body {
            height: 100vh;
            background: radial-gradient(circle at center, #013a63 0%, #012a4a 100%);
            color: #fff;
            font-family: 'Poppins', sans-serif;
            overflow: hidden;
            position: relative;
        }

        /* Fondo animado: peces nadando de izquierda a derecha */
        .background-fish {
            position: absolute;
            top: 0;
            left: 0;
            width: 200%;
            height: 100%;
            background-image: url('https://urrusty.github.io/Scuba/assets/img/Header/back%20card%20design.png');
            background-size: contain;
            background-repeat: repeat-x;
            background-position: center;
            opacity: 0.15;
            animation: swimHorizontal 45s linear infinite;
            z-index: 0;
        }

        @keyframes swimHorizontal {
            0% {
                transform: translateX(-50%);
            }

            100% {
                transform: translateX(0%);
            }
        }

        .content {
            position: relative;
            z-index: 2;
            text-align: center;
            top: 50%;
            transform: translateY(-50%);
        }

        h1 {
            font-size: 3rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        p {
            font-size: 1.2rem;
            color: #cfe0f2;
            margin-bottom: 2rem;
        }

        .contact-info a {
            color: #90e0ef;
            text-decoration: none;
            font-weight: 500;
        }

        .social-icons a {
            color: #fff;
            margin: 0 10px;
            font-size: 1.5rem;
            transition: all 0.3s ease;
        }

        .social-icons a:hover {
            color: #00b4d8;
            transform: translateY(-3px);
        }

        .btn-back {
            background-color: #00b4d8;
            border: none;
            border-radius: 50px;
            color: #fff;
            padding: 10px 25px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .btn-back:hover {
            background-color: #0096c7;
            transform: scale(1.05);
        }

        footer {
            position: absolute;
            bottom: 20px;
            left: 0;
            width: 100%;
            text-align: center;
            font-size: 0.9rem;
            color: #6c757d;
            z-index: 2;
        }

        @media (max-width: 576px) {
            h1 {
                font-size: 2.2rem;
            }
        }