/**
 * CyberTeeth - Modern SaaS Styles
 * Professional animations, transitions, and UI enhancements
 */

/* ============================================
   CSS Variables & Theme
   ============================================ */
:root {
    --primary: #0891B2;
    --primary-dark: #164E63;
    --primary-light: #22D3EE;
    --secondary: #06B6D4;
    --accent: #14B8A6;
    --accent-light: #5EEAD4;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    --light: #ECFEFF;
    --dark: #0F172A;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ============================================
   Base & Typography
   ============================================ */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--light) 100%);
    color: var(--gray-800);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--gray-900);
    letter-spacing: -0.025em;
}

/* ============================================
   Animations Keyframes
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

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

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideInUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

@keyframes ripple {
    0% { transform: scale(0); opacity: 1; }
    100% { transform: scale(4); opacity: 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--primary), 0 0 10px var(--primary); }
    50% { box-shadow: 0 0 20px var(--primary), 0 0 30px var(--primary); }
}

/* ============================================
   Animation Utility Classes
   ============================================ */
.animate-fade-in { animation: fadeIn var(--transition-slow) ease-out forwards; }
.animate-fade-in-up { animation: fadeInUp var(--transition-slow) ease-out forwards; }
.animate-fade-in-down { animation: fadeInDown var(--transition-slow) ease-out forwards; }
.animate-fade-in-left { animation: fadeInLeft var(--transition-slow) ease-out forwards; }
.animate-fade-in-right { animation: fadeInRight var(--transition-slow) ease-out forwards; }
.animate-scale-in { animation: scaleIn var(--transition-slow) ease-out forwards; }
.animate-bounce { animation: bounce 1s ease-in-out infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-float { animation: float 3s ease-in-out infinite; }

/* Staggered animations */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }
.stagger-6 { animation-delay: 300ms; }

/* ============================================
   Cards - Modern Glass Effect
   ============================================ */
.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    overflow: hidden;
}

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

.card-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    border-bottom: 1px solid var(--gray-100);
    padding: 1rem 1.25rem;
    font-weight: 600;
}

/* ============================================
   Buttons - Premium Style
   ============================================ */
.btn {
    position: relative;
    font-weight: 500;
    border-radius: var(--radius);
    padding: 0.625rem 1.25rem;
    transition: all var(--transition);
    overflow: hidden;
    letter-spacing: 0.01em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    box-shadow: 0 4px 14px 0 rgba(8, 145, 178, 0.39);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(8, 145, 178, 0.5);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    border: none;
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.39);
}

.btn-success:hover {
    background: linear-gradient(135deg, #34D399 0%, var(--success) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #DC2626 100%);
    border: none;
    box-shadow: 0 4px 14px 0 rgba(239, 68, 68, 0.39);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #F87171 0%, var(--danger) 100%);
    transform: translateY(-2px);
}

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

.btn-outline-primary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px 0 rgba(8, 145, 178, 0.39);
}

.btn-light {
    background: white;
    border: 1px solid var(--gray-200);
    color: var(--gray-700);
}

.btn-light:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
    transform: translateY(-1px);
}

/* Icon buttons */
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
}

.btn-icon-lg {
    width: 48px;
    height: 48px;
}

.btn-icon-sm {
    width: 32px;
    height: 32px;
}

/* ============================================
   Form Controls - Modern Input Style
   ============================================ */
.form-control, .form-select {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all var(--transition);
    background: white;
}

.form-control:hover, .form-select:hover {
    border-color: var(--gray-300);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(8, 145, 178, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-label {
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Floating labels */
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: var(--primary);
}

/* Input groups */
.input-group .form-control {
    border-radius: var(--radius);
}

.input-group .btn {
    border-radius: var(--radius);
}

/* ============================================
   Tables - Clean Modern Style
   ============================================ */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    color: var(--gray-700);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem;
    border-bottom: 2px solid var(--gray-200);
}

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

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

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--gray-100);
}

.table-striped tbody tr:nth-of-type(odd) {
    background: rgba(236, 254, 255, 0.3);
}

/* ============================================
   Badges - Pill Style with Glow
   ============================================ */
.badge {
    font-weight: 500;
    padding: 0.4em 0.8em;
    border-radius: 50px;
    font-size: 0.75rem;
    letter-spacing: 0.02em;
    transition: all var(--transition);
}

.badge-success, .bg-success {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%) !important;
    color: #065F46 !important;
}

.badge-warning, .bg-warning {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%) !important;
    color: #92400E !important;
}

.badge-danger, .bg-danger {
    background: linear-gradient(135deg, #FEE2E2 0%, #FECACA 100%) !important;
    color: #991B1B !important;
}

.badge-info, .bg-info {
    background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 100%) !important;
    color: #1E40AF !important;
}

.badge-primary, .bg-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    color: white !important;
}

/* ============================================
   Stat Cards - Dashboard Style
   ============================================ */
.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-card .stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--light) 0%, rgba(8, 145, 178, 0.1) 100%);
    color: var(--primary);
    margin-bottom: 1rem;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card .stat-label {
    color: var(--gray-500);
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 0.25rem;
}

.stat-card .stat-change {
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

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

.stat-card .stat-change.negative {
    color: var(--danger);
}

/* ============================================
   Quick Actions - Interactive Cards
   ============================================ */
.quick-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-decoration: none;
    color: var(--gray-700);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.quick-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    opacity: 0;
    transition: opacity var(--transition);
}

.quick-action:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-xl);
    color: white;
}

.quick-action:hover::before {
    opacity: 1;
}

.quick-action i, .quick-action h6, .quick-action small {
    position: relative;
    z-index: 1;
    transition: all var(--transition);
}

.quick-action i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.quick-action:hover i {
    color: white;
    transform: scale(1.1);
}

.quick-action h6 {
    font-weight: 600;
    margin: 0;
}

.quick-action:hover h6 {
    color: white;
}

.quick-action small {
    color: var(--gray-500);
    font-size: 0.8rem;
}

.quick-action:hover small {
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   Alerts - Modern Style
   ============================================ */
.alert {
    border: none;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: block;
    animation: fadeInDown var(--transition-slow) ease-out;
}

.alert-success {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    color: #065F46;
}

.alert-danger {
    background: linear-gradient(135deg, #FEE2E2 0%, #FECACA 100%);
    color: #991B1B;
}

.alert-warning {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    color: #92400E;
}

.alert-info {
    background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 100%);
    color: #1E40AF;
}

/* ============================================
   Modals - Smooth Animations
   ============================================ */
.modal.fade .modal-dialog {
    transform: scale(0.9) translateY(-20px);
    transition: transform var(--transition-slow);
}

.modal.show .modal-dialog {
    transform: scale(1) translateY(0);
}

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

.modal-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    border-bottom: 1px solid var(--gray-100);
    padding: 1.25rem 1.5rem;
}

.modal-title {
    font-weight: 600;
    color: var(--gray-900);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
    padding: 1rem 1.5rem;
}

.modal-backdrop.show {
    opacity: 0.6;
    backdrop-filter: blur(4px);
}

/* ============================================
   Dropdowns - Elegant Style
   ============================================ */
.dropdown-menu {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem;
    animation: scaleIn var(--transition) ease-out;
    transform-origin: top right;
}

.dropdown-item {
    border-radius: var(--radius);
    padding: 0.625rem 1rem;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--light);
    color: var(--primary);
}

.dropdown-item:active {
    background: var(--primary);
    color: white;
}

.dropdown-divider {
    margin: 0.5rem 0;
    border-color: var(--gray-100);
}

/* ============================================
   Tooltips - Modern Style
   ============================================ */
.tooltip {
    font-size: 0.8rem;
}

.tooltip-inner {
    background: var(--gray-900);
    border-radius: var(--radius);
    padding: 0.5rem 0.75rem;
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Progress Bars - Animated
   ============================================ */
.progress {
    height: 8px;
    border-radius: 50px;
    background: var(--gray-100);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 50px;
    transition: width 1s ease-out;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 2s infinite;
    background-size: 200% 100%;
}

/* ============================================
   Loading States
   ============================================ */
.skeleton {
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius);
}

.spinner-border {
    border-width: 3px;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ============================================
   Sidebar Enhancements
   ============================================ */
.sidebar {
    background: linear-gradient(180deg, var(--primary-dark) 0%, #0E4A5C 50%, var(--primary) 100%);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
}

.sidebar .nav-link {
    position: relative;
    margin: 2px 12px;
    border-radius: var(--radius);
    transition: all var(--transition);
}

.sidebar .nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--accent);
    border-radius: 0 3px 3px 0;
    transition: height var(--transition);
}

.sidebar .nav-link:hover::before,
.sidebar .nav-link.active::before {
    height: 60%;
}

.sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(4px);
}

.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.sidebar .nav-link i {
    transition: transform var(--transition);
}

.sidebar .nav-link:hover i {
    transform: scale(1.1);
}

/* ============================================
   Notification Bell Animation
   ============================================ */
.notification-bell {
    position: relative;
}

.notification-bell.has-notifications::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 12px;
    height: 12px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid white;
    animation: pulse 2s infinite;
}

.notification-bell:hover i {
    animation: shake 0.5s ease-in-out;
}

/* ============================================
   Page Transitions & Global Fade Setup
   ============================================ */
.main-content {
    animation: fadeIn var(--transition-slow) ease-out;
}

/* Initial hidden state for animated elements - JS will reveal them */
body:not(.loaded) .card,
body:not(.loaded) .stat-card,
body:not(.loaded) .quick-action,
body:not(.loaded) .alert,
body:not(.loaded) .table,
body:not(.loaded) .list-group {
    opacity: 0;
}

/* Ensure smooth transitions after page load */
body.loaded .card,
body.loaded .stat-card,
body.loaded .quick-action,
body.loaded .alert,
body.loaded .table,
body.loaded .list-group,
body.loaded .form-group,
body.loaded .page-header,
body.loaded .breadcrumb,
body.loaded .nav-tabs,
body.loaded .pagination,
body.loaded .progress,
body.loaded .empty-state {
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   List Groups - Modern Style
   ============================================ */
.list-group {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.list-group-item {
    border: none;
    border-bottom: 1px solid var(--gray-100);
    padding: 1rem 1.25rem;
    transition: all var(--transition);
}

.list-group-item:last-child {
    border-bottom: none;
}

.list-group-item:hover {
    background: var(--light);
}

.list-group-item-action:active {
    background: var(--gray-100);
}

/* ============================================
   Tabs - Pill Style
   ============================================ */
.nav-tabs {
    border: none;
    gap: 0.5rem;
}

.nav-tabs .nav-link {
    border: none;
    border-radius: var(--radius);
    padding: 0.75rem 1.25rem;
    color: var(--gray-600);
    font-weight: 500;
    transition: all var(--transition);
}

.nav-tabs .nav-link:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.nav-tabs .nav-link.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 14px rgba(8, 145, 178, 0.3);
}

/* ============================================
   Pagination - Modern Style
   ============================================ */
.pagination {
    gap: 0.25rem;
}

.page-link {
    border: none;
    border-radius: var(--radius);
    padding: 0.5rem 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
    transition: all var(--transition);
}

.page-link:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.page-item.active .page-link {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(8, 145, 178, 0.3);
}

/* ============================================
   Toasts - Slide In Animation
   ============================================ */
.toast {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    animation: slideInUp var(--transition-slow) ease-out;
}

.toast-header {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-100);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
    transition: background var(--transition);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

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

/* ============================================
   Focus Visible - Accessibility
   ============================================ */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus-visible,
.btn:focus-visible {
    box-shadow: 0 0 0 4px rgba(8, 145, 178, 0.25);
}

/* ============================================
   Status Indicators
   ============================================ */
.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    animation: pulse 2s infinite;
}

.status-dot.offline {
    background: var(--gray-400);
}

.status-dot.busy {
    background: var(--warning);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

/* ============================================
   Avatar Styles
   ============================================ */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid white;
    box-shadow: var(--shadow);
}

.avatar-lg {
    width: 64px;
    height: 64px;
}

.avatar-sm {
    width: 32px;
    height: 32px;
}

.avatar-group {
    display: flex;
}

.avatar-group .avatar {
    margin-left: -12px;
    transition: transform var(--transition);
}

.avatar-group .avatar:first-child {
    margin-left: 0;
}

.avatar-group .avatar:hover {
    transform: translateY(-4px);
    z-index: 1;
}

/* ============================================
   Empty States
   ============================================ */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--gray-500);
}

.empty-state i {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

.empty-state h5 {
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.empty-state p {
    max-width: 300px;
    margin: 0 auto;
}

/* ============================================
   Hover Effects Utilities
   ============================================ */
.hover-lift {
    transition: transform var(--transition), box-shadow var(--transition);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-scale {
    transition: transform var(--transition);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-glow {
    transition: box-shadow var(--transition);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(8, 145, 178, 0.4);
}

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

/* ============================================
   Glass Effect
   ============================================ */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.glass-dark {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   Responsive Utilities
   ============================================ */
@media (max-width: 991px) {
    .stat-card .stat-value {
        font-size: 1.5rem;
    }
    
    .quick-action {
        padding: 1rem;
    }
    
    .quick-action i {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .card {
        border-radius: var(--radius);
    }
    
    .btn {
        padding: 0.5rem 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .sidebar,
    .mobile-header,
    .btn,
    .no-print {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}


/* ============================================
   PWA Install Banner
   ============================================ */
#pwa-install-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#pwa-install-banner.show {
    transform: translateY(0);
}

.pwa-banner-content {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.pwa-banner-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.pwa-banner-text {
    flex: 1;
    min-width: 0;
}

.pwa-banner-text strong {
    display: block;
    color: var(--gray-900);
    font-size: 1rem;
    margin-bottom: 2px;
}

.pwa-banner-text span {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.pwa-banner-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

@media (max-width: 576px) {
    .pwa-banner-content {
        flex-wrap: wrap;
        padding: 16px;
    }
    
    .pwa-banner-text {
        flex: 1 1 calc(100% - 64px);
    }
    
    .pwa-banner-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 8px;
    }
}


/* ============================================
   Notification Badge
   ============================================ */
.notification-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    color: white;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 0.7rem;
    min-width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(220, 53, 69, 0.5);
    z-index: 10;
    border: 2px solid white;
    animation: pulse 2s ease-in-out infinite;
}

.notification-btn {
    position: relative;
    overflow: visible !important;
}