/* Professional Testing Interface Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --background-color: #ecf0f1;
    --text-color: #2c3e50;
    --border-color: #bdc3c7;
    --card-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

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

header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    text-align: center;
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-menu a:hover {
    background-color: rgba(255,255,255,0.1);
}

.card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: var(--card-shadow);
}

.card h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.card h3 {
    color: var(--secondary-color);
    margin: 15px 0 10px;
    font-size: 1.2rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.info-box {
    background: #f8f9fa;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 15px;
}

.info-box h4 {
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.header-list {
    background: #f8f9fa;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 15px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
}

.header-item {
    padding: 5px 0;
    border-bottom: 1px solid #e9ecef;
}

.header-item:last-child {
    border-bottom: none;
}

.header-name {
    font-weight: bold;
    color: var(--secondary-color);
}

.header-value {
    color: #495057;
    word-break: break-word;
}

.test-section {
    margin: 30px 0;
}

.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin: 15px 0;
}

.test-link {
    display: block;
    padding: 15px;
    background: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.test-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: bold;
}

.status-success {
    background-color: var(--success-color);
    color: white;
}

.status-warning {
    background-color: var(--warning-color);
    color: white;
}

.status-danger {
    background-color: var(--danger-color);
    color: white;
}

.status-info {
    background-color: var(--secondary-color);
    color: white;
}

.geo-info {
    background: #e8f4f8;
    border: 1px solid #b8e0eb;
    border-radius: 4px;
    padding: 15px;
    margin: 15px 0;
}

.security-check {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    margin: 5px 0;
    background: #f8f9fa;
    border-radius: 4px;
}

.check-passed {
    color: var(--success-color);
}

.check-failed {
    color: var(--danger-color);
}

.response-time {
    text-align: center;
    font-size: 2rem;
    color: var(--secondary-color);
    margin: 20px 0;
}

.footer {
    text-align: center;
    padding: 20px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}