/* Phase 6 — in-place comments overlay
 *
 * Lives inside the canvas iframe; portaled into `.dc-world` so CSS zoom on the
 * world plane scales the entire layer (pins + composer + thread popover)
 * uniformly with the artboards.
 *
 * Maude-chrome tokens ONLY (`--maude-chrome-*` / `--maude-hud-*`, defined by
 * canvas-shell.tsx's HUD_TOKENS_CSS) — never the project DS's own `--bg-*` /
 * `--fg-*` / `--accent*` names. This overlay is studio chrome, not canvas
 * content: it must look identical across every project regardless of which
 * design system is loaded, the same discipline already applied to the
 * toolbar/halos/context-menu/export-dialog. Reusing the DS's own token names
 * here was the bug — the composer/pins/thread re-skinned themselves to match
 * whatever palette the open canvas happened to declare.
 */

.cm-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  /* Pins / composer / thread sit ABOVE the SelectionHalos chrome (z-index 5
   * in canvas-shell HALO_CSS). Rendered as a sibling of `.dc-canvas` (NOT
   * portaled into `.dc-world`) so we share the root stacking context with
   * the halos — z-index here directly competes with theirs. Bonus: pins stay
   * fixed 24px regardless of canvas zoom, FigJam-style. */
  z-index: 10;
}

/* ─── Pin badge ───────────────────────────────────────────────────────────── */
.cm-pin {
  position: absolute;
  width: 24px;
  height: 24px;
  padding: 0;
  margin: 0;
  background: var(--maude-hud-accent, #6f63ef);
  color: var(--maude-hud-accent-fg, #faf6ef);
  border: 1.5px solid var(--maude-chrome-bg-0, #14131a);
  border-radius: 5px 5px 5px 2px;
  box-shadow: 0 4px 14px var(--maude-chrome-shadow, rgba(0,0,0,0.3));
  font: 600 11px / 1 var(--maude-chrome-font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  letter-spacing: 0.04em;
  display: grid;
  place-items: center;
  cursor: pointer;
  pointer-events: auto;
  user-select: none;
  transition: background 120ms ease-out;
  will-change: transform;
}

.cm-pin:hover,
.cm-pin[aria-expanded='true'] {
  background: var(--maude-hud-accent-hover, color-mix(in oklab, var(--maude-hud-accent, #d63b1f) 90%, white));
}

.cm-pin:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--maude-hud-accent, #d63b1f);
}

.cm-pin[data-resolved='true'] {
  background: var(--maude-chrome-bg-2, #1c1916);
  color: var(--maude-chrome-fg-1, #6e6660);
  opacity: 0.6;
}

.cm-pin[data-focused='true'] {
  /* Subtle ring — DS hard-edges discipline: no glow, just a hairline outline. */
  outline: 1px solid var(--maude-chrome-fg-0, #2a2520);
  outline-offset: 1px;
}

/* ─── Composer card ───────────────────────────────────────────────────────── */
.cm-composer {
  position: absolute;
  width: 300px;
  background: var(--maude-chrome-bg-1, #faf6ef);
  border: 1px solid var(--maude-chrome-border, #3a352f);
  border-radius: 2px;
  padding: 12px;
  box-shadow: 0 4px 14px var(--maude-chrome-shadow, rgba(0,0,0,0.22));
  font: 13px / 1.5 system-ui, sans-serif;
  color: var(--maude-chrome-fg-0, #2a2520);
  pointer-events: auto;
  z-index: 4;
}

.cm-composer__head {
  font-size: 11px;
  color: var(--maude-chrome-fg-1, #6e6660);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 4px 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

.cm-composer__selector {
  color: var(--maude-chrome-fg-0, #4a4540);
  background: color-mix(in oklab, var(--maude-chrome-bg-1, #faf6ef) 80%, var(--maude-hud-accent, #d63b1f) 6%);
  padding: 0 4px;
  border: 1px solid var(--maude-chrome-border, #c8bfb4);
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
}

.cm-composer__textarea {
  width: 100%;
  min-height: 72px;
  resize: vertical;
  background: var(--maude-chrome-bg-0, #ffffff);
  color: var(--maude-chrome-fg-0, #2a2520);
  border: 1px solid var(--maude-chrome-border, #3a352f);
  border-radius: 5px;
  padding: 8px;
  font: inherit;
  box-sizing: border-box;
}

.cm-composer__textarea:focus-visible {
  outline: none;
  border-color: var(--maude-hud-accent, #d63b1f);
  box-shadow: 0 0 0 2px var(--maude-hud-accent, #d63b1f);
}

.cm-composer__actions {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
  margin-top: 8px;
}

.cm-btn {
  font: 500 11px / 1.4 var(--maude-chrome-font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid var(--maude-chrome-border, #3a352f);
  border-radius: 5px;
  cursor: pointer;
  background: transparent;
  color: var(--maude-chrome-fg-0, #2a2520);
  transition: background 120ms ease-out;
}

.cm-btn:hover {
  background: var(--maude-chrome-bg-2, color-mix(in oklab, var(--maude-chrome-bg-1, #faf6ef) 80%, var(--maude-chrome-fg-0, #2a2520) 6%));
}

.cm-btn--primary {
  background: var(--maude-hud-accent, #d63b1f);
  color: var(--maude-hud-accent-fg, #faf6ef);
  border-color: var(--maude-hud-accent, #d63b1f);
}

.cm-btn--primary:hover {
  background: var(--maude-hud-accent-hover, color-mix(in oklab, var(--maude-hud-accent, #d63b1f) 90%, white));
}

.cm-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.cm-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--maude-hud-accent, #d63b1f);
}

/* ─── Thread popover ──────────────────────────────────────────────────────── */
.cm-thread {
  position: absolute;
  width: 340px;
  max-height: 60vh;
  overflow: auto;
  background: var(--maude-chrome-bg-2, color-mix(in oklab, var(--maude-chrome-bg-1, #faf6ef) 80%, var(--maude-chrome-fg-0, #2a2520) 6%));
  border: 1px solid var(--maude-chrome-border, #3a352f);
  border-radius: 2px;
  padding: 12px;
  box-shadow: 0 4px 14px var(--maude-chrome-shadow, rgba(0,0,0,0.22));
  font: 13px / 1.5 system-ui, sans-serif;
  color: var(--maude-chrome-fg-0, #2a2520);
  pointer-events: auto;
  z-index: 5;
}

.cm-thread__head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--maude-chrome-border, #3a352f);
}

.cm-thread__head-row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 4px;
}

/* Plan C P18 — pin/sequence badge in the thread popover header. */
.cm-thread__seq {
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: var(--maude-hud-accent, #d63b1f);
  color: var(--maude-hud-accent-fg, #fff);
  font: 600 11px / 1 var(--maude-chrome-font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
}

.cm-thread__close {
  background: transparent;
  color: var(--maude-chrome-fg-1, #6e6660);
  border: 1px solid var(--maude-chrome-border, #3a352f);
  padding: 0 4px;
  font: 600 11px / 1.2 var(--maude-chrome-font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  cursor: pointer;
  align-self: flex-start;
  margin-left: auto;
  transition: background 120ms ease-out;
}

.cm-thread__close:hover {
  background: color-mix(in oklab, var(--maude-chrome-fg-0, #1c1917) 8%, transparent);
  color: var(--maude-chrome-fg-0, #2a2520);
}

.cm-thread__close:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--maude-hud-accent, #d63b1f);
}

.cm-thread__author {
  color: var(--maude-chrome-fg-0, #2a2520);
  font-weight: 600;
}

.cm-thread__time {
  color: var(--maude-chrome-fg-1, #6e6660);
  font-size: 11px;
}

.cm-thread__selector {
  display: inline-block;
  color: var(--maude-chrome-fg-1, #6e6660);
  font-size: 11px;
  border: 1px solid var(--maude-chrome-border, #c8bfb4);
  padding: 0 4px;
  background: color-mix(in oklab, var(--maude-chrome-bg-1, #faf6ef) 80%, var(--maude-hud-accent, #d63b1f) 6%);
  align-self: flex-start;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cm-thread__body {
  padding: 8px 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.cm-thread__body strong,
.cm-thread__reply-body strong {
  /* @mention tokens — bold, accent color. Inserted by `renderBodyWithMentions`. */
  color: var(--maude-hud-accent, #d63b1f);
  font-weight: 600;
}

.cm-thread__reply {
  padding: 8px 0;
  border-top: 1px solid var(--maude-chrome-border, #c8bfb4);
}

.cm-thread__reply-head {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 4px;
}

.cm-thread__reply-author {
  color: var(--maude-chrome-fg-0, #4a4540);
  font-weight: 600;
}

.cm-thread__reply-time {
  color: var(--maude-chrome-fg-1, #6e6660);
  font-size: 11px;
}

.cm-thread__reply-body {
  white-space: pre-wrap;
  word-break: break-word;
}

.cm-thread__reply-form {
  padding-top: 8px;
  border-top: 1px solid var(--maude-chrome-border, #3a352f);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cm-thread__reply-textarea {
  width: 100%;
  min-height: 56px;
  resize: vertical;
  background: var(--maude-chrome-bg-0, #ffffff);
  color: var(--maude-chrome-fg-0, #2a2520);
  border: 1px solid var(--maude-chrome-border, #3a352f);
  border-radius: 5px;
  padding: 8px;
  font: inherit;
  box-sizing: border-box;
}

.cm-thread__reply-textarea:focus-visible {
  outline: none;
  border-color: var(--maude-hud-accent, #d63b1f);
  box-shadow: 0 0 0 2px var(--maude-hud-accent, #d63b1f);
}

.cm-thread__reply-actions {
  display: flex;
  justify-content: flex-end;
  gap: 4px;
}

.cm-thread__actions {
  display: flex;
  gap: 4px;
  padding-top: 8px;
  margin-top: 8px;
  border-top: 1px solid var(--maude-chrome-border, #3a352f);
}

.cm-thread__actions .cm-btn--danger {
  margin-left: auto;
  color: #c0392b;
  border-color: #c0392b;
}

.cm-thread__actions .cm-btn--danger:hover {
  background: color-mix(in oklab, #c0392b 12%, transparent);
}

/* ─── @mention autocomplete ──────────────────────────────────────────────── */
.cm-mention-popup {
  position: absolute;
  background: var(--maude-chrome-bg-2, color-mix(in oklab, var(--maude-chrome-bg-1, #faf6ef) 80%, var(--maude-chrome-fg-0, #2a2520) 6%));
  border: 1px solid var(--maude-chrome-border, #3a352f);
  border-radius: 5px;
  font: 11px / 1.3 var(--maude-chrome-font-mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  color: var(--maude-chrome-fg-0, #2a2520);
  max-height: 180px;
  min-width: 160px;
  overflow: auto;
  box-shadow: 0 4px 14px var(--maude-chrome-shadow, rgba(0,0,0,0.22));
  pointer-events: auto;
  z-index: 6;
  list-style: none;
  padding: 0;
  margin: 0;
}

.cm-mention-popup__item {
  padding: 4px 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.cm-mention-popup__item[aria-selected='true'] {
  background: var(--maude-hud-accent, #d63b1f);
  color: var(--maude-hud-accent-fg, #faf6ef);
}

.cm-mention-popup__name {
  font-weight: 600;
}

.cm-mention-popup__email {
  color: var(--maude-chrome-fg-1, #6e6660);
  font-size: 11px;
}

.cm-mention-popup__item[aria-selected='true'] .cm-mention-popup__email {
  color: var(--maude-hud-accent-fg, #faf6ef);
  opacity: 0.85;
}