/* ===== Dashboard Layout ===== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-base);
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.sidebar-header .s-logo {
    width: 40px;
    height: 40px;
    background: var(--gradient-blue);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    flex-shrink: 0;
}

.sidebar-header .s-text h3 {
    font-size: 0.9rem;
    line-height: 1.2;
}

.sidebar-header .s-text p {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md) var(--space-sm);
}

.nav-section {
    margin-bottom: var(--space-lg);
}

.nav-section-title {
    padding: 0 var(--space-md);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 10px var(--space-md);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 450;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(79, 140, 255, 0.12);
    color: var(--accent-blue);
    font-weight: 500;
}

.nav-item .nav-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm);
}

.sidebar-user .avatar {
    width: 36px;
    height: 36px;
    background: var(--gradient-purple);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.sidebar-user .user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user .user-info .name {
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user .user-info .role-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 4px;
    transition: color var(--transition-fast);
}

.btn-logout:hover {
    color: var(--accent-coral);
}

/* Main Content */
.main-content {
    flex: 1;
    min-width: 0;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Top Header */
.top-header {
    height: var(--header-height);
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 50;
}

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

.header-left h2 {
    font-size: 1.15rem;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 4px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Page Content */
.page-content {
    flex: 1;
    min-width: 0;
    padding: var(--space-xl);
    animation: fadeIn 0.3s ease;
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.kpi-card {
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
}

.kpi-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    border-radius: 0 0 0 80px;
    opacity: 0.08;
}

.kpi-card.blue::after {
    background: var(--accent-blue);
}

.kpi-card.emerald::after {
    background: var(--accent-emerald);
}

.kpi-card.coral::after {
    background: var(--accent-coral);
}

.kpi-card.amber::after {
    background: var(--accent-amber);
}

.kpi-card.purple::after {
    background: var(--accent-purple);
}

.kpi-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.kpi-value {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.kpi-value.blue {
    color: var(--accent-blue);
}

.kpi-value.emerald {
    color: var(--accent-emerald);
}

.kpi-value.coral {
    color: var(--accent-coral);
}

.kpi-value.amber {
    color: var(--accent-amber);
}

.kpi-value.purple {
    color: var(--accent-purple);
}

.kpi-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.chart-card {
    padding: var(--space-lg);
}

.chart-card h3 {
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
}

.chart-wrapper {
    position: relative;
    height: 250px;
}

/* Alerts */
.alerts-section {
    margin-bottom: var(--space-xl);
}

.alert-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
    font-size: 0.85rem;
}

.alert-item.warning {
    background: rgba(251, 191, 36, 0.08);
    border-left: 3px solid var(--accent-amber);
}

.alert-item.danger {
    background: rgba(255, 107, 107, 0.08);
    border-left: 3px solid var(--accent-coral);
}

.alert-item.info {
    background: rgba(79, 140, 255, 0.08);
    border-left: 3px solid var(--accent-blue);
}

.alert-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* Mobile Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.show {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-toggle {
        display: block;
    }

    .top-header {
        padding: 0 var(--space-md);
    }

    .page-content {
        padding: var(--space-md);
    }

    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }
}