body {
            margin: 0;
            font-family: Arial, sans-serif;
            background: #111;
            color: white;
        }
        header {
            background: #181818;
            padding: 25px;
            border-bottom: 2px solid #333;
        }
        header h1 {
            margin: 15px;
            font-size: 40px;
            text-align: center;
        }
        main {
            padding: 25px;
            max-width: 1200px;
            margin: auto;
        }
        .operators {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
            gap: 15px;
        }
        .operator {
            background: #1d1d1d;
            border: 1px solid #333;
            border-radius: 6px;
            overflow: hidden;
            cursor: pointer;
            transition: 0.2s;
        }
        .operator:hover {
            transform: translateY(-5px);
            border-color: #3b82f6;
        }
        .operator.selected {
            border: 3px solid #3b82f6;
        }
        .operator-image {
            height: 180px;
            background: linear-gradient(135deg, #344054, #111);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 50px;
        }
        .operator-name {
            padding: 15px;
            font-size: 18px;
            font-weight: bold;
        }
        .operator-role {
            padding: 0 15px 15px;
            color: #aaa;
            font-size: 13px;
        }