/**
 * Library page layout and card microinteractions.
 */

.library-page {
  padding: var(--mf-space-8) 0;
}

.library-hero {
  margin-bottom: clamp(2.5rem, 6vw, 3.75rem);
  max-width: 36rem;
  padding-top: 0.5rem;
}

.library-hero__title {
  margin-top: 0.85rem;
  font-size: clamp(3.15rem, 8.5vw, 5.75rem);
  max-width: 8ch;
  letter-spacing: var(--mf-tracking-display);
}

.library-hero .mf-lede {
  margin-top: 1.25rem;
}

.library-filters {
  display: grid;
  gap: 1.35rem;
  margin-bottom: 2.5rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--mf-border);
}

.library-filters__row--extended {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.library-filters__status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
}

.library-filters__clear {
  margin-left: auto;
}

.library-filters__clear[hidden] {
  display: none;
}

.library-filters[hidden] {
  display: none;
}

.library-filters.is-loading {
  opacity: 0.72;
  transition: opacity var(--mf-duration) var(--mf-ease);
}

.library-more {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
}

.library-filters__group {
  display: grid;
  gap: 0.45rem;
}

.library-select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--mf-muted) 50%),
    linear-gradient(135deg, var(--mf-muted) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2rem;
}

.library-filters__count {
  min-height: 1em;
  color: var(--mf-faint);
}

.library-grid {
  align-items: start;
}

.library-grid__item.is-hidden {
  display: none;
}

.library-empty {
  margin-top: 3rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--mf-border-soft);
  max-width: 28rem;
}

.library-empty p {
  color: var(--mf-muted);
  margin-top: 0.75rem;
}

.library-empty[hidden] {
  display: none;
}

.library-empty--state {
  max-width: 36rem;
  border-top: 0;
  padding: 4rem 0 5rem;
}

.library-empty__title {
  margin: 0.35rem 0 0;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

.library-empty__copy {
  margin-top: 1rem;
  color: var(--mf-muted);
  max-width: 32ch;
}

.library-empty__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Card */
.asset-card {
  position: relative;
  display: grid;
  gap: 0.95rem;
}

.asset-card__link {
  display: grid;
  gap: 0.9rem;
  color: inherit;
}

.asset-card__link:hover {
  color: inherit;
}

.asset-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--mf-border);
  border-radius: var(--mf-radius);
  background: var(--mf-surface-alt);
  transition:
    border-color var(--mf-duration) var(--mf-ease),
    transform var(--mf-duration-slow) var(--mf-ease);
  transform: translateZ(0);
}

.asset-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--mf-duration-slow) var(--mf-ease);
}

.asset-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 58%, rgba(5, 5, 5, 0.4));
  opacity: 0;
  transition: opacity var(--mf-duration) var(--mf-ease);
  pointer-events: none;
}

.asset-card__body {
  display: grid;
  gap: 0.4rem;
}

.asset-card__title {
  transition: color var(--mf-duration) var(--mf-ease);
}

.asset-card__copy {
  justify-self: start;
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition:
    opacity var(--mf-duration) var(--mf-ease),
    transform var(--mf-duration) var(--mf-ease),
    border-color var(--mf-duration) var(--mf-ease),
    background var(--mf-duration) var(--mf-ease),
    color var(--mf-duration) var(--mf-ease);
}

.asset-card.is-copied .asset-card__copy,
.asset-card__copy.is-copied {
  border-color: var(--mf-accent-line);
  color: var(--mf-accent);
}

@media (hover: hover) and (pointer: fine) {
  .asset-card:hover .asset-card__media,
  .asset-card:focus-within .asset-card__media {
    border-color: var(--mf-border-strong);
    transform: scale(1.015);
  }

  .asset-card:hover .asset-card__media img,
  .asset-card:focus-within .asset-card__media img {
    transform: scale(1.03);
  }

  .asset-card:hover .asset-card__overlay,
  .asset-card:focus-within .asset-card__overlay {
    opacity: 1;
  }

  .asset-card:hover .asset-card__title,
  .asset-card:focus-within .asset-card__title {
    color: #ffffff;
  }

  .asset-card:hover .asset-card__copy,
  .asset-card:focus-within .asset-card__copy {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

@media (hover: none), (pointer: coarse) {
  .asset-card__copy {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .asset-card__media,
  .asset-card__media img,
  .asset-card__copy {
    transition: none;
  }

  .asset-card:hover .asset-card__media,
  .asset-card:focus-within .asset-card__media {
    transform: none;
  }

  .asset-card:hover .asset-card__media img,
  .asset-card:focus-within .asset-card__media img {
    transform: none;
  }
}

/* Demo preview fills — structure over accent fog */
.viz-feat-a {
  background: linear-gradient(135deg, #101010, #151515 42%, rgba(255, 255, 255, 0.05));
}
.viz-feat-b {
  background:
    linear-gradient(180deg, #0e0e0e, #171717),
    repeating-linear-gradient(90deg, transparent 0 24px, rgba(255, 255, 255, 0.028) 24px 25px);
}
.viz-feat-c {
  background: radial-gradient(circle at 50% 48%, rgba(255, 255, 255, 0.07), transparent 44%), #0b0b0b;
}
.viz-feat-d {
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.07), transparent 28%),
    radial-gradient(circle at 80% 70%, rgba(200, 245, 66, 0.08), transparent 32%),
    #0a0a0a;
}
.viz-feat-e {
  background: linear-gradient(160deg, #121212 0%, #0b0b0b 52%, #141210 100%);
}
.viz-feat-f {
  background: repeating-linear-gradient(180deg, #141414 0 18%, #0d0d0d 18% 20%);
}
.viz-feat-g {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.04), transparent 40%), #111;
}
.viz-feat-h {
  background: linear-gradient(90deg, #0f0f0f 0 35%, #161616 35% 100%);
}

@media (min-width: 720px) {
  .library-filters__row,
  .library-filters__row--extended {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .library-filters__row {
    grid-template-columns: repeat(4, 1fr);
  }

  .library-filters__row--extended {
    grid-template-columns: repeat(4, 1fr);
  }

  .library-grid.mf-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .library-filters__row--extended {
    grid-template-columns: repeat(4, 1fr);
  }

  .library-grid.mf-grid--2 {
    grid-template-columns: repeat(3, 1fr);
  }
}