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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(-45deg, #0c0c0c, #1a1a2e, #16213e, #0f172a);
    background-size: 400% 400%;
    animation: gradient 6s ease infinite;
    min-height: 100vh;
    color: #eee;
    overflow-x: hidden;
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    color: #fff;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.6);
}

.header p {
    font-size: 1.2rem;
    opacity: 0.85;
}

.auto-refresh {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: 25px;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.1);
}

.auto-refresh:hover {
    background: rgba(255,255,255,0.1);
    transform: scale(1.05);
}

.refresh-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    margin-right: 8px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.overall-status {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    text-align: center;
    font-size: 1.3rem;
    font-weight: 600;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    color: #fff;
}

.status-healthy { background: linear-gradient(135deg, #10b981, #059669) !important; color: white; }
.status-degraded { background: linear-gradient(135deg, #f59e0b, #d97706) !important; color: white; }
.status-unhealthy { background: linear-gradient(135deg, #ef4444, #dc2626) !important; color: white; }

.health-score {
    display: inline-block;
    margin-left: 15px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    font-size: 1rem;
    color: #fff;
}

.last-updated {
    text-align: center;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.health-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    color: #fff;
}

.health-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 48px rgba(0,0,0,0.25);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(255,255,255,0.1);
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
}

.card-status {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-online { background: #dcfce7; color: #166534; }
.status-offline { background: #fecaca; color: #991b1b; }
.status-degraded { background: #fef3c7; color: #92400e; }

.metric-grid,
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.metric {
    text-align: center;
}

.metric-label {
    font-size: 0.85rem;
    color: #a0aec0;
    margin-bottom: 6px;
    font-weight: 500;
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    line-height: 1;
}

.metric-unit {
    font-size: 1rem;
    color: #cbd5e0;
    font-weight: 400;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #2d3748;
    border-radius: 4px;
    margin-top: 8px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.progress-healthy { background: linear-gradient(90deg, #10b981, #059669); }
.progress-warning { background: linear-gradient(90deg, #f59e0b, #d97706); }
.progress-danger { background: linear-gradient(90deg, #ef4444, #dc2626); }

.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 12px;
    margin-top: 15px;
    color: #991b1b;
    font-size: 0.9rem;
}

.recommendations {
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    padding: 16px;
    color: #fff;
}

.recommendation-item {
    margin-bottom: 8px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: #a0aec0;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top: 3px solid #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 12px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.alert-section {
    margin-top: 30px;
}

.alert-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    color: #fff;
}

.alert-item {
    padding: 16px;
    border-radius: 10px;
    margin-bottom: 12px;
    border-left: 4px solid;
}

.alert-critical {
    background: #4b0000;
    border-left-color: #ef4444;
    color: #ffb3b3;
}

.alert-warning {
    background: #4b3b00;
    border-left-color: #f59e0b;
    color: #ffe7a3;
}

.alert-info {
    background: #00184b;
    border-left-color: #3b82f6;
    color: #cfe1ff;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.alert-message {
    font-size: 0.9rem;
    opacity: 0.9;
}

.chart-container {
    margin-top: 20px;
    height: 200px;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0aec0;
}

.wide-card {
    grid-column: 1 / -1;
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .metric-grid, .stats-grid {
        grid-template-columns: 1fr;
    }

    .header h1 {
        font-size: 2rem;
    }

    .auto-refresh {
        position: relative;
        top: auto;
        right: auto;
        margin-bottom: 20px;
        display: inline-block;
    }
}

.tabs {
    display: flex;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 20px;
}

.tab {
    flex: 1;
    padding: 12px 20px;
    text-align: center;
    border-radius: 8px;
    cursor: pointer;
    color: rgba(255,255,255,0.6);
    transition: all 0.3s ease;
}

.tab.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.tab:hover {
    background: rgba(255,255,255,0.08);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}