:root {
  --primary: #1A3A6B;        /* Dark navy blue — main brand color */
  --primary-light: #EEF2FF;  /* Very light blue/indigo tint — backgrounds */
  --primary-dark: #0F2347;   /* Deeper navy — hover states, dark elements */
  --accent: #3B6FD4;         /* Bright blue — buttons, links, highlights */
  --accent-light: #6B9FE8;   /* Lighter blue — secondary accents */
  --bg: #F8F9FC;             /* Off-white with slight blue tint — page background */
  --surface: #FFFFFF;        /* Pure white — cards, panels */
  --border: #D1D9E8;         /* Blue-tinted border */
  --text: #1A2340;           /* Very dark navy — body text */
  --text-muted: #5A6A8A;     /* Muted blue-gray — secondary text */
  --danger: #DC2626;         /* Red — errors, deny */
  --warning: #D97706;        /* Amber — pending, warnings */
  --success: #059669;        /* Green — approved */
  --charcoal: #2C2C2C;       /* Dark charcoal — matches logo circle */
}

* {
  box-sizing: border-box;
}

/* ---------- Base ---------- */
body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* ---------- Navbar ---------- */
.navbar {
  background-color: var(--surface) !important;
  border-bottom: 3px solid var(--primary);
  box-shadow: 0 2px 8px rgba(26, 58, 107, 0.08);
  padding: 0.5rem 1.5rem;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary) !important;
  text-decoration: none;
}

.navbar-brand img.nav-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.navbar-brand .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.navbar-brand .brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
}

.navbar-brand .brand-sub {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.navbar .nav-link {
  color: var(--text) !important;
  font-size: 0.9rem;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: background 0.15s;
}

.navbar .nav-link:hover {
  background-color: var(--primary-light);
  color: var(--primary) !important;
}

.navbar .nav-link.logout-link {
  color: var(--danger) !important;
}

.nav-profile-pic {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
}

/* ---------- Role Badge ---------- */
.badge-role {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-role.admin {
  background-color: var(--primary);
  color: #fff;
}

.badge-role.employee {
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--border);
}

/* ---------- Buttons ---------- */
.btn-primary {
  background-color: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #fff !important;
  font-weight: 500;
  border-radius: 6px;
  padding: 0.45rem 1.1rem;
  transition: background 0.15s, box-shadow 0.15s;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
  box-shadow: 0 2px 8px rgba(26, 58, 107, 0.2);
}

.btn-outline-primary {
  color: var(--accent) !important;
  border-color: var(--accent) !important;
}

.btn-outline-primary:hover {
  background-color: var(--accent) !important;
  color: #fff !important;
}

/* ---------- Cards ---------- */
.card {
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(26, 58, 107, 0.07);
  background: var(--surface);
}

.card-header {
  background-color: var(--primary-light);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  color: var(--primary);
  border-radius: 10px 10px 0 0 !important;
  padding: 0.85rem 1.25rem;
}

.stat-card {
  border-left: 4px solid var(--accent);
  padding: 1.2rem 1.5rem;
  border-radius: 10px;
  background: var(--surface);
  box-shadow: 0 1px 4px rgba(26, 58, 107, 0.07);
}

.stat-card .stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Tables ---------- */
.table {
  color: var(--text);
}

.table thead th {
  background-color: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: none;
  padding: 0.85rem 1rem;
}

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

.table td {
  vertical-align: middle;
  padding: 0.75rem 1rem;
  border-color: var(--border);
}

/* ---------- Status Badges ---------- */
.status-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.status-badge.pending  { background: #FEF3C7; color: #92400E; }
.status-badge.approved { background: #D1FAE5; color: #065F46; }
.status-badge.denied   { background: #FEE2E2; color: #991B1B; }
.status-badge.cancelled{ background: #F3F4F6; color: #374151; }

/* ---------- Hero Section (Landing Page) ---------- */
.hero-section {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--accent) 100%);
  text-align: center;
  padding: 3rem 1.5rem;
}

.hero-section .hero-logo {
  width: 120px;
  height: auto;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.3));
}

.hero-section h1 {
  color: #ffffff;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.hero-section p.subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.btn-login-google {
  background: #ffffff;
  color: var(--primary) !important;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.7rem 2rem;
  border-radius: 8px;
  border: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

.btn-login-google:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  color: var(--primary-dark) !important;
}

.btn-login-google img.google-icon {
  width: 22px;
  height: 22px;
}

/* ---------- Page Headers ---------- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-light);
}

.page-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0;
}

/* ---------- Forms ---------- */
.form-label {
  font-weight: 500;
  color: var(--text);
  font-size: 0.9rem;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 111, 212, 0.15);
}

.form-control, .form-select {
  border-color: var(--border);
  color: var(--text);
  border-radius: 6px;
}

/* ---------- Employee Tag Chips (Traveler Search) ---------- */
.employee-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.85rem;
  font-weight: 500;
  margin: 3px;
}

.employee-tag .remove-btn {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  line-height: 1;
  opacity: 0.6;
}

.employee-tag .remove-btn:hover {
  opacity: 1;
  color: var(--danger);
}

/* ---------- Travel Flag Warning ---------- */
.travel-flag-badge {
  color: var(--warning);
  font-size: 1rem;
  cursor: help;
}

.alert-travel-flag {
  background-color: #FFFBEB;
  border-left: 4px solid var(--warning);
  border-radius: 6px;
  padding: 0.85rem 1.1rem;
  color: #92400E;
  font-size: 0.9rem;
}

/* ---------- Search Dropdown (Employee Search) ---------- */
.employee-search-dropdown {
  position: absolute;
  z-index: 1000;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(26, 58, 107, 0.12);
  max-height: 220px;
  overflow-y: auto;
  width: 100%;
}

.employee-search-dropdown .dropdown-item {
  padding: 0.6rem 1rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text);
}

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

/* ---------- Pagination ---------- */
.page-link {
  color: var(--accent);
  border-color: var(--border);
}

.page-item.active .page-link {
  background-color: var(--primary);
  border-color: var(--primary);
}

.page-link:hover {
  background-color: var(--primary-light);
  color: var(--primary);
}

/* ---------- Misc ---------- */
.content-wrapper {
  padding: 2rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

hr.section-divider {
  border-color: var(--border);
  margin: 1.5rem 0;
}

.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

.empty-state i {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--border);
}

/* ---------- Compatibility (existing markup not converted to a spec class) ---------- */
.flash-container {
  margin-top: 1rem;
}

.navbar-username {
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
}

.page-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0;
}

.filter-tabs .nav-link {
  color: var(--accent);
}

.filter-tabs .nav-link.active {
  background-color: var(--primary);
  color: #fff;
}

.logo-preview {
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
}