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

:root {
    --neuron-dark: #0a0a0a;
    --neuron-dark-secondary: #1a1a1a;
    --neuron-text-primary: #ffffff;
    --neuron-text-secondary: #a0a0a0;
    --neuron-accent: #00d4ff;
    --neuron-accent-hover: #00b8e6;
    --neuron-border: #2a2a2a;
    --neuron-card-bg: #141414;
    --neuron-card-hover: #1e1e1e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--neuron-dark);
    min-height: 100vh;
    padding: 20px;
    color: var(--neuron-text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

header {
    background: var(--neuron-card-bg);
    padding: 24px 32px;
    border-radius: 12px;
    border: 1px solid var(--neuron-border);
    margin-bottom: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
}

h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--neuron-text-primary);
    letter-spacing: -0.5px;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--neuron-text-secondary);
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--neuron-text-secondary);
    animation: pulse 2s infinite;
}

.status-indicator.connected {
    background: #00ff88;
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
}

.status-indicator.disconnected {
    background: #ff4444;
    box-shadow: 0 0 8px rgba(255, 68, 68, 0.5);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

main.services-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.service-card {
    background: var(--neuron-card-bg);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--neuron-border);
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--neuron-accent);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.1);
}

.service-section {
    height: 100%;
}

.service-section h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--neuron-text-primary);
    letter-spacing: -0.3px;
}

.instances-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.instance-card {
    background: var(--neuron-dark-secondary);
    border: 1px solid var(--neuron-border);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: slideIn 0.4s ease;
    position: relative;
    overflow: hidden;
}

.instance-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--neuron-accent), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.instance-card:hover {
    border-color: var(--neuron-accent);
    background: var(--neuron-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.1);
}

.instance-card:hover::before {
    opacity: 1;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.instance-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--neuron-border);
}

.instance-id {
    font-size: 18px;
    font-weight: 600;
    color: var(--neuron-text-primary);
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    margin-bottom: 6px;
    letter-spacing: -0.2px;
}

.environment {
    font-size: 11px;
    color: var(--neuron-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    padding: 4px 8px;
    background: var(--neuron-card-bg);
    border-radius: 4px;
    display: inline-block;
    border: 1px solid var(--neuron-border);
}

.uptime {
    font-size: 13px;
    color: var(--neuron-text-secondary);
    text-align: right;
    font-weight: 500;
}

.uptime-value {
    font-weight: 600;
    color: #00ff88;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
}

.stats-section {
    margin-bottom: 20px;
}

.stats-section:last-child {
    margin-bottom: 0;
}

.stats-section.expandable {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    margin-bottom: 0;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin-bottom 0.3s ease;
}

.stats-section.expandable.expanded {
    max-height: 1000px;
    opacity: 1;
    margin-bottom: 20px;
}

.stats-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--neuron-text-secondary);
    margin-bottom: 12px;
    letter-spacing: 1px;
    font-weight: 600;
}

.stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 10px 14px;
    background: var(--neuron-card-bg);
    border-radius: 6px;
    border: 1px solid var(--neuron-border);
    transition: all 0.2s ease;
}

.stats-row:hover {
    border-color: var(--neuron-accent);
    background: rgba(0, 212, 255, 0.05);
}

.stats-row:last-child {
    margin-bottom: 0;
}

.stat-label {
    font-size: 13px;
    color: var(--neuron-text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--neuron-text-primary);
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
}

.expand-button {
    width: 100%;
    margin-top: 16px;
    padding: 12px;
    background: var(--neuron-card-bg);
    border: 1px solid var(--neuron-border);
    border-radius: 8px;
    color: var(--neuron-text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: inherit;
}

.expand-button:hover {
    background: var(--neuron-dark-secondary);
    border-color: var(--neuron-accent);
    color: var(--neuron-accent);
}

.expand-button:active {
    transform: scale(0.98);
}

.no-instances {
    grid-column: 1 / -1;
}

.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 8px;
    border: 1px solid;
    font-size: 14px;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-color: rgba(255, 193, 7, 0.5);
    color: #ffc107;
}

.alert-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: currentColor;
}

.alert-message {
    flex: 1;
    text-align: left;
}

.hidden {
    display: none;
}

.fade-out {
    animation: fadeOut 0.3s ease forwards;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Responsive design */
@media (max-width: 1200px) {
    .instances-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .instances-container {
        grid-template-columns: 1fr;
    }
    
    header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    h1 {
        font-size: 24px;
    }
    
    .service-card {
        padding: 24px;
    }
}