/* Level map (universes#index): one universe tile per row (art beside its grid of up to 10
   level tiles, 5 per row), stacked on narrow screens. */

.worlds {
  display: grid;
  gap: var(--gutter);
  margin: 0;
  padding: 0;
  list-style: none;
}

.world {
  display: grid;
  grid-template-columns: minmax(15rem, 19rem) minmax(0, 1fr);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-lg);
  background: var(--glass-2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 32px var(--accent-soft);
  overflow: hidden;
}

.world.is-locked {
  border-color: var(--hairline);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* Universe art, scrimmed toward the bottom so the name stays readable. */
.world__art {
  position: relative;
  isolation: isolate;
  display: grid;
  align-content: space-between;
  gap: var(--space-md);
  min-height: 10.5rem;
  padding: var(--space-md) var(--space-lg);
}

.world__art::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(8, 11, 17, 0.15) 0%, rgba(8, 11, 17, 0.35) 45%, rgba(15, 21, 35, 0.95) 100%),
    linear-gradient(var(--universe-tint, transparent), var(--universe-tint, transparent)),
    var(--universe-art, none) center / cover no-repeat,
    var(--universe-deep, var(--panel));
  background-blend-mode: normal, color, normal, normal;
}

.world.is-locked .world__art::before {
  filter: grayscale(0.85) brightness(0.55);
}

.world__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.world__name {
  margin: 0;
  color: var(--text-strong);
  font: 600 1.75rem/2.25rem var(--font-display);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.7);
  text-wrap: balance;
}

.world.is-locked .world__name {
  color: var(--text-muted);
}

.world__empty {
  align-self: center;
  margin: 0;
  padding: var(--space-lg);
  color: var(--text-muted);
  font: 400 0.875rem/1.375rem var(--font-ui);
}

.world__levels {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-content: start;
  gap: var(--space-sm);
  margin: 0;
  padding: var(--space-md);
  list-style: none;
}

/* Level tile: a box with the number, stars, name and state. */
.level-tile {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 0.375rem;
  height: 100%;
  min-height: 6.25rem;
  padding: var(--space-sm) 0.75rem 0.625rem;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 60%), rgba(8, 11, 17, 0.55);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s, transform 0.2s;
}

.level-tile__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
}

.level-tile__number {
  color: var(--text-strong);
  font: 600 1.25rem/1.75rem var(--font-display);
}

.level-tile .stars {
  gap: 0;
}

.level-tile .stars .icon {
  width: 0.75rem;
  height: 0.75rem;
}

.level-tile__name {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: var(--text-strong);
  font: 600 0.8125rem/1.125rem var(--font-ui);
}

.level-tile__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-muted);
  font: 700 0.625rem/0.875rem var(--font-ui);
  letter-spacing: var(--tracking-label-sm);
  text-transform: uppercase;
}

a.level-tile:hover,
a.level-tile:focus-visible {
  border-color: var(--accent);
  background-color: color-mix(in srgb, var(--accent) 18%, rgba(8, 11, 17, 0.55));
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}

.level-tile.is-completed {
  border-color: var(--accent-line);
  background-color: color-mix(in srgb, var(--accent) 12%, rgba(8, 11, 17, 0.55));
}

.level-tile.is-completed .level-tile__status {
  color: var(--accent-bright);
}

/* The next level to play glows. */
.level-tile.is-current {
  border-color: var(--accent-bright);
  box-shadow: 0 0 18px var(--accent-glow);
}

.level-tile.is-current .level-tile__status {
  color: var(--amber);
}

.level-tile.is-locked {
  cursor: not-allowed;
  border-color: var(--hairline);
  background: rgba(8, 11, 17, 0.4);
}

.level-tile.is-locked .level-tile__number,
.level-tile.is-locked .level-tile__name {
  color: var(--text-muted);
}

.level-tile.is-locked .level-tile__status {
  color: var(--text-sealed);
}

/* Narrow screens: the art goes on top of the level grid (still 5 per row, 2 on phones). */
@media (max-width: 1023px) {
  .world {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 767px) {
  .world__art {
    min-height: 8rem;
    padding: var(--space-md);
  }

  .world__name {
    font-size: 1.375rem;
    line-height: 1.875rem;
  }

  .world__levels {
    gap: 0.375rem;
    padding: var(--space-sm);
  }

  .level-tile {
    min-height: 5.75rem;
    padding: 0.375rem 0.5rem 0.5rem;
  }

  .level-tile__name {
    font-size: 0.75rem;
    line-height: 1rem;
  }
}

@media (max-width: 639px) {
  .world__levels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  a.level-tile:hover,
  a.level-tile:focus-visible {
    transform: none;
  }
}