:root {
     --primary: #2563EB;
     --secondary: #14B8A6;
     --sidebar-width: 272px;
     --sidebar-collapsed: 78px;
     --header-height: 70px;
 }

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

 body {
     font-family: 'Inter', sans-serif;
     background: #F1F5F9;
     overflow-x: hidden;
 }

 .dark body,
 html.dark body {
     background: #0F172A;
 }

 ::-webkit-scrollbar {
     width: 5px;
     height: 5px;
 }

 ::-webkit-scrollbar-track {
     background: transparent;
 }

 ::-webkit-scrollbar-thumb {
     background: #94a3b8;
     border-radius: 10px;
 }

 .dark ::-webkit-scrollbar-thumb {
     background: #475569;
 }

 /* Sidebar */
 .sidebar {
     width: var(--sidebar-width);
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
     z-index: 50;
 }

 .sidebar.collapsed {
     width: var(--sidebar-collapsed);
 }

 .sidebar.collapsed .sidebar-text,
 .sidebar.collapsed .sidebar-logo-text,
 .sidebar.collapsed .sidebar-badge,
 .sidebar.collapsed .sidebar-submenu,
 .sidebar.collapsed .menu-section-title,
 .sidebar.collapsed .sidebar-upgrade {
     display: none;
 }

 .sidebar.collapsed .sidebar-link {
     justify-content: center;
     padding: 10px 12px;
 }

 .sidebar.collapsed .sidebar-logo {
     justify-content: center;
 }

 .sidebar-link {
     transition: all 0.2s ease;
     position: relative;
     border-radius: 10px;
 }

 .sidebar-link::before {
     content: '';
     position: absolute;
     left: 0;
     top: 0;
     height: 100%;
     width: 3px;
     background: var(--primary);
     transform: scaleY(0);
     transition: transform 0.2s ease;
     border-radius: 0 3px 3px 0;
 }

 .sidebar-link:hover::before,
 .sidebar-link.active::before {
     transform: scaleY(1);
 }

 .main-content {
     margin-left: var(--sidebar-width);
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
     min-height: 100vh;
 }

 .main-content.expanded {
     margin-left: var(--sidebar-collapsed);
 }

 @media (max-width: 1023px) {
     .main-content {
         margin-left: 0 !important;
     }
 }

 .header {
     height: var(--header-height);
 }

 .header.scrolled {
     box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
 }

 .dark .header.scrolled {
     box-shadow: 0 2px 15px rgba(0, 0, 0, 0.25);
 }

 /* Cards */
 .stat-card {
     transition: all 0.3s ease;
     position: relative;
     overflow: hidden;
 }

 .stat-card::before {
     content: '';
     position: absolute;
     top: 0;
     left: 0;
     right: 0;
     height: 3px;
     background: linear-gradient(90deg, var(--primary), var(--secondary));
     transform: scaleX(0);
     transform-origin: left;
     transition: transform 0.4s ease;
 }

 .stat-card:hover::before {
     transform: scaleX(1);
 }

 .stat-card:hover {
     transform: translateY(-3px);
     box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
 }

 .dark .stat-card:hover {
     box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
 }

 .gradient-primary {
     background: linear-gradient(135deg, #2563EB, #1d4ed8);
 }

 .gradient-secondary {
     background: linear-gradient(135deg, #14B8A6, #0d9488);
 }

 .gradient-success {
     background: linear-gradient(135deg, #22C55E, #16a34a);
 }

 .gradient-warning {
     background: linear-gradient(135deg, #F59E0B, #d97706);
 }

 .gradient-danger {
     background: linear-gradient(135deg, #EF4444, #dc2626);
 }

 .gradient-mixed {
     background: linear-gradient(135deg, #2563EB, #14B8A6);
 }

 /* Badge */
 .badge {
     display: inline-flex;
     align-items: center;
     gap: 4px;
     padding: 3px 10px;
     border-radius: 9999px;
     font-size: 11px;
     font-weight: 600;
     white-space: nowrap;
 }

 .badge::before {
     content: '';
     width: 6px;
     height: 6px;
     border-radius: 50%;
 }

 .badge-confirmed {
     background: rgba(34, 197, 94, 0.1);
     color: #16a34a;
 }

 .badge-confirmed::before {
     background: #22C55E;
 }

 .badge-pending {
     background: rgba(245, 158, 11, 0.1);
     color: #d97706;
 }

 .badge-pending::before {
     background: #F59E0B;
 }

 .badge-completed {
     background: rgba(37, 99, 235, 0.1);
     color: #1d4ed8;
 }

 .badge-completed::before {
     background: #2563EB;
 }

 .badge-cancelled {
     background: rgba(239, 68, 68, 0.1);
     color: #dc2626;
 }

 .badge-cancelled::before {
     background: #EF4444;
 }

 .badge-inprogress {
     background: rgba(139, 92, 246, 0.1);
     color: #7c3aed;
 }

 .badge-inprogress::before {
     background: #8B5CF6;
 }

 .notif-dot::after {
     content: '';
     position: absolute;
     top: 0;
     right: 0;
     width: 8px;
     height: 8px;
     background: #EF4444;
     border-radius: 50%;
     border: 2px solid white;
 }

 .dark .notif-dot::after {
     border-color: #1E293B;
 }

 /* Dropdown */
 .dropdown-menu {
     transform-origin: top right;
 }

 .dropdown-menu.show {
     animation: ddIn 0.25s ease forwards;
 }

 @keyframes ddIn {
     from {
         opacity: 0;
         transform: scale(0.95) translateY(-4px);
     }

     to {
         opacity: 1;
         transform: scale(1) translateY(0);
     }
 }

 /* Modal */
 .modal-overlay {
     position: fixed;
     inset: 0;
     z-index: 70;
     background: rgba(0, 0, 0, 0.6);
     backdrop-filter: blur(4px);
     opacity: 0;
     visibility: hidden;
     transition: all 0.3s ease;
     display: flex;
     align-items: center;
     justify-content: center;
     padding: 16px;
 }

 .modal-overlay.active {
     opacity: 1;
     visibility: visible;
 }

 .modal-box {
     background: white;
     border-radius: 20px;
     width: 100%;
     max-height: 90vh;
     overflow-y: auto;
     box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
     transform: scale(0.9) translateY(20px);
     opacity: 0;
     transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
 }

 .dark .modal-box {
     background: #1E293B;
     box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
 }

 .modal-overlay.active .modal-box {
     transform: scale(1) translateY(0);
     opacity: 1;
 }

 /* Toast */
 .toast-item {
     animation: toastSlide 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
     pointer-events: auto;
 }

 @keyframes toastSlide {
     from {
         opacity: 0;
         transform: translateX(100%);
     }

     to {
         opacity: 1;
         transform: translateX(0);
     }
 }

 .toast-item.removing {
     animation: toastHide 0.3s ease forwards;
 }

 @keyframes toastHide {
     to {
         opacity: 0;
         transform: translateX(100%);
     }
 }

 /* Table */
 .table-wrap {
     overflow-x: auto;
     -webkit-overflow-scrolling: touch;
 }

 /* Page Loader */
 .page-loader {
     position: fixed;
     inset: 0;
     z-index: 9999;
     display: flex;
     align-items: center;
     justify-content: center;
     transition: opacity 0.5s ease, visibility 0.5s ease;
 }

 .page-loader.done {
     opacity: 0;
     visibility: hidden;
     pointer-events: none;
 }

 .loader-ring {
     width: 44px;
     height: 44px;
     border: 3px solid rgba(37, 99, 235, 0.2);
     border-top-color: var(--primary);
     border-radius: 50%;
     animation: spin 0.7s linear infinite;
 }

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

 /* Calendar */
 .calendar-day {
     transition: all 0.2s ease;
     cursor: pointer;
 }

 .calendar-day:hover:not(.disabled) {
     background: rgba(37, 99, 235, 0.1);
 }

 .calendar-day.today {
     background: var(--primary);
     color: white !important;
     font-weight: 700;
 }

 .calendar-day.has-events {
     position: relative;
 }

 .calendar-day.has-events::after {
     content: '';
     position: absolute;
     bottom: 4px;
     left: 50%;
     transform: translateX(-50%);
     width: 4px;
     height: 4px;
     background: var(--primary);
     border-radius: 50%;
 }

 .calendar-day.today.has-events::after {
     background: white;
 }

 .calendar-day.disabled {
     opacity: 0.3;
     cursor: not-allowed;
 }

 /* Tabs */
 .tab-btn {
     position: relative;
     transition: all 0.2s ease;
 }

 .tab-btn.active {
     color: var(--primary) !important;
 }

 .tab-btn.active::after {
     content: '';
     position: absolute;
     bottom: -1px;
     left: 0;
     right: 0;
     height: 2px;
     background: var(--primary);
     border-radius: 2px;
 }

 /* Timeline appointment */
 .time-slot {
     transition: all 0.2s ease;
 }

 .time-slot:hover {
     transform: translateX(4px);
 }

 /* View toggle */
 .view-toggle-btn.active {
     background: white;
     color: var(--primary);
     box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
 }

 .dark .view-toggle-btn.active {
     background: #334155;
     color: #60a5fa;
 }

 /* Kanban */
 .kanban-column {
     min-height: 400px;
 }

 .kanban-card {
     transition: all 0.2s ease;
     cursor: pointer;
 }

 .kanban-card:hover {
     transform: translateY(-2px);
     box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
 }

 .dark .kanban-card:hover {
     box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
 }

 /* Progress */
 .progress-animated {
     animation: progressGrow 2s ease-out forwards;
     width: 0;
 }

 @keyframes progressGrow {
     to {
         width: var(--pw);
     }
 }