:root {
            --primary: #003d4c;
            --accent: #e87722;
        }

        body {
            margin: 0;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Inter', sans-serif;
            /* Gradiente animado de fundo */
            background: linear-gradient(-45deg, #003d4c, #005a6e, #00252e);
            background-size: 400% 400%;
            animation: gradientBG 15s ease infinite;
            color: white;
            overflow: hidden;
        }

        @keyframes gradientBG {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* Efeito Glassmorphism */
        .glass-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 30px;
            padding: 60px;
            text-align: center;
            box-shadow: 0 25px 50px rgba(0,0,0,0.3);
            max-width: 600px;
            margin: 20px;
        }

        .icon-box {
            position: relative;
            display: inline-block;
            margin-bottom: 30px;
        }

        .icon-box i {
            font-size: 5rem;
            color: var(--accent);
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-15px); }
        }

        h1 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            letter-spacing: -1px;
        }

        p {
            font-weight: 300;
            font-size: 1.1rem;
            line-height: 1.6;
            opacity: 0.8;
            margin-bottom: 40px;
        }

        .btn-voltar {
            background: transparent;
            color: white;
            border: 2px solid var(--accent);
            padding: 15px 40px;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-voltar:hover {
            background: var(--accent);
            box-shadow: 0 0 20px rgba(232, 119, 34, 0.4);
            transform: scale(1.05);
        }