:root {
    --bg-base: #0B0F19;
    --bg-surface: rgba(17, 24, 39, 0.75);
    --bg-card: rgba(30, 41, 59, 0.6);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(59, 130, 246, 0.3);
    --primary: #3B82F6;
    --primary-gradient: linear-gradient(135deg, #3B82F6 0%, #1D4ED8 100%);
    --accent-green: #10B981;
    --accent-amber: #F59E0B;
    --accent-red: #EF4444;
    --accent-purple: #8B5CF6;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 40%),
                      radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.04) 0%, transparent 40%);
}

/* Glassmorphism Navbar */
.navbar {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    padding: 16px 36px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #60A5FA 0%, #34D399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 8px 16px;
    border-radius: 10px;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
    border-bottom: 2px solid var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.live-badge {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: var(--accent-green);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.7; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.7; }
}

/* Page Container */
.container {
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
    padding: 32px 36px;
    flex: 1;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 28px;
}

.section-title {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 6px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* KPI Summary Cards Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.kpi-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 18px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, border-color 0.2s;
}

.kpi-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-glow);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.kpi-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-icon {
    font-size: 22px;
}

.kpi-value {
    font-size: 32px;
    font-weight: 900;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.kpi-trend {
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.trend-up { color: var(--accent-green); }
.trend-down { color: var(--accent-red); }

/* Content Cards & Tables */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 26px;
    margin-bottom: 28px;
}

.card-title {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Modern Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-glass);
}

.data-table td {
    padding: 16px;
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Category Badges */
.badge-abc {
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 800;
    display: inline-block;
}

.badge-a { background: rgba(16, 185, 129, 0.2); color: #34D399; border: 1px solid rgba(16, 185, 129, 0.4); }
.badge-b { background: rgba(245, 158, 11, 0.2); color: #FBBF24; border: 1px solid rgba(245, 158, 11, 0.4); }
.badge-c { background: rgba(239, 68, 68, 0.2); color: #F87171; border: 1px solid rgba(239, 68, 68, 0.4); }

/* Heatmap Grid */
.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 12px;
    margin-top: 16px;
}

.heatmap-cell {
    border-radius: 12px;
    padding: 14px 10px;
    text-align: center;
    border: 1px solid var(--border-glass);
    transition: transform 0.15s;
}

.heatmap-cell:hover {
    transform: scale(1.05);
}

.heat-0 { background: #131B2E; color: #64748B; }
.heat-1 { background: rgba(59, 130, 246, 0.15); color: #93C5FD; }
.heat-2 { background: rgba(59, 130, 246, 0.3); color: #BFDBFE; }
.heat-3 { background: rgba(16, 185, 129, 0.35); color: #A7F3D0; }
.heat-4 { background: rgba(245, 158, 11, 0.45); color: #FDE68A; }
.heat-5 { background: rgba(239, 68, 68, 0.55); color: #FECACA; font-weight: 800; }

/* Buttons */
.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}