.glass {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .dark .glass {
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.4);
            box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
        }
        .dark .glass-card {
            background: rgba(30, 41, 59, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
        }
        .gradient-text {
            background: linear-gradient(135deg, #10B981 0%, #0EA5E9 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-gradient {
            background: linear-gradient(135deg, #ecfdf5 0%, #f0f9ff 50%, #ffffff 100%);
        }
        .dark .hero-gradient {
            background: linear-gradient(135deg, #064e3b 0%, #0c4a6e 50%, #0f172a 100%);
        }
        .btn-glow:hover {
            box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
        }
        .dark .btn-glow:hover {
            box-shadow: 0 0 20px rgba(16, 185, 129, 0.6);
        }
        .tilt-card {
            transform-style: preserve-3d;
            transition: transform 0.1s ease-out;
        }
        .tilt-content {
            transform: translateZ(20px);
        }
        .subject-icon {
            transition: all 0.3s ease;
        }
        .subject-card:hover .subject-icon {
            transform: scale(1.1) rotate(5deg);
        }
        .smooth-transition {
            transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .nav-blur {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(12px);
        }
        .dark .nav-blur {
            background: rgba(15, 23, 42, 0.8);
        }
        .input-focus {
            transition: all 0.3s ease;
        }
        .input-focus:focus {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.15);
        }
        .dark .input-focus:focus {
            box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.25);
        }
        .wave-bg {
            position: absolute;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 0;
        }
        .wave {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 100px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%2310B981' fill-opacity='0.05' d='M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
            background-size: cover;
        }
        .dark .wave {
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%230EA5E9' fill-opacity='0.1' d='M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
        }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }