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

body {
    font-family: Arial, sans-serif;
    background: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 2em;
}

.contact-info {
    text-align: center;
    background: #e9ecef;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 15px;
    font-size: 1.1em;
}

.payment-info {
    text-align: center;
    background: #e8f5e9;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 30px;
    font-size: 1em;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.columns-container {
    display: flex;
    gap: 30px;
    margin-top: 20px;
}

.column {
    flex: 1;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.column-header {
    background: #3498db;
    color: white;
    padding: 15px;
    text-align: center;
    font-size: 1.2em;
    font-weight: bold;
}

.domain-list {
    max-height: 500px;
    overflow-y: auto;
}

.domain-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.domain-table th {
    background: #34495e;
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    position: sticky;
    top: 0;
}

.domain-table td {
    padding: 15px;
    border-bottom: 1px solid #e9ecef;
}

.domain-table tr:last-child td {
    border-bottom: none;
}

.domain-table tr:hover {
    background: #f8f9fa;
}

.domain-name {
    font-weight: 600;
    color: #2c3e50;
}

.domain-price {
    color: #e74c3c;
    font-weight: bold;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .columns-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .domain-table {
        font-size: 0.9em;
    }
    
    .domain-table th,
    .domain-table td {
        padding: 12px 10px;
    }
    
    .domain-list {
        max-height: 300px;
    }
}