/**
 * Switch Education Portal - Modern Design System
 * Version: 2.0
 * 
 * A comprehensive design system for consistent, professional UI/UX
 * Focused on education industry with accessibility and usability
 */

/* ==========================================
   COLOR PALETTE
   ========================================== */

:root {
    /* Primary Colors - Education focused, professional */
    --color-primary: #1E5FA8;           /* Deep Professional Blue */
    --color-primary-light: #2B7FD9;     /* Lighter Blue for hover states */
    --color-primary-dark: #154070;      /* Darker Blue for active states */
    --color-primary-subtle: #E8F2FB;    /* Very light blue for backgrounds */
    
    /* Secondary Colors */
    --color-secondary: #34A853;         /* Success Green */
    --color-secondary-light: #48C76C;
    --color-secondary-dark: #2A8742;
    
    /* Accent Colors */
    --color-accent: #FF9800;            /* Warning/Attention Orange */
    --color-accent-light: #FFB547;
    --color-accent-dark: #E68900;
    
    /* Semantic Colors */
    --color-success: #34A853;
    --color-warning: #FF9800;
    --color-error: #DC3545;
    --color-info: #17A2B8;
    
    /* Neutral Colors */
    --color-gray-900: #1A1A1A;         /* Almost black for primary text */
    --color-gray-800: #333333;         /* Dark gray for secondary text */
    --color-gray-700: #4A4A4A;
    --color-gray-600: #666666;
    --color-gray-500: #999999;
    --color-gray-400: #CCCCCC;
    --color-gray-300: #E0E0E0;
    --color-gray-200: #F0F0F0;
    --color-gray-100: #F8F8F8;
    --color-white: #FFFFFF;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Spacing Scale (8px base) */
    --space-xs: 0.25rem;    /* 4px */
    --space-sm: 0.5rem;     /* 8px */
    --space-md: 1rem;       /* 16px */
    --space-lg: 1.5rem;     /* 24px */
    --space-xl: 2rem;       /* 32px */
    --space-2xl: 3rem;      /* 48px */
    --space-3xl: 4rem;      /* 64px */
    
    /* Border Radius */
    --radius-sm: 0.25rem;   /* 4px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-full: 9999px;  /* Full circle */
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    
    /* Font Sizes */
    --text-xs: 0.75rem;     /* 12px */
    --text-sm: 0.875rem;    /* 14px */
    --text-base: 1rem;      /* 16px */
    --text-lg: 1.125rem;    /* 18px */
    --text-xl: 1.25rem;     /* 20px */
    --text-2xl: 1.5rem;     /* 24px */
    --text-3xl: 1.875rem;   /* 30px */
    --text-4xl: 2.25rem;    /* 36px */
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;
    
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* ==========================================
   GLOBAL RESET & BASE STYLES
   ========================================== */

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-gray-900);
    background-color: var(--color-gray-100);
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--space-md) 0;
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: var(--color-gray-900);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); font-weight: var(--font-medium); }

p {
    margin: 0 0 var(--space-md) 0;
    color: var(--color-gray-800);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ==========================================
   LAYOUT COMPONENTS
   ========================================== */

.page-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-300);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.page-content {
    flex: 1;
    padding: var(--space-xl);
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

.sidebar {
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    width: 280px !important;
    min-width: 280px !important;
    max-width: 280px !important;
    height: 100vh;
    position: sticky;
    top: 0;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    flex-shrink: 0 !important;
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.sidebar-logo {
    max-width: 150px;
    height: auto;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md) 0;
}

/* ==========================================
   CARDS & CONTAINERS
   ========================================== */

.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    transition: box-shadow var(--transition-base);
}

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

/* Page content cards - fill available height */
article > .card {
    display: flex !important;
    flex-direction: column !important;
    height: calc(100vh - 140px) !important;
    margin-bottom: 0 !important;
    padding: 0 !important; /* Remove default padding for full-height cards */
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-gray-200);
    margin-bottom: 0;
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    background-color: var(--color-white);
}

/* Page card headers with gradient */
article > .card > .card-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%) !important;
    color: var(--color-white) !important;
    border-bottom: none !important;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
    font-size: var(--text-xl) !important;
    font-weight: var(--font-semibold) !important;
    flex-shrink: 0 !important;
}

/* Also apply gradient to cards inside components within article (e.g., BookingsRequested page) */
article .card > .card-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%) !important;
    color: var(--color-white) !important;
    border-bottom: none !important;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
    font-size: var(--text-xl) !important;
    font-weight: var(--font-semibold) !important;
    flex-shrink: 0 !important;
}

article > .card > .card-header i {
    font-size: var(--text-2xl);
    opacity: 0.9 !important;
}

article .card > .card-header i {
    font-size: var(--text-2xl);
    opacity: 0.9 !important;
    color: var(--color-white) !important;
}

.card-header i {
    opacity: 0.8;
}

/* Dashboard-specific card header with gradient */
.dashboard-panel-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-bottom: none;
    margin-bottom: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
}

.dashboard-panel-header i {
    font-size: var(--text-2xl);
    opacity: 0.9;
}

.card-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin: 0;
}

.card-body {
    padding: 0;
}

/* ==========================================
   DIALOG / MODAL STYLING
   ========================================== */

/* Dialog headers with gradient background */
.e-dialog .e-dlg-header-content,
.e-dlg-header-content {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%) !important;
    color: var(--color-white) !important;
    border-bottom: none !important;
    padding: var(--space-lg) !important;
}

/* Dialog header text */
.e-dialog .e-dlg-header,
.e-dlg-header {
    color: var(--color-white) !important;
    font-size: var(--text-xl) !important;
    font-weight: var(--font-semibold) !important;
}

/* Dialog close button - white on blue background */
.e-dialog .e-dlg-header-content .e-btn.e-dlg-closeicon-btn,
.e-dlg-header-content .e-btn.e-dlg-closeicon-btn {
    color: var(--color-white) !important;
    background: transparent !important;
    border: none !important;
}

.e-dialog .e-dlg-header-content .e-btn.e-dlg-closeicon-btn:hover,
.e-dlg-header-content .e-btn.e-dlg-closeicon-btn:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    color: var(--color-white) !important;
}

/* Dialog close icon */
.e-dialog .e-dlg-header-content .e-btn.e-dlg-closeicon-btn .e-icon-dlg-close,
.e-dlg-header-content .e-btn.e-dlg-closeicon-btn .e-icon-dlg-close {
    color: var(--color-white) !important;
    font-size: var(--text-xl) !important;
}

/* Dialog content area */
.e-dialog .e-dlg-content,
.e-dlg-content {
    padding: var(--space-lg) !important;
}

/* Dialog footer buttons */
.e-dialog .e-footer-content,
.e-footer-content {
    padding: var(--space-md) var(--space-lg) !important;
    border-top: 1px solid var(--color-gray-200) !important;
    display: flex !important;
    gap: var(--space-md) !important;
    justify-content: flex-end !important;
}

/* Ensure dialog buttons have proper styling */
.e-dialog .e-footer-content .e-btn,
.e-footer-content .e-btn {
    min-width: 100px !important;
}

/* Syncfusion primary button styling */
.e-btn.e-primary,
.e-btn.e-success {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: var(--color-white) !important;
}

.e-btn.e-primary:hover,
.e-btn.e-success:hover {
    background-color: var(--color-primary-light) !important;
    border-color: var(--color-primary-light) !important;
    color: var(--color-white) !important;
}

/* Syncfusion outline button styling */
.e-btn.e-outline {
    background-color: transparent !important;
    border-color: var(--color-gray-400) !important;
    color: var(--color-gray-700) !important;
}

.e-btn.e-outline:hover {
    background-color: var(--color-gray-100) !important;
    border-color: var(--color-gray-500) !important;
}

/* Syncfusion danger button */
.e-btn.e-danger {
    background-color: var(--color-error) !important;
    border-color: var(--color-error) !important;
    color: var(--color-white) !important;
}

.e-btn.e-danger:hover {
    background-color: #C82333 !important;
    border-color: #C82333 !important;
}

/* Calendar header styling for dialogs */
.e-calendar .e-header,
.e-calendar .e-header .e-title,
.e-calendar .e-header .e-icon-container {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%) !important;
    color: var(--color-white) !important;
}

.e-calendar .e-header .e-prev,
.e-calendar .e-header .e-next {
    color: var(--color-white) !important;
}

.e-calendar .e-header .e-prev:hover,
.e-calendar .e-header .e-next:hover {
    background: rgba(255, 255, 255, 0.2) !important;
}

/* Page card body - flexible height */
article > .card > .card-body {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    padding: var(--space-lg) !important;
    overflow: hidden !important;
}

/* Grid wrapper inside cards - fills available space */
.grid-wrapper {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    padding: var(--space-lg) !important;
    overflow: hidden !important;
    display: flex !important;
    flex-direction: column !important;
}

/* Spinner wrapper for loading states */
.spinner-wrapper {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    min-height: 300px !important;
    padding: var(--space-3xl) !important;
    flex: 1 1 auto !important;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
    color: var(--color-primary);
}

.card-footer {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-gray-200);
    margin-top: var(--space-lg);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
}

/* Dashboard specific cards */
.stat-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    border-left: 4px solid var(--color-primary);
}

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

.stat-card-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    margin: 0;
    line-height: 1;
}

.stat-card-label {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--space-sm);
    font-weight: var(--font-medium);
}

.stat-card-trend {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
    font-size: var(--text-sm);
}

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

.stat-card-trend.negative {
    color: var(--color-error);
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Button Variants */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    background-color: var(--color-primary-dark);
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-white);
    border-color: var(--color-secondary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-secondary-light);
    border-color: var(--color-secondary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-primary-subtle);
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-gray-700);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-gray-200);
}

.btn-danger {
    background-color: var(--color-error);
    color: var(--color-white);
    border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
    background-color: #C82333;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Custom button width class - force exact sizing */
.btn-width,
.e-btn.btn-width,
button.btn-width {
    width: 90px !important;
    min-width: 90px !important;
    max-width: 90px !important;
    box-sizing: border-box !important;
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-lg);
}

.btn-icon {
    padding: var(--space-sm);
    aspect-ratio: 1;
}

/* ==========================================
   NAVIGATION
   ========================================== */

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    border-radius: var(--radius-md);
    margin: var(--space-xs) var(--space-md);
    transition: all var(--transition-fast);
    font-weight: var(--font-medium);
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    text-decoration: none;
    transform: translateX(4px);
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.nav-link-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Top navigation */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    background: var(--color-white);
}

.top-nav-user {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
}

/* ==========================================
   FORMS
   ========================================== */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-800);
    font-size: var(--text-sm);
}

.form-label-required::after {
    content: " *";
    color: var(--color-error);
}

.form-control {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-400);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
}

.form-control:disabled {
    background-color: var(--color-gray-100);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-control.is-invalid {
    border-color: var(--color-error);
}

.form-control.is-valid {
    border-color: var(--color-success);
}

.form-text {
    display: block;
    margin-top: var(--space-xs);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.form-error {
    display: block;
    margin-top: var(--space-xs);
    font-size: var(--text-sm);
    color: var(--color-error);
}

.form-success {
    display: block;
    margin-top: var(--space-xs);
    font-size: var(--text-sm);
    color: var(--color-success);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

/* ==========================================
   TABLES
   ========================================== */

.table-container {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.table thead {
    background: var(--color-gray-100);
}

.table th {
    padding: var(--space-md);
    text-align: left;
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
    text-transform: uppercase;
    font-size: var(--text-xs);
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--color-gray-300);
}

.table td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-gray-200);
}

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

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

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ==========================================
   BADGES & PILLS
   ========================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    line-height: 1;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.badge-success {
    background-color: #D4EDDA;
    color: #155724;
}

.badge-warning {
    background-color: #FFF3CD;
    color: #856404;
}

.badge-danger {
    background-color: #F8D7DA;
    color: #721C24;
}

.badge-info {
    background-color: #D1ECF1;
    color: #0C5460;
}

/* ==========================================
   ALERTS
   ========================================== */

.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--space-lg);
}

.alert-success {
    background-color: #D4EDDA;
    border-color: var(--color-success);
    color: #155724;
}

.alert-warning {
    background-color: #FFF3CD;
    border-color: var(--color-warning);
    color: #856404;
}

.alert-danger {
    background-color: #F8D7DA;
    border-color: var(--color-error);
    color: #721C24;
}

.alert-info {
    background-color: #D1ECF1;
    border-color: var(--color-info);
    color: #0C5460;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

/* Spacing */
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-xs) !important; }
.mt-2 { margin-top: var(--space-sm) !important; }
.mt-3 { margin-top: var(--space-md) !important; }
.mt-4 { margin-top: var(--space-lg) !important; }
.mt-5 { margin-top: var(--space-xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-xs) !important; }
.mb-2 { margin-bottom: var(--space-sm) !important; }
.mb-3 { margin-bottom: var(--space-md) !important; }
.mb-4 { margin-bottom: var(--space-lg) !important; }
.mb-5 { margin-bottom: var(--space-xl) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--space-xs) !important; }
.p-2 { padding: var(--space-sm) !important; }
.p-3 { padding: var(--space-md) !important; }
.p-4 { padding: var(--space-lg) !important; }
.p-5 { padding: var(--space-xl) !important; }

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flex */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.justify-start { justify-content: flex-start !important; }
.justify-center { justify-content: center !important; }
.justify-end { justify-content: flex-end !important; }
.justify-between { justify-content: space-between !important; }
.align-start { align-items: flex-start !important; }
.align-center { align-items: center !important; }
.align-end { align-items: flex-end !important; }
.gap-1 { gap: var(--space-xs) !important; }
.gap-2 { gap: var(--space-sm) !important; }
.gap-3 { gap: var(--space-md) !important; }
.gap-4 { gap: var(--space-lg) !important; }

/* Text */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-bold { font-weight: var(--font-bold) !important; }
.text-semibold { font-weight: var(--font-semibold) !important; }
.text-normal { font-weight: var(--font-normal) !important; }
.text-uppercase { text-transform: uppercase !important; }
.text-capitalize { text-transform: capitalize !important; }

/* Colors */
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-danger { color: var(--color-error) !important; }
.text-muted { color: var(--color-gray-600) !important; }

.bg-primary { background-color: var(--color-primary) !important; }
.bg-light { background-color: var(--color-gray-100) !important; }
.bg-white { background-color: var(--color-white) !important; }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-none { box-shadow: none !important; }

/* Borders */
.border { border: 1px solid var(--color-gray-300) !important; }
.border-top { border-top: 1px solid var(--color-gray-300) !important; }
.border-bottom { border-bottom: 1px solid var(--color-gray-300) !important; }
.border-0 { border: none !important; }

.rounded { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

/* Width */
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
    .page-content {
        padding: var(--space-md);
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .card {
        padding: var(--space-lg);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stat-card-value {
        font-size: var(--text-3xl);
    }
}

/* ==========================================
   ANIMATIONS
   ========================================== */

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-base);
}

.slide-down {
    animation: slideDown var(--transition-base);
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-lg);
    text-decoration: none;
    z-index: var(--z-tooltip);
}

.skip-link:focus {
    top: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ==========================================
   NAVIGATION MENU GLOBAL OVERRIDES
   ========================================== */

/* Navbar brand - larger text */
.sidebar .navbar-brand {
    font-size: var(--text-xl) !important;
    font-weight: var(--font-semibold) !important;
    padding: var(--space-xl) var(--space-lg) !important;
    min-height: 70px !important;
    white-space: nowrap !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.sidebar .navbar-brand i {
    font-size: var(--text-3xl) !important;
}

/* Switch Education Logo Branding */
.navbar-logo {
    width: 220px !important;
    height: auto !important;
    max-width: 100% !important;
    object-fit: contain !important;
}

/* Nav items - larger text and icons */
.sidebar .nav-item {
    font-size: var(--text-base) !important;
}

.sidebar .nav-item a {
    font-size: var(--text-base) !important;
    min-height: 52px !important;
    padding: var(--space-md) var(--space-lg) !important;
}

.sidebar .nav-item a i,
.sidebar .nav-item a .oi {
    width: 28px !important;
    font-size: var(--text-xl) !important;
}

/* Section headers */
.sidebar .nav-section-header {
    font-size: var(--text-sm) !important;
}

.sidebar .nav-section-header i {
    font-size: var(--text-base) !important;
}