.projects {
  padding-top: calc(var(--space-xl) + 4rem);
  padding-bottom: var(--space-section);
}

.projects__head {
  margin-bottom: var(--space-lg);
}

.projects__title {
  font-size: var(--text-3xl);
  letter-spacing: -0.03em;
  max-width: 14ch;
}

.projects__lead {
  max-width: 48ch;
  margin-top: 0.75rem;
}


.projects__controls {
  position: sticky;
  top: var(--nav-h, 4.5rem);
  z-index: 20;

  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md);
  margin-inline: calc(var(--gutter) * -1);
  padding: var(--space-sm) var(--gutter) var(--space-md);
  border-bottom: 1px solid var(--color-line);
  transition: background var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}

.projects__controls.is-stuck {
  background: color-mix(in oklab, var(--color-bg) 86%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: oklch(45% 0.02 270 / 0.5);
  box-shadow: 0 18px 30px -26px oklch(0% 0 0 / 0.9);
}

.projects__sentinel {
  height: 0;
}

.projects__facets {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  min-width: min(100%, 32rem);
  flex: 1 1 32rem;
}

.projects__facet {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  align-items: baseline;
  gap: 0.75rem;
}

.projects__facet-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.projects__chips {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}


.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: oklch(20% 0.02 270);
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}

.chip:hover {
  border-color: oklch(55% 0.02 270);
  background: oklch(26% 0.02 270);
}

.chip__count {
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
  color: var(--color-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.chip.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  font-weight: 500;
}

.chip.is-active .chip__count {
  color: oklch(100% 0 0 / 0.75);
}

.chip.is-empty {
  opacity: 0.35;
  cursor: not-allowed;
}

.chip.is-empty:hover {
  border-color: var(--color-line);
  background: oklch(20% 0.02 270);
}


.projects__sort {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.projects__sort-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.projects__sort-select {
  appearance: none;
  padding: 0.4rem 2rem 0.4rem 0.8rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background-color: oklch(20% 0.02 270);
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
                    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 1.05rem) 55%, calc(100% - 0.75rem) 55%;
  background-size: 0.3rem 0.3rem, 0.3rem 0.3rem;
  background-repeat: no-repeat;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  cursor: pointer;
}

.projects__sort-select:hover {
  border-color: oklch(55% 0.02 270);
}

.projects__sort-go {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: oklch(20% 0.02 270);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
}


.projects__count {
  margin: var(--space-md) 0 var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.projects__grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: clamp(1rem, 0.5rem + 1vw, 1.75rem);
}

.projects__grid > [hidden] {
  display: none;
}

.projects__empty {
  padding: var(--space-lg) 0;
  color: var(--color-muted);
  font-size: var(--text-lg);
}

.projects__empty a {
  color: var(--color-text);
  text-underline-offset: 0.25em;
}

@media (max-width: 720px) {
  .projects__facet {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .projects__controls {
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .projects__controls {
    gap: var(--space-sm);
    padding-bottom: var(--space-sm);
  }

  .projects__facets {
    flex-basis: 100%;
    min-width: 0;
    gap: 0.6rem;
  }

  .projects__facet {
    grid-template-columns: minmax(0, 1fr);
  }

  .projects__chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    margin-inline: calc(var(--gutter) * -1);
    padding-inline: var(--gutter);
    scroll-padding-inline: var(--gutter);
    -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 2.5rem), transparent);
            mask-image: linear-gradient(to right, #000 calc(100% - 2.5rem), transparent);
  }

  .projects__chips::-webkit-scrollbar { display: none; }

  .projects__chips > li { flex: none; }

  .chip { padding: 0.45rem 0.85rem; }

  .projects__sort-select { font-size: 1rem; }
}