/* human-adaptive.css — Human Adaptive Interaction chapter demos */

.hai-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

.hai-matrix__card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: var(--surface);
}

.hai-matrix__card h3 {
  margin: 0 0 var(--space-3);
  font-size: var(--text-md);
  letter-spacing: var(--tracking-section);
}

.hai-matrix__card dl {
  margin: 0;
  display: grid;
  gap: 8px;
}

.hai-matrix__card dt {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.hai-matrix__card dd {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

.hai-reach {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

@media (max-width: 720px) {
  .hai-reach {
    grid-template-columns: 1fr;
  }
}

.hai-reach__device {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: var(--surface);
}

.hai-reach__device h3 {
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
}

.hai-heatmap {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 320px;
  margin-inline: auto;
  border-radius: 28px;
  border: 2px solid var(--border-strong);
  overflow: hidden;
  background: var(--surface-subtle);
}

.hai-heatmap--desktop {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  max-height: 220px;
}

.hai-heatmap--tablet {
  aspect-ratio: 3 / 4;
  max-height: 260px;
  border-radius: 18px;
}

.hai-heatmap__glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hai-heatmap--desktop .hai-heatmap__glow {
  background:
    radial-gradient(ellipse 42% 38% at 50% 42%, rgba(22, 119, 255, 0.55), transparent 70%),
    radial-gradient(ellipse 28% 24% at 72% 58%, rgba(65, 147, 255, 0.28), transparent 70%);
}

.hai-heatmap--tablet .hai-heatmap__glow {
  background:
    radial-gradient(ellipse 48% 36% at 50% 62%, rgba(22, 119, 255, 0.5), transparent 72%),
    radial-gradient(ellipse 30% 22% at 50% 78%, rgba(65, 147, 255, 0.35), transparent 70%);
}

.hai-heatmap--phone-left .hai-heatmap__glow {
  background:
    radial-gradient(ellipse 55% 42% at 28% 78%, rgba(22, 119, 255, 0.62), transparent 68%),
    radial-gradient(ellipse 40% 30% at 42% 88%, rgba(65, 147, 255, 0.35), transparent 70%);
}

.hai-heatmap--phone-right .hai-heatmap__glow {
  background:
    radial-gradient(ellipse 55% 42% at 72% 78%, rgba(22, 119, 255, 0.62), transparent 68%),
    radial-gradient(ellipse 40% 30% at 58% 88%, rgba(65, 147, 255, 0.35), transparent 70%);
}

.hai-heatmap__label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.hai-attention-demo {
  position: relative;
  margin: var(--space-5) 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
}

.hai-attention-demo__zone {
  position: sticky;
  top: 30%;
  height: 0;
  z-index: 2;
  pointer-events: none;
}

.hai-attention-demo__zone span {
  display: block;
  margin: 0 8%;
  height: 42vh;
  border: 1px dashed color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--accent-soft) 50%, transparent);
}

.hai-attention-track {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  max-height: 420px;
  overflow: auto;
  scroll-snap-type: y proximity;
}

.hai-card {
  scroll-snap-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: var(--surface-subtle);
  transform: scale(0.97);
  opacity: 0.55;
  transition:
    transform 420ms var(--ease-emphasized),
    opacity 420ms var(--ease-standard),
    border-color 320ms var(--ease-standard),
    box-shadow 420ms var(--ease-standard);
}

.hai-card.is-visible {
  opacity: 0.72;
}

.hai-card.is-attention {
  opacity: 1;
  transform: scale(1);
  border-color: var(--accent);
  box-shadow: 0 18px 40px rgba(16, 17, 20, 0.08);
}

.hai-card.is-engaged,
.hai-card.is-activated {
  opacity: 1;
  transform: scale(1.01);
  border-color: var(--accent-strong);
}

.hai-card__meta {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 0 0 var(--space-2);
}

.hai-card h3 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
}

.hai-card p {
  margin: 0;
}

.hai-haptics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

.hai-haptics button {
  min-height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.hai-haptics button:hover {
  border-color: var(--border-strong);
  background: var(--surface-subtle);
}

.hai-status {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin: 0 0 var(--space-4);
}

.hai-manifesto {
  margin: var(--space-7) 0;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent-soft) 80%, transparent), transparent),
    var(--surface);
  border: 1px solid var(--border);
}

.hai-manifesto h2 {
  margin-top: 0;
}

.hai-manifesto__line {
  display: grid;
  gap: 4px;
  margin: 0 0 var(--space-4);
}

.hai-manifesto__line strong {
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-section);
}

.hai-manifesto__thesis {
  margin: var(--space-5) 0 0;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--text-primary);
}

.hai-gesture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

.hai-gesture {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--surface);
}

.hai-gesture h3 {
  margin: 0 0 8px;
  font-size: var(--text-md);
}

.hai-gesture p {
  margin: 0;
  font-size: var(--text-sm);
}

.hai-gesture--avoid {
  border-color: color-mix(in srgb, var(--danger) 35%, var(--border));
}

.hai-sensor-note {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-3);
}