:root {
  --xvia-blue: #0066FF;
  --xvia-blue-dark: #001A4D;
  --xvia-cyan: #00C3FF;
  --xvia-bg: #F4F7FB;
  --xvia-surface: #FFFFFF;
  --xvia-text: #1A2338;
  --xvia-muted: #6B7A99;
  --xvia-border: #E2E8F0;
  --xvia-gradient: linear-gradient(135deg, #0066FF 0%, #00C3FF 100%);
  --xvia-shadow: 0 4px 20px rgba(0, 102, 255, 0.08);
  --xvia-radius: 16px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  background: var(--xvia-bg);
  color: var(--xvia-text);
  -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar-xvia {
  background: var(--xvia-surface);
  border-bottom: 1px solid var(--xvia-border);
  box-shadow: var(--xvia-shadow);
  padding: 0;
  min-height: 76px;
  align-items: center;
}

.navbar-xvia .container {
  padding-top: 0;
  padding-bottom: 0;
  min-height: 76px;
}

.navbar-xvia .navbar-brand {
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  height: 76px;
  line-height: 1;
}

.navbar-xvia .navbar-brand img {
  height: 60px;
  width: auto;
  display: block;
}

.navbar-xvia .navbar-collapse {
  align-items: center;
}

.navbar-xvia .navbar-nav {
  align-items: center;
}

.navbar-xvia .nav-link {
  color: var(--xvia-muted);
  font-weight: 500;
  font-size: 13px;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.navbar-xvia .nav-link:hover,
.navbar-xvia .nav-link.active {
  color: var(--xvia-blue);
  background: rgba(0, 102, 255, 0.06);
}

.navbar-xvia .navbar-toggler {
  border-color: var(--xvia-border);
}

/* User menu */
.navbar-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: 1rem;
  padding-left: 1rem;
  border-left: 1px solid var(--xvia-border);
}

.navbar-user .username {
  font-weight: 600;
  color: var(--xvia-text);
  font-size: 13px;
}

.navbar-user .role-badge {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(0, 102, 255, 0.1);
  color: var(--xvia-blue);
  font-weight: 700;
}

/* Cards */
.card {
  background: var(--xvia-surface);
  border: 1px solid var(--xvia-border);
  border-radius: var(--xvia-radius);
  box-shadow: var(--xvia-shadow);
}

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--xvia-border);
  font-weight: 700;
  font-size: 14px;
  color: var(--xvia-blue-dark);
  padding: 1rem 1.25rem;
}

.card-body {
  padding: 1.25rem;
}

/* KPI cards */
.kpi-card {
  border-left: 4px solid var(--xvia-blue);
  transition: transform 0.2s ease;
}

.kpi-card:hover {
  transform: translateY(-2px);
}

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  margin: 0;
  background: var(--xvia-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.kpi-label {
  color: var(--xvia-muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Buttons */
.btn {
  border-radius: 10px;
  font-weight: 600;
  font-size: 13px;
  padding: 0.55rem 1.1rem;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--xvia-gradient);
  border: none;
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 102, 255, 0.35);
}

.btn-outline-primary {
  color: var(--xvia-blue);
  border-color: var(--xvia-blue);
}

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

/* Tables */
.table {
  border-radius: 12px;
  overflow: hidden;
}

.table thead th {
  background: var(--xvia-blue-dark);
  color: #fff;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
}

.table td,
.table th {
  vertical-align: middle;
  border-color: var(--xvia-border);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
  background: rgba(0, 102, 255, 0.02);
}

/* Forms */
.form-control,
.form-select {
  border: 1px solid var(--xvia-border);
  border-radius: 10px;
  font-size: 13px;
  padding: 0.55rem 0.9rem;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--xvia-blue);
  box-shadow: 0 0 0 0.2rem rgba(0, 102, 255, 0.12);
}

/* Badges */
.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 0.4em 0.7em;
  border-radius: 6px;
}

/* Page header */
.page-header {
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-weight: 800;
  font-size: 1.75rem;
  color: var(--xvia-blue-dark);
  margin: 0;
}

.page-header p {
  color: var(--xvia-muted);
  margin: 0.25rem 0 0;
}

/* Calendar */
.calendar-grid { width: 100%; }
.cal-row { display: flex; }
.cal-header {
  flex: 1;
  text-align: center;
  font-weight: 700;
  font-size: 11px;
  padding: 6px 0;
  color: var(--xvia-muted);
  text-transform: uppercase;
}
.cal-cell {
  flex: 1;
  text-align: center;
  padding: 6px 0;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  margin: 2px;
  min-height: 30px;
  line-height: 30px;
  background: var(--xvia-bg);
}
.cal-cell.empty { background: transparent; }
.cal-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  vertical-align: middle;
}

/* Toast */
#toast-container { z-index: 9999; }

/* DataTables override */
.dataTables_wrapper .dataTables_filter { display: none; }

pre {
  background: var(--xvia-bg);
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--xvia-border);
}

/* Footer */
.xvia-footer {
  margin-top: 3rem;
  padding: 2rem 0;
  border-top: 1px solid var(--xvia-border);
  color: var(--xvia-muted);
  font-size: 12px;
  text-align: center;
}