/**
 * Booking.com-Level Design System
 * Global design system matching Booking.com quality
 * Max-width: 1180-1200px, light grey background, white cards
 */

:root {
  /* Colors - Booking.com palette */
  --booking-primary: #003580;
  --booking-primary-hover: #002654;
  --booking-primary-light: #0071c2;
  --booking-bg: #f0f2f5;
  --booking-card: #ffffff;
  --booking-border: #e2e6ea;
  --booking-text: #1a1d21;
  --booking-text-muted: #5c6370;
  --booking-success: #0d7d4d;
  --booking-success-bg: #e8f5ee;
  --booking-error: #b91c1c;
  --booking-error-bg: #fef2f2;
  --booking-warning: #b45309;
  --booking-warning-bg: #fffbeb;
  --booking-info: #0369a1;
  --booking-info-bg: #e0f2fe;
  
  /* Spacing - Compact, Booking.com density */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  
  /* Border radius */
  --radius: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Shadows - Subtle, hover only */
  --shadow: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.1);
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Layout */
  --max-width: 1200px;
  --max-width-content: 1180px;
}

/* Reset & Base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--booking-text);
  background: var(--booking-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Fixed Header - Booking.com style */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--booking-card);
  border-bottom: 1px solid var(--booking-border);
  box-shadow: var(--shadow);
  z-index: 1000;
  padding: 0;
}
body.admin-body .site-header {
  background: #2d3748;
  color: #fff;
}
body.admin-body .site-header .logo {
  color: #fff;
}
body.admin-body .site-header nav a {
  color: rgba(255,255,255,.9);
}
body.admin-body .site-header nav a:hover {
  color: #fff;
  background: rgba(255,255,255,.15);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-header .logo {
  color: var(--booking-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  transition: opacity 0.2s;
}
.site-header .logo:hover { opacity: 0.85; }
.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: center;
}
.site-header nav a {
  color: var(--booking-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
}
.site-header nav a:hover {
  color: var(--booking-primary);
  background: rgba(0,53,128,.06);
}
.site-header nav a.badge {
  background: #c00;
  color: #fff;
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.8rem;
}

/* Body Content - Centered, max-width 1180-1200px */
body { padding-top: 60px; } /* Space for fixed header */
main, .dashboard, .page-main, .booking-section, .booking-hero-inner,
.booking-search-card, .booking-footer-inner {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
main, .dashboard, .page-main {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

/* Cards - White, subtle border, 6-8px radius */
.card {
  background: var(--booking-card);
  border: 1px solid var(--booking-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: none;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--booking-primary-light);
}

/* Buttons - Consistent everywhere */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-decoration: none;
}
.btn-primary {
  background: var(--booking-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--booking-primary-hover);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: var(--booking-card);
  color: var(--booking-text);
  border: 1px solid var(--booking-border);
}
.btn-secondary:hover {
  background: var(--booking-bg);
  border-color: var(--booking-primary);
}

/* Typography - Clean, readable, compact */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--booking-text);
  line-height: 1.25;
  margin-bottom: var(--space-md);
}
h1 { font-size: 1.75rem; letter-spacing: -0.02em; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }
.muted { color: var(--booking-text-muted); font-size: 0.9375rem; }

/* Forms - Consistent input styling */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="search"],
select,
textarea {
  width: 100%;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--booking-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-sans);
  background: #fafafa;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--booking-primary);
  box-shadow: 0 0 0 3px rgba(0,53,128,.12);
  background: var(--booking-card);
}

/* Alerts */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius);
  margin-bottom: var(--space-md);
  font-size: 0.9375rem;
  line-height: 1.5;
  border: 1px solid transparent;
}
.alert-success {
  background: var(--booking-success-bg);
  color: var(--booking-success);
  border-color: rgba(13,125,77,.2);
}
.alert-error {
  background: var(--booking-error-bg);
  color: var(--booking-error);
  border-color: rgba(185,28,28,.2);
}
.alert-info {
  background: var(--booking-info-bg);
  color: var(--booking-info);
  border-color: rgba(3,105,161,.2);
}

/* Tables - Compact, sticky headers, hover rows */
.table-wrap {
  overflow-x: auto;
  background: var(--booking-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--booking-border);
  box-shadow: var(--shadow);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
table th {
  background: var(--booking-bg);
  font-weight: 600;
  color: var(--booking-text-muted);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.75rem 1rem;
  text-align: left;
  position: sticky;
  top: 0;
  z-index: 10;
}
table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--booking-border);
}
table tbody tr {
  transition: background 0.15s;
}
table tbody tr:hover {
  background: var(--booking-bg);
}
table tbody tr:last-child td {
  border-bottom: none;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: capitalize;
}
.badge-pending { background: var(--booking-warning-bg); color: var(--booking-warning); }
.badge-confirmed { background: var(--booking-success-bg); color: var(--booking-success); }
.badge-cancelled { background: var(--booking-error-bg); color: var(--booking-error); }
.badge-approved { background: var(--booking-success-bg); color: var(--booking-success); }
.badge-rejected { background: var(--booking-error-bg); color: var(--booking-error); }

/* Autocomplete Dropdown - AJAX powered */
.autocomplete-wrapper {
  position: relative;
}
.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--booking-card);
  border: 1px solid var(--booking-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-height: 300px;
  overflow-y: auto;
  z-index: 1000;
  margin-top: 2px;
}
.autocomplete-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background 0.15s;
  border-bottom: 1px solid var(--booking-border);
}
.autocomplete-item:last-child {
  border-bottom: none;
}
.autocomplete-item:hover,
.autocomplete-item.active {
  background: var(--booking-bg);
  color: var(--booking-primary);
}
.autocomplete-item strong {
  font-weight: 600;
}

/* Date Picker - AJAX powered */
.date-picker-wrapper {
  position: relative;
}
.date-picker-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--booking-card);
  border: 1px solid var(--booking-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md);
  z-index: 1000;
  margin-top: 2px;
  min-width: 300px;
}

/* Pagination - AJAX */
.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding: var(--space-md) 0;
  font-size: 0.9rem;
}
.pagination a {
  color: var(--booking-primary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: background 0.15s;
}
.pagination a:hover {
  background: var(--booking-bg);
  text-decoration: none;
}
.pagination .active {
  background: var(--booking-primary);
  color: #fff;
}
.pagination-info {
  color: var(--booking-text-muted);
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}
.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--booking-primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Modals - Consistent style */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}
.modal {
  background: var(--booking-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-xl);
}

/* Admin Sidebar */
.admin-layout {
  display: flex;
  min-height: calc(100vh - 60px);
  margin-top: 60px;
}
.admin-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--booking-card);
  border-right: 1px solid var(--booking-border);
  padding: var(--space-lg);
  position: fixed;
  left: 0;
  top: 60px;
  bottom: 0;
  overflow-y: auto;
}
.admin-sidebar-nav {
  list-style: none;
}
.admin-sidebar-nav li {
  margin-bottom: var(--space-xs);
}
.admin-sidebar-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6rem 0.75rem;
  color: var(--booking-text);
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: background 0.15s, color 0.15s;
}
.admin-sidebar-nav a:hover {
  background: var(--booking-bg);
  color: var(--booking-primary);
}
.admin-sidebar-nav a.active {
  background: rgba(0,53,128,.08);
  color: var(--booking-primary);
  font-weight: 600;
}
.admin-content {
  flex: 1;
  margin-left: 260px;
  padding: var(--space-xl);
  max-width: calc(var(--max-width-content) - 260px);
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
  .admin-layout {
    flex-direction: column;
  }
  .admin-sidebar {
    position: relative;
    width: 100%;
    top: 0;
  }
  .admin-content {
    margin-left: 0;
  }
  main, .dashboard, .page-main {
    padding: var(--space-lg) var(--space-md);
  }
}

/* Utilities */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }