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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f7fa;
    padding: 1rem;
}

.container { max-width: 1200px; margin: 0 auto; background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }

h1, h2, h3 { color: #2c5f8d; margin-bottom: 1rem; }

.content-section { margin: 2rem 0; }

.overview-section { background: #f8f9fa; padding: 1.5rem; border-radius: 8px; margin: 1.5rem 0; }

.info-box { background: #e7f5ff; border-left: 4px solid #2c5f8d; padding: 1rem; margin: 1rem 0; border-radius: 4px; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: #555; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.75rem; border: 1px solid #ddd; border-radius: 4px; font-size: 1rem; font-family: inherit; }
.form-group small { display: block; margin-top: 0.25rem; color: #666; font-size: 0.875rem; }

.btn { display: inline-block; padding: 0.75rem 1.5rem; background: #2c5f8d; color: white; text-decoration: none; border: none; border-radius: 4px; cursor: pointer; font-size: 1rem; font-family: inherit; transition: background 0.2s; }
.btn:hover { background: #1a3a5a; }
.btn-small { padding: 0.4rem 0.8rem; font-size: 0.875rem; display: inline-block; border-radius: 4px; text-decoration: none; border: none; cursor: pointer; background: #2c5f8d; color: white; font-family: inherit; }
.btn-small:hover { background: #1a3a5a; }
.btn-danger { background: #dc3545; }
.btn-danger:hover { background: #c82333; }

.message { padding: 1rem; border-radius: 4px; margin: 1rem 0; }
.message.success { background: #d4edda; border: 1px solid #c3e6cb; color: #155724; }
.message.error { background: #f8d7da; border: 1px solid #f5c6cb; color: #721c24; }

.data-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.data-table th, .data-table td { padding: 0.75rem; text-align: left; border-bottom: 1px solid #ddd; }
.data-table th { background: #f8f9fa; font-weight: 600; color: #555; }
.data-table tr:hover { background: #f8f9fa; }

.step { background: #fff3cd; border-left: 4px solid #ffc107; padding: 1rem; margin: 1rem 0; border-radius: 4px; }
.step h3 { margin-top: 0; color: #856404; }
.step ul, .step ol { margin-left: 1.5rem; }
.step li { margin: 0.5rem 0; }

code { background: #f5f5f5; padding: 0.25rem 0.5rem; border-radius: 3px; font-family: 'Courier New', monospace; }

@media (max-width: 768px) {
    .container { padding: 1rem; }
    .data-table { font-size: 0.875rem; }
    .data-table th, .data-table td { padding: 0.5rem; }
}