:root {
            --bg-color: #0a0a0a;
            --card-bg: #141414;
            --text-color: #f0f0f0;
            --border-color: #333;
            --btn-bg: #ffffff;
            --btn-text: #000000;
            
            --seat-vip: #ef4444;
            --seat-premium: #f59e0b;
            --seat-pro: #8b5cf6;
            --seat-regular: #3b82f6;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }

        body {
            font-family: 'Outfit', sans-serif;
            background-color: var(--bg-color);
            color: var(--text-color);
            display: flex;
            flex-direction: column;
            align-items: center;
            min-height: 100vh;
            padding: 40px 20px;
        }

        header { text-align: center; margin-bottom: 50px; }
        h1 { 
            font-weight: 600; 
            font-size: 2rem; 
            text-transform: uppercase; 
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        h1 span { color: inherit; }
        .match-info { 
            font-size: 1rem; 
            color: #888; 
            font-weight: 300; 
            letter-spacing: 0.5px;
        }

        .section-title {
            color: #888; 
            margin-bottom: 12px;
            text-transform: uppercase;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 1px;
        }

        .container {
            display: flex;
            gap: 40px;
            width: 100%;
            max-width: 1200px;
            justify-content: center;
            flex-wrap: wrap;
            align-items: flex-start;
        }

        .left-column-wrapper {
            flex: 2;
            min-width: 350px;
            display: flex;
            flex-direction: column;
        }

        .zones-container {
            width: 100%;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .zone-card {
            background: var(--card-bg);
            padding: 20px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            border-left: 3px solid transparent; 
            transition: background-color 0.2s;
        }
        
        .zone-card:hover {
            background: #1a1a1a;
        }

        .zone-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }

        .zone-title { font-weight: 600; text-transform: uppercase; font-size: 0.9rem; letter-spacing: 0.5px; }
        .zone-price { font-weight: 400; color: #888; font-size: 0.9rem; }

        select {
            width: 100%;
            padding: 10px;
            background-color: #0a0a0a;
            color: #fff;
            border: 1px solid #333;
            border-radius: 4px;
            font-family: 'Outfit', sans-serif;
            font-size: 0.9rem;
            cursor: pointer;
            outline: none;
        }
        
        select:focus { border-color: #fff; /* White focus instead of neon */ }
        select:disabled { opacity: 0.4; cursor: not-allowed; }

        /* Add Button - Clean White */
        .action-area {
            grid-column: span 2;
            margin-top: 15px;
        }

        .add-btn {
            width: 100%;
            background-color: #ffffff;
            color: #000;
            font-weight: 600;
            padding: 16px;
            border: 1px solid #fff;
            border-radius: 4px;
            cursor: pointer;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 1px;
            transition: opacity 0.2s;
        }

        .add-btn:hover { opacity: 0.9; }
        .add-btn:active { transform: scale(0.99); }

        .stadium-image-container {
            flex: 1.5;
            min-width: 250px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .stadium-image-container img {
            width: 100%;
            height: auto;
            border-radius: 4px;
            border: 1px solid #222;
            display: block;
            max-height: 600px; 
            object-fit: contain;
            background: #000;
        }

        .cart-panel {
            flex: 1;
            min-width: 300px;
            background: var(--card-bg);
            padding: 25px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
            height: fit-content;
            margin-top: 30px; 
        }

        .cart-header { 
            border-bottom: 1px solid #333; 
            padding-bottom: 15px; 
            margin-bottom: 15px; 
        }
        
        .cart-header h2 {
            font-size: 1.2rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        
        .cart-items { min-height: 100px; max-height: 400px; overflow-y: auto; }
        
        .cart-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            background: transparent;
            margin-bottom: 5px;
            border-bottom: 1px solid #222;
        }
        
        .cart-item-details {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .color-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        .ticket-code { font-weight: 600; font-size: 1rem; }
        .ticket-tier { font-size: 0.8rem; color: #666; text-transform: uppercase; }

        .remove-btn {
            color: #666;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .remove-btn:hover { color: #fff; text-decoration: underline; }

        .total-section {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .total-price { font-size: 1.5rem; font-weight: 600; color: #fff; }

        .checkout-btn {
            width: 100%;
            padding: 16px;
            margin-top: 20px;
            background-color: #333;
            color: #fff;
            border: 1px solid #333;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: background 0.2s;
        }
        .checkout-btn:hover { background-color: #444; border-color: #444; }

        @media (max-width: 900px) {
            .zones-container { grid-template-columns: 1fr; }
            .action-area { grid-column: span 1; }
            .container { gap: 20px; }
            
            .left-column-wrapper, .stadium-image-container, .cart-panel {
                flex: 1 1 100%;
            }
            .cart-panel { margin-top: 0; }
        }