/* --- DULL OCEAN THEME VARIABLES --- */
        :root { 
            --accent: #2b5a83; 
            --accent-dark: #16304a;
            --bg-deep: #010a12; 
            --bg-light: #061a2e;
            --text-main: #e2e8f0;
            --text-muted: #8da4c4;
        }

        html, body {
            background-color: var(--bg-deep) !important;
            margin: 0; padding: 0;
            height: 100vh; width: 100vw;
            overflow: hidden;
            font-family: 'Inter', -apple-system, sans-serif;
            color: var(--text-main);
        }

        body { 
            background: radial-gradient(circle at center, var(--bg-light), var(--bg-deep));
            background-image: 
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        /* --- HERO SECTION --- */
        .hero-container {
            z-index: 10;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-top: -10vh;
        }

        .main-title {
            font-size: 5rem;
            font-weight: 900;
            letter-spacing: 12px;
            margin: 0 0 10px 0;
            text-transform: uppercase;
            color: var(--text-main);
            text-shadow: 0 0 20px rgba(43, 90, 131, 0.5), 0 0 40px rgba(22, 48, 74, 0.8);
        }

        .changing-subtitle {
            font-size: 1.5rem;
            color: var(--text-muted);
            font-style: italic;
            font-weight: 500;
            letter-spacing: 2px;
            transition: opacity 0.6s ease-in-out;
            height: 2rem; /* Keeps layout stable during fade */
        }

        /* --- WAVES --- */
        .wave-wrapper {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 15vh;
            min-height: 100px;
            z-index: 1;
            pointer-events: none;
        }

        .svg-waves { width: 100%; height: 100%; }
        .parallax > use { animation: move-forever 20s cubic-bezier(.55,.5,.45,.5) infinite; }
        .parallax > use:nth-child(1) { animation-delay: -2s; animation-duration: 7s; }
        .parallax > use:nth-child(2) { animation-delay: -3s; animation-duration: 10s; }
        .parallax > use:nth-child(3) { animation-delay: -4s; animation-duration: 13s; }
        .parallax > use:nth-child(4) { animation-delay: -5s; animation-duration: 20s; }

        @keyframes move-forever { 
            0% { transform: translate3d(-90px,0,0); } 
            100% { transform: translate3d(85px,0,0); } 
        }