/* Widgets: chart, why-cards, morph, stack, economics, local UI gallery */

/* Hardware class cards in Machine */
.class-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1.3rem 0;
}

.class-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.15rem 1.15rem;
}

.class-card h3 {
  margin: 0 0 0.45rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
}

.class-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Chart */
.chart-wrap {
  margin-top: 1.6rem;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.35rem 1.15rem 1.1rem;
  border-radius: var(--radius-lg);
}

.chart-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 38rem;
}

#intel-chart {
  width: 100%;
  height: auto;
  overflow: visible;
}

.chart-axis {
  fill: var(--muted);
  font-size: 11px;
  font-family: var(--font-sans);
}

.chart-axis-month {
  fill: var(--muted);
  font-size: 11px;
  font-family: var(--font-sans);
}

.chart-axis-year {
  fill: var(--ink);
  font-size: 12px;
  font-weight: 650;
  font-family: var(--font-sans);
}

.chart-point-label {
  fill: var(--ink);
  font-size: 10.5px;
  font-weight: 600;
  font-family: var(--font-sans);
}

.chart-grid {
  stroke: var(--line);
  stroke-width: 1;
}

.chart-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.2;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.chart-area {
  fill: var(--accent);
  opacity: 0.1;
}

.chart-point {
  fill: var(--surface);
  stroke: var(--accent);
  stroke-width: 2;
  cursor: pointer;
}

.chart-point:hover,
.chart-point:focus,
.chart-point.is-on {
  fill: var(--accent);
}

.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--ink);
  color: var(--page);
  border: 0;
  padding: 0.65rem 0.75rem;
  font-size: 0.82rem;
  max-width: 17rem;
  opacity: 0;
  transform: translate(-20%, -120%);
  transition: opacity 0.15s ease;
  z-index: 2;
  border-radius: var(--radius);
}

.chart-tooltip.is-on {
  opacity: 1;
}

.chart-tooltip strong {
  display: block;
  margin-bottom: 0.2rem;
}

.chart-panel {
  position: relative;
}

.chart-detail {
  margin-top: 0.85rem;
  padding: 0.9rem 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
  min-height: 0;
}

.chart-detail:empty {
  display: none;
}

.sr-table-wrap {
  margin-top: 0.4rem;
  overflow-x: auto;
}

/* Why it matters — expanding cards */
.why-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.7rem;
}

.why-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 0;
  min-width: 0;
  text-align: left;
}

.why-card__btn {
  width: 100%;
  background: transparent;
  border: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  padding: 1.15rem 1.1rem 1.1rem;
  min-height: 2.75rem;
}

.why-card__btn h3 {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent-ink);
}

.why-card__btn p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.why-card__body {
  padding: 0 1.1rem 1.15rem;
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.55;
}

.why-card__body[hidden] {
  display: none;
}

.why-card.is-open {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.why-card.is-open .why-card__btn p {
  display: none;
}

/* Local vs cloud morph */
.compare-toggle {
  display: inline-flex;
  background: var(--surface-2);
  border-radius: 999px;
  padding: 0.22rem;
  gap: 0.15rem;
  margin: 0 0 1.4rem;
}

.compare-toggle button {
  font: inherit;
  font-size: 0.88rem;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.5rem 1rem;
  min-height: 2.5rem;
  border-radius: 999px;
  cursor: pointer;
}

.compare-toggle button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 4px rgba(26, 24, 20, 0.08);
}

.morph-panel h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--ink);
}

.morph-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.morph-panel li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.98rem;
}

.morph-note {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 38rem;
}

.hybrid {
  margin-top: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 140px;
  border-radius: var(--radius-lg);
  max-width: 28rem;
}

.hybrid svg {
  width: 100%;
  height: 100px;
}

.hybrid p {
  margin: 0.7rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

/* Stack layers */
.stack-layers {
  display: grid;
  gap: 0.45rem;
  margin: 1.2rem 0;
}

.stack-layer {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.stack-layer__btn {
  width: 100%;
  display: grid;
  grid-template-columns: 2.2rem 1fr auto;
  gap: 0.7rem;
  align-items: center;
  text-align: left;
  background: transparent;
  border: 0;
  font: inherit;
  color: inherit;
  padding: 0.85rem 1rem;
  min-height: 3rem;
  cursor: pointer;
}

.stack-layer__btn b {
  font-weight: 650;
  letter-spacing: -0.02em;
}

.stack-layer__btn span {
  color: var(--muted);
  font-size: 0.88rem;
}

.stack-layer__idx {
  font-variant-numeric: tabular-nums;
  color: var(--accent-ink);
  font-size: 0.82rem;
}

.stack-layer__body {
  padding: 0 1rem 1.05rem 3.9rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.stack-layer__body[hidden] {
  display: none;
}

.stack-layer.is-open {
  border-color: var(--accent);
  background: var(--accent-wash);
}

.stack-layer.is-open .stack-layer__btn {
  color: var(--ink);
}

/* Economics meters */
.meters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.1rem;
}

.meters button {
  font: inherit;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.5rem 0.95rem;
  min-height: 2.75rem;
  cursor: pointer;
  color: var(--muted);
}

.meters button[aria-pressed="true"] {
  color: var(--ink);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.meter-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.2rem 1.25rem;
  min-height: 8rem;
}

.meter-panel h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--ink);
}

.meter-panel p {
  margin: 0;
  color: var(--muted);
}

.price-figure {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
  margin: 0.35rem 0 0.5rem;
  color: var(--ink);
}

.price-figure small {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* Local model UI gallery */
.ui-gallery {
  margin: 1.8rem 0 0.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.15rem 1.2rem;
}

.ui-gallery__head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 40rem;
}

.ui-gallery__grid {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}

.ui-shot {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--page);
  cursor: zoom-in;
  overflow: hidden;
  text-align: left;
  font: inherit;
  color: inherit;
  min-height: 2.75rem;
}

.ui-shot:hover,
.ui-shot:focus-visible {
  border-color: var(--accent);
}

.ui-shot img {
  width: 100%;
  height: 9.5rem;
  object-fit: cover;
  object-position: top center;
  background: var(--surface-2);
}

.ui-shot__cap {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.65rem 0.8rem 0.75rem;
}

.ui-shot__cap strong {
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.ui-shot__cap span {
  font-size: 0.72rem;
  color: var(--muted);
}

.ui-lightbox {
  border: 0;
  padding: 0.9rem 0.9rem 1rem;
  max-width: min(96vw, 1080px);
  width: 100%;
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.ui-lightbox::backdrop {
  background: rgba(26, 24, 20, 0.72);
}

.ui-lightbox figure {
  margin: 0;
}

.ui-lightbox img {
  width: 100%;
  height: auto;
  max-height: min(78vh, 820px);
  object-fit: contain;
  background: var(--ink);
  border-radius: var(--radius);
}

.ui-lightbox figcaption {
  margin: 0.7rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.ui-lightbox__close {
  font: inherit;
  font-size: 0.82rem;
  float: right;
  margin: 0 0 0.55rem 0.75rem;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  min-height: 2.5rem;
  cursor: pointer;
  color: var(--ink);
}

.ui-lightbox__close:hover {
  border-color: var(--accent);
  color: var(--accent-ink);
}

/* Reveal (subtle, skipped if reduced motion) */
[data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Mobile */
@media (max-width: 980px) {
  .hero__grid,
  .contrast,
  .why-grid,
  .class-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    height: 220px;
    min-height: 200px;
    order: -1;
  }

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

  .chapter-num {
    display: none;
  }

  .compare div {
    grid-template-columns: minmax(8rem, 12rem) 1fr auto;
  }

  .narrative ol {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 0 1.15rem;
    gap: 0.4rem;
  }

  .narrative li:not(:last-child)::after {
    display: none;
  }

  .ui-gallery__grid {
    grid-template-columns: 1fr;
  }

  .stack-layer__body {
    padding-left: 1rem;
  }

  .size-row {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .why-grid {
    grid-template-columns: 1fr;
  }

}