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

        .gradient-bg {
            background: linear-gradient(-45deg, #405DE6, #5B51D8, #833AB4, #C13584, #E1306C, #FD1D1D);
            background-size: 400% 400%;
            animation: gradient 15s ease infinite;
        }

        .input-focus-effect {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .input-focus-effect:focus {
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(225, 48, 108, 0.2);
        }

        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
        }

        .loading {
            border: 3px solid #f3f3f3;
            border-top: 3px solid #E1306C;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s cubic-bezier(0.45, 0, 0.55, 1) infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .fade-in {
            animation: fadeIn 0.5s ease-in;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .button-hover {
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .button-hover:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(225, 48, 108, 0.3);
        }

        .hide {
            display: none;
        }

        .video-container {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }

        .progress-bar {
            width: 100%;
            height: 4px;
            background: #f3f3f3;
            border-radius: 2px;
            overflow: hidden;
        }

        .progress-value {
            width: 0%;
            height: 100%;
            background: linear-gradient(90deg, #E1306C, #FD1D1D);
            transition: width 0.3s ease;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
        }

        .feature-card {
            background: white;
            padding: 1.5rem;
            border-radius: 1rem;
            transition: transform 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-5px);
        }

        .footer-link {
            transition: color 0.3s ease;
        }

        .footer-link:hover {
            color: #E1306C;
        }

        .quality-selector {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23666'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.5rem center;
            background-size: 1.5em 1.5em;
        }

        /* Dark mode styles */
        .dark .dark\:bg-dark {
            background-color: #1a202c;
        }
        .dark .dark\:bg-darker {
            background-color: #0f141e;
        }
        .dark .dark\:text-white {
            color: #ffffff;
        }
        .dark .dark\:text-gray-300 {
            color: #d1d5db;
        }
        .dark .dark\:border-gray-700 {
            border-color: #374151;
        }
        .dark .dark\:bg-gray-800 {
            background-color: #1f2937;
        }
        .dark .feature-card {
            background-color: #1f2937;
        }
        .dark .dark\:hover\:text-pink-500:hover {
            color: #E1306C;
        }

        /* FAQ styles */
        .faq-item {
            border-bottom: 1px solid #e2e8f0;
        }
        .dark .faq-item {
            border-bottom-color: #374151;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer.show {
            max-height: 500px;
        }
        .faq-question i {
            transition: transform 0.3s ease;
        }
        .faq-question.active i {
            transform: rotate(180deg);
        }

        /* Mobile menu */
        .mobile-menu {
            transition: transform 0.3s ease, opacity 0.3s ease;
            transform: translateX(100%);
            opacity: 0;
        }
        .mobile-menu.open {
            transform: translateX(0);
            opacity: 1;
        }