:root {
      --azul:        #00569c;
      --azul-oscuro: #003f74;
      --azul-claro:  #1a76c4;
      --dorado:      #c9a94e;
      --dorado-light:#e0ca7e;
      --dorado-dark: #a68a2e;
      --blanco:      #ffffff;
      --gris-bg:     #f4f6f9;
      --gris-borde:  #e2e8f0;
      --texto:       #0f172a;
      --texto-sub:   #64748b;
      --verde-wa:    #25d366;
      --shadow-md:   0 4px 24px rgba(0,0,0,.09);
      --shadow-lg:   0 12px 48px rgba(0,0,0,.14);
      --radius:      14px;
      --radius-sm:   8px;
      --transition:  .35s cubic-bezier(.4,0,.2,1);
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: 'Inter', sans-serif; background: var(--blanco); color: var(--texto); line-height: 1.65; overflow-x: hidden; }
    img { display: block; max-width: 100%; }
    a { text-decoration: none; }

    /* HEADER */
    header { position: fixed; top: 0; left: 0; right: 0; z-index: 900; padding: 0 5%; height: 72px; display: flex; align-items: center; justify-content: space-between; transition: background var(--transition), box-shadow var(--transition); }
    header.scrolled { background: rgba(255,255,255,.96); backdrop-filter: blur(12px); box-shadow: 0 1px 24px rgba(0,0,0,.08); }
    .logo { display: flex; align-items: center; gap: 12px; }
    .logo-icon { width: 40px; height: 40px; border-radius: 10px; background: var(--azul); display: flex; align-items: center; justify-content: center; color: var(--blanco); font-family: 'Playfair Display', serif; font-size: 1.15rem; font-weight: 700; flex-shrink: 0; }
    .logo-text { display: flex; flex-direction: column; line-height: 1; }
    .logo-name { font-weight: 700; font-size: 1.05rem; letter-spacing: -.3px; color: var(--blanco); transition: color var(--transition); }
    header.scrolled .logo-name { color: var(--azul); }
    .logo-sub { font-size: .62rem; text-transform: uppercase; letter-spacing: 3.5px; color: var(--dorado-light); margin-top: 2px; }
    header.scrolled .logo-sub { color: var(--dorado); }
    .nav-links { display: flex; align-items: center; gap: 36px; list-style: none; }
    .nav-links a { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1.5px; color: rgba(255,255,255,.85); transition: color var(--transition); }
    .nav-links a:hover { color: var(--dorado-light); }
    header.scrolled .nav-links a { color: var(--texto); }
    header.scrolled .nav-links a:hover { color: var(--dorado); }
    .btn-nav { background: var(--dorado); color: var(--blanco); padding: 10px 24px; border-radius: 50px; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; transition: background var(--transition), box-shadow var(--transition), transform var(--transition); }
    .btn-nav:hover { background: var(--dorado-dark); box-shadow: 0 6px 20px rgba(201,169,78,.35); transform: translateY(-1px); }
    .menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 1100; padding: 4px; }
    .menu-toggle span { width: 24px; height: 2.5px; border-radius: 2px; background: var(--blanco); transition: var(--transition); }
    header.scrolled .menu-toggle span { background: var(--azul); }

    /* HERO */
    .hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; }
    .hero-bg { position: absolute; inset: 0; background: linear-gradient(135deg, var(--azul-oscuro) 0%, var(--azul) 50%, var(--azul-claro) 100%); }
    .hero-bg::after { content: ''; position: absolute; inset: 0; background-image: radial-gradient(circle at 20% 80%, rgba(201,169,78,.18) 0%, transparent 50%), radial-gradient(circle at 80% 20%, rgba(0,86,156,.4) 0%, transparent 50%); }
    .hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .18; mix-blend-mode: luminosity; }
    .hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, transparent, var(--dorado), transparent); z-index: 2; }
    .hero-content { position: relative; z-index: 1; text-align: center; padding: 120px 5% 80px; max-width: 820px; }
    .hero-tag { display: inline-block; font-size: .7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 6px; color: var(--dorado-light); margin-bottom: 20px; opacity: 0; animation: fadeUp .8s .2s forwards; }
    .hero h1 { font-family: 'Playfair Display', serif; font-size: clamp(2.4rem, 6vw, 5rem); font-weight: 700; color: var(--blanco); line-height: 1.1; margin-bottom: 22px; opacity: 0; animation: fadeUp .8s .4s forwards; }
    .hero h1 span { color: var(--dorado-light); }
    .hero p { font-size: clamp(.95rem, 2vw, 1.2rem); color: rgba(255,255,255,.78); max-width: 560px; margin: 0 auto 40px; font-weight: 300; line-height: 1.75; opacity: 0; animation: fadeUp .8s .6s forwards; }
    .hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; opacity: 0; animation: fadeUp .8s .8s forwards; }
    .btn-hero-primary { background: var(--dorado); color: var(--blanco); padding: 16px 40px; border-radius: 50px; font-size: .88rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; transition: background var(--transition), box-shadow var(--transition), transform var(--transition); border: none; cursor: pointer; }
    .btn-hero-primary:hover { background: var(--dorado-dark); box-shadow: 0 10px 32px rgba(201,169,78,.4); transform: translateY(-2px); }
    .btn-hero-outline { background: transparent; color: var(--blanco); padding: 16px 40px; border-radius: 50px; font-size: .88rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; border: 2px solid rgba(255,255,255,.35); transition: border-color var(--transition), background var(--transition); }
    .btn-hero-outline:hover { border-color: var(--blanco); background: rgba(255,255,255,.08); }
    .scroll-hint { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 2; color: rgba(255,255,255,.5); animation: bounce 2s infinite; }
    .scroll-hint svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; }

    /* SECTIONS */
    .section-header { text-align: center; margin-bottom: 56px; }
    .section-tag { display: inline-block; font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 5px; color: var(--dorado); margin-bottom: 10px; }
    .section-title { font-family: 'Playfair Display', serif; font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; color: var(--texto); line-height: 1.2; }
    .section-sub { margin-top: 12px; font-size: .98rem; color: var(--texto-sub); max-width: 500px; margin-left: auto; margin-right: auto; }

    /* SERVICIOS */
    #servicios { padding: 110px 5%; background: var(--blanco); }
    .grid-servicios { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; max-width: 1200px; margin: 0 auto; }
    .card { background: var(--blanco); border: 1px solid var(--gris-borde); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition); cursor: pointer; }
    .card:hover { border-color: var(--dorado); box-shadow: var(--shadow-lg); transform: translateY(-5px); }
    .card-img-wrap { position: relative; height: 220px; overflow: hidden; background: var(--gris-bg); }
    .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.4,0,.2,1); }
    .card:hover .card-img-wrap img { transform: scale(1.07); }
    .card-img-wrap::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--dorado); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
    .card:hover .card-img-wrap::after { transform: scaleX(1); }
    .card-body { padding: 24px 28px 28px; flex: 1; display: flex; flex-direction: column; }
    .card-body h3 { font-size: 1.08rem; font-weight: 700; color: var(--texto); margin-bottom: 10px; transition: color var(--transition); }
    .card:hover .card-body h3 { color: var(--azul); }
    .card-body p { font-size: .9rem; color: var(--texto-sub); line-height: 1.65; flex: 1; }
    .card-link { display: inline-flex; align-items: center; gap: 6px; color: var(--dorado); font-size: .85rem; font-weight: 600; margin-top: 18px; transition: gap var(--transition); }
    .card:hover .card-link { gap: 10px; }
    .card-link svg { width: 15px; height: 15px; flex-shrink: 0; }

    /* VENTAJAS */
    #ventajas { position: relative; padding: 100px 5%; background: var(--azul-oscuro); overflow: hidden; }
    #ventajas::before, #ventajas::after { content: ''; position: absolute; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--dorado), transparent); }
    #ventajas::before { top: 0; } #ventajas::after { bottom: 0; }
    #ventajas .orb { position: absolute; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(201,169,78,.1) 0%, transparent 70%); top: 50%; left: 50%; transform: translate(-50%, -50%); pointer-events: none; }
    .ventajas-header .section-tag, .ventajas-header .section-title { color: var(--blanco); }
    .ventajas-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px; max-width: 1000px; margin: 0 auto; position: relative; z-index: 1; }
    .ventaja-box { text-align: center; padding: 36px 24px; border: 1px solid rgba(201,169,78,.2); border-radius: var(--radius); background: rgba(255,255,255,.03); transition: border-color var(--transition), background var(--transition); }
    .ventaja-box:hover { border-color: rgba(201,169,78,.55); background: rgba(255,255,255,.07); }
    .ventaja-icon { width: 60px; height: 60px; border-radius: 14px; background: rgba(201,169,78,.12); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
    .ventaja-icon svg { width: 26px; height: 26px; stroke: var(--dorado); fill: none; stroke-width: 1.8; }
    .ventaja-box h4 { font-size: 1.15rem; font-weight: 700; color: var(--blanco); margin-bottom: 10px; }
    .ventaja-box p { font-size: .9rem; color: rgba(255,255,255,.62); line-height: 1.65; }

    /* CONTACTO */
    #contacto { padding: 110px 5%; background: var(--gris-bg); }
    .contacto-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; max-width: 1100px; margin: 0 auto; align-items: start; }
    .form-card { background: var(--blanco); border-radius: var(--radius); padding: 40px 36px; box-shadow: var(--shadow-md); border: 1px solid var(--gris-borde); }
    .form-label { display: block; font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--texto); margin-bottom: 7px; }
    .form-input, .form-textarea { width: 100%; padding: 13px 16px; border: 1.5px solid var(--gris-borde); border-radius: var(--radius-sm); font-size: .95rem; font-family: 'Inter', sans-serif; color: var(--texto); background: var(--blanco); transition: border-color var(--transition), box-shadow var(--transition); outline: none; appearance: none; }
    .form-input:focus, .form-textarea:focus { border-color: var(--dorado); box-shadow: 0 0 0 3px rgba(201,169,78,.12); }
    .form-textarea { resize: vertical; min-height: 130px; }
    .form-group-field { margin-bottom: 18px; }
    .btn-submit { width: 100%; padding: 15px; background: var(--azul); color: var(--blanco); border: none; border-radius: var(--radius-sm); font-size: .88rem; font-weight: 700; font-family: 'Inter', sans-serif; text-transform: uppercase; letter-spacing: 1.5px; cursor: pointer; transition: background var(--transition), transform var(--transition), box-shadow var(--transition); margin-bottom: 14px; }
    .btn-submit:hover { background: var(--azul-oscuro); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,86,156,.3); }
    .btn-wa { width: 100%; padding: 14px; background: var(--verde-wa); color: var(--blanco); border-radius: var(--radius-sm); font-size: .88rem; font-weight: 700; font-family: 'Inter', sans-serif; text-transform: uppercase; letter-spacing: 1.5px; display: flex; align-items: center; justify-content: center; gap: 9px; transition: background var(--transition), transform var(--transition); }
    .btn-wa:hover { background: #1ebe5d; transform: translateY(-1px); }
    .btn-wa svg { width: 18px; height: 18px; fill: var(--blanco); }
    .map-wrap { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--gris-borde); height: 100%; min-height: 420px; }
    .map-wrap iframe { width: 100%; height: 100%; min-height: 420px; border: 0; display: block; }

    /* MODALES */
    .modal { display: none; position: fixed; inset: 0; z-index: 2000; align-items: center; justify-content: center; padding: 20px; background: rgba(0,0,0,.65); backdrop-filter: blur(6px); }
    .modal.open { display: flex; }
    .modal-card { background: var(--blanco); border-radius: var(--radius); max-width: 620px; width: 100%; overflow: hidden; box-shadow: var(--shadow-lg); position: relative; max-height: 90vh; overflow-y: auto; animation: modalIn .3s ease; }
    .modal-img { height: 200px; position: relative; overflow: hidden; }
    .modal-img img { width: 100%; height: 100%; object-fit: cover; }
    .modal-img-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,63,116,.85), transparent); }
    .modal-img h2 { position: absolute; bottom: 18px; left: 28px; right: 48px; color: var(--blanco); font-family: 'Playfair Display', serif; font-size: 1.5rem; font-weight: 700; }
    .modal-close { position: absolute; top: 14px; right: 16px; background: rgba(255,255,255,.18); border: none; color: var(--blanco); cursor: pointer; width: 36px; height: 36px; border-radius: 50%; font-size: 1.25rem; display: flex; align-items: center; justify-content: center; transition: background var(--transition); }
    .modal-close:hover { background: rgba(255,255,255,.35); }
    .modal-body { padding: 28px 32px 32px; }
    .modal-item { display: flex; gap: 14px; margin-bottom: 18px; }
    .modal-item-icon { width: 22px; height: 22px; flex-shrink: 0; margin-top: 1px; color: var(--dorado); }
    .modal-item-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; }
    .modal-item strong { color: var(--texto); font-weight: 600; }
    .modal-item p { font-size: .93rem; color: var(--texto-sub); line-height: 1.6; }
    .modal-footer { padding: 0 32px 28px; }
    .btn-modal-cta { display: block; width: 100%; padding: 14px; background: var(--azul); color: var(--blanco); text-align: center; border-radius: var(--radius-sm); font-weight: 700; font-size: .88rem; text-transform: uppercase; letter-spacing: 1.5px; transition: background var(--transition), transform var(--transition); }
    .btn-modal-cta:hover { background: var(--azul-oscuro); transform: translateY(-1px); }

    /* FOOTER */
    footer { background: #0a0f1a; color: rgba(255,255,255,.45); padding: 32px 5%; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
    .footer-brand { display: flex; align-items: center; gap: 12px; }
    .footer-brand-name { color: rgba(255,255,255,.7); font-weight: 600; font-size: .95rem; }
    footer p { font-size: .82rem; }
    footer a { color: var(--dorado); }
    footer a:hover { color: var(--dorado-light); }

    /* ANIMATIONS */
    @keyframes fadeUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
    @keyframes bounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(8px); } }
    @keyframes modalIn { from { opacity: 0; transform: scale(.96) translateY(16px); } to { opacity: 1; transform: scale(1) translateY(0); } }
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }

    /* RESPONSIVE */
    @media (max-width: 900px) {
      .menu-toggle { display: flex; }
      nav { position: absolute; top: 100%; right: -100%; width: 100%; background: var(--blanco); padding: 32px 5%; box-shadow: 0 12px 32px rgba(0,0,0,.12); transition: right var(--transition); }
      nav.active { right: 0; }
      .nav-links { flex-direction: column; align-items: flex-start; gap: 20px; }
      .nav-links a { color: var(--texto) !important; font-size: .9rem; }
      .btn-nav { width: 100%; text-align: center; }
    }
    @media (max-width: 860px) { .contacto-grid { grid-template-columns: 1fr; } }
    @media (max-width: 600px) { .form-card { padding: 28px 20px; } .hero-content { padding: 100px 5% 60px; } }


  /* Hover zoom en imágenes */
  .module-card:hover img,
  .project-card:hover img {
    transform: scale(1.07);
  }

  /* En móvil, quitar el span 2 */
  @media (max-width: 640px) {
    [style*="grid-column: span 2"] {
      grid-column: span 1 !important;
    }
  }