/* ============================================================
   InRoom Hotel Service - Design System
   White & Blue Theme, Modern & Premium
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================================
   CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
  /* Brand Colors */
  --primary-50:  #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  --sky-400: #38bdf8;
  --sky-500: #0ea5e9;
  --sky-600: #0284c7;

  /* Semantic Colors */
  --color-primary:   var(--sky-500);
  --color-primary-dark: var(--sky-600);
  --color-accent:    var(--primary-600);

  /* Status Colors */
  --status-pending:     #f59e0b;
  --status-accepted:    #3b82f6;
  --status-progress:    #8b5cf6;
  --status-completed:   #10b981;
  --status-cancelled:   #ef4444;

  /* Neutral */
  --gray-50:  #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Typography */
  --font-sans: 'Sarabun', 'Inter', sans-serif;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   1.25rem;
  --font-size-2xl:  1.5rem;
  --font-size-3xl:  1.875rem;

  /* 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;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 64px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  --border-radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow:    0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12), 0 6px 16px rgba(0,0,0,0.08);
  --shadow-primary: 0 8px 24px rgba(14,165,233,0.30);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  color: var(--gray-800);
  background: var(--gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
ul { list-style: none; }

/* ============================================================
   Layout - Admin/Staff Shell
   ============================================================ */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, #0c1e3c 0%, #0f2a52 60%, #0c2244 100%);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  transition: transform var(--transition-base);
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.sidebar-brand {
  padding: var(--space-6) var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar-brand-icon {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--sky-400), var(--primary-600));
  border-radius: var(--border-radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  color: white;
  flex-shrink: 0;
  box-shadow: var(--shadow-primary);
}

.sidebar-brand-text h1 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: white;
  line-height: 1.2;
}

.sidebar-brand-text span {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.5);
  font-weight: 400;
}

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

.nav-section-label {
  padding: var(--space-3) var(--space-5) var(--space-2);
  font-size: 0.65rem;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  color: rgba(255,255,255,0.65);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
  margin: 2px var(--space-3);
  border-radius: var(--border-radius-sm);
  position: relative;
}

.nav-item:hover {
  color: white;
  background: rgba(255,255,255,0.08);
}

.nav-item.active {
  color: white;
  background: linear-gradient(135deg, rgba(14,165,233,0.25), rgba(37,99,235,0.15));
  border-left-color: var(--sky-400);
}

.nav-item i {
  width: 18px;
  text-align: center;
  font-size: 0.95rem;
}

.nav-badge {
  margin-left: auto;
  background: var(--status-pending);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--border-radius-full);
  min-width: 20px;
  text-align: center;
}

.sidebar-user {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.user-avatar {
  width: 36px; height: 36px;
  border-radius: var(--border-radius-full);
  background: linear-gradient(135deg, var(--sky-400), var(--primary-600));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  color: white;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-info .name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: white;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-info .role {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.45);
}

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

/* Topbar */
.topbar {
  height: var(--header-height);
  background: white;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  gap: var(--space-4);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.topbar-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--gray-800);
  flex: 1;
}

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

.btn-icon {
  width: 38px; height: 38px;
  border: none;
  background: var(--gray-100);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-600);
  transition: all var(--transition-fast);
  position: relative;
}

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

.notif-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 8px; height: 8px;
  background: var(--status-pending);
  border-radius: 50%;
  border: 2px solid white;
}

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

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

.card-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.card-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-title i {
  color: var(--color-primary);
}

.card-body { padding: var(--space-5) var(--space-6); }

/* ============================================================
   Stat Cards (Dashboard)
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.stat-card {
  background: white;
  border-radius: var(--border-radius);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}

.stat-card.blue::before  { background: linear-gradient(90deg, var(--sky-400), var(--primary-600)); }
.stat-card.amber::before { background: linear-gradient(90deg, #f59e0b, #f97316); }
.stat-card.violet::before{ background: linear-gradient(90deg, #8b5cf6, #ec4899); }
.stat-card.green::before { background: linear-gradient(90deg, #10b981, #0d9488); }

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

.stat-icon {
  width: 52px; height: 52px;
  border-radius: var(--border-radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.stat-icon.blue   { background: var(--primary-50); color: var(--sky-500); }
.stat-icon.amber  { background: #fffbeb; color: #f59e0b; }
.stat-icon.violet { background: #f5f3ff; color: #8b5cf6; }
.stat-icon.green  { background: #ecfdf5; color: #10b981; }

.stat-info {}
.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  font-weight: 400;
  margin-top: 2px;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--sky-500), var(--primary-600));
  color: white;
  box-shadow: 0 4px 12px rgba(14,165,233,0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--sky-600), var(--primary-700));
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(14,165,233,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

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

.btn-danger {
  background: #ef4444;
  color: white;
}
.btn-danger:hover { background: #dc2626; }

.btn-success {
  background: #10b981;
  color: white;
}
.btn-success:hover { background: #059669; }

.btn-warning {
  background: #f59e0b;
  color: white;
}
.btn-warning:hover { background: #d97706; }

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--border-radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.badge-pending   { background: #fffbeb; color: #92400e; border: 1px solid #fcd34d; }
.badge-accepted  { background: #eff6ff; color: #1d4ed8; border: 1px solid #93c5fd; }
.badge-progress  { background: #f5f3ff; color: #5b21b6; border: 1px solid #c4b5fd; }
.badge-completed { background: #ecfdf5; color: #065f46; border: 1px solid #6ee7b7; }
.badge-cancelled { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }
.badge-low    { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.badge-normal { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }
.badge-high   { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }
.badge-secondary { background: var(--gray-100); color: var(--gray-600); border: 1px solid var(--gray-200); }

/* ============================================================
   Forms
   ============================================================ */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--space-2);
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  color: var(--gray-800);
  background: white;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.15);
}

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

select.form-control { cursor: pointer; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* ============================================================
   Table
   ============================================================ */
.table-container {
  overflow-x: auto;
}

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

.table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}

.table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--gray-100);
  font-size: var(--font-size-sm);
  color: var(--gray-700);
  vertical-align: middle;
}

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

.table tr:hover td {
  background: var(--gray-50);
}

.table-actions { display: flex; gap: var(--space-2); }

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fadeIn var(--transition-fast);
}

.modal {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp var(--transition-base);
}

.modal-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--gray-900);
}

.modal-close {
  width: 32px; height: 32px;
  border: none;
  background: var(--gray-100);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-500);
  transition: all var(--transition-fast);
}

.modal-close:hover { background: var(--gray-200); color: var(--gray-800); }

.modal-body { padding: var(--space-6); }

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--gray-100);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 300px;
  border-left: 4px solid;
  animation: toastIn var(--transition-base) forwards;
}

.toast.success { border-left-color: #10b981; }
.toast.error   { border-left-color: #ef4444; }
.toast.warning { border-left-color: #f59e0b; }
.toast.info    { border-left-color: var(--sky-500); }

.toast-icon {
  width: 32px; height: 32px;
  border-radius: var(--border-radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.toast.success .toast-icon { background: #ecfdf5; color: #10b981; }
.toast.error   .toast-icon { background: #fef2f2; color: #ef4444; }
.toast.warning .toast-icon { background: #fffbeb; color: #f59e0b; }
.toast.info    .toast-icon { background: var(--primary-50); color: var(--sky-500); }

.toast-msg {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-800);
  flex: 1;
}

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

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.6; }
}

/* ============================================================
   Utility Classes
   ============================================================ */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.flex-1 { flex: 1; }

.text-sm    { font-size: var(--font-size-sm); }
.text-xs    { font-size: var(--font-size-xs); }
.text-muted { color: var(--gray-500); }
.text-primary { color: var(--color-primary); }
.font-bold  { font-weight: 700; }
.font-semibold { font-weight: 600; }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mt-4 { margin-top: var(--space-4); }

.text-center { text-align: center; }
.w-100  { width: 100%; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
  color: var(--gray-400);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  display: block;
}

.empty-state p { font-size: var(--font-size-sm); }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--gray-100);
  justify-content: center;
}

.page-btn {
  width: 34px; height: 34px;
  border: 1.5px solid var(--gray-200);
  background: white;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  transition: all var(--transition-fast);
}

.page-btn:hover, .page-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ============================================================
   Login Page Specific
   ============================================================ */
.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0c1e3c 0%, #0f2a52 50%, #0c3461 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(14,165,233,0.15) 0%, transparent 70%);
  top: -200px; right: -200px;
  pointer-events: none;
}

.login-page::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%);
  bottom: -100px; left: -100px;
  pointer-events: none;
}

.login-card {
  background: rgba(255,255,255,0.97);
  border-radius: var(--border-radius-xl);
  padding: var(--space-10);
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
  animation: slideUp var(--transition-slow);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--space-8);
}

.login-logo-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--sky-400), var(--primary-700));
  border-radius: var(--border-radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  color: white;
  margin: 0 auto var(--space-4);
  box-shadow: var(--shadow-primary);
}

.login-logo h1 {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--gray-900);
  background: linear-gradient(135deg, var(--sky-500), var(--primary-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-logo p {
  color: var(--gray-500);
  font-size: var(--font-size-sm);
  margin-top: var(--space-1);
}

.login-form .form-control {
  padding-left: var(--space-10);
}

.input-wrapper {
  position: relative;
}

.input-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  font-size: 0.95rem;
}

.btn-login {
  width: 100%;
  padding: var(--space-4);
  background: linear-gradient(135deg, var(--sky-500), var(--primary-700));
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-primary);
  letter-spacing: 0.02em;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(14,165,233,0.45);
}

.login-divider {
  text-align: center;
  margin: var(--space-6) 0;
  position: relative;
}

.login-divider::before {
  content: '';
  position: absolute;
  top: 50%; left: 0; right: 0;
  height: 1px;
  background: var(--gray-200);
}

.login-divider span {
  background: white;
  padding: 0 var(--space-3);
  color: var(--gray-400);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: relative;
}

.guest-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--border-radius);
  color: var(--gray-600);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: white;
  text-decoration: none;
}

.guest-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--primary-50);
}

/* ============================================================
   Guest (Mobile) Page
   ============================================================ */
.guest-page {
  min-height: 100vh;
  background: linear-gradient(180deg, #0c1e3c 0%, #0f2a52 30%, var(--gray-50) 30%);
}

.guest-header {
  padding: var(--space-8) var(--space-6) var(--space-10);
  text-align: center;
  color: white;
}

.guest-header .hotel-name {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.65);
  margin-bottom: var(--space-2);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.guest-header .room-number {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.guest-header .welcome {
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-sm);
}

.guest-categories {
  padding: 0 var(--space-4);
  margin-top: -2rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cat-card {
  background: white;
  border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid var(--gray-100);
  text-decoration: none;
  color: inherit;
}

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

.cat-icon {
  width: 56px; height: 56px;
  border-radius: var(--border-radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.cat-info h3 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--gray-800);
}

.cat-info p {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  margin-top: 2px;
}

.cat-arrow {
  margin-left: auto;
  color: var(--gray-300);
  font-size: 1.1rem;
}

/* ============================================================
   Status Tracker (Guest)
   ============================================================ */
.status-tracker {
  padding: var(--space-6) var(--space-4);
  max-width: 480px;
  margin: 0 auto;
}

.tracker-steps {
  position: relative;
  padding: var(--space-4) 0;
}

.tracker-line {
  position: absolute;
  left: 20px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--gray-200);
}

.tracker-step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  position: relative;
}

.step-dot {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  border: 3px solid white;
  box-shadow: 0 0 0 2px var(--gray-200);
}

.step-dot.done    { background: var(--status-completed); color: white; box-shadow: 0 0 0 2px var(--status-completed); }
.step-dot.active  { background: var(--sky-500); color: white; box-shadow: 0 0 0 2px var(--sky-500), 0 0 0 5px rgba(14,165,233,0.2); animation: pulse 1.5s infinite; }
.step-dot.waiting { background: var(--gray-200); color: var(--gray-400); }

.step-content {}
.step-title { font-weight: 700; font-size: var(--font-size-sm); color: var(--gray-700); }
.step-content.active .step-title { color: var(--sky-600); }
.step-time { font-size: var(--font-size-xs); color: var(--gray-400); margin-top: 2px; }

/* ============================================================
   QR Code Page (Manager)
   ============================================================ */
.qr-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-5);
}

.qr-card {
  background: white;
  border-radius: var(--border-radius);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  text-align: center;
  transition: all var(--transition-base);
}

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

.qr-room-no {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}

.qr-type {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  margin-bottom: var(--space-4);
}

.qr-code-img {
  width: 120px; height: 120px;
  margin: 0 auto var(--space-4);
  background: var(--gray-100);
  border-radius: var(--border-radius-sm);
  display: flex; align-items: center; justify-content: center;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-content {
    padding: var(--space-4);
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .login-card {
    padding: var(--space-8) var(--space-6);
  }
}