:root {
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --transition-speed: 0.3s;
    --border-radius-card: 18px;
    --font-family: 'Inter', sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--heading-color);
}

/* Layout */
.wrapper {
    min-height: 100vh;
}

/* Sidebar */
#sidebar {
    width: var(--sidebar-width);
    background-color: var(--card-bg);
    border-right: 1px solid var(--border-color);
    transition: width var(--transition-speed);
    height: 100vh;
    position: sticky;
    top: 0;
    z-index: 1040;
    display: flex;
    flex-direction: column;
}

#sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    width: 30px;
    height: 30px;
    margin-right: 15px;
}

#sidebar.collapsed .sidebar-title {
    display: none;
}

.nav-item-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-item-link:hover, .nav-item-link.active {
    background-color: var(--hover-bg);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.nav-item-link i {
    font-size: 1.2rem;
    margin-right: 15px;
}

#sidebar.collapsed .nav-item-link span {
    display: none;
}

/* Navbar */
.top-navbar {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 25px;
    position: sticky;
    top: 0;
    z-index: 1030;
}

/* Cards & Widgets */
.dashboard-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    padding: 20px;
    margin-bottom: 24px;
    transition: transform 0.2s, box-shadow 0.2s;
    height: calc(100% - 24px);
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.kpi-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kpi-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

.kpi-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Charts Container */
.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

/* Loading */
#loading-spinner {
    background-color: var(--loading-bg);
    backdrop-filter: blur(5px);
}

/* Maps */
#map {
    height: 400px;
    border-radius: 12px;
    z-index: 1;
}

/* Tables */
table.dataTable {
    color: var(--text-color) !important;
}
.dataTables_wrapper .dataTables_length, .dataTables_wrapper .dataTables_filter, .dataTables_wrapper .dataTables_info, .dataTables_wrapper .dataTables_processing, .dataTables_wrapper .dataTables_paginate {
    color: var(--text-color) !important;
}