/* Design detail page. Tokens in tokens.css. */

.dd {
  max-width: var(--content-max);
}

/* ── Hero ── */
.dd__hero {
  display: flex;
  gap: var(--space-8);
  align-items: flex-start;
}

.dd__info {
  flex: 1;
  min-width: 0;
}

.dd__heading-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.dd__heading-text {
  flex: 1;
  min-width: 0;
}

.dd__heading-text .dd__author {
  margin-bottom: 0;
}

.dd__tabs {
  flex-shrink: 0;
  margin-top: 0.3rem;
}

/* Anchor-variant segmented control — suppress default link underline. */
.dd__tabs a.segmented__btn,
.dd__tabs a.segmented__btn:hover {
  text-decoration: none;
}

.dd__title {
  font-family: var(--font-playfair-display);
  font-size: var(--fs-4xl);
  font-weight: var(--fw-regular);
  margin: 0 0 var(--space-1);
  color: var(--ink-1);
  line-height: 1.15;
}

/* .dd__identifier uses .eyebrow .eyebrow--muted in markup. */
.dd__identifier {
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.dd__collections {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.dd__collection-tag {
  display: inline-block;
  font-family: var(--font-barlow);
  font-size: 0.72rem;
  letter-spacing: var(--tracking-base);
  color: var(--ink-6);
  padding: 0.15rem 0.55rem;
  border: 1px solid var(--border-warm);
  background: var(--paper-4);
  border-radius: var(--radius-pill);
}

.dd__collection-tag:hover {
  color: var(--ink-1);
  text-decoration: none;
}

.dd__collection-tag--license {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-fg);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

.dd__author {
  font-family: var(--font-barlow);
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
  color: var(--ink-7);
  margin-bottom: var(--space-6);
}

/* ── Stats grid ── */
.dd__stats-layout {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
  margin-bottom: var(--space-6);
}

.dd__stats-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.dd__stats-col .dd__collections,
.dd__stats-col .dd__description {
  margin-bottom: 0;
}

.dd__stats {
  display: grid;
  grid-template-columns: auto auto auto auto;
  gap: var(--space-1) var(--space-3);
  font-family: var(--font-barlow);
  font-size: var(--fs-md);
  line-height: 1.5;
  margin: 0;
  width: fit-content;
}

.dd__stats dt {
  color: var(--ink-7);
  font-weight: 480;
  white-space: nowrap;
}

.dd__stats dd {
  margin: 0;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.dd__numerator {
  font-size: 0.8em;
  vertical-align: top;
  font-weight: 480;
}

.dd__denominator {
  font-size: 0.8em;
  vertical-align: bottom;
  font-weight: 480;
}

/* ── Video ── */
.dd__video-wrap {
  width: 20rem;
  flex-shrink: 0;
}

.dd__video {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--canvas-bg);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-sizing: border-box;
}

.dd__video-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--paper-5);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-barlow);
  font-size: var(--fs-base);
  color: var(--ink-9);
}

/* ── Interactive Renderer ── */

.dd__renderer-layout {
  display: flex;
  gap: var(--space-8);
  align-items: flex-start;
}

.dd__renderer-canvas-wrap {
  flex-shrink: 0;
  width: 32rem;
}

.dd__renderer-canvas {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--paper-1);
  border-radius: var(--radius-md);
  display: block;
}

.dd__renderer-status {
  margin-top: 0.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, auto);
  grid-auto-flow: column;
  align-items: center;
  gap: 0.4rem 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--paper-1);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono, monospace);
  font-size: var(--fs-xs);
  line-height: 1;
}

.dd__renderer-status > .dd__status-phase,
.dd__renderer-status > .dd__status-metric {
  justify-self: start;
}

.dd__status-phase {
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-1);
  background: var(--paper-2);
}

.dd__status-phase--preview   { background: #faecd0; color: #6e4a06; }
.dd__status-phase--rendering { background: #d6eaff; color: #1a456e; }
.dd__status-phase--idle      { background: var(--paper-2); color: var(--ink-2); }

.dd__status-metric {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  color: var(--ink-2);
}

.dd__status-label {
  opacity: 0.7;
}

.dd__status-value {
  color: var(--ink-1);
  font-weight: var(--fw-medium);
  font-variant-numeric: tabular-nums;
}

.dd__renderer-controls {
  flex: 1;
  min-width: 12rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media screen and (max-width: 800px) {
  .dd__renderer-layout {
    flex-direction: column;
  }
  .dd__renderer-canvas-wrap {
    width: 100%;
    max-width: 32rem;
  }
}

.dd__renderer-save {
  align-self: flex-start;
  font-family: var(--font-barlow);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-base);
  color: var(--ink-5);
  background: var(--paper-0);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-1) var(--space-4);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.dd__renderer-save:hover {
  color: var(--ink-2);
  border-color: var(--ink-8);
}

/* ── Material option with RI ── */

.dd__mat-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
}

.dd__mat-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dd__mat-ri {
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-xs);
  color: var(--ink-8);
}

/* ── Color option swatch ── */

.dd__color-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
}

.dd__color-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dd__color-swatch {
  flex-shrink: 0;
  width: 3rem;
  height: 0.875rem;
  border-radius: 2px;
  border: 1px solid var(--border-soft);
}

/* ── Description block ── */
.dd__description {
  font-family: var(--font-barlow);
  font-size: var(--fs-lg);
  line-height: 1.55;
  color: var(--ink-4);
  margin-bottom: var(--space-12);
  max-width: 44rem;
}

.dd__description p {
  margin: 0 0 var(--space-3);
}

.dd__footer-text {
  color: var(--ink-7);
  font-size: 0.82rem;
  font-style: italic;
}

/* ── Tiers table ── */
.dd__tiers {
  margin-bottom: var(--space-12);
}

.dd__tier-section {
  margin-bottom: var(--space-8);
}

.dd__tier-section:last-child {
  margin-bottom: 0;
}

.dd__tier-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-barlow);
  font-size: var(--fs-md);
  table-layout: fixed;
}

.dd__col-label {
  width: 5rem;
}
.dd__col-angle {
  width: 5rem;
}
.dd__col-facets {
  width: auto;
}
.dd__col-notes {
  width: 14rem;
}

.dd__tier-table th,
.dd__tier-table td {
  text-align: left;
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid var(--border-row);
  vertical-align: top;
}

.dd__tier-table th {
  font-weight: var(--fw-medium);
  color: var(--ink-7);
  font-size: var(--fs-sm);
  letter-spacing: var(--tracking-base);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border-strong);
}

.dd__tier-table tr:last-child td {
  border-bottom: none;
}

.dd__tier-label {
  font-weight: var(--fw-medium);
  color: var(--ink-1);
  white-space: nowrap;
}

.dd__tier-num {
  font-variant-numeric: tabular-nums;
  color: var(--ink-4);
  white-space: nowrap;
}

.dd__tier-notes {
  color: var(--ink-6);
  font-size: 0.82rem;
}

/* ── Facet chips ── */
.dd__facet-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}

.dd__chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.6rem;
  /* Asymmetric vertical padding — monospace digits have no descenders
     but the line-box reserves descender space, making the glyphs sit low
     in the box. Extra top padding visually recenters them. */
  padding: 0.22rem 0.4rem 0.08rem;
  font-family: var(--font-overpass-mono);
  font-size: 0.78rem;
  color: #3a3a3a;
  background: var(--paper-4);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  line-height: 1;
  cursor: pointer;
  transition:
    background 80ms var(--ease),
    border-color 80ms var(--ease),
    color 80ms var(--ease);
}

/* Cross-table highlight when any chip with the same facet index is hovered.
   Wins over .dd__chip--wrap via extra specificity (same-class selector). */
.dd__chip.dd__chip--hl {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  color: var(--paper-0);
}

.dd__chip--noted::after {
  content: "";
  position: absolute;
  top: 2px;
  right: 2px;
  width: 4px;
  height: 4px;
  background: var(--note-dot);
  border-radius: 50%;
}

/* Gear wrap-around position (index 0 ≡ N). Same digits, different tone. */
.dd__chip--wrap {
  background: var(--paper-7);
  border-color: var(--border-wrap);
}

/* ── Placeholder ── */
.dd__placeholder {
  font-family: var(--font-barlow);
  font-size: var(--fs-md);
  color: var(--ink-9);
  padding: var(--space-8) 0;
}

/* ── Wireframes ── */
.dd__wireframes {
  margin-bottom: var(--space-12);
}

.dd__wireframe-layout {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  max-width: 50%;
}

.dd__wireframe-iso {
  flex: 1;
  min-width: 0;
  display: block;
}

.dd__wireframe-grid {
  flex: 2;
  min-width: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.dd__wireframe-grid img {
  width: 100%;
  display: block;
}

/* ── Section titles ── */
.dd__section-title {
  font-family: var(--font-playfair-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-medium);
  color: var(--ink-1);
  margin: 0 0 var(--space-4);
}

/* ── Optimization ── */
.dd__optimization {
  margin-bottom: var(--space-12);
}

.dd__optimization-subtitle {
  font-family: var(--font-barlow);
  font-size: var(--fs-md);
  color: var(--ink-7);
  margin: 0 0 var(--space-6);
}

/* ── Mobile ── */
@media screen and (max-width: 800px) {
  .dd {
    margin-left: 0;
    padding: var(--space-6) var(--space-5) 8rem;
  }

  .dd__hero {
    flex-direction: column;
  }

  .dd__video-wrap {
    width: 100%;
    max-width: 20rem;
  }

  .dd__stats-layout {
    flex-direction: column;
  }

  .dd__stats {
    grid-template-columns: auto 1fr;
  }

  .dd__wireframe-layout {
    flex-direction: column;
  }
}