:root {
      --azul-playa: #3BA7D4;
      --arena: #F7E9D7;
      --naranja: #F5A623;
      --verde-pinar: #2E6F4E;
      --texto: #333;
      --blanco: #fff;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Inter', sans-serif;
    }

    body {
      background: var(--arena);
      color: var(--texto);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* ANIMACIÓN SUAVE */
    .fade-in {
      opacity: 0;
      transform: translateY(20px);
      animation: fadeIn 0.8s ease forwards;
    }

    @keyframes fadeIn {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* HERO */
    header {
      background-image: url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1600&q=80');
      background-size: cover;
      background-position: center;
      padding: 110px 20px;
      text-align: center;
      color: var(--blanco);
      position: relative;
    }

    header::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(0,0,0,0.45);
    }

    header h1, header p, header .btn-group {
      position: relative;
      z-index: 2;
    }

    header h1 {
      font-size: 2.4rem;
      font-family: 'Poppins', sans-serif;
      margin-bottom: 10px;
      letter-spacing: 1px;
    }

    header p {
      font-size: 1.1rem;
      margin-bottom: 25px;
    }

    .btn-group {
      display: flex;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .btn {
      padding: 14px 26px;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      font-weight: 600;
      font-size: 1rem;
      transition: 0.2s;
    }

    .btn-primary {
      background: var(--naranja);
      color: #000;
    }

    .btn-secondary {
      background: transparent;
      border: 2px solid var(--blanco);
      color: var(--blanco);
    }

    .btn:hover {
      transform: scale(1.05);
    }

    /* CONTENIDO */
    main {
      max-width: 1100px;
      margin: 40px auto;
      padding: 0 16px 60px;
    }

    section {
      background: var(--blanco);
      padding: 25px;
      border-radius: 18px;
      margin-bottom: 25px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    }

    section h2 {
      font-family: 'Poppins', sans-serif;
      font-size: 1.5rem;
      color: var(--verde-pinar);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .icon {
      font-size: 1.4rem;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    @media (max-width: 768px) {
      .grid-2 {
        grid-template-columns: 1fr;
      }
    }

    ul {
      margin-left: 20px;
      margin-top: 10px;
    }

    /* FOOTER */
    footer {
      text-align: center;
      padding: 25px 10px;
      font-size: 0.9rem;
      color: #444;
    }

    .social {
      margin-top: 10px;
      display: flex;
      justify-content: center;
      gap: 15px;
    }

    .social a {
      color: var(--azul-playa);
      font-weight: 600;
      text-decoration: none;
    }

    .social a:hover {
      text-decoration: underline;
    }

    /* LOGIN MODAL */
    #loginBox {
      display:none;
      position:fixed;
      inset:0;
      background:rgba(0,0,0,0.55);
      backdrop-filter:blur(4px);
      justify-content:center;
      align-items:center;
      z-index:9999;
    }

    #loginBox .modal {
      background:white;
      padding:25px;
      width:90%;
      max-width:320px;
      border-radius:14px;
      box-shadow:0 0 20px rgba(0,0,0,0.25);
      text-align:center;
    }

    #loginBox input {
      width:100%;
      padding:10px;
      margin-bottom:10px;
      border-radius:8px;
      border:1px solid #ccc;
    }

    #loginBox button {
      padding:10px;
      width:100%;
      border:none;
      border-radius:8px;
      background:#F5A623;
      font-weight:600;
      cursor:pointer;
    }

    #loginBox .cerrar {
      margin-top:12px;
      background:none;
      color:#666;
    }

    /* ERROR LOGIN */
    #loginError {
      position:fixed;
      top:20px;
      right:20px;
      background:#ffdddd;
      padding:12px 18px;
      border-left:4px solid #c0392b;
      border-radius:8px;
      font-size:0.9rem;
      display:none;
      z-index:99999;
    }