/* ============================================
   EGK Residents - Components
   Reusable UI components
   ============================================ */

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgb(0 0 0 / 0.4);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-color);
}
.modal-title { font-size: var(--text-md); font-weight: var(--font-semibold); margin: 0; }
.modal-body { padding: var(--space-3); }
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border-color);
}

/* ---- Unit Cards ---- */
.unit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-3);
}
.unit-card {
  background: var(--color-white);
  border: 2px solid #93c5fd;
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow: 0 2px 6px rgb(37 99 235 / 0.08), 0 1px 2px rgb(0 0 0 / 0.04);
  transition: box-shadow 0.15s, border-color 0.15s;
}
.unit-card:hover {
  border-color: #60a5fa;
  box-shadow: 0 4px 12px rgb(37 99 235 / 0.12), 0 2px 4px rgb(0 0 0 / 0.06);
}
.unit-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: calc(-1 * var(--space-3)) calc(-1 * var(--space-3)) var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-neutral-50) 100%);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border-bottom: 1px solid var(--border-color);
}
.unit-card--special .unit-card-header {
  background: linear-gradient(135deg, var(--color-warning-light) 0%, var(--color-neutral-50) 100%);
}
.unit-number {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-neutral-900);
}
.unit-actions { display: flex; gap: var(--space-1); }

/* ---- Stat cards ---- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
@media (min-width: 640px) {
  .stat-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}
.stat-card {
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
}
.stat-label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-neutral-500);
  margin-bottom: var(--space-1);
}
.stat-value {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-neutral-900);
  font-variant-numeric: tabular-nums;
}

/* ---- Loading spinner ---- */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-neutral-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Empty state ---- */
.empty-state {
  text-align: center;
  padding: var(--space-6);
  color: var(--color-neutral-500);
}
.empty-state i { font-size: 2rem; margin-bottom: var(--space-3); opacity: 0.4; }
.empty-state p { font-size: var(--text-sm); margin: 0; }

/* ---- form-control alias (maps to design system form styles) ---- */
.form-control {
  display: block;
  width: 100%;
  padding: 2px var(--space-2);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--color-neutral-800);
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color 0.15s;
  outline: none;
  height: 24px;
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgb(37 99 235 / 0.12);
}
textarea.form-control { resize: vertical; min-height: 52px; height: auto; }
select.form-control { height: 24px; }

/* ---- Form layout helpers ---- */
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.form-section { }
.form-section-title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral-500);
  margin-bottom: var(--space-1);
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--border-color);
}

/* ---- Toggle (checkbox styled as switch) ---- */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}
.toggle-label { font-size: var(--text-sm); color: var(--color-neutral-700); display: flex; align-items: center; gap: var(--space-2); }
.toggle {
  appearance: none;
  width: 36px;
  height: 20px;
  background: var(--color-neutral-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}
.toggle::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: white;
  border-radius: 50%;
  transition: left 0.2s;
}
.toggle:checked { background: var(--color-primary); }
.toggle:checked::after { left: 18px; }

/* ---- Modal tabs ---- */
.modal-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background: var(--color-neutral-50);
}
.modal-tab {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-500);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  transition: all 0.15s;
}
.modal-tab:hover { color: var(--color-neutral-800); }
.modal-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); background: var(--color-white); }

/* ---- Unit card enhancements ---- */
.unit-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--text-md);
  font-weight: var(--font-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.unit-card--special .unit-badge {
  background: var(--color-warning-light);
  color: var(--color-warning);
}
.unit-card--special {
  border-color: var(--color-warning);
  border-width: 2px;
}
.unit-people {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: var(--space-2) 0;
  font-size: var(--text-sm);
}
.unit-person {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  color: var(--color-neutral-700);
}
.unit-person-detail {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.unit-person-contact {
  font-size: var(--text-xs);
  color: var(--color-neutral-500);
  display: flex;
  align-items: center;
  gap: 4px;
}
.unit-card-footer {
  display: flex;
  gap: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-color);
  margin-top: var(--space-2);
}

/* ---- badge-info ---- */
.badge-info { background: var(--color-info-light); color: var(--color-info); }

/* ---- btn-outline-primary ---- */
.btn-outline-primary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-primary:hover { background: var(--color-primary-light); color: var(--color-primary); }

/* ---- tab-pane hidden helper ---- */
.tab-pane.hidden { display: none; }

/* ---- Horizontal scroll fade ----
   Structure: <div class="table-scroll-wrap"> (outer, has fades)
                <div class="table-scroll-inner"> (inner, actually scrolls)
                  <table>...
---- */
.table-scroll-wrap {
  position: relative;
}
.table-scroll-inner {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}
.table-scroll-wrap::before,
.table-scroll-wrap::after {
  content: '';
  position: absolute;
  top: 0;
  width: 48px;
  height: 100%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 1;
}
.table-scroll-wrap::before {
  left: 0;
  background: linear-gradient(to right, var(--color-white), transparent);
}
.table-scroll-wrap::after {
  right: 0;
  background: linear-gradient(to left, var(--color-white), transparent);
}
.table-scroll-wrap.scroll-fade-left::before  { opacity: 1; }
.table-scroll-wrap.scroll-fade-right::after  { opacity: 1; }

/* ---- Sticky first column (add to <table> for any wide scrollable table) ---- */
.sticky-first-col th:first-child,
.sticky-first-col td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
}
.sticky-first-col thead th:first-child       { background: var(--color-neutral-50); }
.sticky-first-col tbody td:first-child       { background: var(--color-white); }
.sticky-first-col tbody tr:hover td:first-child { background: var(--color-neutral-50); }
.sticky-first-col tfoot td:first-child       { background: var(--color-neutral-50); }