/* PHI OS WPR-D public production surfaces.
   Uses frozen PDS tokens; does not redefine Runtime or authority semantics. */

.wpr-production-band {
  padding: clamp(3rem, 7vw, 6rem) 0;
}
.wpr-production-band--soft {
  background: color-mix(in srgb, var(--phi-surface-subtle) 72%, transparent);
}
.wpr-production-heading {
  display: grid;
  gap: var(--phi-space-4);
  max-width: 54rem;
  margin-bottom: var(--phi-space-10);
}
.wpr-production-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: var(--phi-space-6);
}
.wpr-book-card,
.wpr-visual-card,
.wpr-volume-panel,
.wpr-part-card,
.wpr-runtime-card {
  border: 1px solid var(--phi-border-subtle);
  border-radius: var(--phi-radius-md);
  background: var(--phi-surface-solid);
  box-shadow: var(--phi-shadow-sm);
}
.wpr-book-card {
  display: grid;
  grid-template-columns: minmax(6rem, 35%) 1fr;
  min-height: 12rem;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
}
.wpr-book-card:focus-visible,
.wpr-visual-card:focus-visible,
.wpr-volume-panel a:focus-visible {
  outline: var(--phi-focus-width) solid var(--phi-action-primary);
  outline-offset: var(--phi-focus-offset);
}
.wpr-book-card__visual,
.wpr-volume-panel__visual,
.wpr-book-cover > div {
  display: grid;
  place-items: center;
  min-height: 10rem;
  background: var(--phi-surface-subtle);
  overflow: hidden;
}
.wpr-book-card__visual img,
.wpr-volume-panel__visual img,
.wpr-book-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.wpr-book-card__body {
  display: grid;
  align-content: center;
  gap: var(--phi-space-2);
  padding: var(--phi-space-5);
}
.wpr-book-card__body strong {
  font-family: var(--phi-font-display);
  font-size: var(--phi-text-xl);
}
.wpr-book-card__body span,
.wpr-book-card__body small {
  color: var(--phi-text-secondary);
}
.wpr-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: var(--phi-tracking-label);
  font-size: var(--phi-text-xs);
  font-weight: 600;
}
.wpr-volume-fallback {
  width: 100%;
  min-height: 10rem;
  display: grid;
  place-items: center;
  align-content: center;
  gap: var(--phi-space-2);
  font-family: var(--phi-font-display);
  background:
    radial-gradient(circle at 35% 25%, rgba(255,255,255,.7), transparent 42%),
    linear-gradient(145deg, var(--phi-surface-solid), var(--phi-surface-subtle));
}
.wpr-volume-fallback > span {
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: .8;
}
.wpr-volume-fallback > strong {
  font-family: var(--phi-font-mono);
  letter-spacing: .18em;
  font-size: var(--phi-text-sm);
}
.wpr-volume-fallback--hero {
  min-height: clamp(19rem, 45vw, 34rem);
}
.wpr-volume-1 { --wpr-volume-accent: #9b7a27; }
.wpr-volume-2 { --wpr-volume-accent: #6553a6; }
.wpr-volume-3 { --wpr-volume-accent: #9a668f; }
.wpr-volume-4 { --wpr-volume-accent: #25755e; }
.wpr-volume-5 { --wpr-volume-accent: #1f7f91; }
.wpr-book-card,
.wpr-volume-panel,
.wpr-book-hero {
  border-top: 4px solid var(--wpr-volume-accent, var(--phi-action-knowledge));
}
.wpr-visual-card {
  overflow: hidden;
  color: inherit;
  text-decoration: none;
}
.wpr-visual-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
  background: var(--phi-surface-subtle);
}
.wpr-visual-card > span {
  display: grid;
  gap: var(--phi-space-1);
  padding: var(--phi-space-4);
}
.wpr-visual-card small,
.wpr-status,
.wpr-production-state {
  color: var(--phi-text-secondary);
}
.wpr-runtime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: var(--phi-space-4);
}
.wpr-runtime-card {
  padding: var(--phi-space-6);
}
.wpr-runtime-card h3 {
  margin-top: var(--phi-space-2);
}
.wpr-volume-panel {
  display: grid;
  grid-template-columns: minmax(11rem, 30%) 1fr;
  overflow: hidden;
}
.wpr-volume-panel > div {
  padding: var(--phi-space-8);
}
.wpr-books-stack {
  display: grid;
  gap: var(--phi-space-8);
}
.wpr-book-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, .65fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.wpr-book-cover {
  margin: 0;
}
.wpr-book-cover figcaption {
  margin-top: var(--phi-space-3);
  color: var(--phi-text-secondary);
  font-size: var(--phi-text-sm);
}
.wpr-parts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--phi-space-4);
  margin-top: var(--phi-space-8);
}
.wpr-part-card,
.wpr-cross-volume {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--phi-space-4);
  align-items: start;
  padding: var(--phi-space-5);
}
.wpr-part-card__number,
.wpr-cross-volume > span {
  font-family: var(--phi-font-mono);
  color: var(--phi-text-secondary);
}
.wpr-cross-volume {
  border: 1px dashed var(--phi-border-strong);
  border-radius: var(--phi-radius-md);
}
.wpr-academy-production-note {
  margin-top: var(--phi-space-6);
  padding: var(--phi-space-4) var(--phi-space-5);
  border-left: 4px solid var(--phi-action-knowledge);
  background: var(--phi-surface-subtle);
}
@media (max-width: 768px) {
  .wpr-book-card,
  .wpr-volume-panel,
  .wpr-book-hero__grid {
    grid-template-columns: 1fr;
  }
  .wpr-book-card__visual {
    min-height: 14rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  .wpr-book-card,
  .wpr-visual-card {
    scroll-behavior: auto;
  }
}