/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --color-primary: #0078D4;
    --color-primary-light: #60CDFF;
    --color-primary-dark: #005A9E;
    
    --color-success: #6CCB5F;
    --color-warning: #FFB900;
    --color-error: #FF6B6B;
    --color-info: #60CDFF;
    
    --color-bg-base: #0F0F0F;
    --color-bg-layer1: #1A1A1A;
    --color-bg-layer2: #2B2B2B;
    --color-bg-layer3: #323232;
    
    --color-surface: #2B2B2B;
    --color-surface-hover: #323232;
    
    --color-border: #3A3A3A;
    --color-border-strong: #4A4A4A;
    
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #AAAAAA;
    --color-text-tertiary: #808080;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-xxl: 24px;
    --spacing-xxxl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-round: 999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.16);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.20);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #0F0F0F 0%, #1A1A1A 100%);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xxl);
}

/* Header */
.header {
    margin-bottom: var(--spacing-xxxl);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo-image {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.logo-text h1 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 2px;
}

.logo-text p {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-bg-layer2);
    border-radius: var(--radius-round);
    border: 1px solid var(--color-border);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-text-tertiary);
    animation: pulse 2s ease-in-out infinite;
}

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

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

.status-text {
    font-size: 13px;
    font-weight: 500;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Main Content */
.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

/* Cards */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xxl);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-gradient {
    background: linear-gradient(135deg, 
        rgba(0, 120, 212, 0.15) 0%, 
        rgba(96, 205, 255, 0.1) 100%);
    border-color: rgba(0, 120, 212, 0.3);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.card-gradient-alt {
    background: linear-gradient(135deg, 
        rgba(108, 203, 95, 0.15) 0%, 
        rgba(108, 203, 95, 0.1) 100%);
    border-color: rgba(108, 203, 95, 0.3);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: rgba(0, 120, 212, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
    flex-shrink: 0;
}

.card-icon-alt {
    background: rgba(108, 203, 95, 0.2);
    color: var(--color-success);
}

.card-icon svg {
    width: 32px;
    height: 32px;
}

.card-content {
    flex: 1;
}

.card-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.card-value {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.count-number {
    font-size: 48px;
    font-weight: 700;
    line-height: 1;
    color: var(--color-primary-light);
    font-variant-numeric: tabular-nums;
}

.count-unit {
    font-size: 18px;
    color: var(--color-text-tertiary);
    padding-bottom: 8px;
}

.card-subtitle {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.card-header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.card-header-icon {
    width: 28px;
    height: 28px;
    background: rgba(0, 120, 212, 0.15);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
}

.card-header-icon svg {
    width: 14px;
    height: 14px;
}

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.data-points-count {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* Chart */
.chart-container {
    position: relative;
    height: 300px;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--color-bg-layer2);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.stat-icon svg {
    width: 18px;
    height: 18px;
}

.stat-card-success .stat-icon {
    background: rgba(108, 203, 95, 0.15);
    color: var(--color-success);
}

.stat-card-warning .stat-icon {
    background: rgba(255, 185, 0, 0.15);
    color: var(--color-warning);
}

.stat-card-info .stat-icon {
    background: rgba(0, 120, 212, 0.15);
    color: var(--color-primary);
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.stat-card-success .stat-value {
    color: var(--color-success);
}

.stat-card-warning .stat-value {
    color: var(--color-warning);
}

.stat-card-info .stat-value {
    color: var(--color-primary);
}

/* Info Card */
.card-info {
    background: var(--color-bg-layer2);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.info-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.info-value {
    font-size: 14px;
    color: var(--color-text-primary);
    font-weight: 500;
}

/* Footer */
.footer {
    margin-top: var(--spacing-xxxl);
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-lg);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .logo-section {
        flex-direction: column;
        text-align: center;
    }
    
    .card-gradient {
        flex-direction: column;
        text-align: center;
    }
    
    .card-gradient-alt {
        flex-direction: column;
        text-align: center;
    }
    
    .card-value {
        justify-content: center;
    }
    
    .stats-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 250px;
    }
}

/* Loading Animation */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading {
    background: linear-gradient(
        90deg,
        var(--color-bg-layer2) 0%,
        var(--color-bg-layer3) 50%,
        var(--color-bg-layer2) 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}