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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;
    background: #f8f9fa;
    color: #2c3e50;
    line-height: 1.6;
}

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

.back-btn {
    display: inline-block;
    margin-bottom: 20px;
    background: #eef2ff;
    color: #4338ca;
    padding: 10px 16px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: #667eea;
    color: white;
}

@media (max-width: 480px) {
    .container {
        padding: 12px;
    }
}