/* ============================================================
   EduFlow — Beautiful School Management System
   Clean, Soft, Card-Based Design
   ============================================================ */

/* --- CSS Variables (Theme) --- */
:root {
    --primary: #4F46E5;
    --primary-light: #818CF8;
    --primary-dark: #3730A3;
    --primary-50: #EEF2FF;
    --primary-100: #E0E7FF;

    --success: #10B981;
    --success-light: #D1FAE5;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --info: #3B82F6;
    --info-light: #DBEAFE;

    --bg: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-sidebar: #1E1B4B;
    --bg-sidebar-hover: #312E81;

    --text: #1E293B;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    --text-sidebar: #C7D2FE;
    --text-sidebar-active: #FFFFFF;

    --border: #E2E8F0;
    --border-light: #F1F5F9;

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50%;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.10), 0 8px 10px rgba(0,0,0,0.04);

    --sidebar-width: 260px;
    --topbar-height: 68px;

    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* --- App Layout --- */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: var(--transition-slow);
    overflow: hidden;
}

.sidebar-header {
    padding: 20px 20px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

/* Tree logo image in sidebar */
.logo-tree-img {
    height: 52px;
    width: auto;
    border: 2px solid transparent;
    border-radius: 12px;
    padding: 3px;
    transition: all 0.35s ease;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.15));
}
.logo:hover .logo-tree-img {
    border-color: rgba(234,88,12,0.5);
    background: rgba(234,88,12,0.1);
    box-shadow: 0 0 14px rgba(234,88,12,0.3), 0 0 28px rgba(234,88,12,0.12);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    color: white;
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
}
.logo-name .ln-veda {
    color: #FB923C;
}
.logo-name .ln-pro {
    color: #FBBF24;
}

.logo-tagline {
    color: rgba(255,255,255,0.75);
    font-size: 0.7rem;
    opacity: 1;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.sidebar-close {
    display: none;
    color: var(--text-sidebar);
    font-size: 1.2rem;
    padding: 8px;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 8px 12px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.15);
    border-radius: 4px;
}

.nav-section {
    margin-bottom: 8px;
}

.nav-section-title {
    display: block;
    color: var(--text-sidebar);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 12px 12px 6px;
    opacity: 0.5;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-sidebar);
    font-size: 0.87rem;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--bg-sidebar-hover);
    color: white;
}

.nav-item.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.4);
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.8;
}

.nav-item.active i {
    opacity: 1;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 12px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.05);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    display: block;
    color: white;
    font-weight: 600;
    font-size: 0.82rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    display: block;
    color: var(--text-sidebar);
    font-size: 0.7rem;
    opacity: 0.6;
}

.logout-btn {
    color: var(--text-sidebar);
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    opacity: 0.6;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #FCA5A5;
    opacity: 1;
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Top Bar --- */
.topbar {
    height: var(--topbar-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: none;
    font-size: 1.2rem;
    color: var(--text-secondary);
    padding: 8px;
    border-radius: var(--radius-sm);
}

.menu-toggle:hover {
    background: var(--bg);
}

.page-title h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
}

.page-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 1px;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 14px;
    width: 240px;
    transition: var(--transition);
}

.search-bar:focus-within {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.search-bar i {
    color: var(--text-light);
    font-size: 0.85rem;
}

.search-bar input {
    border: none;
    background: none;
    outline: none;
    width: 100%;
    font-size: 0.85rem;
    color: var(--text);
}

.search-bar input::placeholder {
    color: var(--text-light);
}

.topbar-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
}

.topbar-btn:hover {
    background: var(--bg);
    color: var(--text);
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 18px;
    height: 18px;
    background: var(--danger);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.6rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- Notification Panel --- */
.notification-panel {
    position: fixed;
    top: var(--topbar-height);
    right: 20px;
    width: 380px;
    max-height: 500px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
    z-index: 200;
    overflow: hidden;
}

.notif-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.notif-header h3 {
    font-size: 0.95rem;
    font-weight: 700;
}

.notif-mark-all {
    font-size: 0.78rem;
    color: var(--primary);
    font-weight: 600;
}

.notif-list {
    max-height: 400px;
    overflow-y: auto;
}

.notif-empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-light);
}

.notif-empty i {
    font-size: 2rem;
    margin-bottom: 8px;
    opacity: 0.4;
}

.notif-item {
    display: flex;
    gap: 12px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.notif-item:hover {
    background: var(--bg);
}

.notif-item.unread {
    background: var(--primary-50);
}

.notif-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.notif-icon.attendance { background: var(--info-light); color: var(--info); }
.notif-icon.fee { background: var(--warning-light); color: var(--warning); }
.notif-icon.result { background: var(--success-light); color: var(--success); }
.notif-icon.alert { background: var(--danger-light); color: var(--danger); }

.notif-content {
    flex: 1;
    min-width: 0;
}

.notif-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2px;
}

.notif-msg {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.notif-time {
    font-size: 0.68rem;
    color: var(--text-light);
    margin-top: 4px;
}

/* --- Page Content --- */
.page-content {
    padding: 28px;
    flex: 1;
}

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

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

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

/* --- Stat Cards (Dashboard) --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 22px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-icon.purple { background: var(--primary-50); color: var(--primary); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.orange { background: var(--warning-light); color: var(--warning); }
.stat-icon.blue { background: var(--info-light); color: var(--info); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 2px;
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    margin-top: 6px;
    padding: 2px 8px;
    border-radius: 20px;
}

.stat-change.up { background: var(--success-light); color: var(--success); }
.stat-change.down { background: var(--danger-light); color: var(--danger); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(79, 70, 229, 0.35);
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border-light);
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #DC2626;
}

.btn-ghost {
    background: transparent;
    color: var(--primary);
    padding: 8px 16px;
}

.btn-ghost:hover {
    background: var(--primary-50);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.78rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 0.95rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
}

/* --- Forms --- */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form-label .required {
    color: var(--danger);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--text);
    background: var(--bg-card);
    transition: var(--transition);
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    font-size: 0.72rem;
    color: var(--text-light);
    margin-top: 4px;
}

.form-error {
    font-size: 0.72rem;
    color: var(--danger);
    margin-top: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* --- Tables --- */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 14px 16px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

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

.data-table tbody tr:hover {
    background: var(--primary-50);
}

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

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-purple { background: var(--primary-50); color: var(--primary); }
.badge-gray { background: var(--border-light); color: var(--text-secondary); }

/* --- Attendance Grid (Beautiful Tap Interface) --- */
.attendance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.attendance-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.attendance-card:hover {
    border-color: var(--primary-light);
}

.attendance-card.present {
    border-color: var(--success);
    background: var(--success-light);
}

.attendance-card.absent {
    border-color: var(--danger);
    background: var(--danger-light);
}

.attendance-card.late {
    border-color: var(--warning);
    background: var(--warning-light);
}

.student-thumb {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--primary-50);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.student-detail {
    flex: 1;
    min-width: 0;
}

.student-detail .name {
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.student-detail .roll {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.attendance-status {
    font-size: 1.2rem;
}

/* --- Toast Notifications --- */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-radius: var(--radius);
    background: var(--bg-card);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid;
    min-width: 320px;
    max-width: 420px;
    animation: toastSlideIn 0.3s ease;
    transition: var(--transition);
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.info { border-left-color: var(--info); }

.toast-icon {
    font-size: 1.2rem;
}

.toast.success .toast-icon { color: var(--success); }
.toast.error .toast-icon { color: var(--danger); }
.toast.warning .toast-icon { color: var(--warning); }
.toast.info .toast-icon { color: var(--info); }

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.85rem;
}

.toast-message {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 1px;
}

.toast-close {
    color: var(--text-light);
    padding: 4px;
    font-size: 0.9rem;
}

.toast-close:hover {
    color: var(--text);
}

@keyframes toastSlideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes toastSlideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    animation: fadeIn 0.2s ease;
    padding: 20px;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideUp 0.3s ease;
}

.modal-lg { max-width: 720px; }
.modal-xl { max-width: 900px; }

.modal-header {
    padding: 24px 28px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg);
    color: var(--text);
}

.modal-body {
    padding: 24px 28px;
}

.modal-footer {
    padding: 0 28px 24px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

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

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

/* --- Auth Layout (Login) --- */
.auth-layout {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #4338CA 100%);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.auth-layout::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(129, 140, 248, 0.2), transparent);
    top: -200px;
    right: -200px;
    border-radius: 50%;
}

.auth-layout::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent);
    bottom: -100px;
    left: -100px;
    border-radius: 50%;
}

.auth-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 440px;
    padding: 40px;
    position: relative;
    z-index: 1;
    animation: modalSlideUp 0.5s ease;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo .logo-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 12px;
    font-size: 1.5rem;
}

.auth-logo h1 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-logo p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 4px;
}

.auth-form .form-group {
    margin-bottom: 20px;
}

.auth-form .form-input {
    padding: 12px 16px;
    font-size: 0.9rem;
}

.auth-form .btn {
    width: 100%;
    padding: 13px;
    font-size: 0.95rem;
}

/* --- Empty States --- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 3rem;
    color: var(--text-light);
    opacity: 0.3;
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
}

.empty-state p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* --- Grid Layouts --- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* --- Quick Actions Grid --- */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
}

.quick-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 12px;
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.quick-action:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-action i {
    font-size: 1.5rem;
    color: var(--primary);
}

.quick-action span {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar-close {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .search-bar {
        display: none;
    }

    .form-row,
    .form-row-3 {
        grid-template-columns: 1fr;
    }

    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Better table handling */
    .data-table { font-size: 0.78rem; }
    .data-table th, .data-table td { padding: 8px 10px; }

    /* Better buttons on tablet */
    .btn { min-height: 42px; padding: 10px 16px; }
    .btn-sm { min-height: 36px; padding: 8px 12px; }
}

@media (max-width: 640px) {
    .page-content {
        padding: 12px;
    }

    .topbar {
        padding: 0 12px;
    }

    .page-title h1 {
        font-size: 1rem;
    }

    .page-subtitle {
        font-size: 0.7rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .stat-card {
        padding: 12px;
    }

    .stat-value {
        font-size: 1.3rem;
    }

    .card-header {
        padding: 12px 14px;
        flex-wrap: wrap;
        gap: 8px;
    }

    .card-header h2 {
        font-size: 0.88rem;
    }

    .card-body {
        padding: 14px;
    }

    .auth-card {
        padding: 28px 24px;
    }

    .attendance-grid {
        grid-template-columns: 1fr;
    }

    .notification-panel {
        width: calc(100% - 40px);
        right: 20px;
        left: 20px;
    }

    /* Touch-friendly tap targets (44px minimum) */
    .btn { min-height: 44px; font-size: 0.82rem; }
    .btn-sm { min-height: 40px; }
    .form-input, .form-select { min-height: 44px; font-size: 16px; /* prevents zoom on iOS */ }
    .nav-item { min-height: 44px; }

    /* Better modals on mobile */
    .modal { width: 95%; max-width: 95%; margin: 10px; max-height: 90vh; }
    .modal-body { max-height: 60vh; overflow-y: auto; }

    /* Stack horizontal layouts */
    .flex-between { flex-wrap: wrap; gap: 8px; }

    /* Horizontal scroll for tables */
    .data-table { display: block; overflow-x: auto; white-space: nowrap; }

    /* Quick actions grid */
    .quick-actions { grid-template-columns: repeat(3, 1fr); }
}

/* --- Utility Classes --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-sm { font-size: 0.82rem; }
.text-xs { font-size: 0.72rem; }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.w-full { width: 100%; }
.hidden { display: none; }

/* ============================================================
   DARK MODE — Toggle via data-theme="dark" on <html>
   ============================================================ */
[data-theme="dark"] {
    --primary: #818CF8;
    --primary-light: #A5B4FC;
    --primary-dark: #6366F1;
    --primary-50: #1E1B4B;
    --primary-100: #312E81;

    --success: #34D399;
    --success-light: #064E3B;
    --warning: #FBBF24;
    --warning-light: #78350F;
    --danger: #F87171;
    --danger-light: #7F1D1D;
    --info: #60A5FA;
    --info-light: #1E3A5F;

    --bg: #0F172A;
    --bg-card: #1E293B;
    --bg-secondary: #334155;
    --bg-sidebar: #0C0A1D;
    --bg-sidebar-hover: #1E1B4B;

    --text: #F1F5F9;
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-light: #64748B;
    --text-sidebar: #A5B4FC;
    --text-sidebar-active: #FFFFFF;

    --border: #334155;
    --border-light: #1E293B;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow: 0 1px 3px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);
}

[data-theme="dark"] body {
    background: var(--bg);
    color: var(--text);
}

[data-theme="dark"] .card,
[data-theme="dark"] .modal-box,
[data-theme="dark"] .dropdown-menu {
    background: var(--bg-card);
    border-color: var(--border);
}

[data-theme="dark"] .card-header {
    border-color: var(--border);
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea,
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select {
    background: var(--bg-secondary);
    color: var(--text);
    border-color: var(--border);
}

[data-theme="dark"] .data-table th {
    background: var(--bg-secondary);
    color: var(--text);
}

[data-theme="dark"] .data-table td {
    border-color: var(--border);
    color: var(--text-secondary);
}

[data-theme="dark"] .data-table tr:hover td {
    background: var(--bg-secondary);
}

[data-theme="dark"] .nav-item:hover {
    background: var(--bg-sidebar-hover);
}

[data-theme="dark"] .topbar {
    background: var(--bg-card);
    border-color: var(--border);
}

[data-theme="dark"] .btn-ghost {
    color: var(--text-secondary);
}

[data-theme="dark"] .btn-ghost:hover {
    background: var(--bg-secondary);
}

[data-theme="dark"] .btn-secondary {
    background: var(--bg-secondary);
    color: var(--text);
    border-color: var(--border);
}

[data-theme="dark"] .empty-state i {
    color: var(--text-light);
}

[data-theme="dark"] .modal-overlay {
    background: rgba(0,0,0,0.7);
}

/* Dark mode toggle button */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 8px;
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all 0.2s;
}
.theme-toggle:hover {
    background: var(--bg-secondary, #F1F5F9);
    color: var(--primary);
}

/* ============================================================
   GAMIFICATION — Streaks, Badges, Progress
   ============================================================ */
.streak-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    background: linear-gradient(135deg, #F59E0B, #F97316);
    color: white;
    animation: streak-glow 2s ease-in-out infinite alternate;
}

@keyframes streak-glow {
    from { box-shadow: 0 0 4px rgba(245, 158, 11, 0.3); }
    to { box-shadow: 0 0 12px rgba(245, 158, 11, 0.6); }
}

.achievement-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    border: 2px solid;
}
.achievement-badge.gold { background: #FFFBEB; border-color: #F59E0B; color: #92400E; }
.achievement-badge.silver { background: #F8FAFC; border-color: #94A3B8; color: #475569; }
.achievement-badge.bronze { background: #FEF3C7; border-color: #D97706; color: #78350F; }
.achievement-badge.green { background: #D1FAE5; border-color: #10B981; color: #065F46; }

.confetti-burst {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 9999;
}

/* Progress ring */
.progress-ring { position: relative; display: inline-flex; }
.progress-ring svg { transform: rotate(-90deg); }
.progress-ring .ring-text {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 800;
    font-size: 0.85rem;
}

/* Milestone bar */
.milestone-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: linear-gradient(90deg, #D1FAE5, #DBEAFE);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #065F46;
}

[data-theme="dark"] .milestone-bar {
    background: linear-gradient(90deg, #064E3B, #1E3A5F);
    color: #34D399;
}

/* ============================================================
   POLISH — Micro-interactions & Transitions
   ============================================================ */

/* Smooth page transitions */
.main-content {
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Card hover lift */
.card {
    transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover {
    box-shadow: var(--shadow-md);
}

/* Button press effect */
.btn:active {
    transform: scale(0.97);
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, var(--border-light) 25%, var(--border) 50%, var(--border-light) 75%);
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Tooltip */
[data-tooltip] {
    position: relative;
}
[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: #1E293B;
    color: white;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.68rem;
    white-space: nowrap;
    z-index: 100;
    pointer-events: none;
    animation: fadeInUp 0.15s ease;
}

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

/* Scroll-to-top */
.scroll-top-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    box-shadow: var(--shadow-md);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: opacity 0.3s, transform 0.3s;
}
.scroll-top-btn.visible { display: flex; }
.scroll-top-btn:hover { transform: scale(1.1); }

/* ============================================================
   DARK MODE — Sprint 25 Page Fixes
   ============================================================ */
[data-theme="dark"] .add-card,
[data-theme="dark"] .form-card,
[data-theme="dark"] .assign-card,
[data-theme="dark"] .w-card,
[data-theme="dark"] .h-card,
[data-theme="dark"] .role-card,
[data-theme="dark"] .emp-card,
[data-theme="dark"] .house-card .house-body,
[data-theme="dark"] .canvas-wrap,
[data-theme="dark"] .tool-panel,
[data-theme="dark"] .prop-panel,
[data-theme="dark"] .modal-box {
    background: var(--bg-card) !important;
    color: var(--text) !important;
}

[data-theme="dark"] .w-tabs,
[data-theme="dark"] .h-tabs {
    background: var(--bg-card) !important;
}

[data-theme="dark"] .w-tab,
[data-theme="dark"] .h-tab {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .f-grp input,
[data-theme="dark"] .f-grp select,
[data-theme="dark"] .f-grp textarea,
[data-theme="dark"] .filter-bar input,
[data-theme="dark"] .filter-bar select,
[data-theme="dark"] .prop-row input,
[data-theme="dark"] .prop-row select {
    background: var(--bg-secondary) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

[data-theme="dark"] .f-grp label,
[data-theme="dark"] .prop-row label {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .emp-card {
    border-left-color: var(--primary) !important;
}

[data-theme="dark"] .ea-btn,
[data-theme="dark"] .ha-btn,
[data-theme="dark"] .w-btn,
[data-theme="dark"] .v-btn,
[data-theme="dark"] .ct-btn,
[data-theme="dark"] .tool-btn {
    background: var(--bg-secondary) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

[data-theme="dark"] .ea-btn:hover,
[data-theme="dark"] .ha-btn:hover,
[data-theme="dark"] .tool-btn:hover,
[data-theme="dark"] .ct-btn:hover {
    background: var(--primary-50) !important;
    color: var(--primary-light) !important;
}

[data-theme="dark"] .emp-tag,
[data-theme="dark"] .role-chip {
    background: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .info-banner {
    background: var(--primary-50) !important;
    border-color: var(--primary-100) !important;
    color: var(--primary-light) !important;
}

[data-theme="dark"] .w-status.active { background: #064E3B !important; color: #34D399 !important; }
[data-theme="dark"] .w-status.revoked { background: var(--bg-secondary) !important; }

[data-theme="dark"] .emp-meta,
[data-theme="dark"] .house-tagline,
[data-theme="dark"] .house-master,
[data-theme="dark"] .w-meta,
[data-theme="dark"] .role-meta,
[data-theme="dark"] .hs-lbl,
[data-theme="dark"] .hd-label {
    color: var(--text-light) !important;
}

[data-theme="dark"] .modal-overlay {
    background: rgba(0,0,0,0.7) !important;
}

[data-theme="dark"] .btn-secondary {
    background: var(--bg-secondary) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

[data-theme="dark"] .tmpl-card {
    border-color: var(--border) !important;
    background: var(--bg-card) !important;
}
[data-theme="dark"] .tmpl-card:hover,
[data-theme="dark"] .tmpl-card.active {
    border-color: var(--primary) !important;
    background: var(--primary-50) !important;
}
[data-theme="dark"] .tmpl-preview {
    background: var(--bg-secondary) !important;
}

[data-theme="dark"] #idCanvas {
    border-color: var(--border) !important;
}

[data-theme="dark"] .room-pill {
    background: var(--bg-secondary) !important;
    border-color: var(--border) !important;
    color: var(--text) !important;
}

[data-theme="dark"] .stu-row {
    border-color: var(--border) !important;
}
[data-theme="dark"] .stu-row:hover {
    background: var(--bg-secondary) !important;
}

/* Accounts page */
[data-theme="dark"] .acc-card,
[data-theme="dark"] .txn-row {
    background: var(--bg-card) !important;
    color: var(--text) !important;
}

/* QR Attendance */
[data-theme="dark"] .qr-card,
[data-theme="dark"] .scan-area {
    background: var(--bg-card) !important;
    color: var(--text) !important;
}

/* Quiz page */
[data-theme="dark"] .qz-card {
    background: var(--bg-card) !important;
    color: var(--text) !important;
}

/* ============================================================
   DARK MODE — Comprehensive Fix (All Pages)
   ============================================================ */

/* ── Universal Card Backgrounds ── */
[data-theme="dark"] .chart-card,
[data-theme="dark"] .kpi-card,
[data-theme="dark"] .promo-steps,
[data-theme="dark"] .config-card,
[data-theme="dark"] .summary-bar,
[data-theme="dark"] .scan-card,
[data-theme="dark"] .log-card,
[data-theme="dark"] .exam-card,
[data-theme="dark"] .res-tabs,
[data-theme="dark"] .rs-card,
[data-theme="dark"] .entry-card,
[data-theme="dark"] .result-list,
[data-theme="dark"] .act-tabs,
[data-theme="dark"] .event-card,
[data-theme="dark"] .create-card,
[data-theme="dark"] .ec-btn,
[data-theme="dark"] .live-card,
[data-theme="dark"] .cmd-card,
[data-theme="dark"] .sr-card,
[data-theme="dark"] .notif-item,
[data-theme="dark"] .filter-card,
[data-theme="dark"] .stats-card,
[data-theme="dark"] .brief-card,
[data-theme="dark"] .act-card,
[data-theme="dark"] .schedule-card,
[data-theme="dark"] .cert-card,
[data-theme="dark"] .lib-card,
[data-theme="dark"] .msg-card,
[data-theme="dark"] .hw-card,
[data-theme="dark"] .quiz-card,
[data-theme="dark"] .tt-card,
[data-theme="dark"] .pay-card,
[data-theme="dark"] .trans-card,
[data-theme="dark"] .bus-card,
[data-theme="dark"] .route-card,
[data-theme="dark"] .veh-card,
[data-theme="dark"] .leave-card,
[data-theme="dark"] .sig-card,
[data-theme="dark"] .award-card,
[data-theme="dark"] .export-card,
[data-theme="dark"] .don-card {
    background: var(--bg-card) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

/* ── Table Hover States ── */
[data-theme="dark"] .stu-table tr:hover,
[data-theme="dark"] .results-table tr:hover,
[data-theme="dark"] .marks-table tr:hover,
[data-theme="dark"] .student-fee-row:hover:not(.header),
[data-theme="dark"] .data-table tbody tr:hover td,
[data-theme="dark"] tr:hover > td {
    background: var(--bg-secondary) !important;
}

/* ── Fail/Special Row Backgrounds ── */
[data-theme="dark"] .results-table tr.fail-row,
[data-theme="dark"] .marks-table tr.absent-row {
    background: rgba(239, 68, 68, 0.1) !important;
}

/* ── Input/Form Dark Mode ── */
[data-theme="dark"] .marks-input {
    background: var(--bg-secondary) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}
[data-theme="dark"] .marks-input.pass {
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: var(--success) !important;
}
[data-theme="dark"] .marks-input.fail {
    background: rgba(239, 68, 68, 0.15) !important;
    border-color: var(--danger) !important;
}
[data-theme="dark"] .marks-input:focus {
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.25) !important;
}

/* ── Status Badges & Pills (Colorful in dark mode!) ── */
[data-theme="dark"] .action-chip.promoted,
[data-theme="dark"] .rl-badge.pass,
[data-theme="dark"] .log-status.present,
[data-theme="dark"] .ls.green {
    background: rgba(52, 211, 153, 0.2) !important;
    color: #6EE7B7 !important;
}
[data-theme="dark"] .action-chip.detained,
[data-theme="dark"] .rl-badge.fail,
[data-theme="dark"] .ls.red {
    background: rgba(248, 113, 113, 0.2) !important;
    color: #FCA5A5 !important;
}
[data-theme="dark"] .action-chip.tc,
[data-theme="dark"] .ls.blue {
    background: rgba(96, 165, 250, 0.2) !important;
    color: #93C5FD !important;
}
[data-theme="dark"] .rl-badge.comp {
    background: rgba(251, 191, 36, 0.2) !important;
    color: #FDE68A !important;
}

/* ── Rank Badges ── */
[data-theme="dark"] .rl-rank.gold,
[data-theme="dark"] .rank-1 {
    background: rgba(251, 191, 36, 0.2) !important;
    color: #FDE68A !important;
}
[data-theme="dark"] .rl-rank.silver,
[data-theme="dark"] .rank-2 {
    background: rgba(148, 163, 184, 0.2) !important;
    color: #CBD5E1 !important;
}
[data-theme="dark"] .rl-rank.bronze,
[data-theme="dark"] .rank-3 {
    background: rgba(251, 146, 60, 0.2) !important;
    color: #FDBA74 !important;
}

/* ── Grade Pills ── */
[data-theme="dark"] .grade-B1,
[data-theme="dark"] .grade-B2 {
    background: rgba(96, 165, 250, 0.2) !important;
    color: #93C5FD !important;
}
[data-theme="dark"] .grade-D {
    background: rgba(251, 191, 36, 0.2) !important;
    color: #FDE68A !important;
}

/* ── Notification Center ── */
[data-theme="dark"] .notif-item.unread {
    background: rgba(129, 140, 248, 0.1) !important;
    border-left-color: var(--primary) !important;
}
[data-theme="dark"] .notif-icon.attendance {
    background: rgba(37, 99, 235, 0.2) !important;
    color: #93C5FD !important;
}
[data-theme="dark"] .notif-icon.fee {
    background: rgba(217, 119, 6, 0.2) !important;
    color: #FDE68A !important;
}
[data-theme="dark"] .notif-icon.announcement {
    background: rgba(124, 58, 237, 0.2) !important;
    color: #C4B5FD !important;
}
[data-theme="dark"] .notif-icon.result {
    background: rgba(5, 150, 105, 0.2) !important;
    color: #6EE7B7 !important;
}
[data-theme="dark"] .notif-icon.alert {
    background: rgba(220, 38, 38, 0.2) !important;
    color: #FCA5A5 !important;
}
[data-theme="dark"] .notif-icon.message {
    background: rgba(2, 132, 199, 0.2) !important;
    color: #7DD3FC !important;
}
[data-theme="dark"] .notif-tab {
    background: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
}
[data-theme="dark"] .notif-tab.active {
    background: var(--primary) !important;
    color: white !important;
}

/* ── Topper / Accent Gradient Cards ── */
[data-theme="dark"] .topper-card {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.15), rgba(245, 158, 11, 0.1)) !important;
    border-color: rgba(251, 191, 36, 0.3) !important;
    color: var(--text) !important;
}

/* ── Code Blocks ── */
[data-theme="dark"] code {
    background: var(--bg-secondary) !important;
    color: var(--primary-light) !important;
}

/* ── Analytics Chart.js defaults ── */
[data-theme="dark"] .gauge-ring::after {
    background: var(--bg-card) !important;
}

/* ── QR Attendance ── */
[data-theme="dark"] .scan-card,
[data-theme="dark"] .log-card {
    background: var(--bg-card) !important;
}

/* ── Activities Event Banner (keep colorful gradients) ── */
[data-theme="dark"] .ec-banner.sports { background: linear-gradient(135deg, #059669, #10B981) !important; }
[data-theme="dark"] .ec-banner.cultural { background: linear-gradient(135deg, #7C3AED, #A78BFA) !important; }
[data-theme="dark"] .ec-banner.academic { background: linear-gradient(135deg, #2563EB, #60A5FA) !important; }
[data-theme="dark"] .ec-banner.arts { background: linear-gradient(135deg, #D97706, #FBBF24) !important; }
[data-theme="dark"] .ec-banner.tech { background: linear-gradient(135deg, #0891B2, #22D3EE) !important; }

/* ── Attendance Card Gradients (softer in dark) ── */
[data-theme="dark"] .att-card.present {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(52, 211, 153, 0.08)) !important;
}
[data-theme="dark"] .att-card.absent {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.12), rgba(248, 113, 113, 0.08)) !important;
}
[data-theme="dark"] .att-card.late {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(251, 191, 36, 0.08)) !important;
}
[data-theme="dark"] .att-card {
    border-color: var(--border) !important;
}

/* ── Achievement Badges ── */
[data-theme="dark"] .achievement-badge.gold {
    background: rgba(245, 158, 11, 0.15) !important;
    border-color: #F59E0B !important;
    color: #FDE68A !important;
}
[data-theme="dark"] .achievement-badge.silver {
    background: rgba(148, 163, 184, 0.15) !important;
    border-color: #94A3B8 !important;
    color: #CBD5E1 !important;
}
[data-theme="dark"] .achievement-badge.bronze {
    background: rgba(217, 119, 6, 0.15) !important;
    border-color: #D97706 !important;
    color: #FDBA74 !important;
}
[data-theme="dark"] .achievement-badge.green {
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: #10B981 !important;
    color: #6EE7B7 !important;
}

/* ── Heatmap Cells ── */
[data-theme="dark"] .hm-cell[style*="background:#F1F5F9"],
[data-theme="dark"] .hm-cell[style*="background:#F3F4F6"] {
    background: var(--bg-secondary) !important;
}

/* ── Milestone Bar ── */
[data-theme="dark"] .milestone-bar {
    background: linear-gradient(90deg, rgba(52, 211, 153, 0.15), rgba(96, 165, 250, 0.15)) !important;
    color: #6EE7B7 !important;
}

/* ── Modals ── */
[data-theme="dark"] .modal-box,
[data-theme="dark"] .modal-content {
    background: var(--bg-card) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

/* ── Wizard Steps ── */
[data-theme="dark"] .step-card,
[data-theme="dark"] .wizard-step,
[data-theme="dark"] .step-item {
    background: var(--bg-card) !important;
    color: var(--text) !important;
}

/* ── Generic Inline White Backgrounds ── */
[data-theme="dark"] [style*="background:white"],
[data-theme="dark"] [style*="background: white"],
[data-theme="dark"] [style*="background:#fff"],
[data-theme="dark"] [style*="background: #fff"],
[data-theme="dark"] [style*="background:#FFFFFF"],
[data-theme="dark"] [style*="background: #FFFFFF"] {
    background: var(--bg-card) !important;
    color: var(--text) !important;
}
[data-theme="dark"] [style*="background:#F8FAFC"],
[data-theme="dark"] [style*="background: #F8FAFC"],
[data-theme="dark"] [style*="background:#F1F5F9"],
[data-theme="dark"] [style*="background: #F1F5F9"],
[data-theme="dark"] [style*="background:#FAFBFF"],
[data-theme="dark"] [style*="background: #FAFBFF"],
[data-theme="dark"] [style*="background:#F9FAFB"],
[data-theme="dark"] [style*="background: #F9FAFB"] {
    background: var(--bg-secondary) !important;
}

/* ── Generic Inline Dark Text ── */
[data-theme="dark"] [style*="color:#1E293B"],
[data-theme="dark"] [style*="color: #1E293B"],
[data-theme="dark"] [style*="color:#333"],
[data-theme="dark"] [style*="color: #333"],
[data-theme="dark"] [style*="color:#374151"],
[data-theme="dark"] [style*="color: #374151"] {
    color: var(--text) !important;
}

/* ── Select/Dropdown ── */
[data-theme="dark"] select option {
    background: var(--bg-card);
    color: var(--text);
}

/* ── Tabs (generic) ── */
[data-theme="dark"] .tab,
[data-theme="dark"] .tab-item,
[data-theme="dark"] .tab-btn {
    color: var(--text-secondary) !important;
}
[data-theme="dark"] .tab.active,
[data-theme="dark"] .tab-item.active,
[data-theme="dark"] .tab-btn.active {
    color: var(--primary) !important;
    border-color: var(--primary) !important;
}

/* ── Scrollbar (dark) ── */
[data-theme="dark"] ::-webkit-scrollbar { width: 8px; height: 8px; }
[data-theme="dark"] ::-webkit-scrollbar-track { background: var(--bg); }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: var(--bg-secondary); border-radius: 4px; }
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: #475569; }

/* ── Page-specific text colors ── */
[data-theme="dark"] .page-title,
[data-theme="dark"] .card-title,
[data-theme="dark"] h1, [data-theme="dark"] h2,
[data-theme="dark"] h3, [data-theme="dark"] h4 {
    color: var(--text) !important;
}
[data-theme="dark"] .page-subtitle,
[data-theme="dark"] .card-subtitle {
    color: var(--text-secondary) !important;
}

/* ── Search bars ── */
[data-theme="dark"] .search-input,
[data-theme="dark"] .search-box,
[data-theme="dark"] .search-bar input {
    background: var(--bg-secondary) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

/* ── Notification Panel (dropdown) ── */
[data-theme="dark"] .notification-panel {
    background: var(--bg-card) !important;
    border-color: var(--border) !important;
}
[data-theme="dark"] .notif-header {
    border-color: var(--border) !important;
}

/* ── Alert items ── */
[data-theme="dark"] .alert-item.danger {
    background: rgba(239, 68, 68, 0.12) !important;
    color: #FCA5A5 !important;
}
[data-theme="dark"] .alert-item.warning {
    background: rgba(245, 158, 11, 0.12) !important;
    color: #FDE68A !important;
}
[data-theme="dark"] .alert-item.info {
    background: rgba(59, 130, 246, 0.12) !important;
    color: #93C5FD !important;
}

/* ── Predict / Info boxes ── */
[data-theme="dark"] .predict-box {
    background: rgba(245, 158, 11, 0.1) !important;
    border-color: rgba(245, 158, 11, 0.25) !important;
    color: var(--text) !important;
}
[data-theme="dark"] .info-box,
[data-theme="dark"] .tip-box {
    background: rgba(99, 102, 241, 0.1) !important;
    border-color: rgba(99, 102, 241, 0.25) !important;
    color: var(--text) !important;
}

/* ── Stat number colors stay vibrant ── */
[data-theme="dark"] .kpi-val,
[data-theme="dark"] .stat-val,
[data-theme="dark"] .stat-number {
    color: var(--text) !important;
}

/* ── Progress bars (stay colorful) ── */
[data-theme="dark"] .progress-bar {
    background: var(--bg-secondary) !important;
}

/* ── Fee Collection ── */
[data-theme="dark"] .student-fee-row {
    border-color: var(--border) !important;
    color: var(--text) !important;
}

/* ── Transport pages ── */
[data-theme="dark"] .bus-card,
[data-theme="dark"] .route-card,
[data-theme="dark"] .veh-card,
[data-theme="dark"] .assign-card {
    background: var(--bg-card) !important;
    border-color: var(--border) !important;
}

/* ── Hostel ── */
[data-theme="dark"] .room-pill {
    background: var(--bg-secondary) !important;
    color: var(--text) !important;
}

/* ── Promotion page ── */
[data-theme="dark"] .stu-table th {
    background: var(--bg-secondary) !important;
    color: var(--text) !important;
}

/* ============================================================
   ANIMATIONS — Beautiful micro-interactions
   ============================================================ */

/* Staggered card entrance */
@keyframes cardEntrance {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.card, .kpi-card, .chart-card, .event-card, .exam-card,
.notif-item, .live-card, .cmd-card, .sr-card, .act-card {
    animation: cardEntrance 0.4s ease backwards;
}
.card:nth-child(1), .notif-item:nth-child(1) { animation-delay: 0.03s; }
.card:nth-child(2), .notif-item:nth-child(2) { animation-delay: 0.06s; }
.card:nth-child(3), .notif-item:nth-child(3) { animation-delay: 0.09s; }
.card:nth-child(4), .notif-item:nth-child(4) { animation-delay: 0.12s; }
.card:nth-child(5), .notif-item:nth-child(5) { animation-delay: 0.15s; }
.card:nth-child(6), .notif-item:nth-child(6) { animation-delay: 0.18s; }

/* Smooth hover lift */
.card:hover, .kpi-card:hover, .event-card:hover,
.exam-card:hover, .live-card:hover, .cmd-card:hover,
.notif-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Badge pulse for unread */
@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}
.notification-badge {
    animation: badgePulse 2s ease-in-out infinite;
}

/* Button shimmer on hover */
@keyframes btnShimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
.btn-primary:hover, .btn:hover[style*="background:var(--primary)"] {
    background-size: 200% auto;
    animation: btnShimmer 1.5s linear infinite;
}

/* Smooth theme transition */
*, *::before, *::after {
    transition: background-color 0.3s ease, color 0.2s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
/* Exclude elements where transition causes jank */
input, textarea, select, .sidebar, .topbar, canvas, video, img, svg, .fa, .fas, .far, .fab {
    transition: none !important;
}

/* Tab switch animation */
.notif-tab, .tab, .tab-item {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* Notification item slide-in */
@keyframes notifSlideIn {
    from { opacity: 0; transform: translateX(-12px); }
    to { opacity: 1; transform: translateX(0); }
}
.notif-item {
    animation: notifSlideIn 0.3s ease backwards !important;
}
.notif-item:nth-child(1) { animation-delay: 0.02s !important; }
.notif-item:nth-child(2) { animation-delay: 0.06s !important; }
.notif-item:nth-child(3) { animation-delay: 0.10s !important; }
.notif-item:nth-child(4) { animation-delay: 0.14s !important; }
.notif-item:nth-child(5) { animation-delay: 0.18s !important; }

/* KPI counter glow */
@keyframes kpiGlow {
    from { text-shadow: 0 0 4px rgba(79, 70, 229, 0.2); }
    to { text-shadow: 0 0 12px rgba(79, 70, 229, 0.4); }
}
[data-theme="dark"] .kpi-val,
[data-theme="dark"] .stat-val {
    animation: kpiGlow 2s ease-in-out infinite alternate;
}

/* Colorful focus rings */
input:focus, select:focus, textarea:focus {
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.3) !important;
    border-color: var(--primary) !important;
    outline: none !important;
    transition: box-shadow 0.2s ease !important;
}

/* Status dot pulse */
@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.status-dot.active, .online-dot {
    animation: statusPulse 2s ease-in-out infinite;
}

/* Smooth page content entry */
.page-content {
    animation: cardEntrance 0.35s ease;
}