/* =====================================================================
   Memo viewer — side-by-side memo + exhibits, version diff, comments
   ===================================================================== */

.memo-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 18px;
  align-items: start;
}

.memo-exhibits-pane-wrap {
  position: sticky;
  top: calc(var(--header-h) + 18px);
  max-height: calc(100vh - var(--header-h) - 36px);
  overflow-y: auto;
}

.memo-exhibits-pane {
  background: var(--cream-2);
  border: 1px solid var(--gold-15);
  padding: 12px 14px;
}

.exhibit-card {
  background: var(--cream);
  border: 1px solid var(--gold-15);
  padding: 10px 12px;
  margin-top: 10px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.exhibit-card:hover, .exhibit-card:focus-visible {
  border-color: var(--gold);
  background: var(--gold-08);
  outline: none;
}
.exhibit-card-header {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.exhibit-card-header .exhibit-id {
  color: var(--gold-dk);
  font-weight: 600;
}
.exhibit-card-title {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--navy);
  line-height: 1.25;
  font-weight: 500;
  margin-bottom: 3px;
}
.exhibit-card-source {
  font-family: var(--font-mono);
  font-size: 10px;
}

.memo-main { min-width: 0; }

.memo-topbar {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  padding: 12px 16px;
  margin-bottom: 14px;
  background: var(--cream-2);
  border: 1px solid var(--gold-15);
  flex-wrap: wrap;
}
.memo-topbar .field-label { margin-bottom: 2px; }
.memo-topbar .field-select { width: auto; min-width: 200px; padding: 5px 22px 5px 8px; font-size: 12px; }
.memo-topbar .memo-version-block,
.memo-topbar .memo-diff-block,
.memo-topbar .memo-actions {
  display: flex;
  align-items: flex-end;
  gap: 6px;
}
.memo-topbar .memo-actions { margin-left: auto; }

.memo-section {
  background: var(--cream-2);
  border: 1px solid var(--gold-15);
  padding: 22px 28px;
  margin-bottom: 18px;
}
.memo-section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--rule-light);
}
.memo-section-header h2 {
  font-size: 22px;
  margin-top: 2px;
}
.memo-section-actions { display: flex; gap: 6px; flex-shrink: 0; }

.memo-section-body {
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--ink-mid);
  line-height: 1.6;
}
.memo-section-body h1,
.memo-section-body h2,
.memo-section-body h3 {
  margin-top: 18px;
  margin-bottom: 6px;
  color: var(--navy);
}
.memo-section-body h3 { font-size: 15px; }
.memo-section-body p { margin: 0 0 12px; }
.memo-section-body ul { margin: 0 0 12px 18px; padding: 0; }
.memo-section-body li { margin-bottom: 4px; }
.memo-section-body strong { color: var(--navy); }
.memo-section-body em { color: var(--gold-dk); }

.memo-exhibits {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--rule-light);
}
.memo-exhibit-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.exhibit-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  background: var(--cream);
  border: 1px solid var(--gold-30);
  font-family: var(--font-ui);
  font-size: 11px;
  color: var(--gold-dk);
  cursor: pointer;
}
.exhibit-chip:hover { background: var(--gold-08); }
.exhibit-chip .exhibit-id {
  font-family: var(--font-sc);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.memo-section-comments {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--rule-light);
}

/* === Version diff === */
.memo-section-diff { padding: 16px 22px; }

.diff-summary {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}
.diff-view {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--cream);
  border: 1px solid var(--rule-light);
  padding: 8px 0;
  line-height: 1.55;
}
.diff-row {
  display: flex;
  gap: 8px;
  padding: 1px 14px;
  white-space: pre-wrap;
  word-break: break-word;
}
.diff-row .diff-gutter {
  flex-shrink: 0;
  width: 14px;
  text-align: right;
  color: var(--ink-faint);
  font-weight: 600;
}
.diff-row .diff-text { flex: 1; }
.diff-row.add { background: var(--positive-bg); color: var(--positive); }
.diff-row.add .diff-gutter { color: var(--positive); }
.diff-row.del { background: var(--negative-bg); color: var(--negative); text-decoration: line-through; text-decoration-color: rgba(138, 80, 64, 0.4); }
.diff-row.del .diff-gutter { color: var(--negative); }
.diff-row.eq { color: var(--ink-mid); }