:root {
    --primary-color: #000000;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --background-color: #ffffff;
    --card-background: #ffffff;
    --text-primary: #000000;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.5;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.header {
    background: linear-gradient(135deg, var(--card-background) 0%, #fafafa 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 40px 0;
    margin-bottom: 48px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    position: relative;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 32px;
}

.logo h1 {
    font-size: 36px;
    margin-left: 15px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.03em;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    position: relative;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 16px;
    background: rgba(255, 255, 255, 0.8);
    padding: 12px 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    margin-right: 15px;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.1);
}

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

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

.status-dot.down {
    background-color: var(--error-color);
}

.status-dot.unknown {
    background-color: var(--text-secondary);
}

@keyframes pulse {
    0% { 
        opacity: 1; 
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.1);
    }
    50% { 
        opacity: 0.7; 
        box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.05);
    }
    100% { 
        opacity: 1; 
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.1);
    }
}

.main {
    margin-bottom: 40px;
}

.status-overview {
    text-align: center;
    margin-bottom: 56px;
}

.status-overview h2 {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 400;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 56px;
}

.service-card {
    background: var(--card-background);
    border-radius: 16px;
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
    border-color: #d1d5db;
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.service-name {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.service-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 24px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-status.operational {
    background-color: rgba(34, 197, 94, 0.08);
    color: var(--success-color);
}

.service-status.degraded {
    background-color: rgba(245, 158, 11, 0.08);
    color: var(--warning-color);
}

.service-status.down {
    background-color: rgba(239, 68, 68, 0.08);
    color: var(--error-color);
}

.service-status.unknown {
    background-color: rgba(107, 114, 128, 0.08);
    color: var(--text-secondary);
}

.service-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    font-size: 14px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.detail-label {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-value {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 15px;
}

.response-time {
    color: var(--success-color);
}

.response-time.slow {
    color: var(--warning-color);
}

.response-time.very-slow {
    color: var(--error-color);
}


.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 32px 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 400;
}

.refresh-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.refresh-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success-color);
    animation: pulse 2s infinite;
    margin-right: 4px;
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .service-details {
        grid-template-columns: 1fr;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #000000;
        --card-background: #111111;
        --text-primary: #ffffff;
        --text-secondary: #a3a3a3;
        --border-color: #262626;
        --shadow: 0 1px 3px 0 rgba(255, 255, 255, 0.05), 0 1px 2px 0 rgba(255, 255, 255, 0.03);
        --shadow-lg: 0 10px 25px -5px rgba(255, 255, 255, 0.1), 0 8px 10px -6px rgba(255, 255, 255, 0.1);
        --shadow-xl: 0 20px 25px -5px rgba(255, 255, 255, 0.1), 0 10px 10px -5px rgba(255, 255, 255, 0.04);
    }
    
    .header {
        background: linear-gradient(135deg, var(--card-background) 0%, #1a1a1a 100%);
    }
    
    .status-indicator {
        background: rgba(17, 17, 17, 0.8);
        border-color: var(--border-color);
    }
}