/* ============================================================
   UTT Room Management System — Design System v2.0
   Modern UI/UX Overhaul
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

/* ── Design Tokens ── */
:root {
  /* Brand Colors */
  --utt-primary: #1e3a5f;
  --utt-primary-light: #2a4f7f;
  --utt-primary-dark: #152a45;
  --utt-accent: #f97316;
  --utt-accent-light: #fb923c;
  --utt-accent-dark: #ea580c;

  /* Semantic Colors */
  --utt-success: #10b981;
  --utt-success-light: #d1fae5;
  --utt-warning: #f59e0b;
  --utt-warning-light: #fef3c7;
  --utt-danger: #ef4444;
  --utt-danger-light: #fee2e2;
  --utt-info: #3b82f6;
  --utt-info-light: #dbeafe;
  --utt-purple: #8b5cf6;
  --utt-purple-light: #ede9fe;

  /* Surfaces */
  --utt-bg: #f1f5f9;
  --utt-surface: #ffffff;
  --utt-surface-hover: #f8fafc;
  --utt-surface-active: #f1f5f9;

  /* Text */
  --utt-text: #1e293b;
  --utt-text-secondary: #475569;
  --utt-text-muted: #94a3b8;
  --utt-text-inverse: #ffffff;

  /* Borders */
  --utt-border: #e2e8f0;
  --utt-border-light: #f1f5f9;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.8125rem;
  --fs-base: 0.875rem;
  --fs-lg: 1rem;
  --fs-xl: 1.125rem;
  --fs-2xl: 1.375rem;
  --fs-3xl: 1.75rem;
  --fs-4xl: 2.25rem;
  --lh-tight: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 72px;
  --topbar-height: 60px;
}

/* ── Base Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--utt-text);
  background-color: var(--utt-bg);
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--utt-text);
  margin-bottom: var(--space-3);
}

h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); font-weight: 600; }
h6 { font-size: var(--fs-base); font-weight: 600; }

a {
  color: var(--utt-info);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--utt-primary); }

/* ── Layout: Sidebar + Main ── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ── */
.app-sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: linear-gradient(180deg, var(--utt-primary-dark) 0%, var(--utt-primary) 100%);
  color: var(--utt-text-inverse);
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  transition: width var(--transition-base), transform var(--transition-base);
  overflow-y: auto;
  overflow-x: hidden;
}

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

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.sidebar-brand img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.sidebar-brand-text {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4) 0;
}

.sidebar-section {
  margin-bottom: var(--space-2);
}

.sidebar-section-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  padding: var(--space-3) var(--space-5) var(--space-2);
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-5);
  color: rgba(255,255,255,0.65);
  font-size: var(--fs-sm);
  font-weight: 500;
  border-radius: 0;
  margin: 1px 0;
  transition: all var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-decoration: none;
  position: relative;
}
.sidebar-link i {
  font-size: 1.15rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.8;
}
.sidebar-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.sidebar-link.active {
  color: #fff;
  background: rgba(255,255,255,0.12);
  font-weight: 600;
}
.sidebar-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: var(--utt-accent);
  border-radius: 0 3px 3px 0;
}
.sidebar-link .badge {
  margin-left: auto;
  font-size: var(--fs-xs);
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

/* Sidebar submenu (collapsible) */
.sidebar-submenu {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-base);
}
.sidebar-submenu.show { max-height: 600px; }
.sidebar-submenu .sidebar-link {
  padding-left: calc(var(--space-5) + 22px + var(--space-3));
  font-size: var(--fs-xs);
}

.sidebar-toggle-btn {
  cursor: pointer;
  user-select: none;
}
.sidebar-toggle-btn::after {
  content: '\F282';
  font-family: 'bootstrap-icons';
  margin-left: auto;
  font-size: 0.7rem;
  transition: transform var(--transition-fast);
  opacity: 0.5;
}
.sidebar-toggle-btn[aria-expanded="true"]::after {
  transform: rotate(90deg);
}

.sidebar-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

/* ── Top Bar ── */
.app-topbar {
  height: var(--topbar-height);
  background: var(--utt-surface);
  border-bottom: 1px solid var(--utt-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  position: sticky;
  top: 0;
  z-index: 1030;
  gap: var(--space-4);
}

.topbar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--utt-text-secondary);
  padding: var(--space-2);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.topbar-toggle:hover { background: var(--utt-surface-active); }

.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--utt-text-muted);
  flex: 1;
  min-width: 0;
}
.topbar-breadcrumb a {
  color: var(--utt-text-secondary);
  transition: color var(--transition-fast);
}
.topbar-breadcrumb a:hover { color: var(--utt-primary); }
.topbar-breadcrumb .separator { opacity: 0.4; }
.topbar-breadcrumb .current {
  color: var(--utt-text);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}
.topbar-user:hover { background: var(--utt-surface-active); }

.topbar-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--utt-primary), var(--utt-accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-sm);
  flex-shrink: 0;
}
.topbar-user-info {
  line-height: 1.2;
}
.topbar-user-name {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--utt-text);
}
.topbar-user-role {
  font-size: var(--fs-xs);
  color: var(--utt-text-muted);
}

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

.app-content {
  flex: 1;
  padding: var(--space-6);
}

.app-footer {
  padding: var(--space-4) var(--space-6);
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--utt-text-muted);
  border-top: 1px solid var(--utt-border);
  background: var(--utt-surface);
}

/* Page header */
.page-header {
  margin-bottom: var(--space-6);
}
.page-title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--utt-text);
  margin-bottom: var(--space-1);
}
.page-subtitle {
  font-size: var(--fs-sm);
  color: var(--utt-text-muted);
  margin: 0;
}

/* ── Cards ── */
.card {
  background: var(--utt-surface);
  border: 1px solid var(--utt-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  overflow: hidden;
}
.card:hover {
  box-shadow: var(--shadow-md);
}
/* Prevent stat/kpi cards from lifting on hover */
.stat-card:hover,
.kpi-card:hover {
  transform: none;
}

.card-header {
  background: transparent !important;
  border-bottom: 1px solid var(--utt-border-light);
  padding: var(--space-4) var(--space-5);
  font-weight: 600;
  color: var(--utt-text) !important;
  border-radius: 0 !important;
}
.card-header h5,
.card-header h6 {
  margin: 0;
  color: var(--utt-text);
}

.card-body {
  padding: var(--space-5);
}

/* Stat / KPI Cards */
.stat-card {
  border: 1px solid var(--utt-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
  background: var(--utt-surface);
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}
.stat-card.stat-primary::before { background: var(--utt-primary); }
.stat-card.stat-success::before { background: var(--utt-success); }
.stat-card.stat-warning::before { background: var(--utt-warning); }
.stat-card.stat-danger::before { background: var(--utt-danger); }
.stat-card.stat-info::before { background: var(--utt-info); }
.stat-card.stat-accent::before { background: var(--utt-accent); }
.stat-card.stat-purple::before { background: var(--utt-purple); }

.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}
.stat-card.stat-primary .stat-icon { background: rgba(30,58,95,0.08); color: var(--utt-primary); }
.stat-card.stat-success .stat-icon { background: var(--utt-success-light); color: var(--utt-success); }
.stat-card.stat-warning .stat-icon { background: var(--utt-warning-light); color: var(--utt-warning); }
.stat-card.stat-danger .stat-icon { background: var(--utt-danger-light); color: var(--utt-danger); }
.stat-card.stat-info .stat-icon { background: var(--utt-info-light); color: var(--utt-info); }
.stat-card.stat-accent .stat-icon { background: rgba(249,115,22,0.1); color: var(--utt-accent); }
.stat-card.stat-purple .stat-icon { background: var(--utt-purple-light); color: var(--utt-purple); }

.stat-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--utt-text-muted);
  margin-bottom: var(--space-1);
}
.stat-value {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--utt-text);
  line-height: 1;
  margin-bottom: var(--space-1);
}

/* Action Cards (Admin Dashboard shortcuts) */
.action-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--utt-border);
  border-radius: var(--radius-md);
  background: var(--utt-surface);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: var(--utt-text);
}
.action-card:hover {
  border-color: var(--utt-primary);
  box-shadow: var(--shadow-sm);
  color: var(--utt-primary);
  transform: translateY(-1px);
}
.action-card .action-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.action-card .action-text {
  font-weight: 600;
  font-size: var(--fs-sm);
}
.action-card .action-desc {
  font-size: var(--fs-xs);
  color: var(--utt-text-muted);
  margin: 0;
}

/* ── Tables ── */
.table {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
  font-size: var(--fs-sm);
}
.table thead th {
  background: var(--utt-bg);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--utt-text-secondary);
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid var(--utt-border);
  border-top: none;
  white-space: nowrap;
}
.table tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--utt-border-light);
  vertical-align: middle;
  color: var(--utt-text);
}
.table tbody tr {
  transition: background var(--transition-fast);
}
.table tbody tr:hover {
  background: var(--utt-surface-hover);
}
.table tbody tr:last-child td {
  border-bottom: none;
}
/* Remove default Bootstrap table borders */
.table-bordered,
.table-bordered th,
.table-bordered td {
  border: none !important;
}
.table-bordered thead th {
  border-bottom: 2px solid var(--utt-border) !important;
}
.table-bordered tbody td {
  border-bottom: 1px solid var(--utt-border-light) !important;
}

/* Empty state for tables / lists */
.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--utt-text-muted);
}
.empty-state i {
  font-size: 3rem;
  opacity: 0.3;
  display: block;
  margin-bottom: var(--space-4);
}
.empty-state p {
  font-size: var(--fs-sm);
  margin: 0;
}

/* ── Buttons ── */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-sm);
  border-radius: var(--radius-sm);
  padding: 0.45rem 1rem;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn:active {
  transform: translateY(0);
}
.btn-sm {
  font-size: var(--fs-xs);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
}
.btn-lg {
  font-size: var(--fs-lg);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-md);
}

/* Custom brand buttons */
.btn-utt {
  background: linear-gradient(135deg, var(--utt-primary), var(--utt-primary-light));
  color: #fff;
  border: none;
}
.btn-utt:hover {
  background: linear-gradient(135deg, var(--utt-primary-light), var(--utt-primary));
  color: #fff;
}
.btn-accent {
  background: linear-gradient(135deg, var(--utt-accent), var(--utt-accent-light));
  color: #fff;
  border: none;
}
.btn-accent:hover {
  background: linear-gradient(135deg, var(--utt-accent-light), var(--utt-accent));
  color: #fff;
}

/* ── Forms ── */
.form-control, .form-select {
  border: 1px solid var(--utt-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.85rem;
  font-size: var(--fs-sm);
  color: var(--utt-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background-color: var(--utt-surface);
}
.form-control:focus, .form-select:focus {
  border-color: var(--utt-primary);
  box-shadow: 0 0 0 3px rgba(30,58,95,0.1);
  outline: none;
}
.form-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--utt-text-secondary);
  margin-bottom: var(--space-1);
}

/* ── Badges ── */
.badge {
  font-weight: 600;
  font-size: var(--fs-xs);
  padding: 0.25em 0.6em;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

/* ── Alerts / Toasts ── */
.alert {
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid;
}
.alert-success { background: var(--utt-success-light); border-left-color: var(--utt-success); color: #065f46; }
.alert-danger  { background: var(--utt-danger-light);  border-left-color: var(--utt-danger);  color: #991b1b; }
.alert-warning { background: var(--utt-warning-light); border-left-color: var(--utt-warning); color: #92400e; }
.alert-info    { background: var(--utt-info-light);    border-left-color: var(--utt-info);    color: #1e40af; }

/* Toast Notification */
.toast-container {
  position: fixed;
  top: calc(var(--topbar-height) + var(--space-4));
  right: var(--space-4);
  z-index: 1090;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}
.toast-item {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  background: var(--utt-surface);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--utt-border);
  font-size: var(--fs-sm);
  min-width: 320px;
  max-width: 450px;
  animation: toastSlideIn 0.35s ease-out;
}
.toast-item.toast-out { animation: toastSlideOut 0.25s ease-in forwards; }
.toast-item.toast-success { border-left: 4px solid var(--utt-success); }
.toast-item.toast-error   { border-left: 4px solid var(--utt-danger); }
.toast-item.toast-warning { border-left: 4px solid var(--utt-warning); }
.toast-item .toast-icon { font-size: 1.2rem; flex-shrink: 0; }
.toast-item.toast-success .toast-icon { color: var(--utt-success); }
.toast-item.toast-error .toast-icon   { color: var(--utt-danger); }
.toast-item.toast-warning .toast-icon { color: var(--utt-warning); }
.toast-item .toast-text { flex: 1; }
.toast-item .toast-close {
  background: none;
  border: none;
  color: var(--utt-text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}
.toast-item .toast-close:hover { opacity: 1; }

@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; }
}

/* ── Modals ── */
.modal-content {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}
.modal-header {
  border-bottom: 1px solid var(--utt-border-light);
  padding: var(--space-4) var(--space-5);
}
.modal-header .modal-title {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 700;
}
.modal-body { padding: var(--space-5); }
.modal-footer {
  border-top: 1px solid var(--utt-border-light);
  padding: var(--space-3) var(--space-5);
}

/* ── Progress bars ── */
.progress {
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--utt-bg);
  overflow: hidden;
}
.progress-bar {
  border-radius: var(--radius-full);
  transition: width 1s ease-out;
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ── Dropdown ── */
.dropdown-menu {
  border: 1px solid var(--utt-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  font-size: var(--fs-sm);
}
.dropdown-item {
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  font-weight: 500;
  transition: background var(--transition-fast);
}
.dropdown-item:hover {
  background: var(--utt-surface-active);
}

/* ── Navbar override for Bootstrap ── */
.app-layout .navbar { display: none !important; }

/* ── Full-screen login page ── */
.login-page {
  min-height: 100vh;
  display: flex;
  background: linear-gradient(135deg, var(--utt-primary-dark) 0%, var(--utt-primary) 40%, var(--utt-primary-light) 100%);
}
.login-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-8);
  color: var(--utt-text-inverse);
  position: relative;
  overflow: hidden;
}
.login-hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(249,115,22,0.08);
  top: -120px;
  right: -100px;
}
.login-hero::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  bottom: -80px;
  left: -60px;
}
.login-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 420px;
}
.login-hero-logo {
  width: 80px;
  height: 80px;
  margin-bottom: var(--space-6);
  filter: brightness(0) invert(1);
}
.login-hero h1 {
  font-size: var(--fs-3xl);
  color: #fff;
  margin-bottom: var(--space-3);
}
.login-hero p {
  color: rgba(255,255,255,0.7);
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
}

.login-form-panel {
  width: 480px;
  min-height: 100vh;
  background: var(--utt-surface);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-8);
  box-shadow: -10px 0 40px rgba(0,0,0,0.15);
}
.login-form-panel h2 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-6);
}

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes countUp {
  from { opacity: 0; transform: scale(0.5); }
  to   { opacity: 1; transform: scale(1); }
}

.animate-in {
  animation: fadeInUp 0.45s ease-out both;
}
.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }
.animate-in:nth-child(6) { animation-delay: 0.3s; }
.animate-in:nth-child(7) { animation-delay: 0.35s; }
.animate-in:nth-child(8) { animation-delay: 0.4s; }

.animate-fade {
  animation: fadeIn 0.4s ease-out both;
}

/* Counter animation */
.count-up {
  animation: countUp 0.5s ease-out both;
}

/* ── Timeline ── */
.timeline-item {
  position: relative;
  padding-left: 20px;
  transition: all var(--transition-base);
}
.timeline-item:hover {
  transform: translateX(3px);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--utt-success);
  border: 2px solid white;
  box-shadow: 0 0 0 2px var(--utt-success);
}

/* ── FullCalendar Overrides ── */
#calendar, #myBookingsCalendar {
  font-family: var(--font-body);
}
.fc-toolbar-title {
  font-family: var(--font-heading) !important;
  font-size: var(--fs-2xl) !important;
  font-weight: 700 !important;
  color: var(--utt-text) !important;
}
.fc-button {
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  font-size: var(--fs-sm) !important;
  border: 1px solid var(--utt-border) !important;
  background: var(--utt-surface) !important;
  color: var(--utt-text) !important;
  transition: all var(--transition-fast) !important;
}
.fc-button:hover {
  background: var(--utt-surface-active) !important;
}
.fc-button-primary:not(:disabled):active,
.fc-button-primary:not(:disabled).fc-button-active {
  background: var(--utt-primary) !important;
  border-color: var(--utt-primary) !important;
  color: #fff !important;
}
.fc-day-today {
  background-color: rgba(249,115,22,0.05) !important;
}
.fc-event {
  border-radius: var(--radius-sm);
  border: none;
  font-size: var(--fs-xs);
  padding: 2px 5px;
  cursor: pointer;
}
.fc-col-header-cell {
  background: var(--utt-bg);
  font-weight: 700;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: var(--space-2);
  border-bottom: 2px solid var(--utt-border);
}
.fc-daygrid-day { border-color: var(--utt-border-light); }
.fc-daygrid-day:hover { background: var(--utt-surface-hover); }
.fc-popover {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--utt-border);
}
.fc-popover-header {
  background: var(--utt-primary);
  color: #fff;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* ── Sidebar Overlay (mobile) ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1035;
  transition: opacity var(--transition-base);
}
.sidebar-overlay.active { display: block; }

/* ── List Group ── */
.list-group-item {
  border: none;
  border-bottom: 1px solid var(--utt-border-light);
  padding: var(--space-3) var(--space-4);
  transition: background var(--transition-fast);
}
.list-group-item:hover {
  background: var(--utt-surface-hover);
}
.list-group-item:last-child { border-bottom: none; }

/* ── Responsive ── */
@media (max-width: 1199.98px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  .app-sidebar.show {
    transform: translateX(0);
  }
  .app-main {
    margin-left: 0;
  }
  .topbar-toggle {
    display: flex;
  }
  .sidebar-overlay.active {
    display: block;
  }
}

@media (max-width: 991.98px) {
  .app-content {
    padding: var(--space-4);
  }
  .login-hero {
    display: none;
  }
  .login-form-panel {
    width: 100%;
    padding: var(--space-6);
  }
}

@media (max-width: 767.98px) {
  .app-content {
    padding: var(--space-3);
  }
  .stat-value {
    font-size: var(--fs-2xl);
  }
  .topbar-user-info {
    display: none;
  }
  .page-title {
    font-size: var(--fs-xl);
  }
  .login-form-panel {
    padding: var(--space-4);
  }
}

@media (max-width: 575.98px) {
  .app-content {
    padding: var(--space-2);
  }
  .card-body {
    padding: var(--space-3);
  }
  .table {
    font-size: var(--fs-xs);
  }
  .btn { font-size: var(--fs-xs); }
}

/* ── Utility classes ── */
.text-utt-primary { color: var(--utt-primary) !important; }
.text-utt-accent  { color: var(--utt-accent) !important; }
.text-utt-success { color: var(--utt-success) !important; }
.text-utt-warning { color: var(--utt-warning) !important; }
.text-utt-danger  { color: var(--utt-danger) !important; }
.text-utt-info    { color: var(--utt-info) !important; }
.text-utt-muted   { color: var(--utt-text-muted) !important; }

.bg-utt-primary { background-color: var(--utt-primary) !important; }
.bg-utt-accent  { background-color: var(--utt-accent) !important; }
.bg-utt-success { background-color: var(--utt-success) !important; }
.bg-utt-bg      { background-color: var(--utt-bg) !important; }

.fw-semibold { font-weight: 600; }
.font-heading { font-family: var(--font-heading); }
.radius-lg { border-radius: var(--radius-lg); }