/**
 * Modern Theme - Interactive Email Application
 * Complete redesign for entire application
 * Modern, clean, professional design system
 */

/* ============================================
   1. ROOT VARIABLES & THEME COLORS
   ============================================ */

:root {
    /* Primary Colors - Purple Gradient Theme */
    --primary: #667eea;
    --primary-dark: #5568d3;
    --primary-light: #7c8cff;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Secondary Colors */
    --secondary: #36b9cc;
    --secondary-dark: #2c9faf;
    --secondary-light: #54c5d6;
    
    /* Status Colors */
    --success: #1cc88a;
    --success-dark: #17a673;
    --success-light: #3dd598;
    
    --danger: #e74a3b;
    --danger-dark: #d13727;
    --danger-light: #ea6153;
    
    --warning: #f6c23e;
    --warning-dark: #dda20a;
    --warning-light: #f7cd5b;
    
    --info: #36b9cc;
    --info-dark: #2c9faf;
    --info-light: #54c5d6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-100: #f8f9fc;
    --gray-200: #eaecf4;
    --gray-300: #dddfeb;
    --gray-400: #d1d3e2;
    --gray-500: #b7b9cc;
    --gray-600: #858796;
    --gray-700: #6e707e;
    --gray-800: #5a5c69;
    --gray-900: #3a3b45;
    --black: #000000;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #1cc88a 0%, #13855c 100%);
    --gradient-danger: linear-gradient(135deg, #e74a3b 0%, #c92a1d 100%);
    --gradient-warning: linear-gradient(135deg, #f6c23e 0%, #d4a31c 100%);
    --gradient-info: linear-gradient(135deg, #36b9cc 0%, #258391 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 3px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 5px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 15px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
}

/* ============================================
   2. GLOBAL OVERRIDES
   ============================================ */

body {
    font-family: var(--font-family);
    background-color: var(--gray-100);
    color: var(--gray-800);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

* {
    outline: none !important;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* ============================================
   3. SIDEBAR REDESIGN
   ============================================ */

.sidebar {
    background: var(--gradient-primary) !important;
    box-shadow: var(--shadow-lg);
    width: 260px !important;
}

.sidebar-brand {
    height: 80px;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand-icon {
    font-size: 2rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px;
    border-radius: var(--radius-md);
}

.sidebar-brand-text {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* Sidebar Navigation Items */
.sidebar .nav-item {
    margin: 4px 12px;
}

.sidebar .nav-link {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.sidebar .nav-link i {
    font-size: 1.1rem;
    margin-right: 12px;
    min-width: 24px;
    text-align: center;
}

.sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
    color: var(--white) !important;
}

.sidebar .nav-item.active .nav-link {
    background: rgba(255, 255, 255, 0.25);
    color: var(--white) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Collapsed Sidebar Fixes */
.sidebar.toggled .nav-item {
    margin: 4px 8px;
}

.sidebar.toggled .nav-link {
    padding: 12px;
    text-align: center;
    justify-content: center;
}

.sidebar.toggled .nav-link i {
    margin-right: 0;
}

.sidebar.toggled .nav-item.active .nav-link {
    transform: none;
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
}

.sidebar.toggled .nav-link:hover {
    transform: scale(1.05);
}

.sidebar.toggled .sidebar-brand-text {
    display: none;
}

.sidebar.toggled .sidebar-brand-icon {
    margin: 0 auto;
}

.sidebar .sidebar-divider {
    border-color: rgba(255, 255, 255, 0.15);
    margin: 12px 0;
}

/* Sidebar Toggle Button */
#sidebarToggle {
    background: rgba(255, 255, 255, 0.2);
    width: 40px;
    height: 40px;
    transition: all var(--transition-base);
}

#sidebarToggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* ============================================
   4. TOPBAR REDESIGN
   ============================================ */

.topbar {
    height: 80px;
    background: var(--white) !important;
    box-shadow: var(--shadow-md);
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: 9998;
    overflow: visible !important;
    transform: translateZ(0);
    isolation: isolate;
}

.topbar h2 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    font-size: var(--font-size-2xl);
    margin: 0;
}

.topbar .navbar-nav {
    position: static;
}

/* User Dropdown */
.topbar .nav-link {
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.topbar .nav-link:hover {
    background: var(--gray-100);
}

.topbar .img-profile {
    width: 45px;
    height: 45px;
    border: 3px solid var(--primary);
    box-shadow: var(--shadow-sm);
}

.topbar .dropdown-menu {
    border-radius: var(--radius-md);
    border: none;
    box-shadow: var(--shadow-lg);
    margin-top: 10px;
    z-index: 10000 !important;
    position: absolute !important;
}

.topbar .dropdown-item {
    padding: 12px 20px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
    margin: 4px 8px;
    position: relative;
}

.topbar .dropdown-item:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateX(5px);
}

.topbar .dropdown-item i {
    margin-right: 10px;
    width: 20px;
}

/* Dropdown Menu Z-Index Fix - Must be higher than modal backdrop (1040) and other elements */
.dropdown-menu {
    z-index: 10000 !important;
    position: absolute !important;
    transform: translateZ(0) !important;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.dropdown-menu.show {
    z-index: 10000 !important;
    transform: translateZ(0) !important;
}

.nav-item.dropdown {
    position: relative;
    z-index: 9999;
    transform: translateZ(0);
}

.nav-item.dropdown.show {
    z-index: 10001 !important;
    transform: translateZ(0);
}

/* Topbar dropdowns specifically */
.topbar .dropdown,
.topbar .nav-item.dropdown {
    z-index: 9999 !important;
    transform: translateZ(0);
}

.topbar .dropdown.show,
.topbar .nav-item.dropdown.show {
    z-index: 10001 !important;
    transform: translateZ(0);
}

.topbar .dropdown-menu {
    z-index: 10000 !important;
    transform: translateZ(0) !important;
}

/* Ensure parent containers don't clip dropdowns */
#wrapper,
#content-wrapper,
#content {
    overflow: visible !important;
}

.navbar {
    overflow: visible !important;
}

/* Reduce z-index of other elements that might interfere */
.card,
.table,
.dataTables_wrapper,
.table-responsive,
.card-body,
.container,
.container-fluid,
.row,
.col,
[class*="col-"] {
    position: relative;
    z-index: 1 !important;
    transform: translateZ(0);
}

/* Ensure sidebar doesn't cover dropdowns */
.sidebar {
    z-index: 10 !important;
    transform: translateZ(0);
}

/* Fix stacking context issues with cards that have transforms */
.dashboard-card,
.card:hover {
    z-index: 2 !important;
}

/* Ensure cards don't interfere with dropdowns */
.card {
    isolation: auto;
}

/* Make sure dropdowns in any context appear on top */
body .dropdown-menu,
body .dropdown-menu.show,
.topbar .dropdown-menu.dropdown-menu-right {
    z-index: 10000 !important;
    position: absolute !important;
    transform: translateZ(0) !important;
    isolation: isolate;
}

/* ============================================
   5. DASHBOARD CARDS REDESIGN
   ============================================ */

.dashboard-card {
    border-radius: var(--radius-lg);
    border: none;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    overflow: hidden;
    cursor: pointer;
    position: relative;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.dashboard-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.dashboard-card:hover::before {
    opacity: 1;
}

.dashboard-card .card-body {
    padding: var(--spacing-lg);
}

/* Card Icon Styling */
.dashboard-card i {
    font-size: 2rem;
    opacity: 0.8;
    transition: all var(--transition-base);
}

.dashboard-card:hover i {
    transform: scale(1.2) rotate(10deg);
    opacity: 1;
}

/* Card Title */
.dashboard-card .text-uppercase {
    font-size: var(--font-size-xs);
    letter-spacing: 0.5px;
    font-weight: 700;
    margin-bottom: 8px;
}

/* Card Value */
.dashboard-card .h5 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 0;
}

/* Gradient Borders for Dashboard Cards */
.card.border-left-primary {
    border-left: 5px solid var(--primary);
    background: linear-gradient(to right, rgba(102, 126, 234, 0.05) 0%, transparent 100%);
}

.card.border-left-success {
    border-left: 5px solid var(--success);
    background: linear-gradient(to right, rgba(28, 200, 138, 0.05) 0%, transparent 100%);
}

.card.border-left-danger {
    border-left: 5px solid var(--danger);
    background: linear-gradient(to right, rgba(231, 74, 59, 0.05) 0%, transparent 100%);
}

.card.border-left-warning {
    border-left: 5px solid var(--warning);
    background: linear-gradient(to right, rgba(246, 194, 62, 0.05) 0%, transparent 100%);
}

.card.border-left-info {
    border-left: 5px solid var(--info);
    background: linear-gradient(to right, rgba(54, 185, 204, 0.05) 0%, transparent 100%);
}

/* ============================================
   6. MODERN CARDS
   ============================================ */

.card {
    border-radius: var(--radius-lg);
    border: none;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: var(--gradient-primary);
    color: var(--white);
    font-weight: 700;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border: none;
}

.card-header h5:not([class*="text-"]), 
.card-header h6:not([class*="text-"]) {
    margin: 0;
    color: var(--white);
}

/* Allow text utility classes to override card header colors */
.card-header .text-primary {
    color: #4e73df !important;
}

.card-header .text-muted {
    color: #858796 !important;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    background: var(--gray-100);
    border-top: 1px solid var(--gray-300);
    padding: var(--spacing-lg);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ============================================
   7. MODERN BUTTONS
   ============================================ */

.btn {
    border-radius: var(--radius-md);
    padding: 8px 20px;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn:active {
    transform: translateY(0);
}

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

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

.btn-success {
    background: var(--gradient-success);
}

.btn-danger {
    background: var(--gradient-danger);
}

.btn-warning {
    background: var(--gradient-warning);
    color: var(--white);
}

.btn-info {
    background: var(--gradient-info);
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

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

/* Icon buttons */
.btn i {
    font-size: 0.875rem;
}

.btn-sm {
    padding: 5px 12px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 12px 28px;
    font-size: var(--font-size-base);
}

/* Icon Split Buttons - Compact Styling */
.btn-icon-split {
    padding: 0;
    overflow: hidden;
    display: inline-flex;
    align-items: stretch;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.btn-icon-split .icon {
    background: rgba(0, 0, 0, 0.1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
}

.btn-icon-split .text {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
}

.btn-icon-split:hover {
    transform: translateY(-2px);
}

.btn-icon-split.btn-sm .icon {
    padding: 6px 10px;
}

.btn-icon-split.btn-sm .text {
    padding: 6px 12px;
}

/* ============================================
   8. MODERN TABLES
   ============================================ */

.table {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.table thead {
    background: var(--gradient-primary);
}

.table thead th {
    color: var(--white);
    font-weight: 700;
    padding: var(--spacing-lg);
    border: none;
    text-transform: uppercase;
    font-size: var(--font-size-xs);
    letter-spacing: 1px;
}

.table tbody tr {
    transition: all var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--gray-100);
    transform: scale(1.005);
}

.table tbody td {
    padding: var(--spacing-md);
    vertical-align: middle;
    border-bottom: 1px solid var(--gray-200);
}

/* Striped Tables */
.table-striped tbody tr:nth-of-type(odd) {
    background: var(--gray-100);
}

/* Bordered Tables */
.table-bordered {
    border: 1px solid var(--gray-300);
}

/* DataTables Integration */
.dataTables_wrapper {
    padding: var(--spacing-lg);
}

.dataTables_wrapper .dataTables_filter input {
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-300);
    padding: 8px 16px;
    transition: all var(--transition-base);
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.dataTables_wrapper .dataTables_length select {
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-300);
    padding: 6px 12px;
}

/* ============================================
   9. FORMS & INPUTS
   ============================================ */

.form-control {
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-300);
    padding: 12px 16px;
    transition: all var(--transition-base);
    font-size: var(--font-size-base);
    line-height: 1.5;
    min-height: 48px;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.input-group {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.input-group-text {
    background: var(--gray-200);
    border: 2px solid var(--gray-300);
    border-right: none;
    font-weight: 600;
}

/* Select Dropdowns */
select.form-control {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23667eea' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 14px;
    padding: 12px 45px 12px 16px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    min-height: 48px;
    line-height: 1.5;
    height: auto;
}

select.form-control:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23667eea' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
}

/* Select option styling */
select.form-control option {
    padding: 10px;
    background: white;
    color: var(--gray-800);
}

select.form-control option:hover {
    background: var(--gray-100);
}

/* Multiple select */
select.form-control[multiple] {
    background-image: none;
    padding-right: 16px;
    min-height: 120px;
}

select.form-control[multiple] option {
    padding: 8px 12px;
    border-radius: 4px;
    margin: 2px;
}

/* Select sizing */
select.form-control-sm {
    min-height: 38px;
    height: auto;
    padding: 8px 38px 8px 12px;
    font-size: 14px;
    background-size: 12px;
    background-position: right 12px center;
    line-height: 1.4;
}

select.form-control-lg {
    min-height: 56px;
    height: auto;
    padding: 16px 50px 16px 20px;
    font-size: 18px;
    background-size: 16px;
    background-position: right 20px center;
    line-height: 1.5;
}

/* Textarea */
textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* ============================================
   10. MODALS
   ============================================ */

.modal-content {
    border-radius: var(--radius-lg);
    border: none;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    border: none;
}

.modal-header .close {
    color: var(--white);
    opacity: 0.8;
    text-shadow: none;
}

.modal-header .close:hover {
    opacity: 1;
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    border-top: 1px solid var(--gray-200);
    padding: var(--spacing-lg) var(--spacing-xl);
}

/* ============================================
   11. ALERTS & NOTIFICATIONS
   ============================================ */

.alert {
    border-radius: var(--radius-md);
    border: none;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: var(--gradient-success);
    color: var(--white);
}

.alert-danger {
    background: var(--gradient-danger);
    color: var(--white);
}

.alert-warning {
    background: var(--gradient-warning);
    color: var(--white);
}

.alert-info {
    background: var(--gradient-info);
    color: var(--white);
}

/* ============================================
   12. BREADCRUMBS
   ============================================ */

.breadcrumb {
    background: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.breadcrumb-item a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--primary-dark);
}

.breadcrumb-item.active {
    color: var(--gray-600);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--gray-400);
}

/* ============================================
   13. BADGES & LABELS
   ============================================ */

.badge {
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-xs);
}

.badge-primary {
    background: var(--primary);
}

.badge-success {
    background: var(--success);
}

.badge-danger {
    background: var(--danger);
}

.badge-warning {
    background: var(--warning);
    color: var(--white);
}

.badge-info {
    background: var(--info);
}

/* ============================================
   14. PAGINATION
   ============================================ */

.pagination {
    gap: 6px;
}

.page-link {
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-300);
    color: var(--primary);
    padding: 8px 16px;
    transition: all var(--transition-base);
}

.page-link:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.page-item.active .page-link {
    background: var(--gradient-primary);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   15. LOADING STATES
   ============================================ */

.loader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loader::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   16. ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.fade-in-up {
    animation: fadeInUp 0.5s ease;
}

.slide-in-right {
    animation: slideInRight 0.5s ease;
}

/* ============================================
   17. UTILITY CLASSES
   ============================================ */

/* Spacing Utilities */
.mt-custom { margin-top: var(--spacing-lg); }
.mb-custom { margin-bottom: var(--spacing-lg); }
.p-custom { padding: var(--spacing-lg); }

/* Shadow Utilities */
.shadow-custom-sm { box-shadow: var(--shadow-sm); }
.shadow-custom-md { box-shadow: var(--shadow-md); }
.shadow-custom-lg { box-shadow: var(--shadow-lg); }

/* Rounded Utilities */
.rounded-custom { border-radius: var(--radius-md); }
.rounded-custom-lg { border-radius: var(--radius-lg); }

/* Text Gradient */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hover Lift Effect */
.hover-lift {
    transition: transform var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

/* ============================================
   18. RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .sidebar {
        width: 100% !important;
    }
    
    .topbar {
        padding: 0 var(--spacing-md);
    }
    
    .topbar h2 {
        font-size: var(--font-size-lg);
    }
    
    .card-body {
        padding: var(--spacing-lg);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .table {
        font-size: var(--font-size-sm);
    }
}

/* ============================================
   19. PRINT STYLES
   ============================================ */

@media print {
    .sidebar,
    .topbar,
    .btn,
    .modal {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}

/* ============================================
   20. SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-200);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}