/**
 * Faculty workspace — layout + components (Bootstrap 5 additive layer).
 */
:root {
  --fac-accent: #0d9488;
  --fac-accent-deep: #0f766e;
  --fac-accent-soft: rgba(13, 148, 136, 0.12);
  --fac-surface: #f8fafc;
  --fac-ink: #0f172a;
  --fac-muted: #64748b;
  --fac-sidebar-bg: #0f172a;
  --fac-sidebar-border: rgba(148, 163, 184, 0.15);
  --fac-card-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.04);
}

.faculty-panel-body .fac-shell {
  display: flex;
  min-height: calc(100vh - 72px);
  margin-left: calc(-0.5 * var(--bs-gutter-x, 1rem));
  margin-right: calc(-0.5 * var(--bs-gutter-x, 1rem));
}

@media (min-width: 992px) {
  .faculty-panel-body .fac-shell {
    margin-left: calc(-1 * var(--bs-gutter-x, 1.5rem));
    margin-right: calc(-1 * var(--bs-gutter-x, 1.5rem));
  }
}

.faculty-panel-body .fac-sidebar-offcanvas.offcanvas-lg {
  width: min(280px, 100vw);
  background: var(--fac-sidebar-bg);
  border-right: 1px solid var(--fac-sidebar-border);
  color: #cbd5e1;
}

.faculty-panel-body .fac-sidebar-offcanvas .fac-brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--fac-accent), #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
}

.faculty-panel-body .fac-nav-section-label {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: #64748b;
  padding: 0.75rem 1rem 0.25rem;
  text-transform: uppercase;
  font-weight: 600;
}

.faculty-panel-body .fac-sidebar-offcanvas .nav-link {
  color: #94a3b8;
  padding: 0.55rem 1rem;
  margin: 0.12rem 0.5rem;
  border-radius: 10px;
  font-size: 0.875rem;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  text-decoration: none;
  border-left: 3px solid transparent;
}

.faculty-panel-body .fac-sidebar-offcanvas .nav-link:hover {
  color: #fff;
  background: rgba(148, 163, 184, 0.12);
}

.faculty-panel-body .fac-sidebar-offcanvas .nav-link.active {
  color: #fff;
  background: rgba(13, 148, 136, 0.22);
  border-left-color: var(--fac-accent);
}

.faculty-panel-body .fac-sidebar-offcanvas .nav-link .bi {
  opacity: 0.9;
  font-size: 1.05rem;
}

.faculty-panel-body .fac-main {
  flex: 1;
  background: var(--fac-surface);
  min-width: 0;
}

.faculty-panel-body .fac-top {
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
  padding: 0.65rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.65rem;
  align-items: center;
  position: sticky;
  top: 56px;
  z-index: 1019;
}

.faculty-panel-body .fac-inner {
  padding: 1.25rem 1.5rem 2.25rem;
}

.faculty-panel-body .fac-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 1.5rem 1.65rem;
  box-shadow: var(--fac-card-shadow);
}

.faculty-panel-body .fac-page-head {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #f1f5f9;
}

.faculty-panel-body .fac-page-head h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--fac-ink);
  letter-spacing: -0.02em;
}

.faculty-panel-body .fac-page-head .fac-lead {
  color: var(--fac-muted);
  font-size: 0.9rem;
  max-width: 52rem;
  margin-bottom: 0;
}

.faculty-panel-body .fac-breadcrumb .breadcrumb {
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
}

.faculty-panel-body .fac-stat-card {
  border-radius: 14px;
  padding: 1.15rem 1.25rem;
  height: 100%;
  border: 1px solid #e2e8f0;
  background: #fff;
  position: relative;
  overflow: hidden;
}

.faculty-panel-body .fac-stat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--fac-accent), #3b82f6);
  opacity: 0.85;
}

.faculty-panel-body .fac-stat-card.fac-stat-accent::before {
  background: linear-gradient(90deg, var(--fac-accent-deep), var(--fac-accent));
}

.faculty-panel-body .fac-stat-card.fac-stat-success::before {
  background: linear-gradient(90deg, #059669, #10b981);
}

.faculty-panel-body .fac-stat-card.fac-stat-muted::before {
  background: linear-gradient(90deg, #475569, #94a3b8);
}

.faculty-panel-body .fac-stat-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fac-muted);
  font-weight: 600;
}

.faculty-panel-body .fac-stat-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--fac-ink);
  letter-spacing: -0.03em;
}

.faculty-panel-body .fac-stat-hint {
  font-size: 0.78rem;
  color: #94a3b8;
  margin-top: 0.35rem;
}

.faculty-panel-body .fac-section-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 700;
  color: var(--fac-muted);
  margin-bottom: 0.75rem;
}

.faculty-panel-body .fac-table-shell {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}

.faculty-panel-body .fac-table-shell .table {
  margin-bottom: 0;
}

.faculty-panel-body .fac-table-shell thead th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fac-muted);
  font-weight: 600;
  border-bottom-width: 1px;
}

.faculty-panel-body .fac-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--fac-muted);
}

.faculty-panel-body .fac-empty .bi {
  font-size: 2.25rem;
  opacity: 0.35;
  display: block;
  margin-bottom: 0.5rem;
}

.faculty-panel-body .fac-panel-subtle {
  background: linear-gradient(180deg, #f8fafc 0%, #fff 40%);
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 1rem 1.15rem;
}

.faculty-panel-body .fac-quick-actions .btn {
  border-radius: 10px;
}

.faculty-panel-body .fac-notice-card {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 1rem 1.15rem;
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.faculty-panel-body .fac-notice-card:hover {
  border-color: rgba(13, 148, 136, 0.35);
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.08);
}

/* Login screen */
body.faculty-login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(145deg, #0f172a 0%, #134e4a 48%, #0f172a 100%);
  padding-top: 72px !important;
}

body.faculty-login-body main.container {
  width: 100%;
}

.fac-login-card {
  max-width: 420px;
  margin: 0 auto;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.fac-login-card .fac-login-badge {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--fac-accent), #2563eb);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}