// ─────────────────────────────────────────────────────────────────────────────
// Component: Symbol Detail  (.sd-* prefix)
// File: src/scss/components/_symbol_detail.scss
//
// Phase 2 — Health Dimensions Strip
// Phase 3 — Identity Banner 2-column restructure
// Phase 7 — Timeline refactor overlay tags + styled gap dividers
// ─────────────────────────────────────────────────────────────────────────────

// ── Timeline lineage boundary (renamed-from divider) ─────────────────────────

.sym2-tl-lineage-break {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  margin: 0.35rem 0 0.1rem;

  &::before,
  &::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-purple);
    opacity: 0.25;
  }

  svg {
    color: var(--color-purple);
    opacity: 0.7;
    flex-shrink: 0;
  }

  span {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--color-purple);
    opacity: 0.8;
    white-space: nowrap;
    letter-spacing: 0.04em;
  }

  .sym2-tl-lineage-addr {
    color: var(--color-purple);
    text-decoration: none;
    opacity: 1;

    &:hover {
      text-decoration: underline;
    }
  }
}

// ── Timeline gap divider (detail-page override) ───────────────────────────────

.sym2-detail-page .sym2-tl-gap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0;
  opacity: 0.5;

  &::before,
  &::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-default);
  }

  span {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    white-space: nowrap;
  }
}

// ── Timeline readability overrides (detail-page scoped) ──────────────────────
//
// Each entry needs enough vertical room to be scanned without feeling cramped.
// The epoch break is the "chapter heading" — it should breathe above it.
// The commit message is the WHY — it should be readable, not truncated.

.sym2-detail-page {

  .sym2-tl-content {
    padding: 0.15rem 0 0.85rem 0.65rem;
  }

  .sym2-tl-message-row {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    margin-top: 0.15rem;
  }

  .sym2-tl-branch-row {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    margin-top: 0.2rem;
  }

  .sym2-tl-message {
    white-space: normal;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.4;
  }

  .sym2-tl-header {
    gap: 0.35rem;
    margin-bottom: 0;
  }
}

// ── Op label — plain colored ALL CAPS text, no pill chrome ────────────────────
.sd-op-badge {
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-mono);

  &.sd-op--add    { color: var(--color-success); }
  &.sd-op--mod    { color: var(--color-accent);  }
  &.sd-op--del    { color: var(--color-danger);  }
  &.sd-op--move   { color: var(--color-orange);  }
  &.sd-op--rename { color: var(--color-purple);  }
}

// ── Cohen-transform diff block ────────────────────────────────────────────────
.sd-body-diff {
  margin: 0.5rem 0 0.25rem;
  padding: 0.5rem 0.6rem;
  background: var(--bg-elevated);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
  color: var(--text-secondary);

  .sd-diff-hunk {
    color: var(--color-accent);
    opacity: 0.8;
  }

  .sd-diff-add {
    color: var(--color-success);
    display: block;
  }

  .sd-diff-del {
    color: var(--color-danger);
    display: block;
  }

  .sd-diff-trunc {
    color: var(--text-muted);
    font-style: italic;
  }
}

.sym2-detail-page {

  .sym2-tl-line {
    opacity: 0.45;
  }

  // Epoch break — more air above; feels like a section heading
  .sym2-tl-epoch {
    margin: 1.1rem 0 0.35rem;
    padding: 0.4rem 0.75rem;
  }
}

// ── Coupling heat fill — solid tier colour (replaces gradient) ────────────────

.sym2-heat-fill {
  background: var(--color-accent);  // default / low

  &--high     { background: var(--color-orange); }
  &--critical { background: var(--color-danger); }
  &--low      { background: color-mix(in srgb, var(--text-muted) 60%, transparent); }
}

// ── Identity banner right column ──────────────────────────────────────────────

.sym2-hero-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
  flex-shrink: 0;

  @media (max-width: 768px) {
    align-items: flex-start;
    width: 100%;
  }
}

// ── Health dimensions strip ───────────────────────────────────────────────────

.sd-health-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  // Pull edge-to-edge and butt up against the hero's bottom border
  margin-left: calc(-1 * var(--space-4));
  margin-right: calc(-1 * var(--space-4));
  margin-top: -0.75rem; // cancel the .sym2-detail-page flex gap
  border-bottom: 1px solid var(--border-default);
}

.sd-health-card {
  flex: 1;
  min-width: 9rem;
  background: var(--bg-page);
  border-right: 1px solid var(--border-default);
  padding: 0.75rem calc(1rem + var(--space-4)) 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: background 0.12s ease;

  &:last-child { border-right: none; }
  &:hover { background: var(--bg-surface); }

}

.sd-health-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

// Fill bar — CSS-only, driven by inline style="--pct:N"
.sd-health-bar-wrap {
  position: relative;
  height: 4px;
  background: color-mix(in srgb, var(--border-default) 60%, transparent);
  border-radius: 2px;
  overflow: hidden;
}

.sd-health-bar {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--pct, 0%);
  border-radius: 2px;
  transition: width 0.4s ease;

  .sd-health-card--stability & { background: var(--color-teal); }
  .sd-health-card--type      & { background: var(--color-purple); }
  .sd-health-card--blast     & { background: var(--color-danger); }
  .sd-health-card--gravity   & { background: var(--color-orange); }
  .sd-health-card--api       & { background: var(--color-success); }
}

.sd-health-score {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-mono);
  line-height: 1;

  .sd-health-card--stability & { color: var(--color-teal); }
  .sd-health-card--type      & { color: var(--color-purple); }
  .sd-health-card--gravity   & { color: var(--color-orange); }
  .sd-health-card--api       & { color: var(--color-success); }

  // Blast risk gets tier-specific colour
  .sd-health-card--blast.sd-blast--critical & { color: var(--color-danger-critical); }
  .sd-health-card--blast.sd-blast--high     & { color: var(--color-danger); }
  .sd-health-card--blast.sd-blast--medium   & { color: var(--color-orange); }
  .sd-health-card--blast.sd-blast--low      & { color: var(--color-success); }
  .sd-health-card--blast.sd-blast--none     & { color: var(--text-muted); }
}

.sd-health-sub {
  font-size: 0.62rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  line-height: 1.3;
}

// ── Vitals quad (2×2 grid of key numbers in identity strip) ──────────────────

.sd-vitals-quad {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 0.75rem;
  min-width: 9rem;
  flex-shrink: 0;
}

.sd-vitals-cell {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.sd-vitals-num {
  font-size: 1.25rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-accent);
  line-height: 1;
}

.sd-vitals-key {
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

// ── Narrative line ────────────────────────────────────────────────────────────

.sd-narrative {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  margin: 0.4rem 0 0;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

// ── Blast radius card (Zone 3 right column) ───────────────────────────────────

.sd-blast-radius {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 0.75rem;
  margin: 0.5rem 0;
}

.sd-blast-metric {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.sd-blast-metric-val {
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.sd-blast-metric-lbl {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sd-blast-top-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.sd-blast-top-item {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;

  a {
    color: var(--color-accent-link);
    text-decoration: none;
    &:hover { text-decoration: underline; }
  }
}

// ── Refactoring history (Zone 4) ──────────────────────────────────────────────

.sd-refactor-section {
  margin-top: 1.5rem;
}

.sd-section-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.sd-refactor-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-default);
  border-radius: 6px;
  overflow: hidden;
}

.sd-refactor-row {
  display: grid;
  grid-template-columns: 6rem 1fr auto auto;
  gap: 0 0.75rem;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: var(--bg-page);
  border-bottom: 1px solid var(--border-default);
  transition: background 0.1s ease;

  &:last-child { border-bottom: none; }
  &:hover { background: var(--bg-surface); }

  @media (max-width: 900px) {
    grid-template-columns: 5rem 1fr;
    .sd-refactor-detail { display: none; }
  }
}

.sd-refactor-detail {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sd-refactor-time {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  white-space: nowrap;
}

// ── Type health section (Zone 5) ──────────────────────────────────────────────

.sd-type-section {
  margin-top: 1.5rem;
}

.sd-type-card {
  background: var(--bg-page);
  border: 1px solid color-mix(in srgb, var(--color-purple) 25%, transparent);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.sd-type-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sd-type-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  min-width: 5rem;
}

.sd-type-val {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.sd-type-return {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-purple);
  background: color-mix(in srgb, var(--color-purple) 10%, transparent);
  padding: 1px 6px;
  border-radius: 4px;
}

// ── API surface badge ─────────────────────────────────────────────────────────

.sd-api-card {
  background: color-mix(in srgb, var(--color-success) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-success) 25%, transparent);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--color-success);
  margin-top: 0.75rem;
}

// ── Stable card ───────────────────────────────────────────────────────────────

.sd-stable-card {
  background: color-mix(in srgb, var(--color-teal) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-teal) 25%, transparent);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--color-teal);
  margin-top: 0.75rem;
}

// ── Dead code card ────────────────────────────────────────────────────────────

.sd-dead-card {
  background: color-mix(in srgb, #79c0ff 6%, transparent);
  border: 1px solid color-mix(in srgb, #79c0ff 25%, transparent);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: #79c0ff;
  margin-top: 0.75rem;
}

// ── Timeline refactor overlay tag ─────────────────────────────────────────────

.sd-tl-refactor-tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 1px 5px;
  border-radius: 3px;
  text-transform: lowercase;
  white-space: nowrap;
  background: color-mix(in srgb, var(--color-purple) 12%, transparent);
  color: var(--color-purple);
  border: 1px solid color-mix(in srgb, var(--color-purple) 30%, transparent);
}

// ── Pagination controls ───────────────────────────────────────────────────────

.sym2-pagination {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  padding: 0.5rem 0 0.2rem;
  justify-content: flex-start;
}

.sym2-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 4px;
  background: transparent;
  color: var(--color-accent-link);
  font-size: 0.8rem;
  text-decoration: none;
  border: none;
  transition: color 0.15s, background 0.15s;
  line-height: 1;
  cursor: pointer;

  &:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
  }

  &--off {
    color: var(--text-disabled);
    cursor: default;
    pointer-events: none;
  }
}

.sym2-page-indicator {
  font-size: 0.7rem;
  color: var(--text-muted);
  padding: 0 0.4rem;
  white-space: nowrap;
}