/* ═══════════════════════════════════════════════════
       CSS — ESTILOS PRINCIPALES
       ═══════════════════════════════════════════════════ */

:root {
      /* Colores principales */
      --color-navy:       #0B1D3A; 
      --color-navy-light: #132B52;
      --color-white:      #FFFFFF;
      --color-warm-gray:  #F6F4F1;
      --color-gray-200:   #E8E6E3;
      --color-gray-400:   #B0ADA8;
      --color-gray-600:   #6B6862;
      --color-accent:     #C9A96E;
      --color-accent-hover:#B8944F;
      --color-error:      #C0392B;
      --color-success:    #27AE60;

      /* Tipografía */
      --font-serif:   'Playfair Display', Georgia, 'Times New Roman', serif;
      --font-sans:    'DM Sans', 'Segoe UI', Helvetica, Arial, sans-serif;

      /* Espaciado */
      --section-pad:  clamp(4rem, 8vw, 7rem);
      --container-max: 1140px;

      /* Transiciones */
      --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    /* ──────────────────────────────────────
       RESET & BASE
       ────────────────────────────────────── */
    *, *::before, *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.7;
      color: var(--color-navy);
      background: var(--color-white);
      overflow-x: hidden;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    /* ──────────────────────────────────────
       UTILIDADES
       ────────────────────────────────────── */
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 clamp(1.25rem, 4vw, 2.5rem);
    }

    .section-label {
      font-family: var(--font-sans);
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--color-accent);
      margin-bottom: 1rem;
    }

    .section-title {
      font-family: var(--font-serif);
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 600;
      line-height: 1.2;
      color: var(--color-navy);
      margin-bottom: 1.25rem;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--color-gray-600);
      max-width: 540px;
      line-height: 1.7;
    }

    /* Animaciones de entrada */
    .reveal {
      opacity: 0;
      transform: translateY(32px);
      transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* ──────────────────────────────────────
       HEADER / NAVEGACIÓN
       ────────────────────────────────────── */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      padding: 1.25rem 0;
      transition: background 0.4s, box-shadow 0.4s, padding 0.4s;
    }

    .header.scrolled {
      background: rgba(255,255,255,0.97);
      box-shadow: 0 1px 0 var(--color-gray-200);
      padding: 0.75rem 0;
      backdrop-filter: blur(12px);
    }

    .header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      font-family: var(--font-serif);
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--color-navy);
      letter-spacing: -0.01em;
    }

    .logo span {
      color: var(--color-accent);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 2.25rem;
      list-style: none;
    }

    .nav-links a {
      font-size: 0.85rem;
      font-weight: 500;
      letter-spacing: 0.04em;
      color: var(--color-gray-600);
      transition: color 0.3s;
    }

    .nav-links a:hover {
      color: var(--color-navy);
    }

    .btn-nav {
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      padding: 0.65rem 1.5rem;
      background: var(--color-navy);
      color: var(--color-white);
      border: none;
      border-radius: 2px;
      cursor: pointer;
      transition: background 0.3s, transform 0.2s;
    }

    .btn-nav:hover {
      background: var(--color-navy-light);
      transform: translateY(-1px);
    }

    /* Mobile menu */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--color-navy);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* ──────────────────────────────────────
       HERO
       ────────────────────────────────────── */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      align-items: center;
      background: var(--color-warm-gray);
      overflow: hidden;
    }

    .hero::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 120px;
      background: linear-gradient(to top, var(--color-white), transparent);
      z-index: 2;
    }

    .hero .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: clamp(2rem, 5vw, 4rem);
      align-items: center;
      padding-top: 6rem;
      padding-bottom: 4rem;
      position: relative;
      z-index: 3;
    }

    .hero-content {
      max-width: 520px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.72rem;
      font-weight: 600;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--color-accent);
      margin-bottom: 1.75rem;
      opacity: 0;
      animation: fadeUp 0.7s 0.3s var(--ease-out) forwards;
    }

    .hero-badge::before {
      content: '';
      width: 28px;
      height: 1px;
      background: var(--color-accent);
    }

    .hero h1 {
      font-family: var(--font-serif);
      font-size: clamp(2.5rem, 5vw, 3.75rem);
      font-weight: 700;
      line-height: 1.12;
      color: var(--color-navy);
      margin-bottom: 1.5rem;
      opacity: 0;
      animation: fadeUp 0.7s 0.5s var(--ease-out) forwards;
    }

    .hero h1 em {
      font-style: italic;
      color: var(--color-accent);
    }

    .hero-subtitle {
      font-size: 1.1rem;
      line-height: 1.75;
      color: var(--color-gray-600);
      margin-bottom: 2.5rem;
      max-width: 440px;
      opacity: 0;
      animation: fadeUp 0.7s 0.7s var(--ease-out) forwards;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      flex-wrap: wrap;
      opacity: 0;
      animation: fadeUp 0.7s 0.9s var(--ease-out) forwards;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-family: var(--font-sans);
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      padding: 1rem 2rem;
      background: var(--color-navy);
      color: var(--color-white);
      border: none;
      border-radius: 2px;
      cursor: pointer;
      transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
    }

    .btn-primary:hover {
      background: var(--color-navy-light);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(11,29,58,0.2);
    }

    .btn-primary svg {
      width: 14px;
      height: 14px;
      transition: transform 0.3s;
    }

    .btn-primary:hover svg {
      transform: translateX(3px);
    }

    .btn-ghost {
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--color-gray-600);
      border-bottom: 1px solid var(--color-gray-400);
      padding-bottom: 2px;
      transition: color 0.3s, border-color 0.3s;
    }

    .btn-ghost:hover {
      color: var(--color-navy);
      border-color: var(--color-navy);
    }

    .hero-image {
      position: relative;
      opacity: 0;
      animation: fadeIn 1s 0.6s var(--ease-out) forwards;
    }

    .hero-image img {
      width: 100%;
      height: 520px;
      object-fit: cover;
      border-radius: 4px;
    }

    .hero-image::before {
      content: '';
      position: absolute;
      top: -16px;
      right: -16px;
      width: 100%;
      height: 100%;
      border: 1px solid var(--color-accent);
      border-radius: 4px;
      z-index: -1;
      opacity: 0.4;
    }

    .hero-stats {
      display: flex;
      gap: 2.5rem;
      margin-top: 3rem;
      padding-top: 2rem;
      border-top: 1px solid var(--color-gray-200);
      opacity: 0;
      animation: fadeUp 0.7s 1.1s var(--ease-out) forwards;
    }

    .stat-item strong {
      display: block;
      font-family: var(--font-serif);
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--color-navy);
      line-height: 1;
    }

    .stat-item span {
      font-size: 0.78rem;
      color: var(--color-gray-600);
      letter-spacing: 0.02em;
    }

    /* ──────────────────────────────────────
       BARRA DE CONFIANZA
       ────────────────────────────────────── */
    .trust-bar {
      padding: 3rem 0;
      background: var(--color-white);
      border-bottom: 1px solid var(--color-gray-200);
    }

    .trust-bar .container {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: clamp(2rem, 5vw, 4rem);
      flex-wrap: wrap;
    }

    .trust-bar span {
      font-size: 0.72rem;
      font-weight: 600;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--color-gray-400);
      white-space: nowrap;
    }

    /* ──────────────────────────────────────
       SERVICIOS
       ────────────────────────────────────── */
    .services {
      padding: var(--section-pad) 0;
      background: var(--color-white);
    }

    .services-header {
      text-align: center;
      margin-bottom: 3.5rem;
    }

    .services-header .section-subtitle {
      margin: 0 auto;
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .service-card {
      position: relative;
      padding: 2.5rem 2rem;
      background: var(--color-warm-gray);
      border-radius: 4px;
      transition: transform 0.4s var(--ease-out), box-shadow 0.4s;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--color-accent);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.4s var(--ease-out);
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 48px rgba(11,29,58,0.08);
    }

    .service-card:hover::before {
      transform: scaleX(1);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--color-white);
      border-radius: 50%;
      margin-bottom: 1.5rem;
    }

    .service-icon svg {
      width: 22px;
      height: 22px;
      color: var(--color-navy);
    }

    .service-card h3 {
      font-family: var(--font-serif);
      font-size: 1.3rem;
      font-weight: 600;
      margin-bottom: 0.75rem;
      color: var(--color-navy);
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--color-gray-600);
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }

    .service-link {
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--color-accent);
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      transition: gap 0.3s;
    }

    .service-link:hover {
      gap: 0.7rem;
    }

    .service-link svg {
      width: 12px;
      height: 12px;
    }

    /* ──────────────────────────────────────
       SOBRE / DIFERENCIADOR
       ────────────────────────────────────── */
    .about {
      padding: var(--section-pad) 0;
      background: var(--color-warm-gray);
    }

    .about .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: clamp(3rem, 6vw, 5rem);
      align-items: center;
    }

    .about-image img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      border-radius: 4px;
    }

    .about-content .section-title {
      max-width: 420px;
    }

    .about-features {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
      margin-top: 2rem;
    }

    .about-feature {
      display: flex;
      gap: 1rem;
      align-items: flex-start;
    }

    .about-feature-icon {
      flex-shrink: 0;
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--color-white);
      border-radius: 50%;
      margin-top: 2px;
    }

    .about-feature-icon svg {
      width: 16px;
      height: 16px;
      color: var(--color-accent);
    }

    .about-feature h4 {
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 0.25rem;
    }

    .about-feature p {
      font-size: 0.88rem;
      color: var(--color-gray-600);
    }

    /* ──────────────────────────────────────
       TESTIMONIOS
       ────────────────────────────────────── */
    .testimonials {
      padding: var(--section-pad) 0;
      background: var(--color-navy);
      color: var(--color-white);
    }

    .testimonials .section-label {
      color: var(--color-accent);
    }

    .testimonials .section-title {
      color: var(--color-white);
    }

    .testimonials-header {
      text-align: center;
      margin-bottom: 3.5rem;
    }

    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .testimonial-card {
      padding: 2.25rem;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 4px;
      transition: background 0.3s;
    }

    .testimonial-card:hover {
      background: rgba(255,255,255,0.08);
    }

    .testimonial-stars {
      color: var(--color-accent);
      font-size: 0.85rem;
      letter-spacing: 2px;
      margin-bottom: 1.25rem;
    }

    .testimonial-card blockquote {
      font-size: 0.95rem;
      line-height: 1.75;
      color: rgba(255,255,255,0.8);
      margin-bottom: 1.5rem;
      font-style: italic;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .testimonial-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255,255,255,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font-serif);
      font-size: 1rem;
      font-weight: 600;
      color: var(--color-accent);
    }

    .testimonial-author-info strong {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
    }

    .testimonial-author-info span {
      font-size: 0.78rem;
      color: rgba(255,255,255,0.5);
    }

    /* ──────────────────────────────────────
       FORMULARIO DE CONTACTO
       ────────────────────────────────────── */
    .contact {
      padding: var(--section-pad) 0;
      background: var(--color-white);
    }

    .contact .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: clamp(3rem, 6vw, 5rem);
      align-items: start;
    }

    .contact-info {
      padding-top: 1rem;
    }

    .contact-info .section-subtitle {
      margin-bottom: 2.5rem;
    }

    .contact-details {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .contact-detail {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 0.92rem;
      color: var(--color-gray-600);
    }

    .contact-detail svg {
      width: 18px;
      height: 18px;
      color: var(--color-accent);
      flex-shrink: 0;
    }

    .form-card {
      background: var(--color-warm-gray);
      padding: clamp(2rem, 4vw, 3rem);
      border-radius: 4px;
    }

    .form-card h3 {
      font-family: var(--font-serif);
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
    }

    .form-card > p {
      font-size: 0.88rem;
      color: var(--color-gray-600);
      margin-bottom: 2rem;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
    }

    .form-group {
      margin-bottom: 1.25rem;
    }

    .form-group label {
      display: block;
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--color-navy);
      margin-bottom: 0.5rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 0.85rem 1rem;
      font-family: var(--font-sans);
      font-size: 0.92rem;
      color: var(--color-navy);
      background: var(--color-white);
      border: 1px solid var(--color-gray-200);
      border-radius: 2px;
      outline: none;
      transition: border-color 0.3s, box-shadow 0.3s;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--color-accent);
      box-shadow: 0 0 0 3px rgba(201,169,110,0.12);
    }

    .form-group input.error,
    .form-group select.error,
    .form-group textarea.error {
      border-color: var(--color-error);
      box-shadow: 0 0 0 3px rgba(192,57,43,0.08);
    }

    .form-group .error-msg {
      font-size: 0.75rem;
      color: var(--color-error);
      margin-top: 0.35rem;
      display: none;
    }

    .form-group input.error ~ .error-msg,
    .form-group select.error ~ .error-msg,
    .form-group textarea.error ~ .error-msg {
      display: block;
    }

    .form-group textarea {
      resize: vertical;
      min-height: 100px;
    }

    .form-group select {
      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='%236B6862' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 1rem center;
      padding-right: 2.5rem;
    }

    .btn-submit {
      width: 100%;
      font-family: var(--font-sans);
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 1.1rem;
      background: var(--color-navy);
      color: var(--color-white);
      border: none;
      border-radius: 2px;
      cursor: pointer;
      transition: background 0.3s, transform 0.2s;
      margin-top: 0.5rem;
    }

    .btn-submit:hover {
      background: var(--color-navy-light);
      transform: translateY(-1px);
    }

    .btn-submit:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
    }

    .form-note {
      font-size: 0.75rem;
      color: var(--color-gray-400);
      text-align: center;
      margin-top: 1rem;
    }

    .form-success {
      display: none;
      text-align: center;
      padding: 2rem 0;
    }

    .form-success.active {
      display: block;
    }

    .form-success svg {
      width: 48px;
      height: 48px;
      color: var(--color-success);
      margin-bottom: 1rem;
    }

    .form-success h4 {
      font-family: var(--font-serif);
      font-size: 1.35rem;
      margin-bottom: 0.5rem;
    }

    .form-success p {
      font-size: 0.92rem;
      color: var(--color-gray-600);
    }

    /* ──────────────────────────────────────
       CERTIFICACIONES
       ────────────────────────────────────── */
    .certifications {
      padding: 3.5rem 0;
      background: var(--color-warm-gray);
      border-top: 1px solid var(--color-gray-200);
    }

    .certifications .container {
      text-align: center;
    }

    .certifications .section-label {
      margin-bottom: 2rem;
    }

    .cert-logos {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: clamp(2.5rem, 5vw, 4rem);
      flex-wrap: wrap;
    }

    .cert-logo {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.5rem;
      opacity: 0.5;
      transition: opacity 0.3s;
    }

    .cert-logo:hover {
      opacity: 0.85;
    }

    .cert-logo svg {
      width: 40px;
      height: 40px;
      color: var(--color-navy);
    }

    .cert-logo span {
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--color-gray-600);
    }

    /* ──────────────────────────────────────
       FOOTER
       ────────────────────────────────────── */
    .footer {
      padding: 3rem 0;
      background: var(--color-navy);
      color: rgba(255,255,255,0.5);
    }

    .footer .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .footer .logo {
      color: var(--color-white);
    }

    .footer p {
      font-size: 0.8rem;
    }

    .footer-links {
      display: flex;
      gap: 1.5rem;
      list-style: none;
    }

    .footer-links a {
      font-size: 0.8rem;
      color: rgba(255,255,255,0.5);
      transition: color 0.3s;
    }

    .footer-links a:hover {
      color: var(--color-white);
    }

    /* ──────────────────────────────────────
       ANIMACIONES KEYFRAMES
       ────────────────────────────────────── */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(24px); }
      to { opacity: 1; transform: translateY(0); }
    }

    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    /* ──────────────────────────────────────
       RESPONSIVE
       ────────────────────────────────────── */
    @media (max-width: 968px) {
      .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
      }

      .hero-content {
        max-width: 100%;
      }

      .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
      }

      .hero-actions {
        justify-content: center;
      }

      .hero-image {
        order: -1;
        max-width: 480px;
        margin: 0 auto;
      }

      .hero-image img {
        height: 360px;
      }

      .hero-image::before {
        display: none;
      }

      .hero-stats {
        justify-content: center;
      }

      .services-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
      }

      .about .container {
        grid-template-columns: 1fr;
      }

      .about-image {
        order: -1;
      }

      .about-image img {
        height: 320px;
      }

      .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
      }

      .contact .container {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 640px) {
      .nav-links {
        display: none;
      }

      .menu-toggle {
        display: block;
      }

      /* Mobile nav overlay */
      .nav-links.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--color-white);
        justify-content: center;
        align-items: center;
        gap: 2rem;
        z-index: 200;
      }

      .nav-links.open a {
        font-size: 1.15rem;
      }

      .hero h1 {
        font-size: clamp(2rem, 7vw, 2.75rem);
      }

      .hero-stats {
        gap: 1.5rem;
      }

      .form-row {
        grid-template-columns: 1fr;
      }
    }