/**
 * UP Cebu Course Management System - Main Stylesheet
 * Consolidated CSS following best practices
 */

/* ==========================================================================
   CSS Reset & Base
   ========================================================================== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* UP Color Palette */
    --up-green: #1A6B5C;
    --up-green-dark: #145549;
    --up-green-light: #E8F5F2;
    --up-maroon: #8C2448;
    --up-maroon-dark: #721A38;
    --up-maroon-light: #F8E8ED;
    --up-gold: #D4A017;
    --up-gold-light: #FDF6E3;

    /* Semantic Colors */
    --primary: var(--up-green);
    --primary-dark: var(--up-green-dark);
    --primary-light: var(--up-green-light);
    --accent: var(--up-gold);
    --accent-light: var(--up-gold-light);
    --secondary: var(--up-maroon);
    --secondary-light: var(--up-maroon-light);

    /* Status Colors */
    --success: #28a745;
    --success-light: #d4edda;
    --warning: #ffc107;
    --warning-light: #fff3cd;
    --danger: #dc3545;
    --danger-light: #f8d7da;
    --info: #2196F3;
    --info-light: #e3f2fd;

    /* Neutrals */
    --bg-main: #F8FAFB;
    --bg-white: #FFFFFF;
    --text-primary: #1F2937;
    --text-secondary: #4B5563;
    --text-muted: #9CA3AF;
    --border: #E5E7EB;
    --border-light: #F3F4F6;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);

    /* Sizing */
    --radius: 8px;
    --radius-sm: 6px;
    --radius-lg: 12px;
    --sidebar-width: 260px;
    --transition: 150ms ease;
}

/* ==========================================================================
   Base Typography
   ========================================================================== */

html {
    background: var(--bg-main);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.app-layout {
    display: flex;
    min-height: 100vh;
    background: var(--bg-main);
    isolation: isolate;
    position: relative;
    z-index: 0;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-white);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: width var(--transition), transform var(--transition);
    overflow: visible; /* Allow toggle button to extend outside */
    isolation: isolate;
    will-change: transform;
}

.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-main) 100%);
}

.sidebar-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 12px;
}

.sidebar-logos img {
    height: 42px;
    width: auto;
}

.sidebar-logo {
    display: block;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
}

.sidebar-logo-text {
    font-weight: 600;
    font-size: 14px;
    color: var(--up-green);
}

.sidebar-logo-subtitle {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--bg-main);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
}

.nav-item-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.nav-item-badge {
    margin-left: auto;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition);
}

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

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    font-weight: 600;
}

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

.user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 12px;
    color: var(--text-muted);
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    display: none; /* Hidden on mobile, shown on desktop */
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    z-index: 101;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    line-height: 1;
    color: var(--text-secondary);
    transition: all var(--transition);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.sidebar-toggle:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

.sidebar-toggle::before {
    content: '\2039'; /* Single left-pointing angle quotation mark - more universal */
    font-weight: bold;
}

/* Collapsed Sidebar State */
.sidebar.collapsed {
    width: 68px;
}

.sidebar.collapsed .sidebar-toggle::before {
    content: '\203A'; /* Single right-pointing angle quotation mark */
}

.sidebar.collapsed .sidebar-logos {
    flex-direction: column;
    gap: 4px;
}

.sidebar.collapsed .sidebar-logos img {
    height: 28px;
}

.sidebar.collapsed .sidebar-logo-text,
.sidebar.collapsed .sidebar-logo-subtitle,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-item span:not(.nav-item-icon),
.sidebar.collapsed .nav-item-badge,
.sidebar.collapsed .user-info {
    display: none;
}

.sidebar.collapsed .sidebar-header {
    padding: 12px 8px;
}

.sidebar.collapsed .sidebar-nav {
    padding: 12px 8px;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 12px;
}

.sidebar.collapsed .nav-item-icon {
    font-size: 20px;
}

.sidebar.collapsed .sidebar-footer {
    padding: 12px 8px;
}

.sidebar.collapsed .user-menu {
    justify-content: center;
    padding: 8px;
}

.sidebar.collapsed .user-avatar {
    width: 36px;
    height: 36px;
}

/* Collapsed sidebar - main content adjustment */
.app-layout.sidebar-collapsed .main-content {
    margin-left: 68px;
}

/* Desktop: Show toggle button */
@media (min-width: 1025px) {
    .sidebar-toggle {
        display: flex;
    }
}

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

/* Header */
.page-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.breadcrumb-item {
    color: var(--text-muted);
    text-decoration: none;
}

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

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

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

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

/* Page Content */
.page-content {
    flex: 1;
    padding: 32px;
    background: var(--bg-main);
}

/* ==========================================================================
   Button System (Unified)
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    font-family: inherit;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--up-green) 0%, #238A79 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(26, 107, 92, 0.25);
}

/* Secondary Button (Outline) */
.btn-secondary {
    background: transparent;
    color: var(--up-green);
    border: 2px solid var(--up-green);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--up-green);
    color: white;
    transform: translateY(-2px);
}

/* Ghost Button */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-main);
    color: var(--text-primary);
}

/* Danger Button */
.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #c82333;
    transform: translateY(-2px);
}

/* Button Sizes */
.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* ==========================================================================
   Form Components
   ========================================================================== */

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 14px;
}

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    transition: all var(--transition);
    background: var(--bg-white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: 2px solid var(--up-green);
    outline-offset: 2px;
    border-color: var(--up-green);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-help {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ==========================================================================
   Card Components
   ========================================================================== */

.card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

/* ==========================================================================
   Modal Component
   ========================================================================== */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 2px solid var(--up-gold);
}

.modal-title {
    color: var(--up-green);
    margin: 0;
    font-size: 1.3em;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-main);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2em;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--danger-light);
    color: var(--danger);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 400px;
    animation: toastSlideIn 0.3s ease-out;
    border-left: 4px solid var(--text-muted);
}

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

.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-content { flex: 1; }
.toast-title { font-weight: 600; margin-bottom: 2px; }
.toast-message { font-size: 14px; color: var(--text-secondary); }
.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}

/* ==========================================================================
   Alert Components
   ========================================================================== */

.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: var(--success-light);
    border-left: 4px solid var(--success);
    color: #155724;
}

.alert-error {
    background: var(--danger-light);
    border-left: 4px solid var(--danger);
    color: #721c24;
}

.alert-warning {
    background: var(--warning-light);
    border-left: 4px solid var(--warning);
    color: #856404;
}

.alert-info {
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
    color: var(--primary-dark);
}

/* ==========================================================================
   Badge Components
   ========================================================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
}

.badge-success {
    background: #D1FAE5;
    color: #065F46;
}

.badge-warning {
    background: #FEF3C7;
    color: #92400E;
}

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

.badge-muted {
    background: var(--border-light);
    color: var(--text-muted);
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-top-color: var(--up-green);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner.lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

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

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-muted);
}

.loading-state .spinner {
    margin-bottom: 16px;
}

/* ==========================================================================
   Empty States
   ========================================================================== */

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3em;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.2em;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

/* ==========================================================================
   Tables
   ========================================================================== */

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
}

.table thead {
    background: linear-gradient(135deg, var(--up-green) 0%, #238A79 100%);
    color: white;
}

.table th {
    padding: 16px 20px;
    text-align: left;
    font-weight: 600;
}

.table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
}

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

/* ==========================================================================
   Accessibility
   ========================================================================== */

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    z-index: 9999;
    text-decoration: none;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 16px;
}

/* Focus Indicators - WCAG 2.4.7 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--up-gold);
    outline-offset: 2px;
}

.nav-item:focus-visible {
    outline: 3px solid var(--up-gold);
    outline-offset: 2px;
    background: var(--bg-main);
}

/* ==========================================================================
   Mobile Navigation
   ========================================================================== */

.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--text-primary);
    font-size: 24px;
}

.mobile-menu-btn:hover {
    background: var(--bg-main);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.visible {
    display: block;
    opacity: 1;
}

.sidebar-close-btn {
    display: none;
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--text-muted);
    font-size: 24px;
    align-items: center;
    justify-content: center;
}

.sidebar-close-btn:hover {
    background: var(--bg-main);
    color: var(--text-primary);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar-close-btn {
        display: flex;
    }

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

    .mobile-menu-btn {
        display: flex;
    }

    .page-header {
        padding: 12px 16px;
    }

    .page-content {
        padding: 16px;
    }
}

@media (min-width: 1025px) {
    .mobile-menu-btn,
    .sidebar-close-btn {
        display: none;
    }
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-primary-color { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }

.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ==========================================================================
   Auth Pages (Login)
   ========================================================================== */

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    padding: 20px;
}

.auth-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--up-green), var(--up-maroon));
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header .auth-icon {
    width: 64px;
    height: 64px;
    background: var(--up-green);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 28px;
}

.auth-header h1 {
    color: var(--up-green);
    margin-bottom: 8px;
    font-size: 1.75em;
    font-weight: 600;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 0.95em;
}

.auth-header .subtitle {
    font-size: 0.85em;
    color: var(--text-muted);
    margin-top: 4px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.auth-footer p {
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-size: 0.9em;
}

.auth-footer a,
.auth-links a {
    color: var(--up-green);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.auth-footer a:hover,
.auth-links a:hover {
    color: var(--up-maroon);
}

.auth-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.divider {
    text-align: center;
    margin: 16px 0;
    color: var(--text-muted);
    font-size: 0.85em;
}

/* ==========================================================================
   Feedback Modal (Replacement for prompt())
   ========================================================================== */

.feedback-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--up-maroon), var(--up-green));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
}

.feedback-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}