:root {
            --bg-color: #0f0f11;
            --card-bg: #1a1a1e;
            --text-primary: #f0f0f0;
            --text-secondary: #888899;
            --accent: #6d4aff;
        }

        body {
            background: var(--bg-color);
            color: var(--text-primary);
            min-height: 100vh;
        }

        .hub-container {
            max-width: 900px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        .header {
            text-align: center;
            margin-bottom: 60px;
        }

        .header h1 {
            font-weight: 300;
            font-size: 2.5rem;
            letter-spacing: 2px;
            margin-bottom: 0.5rem;
        }

        .header p {
            color: var(--text-secondary);
            font-size: 1rem;
        }

        .app-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
        }

        .app-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 24px;
            text-decoration: none;
            color: var(--text-primary);
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .app-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: opacity 0.2s;
        }

        .app-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(109, 74, 255, 0.15);
            border-color: rgba(109, 74, 255, 0.3);
        }

        .app-card:hover::before {
            opacity: 1;
        }

        .app-header {
            display: flex;
            align-items: center;
            margin-bottom: 12px;
            gap: 12px;
        }

        .favicon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            object-fit: cover;
            background: rgba(255, 255, 255, 0.05);
            flex-shrink: 0;
        }

        .favicon.loading {
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        .app-name {
            font-size: 1.1rem;
            font-weight: 500;
            margin-bottom: 4px;
        }

        .app-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        .tag {
            display: inline-block;
            font-size: 0.7rem;
            padding: 2px 8px;
            background: rgba(109, 74, 255, 0.15);
            border-radius: 4px;
            margin-top: 12px;
            color: var(--accent);
        }

        .footer {
            text-align: center;
            margin-top: 60px;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }