/* --- Root Variables & Theme --- */
        :root {
            --bg-main: #050505;
            --sidebar-bg: #0f0f0f;
            --accent-blue: #0070f3;
            --border-soft: #1e1e1e;
            --text-main: #ffffff;
            --text-muted: #888888;
            --input-bg: #161616;
            --card-bg: #111111;
        }

        * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

        body { 
            font-family: 'Inter', sans-serif; 
            background: var(--bg-main); 
            color: var(--text-main); 
            margin: 0; 
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* --- Layout --- */
        .main-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 40px 20px;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
        }

        .header-section {
            width: 100%;
            max-width: 960px;
            margin-bottom: 40px;
            text-align: left;
        }

        .header-section h1 {
            font-size: 2rem;
            font-weight: 800;
            margin: 0;
            letter-spacing: -0.02em;
        }

        .header-section p {
            color: var(--text-muted);
            margin-top: 8px;
            font-size: 1rem;
        }

        /* --- Stats Grid --- */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            width: 100%;
            max-width: 960px;
            margin-bottom: 30px;
        }

        .stat-box {
            background: var(--card-bg);
            padding: 24px;
            border-radius: 20px;
            border: 1px solid var(--border-soft);
            text-align: left;
        }

        .stat-box label {
            display: block;
            font-size: 0.65rem;
            font-weight: 800;
            text-transform: uppercase;
            color: var(--text-muted);
            margin-bottom: 8px;
            letter-spacing: 1px;
        }

        .stat-box .value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-main);
        }

        /* --- Pricing Card --- */
        .card {
            width: 100%;
            max-width: 960px;
            background: var(--card-bg);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-soft);
            box-shadow: 0 20px 50px rgba(0,0,0,0.5);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
        }

        .plan-card {
            background: var(--input-bg);
            border: 1px solid var(--border-soft);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }

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

        .plan-card h3 {
            margin: 0;
            font-size: 1.1rem;
            font-weight: 700;
        }

        .plan-card .price {
            font-size: 2.2rem;
            font-weight: 800;
            margin: 20px 0;
            color: var(--accent-blue);
        }

        .plan-card .desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 25px;
            line-height: 1.5;
        }

        /* --- Buttons --- */
        .btn {
            width: 100%;
            padding: 14px;
            background: var(--accent-blue);
            color: white;
            border: none;
            border-radius: 12px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: opacity 0.2s, transform 0.1s;
        }

        .btn:hover {
            opacity: 0.9;
        }

        .btn:active {
            transform: scale(0.98);
        }

        @media (max-width: 768px) {
            .main-content { padding: 24px 16px; }
            .header-section h1 { font-size: 1.6rem; }
            .card { padding: 24px; }
        }