.projects-row,
.projects-grid {
  perspective: 1200px;
}

.project-box {
  /* No border/background declared here — both live on the ::before
     rotating-border layer in css/ambient.css (a dual-background-layer
     trick: solid fill clipped to padding-box, animated gradient clipped
     to border-box, separated by a transparent border). */
  border-radius: var(--radius);
  padding: var(--space-4);
  position: relative;
  z-index: 0;
  overflow: visible;
  transform-style: preserve-3d;
  will-change: transform;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}

.project-box:hover::before,
.project-box:focus-within::before {
  animation-duration: 2.2s;
}

.project-spotlight {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(34, 211, 238, 0.16), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-standard);
  pointer-events: none;
}

.project-box:hover .project-spotlight {
  opacity: 1;
}

.project-content {
  position: relative;
}

/* Collapses away (in normal flow, not absolutely positioned) when the card
   is held — the pill scrolls out of view internally rather than the tags
   panel floating on top of whatever is below the card. */
.project-category-wrap {
  display: grid;
  grid-template-rows: 1fr;
  opacity: 1;
  margin-bottom: var(--space-3);
  transition: grid-template-rows 360ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity 200ms ease,
    margin-bottom 360ms cubic-bezier(0.4, 0, 0.2, 1);
}

.project-category-wrap > * {
  min-height: 0;
  overflow: hidden;
}

.project-box.is-held .project-category-wrap {
  grid-template-rows: 0fr;
  opacity: 0;
  margin-bottom: 0;
}

.project-category-pill {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

.project-box .project-content h3 {
  font-family: var(--font-heading);
  color: var(--color-fg);
  font-size: 2rem;
}

.project-box .project-content p {
  color: var(--color-fg-muted);
  font-family: var(--font-body);
  font-size: 1.4rem;
  line-height: 1.5;
  margin-top: var(--space-2);
}

/* In normal document flow, right under the description — grows the card
   in place (no floating overlay, so nothing can render behind other
   content or get clipped by a parent's overflow/z-index). */
.project-tags {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  margin-top: 0;
  transition: grid-template-rows 360ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity 260ms ease,
    margin-top 360ms cubic-bezier(0.4, 0, 0.2, 1);
}

.project-tags > .project-tag-list {
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.project-box.is-held .project-tags {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: var(--space-3);
}

.project-tag {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(129, 140, 248, 0.18);
  border: 1px solid var(--color-accent-alt);
  color: var(--color-accent-alt);
}

.projects-more-controls {
  display: flex;
  justify-content: center;
  margin: var(--space-7) 0 var(--space-5);
}

.expanded-projects {
  width: 100%;
}

.expanded-projects[hidden] {
  display: none;
}

/* Plain CSS transition (see js/projects.js) instead of a scroll trigger —
   guaranteed to play every time the grid is expanded, never dependent on
   scroll position math computed while this grid was hidden/zero-size. */
#expanded-projects-grid .project-box {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 420ms ease, transform 420ms ease;
}

#expanded-projects-grid .project-box.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.category-filters {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: thin;
  gap: var(--space-2);
  justify-content: flex-start;
  padding: var(--space-1) var(--space-1) var(--space-3);
  margin-bottom: var(--space-3);
  max-width: 100%;
}

.category-filter-pill {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-fg-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.category-filter-pill.is-active,
.category-filter-pill:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.projects-grid .project-box[hidden] {
  display: none;
}