:root {
    /* Modern Color Palette */
    --primary: #4361ee;
    --primary-hover: #3a56d4;
    --secondary: #e9ecef;
    --success: #2ec4b6;
    --info: #3a86ff;
    --warning: #ff9f1c;
    --danger: #ef233c;
    --dark: #2b2d42;
    --light: #f8f9fa;
    --body-bg: #f3f4f6;
    --card-bg: #ffffff;
    --text-main: #2b2d42;
    --text-muted: #8d99ae;

    /* Shadows & Radius */
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --card-hover-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    --border-radius: 16px;
    --btn-radius: 10px;

    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-bg: #ffffff;
    --sidebar-active-bg: rgba(67, 97, 238, 0.1);
    --sidebar-active-color: var(--primary);
}

body {
    background-color: var(--body-bg);
    color: var(--text-main);
    font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 1rem;
}

/* Layout & Sidebar */
.container-fluid {
    padding-left: 0;
}

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 0;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.02);
    background-color: var(--sidebar-bg);
    width: var(--sidebar-width);
}

.sidebar-sticky {
    position: relative;
    top: 0;
    height: calc(100vh - 48px);
    padding-top: 1.5rem;
    overflow-x: hidden;
    overflow-y: auto;
}

.sidebar .nav-link {
    font-weight: 500;
    color: var(--text-muted);
    padding: 0.8rem 1.5rem;
    margin: 0.2rem 1rem;
    border-radius: var(--btn-radius);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
}

.sidebar .nav-link i {
    margin-right: 12px;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar .nav-link:hover {
    color: var(--primary);
    background-color: rgba(67, 97, 238, 0.05);
}

.sidebar .nav-link.active {
    color: var(--sidebar-active-color);
    background-color: var(--sidebar-active-bg);
    font-weight: 600;
}

.text-muted-light {
    color: #adb5bd;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

main {
    margin-left: var(--sidebar-width);
    padding: 2rem 2.5rem;
    transition: margin-left 0.3s ease;
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.main-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 1.5rem;
}

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

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--dark);
    display: flex;
    align-items: center;
}

.card-header i {
    margin-right: 10px;
    color: var(--primary);
}

.card-body {
    padding: 1.5rem;
}

/* Stat Cards */
.stat-card {
    overflow: hidden;
    position: relative;
}

.stat-card .card-body {
    padding: 1.5rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
}

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

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

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

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

/* Tables */
.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    border-bottom-width: 1px;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 1rem 0.75rem;
}

.table td {
    padding: 1rem 0.75rem;
    vertical-align: middle;
    color: var(--text-main);
    border-bottom-color: rgba(0, 0, 0, 0.03);
}

/* Buttons */
.btn {
    border-radius: var(--btn-radius);
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 4px 10px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(67, 97, 238, 0.4);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

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

/* Forms */
.form-control,
.form-select {
    border-radius: var(--btn-radius);
    border: 1px solid #e0e0e0;
    padding: 0.7rem 1rem;
    background-color: #fcfcfc;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1);
    background-color: #fff;
}

/* Badges */
.badge {
    padding: 0.5em 0.8em;
    border-radius: 6px;
    font-weight: 600;
}

/* Utilities */
.bg-white {
    background-color: #fff !important;
}

.shadow-sm {
    box-shadow: var(--card-shadow) !important;
}

/* Dashboard Specific */
.dashboard-widget-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.bg-soft-primary {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary);
}



/* Cards */
.card {
    background-color: var(--card-bg);
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 1.5rem;
}

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

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--dark);
    display: flex;
    align-items: center;
}

.card-header i {
    margin-right: 10px;
    color: var(--primary);
}

.card-body {
    padding: 1.5rem;
}

/* Stat Cards */
.stat-card {
    overflow: hidden;
    position: relative;
}

.stat-card .card-body {
    padding: 1.5rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
}

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

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

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

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

/* Tables */
.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    border-bottom-width: 1px;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 1rem 0.75rem;
}

.table td {
    padding: 1rem 0.75rem;
    vertical-align: middle;
    color: var(--text-main);
    border-bottom-color: rgba(0, 0, 0, 0.03);
}

/* Buttons */
.btn {
    border-radius: var(--btn-radius);
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 4px 10px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(67, 97, 238, 0.4);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

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

/* Forms */
.form-control,
.form-select {
    border-radius: var(--btn-radius);
    border: 1px solid #e0e0e0;
    padding: 0.7rem 1rem;
    background-color: #fcfcfc;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1);
    background-color: #fff;
}

/* Badges */
.badge {
    padding: 0.5em 0.8em;
    border-radius: 6px;
    font-weight: 600;
}

/* Utilities */
.bg-white {
    background-color: #fff !important;
}

.shadow-sm {
    box-shadow: var(--card-shadow) !important;
}

/* Dashboard Specific */
.dashboard-widget-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.bg-soft-primary {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary);
}

.bg-soft-success {
    background-color: rgba(46, 196, 182, 0.1);
    color: var(--success);
}

.bg-soft-warning {
    background-color: rgba(255, 159, 28, 0.1);
    color: var(--warning);
}

.bg-soft-danger {
    background-color: rgba(239, 35, 60, 0.1);
    color: var(--danger);
}

}

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

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

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

/* Tables */
.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    border-bottom-width: 1px;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 1rem 0.75rem;
}

.table td {
    padding: 1rem 0.75rem;
    vertical-align: middle;
    color: var(--text-main);
    border-bottom-color: rgba(0, 0, 0, 0.03);
}

/* Buttons */
.btn {
    border-radius: var(--btn-radius);
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 4px 10px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(67, 97, 238, 0.4);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

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

/* Forms */
.form-control,
.form-select {
    border-radius: var(--btn-radius);
    border: 1px solid #e0e0e0;
    padding: 0.7rem 1rem;
    background-color: #fcfcfc;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1);
    background-color: #fff;
}

/* Badges */
.badge {
    padding: 0.5em 0.8em;
    border-radius: 6px;
    font-weight: 600;
}

/* Utilities */
.bg-white {
    background-color: #fff !important;
}

.shadow-sm {
    box-shadow: var(--card-shadow) !important;
}

/* Dashboard Specific */
.dashboard-widget-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.bg-soft-primary {
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary);
}

.bg-soft-success {
    background-color: rgba(46, 196, 182, 0.1);
    color: var(--success);
}

.bg-soft-warning {
    background-color: rgba(255, 159, 28, 0.1);
    color: var(--warning);
}

.bg-soft-danger {
    background-color: rgba(239, 35, 60, 0.1);
    color: var(--danger);
}

.bg-soft-info {
    background-color: rgba(58, 134, 255, 0.1);
    color: var(--info);
}

/* Collapsible Sidebar Styles */
.sidebar .nav-group-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1.5rem;
    margin: 0.5rem 1rem 0.2rem 1rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    border-radius: var(--btn-radius);
    transition: all 0.2s ease;
}

.sidebar .nav-group-toggle:hover {
    background-color: rgba(0, 0, 0, 0.02);
    color: var(--dark);
}

.sidebar .nav-group-toggle::after {
    content: '\F282';
    /* Bootstrap Icons: chevron-down */
    font-family: 'bootstrap-icons';
    transition: transform 0.3s ease;
    font-size: 0.8rem;
}

.sidebar .nav-group-toggle.collapsed::after {
    transform: rotate(-90deg);
}

.sidebar .nav-group-items {
    padding-left: 0;
    list-style: none;
}

.sidebar .nav-group-items .nav-link {
    padding: 0.6rem 1.5rem 0.6rem 2.5rem;
    /* Indent items */
    font-size: 0.9rem;
    margin: 0.1rem 1rem;
}

.sidebar .nav-group-items .nav-link i {
    font-size: 1rem;
    margin-right: 10px;
    opacity: 0.8;
}

/* Mobile Responsiveness */
@media (max-width: 767.98px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
    }

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

    main {
        margin-left: 0;
        padding: 1.5rem;
    }

    .main-header {
        margin-top: 3rem;
        /* Space for toggle button */
        flex-direction: column;
        align-items: flex-start;
    }

    .main-header h1 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    /* Overlay when sidebar is active */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 99;
    }

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