/* ============================================================
   PROJECT ISLAND — persistent selected-work navigation
   ============================================================ */

.project-island {
  position: fixed;
  right: 0;
  left: 0;
  bottom: clamp(0.75rem, 2.5vw, 1.75rem);
  z-index: 900;
  display: flex;
  align-items: stretch;
  gap: var(--space-2);
  width: max-content;
  max-width: calc(100vw - 1.5rem);
  margin-inline: auto;
  padding: 0.625rem;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: 1.75rem;
  contain: layout paint style;
  background: rgba(251, 250, 247, 0.985);
  box-shadow: 0 14px 34px rgba(17, 17, 17, 0.11),
              0 3px 9px rgba(17, 17, 17, 0.05);
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  touch-action: pan-x pan-y;
  transition: opacity 180ms var(--ease-out),
              transform 260ms var(--ease-out),
              visibility 0s linear;
  will-change: transform, opacity;
  scrollbar-width: none;
}

.project-island::-webkit-scrollbar {
  display: none;
}

/* Scroll-activity dock: hidden at rest, present only while the page is moving. */
.project-island.is-scroll-managed {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, calc(100% + 2rem), 0);
  transition-delay: 0s, 0s, 260ms;
}

.project-island.is-scroll-managed.is-scroll-active {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translate3d(0, 0, 0);
  transition-delay: 0s;
}

.project-island__context {
  display: flex;
  align-items: stretch;
  gap: 0.375rem;
}

.project-island__item {
  display: flex;
  flex: 0 0 4.5rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  min-height: 4.75rem;
  padding: 0.375rem;
  border-radius: 1.125rem;
  color: #6f6f6f;
  transition: color var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.project-island__item:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-raised);
  transform: translateY(-1px);
}

.project-island__item.is-active {
  color: var(--color-text-primary);
}

.project-island__label {
  max-width: 100%;
  overflow: hidden;
  font-size: 0.6875rem;
  font-weight: var(--weight-regular);
  line-height: 1;
  letter-spacing: 0.01em;
  text-overflow: ellipsis;
  text-transform: lowercase;
  white-space: nowrap;
}

.project-island__icon {
  position: relative;
  display: flex;
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 0.875rem;
  background: #eeeeee;
}

.project-island__item.is-active .project-island__icon {
  box-shadow: 0 0 0 2px var(--color-surface),
              0 0 0 4px var(--color-text-primary),
              0 5px 12px rgba(17, 17, 17, 0.2);
}

/* High-density project images render directly instead of through CSS backgrounds. */
.project-island__icon--liminal,
.project-island__icon--magnitai,
.project-island__icon--kodara {
  background-color: var(--color-surface-raised);
}

.project-island__icon img {
  display: block;
  max-width: none;
  flex: 0 0 auto;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
}

.project-island__icon--liminal img {
  width: 130%;
  height: 130%;
}

.project-island__icon--magnitai img {
  width: 125%;
  height: 125%;
}

.project-island__icon--kodara img {
  width: 170%;
  height: 170%;
}

.project-island__icon--placeholder {
  gap: 0.1875rem;
  background: var(--color-surface-raised);
}

.project-island__icon--placeholder span {
  width: 0.3125rem;
  height: 0.3125rem;
  border-radius: 50%;
  background: #8b877f;
}

.project-island__icon--placeholder span:nth-child(2) {
  opacity: 0.65;
}

.project-island__icon--placeholder span:nth-child(3) {
  opacity: 0.35;
}

.project-island__divider {
  width: 1px;
  flex: 0 0 1px;
  margin-block: 0.625rem;
  background: var(--color-border);
}

.project-island__item--all {
  flex-basis: 5.25rem;
}

.project-island__icon--all {
  display: grid;
  grid-template-columns: repeat(2, 0.5rem);
  grid-template-rows: repeat(2, 0.5rem);
  gap: 0.25rem;
  background: var(--color-surface-raised);
}

.project-island__icon--all span {
  border: 1.5px solid #333333;
  border-radius: 0.125rem;
}

@media (max-width: 560px) {
  .project-island {
    left: 0.75rem;
    right: 0.75rem;
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    width: auto;
    max-width: none;
    border-radius: 1.5rem;
    scroll-snap-type: x proximity;
  }

  .project-island__item {
    flex-basis: 3.75rem;
    min-height: 4.25rem;
    scroll-snap-align: center;
  }

  .project-island__item--all {
    flex-basis: 4.75rem;
  }

  .project-island__icon {
    width: 2.75rem;
    height: 2.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-island,
  .project-island__item {
    transition: none;
  }
}