/* ==================== CSS CUSTOM PROPERTIES (THEME VARIABLES) ==================== */
:root {
  /* Dark theme (DEFAULT) */
  --navbar-bg: rgba(23, 23, 26, 0.85);
  --primary-rgb: 244, 72, 43;  
  --mobile-menu-bg: #17171a;
  --bg-body: #17171a;
  --bg-surface: #1e1e21;
  --secondary-rgb: 37, 150, 190;
  --bg-card: #2a2a2d;
  --bg-input: #1e1e21;
  --bg-dark: #17171a;
  --bg-hover: #2a2a2d;
  --text-primary: #f5f5f7;
  --text-secondary: #d1d5db;
  --text-muted: #a1a1aa;
  --text-light: #f5f5f7;
  --border-color: #2a2a2d;
  --border-light: #3a3a3d;
  --shadow: 0 4px 6px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 16px rgba(0,0,0,0.4);
  --primary: #f4482b;
  --primary-dark: #e03d20;
  --primary-light: #ff6b4a;
  --secondary: #2596be;
  --secondary-dark: #1d87ac;
  --success: #10b981;
  --accent: #f59e0b;
  --admin-primary: #9D00FF;
  --admin-light: #b44dff;
  --admin-dark: #7a00cc;
  --gray: #a1a1aa;
  --gray-light: #2a2a2d;
  --gray-dark: #a1a1aa;
  --danger: #ef4444;
  --danger-dark: #dc2626;
}

/* Light theme (when user toggles) */
[data-theme="light"] {
  --navbar-bg: rgba(255, 255, 255, 0.85);
  --mobile-menu-bg: #ffffff;
  --bg-body: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-card: #f1f3f5;
  --bg-input: #e9ecef;
  --bg-dark: #f8f9fa;
  --bg-hover: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #495057;
  --text-muted: #6c757d;
  --text-light: #212529;
  --border-color: #dee2e6;
  --border-light: #e9ecef;
  --shadow: 0 4px 6px rgba(0,0,0,0.05);
  --shadow-hover: 0 8px 16px rgba(0,0,0,0.08);
  --gray: #6c757d;
  --gray-light: #e9ecef;
  --gray-dark: #495057;
}

/* ==================== BASE & RESET ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    letter-spacing: -0.01em;
    font-size: 0.8rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ==================== TYPOGRAPHY - COMPACT ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

h3 {
    font-size: 1rem;
    margin-bottom: 0.35rem;
}

p {
    font-size: 0.75rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.text-muted {
    color: var(--text-muted);
}

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

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

/* ==================== SECTION SPACING - COMPACT ==================== */
section {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

@media (max-width: 768px) {
    section {
        padding-top: 1.5rem;
        padding-bottom: 1.5rem;
    }
}

/* ==================== CONTAINER - COMPACT ==================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 0.75rem;
}

/* ==================== CARDS - ULTRA COMPACT ==================== */
.card, .compact-card, .bg-surface, [class*="bg-gray-800"] {
    background: var(--bg-surface);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    overflow: hidden;
    padding: 0.75rem;
}

.card:hover, .compact-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

/* ==================== STATS CARDS - COMPACT ==================== */
.compact-stat, .stat-card {
    background: var(--bg-surface);
    border-radius: 0.5rem;
    padding: 0.75rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.compact-stat:hover, .stat-card:hover {
    border-color: var(--primary);
    transform: scale(1.02);
}

.stat-number {
    font-size: 1.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

/* ==================== BUTTONS - COMPACT ==================== */
.btn, button, .btn-primary, .btn-secondary, .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 1rem;
    border-radius: 0.375rem;
    font-weight: 600;
    font-size: 0.7rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
}

.btn-primary, .bg-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover, .bg-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(var(--primary-rgb), 0.2);
}

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

.btn-secondary:hover {
    background: var(--secondary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(var(--secondary-rgb), 0.2);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--text-primary);
    padding: 0.35rem 0.9rem;
}

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

/* ==================== ANIMATIONS - SCALED ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

.float {
    animation: float 3s ease-in-out infinite;
}

/* ==================== BADGES - COMPACT ==================== */
.badge, [class*="px-2 py-1"] {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.55rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary, .bg-primary\/10 {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
}

.badge-secondary, .bg-secondary\/10 {
    background: rgba(var(--secondary-rgb), 0.1);
    color: var(--secondary);
}

/* ==================== FORM ELEMENTS - COMPACT ==================== */
.input-field, input, select, textarea, .admin-form-input {
    width: 100%;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.7rem;
    transition: all 0.2s ease;
    background: var(--bg-input);
    color: var(--text-primary);
}

.input-field:focus, input:focus, select:focus, textarea:focus, .admin-form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(var(--primary-rgb), 0.1);
}

/* ==================== FEATURE ICONS - COMPACT ==================== */
.feature-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.feature-icon i, .feature-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.feature-icon.primary {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
}

.feature-icon.secondary {
    background: rgba(var(--secondary-rgb), 0.1);
    color: var(--secondary);
}

/* ==================== GRID LAYOUT - COMPACT GAPS ==================== */
.grid-auto-fit, .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.75rem;
}

/* ==================== MODAL SYSTEM - COMPACT ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    backdrop-filter: blur(4px);
    opacity: 1;
    visibility: visible;
}

.modal-overlay.hidden {
    display: none !important;
    opacity: 0;
    visibility: hidden;
}

.modal-container {
    background: var(--bg-surface);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
    max-width: 400px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-content {
    max-height: calc(85vh - 100px);
    overflow-y: auto;
    padding: 0.75rem;
}

.modal-content::-webkit-scrollbar {
    width: 4px;
}

.modal-content::-webkit-scrollbar-track {
    background: var(--bg-card);
    border-radius: 2px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* ==================== CALENDAR - COMPACT ==================== */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
}

.calendar-day {
    background: var(--bg-surface);
    min-height: 60px;
    padding: 0.35rem;
    position: relative;
    transition: all 0.2s ease;
    font-size: 0.65rem;
    border: 1px solid transparent;
}

.calendar-day:hover {
    background: rgba(var(--primary-rgb), 0.05);
    border-color: rgba(var(--primary-rgb), 0.2);
}

.calendar-day.other-month {
    background: var(--bg-dark);
    color: var(--text-muted);
}

.calendar-day.today {
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.3);
}

.calendar-day.past {
    background: var(--bg-dark);
    color: var(--text-muted);
    opacity: 0.6;
}

.weekday-header {
    background: var(--bg-dark);
    padding: 0.35rem 0.25rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.6rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

/* ==================== LESSON INDICATORS - COMPACT ==================== */
.day-lesson, .admin-day-lesson {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border-radius: 0.2rem;
    padding: 0.125rem 0.25rem;
    margin-bottom: 0.125rem;
    font-size: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.2;
    border: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-day-lesson {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-light) 100%);
}

.group-lesson-indicator {
    background: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
    color: white;
}

/* ==================== STUDENT CARDS - COMPACT ==================== */
.student-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.35rem;
    margin-bottom: 0.2rem;
    cursor: grab;
    transition: all 0.2s ease;
    user-select: none;
    font-size: 0.65rem;
}

.student-card:hover {
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.1);
    transform: translateY(-1px);
}

.group-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--admin-primary);
    border-radius: 0.375rem;
    padding: 0.35rem;
    margin-bottom: 0.2rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.65rem;
}

.group-card:hover {
    border-color: var(--admin-primary);
    background: rgba(157, 0, 255, 0.1);
}

/* ==================== QUICK ACTION CARDS - COMPACT ==================== */
.quick-action-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.5rem;
    transition: all 0.2s ease;
}

.quick-action-card:hover {
    background: rgba(var(--primary-rgb), 0.1);
    border-color: rgba(var(--primary-rgb), 0.3);
}

/* ==================== ACTIVITY ITEMS - COMPACT ==================== */
.activity-item {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.5rem;
    transition: all 0.2s ease;
}

/* ==================== TABLES - COMPACT ==================== */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    padding: 0.5rem 0.75rem;
    text-align: left;
}

.admin-table td {
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
    padding: 0.5rem 0.75rem;
    font-size: 0.65rem;
    color: var(--text-secondary);
}

/* ==================== UPLOAD AREA - COMPACT ==================== */
.upload-area {
    border: 1px dashed var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
    transition: all 0.2s ease;
    background: var(--bg-surface);
}

.upload-area.dragover {
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
}

/* ==================== ICONS - COMPACT ==================== */
svg, i, [class*="feather"] {
    width: 1rem;
    height: 1rem;
    stroke-width: 1.5;
}

.w-3, .h-3 { width: 0.75rem; height: 0.75rem; }
.w-3\.5, .h-3\.5 { width: 0.875rem; height: 0.875rem; }
.w-4, .h-4 { width: 1rem; height: 1rem; }
.w-5, .h-5 { width: 1.25rem; height: 1.25rem; }
.w-6, .h-6 { width: 1.5rem; height: 1.5rem; }
.w-8, .h-8 { width: 1.75rem; height: 1.75rem; }
.w-10, .h-10 { width: 2rem; height: 2rem; }
.w-12, .h-12 { width: 2.25rem; height: 2.25rem; }

/* ==================== AVATARS - COMPACT ==================== */
.avatar, .rounded-full.flex.items-center.justify-center {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.7rem;
    min-width: 1.75rem;
    min-height: 1.75rem;
}

/* ==================== GRADIENT TEXT - COMPACT ==================== */
.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== SPACING UTILITIES - COMPACT ==================== */
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.25rem; }
.p-8 { padding: 1.5rem; }

.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.25rem; padding-right: 1.25rem; }

.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }

.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-3 { margin: 0.75rem; }
.m-4 { margin: 1rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.25rem; }
.mt-8 { margin-top: 1.5rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.25rem; }
.mb-8 { margin-bottom: 1.5rem; }

.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 0.75rem; }
.ml-4 { margin-left: 1rem; }

.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-4 { margin-right: 1rem; }

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.25rem; }

.pt-14 { padding-top: 3.5rem; }
.pt-16 { padding-top: 4rem; }
.pt-20 { padding-top: 5rem; }
.pt-24 { padding-top: 4rem; }

/* ==================== LINE CLAMP ==================== */
.line-clamp-1 {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==================== CUSTOM SCROLLBAR - COMPACT ==================== */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

::-webkit-scrollbar-track {
    background: var(--bg-surface);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* ==================== MOBILE OPTIMIZATIONS ==================== */
@media (max-width: 768px) {
    .container {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    .pt-24 {
        padding-top: 3.5rem;
    }
    
    .calendar-day {
        min-height: 45px;
        padding: 0.2rem;
        font-size: 0.55rem;
    }
    
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .student-card {
        padding: 0.25rem;
        font-size: 0.6rem;
    }
}

/* ==================== ADMIN COLORS ==================== */
.bg-admin-primary {
    background: var(--admin-primary);
}

.text-admin-primary {
    color: var(--admin-primary);
}

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

.bg-admin-primary\/10 {
    background: rgba(157, 0, 255, 0.1);
}

.bg-admin-primary\/20 {
    background: rgba(157, 0, 255, 0.2);
}

.hover\:bg-admin-primary\/90:hover {
    background: rgba(157, 0, 255, 0.9);
}

/* ==================== UTILITY COMPACT CLASSES ==================== */
.text-xxs {
    font-size: 0.55rem;
}

.text-[8px] {
    font-size: 0.5rem;
}

.text-[9px] {
    font-size: 0.55rem;
}

.text-[10px] {
    font-size: 0.6rem;
}

.rounded-lg {
    border-radius: 0.375rem;
}

.rounded-xl {
    border-radius: 0.5rem;
}

.border {
    border-width: 1px;
}

.border-2 {
    border-width: 1.5px;
}

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

/* ==================== PRINT STYLES ==================== */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}

/* ==================== STUDENT PORTAL STYLES ==================== */
.tab-button {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    background: var(--bg-card);
    color: var(--text-muted);
}

.tab-button.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.tab-button:not(.active):hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.availability-slot {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.availability-slot:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.availability-slot.booked {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--bg-card);
    border-color: var(--danger);
}

.availability-slot.booked:hover {
    transform: none;
    border-color: var(--danger);
}

.grade-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Student navbar (simple) */
.student-navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    padding: 0.75rem 1rem;
}

.student-navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.student-navbar .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.student-navbar .logo-icon {
    background: white;
    padding: 0.5rem;
    border-radius: 0.5rem;
}

.student-navbar .logo-icon svg {
    color: var(--primary);
}

/* ==================== GLOBAL SAFEGUARD FOR FIXED NAVBAR ==================== */
/* Ensures all main content areas clear the fixed navbar (80px padding) */
main.flex-1.lg\:ml-\[280px\] {
    padding-top: 80px !important;
}

/* For pages that use a different wrapper (e.g., aiassistant, tts) */
.main-content-wrapper {
    padding-top: 80px !important;
}

/* For mobile (when sidebar is collapsed, margin-left may be 0) */
@media (max-width: 1023px) {
    main.flex-1,
    .main-content-wrapper {
        padding-top: 80px !important;
    }
}

/* ==================== LIGHT/DARK MODE TOGGLE ==================== */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    border-radius: 0.375rem;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.7rem;
    font-weight: 500;
}

.theme-toggle-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
}

.theme-toggle-btn svg {
    width: 1rem;
    height: 1rem;
}

/* ==================== ADDITIONAL THEME OVERRIDES ==================== */
/* Force specific elements to respect theme */
.modal-overlay {
    background: rgba(0, 0, 0, 0.8);
}

[data-theme="dark"] .modal-overlay {
    background: rgba(0, 0, 0, 0.85);
}

[data-theme="light"] .modal-overlay {
    background: rgba(0, 0, 0, 0.6);
}

/* Scrollbar in light mode */
[data-theme="light"] ::-webkit-scrollbar-track {
    background: #f1f3f5;
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

/* Selection color */
::selection {
    background: var(--primary);
    color: white;
}

/* Placeholder text */
::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

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

/* Disabled states */
input:disabled, button:disabled, select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Loading states */
.loading-spinner {
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success/error colors using variables */
.text-success {
    color: var(--success);
}
.text-danger {
    color: var(--danger);
}
.bg-success\/10 {
    background: rgba(16, 185, 129, 0.1);
}
.bg-danger\/10 {
    background: rgba(239, 68, 68, 0.1);
}

/* ==================== CENTRALIZED TAILWIND CLASS OVERRIDES (THEME-AWARE) ==================== */
/* All Tailwind utility classes mapped to CSS variables for theme support */

/* Backgrounds */
.bg-dark { background: var(--bg-dark) !important; }
.bg-surface { background: var(--bg-surface) !important; }
.bg-card { background: var(--bg-card) !important; }
.bg-input { background: var(--bg-input) !important; }
.bg-white { background: var(--bg-surface) !important; }
.bg-gray-50 { background: var(--bg-card) !important; }
.bg-gray-100 { background: var(--bg-card) !important; }
.bg-gray-200 { background: var(--bg-card) !important; }
.bg-gray-300 { background: var(--bg-card) !important; }
.bg-gray-400 { background: var(--bg-card) !important; }
.bg-gray-500 { background: var(--bg-card) !important; }
.bg-gray-600 { background: var(--bg-card) !important; }
.bg-gray-700 { background: var(--bg-card) !important; }
.bg-gray-800 { background: var(--bg-card) !important; }
.bg-gray-900 { background: var(--bg-dark) !important; }

/* Text colors */
.text-light { color: var(--text-primary) !important; }
.text-gray-100 { color: var(--text-primary) !important; }
.text-gray-200 { color: var(--text-secondary) !important; }
.text-gray-300 { color: var(--text-secondary) !important; }
.text-gray-400 { color: var(--text-muted) !important; }
.text-gray-500 { color: var(--text-muted) !important; }
.text-gray-600 { color: var(--text-muted) !important; }
.text-gray-700 { color: var(--text-secondary) !important; }
.text-gray-800 { color: var(--text-secondary) !important; }
.text-gray-900 { color: var(--text-primary) !important; }
.text-white { color: var(--text-primary) !important; }
.text-black { color: var(--text-primary) !important; }

/* Border colors */
.border-gray-100 { border-color: var(--border-color) !important; }
.border-gray-200 { border-color: var(--border-color) !important; }
.border-gray-300 { border-color: var(--border-color) !important; }
.border-gray-400 { border-color: var(--border-color) !important; }
.border-gray-500 { border-color: var(--border-color) !important; }
.border-gray-600 { border-color: var(--border-color) !important; }
.border-gray-700 { border-color: var(--border-color) !important; }
.border-gray-800 { border-color: var(--border-color) !important; }
.border-gray-900 { border-color: var(--border-color) !important; }
.border { border-color: var(--border-color) !important; }
.border-t { border-color: var(--border-color) !important; }
.border-b { border-color: var(--border-color) !important; }
.border-l { border-color: var(--border-color) !important; }
.border-r { border-color: var(--border-color) !important; }

/* Primary colors */
.bg-primary { background: var(--primary) !important; }
.bg-primary\/10 { background: rgba(var(--primary-rgb), 0.1) !important; }
.bg-primary\/20 { background: rgba(var(--primary-rgb), 0.2) !important; }
.bg-primary\/5 { background: rgba(var(--primary-rgb), 0.05) !important; }
.text-primary { color: var(--primary) !important; }
.border-primary { border-color: var(--primary) !important; }
.border-primary\/30 { border-color: rgba(var(--primary-rgb), 0.3) !important; }
.hover\:bg-primary\/90:hover { background: rgba(var(--primary-rgb), 0.9) !important; }
.hover\:bg-primary\/10:hover { background: rgba(var(--primary-rgb), 0.1) !important; }
.hover\:text-primary:hover { color: var(--primary) !important; }
.hover\:border-primary:hover { border-color: var(--primary) !important; }
.hover\:border-primary\/30:hover { border-color: rgba(var(--primary-rgb), 0.3) !important; }

/* Secondary colors */
.bg-secondary { background: var(--secondary) !important; }
.bg-secondary\/10 { background: rgba(var(--secondary-rgb), 0.1) !important; }
.bg-secondary\/20 { background: rgba(var(--secondary-rgb), 0.2) !important; }
.text-secondary { color: var(--secondary) !important; }
.border-secondary { border-color: var(--secondary) !important; }
.hover\:bg-secondary\/90:hover { background: rgba(var(--secondary-rgb), 0.9) !important; }
.hover\:text-secondary:hover { color: var(--secondary) !important; }

/* Success colors */
.bg-success { background: var(--success) !important; }
.bg-success\/10 { background: rgba(16, 185, 129, 0.1) !important; }
.bg-success\/20 { background: rgba(16, 185, 129, 0.2) !important; }
.text-success { color: var(--success) !important; }
.border-success { border-color: var(--success) !important; }
.hover\:bg-success\/90:hover { background: rgba(16, 185, 129, 0.9) !important; }
.hover\:text-success:hover { color: var(--success) !important; }

/* Accent colors */
.bg-accent { background: var(--accent) !important; }
.bg-accent\/10 { background: rgba(245, 158, 11, 0.1) !important; }
.text-accent { color: var(--accent) !important; }
.border-accent { border-color: var(--accent) !important; }
.text-yellow-500 { color: var(--accent) !important; }
.bg-yellow-500\/20 { background: rgba(245, 158, 11, 0.2) !important; }

/* Admin colors */
.bg-admin-primary { background: var(--admin-primary) !important; }
.bg-admin-primary\/10 { background: rgba(157, 0, 255, 0.1) !important; }
.bg-admin-primary\/20 { background: rgba(157, 0, 255, 0.2) !important; }
.text-admin-primary { color: var(--admin-primary) !important; }
.border-admin-primary { border-color: var(--admin-primary) !important; }
.border-admin-primary\/20 { border-color: rgba(157, 0, 255, 0.2) !important; }
.border-admin-primary\/30 { border-color: rgba(157, 0, 255, 0.3) !important; }
.hover\:bg-admin-primary\/90:hover { background: rgba(157, 0, 255, 0.9) !important; }
.hover\:bg-admin-primary\/10:hover { background: rgba(157, 0, 255, 0.1) !important; }

/* Danger colors */
.bg-danger { background: var(--danger) !important; }
.bg-red-400 { background: var(--danger) !important; }
.bg-red-500 { background: var(--danger) !important; }
.bg-red-600 { background: var(--danger-dark) !important; }
.bg-red-500\/10 { background: rgba(239, 68, 68, 0.1) !important; }
.bg-red-500\/20 { background: rgba(239, 68, 68, 0.2) !important; }
.text-red-400 { color: var(--danger) !important; }
.text-red-500 { color: var(--danger) !important; }
.text-red-600 { color: var(--danger) !important; }
.text-red-300 { color: var(--danger) !important; }
.border-red-500 { border-color: var(--danger) !important; }
.hover\:bg-red-600:hover { background: var(--danger-dark) !important; }
.hover\:bg-red-700:hover { background: var(--danger-dark) !important; }
.hover\:text-red-300:hover { color: var(--danger) !important; }

/* Blue (legacy secondary) */
.bg-blue-50 { background: rgba(var(--secondary-rgb), 0.1) !important; }
.text-blue-400 { color: var(--secondary) !important; }
.text-blue-600 { color: var(--secondary) !important; }
.hover\:bg-blue-100:hover { background: rgba(var(--secondary-rgb), 0.2) !important; }
.hover\:text-blue-300:hover { color: var(--secondary) !important; }
.border-blue-100 { border-color: rgba(var(--secondary-rgb), 0.3) !important; }
.border-blue-200 { border-color: rgba(var(--secondary-rgb), 0.3) !important; }

/* Green (legacy success) */
.bg-green-500\/10 { background: rgba(16, 185, 129, 0.1) !important; }
.text-green-400 { color: var(--success) !important; }
.border-green-200 { border-color: rgba(16, 185, 129, 0.3) !important; }

/* Purple (legacy admin) */
.from-purple-50 { --tw-gradient-from: rgba(157, 0, 255, 0.1) !important; }
.to-pink-50 { --tw-gradient-to: rgba(157, 0, 255, 0.1) !important; }
.border-purple-200 { border-color: rgba(157, 0, 255, 0.3) !important; }

/* Gradients */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--primary), var(--secondary)) !important; }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, rgba(var(--primary-rgb), 0.1), rgba(var(--secondary-rgb), 0.1)) !important; }
.from-\[\#f4482b\] { --tw-gradient-from: var(--primary) !important; }
.to-\[\#2596be\] { --tw-gradient-to: var(--secondary) !important; }
.hover\:from-\[\#e03d20\]:hover { --tw-gradient-from: var(--primary-dark) !important; }
.hover\:to-\[\#1d87ac\]:hover { --tw-gradient-to: var(--secondary-dark) !important; }
.from-green-50 { --tw-gradient-from: rgba(16, 185, 129, 0.1) !important; }
.to-emerald-50 { --tw-gradient-to: rgba(16, 185, 129, 0.1) !important; }
.from-blue-50 { --tw-gradient-from: rgba(var(--secondary-rgb), 0.1) !important; }
.to-indigo-50 { --tw-gradient-to: rgba(var(--secondary-rgb), 0.1) !important; }

/* Shadows */
.shadow { box-shadow: var(--shadow) !important; }
.shadow-sm { box-shadow: var(--shadow) !important; }
.shadow-md { box-shadow: var(--shadow) !important; }
.shadow-lg { box-shadow: var(--shadow) !important; }
.shadow-xl { box-shadow: var(--shadow) !important; }

/* Focus states */
.focus\:border-primary:focus { border-color: var(--primary) !important; }
.focus\:border-orange-500:focus { border-color: var(--primary) !important; }
.focus\:border-admin-primary:focus { border-color: var(--admin-primary) !important; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px rgba(var(--primary-rgb), 0.1) !important; }
.focus\:ring-primary\/50:focus { box-shadow: 0 0 0 2px rgba(var(--primary-rgb), 0.1) !important; }
.focus\:ring-admin-primary\/50:focus { box-shadow: 0 0 0 2px rgba(157, 0, 255, 0.1) !important; }
.focus\:ring-orange-500:focus { box-shadow: 0 0 0 2px rgba(var(--primary-rgb), 0.1) !important; }
.focus\:ring-1:focus { box-shadow: 0 0 0 1px rgba(var(--primary-rgb), 0.5) !important; }

/* Hover states for common elements */
.hover\:bg-gray-50:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-100:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-200:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-300:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-400:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-500:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-600:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-700:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-800:hover { background: var(--bg-card) !important; }
.hover\:bg-gray-900:hover { background: var(--bg-card) !important; }
.hover\:bg-surface\/50:hover { background: rgba(30, 30, 33, 0.5) !important; }
.hover\:text-light:hover { color: var(--text-primary) !important; }
.hover\:text-gray-300:hover { color: var(--text-secondary) !important; }

/* Selected/highlighted states */
.selected-card {
    border: 2px solid var(--primary) !important;
    background: rgba(var(--primary-rgb), 0.2) !important;
    transform: scale(1.02);
    transition: all 0.2s;
}

.selection-help {
    font-size: 0.65rem;
    background: rgba(var(--primary-rgb), 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    display: inline-block;
}

#clearSelectionBtn {
    transition: all 0.2s;
}
#clearSelectionBtn:hover {
    background: var(--primary) !important;
    color: white !important;
}

.grade-row-highlight {
    background-color: rgba(var(--primary-rgb), 0.3) !important;
    border-left: 4px solid var(--primary) !important;
    animation: pulse-highlight 1.5s ease-out;
}

@keyframes pulse-highlight {
    0% { background-color: rgba(var(--primary-rgb), 0.3); }
    50% { background-color: rgba(var(--primary-rgb), 0.6); }
    100% { background-color: rgba(var(--primary-rgb), 0.3); }
}

[data-active="true"] {
    background-color: var(--primary) !important;
    color: white !important;
}

/* Accent color for checkboxes */
.accent-primary {
    accent-color: var(--primary) !important;
}

.student-checkbox {
    accent-color: var(--primary) !important;
}

/* Bulk action bar */
.bulk-bar .bar-content {
    background: var(--bg-surface) !important;
    border-color: var(--primary) !important;
}
.bulk-bar .selected-count {
    color: var(--text-primary) !important;
}
.bulk-bar button.primary {
    background: var(--primary) !important;
    color: white !important;
}
.bulk-bar button.primary:hover {
    background: var(--primary-dark) !important;
}
.bulk-bar button.secondary {
    background: var(--bg-card) !important;
    color: var(--text-muted) !important;
}
.bulk-bar button.secondary:hover {
    background: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}
.bulk-bar button.danger {
    background: var(--danger) !important;
    color: white !important;
}
.bulk-bar button.danger:hover {
    background: var(--danger-dark) !important;
}

/* Limit badges */
.limit-badge {
    background: rgba(var(--primary-rgb), 0.2) !important;
    color: var(--primary) !important;
}
.student-limit-indicator {
    color: var(--text-muted) !important;
}
.student-limit-indicator.text-red-400 {
    color: var(--danger) !important;
}
.disabled-btn {
    opacity: 0.6 !important;
}

/* Plan badges */
.plan-free {
    background: rgba(16, 185, 129, 0.2) !important;
    color: var(--success) !important;
}
.plan-plus {
    background: rgba(157, 0, 255, 0.2) !important;
    color: var(--admin-primary) !important;
}
.plan-expired {
    background: rgba(239, 68, 68, 0.2) !important;
    color: var(--danger) !important;
}

/* Lesson badges */
.lesson-badge.bg-success\/10 {
    background: rgba(16, 185, 129, 0.1) !important;
}
.lesson-badge.bg-gray-800 {
    background: var(--bg-card) !important;
}
.lesson-badge.text-success {
    color: var(--success) !important;
}
.lesson-badge.text-gray-400 {
    color: var(--text-muted) !important;
}

/* Toast notifications */
.toast {
    background: var(--bg-surface) !important;
    border-color: var(--border-color) !important;
}
.toast.success {
    border-left-color: var(--success) !important;
}
.toast.error {
    border-left-color: var(--danger) !important;
}
.toast.info {
    border-left-color: var(--primary) !important;
}

/* Loading overlay */
.loading-overlay {
    background: rgba(0, 0, 0, 0.7) !important;
}
.loading-overlay .spinner {
    border-color: var(--border-color) !important;
    border-top-color: var(--primary) !important;
}

/* Status badges */
.badge-active {
    background: rgba(16, 185, 129, 0.2) !important;
    color: var(--success) !important;
}
.badge-expired {
    background: rgba(239, 68, 68, 0.2) !important;
    color: var(--danger) !important;
}
.badge-pending {
    background: rgba(245, 158, 11, 0.2) !important;
    color: var(--accent) !important;
}
.plan-badge {
    background: rgba(var(--primary-rgb), 0.2) !important;
    color: var(--primary) !important;
}

/* Status tags for availability */
.status-available {
    background: rgba(16, 185, 129, 0.2) !important;
    color: var(--success) !important;
}
.status-requested_pending {
    background: rgba(245, 158, 11, 0.2) !important;
    color: var(--accent) !important;
}
.status-requested_by_another {
    background: rgba(107, 114, 128, 0.2) !important;
    color: var(--text-muted) !important;
}

/* Current plan card */
.current-plan {
    border-color: var(--primary) !important;
    background: rgba(var(--primary-rgb), 0.05) !important;
}

/* Action buttons */
.action-button {
    background: var(--bg-dark) !important;
    border-color: var(--border-color) !important;
    color: var(--text-muted) !important;
}
.action-button:hover {
    background: rgba(var(--primary-rgb), 0.1) !important;
    border-color: var(--primary) !important;
    color: var(--text-primary) !important;
}
.action-button i {
    color: var(--primary) !important;
}
.action-button.danger:hover {
    background: rgba(239, 68, 68, 0.1) !important;
    border-color: var(--danger) !important;
}
.action-button.danger i {
    color: var(--danger) !important;
}

/* Interactive cards */
.interactive-card {
    background: var(--bg-surface) !important;
    border-color: var(--border-color) !important;
}
.interactive-card:hover {
    border-color: var(--primary) !important;
    box-shadow: var(--shadow-hover) !important;
}

/* Profile cards */
.profile-card {
    background: var(--bg-surface) !important;
    border-color: var(--border-color) !important;
}

/* Section titles */
.section-title {
    border-bottom-color: var(--primary) !important;
}

/* Pending downgrade text */
.text-yellow-500 {
    color: var(--accent) !important;
}
.hover\:text-yellow-400:hover {
    color: var(--accent) !important;
}

/* Calendar day text color */
.calendar-day .text-light {
    color: var(--text-primary) !important;
}

/* Student avatar background */
.student-avatar {
    background: rgba(var(--primary-rgb), 0.1) !important;
}
.student-avatar span {
    color: var(--primary) !important;
}

/* Final grade gradient */
.final-grade {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

/* Rank badge (kept as is) */
.rank-badge {
    /* keep as is */;
}

/* Group comparison item (kept as is) */
.group-comparison-item {
    /* keep as is */;
}

/* Material card hover */
.material-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

/* Task card hover */
.task-card:hover {
    border-color: var(--primary);
}

/* Task actions buttons */
.task-actions button.preview {
    color: var(--secondary);
    border-color: var(--secondary);
}
.task-actions button.preview:hover {
    background: rgba(var(--secondary-rgb), 0.2);
}
.task-actions button.import {
    color: var(--success);
    border-color: var(--success);
}
.task-actions button.import:hover {
    background: rgba(16, 185, 129, 0.2);
}

/* Pagination active */
.pagination button.active {
    background: var(--primary);
    color: white;
}

/* Media preview doc preview */
.media-preview-content .doc-preview {
    background: var(--bg-card);
}

/* Correct answer item */
.correct-answer-item {
    background: var(--bg-card);
    border-left-color: var(--success);
}

/* Text answer box */
.text-answer-box {
    background: var(--bg-card);
    border-color: var(--border-color);
}

/* Grade buttons */
.grade-btn.correct {
    background: var(--success);
    color: white;
}
.grade-btn.correct:hover {
    background: #059669;
}
.grade-btn.incorrect {
    background: var(--danger);
    color: white;
}
.grade-btn.incorrect:hover {
    background: var(--danger-dark);
}

/* Filter group buttons */
.filter-group button {
    background: var(--primary);
}
.filter-group button:hover {
    background: var(--primary-dark);
}

/* Attachment icons */
.attachment-icon {
    background: var(--bg-card);
}
.attachment-icon:hover {
    background: rgba(var(--primary-rgb), 0.2);
    border-color: var(--primary);
}

/* Question card */
.question-card {
    background: var(--bg-surface);
    border-color: var(--border-color);
}
.question-card:hover {
    border-color: var(--primary);
}

/* Tab styles */
.tab-button {
    background: var(--bg-dark);
    color: var(--text-muted);
    border-color: var(--border-color);
}
.tab-button.active {
    background: var(--bg-surface);
    color: var(--primary);
    border-color: var(--primary);
}
.tab-pane {
    border-color: var(--border-color);
    background: var(--bg-surface);
}

/* Assignment item */
.assignment-item {
    background: var(--bg-surface);
    border-color: var(--border-color);
}
.assignment-item:hover {
    border-color: var(--primary);
}

/* Submission item */
.submission-item {
    background: var(--bg-surface);
    border-color: var(--border-color);
}
.submission-item:hover {
    border-color: var(--primary);
}

/* Task badge */
.task-badge {
    background: var(--bg-card);
}

/* Media upload area */
.media-upload-area {
    background: var(--bg-input);
    border-color: var(--border-color);
}

/* Search input */
.search-input {
    background: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.search-input:focus {
    border-color: var(--primary);
}

/* Group select */
.group-select {
    background: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.group-select:focus {
    border-color: var(--primary);
}

/* Grade input */
.grade-input {
    background: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.grade-input:focus {
    border-color: var(--primary);
}
.grade-input.error {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.05);
}

/* Grade total card */
.grade-total-card {
    background: var(--bg-card);
    border-color: var(--border-color);
}

/* Weight warning */
.weight-warning {
    color: var(--accent);
}

/* Admin card hover */
.admin-card-hover:hover {
    background: rgba(157, 0, 255, 0.05);
    border-color: rgba(157, 0, 255, 0.2);
}

/* Subject group */
.subject-group {
    border-color: var(--border-color);
    background-color: var(--bg-surface);
}
.subject-group.active {
    border-color: var(--primary);
}

/* Custom subject input */
.custom-subject-input {
    display: none;
}
.custom-subject-input.show {
    display: block;
}

/* Admin form input */
.admin-form-input {
    background: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.admin-form-input:focus {
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 2px rgba(157, 0, 255, 0.1);
}

/* Teacher limit indicator */
.teacher-limit-indicator {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-left: 0.5rem;
}
.teacher-limit-indicator.text-red-400 {
    color: var(--danger) !important;
}

/* Full width stat */
.full-width-stat {
    background: var(--bg-surface);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.full-width-stat:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}
.full-width-stat .stat-number {
    color: var(--text-primary);
}

/* Profit card */
.profit-card {
    background: var(--bg-dark);
    border-color: var(--border-color);
}
.profit-value {
    color: var(--success);
}

/* Teacher rate group */
.teacher-rate-group {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.teacher-rate-group:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
}

/* Student price item */
.student-price-item {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.student-price-item:hover {
    background: var(--bg-hover);
    border-color: var(--secondary);
}

/* Student rate card */
.student-rate-card {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.student-rate-card:hover {
    border-color: var(--secondary);
    background: rgba(var(--secondary-rgb), 0.1);
}

/* Control panel section */
.control-panel-section {
    background: var(--bg-surface);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.control-panel-section:hover {
    border-color: var(--primary);
}

/* Section step */
.section-step {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* Rate input group */
.rate-input-group {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.rate-input-group:focus-within {
    border-color: var(--primary);
}

/* Clear rate button */
.clear-rate-btn {
    color: var(--text-muted);
}
.clear-rate-btn:hover {
    color: var(--primary);
}

/* Summary card */
.summary-card {
    background: var(--bg-surface);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* Chart legend */
.chart-legend {
    background: var(--bg-card);
    border-color: var(--border-color);
}

.legend-item {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* Step indicator */
.step.inactive .step-number {
    background: var(--bg-card);
    color: var(--text-muted);
    border-color: var(--border-color);
}
.step.active .step-number {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}
.step.active .step-label {
    color: var(--text-primary);
}

/* Settings modal overrides */
#settingsModal .bg-white {
    background: var(--bg-surface) !important;
    color: var(--text-primary) !important;
}
#settingsModal .text-gray-900 {
    color: var(--text-primary) !important;
}
#settingsModal .text-gray-600 {
    color: var(--text-muted) !important;
}
#settingsModal .border-gray-300 {
    border-color: var(--border-color) !important;
}
#settingsModal .text-gray-700 {
    color: var(--text-secondary) !important;
}
#settingsModal .bg-gray-50 {
    background: var(--bg-card) !important;
}
#settingsModal .hover\:bg-gray-50:hover {
    background: var(--bg-hover) !important;
}
#settingsModal select,
#settingsModal input {
    background: var(--bg-input) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}
#settingsModal select:focus,
#settingsModal input:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1) !important;
}

/* KPI description */
#kpiDescription {
    background: var(--bg-card);
    color: var(--text-muted);
    border-left-color: var(--primary);
}

/* Financial table */
.financial-table th {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}
.financial-table td {
    color: var(--text-secondary);
    border-color: var(--border-color);
}
.financial-table tr:hover {
    background: var(--bg-card);
}
#financialTableFooter tr {
    background-color: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

/* Chart container */
.chart-container {
    background: var(--bg-surface);
    border-color: var(--border-color);
}

/* Date range inputs */
#customRangeSelector input[type="date"] {
    border-color: var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
}
#customRangeSelector input[type="date"]:focus {
    border-color: var(--primary);
}

/* Loading animation */
.loading {
    border-color: var(--border-color);
    border-top-color: var(--primary);
}
.admin .loading {
    border-top-color: var(--secondary);
}

/* Currency display */
.currency-display {
    color: var(--text-primary);
}
/* ================================================================
   CENTER SIDEBAR TOGGLE BUTTON ON MOBILE
   ================================================================ */

@media (max-width: 1023px) {
    .sidebar-toggle {
        position: fixed !important;
        top: 0.75rem !important;          /* adjust vertical position as needed */
        left: 50% !important;
        transform: translateX(-50%) !important;
        /* Keep it above everything */
        z-index: 9999 !important;
        /* Ensure it stays on top of navbar */
        background: var(--primary) !important;
        color: white !important;
        border: none !important;
        border-radius: 0.5rem !important;
        padding: 0.5rem 0.75rem !important;
        cursor: pointer !important;
        transition: all 0.2s !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        min-width: 44px !important;
        min-height: 44px !important;
    }
}
/* Show the auth container on mobile, but hide everything except the bell */
@media (max-width: 767px) {
  .auth-buttons {
    display: flex !important;
    align-items: center;
    gap: 0.25rem;
  }

  /* Hide the user's name and the "Дашборд" button on phones */
  .auth-buttons .user-welcome,
  .auth-buttons .btn-dashboard {
    display: none !important;
  }

  /* Ensure the bell and its badge remain fully visible */
  .auth-buttons .notification-bell {
    display: flex !important;
    margin-right: 0.25rem;
  }

  /* Optional: make the mobile menu button spacing tighter */
  .mobile-menu-btn {
    margin-left: 0.25rem;
  }
}


/* Notification dropdown - mobile friendly */
@media (max-width: 768px) {
  .notification-dropdown {
    position: fixed !important;
    top: 60px !important; /* Adjust based on your navbar height */
    right: 0.5rem !important;
    left: 0.5rem !important;
    width: auto !important;
    max-width: calc(100vw - 1rem) !important;
    max-height: 60vh !important;
    overflow-y: auto !important;
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 0.75rem !important;
    box-shadow: var(--shadow-lg) !important;
    z-index: 1100 !important;
  }

  .notification-dropdown .notification-item {
    padding: 0.75rem 1rem !important;
    font-size: 0.85rem !important;
    line-height: 1.4 !important;
    word-break: break-word !important;
  }
}

/* On desktop, keep the original dropdown behavior */
@media (min-width: 769px) {
  .notification-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 320px;
    max-height: 400px;
    overflow-y: auto;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    margin-top: 0.5rem;
    z-index: 1100;
  }
}