:root {
      --ati-dark: #1a1a2e;
      --ati-navy: #16213e;
      --ati-blue: #0f3460;
      --ati-accent: #e94560;
      --ati-electric: #00d4ff;
      --ati-gold: #f5a623;
      --surface: #f8fafc;
      --card-bg: #ffffff;
      --text-primary: #1a1a2e;
      --text-secondary: #64748b;
      --border: #e2e8f0;
      --shadow-soft: 0 4px 24px rgba(0,0,0,0.07);
      --shadow-card: 0 8px 40px rgba(15,52,96,0.12);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      font-family: 'Inter', sans-serif;
      background: var(--surface);
      color: var(--text-primary);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* ══════════════════════════════════════
       HERO SECTION — navbar transparente
       sobre imagen, igual que ATI
       ══════════════════════════════════════ */

    /* El hero ocupa su propia área, el header
       está posicionado ABSOLUTE sobre él */
    .hero-wrapper {
      position: relative;
      overflow: hidden;
    }
    .hero-strip {
      position: relative;
      min-height: 340px;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      background: linear-gradient(160deg, #0d1b3e 0%, #0a2a52 45%, #0d4a6e 100%);
    }
    /* Overlay oscuro con gradiente radial como en las screenshots */
    .hero-strip::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 60% at 60% 40%, rgba(0,80,140,0.55) 0%, transparent 70%),
        radial-gradient(ellipse 50% 80% at 10% 50%, rgba(5,20,60,0.7) 0%, transparent 60%);
      z-index: 1;
    }

    .hero-content {
      position: relative;
      z-index: 3;
      text-align: center;
      padding-top: 140px; /* espacio para el navbar flotante */
      padding-bottom: 60px;
    }
    .hero-eyebrow {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.72rem;
      font-weight: 600;
      letter-spacing: 4px;
      color: #00d4ff;
      text-transform: uppercase;
      margin-bottom: 1rem;
    }
    .hero-title {
      font-family: 'Montserrat', sans-serif;
      font-weight: 800;
      font-size: clamp(2rem, 5vw, 3rem);
      color: #fff;
      line-height: 1.15;
      margin-bottom: 0.5rem;
    }
    .hero-title span {
      color: #00d4ff;
    }
    .hero-sub {
      color: rgba(255,255,255,0.6);
      font-size: 1rem;
      max-width: 500px;
      margin: 0 auto;
    }

    /* ── BREADCRUMB — ATI exact ── */
    .breadcrumb-section {
      padding: 15px 0;
      background: #fff;
      margin-top: 0 !important;
      position: relative;
      z-index: 5;
    }
    .breadcrumb-section .breadcrumb {
      margin: 0;
      padding: 0;
      background: transparent;
      margin-left: 20px;
    }
    .breadcrumb-section .breadcrumb-item a {
      color: #1b2245;
      text-decoration: none;
      font-weight: 700;
    }
    .breadcrumb-section .breadcrumb-item a:hover { color: #2c3e5f; }
    .breadcrumb-section .breadcrumb-item.active { color: #555; font-weight: 500; }
    .breadcrumb-section .breadcrumb-item + .breadcrumb-item::before {
      content: '/';
      color: #999;
    }

    /* ── MAIN CONTENT ── */
    .main-content {
      flex: 1;
      padding: 3rem 0 4rem;
    }

    /* ── CARDS ── */
    .info-card {
      background: #ffffff;
      border-radius: 16px;
      padding: 2rem 2.2rem;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border);
      height: 100%;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      position: relative;
      overflow: hidden;
    }
    .info-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 4px;
      background: #c0392b;
    }
    .info-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 48px rgba(15,52,96,0.18);
    }

    .card-icon {
      width: 52px; height: 52px;
      border-radius: 14px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 1.2rem;
    }
    .card-icon.blue  { background: linear-gradient(135deg, #dbeafe, #bfdbfe); color: var(--ati-blue); }
    .card-icon.green { background: linear-gradient(135deg, #d1fae5, #a7f3d0); color: #059669; }
    .card-icon.amber { background: linear-gradient(135deg, #fef3c7, #fde68a); color: #d97706; }

    .card-title {
      font-family: 'Montserrat', sans-serif;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--text-primary);
      margin-bottom: 0.4rem;
    }
    .card-desc {
      color: var(--text-secondary);
      font-size: 0.88rem;
      line-height: 1.6;
      margin-bottom: 1.2rem;
    }
    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--ati-blue);
      font-weight: 600;
      font-size: 0.88rem;
      text-decoration: none;
      padding: 0.55rem 1.1rem;
      border: 1.5px solid var(--ati-blue);
      border-radius: 8px;
      transition: all 0.2s ease;
    }
    .card-link:hover {
      background: var(--ati-blue);
      color: #fff;
    }
    .card-link.green { color: #059669; border-color: #059669; }
    .card-link.green:hover { background: #059669; color: #fff; }
    .card-link i { font-size: 0.9rem; }

    /* ── FORM CARD ── */
    .form-card {
      background: var(--card-bg);
      border-radius: 20px;
      padding: 2.5rem;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border);
      position: relative;
      overflow: hidden;
    }
    .form-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--ati-blue), var(--ati-electric));
    }
    .section-label {
      font-family: 'Montserrat', sans-serif;
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: var(--ati-electric);
      display: block;
      margin-bottom: 0.4rem;
    }
    .section-heading {
      font-family: 'Montserrat', sans-serif;
      font-weight: 800;
      font-size: 1.6rem;
      color: var(--text-primary);
      margin-bottom: 0.3rem;
    }
    .section-sub {
      color: var(--text-secondary);
      font-size: 0.88rem;
      margin-bottom: 2rem;
    }

    .form-label {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 0.35rem;
      display: block;
    }
    .form-control {
      border: 1.5px solid var(--border);
      border-radius: 10px;
      padding: 0.65rem 0.9rem;
      font-size: 0.9rem;
      color: var(--text-primary);
      background: #f8fafc;
      transition: border-color 0.2s, box-shadow 0.2s;
      width: 100%;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--ati-blue);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(15,52,96,0.08);
    }
    textarea.form-control { resize: vertical; min-height: 130px; }

    .btn-submit {
      background: linear-gradient(135deg, var(--ati-blue), #1a5276);
      color: #fff;
      border: none;
      border-radius: 10px;
      padding: 0.8rem 2rem;
      font-family: 'Montserrat', sans-serif;
      font-weight: 700;
      font-size: 0.9rem;
      letter-spacing: 0.5px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.25s ease;
      box-shadow: 0 4px 16px rgba(15,52,96,0.3);
    }
    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(15,52,96,0.4);
    }

    /* ── FOOTER ── */
    footer {
      background: var(--ati-dark);
      padding: 2rem 0;
    }
    .footer-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 1rem;
      text-align: center;
    }
    .footer-logos {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .footer-logo-box {
      width: 50px; height: 50px;
      border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-family: 'Montserrat', sans-serif;
      font-weight: 900;
      font-size: 0.7rem;
      letter-spacing: 1px;
    }
    .footer-logo-prevebsa {
      background: linear-gradient(135deg, #f5a623, #e67e22);
      color: #fff;
    }
    .footer-logo-ati {
      background: linear-gradient(135deg, var(--ati-electric), var(--ati-blue));
      clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
      border-radius: 0;
    }
    .footer-text {
      color: rgba(255,255,255,0.45);
      font-size: 0.8rem;
    }
    .footer-text a { color: rgba(255,255,255,0.6); text-decoration: none; }
    .footer-text a:hover { color: var(--ati-electric); }

    /* ── DIVIDER ── */
    .section-divider {
      border: none;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--border), transparent);
      margin: 2.5rem 0;
    }

    /* ── SUPPORT IMAGE ── */
    .support-image-wrapper {
      position: relative;
      height: 100%;
      min-height: 480px;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .support-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center top;
      display: block;
      transition: transform 0.6s ease;
    }
    .support-image-wrapper:hover .support-image {
      transform: scale(1.04);
    }
    /* dark overlay gradient */
    .support-image-wrapper::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(15,52,96,0.6) 0%, transparent 50%);
      pointer-events: none;
    }
    .support-badge {
      position: absolute;
      bottom: 1.5rem;
      left: 1.5rem;
      right: 1.5rem;
      z-index: 2;
      background: rgba(255,255,255,0.12);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: 14px;
      padding: 1rem 1.2rem;
      display: flex;
      align-items: center;
      gap: 1rem;
      color: #fff;
    }
    .support-badge i {
      font-size: 1.8rem;
      color: #00d4ff;
      flex-shrink: 0;
    }
    .support-badge strong {
      display: block;
      font-family: 'Montserrat', sans-serif;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .support-badge span {
      font-size: 0.78rem;
      opacity: 0.8;
    }
    @media (max-width: 991px) {
      .support-image-wrapper { min-height: 320px; }
    }

    /* ── SUPPORT IMAGE ── */
    @media (max-width: 768px) {
      .hero-strip { padding: 2.5rem 0 2rem; }
      .form-card { padding: 1.5rem; }
    }

    /* ── ANIMATION ── */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(24px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    .fade-up { animation: fadeUp 0.55s ease forwards; }
    .delay-1 { animation-delay: 0.1s; opacity: 0; }
    .delay-2 { animation-delay: 0.2s; opacity: 0; }
    .delay-3 { animation-delay: 0.3s; opacity: 0; }
    .delay-4 { animation-delay: 0.4s; opacity: 0; }