/* ============================================================
   Smart Write — Versions & session history (PRD §9 UI surfaces)
   - .version-line       slim rows (overview card §9.5.1, panel §9.5.3)
   - .version-row        full rows + trail (Versions screen §9.5.2)
   - .version-preview    read-only version text, distinct colour (§9.5.4)
   - .panel--wide        ~50% details panel for the side-by-side read view
   ============================================================ */

/* ---------- slim rows (overview card + details panel) ---------- */

.version-list {
  display: flex;
  flex-direction: column;
}

.version-line {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 13.5px;
}
.version-line:last-child { border-bottom: 0; }

.version-line__current {
  width: 14px;
  flex: 0 0 auto;
  text-align: center;
  color: transparent;
  font-size: 10px;
  line-height: 1;
}
.version-line__current.is-on { color: var(--accent); }

.version-line__label {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.version-line__date,
.version-line__words,
.version-line__meta {
  color: var(--text-dim);
  font-size: 12.5px;
  white-space: nowrap;
}

.version-line__action { margin-left: auto; flex: 0 0 auto; }

/* Overview-card variant: label takes the room, date/words trail it. */
.version-list--short .version-line__label { flex: 1 1 auto; }

/* §9.5.1 — book overview current-version dropdown */
.version-overview-control { margin-bottom: 4px; }

.version-current-select {
  width: 100%;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.version-current-select:hover:not(:disabled) { border-color: var(--hairline-strong); }
.version-current-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.version-current-select:disabled {
  cursor: default;
  color: var(--text-dim);
}

.version-overview-hint {
  margin-top: 6px;
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* Panel variant: stacked label + meta, View button at the end. */
.version-line--panel { gap: 8px; }
.version-line--panel .version-line__text {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-left:15px;
}
.version-line--panel .version-line__meta {
  white-space: normal;
}

/* ---------- editor status pullout + save submenu (§9.5.3) ---------- */

/* Pullout mechanics = Font (#abgrp-editor-font-actions in app.css). Only the toggle colour differs. */
#abgrp-editor-status-actions #editor-status-select {
  width: 106px;
  min-width: 106px;
  max-width: 106px;
  flex: 0 0 106px;
  box-sizing: border-box;
  padding-left: 8px;
  padding-right: 8px;
}

#abgrp-editor-status-actions #editor-status-save-as-new {
  width: 93px;
  min-width: 93px;
  max-width: 93px;
  flex: 0 0 93px;
  box-sizing: border-box;
  white-space: nowrap;
  font-size: 12px;
  padding-left: 8px;
  padding-right: 8px;
}

#abgrp-editor-status-actions #editor-status-hover-pullout-toggle {
  width: 96px;
  min-width: 96px;
  max-width: 96px;
  box-sizing: border-box;
  color: var(--vs-hue);
  background: color-mix(in srgb, var(--vs-hue) var(--vs-lit), transparent);
  font-weight: 600;
  justify-content: center;
}

#abgrp-editor-status-actions:hover .editor-font-button-hover-pullout-content,
#abgrp-editor-status-actions:focus-within .editor-font-button-hover-pullout-content {
  max-width: 199px; /* 106 + 93 — fixed panel, not 22rem */
}

/* Hue from data-status — must match or beat #abgrp… #editor-status… specificity */
#abgrp-editor-status-actions #editor-status-hover-pullout-toggle[data-status="outline"] { --vs-hue: var(--vs-outline); }
#abgrp-editor-status-actions #editor-status-hover-pullout-toggle[data-status="drafting"] { --vs-hue: var(--vs-drafting); }
#abgrp-editor-status-actions #editor-status-hover-pullout-toggle[data-status="revising"] { --vs-hue: var(--vs-revising); }
#abgrp-editor-status-actions #editor-status-hover-pullout-toggle[data-status="editing"] { --vs-hue: var(--vs-editing); }
#abgrp-editor-status-actions #editor-status-hover-pullout-toggle[data-status="proofreading"] { --vs-hue: var(--vs-proofreading); }
#abgrp-editor-status-actions #editor-status-hover-pullout-toggle[data-status="final"] { --vs-hue: var(--vs-final); }
#abgrp-editor-status-actions #editor-status-hover-pullout-toggle[data-status="published"] { --vs-hue: var(--vs-published); }

.editor-save-actions {
  display: inline-flex;
  gap: 0;
  width: 100%;
}

.version-sort-segment { flex: 0 0 auto; }

.version-panel-toolbar {
  margin-bottom: 12px;
}

.version-panel-toolbar .segmented { width: 100%; }
.version-panel-toolbar .segmented button { flex: 1 1 0; justify-content: center; }

.version-status-group {
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.version-status-group__head {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  font-weight: 600;
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
}
.version-status-group__count {
  margin-left: auto;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}
.version-status-group__head::-webkit-details-marker { display: none; }
.version-status-group:not([open]) .version-status-group__head .ui-caret {
  transform: rotate(-90deg);
}

.version-status-group__rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 8px 8px;
}

.version-status-group--panel {
  border: none;
  border-radius: 0;
  margin-bottom: 0;
  border-bottom: 1px solid var(--hairline);
}
.version-status-group--panel:last-child { border-bottom: 0; }
.version-status-group--panel .version-status-group__head {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 10px 0 6px;
}
.version-status-group--panel .version-status-group__rows {
  gap: 0;
  padding: 0;
}
.version-status-group--panel .version-line--panel:last-child { border-bottom: 0; }

/* ---------- screen head status picker (§9.3.1) ---------- */

.version-status-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-right: 8px;
}

.version-status-select {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-xs);
  padding: 5px 8px;
  font: inherit;
  font-size: 13px;
}

/* ---------- version status tag (§9 — presentational) ---------- */

.version-status-tag {
    --vs-hue: var(--vs-drafting);
    --vs-stop: var(--vs-dim);
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.3;
    padding: 3px 12px;
    border-radius: var(--radius);
    white-space: nowrap;
    color: var(--vs-hue);
    background: 
 color-mix(in srgb, var(--vs-hue) var(--vs-stop), transparent);
}

.version-status-tag.is-current { --vs-stop: var(--vs-lit); }

.version-status-tag[data-status="outline"] { --vs-hue: var(--vs-outline); }
.version-status-tag[data-status="drafting"] { --vs-hue: var(--vs-drafting); }
.version-status-tag[data-status="revising"] { --vs-hue: var(--vs-revising); }
.version-status-tag[data-status="editing"] { --vs-hue: var(--vs-editing); }
.version-status-tag[data-status="proofreading"] { --vs-hue: var(--vs-proofreading); }
.version-status-tag[data-status="final"] { --vs-hue: var(--vs-final); }
.version-status-tag[data-status="published"] { --vs-hue: var(--vs-published); }

/* ---------- full rows (Versions screen) ---------- */

.version-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.version-row {
  background: var(--raised-bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-left: 40px
}

.version-row__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.version-row__current {
  width: 14px;
  flex: 0 0 auto;
  text-align: center;
  color: transparent;
  font-size: 11px;
  line-height: 1;
}
.version-row__current.is-on { color: var(--accent); }

.version-row__text { flex: 1 1 auto; min-width: 0; }

.version-row__label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text);
}

.version-row__chip {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.version-row__chip--auto {
  background: transparent;
  border: 1px solid var(--hairline-strong);
  color: var(--text-faint);
}

.version-row__meta {
  margin-top: 2px;
  font-size: 12.5px;
  color: var(--text-dim);
}

.version-row__actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

/* ---------- collapsible session-history trail (§9.5.2) ---------- */

.version-trail { margin-top: 8px; }

.version-trail__summary {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  list-style: none;
  font-size: 12.5px;
  color: var(--text-dim);
  padding: 4px 0 4px 26px;
  user-select: none;
}
.version-trail__summary::-webkit-details-marker { display: none; }
.version-trail__summary .ico { transition: transform 160ms ease; }
.version-trail[open] > .version-trail__summary .ico { transform: rotate(90deg); }

.version-trail__list {
  margin: 4px 0 2px 32px;
  border-left: 1px solid var(--hairline-strong);
  display: flex;
  flex-direction: column;
}

.version-trail__entry {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0 5px 12px;
  font-size: 12.5px;
  color: var(--text-dim);
}

.version-trail__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hairline-strong);
  margin-left: -15.5px;
  flex: 0 0 auto;
}

.version-trail__time { color: var(--text); }
.version-trail__words { color: var(--text-faint); }

.version-trail__actions {
  margin-left: auto;
  display: flex;
  gap: 4px;
}
.version-trail__actions .btn { font-size: 12px; padding: 2px 8px; }

/* ---------- read-only version text (§9.5.4) ---------- */

.version-preview {
  /* Distinct colour signals "frozen copy, not the live manuscript". */
  color: var(--heading);
  font-family: var(--font-editor);
  font-size: 15px;
  line-height: 1.7;
  user-select: text;
}
.version-preview h1, .version-preview h2, .version-preview h3 {
  color: var(--heading);
  margin: 1.2em 0 0.5em;
}
.version-preview p { margin: 0 0 0.8em; }
.version-preview blockquote {
  margin: 0 0 0.8em;
  padding-left: 12px;
  border-left: 2px solid var(--hairline-strong);
}
.version-preview__empty { color: var(--text-faint); }

.version-modal-body {
  max-height: 60vh;
  overflow-y: auto;
}

.version-view__note {
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 12px;
}

.version-view__meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* ---------- 50% read view (§9.5.4) ---------- */
/* Half of the editor stage (viewport minus menu inset), not half of 100vw. */

.panel--right.panel--wide {
  width: calc((100vw - var(--stage-inset-left)) / 2);
  transition: width var(--panel-duration) var(--panel-ease);
}

/* Push the editor stage aside so the frozen copy sits BESIDE the live
   working copy instead of covering it. */
.app-shell:has(.panel--right.panel--wide:not(.is-closed):not(.is-hidden)) {
  --stage-inset-right: calc((100vw - var(--stage-inset-left)) / 2);
}