/* Portal Combobox — paired with static/js/portal_combobox.js.
 *
 * Command-Kit posture (docs/command_kit.md): squared, dense, token-driven.
 * Every colour chains --pcb-* → --app-* → --portal-* → --bs-*, so Light /
 * 23rd-Dark / Ocean switch with no per-theme rules and no hex anywhere.
 * A section re-themes a field by overriding the --pcb-* tokens on `.pcb`;
 * the JS copies the computed tokens onto the (body-portaled) panel.
 */

.pcb {
  --pcb-bg: var(--app-panel, var(--portal-surface-bg, var(--bs-body-bg)));
  --pcb-fg: var(--app-fg, var(--portal-body-color, var(--bs-body-color)));
  --pcb-muted: var(--app-muted, var(--portal-muted-color, var(--bs-secondary-color)));
  --pcb-line: var(--app-border, var(--portal-border-color, var(--bs-border-color)));
  --pcb-accent: var(--app-accent, var(--portal-accent, var(--bs-primary)));
  --pcb-hover: color-mix(in srgb, var(--pcb-accent) 12%, var(--pcb-bg));
  --pcb-focus: color-mix(in srgb, var(--pcb-accent) 35%, transparent);
  --pcb-shadow: 0 14px 34px color-mix(in srgb, var(--pcb-fg) 22%, transparent);
  --pcb-font-size: 0.8rem;
  --pcb-height: 1.9rem;

  position: relative;
  display: inline-flex;
  align-items: center;
  min-width: 0;
  width: 100%;
  font-size: var(--pcb-font-size);
  color: var(--pcb-fg);
}

/* The native select stays for form submission / scripts, but off-screen. */
select.pcb-native {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  border: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.pcb__input {
  width: 100%;
  min-width: 0;
  height: var(--pcb-height);
  padding: 0 3.1rem 0 1.7rem;
  border: 1px solid var(--pcb-line);
  border-radius: 0;
  background: var(--pcb-bg);
  color: var(--pcb-fg);
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-overflow: ellipsis;
  cursor: pointer;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.pcb__input::placeholder { color: var(--pcb-muted); font-weight: 500; opacity: 1; }
.pcb__input::-webkit-search-decoration,
.pcb__input::-webkit-search-cancel-button { display: none; }
.pcb:hover .pcb__input { border-color: color-mix(in srgb, var(--pcb-accent) 55%, var(--pcb-line)); }
.pcb.is-open .pcb__input,
.pcb__input:focus {
  outline: none;
  cursor: text;
  border-color: var(--pcb-accent);
  box-shadow: 0 0 0 .18rem var(--pcb-focus) !important;
}
.pcb.is-invalid .pcb__input { border-color: var(--app-bad, var(--bs-danger)); }
.pcb.is-disabled .pcb__input { opacity: .6; cursor: not-allowed; }

.pcb__icon,
.pcb__caret {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--pcb-muted);
  pointer-events: none;
  font-size: .78em;
  line-height: 1;
}
.pcb__icon { left: .6rem; }
.pcb__caret {
  right: .2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 100%;
  pointer-events: auto;
  cursor: pointer;
  transition: color .15s ease;
}
.pcb.is-open .pcb__caret::before { transform: rotate(180deg); }
.pcb__caret::before { transition: transform .15s ease; }
.pcb.is-open .pcb__caret { color: var(--pcb-accent); }
.pcb.is-open .pcb__icon { color: var(--pcb-accent); }

.pcb__clear {
  position: absolute;
  right: 1.6rem;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.3rem;
  height: 1.3rem;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--pcb-muted);
  font-size: .7em;
  line-height: 1;
  cursor: pointer;
}
.pcb__clear:hover { color: var(--pcb-accent); }
.pcb__clear[hidden] { display: none; }

/* ── Panel (on <body>, position:fixed; left/top/width set by the JS) ─── */
.pcb__panel {
  position: fixed;
  z-index: 6000;
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--pcb-line);
  border-top-color: var(--pcb-accent);
  border-radius: 0;
  background: var(--pcb-bg);
  color: var(--pcb-fg);
  font-size: var(--pcb-font-size, .8rem);
  box-shadow: var(--pcb-shadow);
  overflow: hidden;
}
.pcb__panel.is-above { border-top-color: var(--pcb-line); border-bottom-color: var(--pcb-accent); }
.pcb__panel[hidden] { display: none; }

.pcb__list {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  padding: .2rem 0;
}

.pcb__group {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: .3rem .7rem .2rem;
  background: var(--pcb-bg);
  color: var(--pcb-muted);
  font-size: .62em;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--pcb-line);
}

.pcb__opt {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .42rem .7rem;
  cursor: pointer;
  color: var(--pcb-fg);
  line-height: 1.25;
  border-left: 3px solid transparent;
}
.pcb__opt-label { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pcb__opt-meta {
  flex: 0 0 auto;
  color: var(--pcb-muted);
  font-size: .78em;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}
.pcb__opt-recent { color: var(--pcb-muted); font-size: .85em; }
.pcb__opt-check { color: var(--pcb-accent); font-size: .95em; }
.pcb__opt.is-placeholder { color: var(--pcb-muted); font-style: italic; }
.pcb__opt.is-active { background: var(--pcb-hover); border-left-color: var(--pcb-accent); }
.pcb__opt.is-selected { font-weight: 700; }
.pcb__opt.is-selected .pcb__opt-label { color: var(--pcb-accent); }

.pcb__hit {
  padding: 0;
  background: transparent;
  color: var(--pcb-accent);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 2px;
}

.pcb__empty { padding: .8rem .7rem; color: var(--pcb-muted); font-style: italic; }

.pcb__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  padding: .28rem .7rem;
  border-top: 1px solid var(--pcb-line);
  background: color-mix(in srgb, var(--pcb-fg) 4%, var(--pcb-bg));
  color: var(--pcb-muted);
  font-size: .7em;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}
.pcb__count { flex: 0 0 auto; white-space: nowrap; }
.pcb__keys { display: inline-flex; align-items: center; gap: .3rem; min-width: 0; overflow: hidden; white-space: nowrap; text-transform: none; letter-spacing: 0; font-weight: 500; }
.pcb__keys kbd {
  display: inline-block;
  padding: 0 .3rem;
  border: 1px solid var(--pcb-line);
  border-radius: 0;
  background: var(--pcb-bg);
  color: var(--pcb-muted);
  font: inherit;
  font-size: .95em;
  line-height: 1.4;
}

/* Touch: hide the keyboard legend, keep tap targets generous and stop iOS
   from auto-zooming into the field. */
@media (hover: none), (max-width: 640px) {
  .pcb__keys { display: none; }
  .pcb__opt { padding-top: .6rem; padding-bottom: .6rem; }
}
@media (max-width: 640px) {
  .pcb__input { font-size: 16px; }
}