/* Main download section */
        .download-section {
            max-width: 900px;
            margin: 3rem auto;
            animation: fadeInUp 0.8s ease-out 0.2s both;
        }

        .download-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 3rem;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .download-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 24px 72px rgba(0, 0, 0, 0.4);
        }

        .input-group {
            position: relative;
            margin-bottom: 2rem;
        }

        .url-input {
            width: 100%;
            padding: 1.25rem 1.5rem;
            font-size: 1.05rem;
            font-family: 'JetBrains Mono', monospace;
            background: var(--bg-tertiary);
            border: 2px solid var(--border-color);
            border-radius: 16px;
            color: var(--text-primary);
            transition: all 0.3s ease;
            outline: none;
        }

        .url-input:focus {
            border-color: var(--accent-primary);
            box-shadow: 0 0 0 4px var(--accent-glow);
        }

        .url-input::placeholder {
            color: var(--text-muted);
        }

        .paste-btn {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.3s ease;
            font-family: 'Outfit', sans-serif;
            font-weight: 500;
        }

        .paste-btn:hover {
            background: var(--accent-primary);
            color: white;
            border-color: var(--accent-primary);
        }

        .download-btn {
            width: 100%;
            padding: 1.25rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            font-family: 'Outfit', sans-serif;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: white;
            border: none;
            border-radius: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px var(--accent-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
        }

        .download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px var(--accent-glow);
        }

        .download-btn:active {
            transform: translateY(0);
        }

        .download-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }

        /* Video preview section */
        .preview-section {
            margin-top: 3rem;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.5s ease;
        }

        .preview-section.active {
            opacity: 1;
            transform: translateY(0);
        }

        .preview-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 2rem;
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 2rem;
            align-items: start;
        }

        .video-thumbnail {
            position: relative;
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: 12px;
            overflow: hidden;
            background: var(--bg-tertiary);
        }

        .video-thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .video-info h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            line-height: 1.4;
        }

        .video-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }

        .meta-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        /* Format selection */
        .format-selection {
            margin-top: 1.5rem;
        }

        .format-label {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 0.75rem;
            display: block;
        }

        .format-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }

        .format-option {
            background: var(--bg-tertiary);
            border: 2px solid var(--border-color);
            border-radius: 12px;
            padding: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }

        .format-option:hover {
            border-color: var(--accent-primary);
            background: rgba(99, 102, 241, 0.05);
        }

        .format-option.selected {
            border-color: var(--accent-primary);
            background: rgba(99, 102, 241, 0.1);
        }

        .format-type {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 0.25rem;
        }

        .format-quality {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .format-size {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        .format-option.selected .format-size {
            color: var(--accent-primary);
            opacity: 0.8;
        }

        /* Status messages */
        .status-message {
            margin-top: 1.5rem;
            padding: 1rem 1.5rem;
            border-radius: 12px;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.95rem;
            animation: slideIn 0.3s ease;
        }

        .status-message.info {
            background: rgba(99, 102, 241, 0.1);
            border: 1px solid rgba(99, 102, 241, 0.3);
            color: #a5b4fc;
        }

        .status-message.success {
            background: rgba(16, 185, 129, 0.1);
            border: 1px solid rgba(16, 185, 129, 0.3);
            color: #6ee7b7;
        }

        .status-message.error {
            background: rgba(239, 68, 68, 0.1);
            border: 1px solid rgba(239, 68, 68, 0.3);
            color: #fca5a5;
        }

        .status-message.warning {
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.3);
            color: #fcd34d;
        }

        /* Loading spinner */
        .spinner {
            width: 20px;
            height: 20px;
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-top-color: white;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* Features section */
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin: 5rem auto;
            animation: fadeInUp 0.8s ease-out 0.4s both;
        }

        .feature-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent-primary);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1.5rem;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            box-shadow: 0 8px 24px var(--accent-glow);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* Footer */
        footer {
            padding: 4rem 0 2rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            margin-top: 5rem;
        }

        .footer-about {
            max-width: 720px;
            margin: 0 auto 3rem;
            text-align: center;
        }

        .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
        }

        .footer-body {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }