/*
 * Styles for the generated "Built-in Sprites" and "Built-in Sounds" pages.
 * Only custom ba-/bs- elements are targeted, never Hyperbook's own classes.
 */

.ba-filter {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 0.75rem 0;
  margin-bottom: 0.5rem;
  background: var(--color-background, #fff);
}

.ba-search {
  flex: 1 1 16rem;
  min-width: 0;
  padding: 0.5rem 0.75rem;
  font: inherit;
  color: inherit;
  background: transparent;
  border: 2px solid rgba(128, 128, 128, 0.4);
  border-radius: 0.4rem;
}

.ba-search:focus {
  outline: none;
  border-color: var(--color-brand, #4e7896);
}

.ba-count {
  font-size: 0.85rem;
  opacity: 0.7;
  white-space: nowrap;
}

.ba-group[hidden],
.ba-tile[hidden],
.bs-row[hidden] {
  display: none;
}

/* ----------------------------------------------------------- sprite grid */

.ba-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr));
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.ba-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.25rem;
  font: inherit;
  color: inherit;
  cursor: pointer;
  background: transparent;
  border: 2px solid transparent;
  border-radius: 0.5rem;
}

.ba-tile:hover,
.ba-tile:focus-visible {
  outline: none;
  border-color: var(--color-brand, #4e7896);
}

/*
 * A checkerboard keeps white and transparent sprites visible in both the
 * light and the dark theme.
 */
.ba-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 5.5rem;
  overflow: hidden;
  border-radius: 0.35rem;
  background-color: #f2f2f2;
  background-image:
    linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
    linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

/*
 * Each sprite is a window onto its sheet: the box is exactly the size of the
 * sprite and the sheet is shifted so the right part shows through.
 */
.ba-sprite {
  display: block;
  flex: none;
  background-repeat: no-repeat;
}

.ba-sheet-platformer {
  background-image: url("/builtin/platformer.png");
}

.ba-sheet-jumper {
  background-image: url("/builtin/jumper.png");
}

.ba-sheet-space_shooter {
  background-image: url("/builtin/space_shooter.png");
}

.ba-sheet-tappy_plane {
  background-image: url("/builtin/tappy_plane.png");
}

.ba-name {
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  line-height: 1.2;
  text-align: center;
  overflow-wrap: anywhere;
  opacity: 0.85;
}

/* ------------------------------------------------------------ sound list */

.bs-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.25rem;
  margin-bottom: 2rem;
}

.bs-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.15rem 0;
}

.bs-play {
  flex: none;
  width: 2rem;
  height: 2rem;
  padding: 0;
  cursor: pointer;
  color: inherit;
  background: transparent;
  border: 2px solid rgba(128, 128, 128, 0.4);
  border-radius: 50%;
}

.bs-play::before {
  content: "▶";
  font-size: 0.7rem;
  line-height: 1;
}

.bs-play:hover,
.bs-play:focus-visible {
  outline: none;
  border-color: var(--color-brand, #4e7896);
}

.bs-play[data-playing="true"]::before {
  content: "■";
}

.bs-name {
  flex: 1 1 auto;
  padding: 0.25rem 0.35rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  text-align: left;
  color: inherit;
  cursor: pointer;
  background: transparent;
  border: 2px solid transparent;
  border-radius: 0.3rem;
  overflow-wrap: anywhere;
}

.bs-name:hover,
.bs-name:focus-visible {
  outline: none;
  border-color: var(--color-brand, #4e7896);
}

/* --------------------------------------------------------------- shared */

.ba-empty {
  padding: 2rem 0;
  text-align: center;
  opacity: 0.7;
}

/* Briefly shown after a name has been copied to the clipboard. */
.ba-copied {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  z-index: 50;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: #fff;
  background: #333;
  border-radius: 0.4rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.ba-copied[data-visible="true"] {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .ba-copied {
    transition: none;
  }
}