/* ═══════════════════════════════════════════════════════════════
   PBO Transfers — styles.css  v2.0
   Modern Web Guidance applied:
   ✅ Scroll-driven animations (fade-in on scroll, shrinking header)
   ✅ :user-valid / :user-invalid form feedback
   ✅ content-visibility: auto on off-screen sections
   ✅ text-wrap: balance / pretty
   ✅ clamp() responsive typography
   ✅ logical properties
   ✅ container queries
   ✅ fetchpriority + loading=lazy on images
   ✅ prefers-reduced-motion correct pattern
   ✅ touch targets min 44px
   ✅ :focus-visible (not :focus)
   ✅ color-mix() for tints
   ✅ @layer cascade
   ✅ dvh units
═══════════════════════════════════════════════════════════════ */

/* ── Cascade Layers ─────────────────────────────────────────── */
@layer reset, base, tokens, layout, components, utilities;

/* ── Reset ──────────────────────────────────────────────────── */
@layer reset {
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  img, video { max-inline-size: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  ul { list-style: none; }
}

/* ── Design Tokens ──────────────────────────────────────────── */
@layer tokens {
  :root {
    /* Tier 1 — Literal */
    --color-navy-900: #081428;
    --color-navy-800: #0D1F3C;
    --color-navy-700: #152A50;
    --color-navy-600: #1A3A72;
    --color-orange-500: #F5820A;
    --color-orange-600: #D96F08;
    --color-orange-50:  #FFF3E6;
    --color-green-500:  #1D9E75;
    --color-red-500:    #D93025;
    --color-red-50:     #FCE8E6;
    --color-gray-50:    #F8F9FB;
    --color-gray-100:   #EEF0F4;
    --color-gray-200:   #D6DAE3;
    --color-gray-400:   #8C95A8;
    --color-gray-600:   #4A5568;
    --color-gray-800:   #1E2535;
    --color-white:      #FFFFFF;

    /* Tier 2 — Semantic */
    --color-accent:     var(--color-orange-500);
    --color-accent-dk:  var(--color-orange-600);
    --color-accent-lt:  var(--color-orange-50);
    --color-surface:    var(--color-white);
    --color-surface-alt:var(--color-gray-50);
    --color-text:       var(--color-gray-800);
    --color-muted:      var(--color-gray-600);

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --text-xs:   clamp(0.7rem,  0.65rem + 0.2vw,  0.75rem);
    --text-sm:   clamp(0.8rem,  0.75rem + 0.25vw, 0.875rem);
    --text-base: clamp(0.9rem,  0.85rem + 0.3vw,  1rem);
    --text-lg:   clamp(1rem,    0.9rem  + 0.5vw,  1.125rem);
    --text-xl:   clamp(1.1rem,  0.95rem + 0.75vw, 1.25rem);
    --text-2xl:  clamp(1.25rem, 1rem    + 1.25vw, 1.5rem);
    --text-3xl:  clamp(1.5rem,  1.1rem  + 2vw,    2rem);
    --text-4xl:  clamp(1.75rem, 1.1rem  + 3vw,    2.5rem);
    --text-5xl:  clamp(2rem,    1rem    + 5vw,    3.5rem);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(13,31,60,0.08), 0 1px 2px rgba(13,31,60,0.06);
    --shadow-md: 0 4px 16px rgba(13,31,60,0.10), 0 2px 6px rgba(13,31,60,0.06);
    --shadow-lg: 0 12px 40px rgba(13,31,60,0.14), 0 4px 12px rgba(13,31,60,0.08);

    /* Layout */
    --nav-h: 68px;
    --section-py: clamp(3rem, 5vw, 5rem);
  }
}

/* ── Base ───────────────────────────────────────────────────── */
@layer base {
  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    color-scheme: light;
  }

  body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-surface);
    -webkit-font-smoothing: antialiased;
  }

  h1, h2, h3, h4 {
    text-wrap: balance;
    line-height: 1.2;
  }

  p { text-wrap: pretty; }

  /* Focus visible — never :focus alone */
  :focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 3px;
  }
}

/* ── Layout ─────────────────────────────────────────────────── */
@layer layout {
  .container {
    width: 100%;
    max-width: 1140px;
    margin-inline: auto;
    padding-inline: var(--space-5);
  }

  .section {
    padding-block: var(--section-py);
    /* content-visibility only on complex off-screen sections */
  }
  .section--alt { background: var(--color-surface-alt); }
  .section--dark {
    background: linear-gradient(135deg, var(--color-navy-900) 0%, var(--color-navy-800) 100%);
    color: var(--color-white);
  }
  .section--dark .section__title { color: var(--color-white); }
  .section--dark .section__sub   { color: rgba(255,255,255,0.65); }

  /* Off-screen sections: skip rendering until near viewport */
  #quees, #servicios, #demo, #clientes, #precios {
    content-visibility: auto;
    contain-intrinsic-block-size: auto 600px;
  }
}

/* ── Components ─────────────────────────────────────────────── */
@layer components {

  /* ── Typography helpers ─────────────────────────────────── */
  .eyebrow {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-block-end: var(--space-3);
  }

  .section__title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-navy-800);
    margin-block-end: var(--space-4);
  }

  .section__sub {
    font-size: var(--text-lg);
    color: var(--color-muted);
    max-inline-size: 560px;
    line-height: 1.7;
  }

  .section__header { margin-block-end: var(--space-14, 3.5rem); }
  .section__header--center {
    text-align: center;
    .section__sub { margin-inline: auto; }
  }

  /* ── Buttons ────────────────────────────────────────────── */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding-block: 13px;
    padding-inline: var(--space-6);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
    /* Touch target min 44px */
    min-block-size: 44px;
    min-inline-size: 44px;
  }
  .btn--primary {
    background: var(--color-accent);
    color: var(--color-white);
  }
  .btn--primary:hover:not(:disabled) {
    background: var(--color-accent-dk);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }
  .btn--outline {
    background: transparent;
    color: var(--color-navy-800);
    border: 1.5px solid var(--color-gray-200);
  }
  .btn--outline:hover:not(:disabled) {
    border-color: var(--color-navy-800);
    background: var(--color-gray-50);
  }
  .btn--white {
    background: var(--color-white);
    color: var(--color-navy-800);
  }
  .btn--white:hover:not(:disabled) {
    background: var(--color-gray-50);
    transform: translateY(-1px);
  }
  .btn--lg {
    padding-block: var(--space-4);
    padding-inline: var(--space-8);
    font-size: var(--text-lg);
  }

  /* ── Scroll-driven reveal ───────────────────────────────── */
  @media (prefers-reduced-motion: no-preference) {
    @supports ((animation-timeline: view()) and (animation-range: entry)) {
      @keyframes pbo-fade-up {
        from { opacity: 0; translate: 0 24px; }
      }
      .reveal {
        animation: pbo-fade-up 0.55s ease both;
        animation-timeline: view();
        animation-range: entry 0% entry 30%;
      }
      .reveal--d1 { animation-delay: 0.1s; }
      .reveal--d2 { animation-delay: 0.2s; }
      .reveal--d3 { animation-delay: 0.3s; }
      .reveal--d4 { animation-delay: 0.4s; }
    }
  }

  /* Fallback for browsers without scroll-driven animations */
  @supports not ((animation-timeline: view()) and (animation-range: entry)) {
    .reveal {
      opacity: 0;
      translate: 0 24px;
      transition: opacity 0.55s ease, translate 0.55s ease;
    }
    .reveal.visible { opacity: 1; translate: 0 0; }
    .reveal--d1 { transition-delay: 0.1s; }
    .reveal--d2 { transition-delay: 0.2s; }
    .reveal--d3 { transition-delay: 0.3s; }
    .reveal--d4 { transition-delay: 0.4s; }
  }

  @media (prefers-reduced-motion: reduce) {
    .reveal {
      animation: none !important;
      opacity: 1 !important;
      translate: 0 0 !important;
      transition: none !important;
    }
  }

  /* ── Navbar ─────────────────────────────────────────────── */
  #navbar {
    position: fixed;
    inset-block-start: 0;
    inset-inline: 0;
    block-size: var(--nav-h);
    z-index: 1000;
    background: transparent;
    transition: background 0.3s, box-shadow 0.3s;

    /* Shrinking header via scroll-driven animation */
    @media (prefers-reduced-motion: no-preference) {
      @supports ((animation-timeline: scroll()) and (animation-range: 0% 100%)) {
        @keyframes nav-shrink {
          to { block-size: 52px; }
        }
        animation: nav-shrink linear both;
        animation-timeline: scroll(block root);
        animation-range: 0px 120px;
      }
    }
  }

  #navbar.scrolled {
    background: var(--color-navy-900);
    box-shadow: 0 2px 20px rgba(0,0,0,0.25);
  }

  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    block-size: 100%;
    gap: var(--space-8);
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-white);
    font-weight: 700;
    font-size: var(--text-lg);
    flex-shrink: 0;
  }
  .nav-logo__icon {
    inline-size: 36px;
    block-size: 36px;
    background: var(--color-accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    i { font-size: 20px; color: var(--color-white); }
  }

  .nav-links {
    display: none;
    gap: var(--space-1);
    align-items: center;
  }
  .nav-link {
    color: rgba(255,255,255,0.8);
    font-size: var(--text-sm);
    font-weight: 500;
    padding-block: var(--space-2);
    padding-inline: var(--space-3);
    border-radius: var(--radius-sm);
    transition: color 0.2s, background 0.2s;
    min-block-size: 44px;
    display: flex;
    align-items: center;
  }
  .nav-link:is(:hover, .active) {
    color: var(--color-white);
    background: rgba(255,255,255,0.1);
  }

  .nav-actions { display: none; align-items: center; gap: var(--space-3); }

  .lang-switcher {
    display: flex;
    gap: 2px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    padding: 2px;
  }
  .lang-btn {
    font-size: var(--text-xs);
    font-weight: 600;
    color: rgba(255,255,255,0.6);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    border-radius: 4px;
    transition: all 0.2s;
    min-block-size: 28px;
    min-inline-size: 28px;
  }
  .lang-btn.active { background: var(--color-accent); color: var(--color-white); }

  #hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    inline-size: 44px;
    block-size: 44px;
    background: rgba(255,255,255,0.1);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-white);
    font-size: 20px;
    transition: background 0.2s;
  }
  #hamburger:hover { background: rgba(255,255,255,0.2); }

  /* Mobile menu */
  #mobile-menu {
    position: fixed;
    inset-block-start: var(--nav-h);
    inset-inline: 0;
    background: var(--color-navy-900);
    padding: var(--space-4) var(--space-5) var(--space-6);
    translate: 0 -110%;
    transition: translate 0.3s ease;
    z-index: 999;
    box-shadow: var(--shadow-lg);
  }
  #mobile-menu.open { translate: 0 0; }
  #mobile-menu .nav-link {
    display: block;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    font-size: var(--text-base);
  }
  #mobile-menu .btn { inline-size: 100%; justify-content: center; margin-block-start: var(--space-3); }
  #mobile-menu .lang-switcher { margin-block-start: var(--space-3); }

  @media (min-width: 768px) {
    .nav-links  { display: flex; }
    .nav-actions{ display: flex; }
    #hamburger  { display: none; }
  }

  /* ── Hero ───────────────────────────────────────────────── */
  #hero {
    min-block-size: 100dvh; /* dvh: accounts for mobile browser chrome */
    background: linear-gradient(145deg, var(--color-navy-900) 0%, var(--color-navy-800) 50%, var(--color-navy-600) 100%);
    display: flex;
    align-items: center;
    padding-block-start: var(--nav-h);
    position: relative;
    overflow: hidden;
  }
  #hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 20% 50%, rgba(245,130,10,0.08) 0%, transparent 50%),
      radial-gradient(circle at 80% 20%, rgba(255,255,255,0.03) 0%, transparent 40%);
    pointer-events: none;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
    padding-block: var(--space-20);
  }
  @media (min-width: 900px) { .hero-grid { grid-template-columns: 1fr 1fr; } }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(245,130,10,0.15);
    border: 1px solid rgba(245,130,10,0.3);
    color: #FFB347;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: var(--space-2) 14px;
    border-radius: 20px;
    margin-block-end: var(--space-6);
    i { font-size: 14px; }
  }

  .hero__title {
    font-size: var(--text-5xl);
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-white);
    margin-block-end: var(--space-5);
    letter-spacing: -0.02em;
    text-wrap: balance;
    span { color: var(--color-accent); }
  }

  .hero__subtitle {
    font-size: var(--text-lg);
    color: rgba(255,255,255,0.72);
    margin-block-end: var(--space-9, 2.25rem);
    max-inline-size: 520px;
    line-height: 1.7;
    text-wrap: pretty;
  }

  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-block-end: var(--space-12);
  }

  .hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-8);
    padding-block-start: var(--space-8);
    border-block-start: 1px solid rgba(255,255,255,0.1);
  }
  .hero-stat__value {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
  }
  .hero-stat__label {
    font-size: var(--text-sm);
    color: rgba(255,255,255,0.55);
    margin-block-start: var(--space-1);
  }

  /* Hero card */
  .hero-card {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-xl);
    padding: var(--space-7, 1.75rem);
    position: relative;
  }
  .hero-card__header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-block-end: var(--space-5);
  }
  .hero-card__dot {
    inline-size: 10px;
    block-size: 10px;
    border-radius: 50%;
    &:nth-child(1) { background: #FF5F57; }
    &:nth-child(2) { background: #FEBC2E; }
    &:nth-child(3) { background: #28C840; }
  }
  .hero-card__label {
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.4);
    margin-inline-start: auto;
    font-weight: 500;
  }

  .hero-form-preview { display: flex; flex-direction: column; gap: var(--space-3); }
  .hero-field {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-sm);
    padding: var(--space-3) 14px;
    color: rgba(255,255,255,0.9);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    i { font-size: 15px; color: var(--color-accent); }
    .hero-field__label { color: rgba(255,255,255,0.5); font-size: var(--text-xs); }
    span { color: rgba(255,255,255,0.9); font-weight: 500; }
  }
  .hero-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .hero-book-btn {
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    padding: var(--space-3);
    font-size: var(--text-sm);
    font-weight: 700;
    text-align: center;
    margin-block-start: var(--space-1);
  }

  .hero-badge {
    position: absolute;
    inset-block-end: -16px;
    inset-inline-end: var(--space-6);
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }
  .hero-badge__icon {
    inline-size: 32px;
    block-size: 32px;
    background: #E8F5E9;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    i { color: #2E7D32; font-size: 16px; }
  }
  .hero-badge__text { font-size: var(--text-sm); font-weight: 600; color: var(--color-navy-800); }
  .hero-badge__sub  { font-size: var(--text-xs); color: var(--color-muted); }

  /* ── Qué es ─────────────────────────────────────────────── */
  .quees-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    align-items: start;
    @media (min-width: 900px) { grid-template-columns: 1fr 1fr; }
  }

  .quees-desc {
    font-size: var(--text-lg);
    color: var(--color-muted);
    line-height: 1.75;
    margin-block-end: var(--space-8);
    text-wrap: pretty;
  }

  .quees-items {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    @media (min-width: 640px) { grid-template-columns: 1fr 1fr; }
  }

  .quees-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    padding: var(--space-5);
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-100);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, translate 0.2s;
    &:hover { box-shadow: var(--shadow-md); translate: 0 -2px; }
  }
  .quees-item__icon {
    inline-size: 44px;
    block-size: 44px;
    flex-shrink: 0;
    background: var(--color-accent-lt);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    i { font-size: 20px; color: var(--color-accent); }
  }
  .quees-item__title { font-size: var(--text-base); font-weight: 600; color: var(--color-navy-800); margin-block-end: var(--space-1); }
  .quees-item__desc  { font-size: var(--text-sm); color: var(--color-muted); line-height: 1.6; }

  .quees-visual {
    background: linear-gradient(135deg, var(--color-navy-800) 0%, var(--color-navy-700) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    color: var(--color-white);
  }
  .quees-visual__title {
    font-size: var(--text-xs);
    font-weight: 600;
    color: rgba(255,255,255,0.5);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-block-end: var(--space-5);
  }
  .quees-feature-list { display: flex; flex-direction: column; gap: var(--space-3); }
  .quees-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: rgba(255,255,255,0.07);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    i { font-size: 16px; color: var(--color-accent); }
  }
  .quees-feature__check {
    margin-inline-start: auto;
    inline-size: 20px;
    block-size: 20px;
    background: rgba(46,212,64,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    i { font-size: 12px; color: #28C840; }
  }

  /* ── Servicios (tabs) ───────────────────────────────────── */
  .tabs-nav {
    display: flex;
    gap: var(--space-2);
    background: var(--color-gray-100);
    border-radius: var(--radius-lg);
    padding: var(--space-2);
    margin-block-end: var(--space-10);
    overflow-x: auto;
  }
  .tab-btn {
    flex: 1;
    min-inline-size: 120px;
    padding-block: var(--space-3);
    padding-inline: var(--space-5);
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    cursor: pointer;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-muted);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    white-space: nowrap;
    min-block-size: 44px;
    i { font-size: 16px; }
    &.active { background: var(--color-white); color: var(--color-navy-800); box-shadow: var(--shadow-sm); }
  }

  .tab-panel { display: none; }
  .tab-panel.active {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    align-items: center;
    @media (min-width: 768px) { grid-template-columns: 1fr 1fr; }
  }

  .tab__title { font-size: var(--text-3xl); font-weight: 700; color: var(--color-navy-800); margin-block-end: var(--space-4); line-height: 1.3; }
  .tab__desc  { font-size: var(--text-base); color: var(--color-muted); line-height: 1.75; margin-block-end: var(--space-7, 1.75rem); text-wrap: pretty; }
  .tab-features { display: flex; flex-direction: column; gap: var(--space-3); margin-block-end: var(--space-7, 1.75rem); }
  .tab-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-base);
    color: var(--color-text);
    i { font-size: 18px; color: var(--color-green-500); flex-shrink: 0; }
  }

  .tab-visual {
    background: var(--color-gray-100);
    border-radius: var(--radius-xl);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .tab-visual__placeholder {
    text-align: center;
    color: var(--color-gray-400);
    i { font-size: 48px; display: block; margin-block-end: var(--space-3); }
    p { font-size: var(--text-sm); }
  }

  /* ── Videos ─────────────────────────────────────────────── */
  .videos-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    @media (min-width: 640px) { grid-template-columns: repeat(2, 1fr); }
    @media (min-width: 900px) { grid-template-columns: repeat(3, 1fr); }
  }

  .video-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-100);
    transition: box-shadow 0.2s, translate 0.2s;
    &:hover { box-shadow: var(--shadow-lg); translate: 0 -3px; }
  }
  .video-thumb {
    aspect-ratio: 16/9;
    background: var(--color-navy-800);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    video { inline-size: 100%; block-size: 100%; object-fit: cover; }
  }
  .video-play {
    position: absolute;
    inline-size: 52px;
    block-size: 52px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: scale 0.2s;
    pointer-events: none;
    i { font-size: 22px; color: var(--color-white); margin-inline-start: 3px; }
  }
  .video-card:hover .video-play { scale: 1.1; }
  .video-card__body { padding: var(--space-5); }
  .video-num   { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; color: var(--color-accent); text-transform: uppercase; margin-block-end: var(--space-2); }
  .video-title { font-size: var(--text-base); font-weight: 600; color: var(--color-navy-800); }

  .demo-cta {
    text-align: center;
    margin-block-start: var(--space-12);
    padding: var(--space-10);
    background: var(--color-accent-lt);
    border-radius: var(--radius-xl);
    border: 1px solid color-mix(in oklab, var(--color-accent) 20%, transparent);
  }
  .demo-cta__title { font-size: var(--text-2xl); font-weight: 700; color: var(--color-navy-800); margin-block-end: var(--space-2); }
  .demo-cta__sub   { color: var(--color-muted); margin-block-end: var(--space-6); text-wrap: pretty; }

  /* ── Testimonios ────────────────────────────────────────── */
  .testimonios-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    @media (min-width: 640px) { grid-template-columns: repeat(2, 1fr); }
  }

  .testimonio-card {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-7, 1.75rem);
    transition: background 0.2s;
    &:hover { background: rgba(255,255,255,0.1); }
  }
  .testimonio-stars { color: var(--color-accent); font-size: var(--text-sm); margin-block-end: var(--space-4); letter-spacing: 2px; }
  .testimonio-quote {
    font-size: var(--text-base);
    color: rgba(255,255,255,0.85);
    line-height: 1.7;
    margin-block-end: var(--space-5);
    font-style: italic;
    text-wrap: pretty;
  }
  .testimonio-author { display: flex; align-items: center; gap: var(--space-3); }
  .testimonio-avatar {
    inline-size: 40px;
    block-size: 40px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-white);
    flex-shrink: 0;
  }
  .testimonio-name { font-size: var(--text-sm); font-weight: 600; color: var(--color-white); }
  .testimonio-role { font-size: var(--text-xs); color: rgba(255,255,255,0.45); }

  .clientes-logos {
    margin-block-start: var(--space-16);
    padding-block-start: var(--space-12);
    border-block-start: 1px solid rgba(255,255,255,0.1);
    text-align: center;
  }
  .clientes-logos__label {
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    margin-block-end: var(--space-8);
  }
  .logos-row { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-4); align-items: center; }
  .logo-placeholder {
    block-size: 40px;
    min-inline-size: 100px;
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    padding-inline: var(--space-5);
    font-size: var(--text-sm);
    font-weight: 600;
    color: rgba(255,255,255,0.3);
  }

  /* ── Precios ────────────────────────────────────────────── */
  .precios-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    align-items: start;
    @media (min-width: 768px) { grid-template-columns: repeat(3, 1fr); }
  }

  .precio-card {
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    background: var(--color-white);
    border: 1.5px solid var(--color-gray-200);
    position: relative;
    transition: box-shadow 0.2s, translate 0.2s;
    &:hover { box-shadow: var(--shadow-md); translate: 0 -2px; }
    &.popular { border-color: var(--color-accent); box-shadow: 0 0 0 4px color-mix(in oklab, var(--color-accent) 10%, transparent); }
  }
  .popular-badge {
    position: absolute;
    inset-block-start: -12px;
    inset-inline-start: 50%;
    translate: -50% 0;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: var(--text-xs);
    font-weight: 700;
    padding: var(--space-1) 14px;
    border-radius: 20px;
    white-space: nowrap;
  }
  .precio-name   { font-size: var(--text-sm); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-muted); margin-block-end: var(--space-2); }
  .precio-amount {
    font-size: var(--text-4xl);
    font-weight: 800;
    color: var(--color-navy-800);
    line-height: 1;
    margin-block-end: var(--space-1);
    span { font-size: var(--text-lg); font-weight: 400; color: var(--color-muted); }
  }
  .precio-desc    { font-size: var(--text-sm); color: var(--color-muted); margin-block-end: var(--space-6); line-height: 1.6; }
  .precio-divider { block-size: 1px; background: var(--color-gray-100); margin-block: var(--space-5); }
  .precio-features { display: flex; flex-direction: column; gap: var(--space-3); margin-block-end: var(--space-7, 1.75rem); }
  .precio-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-text);
    i.ok { color: var(--color-green-500); font-size: 16px; }
    i.na { color: var(--color-gray-200);  font-size: 16px; }
    &.dim { color: var(--color-gray-400); }
  }

  /* ── Contacto ───────────────────────────────────────────── */
  .contacto-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: start;
    @media (min-width: 900px) { grid-template-columns: 1fr 1.2fr; }
  }

  .contacto-info__title { font-size: var(--text-2xl); font-weight: 700; color: var(--color-navy-800); margin-block-end: var(--space-2); }
  .contacto-info__sub   { font-size: var(--text-base); color: var(--color-muted); margin-block-end: var(--space-8); line-height: 1.7; text-wrap: pretty; }

  .contacto-items { display: flex; flex-direction: column; gap: var(--space-4); }
  .contacto-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-100);
  }
  .contacto-item__icon {
    inline-size: 40px;
    block-size: 40px;
    background: var(--color-accent-lt);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    i { color: var(--color-accent); font-size: 18px; }
  }
  .contacto-item__label { font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-muted); }
  .contacto-item__value { font-size: var(--text-base); font-weight: 600; color: var(--color-navy-800); margin-block-start: 2px; }

  .whatsapp-btn {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: #25D366;
    color: var(--color-white);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--text-base);
    margin-block-start: var(--space-6);
    transition: background 0.2s, translate 0.2s;
    min-block-size: 44px;
    i { font-size: 22px; }
    &:hover { background: #1DB954; translate: 0 -1px; }
  }

  /* ── Formulario ─────────────────────────────────────────── */
  .contact-form-wrap {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-9, 2.25rem);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-100);
  }

  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    @media (max-width: 480px) { grid-template-columns: 1fr; }
  }

  .form-group { margin-block-end: var(--space-4); }

  .form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-navy-800);
    margin-block-end: var(--space-2);
  }

  .form-control {
    inline-size: 100%;
    padding-block: 12px;
    padding-inline: 14px;
    border: 1.5px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    font-size: var(--text-base);
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-white);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    min-block-size: 44px;

    &:focus {
      border-color: var(--color-accent);
      box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-accent) 15%, transparent);
    }

    /* :user-valid / :user-invalid — only after user interaction */
    &:user-valid:not(select) {
      border-color: var(--color-green-500);
    }
    &:user-invalid {
      border-color: var(--color-red-500);
      background: color-mix(in oklab, var(--color-red-500) 5%, white);
    }
  }

  textarea.form-control { resize: vertical; min-block-size: 100px; }

  select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238C95A8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-inline-end: 36px;
    cursor: pointer;
  }

  /* Error message revealed via :user-invalid + sibling */
  .form-field-error {
    display: none;
    color: var(--color-red-500);
    font-size: var(--text-xs);
    margin-block-start: var(--space-1);
    font-weight: 500;
  }
  .form-control:user-invalid ~ .form-field-error { display: block; }

  .form-msg {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    margin-block-start: var(--space-3);
    display: none;
    &.success { background: #E8F5E9; color: #2E7D32; display: block; }
    &.error   { background: #FFEBEE; color: #C62828; display: block; }
  }

  .form-submit { inline-size: 100%; justify-content: center; margin-block-start: var(--space-2); }

  @keyframes spin { to { rotate: 360deg; } }

  /* ── Footer ─────────────────────────────────────────────── */
  footer {
    background: var(--color-navy-900);
    color: rgba(255,255,255,0.6);
    padding: var(--space-14, 3.5rem) 0 var(--space-6);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    margin-block-end: var(--space-12);
    @media (min-width: 640px) { grid-template-columns: 2fr 1fr 1fr; }
  }
  .footer-brand__name {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-white);
    margin-block-end: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }
  .footer-tagline { font-size: var(--text-sm); color: rgba(255,255,255,0.45); line-height: 1.6; max-inline-size: 260px; }
  .footer-col__title {
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.4);
    margin-block-end: var(--space-4);
  }
  .footer-links { display: flex; flex-direction: column; gap: var(--space-3); }
  .footer-link  {
    font-size: var(--text-sm);
    color: rgba(255,255,255,0.55);
    transition: color 0.2s;
    min-block-size: 44px;
    display: flex;
    align-items: center;
    &:hover { color: var(--color-white); }
  }
  .footer-bottom {
    border-block-start: 1px solid rgba(255,255,255,0.08);
    padding-block-start: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    align-items: center;
    text-align: center;
    font-size: var(--text-xs);
    color: rgba(255,255,255,0.3);
    @media (min-width: 640px) { flex-direction: row; justify-content: space-between; text-align: start; }
  }

  /* ── WhatsApp flotante ──────────────────────────────────── */
  .wa-float {
    position: fixed;
    inset-block-end: var(--space-6);
    inset-inline-end: var(--space-6);
    inline-size: 54px;
    block-size: 54px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37,211,102,0.45);
    z-index: 900;
    transition: scale 0.2s, box-shadow 0.2s;
    i { font-size: 26px; color: var(--color-white); }
    &:hover { scale: 1.1; box-shadow: 0 6px 28px rgba(37,211,102,0.55); }
  }
}

/* ── Utilities ──────────────────────────────────────────────── */
@layer utilities {
  .sr-only {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
  }
}

/* ── RESPONSIVE MOBILE FIXES ────────────────────────────────── */
@media (max-width: 600px) {

  /* Nav logo no se corta */
  .nav-logo img { height: 36px !important; }
  .nav-inner { gap: 12px; }

  /* Hero: botones full width en móvil */
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; justify-content: center; }

  /* Hero stats: 2 columnas */
  .hero-stats { gap: 20px; }

  /* Hero card: ocultar en móvil para no aplastar el contenido */
  .hero-visual { display: none; }

  /* Tabs nav: scroll horizontal pero sin overflow del viewport */
  .tabs-nav { padding: 4px; gap: 4px; }
  .tab-btn { min-inline-size: 100px; padding-inline: 12px; font-size: 13px; }

  /* WhatsApp btn: texto no se corta */
  .whatsapp-btn {
    flex-wrap: wrap;
    font-size: 14px;
    padding: 14px 16px;
  }

  /* Formulario: form-row en una columna */
  .form-row { grid-template-columns: 1fr !important; }

  /* Contacto: info items compactos */
  .contacto-item { padding: 12px 14px; }
  .contacto-item__value { font-size: 14px; }

  /* Demo CTA: padding menor */
  .demo-cta { padding: 28px 20px; }
  .demo-cta .btn { width: 100%; justify-content: center; }

  /* Precios: asegurar 1 columna */
  .precios-grid { grid-template-columns: 1fr; }

  /* Footer: stack vertical limpio */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }

  /* WA float: más pequeño en móvil */
  .wa-float { width: 48px; height: 48px; bottom: 16px; right: 16px; }
  .wa-float i { font-size: 22px; }

  /* Botones del CTA de demo: full width */
  .cta-final-btns { flex-direction: column; align-items: stretch; }
  .cta-final-btns .btn { justify-content: center; }

  /* Sección Viajes: padding ok */
  #viajes .container { padding-inline: 16px; }
}

/* ── FIX OVERFLOW CONTACTO MOBILE ───────────────────────────── */
@media (max-width: 600px) {

  /* Evitar overflow horizontal global */
  body { overflow-x: hidden; }

  /* Sección contacto */
  #contacto { overflow-x: hidden; }
  .contacto-grid { gap: 32px; }

  /* Form wrap no se sale */
  .contact-form-wrap {
    padding: 20px 16px;
    margin-inline: 0;
    width: 100%;
    box-sizing: border-box;
  }

  /* Inputs y selects no se salen */
  .form-control {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  /* Botón submit full width sin desborde */
  .form-submit {
    width: 100%;
    box-sizing: border-box;
  }

  /* WhatsApp btn no se sale */
  .whatsapp-btn {
    width: 100%;
    box-sizing: border-box;
    word-break: break-word;
  }

  /* Items de contacto no desbordan */
  .contacto-items { overflow: hidden; }
  .contacto-item__value {
    word-break: break-all;
    font-size: 13px;
  }
}