/* ════════════════════════════════════════════════════════════════════════
   THEME SWITCHER PANEL — portal-mounted on body, anchored to the topbar
   .hdr-theme button. Click trigger toggles open; click outside / Esc /
   scroll outside closes. Saved choice persists in localStorage("kr-theme").
   Ported from I:/_UI_DISCIPLINE/ThemeSwitcher.html.
   ════════════════════════════════════════════════════════════════════════ */

.ts-panel {
  position: fixed;
  z-index: 100;
  width: 400px;
  max-height: 540px;
  background: var(--io-surface-raised);
  border: 1px solid var(--io-border-subtle);
  border-radius: var(--io-radius-xs, 3px);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6), 0 0 14px var(--io-accent-glow);
  overflow: hidden;
}

.ts-panel.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.ts-search-wrap {
  position: relative;
  padding: 10px;
  border-bottom: 1px solid var(--io-border-subtle);
}

.ts-search {
  display: block;
  width: 100%;
  height: 36px;
  padding: 0 12px 0 36px;
  background: var(--io-surface-sunken);
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs, 3px);
  color: var(--io-text-primary);
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-sm);
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
.ts-search::placeholder { color: var(--io-text-disabled); }
.ts-search:focus {
  border-color: var(--io-accent);
  box-shadow: 0 0 0 1px var(--io-accent-subtle);
}

.ts-search-ic {
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--io-text-tertiary);
  font-size: var(--io-fs-sm);
  pointer-events: none;
}

.ts-list {
  overflow-y: auto;
  flex: 1;
  padding: 4px 0 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--io-border) transparent;
}
.ts-list::-webkit-scrollbar { width: 6px; }
.ts-list::-webkit-scrollbar-thumb { background: var(--io-border); }
.ts-list::-webkit-scrollbar-track { background: transparent; }

.ts-section {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 0.15em;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
  padding: 12px 14px 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.ts-section .count { color: var(--io-accent); margin-left: auto; }
.ts-section::before { content: "//"; color: var(--io-text-disabled); }

.ts-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 9px 14px;
  cursor: pointer;
  transition: background 120ms ease;
  border-left: 2px solid transparent;
}
.ts-row:hover { background: var(--io-surface-hover); }
.ts-row.active {
  background: var(--io-accent-subtle);
  border-left-color: var(--io-accent);
}

.ts-pal {
  display: inline-flex;
  height: 24px;
  width: 28px;
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs, 3px);
  overflow: hidden;
  flex-shrink: 0;
}
.ts-pal span { display: block; flex: 1; height: 100%; }

.ts-info { min-width: 0; }
.ts-name {
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-sm);
  font-weight: 600;
  color: var(--io-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ts-desc {
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-micro);
  color: var(--io-text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}
.ts-row.active .ts-name { color: var(--io-accent); }

.ts-check {
  width: 14px;
  text-align: center;
  color: var(--io-accent);
  opacity: 0;
  transition: opacity 120ms ease;
}
.ts-row.active .ts-check { opacity: 1; }

.ts-empty {
  padding: 24px 14px;
  text-align: center;
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 0.12em;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
}

.ts-foot {
  border-top: 1px solid var(--io-border-subtle);
  padding: 8px 14px;
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 0.12em;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ts-foot .grow { flex: 1; }
.ts-foot kbd {
  font-family: var(--io-font-pixel);
  font-size: 9px;
  padding: 2px 6px;
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs, 3px);
  color: var(--io-text-secondary);
  background: var(--io-surface-overlay);
}