:root {
  --app-bg: #f5f7fb;
  --app-surface: #ffffff;
  --app-primary: #0f4c81;
  --app-primary-600: #0b3a63;
  --app-secondary: #19a974;
  --app-accent: #ffb703;
  --app-text: #1f2937;
  --app-muted: #6b7280;
  --app-border: #e5e7eb;
  --app-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  margin-bottom: 60px;
  background: var(--app-bg);
  color: var(--app-text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

a {
  color: var(--app-primary);
}

a:hover {
  color: var(--app-primary-600);
}

.navbar {
  background: var(--app-surface) !important;
  border-bottom: 1px solid var(--app-border);
}

.navbar .navbar-brand {
  font-weight: 600;
  color: var(--app-primary);
}

.navbar .nav-link {
  color: var(--app-muted) !important;
}

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

.container {
  max-width: 1200px;
}

.card {
  border: none;
  border-radius: 16px;
  box-shadow: var(--app-shadow);
}

.card .card-body {
  padding: 24px;
}

.table {
  margin-bottom: 0;
}

.table thead th {
  background: #f9fafb;
  color: var(--app-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--app-border);
}

.table td,
.table th {
  border-top: 1px solid var(--app-border);
}

.btn-primary {
  background: var(--app-primary);
  border-color: var(--app-primary);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--app-primary-600);
  border-color: var(--app-primary-600);
}

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

.btn-outline-primary:hover {
  background: var(--app-primary);
  color: #ffffff;
}

.btn-outline-secondary {
  color: var(--app-muted);
  border-color: var(--app-border);
}

.btn-danger {
  background: #dc3545;
  border-color: #dc3545;
}

.form-control,
.form-select {
  border-radius: 10px;
  border: 1px solid var(--app-border);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 0.2rem rgba(15, 76, 129, 0.2);
}

.alert-success {
  background: rgba(25, 169, 116, 0.12);
  border-color: rgba(25, 169, 116, 0.25);
  color: #0f5132;
}

.badge {
  border-radius: 999px;
  padding: 0.35em 0.8em;
}

footer.footer {
  background: var(--app-surface);
  border-top: 1px solid var(--app-border);
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border-radius: 8px;
  border: 1px solid var(--app-border);
  padding: 6px 10px;
}

.dataTables_wrapper .dt-buttons .btn {
  margin-right: 6px;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.1rem #ffffff, 0 0 0 0.25rem rgba(15, 76, 129, 0.35);
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
  color: var(--app-muted);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
  text-align: start;
}