .hero-lead {
      font-size: clamp(1.05rem, 2vw, 1.22rem);
      opacity: 0.95;
      max-width: 600px;
      margin: 0 auto 2rem;
      line-height: 1.6;
    }
    .btn-hero {
  background: #fff;
  color: var(--accent);
  border: none;
  border-radius: 980px;
  padding: 1.05rem 2.1rem;
  font-size: 1.08rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center; /* <-- Añade esta línea */
  gap: 0.5rem;
  text-decoration: none !important;
  transition: all 0.25s;
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}
    .btn-hero:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 36px rgba(0,0,0,0.28);
      color: var(--accent-dark);
    }
    .btn-hero-outline {
      background: transparent;
      color: #fff;
      border: 2px solid rgba(255,255,255,0.75);
      border-radius: 980px;
      padding: 0.95rem 1.8rem;
      font-size: 1.02rem;
      font-weight: 600;
      text-decoration: none !important;
      transition: all 0.25s;
    }
    .btn-hero-outline:hover {
      background: rgba(255,255,255,0.15);
      border-color: #fff;
      color: #fff;
    }
    .hero-badges-row {
      display: flex;
      justify-content: center;
      gap: 1.8rem;
      flex-wrap: wrap;
      margin-top: 2.6rem;
      font-size: 0.92rem;
      opacity: 0.9;
    }
    .hero-badges-row div { display: flex; align-items: center; gap: 0.4rem; }
    section { padding: 90px 0; }
    .section-label {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 0.6rem;
      display: block;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: clamp(1.9rem, 4vw, 2.7rem);
      font-weight: 800;
      letter-spacing: -1.1px;
      line-height: 1.15;
      margin-bottom: 1rem;
    }
    .section-desc {
      font-size: 1.1rem;
      color: var(--text-sec);
      max-width: 580px;
      line-height: 1.6;
    }

    /* PAQUETES OVERVIEW CARDS */
    .package-nav-card {
      background: #fff;
      border: 2px solid #e5e5ea;
      border-radius: var(--radius);
      padding: 2rem 1.7rem;
      height: 100%;
      transition: all 0.3s;
      text-align: center;
    }
    .package-nav-card:hover {
      border-color: var(--accent);
      transform: translateY(-6px);
      box-shadow: 0 16px 40px rgba(0,113,227,0.12);
    }
    .package-nav-card .icon {
      width: 60px; height: 60px;
      background: linear-gradient(135deg, #e8f2ff, #d6eaff);
      color: var(--accent);
      border-radius: 16px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.7rem;
      margin: 0 auto 1.1rem;
    }
    .package-nav-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.5rem; }
    .package-nav-card .price-tag { font-size: 1.6rem; font-weight: 800; color: var(--accent); margin: 0.6rem 0; }
    .package-nav-card .price-tag span { font-size: 0.95rem; font-weight: 500; color: var(--text-sec); }

    /* CONTENIDO DETALLADO */
    .content-block {
      background: #fff;
      border: 1px solid #e5e5ea;
      border-radius: var(--radius);
      padding: 2.4rem;
      margin-bottom: 2rem;
    }
    .content-block-header {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1.6rem;
      flex-wrap: wrap;
    }
    .content-block-header .icon-lg {
      width: 54px; height: 54px;
      background: linear-gradient(135deg, #e8f2ff, #d6eaff);
      color: var(--accent);
      border-radius: 14px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.6rem;
      flex-shrink: 0;
    }
    .content-block-header h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 0.15rem; }
    .content-block-header .badge-soon {
      background: #fff4e5;
      color: #b8630a;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 0.3rem 0.7rem;
      border-radius: 980px;
      margin-left: 0.5rem;
    }
    .includes-grid {
      list-style: none;
      padding: 0;
      margin: 0 0 1.6rem 0;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.55rem 1.5rem;
    }
    .includes-grid li {
      display: flex;
      gap: 0.6rem;
      font-size: 0.98rem;
      color: #333;
      align-items: flex-start;
    }
    .includes-grid li i { color: var(--accent); margin-top: 3px; flex-shrink: 0; }
    @media (max-width: 640px) { .includes-grid { grid-template-columns: 1fr; } }

    .syllabus-toggle {
      background: var(--bg-soft);
      border: none;
      border-radius: 12px;
      padding: 0.85rem 1.2rem;
      width: 100%;
      text-align: left;
      font-weight: 600;
      font-size: 0.98rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      color: var(--text);
      margin-bottom: 0.5rem;
    }
    .syllabus-toggle:hover { background: #ebebef; }
    .syllabus-toggle .chevron { transition: transform 0.25s; }
    .syllabus-toggle.open .chevron { transform: rotate(180deg); }
    .syllabus-body {
      display: none;
      padding: 1.2rem 1.4rem;
      font-size: 0.92rem;
      color: var(--text-sec);
      line-height: 1.7;
      border-left: 3px solid #d6eaff;
      margin-bottom: 1rem;
    }
    .syllabus-body.visible { display: block; }
    .syllabus-body strong { color: var(--text); }

    .free-sample-strip {
      background: linear-gradient(145deg, #f0f7ff, #fbe8ff);
      border: 1.5px dashed #b3d7ff;
      border-radius: 14px;
      padding: 1.1rem 1.4rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.8rem;
    }
    .free-sample-strip .txt { font-size: 0.95rem; color: #333; }
    .free-sample-strip .txt strong { color: var(--accent); }
    .btn-sample {
      background: #b536ff;
      color: #fff !important;
      border-radius: 980px;
      padding: 0.55rem 1.3rem;
      font-weight: 600;
      font-size: 0.9rem;
      text-decoration: none !important;
      white-space: nowrap;
    }
    .btn-sample:hover { background: var(--accent-dark); }

    /* METODO */
    .feature-card {
      background: #fff;
      border: 1px solid #e5e5ea;
      border-radius: var(--radius);
      padding: 1.9rem 1.7rem;
      height: 100%;
      transition: all 0.3s;
    }
    .feature-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,0.08); border-color: #c5dcff; }
    .feature-icon {
      width: 52px; height: 52px;
      background: linear-gradient(135deg, #e8f2ff, #d6eaff);
      color: var(--accent);
      border-radius: 14px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 1.1rem;
    }
    .feature-card h3 { font-size: 1.12rem; font-weight: 700; margin-bottom: 0.45rem; }
    .feature-card p { color: var(--text-sec); font-size: 0.96rem; margin: 0; }

    /* PRECIOS */
    .price-section {
      background: linear-gradient(160deg, #0071e3 0%, #c14db1 100%);
      color: #fff;
    }
    .price-card {
      background: #fff;
      border-radius: 26px;
      padding: 2.3rem 1.9rem;
      box-shadow: 0 20px 50px rgba(0,0,0,0.22);
      color: var(--text);
      height: 100%;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .price-card.featured { border: 2.5px solid #fff; transform: scale(1.03); }
    .price-card.featured::before {
      content: "MÁS COMPLETO";
      position: absolute;
      top: -13px; left: 50%; transform: translateX(-50%);
      background: #ff9500;
      color: #fff;
      font-size: 0.72rem;
      font-weight: 800;
      letter-spacing: 0.4px;
      padding: 0.32rem 0.9rem;
      border-radius: 980px;
      white-space: nowrap;
    }
    .price-card .pkg-name { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.2rem; }
    .price-card .pkg-desc { font-size: 0.88rem; color: var(--text-sec); margin-bottom: 1rem; min-height: 34px; }
    .price-amount { font-size: 3.1rem; font-weight: 800; letter-spacing: -2px; line-height: 1; }
    .price-amount span { font-size: 1.1rem; font-weight: 500; color: var(--text-sec); }
    .price-card .unico { color: var(--text-sec); font-size: 0.95rem; margin: 0.3rem 0 1.2rem; }
    .price-list {
      list-style: none;
      padding: 0;
      margin: 0 0 1.5rem;
      text-align: left;
      flex-grow: 1;
    }
    .price-list li { display: flex; gap: 0.6rem; margin-bottom: 0.6rem; font-size: 0.93rem; color: #333; }
    .price-list li i { color: var(--accent); margin-top: 3px; flex-shrink: 0; }
    .btn-bizum {
      width: 100%;
      background: var(--green);
      color: #fff !important;
      border: none;
      border-radius: 980px;
      padding: 0.85rem;
      font-weight: 600;
      font-size: 0.98rem;
      margin-top: 0.5rem;
      transition: all 0.25s;
    }
    .btn-bizum:hover { filter: brightness(1.08); }
    .bizum-box {
      display: none;
      background: #f0faf9;
      border: 1.5px dashed var(--green);
      border-radius: 12px;
      padding: 1rem;
      margin-top: 0.8rem;
      font-size: 0.88rem;
      text-align: left;
      color: #2c3e50;
    }
    .bizum-box.visible { display: block; }
    .soon-overlay {
      text-align: center;
      padding: 1rem 0.5rem;
      background: #fff4e5;
      border-radius: 12px;
      color: #b8630a;
      font-weight: 700;
      font-size: 0.95rem;
      margin-top: auto;
    }
    .soon-overlay small { display: block; font-weight: 500; color: #a1731f; margin-top: 0.3rem; font-size: 0.8rem; }

    /* FAQ */
    .faq-item {
      background: #fff;
      border: 1px solid #e5e5ea;
      border-radius: 14px;
      margin-bottom: 0.8rem;
      overflow: hidden;
    }
    .faq-q {
      padding: 1.1rem 1.4rem;
      font-weight: 600;
      font-size: 1rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-q:hover { background: var(--bg-soft); }
    .faq-q .chevron { transition: transform 0.25s; color: var(--accent); }
    .faq-q.open .chevron { transform: rotate(180deg); }
    .faq-a {
      display: none;
      padding: 0 1.4rem 1.2rem;
      color: var(--text-sec);
      font-size: 0.96rem;
      line-height: 1.6;
    }
    .faq-a.visible { display: block; }

    .exam-tab {
      background: #fff;
      border: 1.5px solid #e5e5ea;
      border-radius: 980px;
      padding: 0.6rem 1.5rem;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-sec);
      cursor: pointer;
      transition: all 0.2s;
    }
    .exam-tab:hover { border-color: var(--accent); color: var(--accent); }
    .exam-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

    .final-cta { background: var(--bg-soft); text-align: center; padding: 100px 0; }
    .final-cta h2 { font-size: clamp(1.9rem, 4.3vw, 2.7rem); font-weight: 800; letter-spacing: -1.2px; margin-bottom: 1.2rem; }

    footer { background: #1d1d1f; color: #a1a1a6; padding: 2.6rem 0; text-align: center; }
    footer .brand { font-weight: 800; font-size: 1.2rem; color: #fff; margin-bottom: 0.4rem; }
    footer .brand span { color: #7ec8ff; }

    @media (max-width: 768px) {
      .hero { min-height: auto; padding: 130px 0 70px; }
      section { padding: 60px 0; }
      .price-card.featured { transform: none; }
    }
.kitt-burger-wrapper {
      position: relative;
      display: none; /* En PC se oculta */
      width: 46px;
      height: 44px;
      border-radius: 10px;
      overflow: hidden;
      padding: 2px;
      background: #000;
      /* Al terminar las 2 vueltas (4.8s) se activa el borde rojo estático */
      animation: kittFinishBorder 0.6s ease forwards;
      animation-delay: 4.8s;
    }

    /* Estela de luz roja que corre por el contorno */
    .kitt-burger-wrapper::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: conic-gradient(
        transparent 0deg,
        transparent 140deg,
        #ff0033 180deg,
        #ff6680 200deg,
        #ffffff 205deg,
        #ff0033 210deg,
        transparent 250deg,
        transparent 360deg
      );
      /* 2.4s (ritmo pausado), 2 vueltas completas y se desvanece suavemente */
      animation: kittScanner 2.4s linear 2 normal forwards, kittFadeOut 0.4s ease 4.8s forwards;
    }

    @keyframes kittScanner {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    @keyframes kittFadeOut {
      to { opacity: 0; }
    }

    @keyframes kittFinishBorder {
      to {
        background: #ff0033;
        box-shadow: 0 0 10px rgba(255, 0, 51, 0.45);
      }
    }

    .kitt-burger-btn {
      position: relative;
      z-index: 1;
      width: 100%;
      height: 100%;
      background: #11141a;
      border: none;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.45rem;
      cursor: pointer;
      outline: none;
      transition: background 0.2s ease;
    }

    .kitt-burger-btn:hover {
      background: #1c222c;
    }

    /* Menú desplegable móvil */
    .mobile-nav-collapse {
      background: #ffffff;
      border-bottom: 2px solid #eaedf3;
      padding: 1rem 1.25rem 1.4rem;
      box-shadow: 0 12px 24px rgba(0,0,0,0.08);
    }
    .mobile-nav-links a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.75rem 0.5rem;
      color: #1e293b;
      font-weight: 600;
      text-decoration: none;
      border-bottom: 1px solid #f1f5f9;
      font-size: 1rem;
    }
    .mobile-nav-links a:hover {
      color: var(--accent, #0d6efd);
    }
    .mobile-nav-btn {
      display: block;
      margin-top: 1rem;
      background: #dc3545;
      color: #fff !important;
      text-align: center;
      font-weight: 700 !important;
      border-radius: 8px;
      padding: 0.75rem !important;
      border-bottom: none !important;
      box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
    }

    @media (max-width: 991.98px) {
      .kitt-burger-wrapper {
        display: inline-block;
      }
      .desktop-nav-btn {
        display: none !important;
      }
    }

    /* ========================================================
       BANNER VUELTA AL COLE & BOTÓN GIGANTE COMPRAR
       ======================================================== */
    .promo-banner-card {
      position: relative;
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      border: 2px solid rgba(255, 209, 102, 0.4);
      border-radius: 24px;
      padding: 3rem 2.2rem;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
      overflow: hidden;
    }

    .promo-badge-top {
      position: absolute;
      top: 0;
      right: 2rem;
      background: #ffd166;
      color: #0f172a;
      font-weight: 800;
      font-size: 0.78rem;
      padding: 0.35rem 1rem;
      border-radius: 0 0 10px 10px;
      letter-spacing: 0.8px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    }

    .promo-price-box {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 18px;
      padding: 1.5rem;
      backdrop-filter: blur(10px);
    }

    .btn-comprar-glow {
      display: inline-block;
      width: 100%;
      background: linear-gradient(90deg, #ff0055 0%, #ff5500 100%);
      color: #ffffff !important;
      font-weight: 800;
      font-size: 1.05rem;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      padding: 1rem 1.4rem;
      border-radius: 50px;
      text-decoration: none;
      box-shadow: 0 0 20px rgba(255, 0, 85, 0.5);
      transition: all 0.3s ease;
    }

    .btn-comprar-glow:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 0 30px rgba(255, 85, 0, 0.75);
      filter: brightness(1.1);
    }

    @media (max-width: 991.98px) {
      .promo-banner-card {
        padding: 2.5rem 1.4rem 2rem;
      }
      .promo-badge-top {
        right: 50%;
        transform: translateX(50%);
        width: 85%;
        text-align: center;
      }
    }

    /* ========================================================
       FOOTER LEGAL (DISCRETO Y GRIS CLARITO)
       ======================================================== */
    .footer-legal {
      font-size: 0.8rem;
      color: #adb5bd;
      margin-top: 0.5rem;
    }
    .footer-legal a {
      color: #9ca3af !important;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .footer-legal a:hover {
      color: #e5e7eb !important;
      text-decoration: underline;
    }