:root {
    --primary-blue: #0077FF;
    --primary-dark: #28317A;
    --primary-light: #7AB8FF;
    --accent-green: #33E470;
    --secondary: #4E52BE;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-tertiary: #F1F5F9;
    --text-primary: #1E293B;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1);
    --transition-base: 250ms cubic-bezier(0.4,0,0.2,1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

    /* ── HERO ── */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 100%);
      padding: 50px 2rem 70px;
      text-align: center;
      overflow: hidden;
    }
    .hero-section::before {
      content: '';
      position: absolute; top: -40%; right: -10%;
      width: 700px; height: 700px;
      background: radial-gradient(circle, rgba(0,119,255,.07) 0%, transparent 70%);
      border-radius: 50%;
    }
    .section-tag {
      display: inline-block; padding: 6px 16px;
      background: rgba(0,119,255,.08); color: var(--primary-blue);
      border-radius: var(--radius-full); font-size: .8rem; font-weight: 600;
      text-transform: uppercase; letter-spacing: .5px; margin-bottom: 16px;
    }
    .hero-section h1 {
      font-family: 'Sora', sans-serif; font-size: 2.8rem; font-weight: 800;
      color: var(--primary-dark); margin-bottom: 14px; line-height: 1.15;
    }
    .gradient-text {
      background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-green) 100%);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    }
    .hero-section p { font-size: 1.1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto 32px; }

    /* Search */
    .search-wrap { max-width: 520px; margin: 0 auto; display: flex; gap: .5rem; }
    .search-wrap input {
      flex: 1; padding: .8rem 1.1rem; border-radius: var(--radius-full);
      border: 1.5px solid rgba(0,119,255,.25); font-size: 1rem; outline: none;
      background: #fff; transition: border-color var(--transition-base);
    }
    .search-wrap input:focus { border-color: var(--primary-blue); }
    .btn {
      display: inline-flex; align-items: center; gap: 8px;
      padding: .8rem 1.6rem; font-size: .95rem; font-weight: 600;
      text-decoration: none; border-radius: var(--radius-full);
      transition: all var(--transition-base); cursor: pointer; border: 2px solid transparent;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary) 100%);
      color: #fff; box-shadow: 0 4px 14px rgba(0,119,255,.3);
    }
    .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,119,255,.4); }

    /* ── LAYOUT ── */
    .contenedor { max-width: 860px; margin: 0 auto; padding: 3rem 1.2rem 5rem; }

    /* ── CHIPS ── */
    .categorias { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2.4rem; }
    .chip {
      padding: .4rem 1.1rem; border-radius: var(--radius-full);
      border: 1.5px solid var(--primary-blue); background: #fff;
      color: var(--primary-blue); cursor: pointer; font-size: .85rem; font-weight: 600;
      transition: all var(--transition-base);
    }
    .chip.activo, .chip:hover { background: var(--primary-blue); color: #fff; }

    /* ── FAQ ── */
    .faq-section h2 {
      font-family: 'Sora', sans-serif; font-size: 1.5rem; font-weight: 700;
      color: var(--text-primary); margin-bottom: 1.4rem;
    }
    .faq-grupo { margin-bottom: 2.2rem; }
    .faq-grupo-titulo {
      font-size: .72rem; text-transform: uppercase; letter-spacing: .1em;
      color: var(--text-muted); margin-bottom: .7rem; font-weight: 600;
      display: flex; align-items: center; gap: .5rem;
    }
    .faq-grupo-titulo::after {
      content: ''; flex: 1; height: 1px; background: var(--bg-tertiary);
    }

    .faq-item {
      background: #fff; border-radius: var(--radius-md); margin-bottom: .65rem;
      border: 1px solid rgba(0,0,0,.06);
      box-shadow: var(--shadow-sm); overflow: hidden;
      transition: box-shadow var(--transition-base), border-color var(--transition-base);
    }
    .faq-item:hover { box-shadow: var(--shadow-md); border-color: rgba(0,119,255,.18); }

    .faq-pregunta {
      width: 100%; background: none; border: none; text-align: left;
      padding: 1rem 1.2rem; font-size: .96rem; font-weight: 600; cursor: pointer;
      display: flex; justify-content: space-between; align-items: center;
      color: var(--text-primary); font-family: 'Inter', sans-serif;
    }
    .faq-pregunta .icono {
      width: 26px; height: 26px; border-radius: 50%;
      background: rgba(0,119,255,.08); color: var(--primary-blue);
      display: flex; align-items: center; justify-content: center;
      font-size: 1.1rem; font-weight: 400; flex-shrink: 0; margin-left: .6rem;
      transition: transform .3s, background var(--transition-base);
    }
    .faq-pregunta[aria-expanded="true"] .icono { transform: rotate(45deg); background: var(--primary-blue); color: #fff; }

    .faq-respuesta {
      max-height: 0; overflow: hidden;
      transition: max-height .35s ease, padding .25s;
      padding: 0 1.2rem; font-size: .93rem; color: var(--text-secondary); line-height: 1.7;
    }
    .faq-respuesta.abierta { max-height: 300px; padding: 0 1.2rem 1.1rem; }
    .faq-respuesta strong { color: var(--text-primary); }

    .sin-resultados {
      text-align: center; color: var(--text-muted); padding: 2.5rem;
      display: none; background: var(--bg-secondary); border-radius: var(--radius-lg);
    }

    /* ── CARDS GRID ── */
    .cards-grid {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
      gap: 1.2rem; margin-top: 3rem;
    }
    .card {
      background: #fff; border-radius: var(--radius-lg); padding: 1.5rem;
      border: 1px solid rgba(0,0,0,.06); box-shadow: var(--shadow-sm);
      transition: all var(--transition-base);
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0,119,255,.18); }
    .card-icon {
      width: 48px; height: 48px;
      background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary) 100%);
      border-radius: var(--radius-md); display: flex; align-items: center;
      justify-content: center; color: #fff; font-size: 1.3rem; margin-bottom: 1rem;
    }

    .card h3 {
        font-family: 'Sora', sans-serif; font-size: 1rem; font-weight: 600;
        color: var(--text-primary); margin-bottom: .5rem;
    }
    .card p {
        font-size: .88rem; color: var(--text-secondary);
        line-height: 1.6; margin-bottom: .8rem;
    }
    .card a {
        font-size: .88rem; color: var(--primary-blue);
        text-decoration: none; font-weight: 600;
    }
    .card a:hover {
        text-decoration: underline;
    }

    /* ── CONTACT SECTION ── */
    .contact-section {
        margin-top: 3.5rem;
    }
    .contact-section h2 {
      font-family: 'Sora', sans-serif; font-size: 1.5rem; font-weight: 700;
      color: var(--text-primary); margin-bottom: 1.2rem;
    }
    .form-grid {
        display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
    }
    .form-grid .full {
        grid-column: 1/-1;
    }
    label {
        font-size: .82rem; color: var(--text-muted); display: block; margin-bottom: .3rem; font-weight: 500;
    }

    input, select, textarea {
      width: 100%; padding: .72rem 1rem; border: 1.5px solid #E2E8F0;
      border-radius: var(--radius-sm); font-size: .93rem; outline: none;
      font-family: 'Inter', sans-serif; background: #fff;
      transition: border-color var(--transition-base), box-shadow var(--transition-base);
    }

    input:focus, select:focus, textarea:focus {
      border-color: var(--primary-blue);
      box-shadow: 0 0 0 3px rgba(0,119,255,.1);
    }

    textarea {
        resize: vertical; min-height: 110px;
    }

    .btn-enviar {
      margin-top: 1.1rem;
      background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary) 100%);
      color: #fff; border: none; border-radius: var(--radius-full);
      padding: .85rem 2.2rem; font-size: 1rem; font-weight: 600; cursor: pointer;
      box-shadow: 0 4px 14px rgba(0,119,255,.3);
      transition: all var(--transition-base);
    }
    .btn-enviar:hover {
        transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,119,255,.4);
    }

    .msg-exito {
      display: none; margin-top: 1rem;
      background: rgba(51,228,112,.1); border-left: 4px solid var(--accent-green);
      padding: 1rem 1.2rem; border-radius: var(--radius-sm);
      color: #1a6b3a; font-size: .93rem; font-weight: 500;
    }

    /* ── AVISO ── */
    .aviso {
      margin-top: 2.5rem;
      background: #FFFBEB; border-left: 4px solid #F59E0B;
      padding: 1rem 1.3rem; border-radius: var(--radius-sm);
      font-size: .9rem; color: #78350F; line-height: 1.6;
    }

    /* ── CONTACT INFO CARDS ── */
    .contact-card {
        display: flex; align-items: flex-start; gap: .9rem;
    }
    .contact-card .card-icon {
        flex-shrink: 0; margin-bottom: 0;
    }


    /* ── RESPONSIVE ── */
    @media (max-width: 768px) {
      .hero-section h1 { font-size: 2rem; }
      .form-grid { grid-template-columns: 1fr; }
      .form-grid .full { grid-column: 1; }
      .footer-container { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 480px) {
      .navbar { padding: .8rem 1rem; }
      .footer-container { grid-template-columns: 1fr; }
    }