/* Project cards: concise editorial hierarchy with project-specific accent identity. */

.project-grid-focus {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-card-playful {
  position: relative;
  isolation: isolate;
}

.project-card-playful .project-body {
  gap: 0.72rem;
}

.project-signal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.project-index,
.project-status {
  display: inline-flex;
  align-items: center;
  min-height: 1.85rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project-index {
  justify-content: center;
  width: 2.25rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-contrast);
}

.project-status {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 72%, transparent);
  color: var(--text);
  padding: 0.25rem 0.65rem;
}

.project-heading {
  display: grid;
  gap: 0.2rem;
}

.project-kicker {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 820;
  letter-spacing: 0.04em;
  line-height: 1.35;
  text-transform: uppercase;
}

.project-summary {
  max-width: 66ch;
  color: var(--muted);
  font-size: var(--text-ui);
  line-height: 1.42;
  text-wrap: pretty;
}

.project-facts {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-2) 48%, transparent);
  margin: 0;
}

.project-facts div {
  display: grid;
  grid-template-columns: minmax(4.8rem, auto) minmax(0, 1fr);
  align-items: start;
  gap: 0.65rem;
  padding: 0.58rem 0.68rem;
}

.project-facts div + div {
  border-top: 1px solid var(--border);
}

.project-facts dt {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project-facts dd {
  margin: 0;
  color: var(--muted);
  font-size: var(--text-ui);
  line-height: 1.38;
}

.project-stack {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.35rem 0.7rem;
}

.project-stack .tag-list {
  gap: 0.35rem;
}

.project-actions {
  justify-content: flex-start;
  gap: 0.55rem;
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-top: 0.72rem;
}

.project-read-link,
.project-repository-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  border-radius: 999px;
  font-size: var(--text-ui);
  font-weight: 820;
  line-height: 1;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.project-read-link:active,
.project-repository-link:active {
  transform: scale(0.985);
}

.project-read-link {
  gap: 0.4rem;
  border: 1px solid color-mix(in srgb, var(--project-accent) 42%, var(--border));
  background: color-mix(in srgb, var(--project-accent) 12%, var(--surface-2));
  color: var(--text);
  padding: 0.55rem 0.82rem;
  text-decoration: none;
  text-underline-offset: 0.2em;
}

.project-read-link:hover {
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
}

.project-repository-link {
  gap: 0.35rem;
  min-width: 6.6rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 0.55rem 0.8rem;
  text-decoration: none;
}

.project-section-actions {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Phase 2.4.3: the catalog keeps full controls on desktop and progressively
   collapses them on mobile. Without JavaScript the native details stay open. */
.project-filter-panel {
  margin-bottom: 1rem;
}

.project-filter-panel > summary {
  display: none;
}

.project-filter-panel-body {
  min-width: 0;
}

.project-filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
  max-width: 80rem;
}

.project-filter-control {
  display: grid;
  gap: 0.4rem;
  color: var(--text);
  font-weight: 800;
}

.project-filter-control > span {
  color: var(--muted);
  font-size: var(--text-ui);
}

.project-filter-control select {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  background: var(--surface);
  color: var(--text);
  padding: 0.55rem 0.7rem;
}

.project-filter-control select:focus-visible {
  outline: var(--focus-outline-width) solid var(--accent);
  outline-offset: var(--focus-outline-offset);
}

.project-catalog-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.project-catalog-status [data-project-count] {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 800;
}

.project-catalog-feedback {
  display: grid;
  gap: 0.2rem;
}

.project-filter-summary {
  color: var(--muted-2);
  font-size: var(--text-ui);
  line-height: 1.35;
}

.project-catalog-status [data-filter-reset][hidden] {
  display: none;
}

.project-facts-disclosure {
  margin: 0;
}

.project-facts-disclosure > summary {
  display: none;
}

.project-facts-disclosure .project-facts {
  margin: 0;
}

.project-grid-catalog {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-catalog-empty {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  margin-top: 1rem;
  padding: 1rem;
  text-align: center;
}

/* P2.4-D: keep identity in accent, media framing and hierarchy, not a body pattern. */
.project-card-playful[data-project-slug] {
  overflow: hidden;
  border-color: color-mix(
    in srgb,
    var(--project-accent) 34%,
    var(--border)
  );
  background:
    radial-gradient(
      circle at 92% 4%,
      color-mix(in srgb, var(--project-accent-2) 11%, transparent),
      transparent 21rem
    ),
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--project-accent) 6%, var(--surface)),
      var(--surface) 42%
    );
  box-shadow:
    inset 0 0.24rem 0 var(--project-accent),
    var(--shadow);
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.project-card-playful[data-project-slug]::before,
.project-card-playful[data-project-slug]::after {
  content: none;
}

.project-card-playful[data-project-slug] .project-media {
  display: grid;
  aspect-ratio: 16 / 9;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid
    color-mix(in srgb, var(--project-accent) 32%, var(--border));
  background:
    radial-gradient(
      circle at 84% 18%,
      color-mix(in srgb, var(--project-accent-2) 13%, transparent),
      transparent 45%
    ),
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--project-accent) 12%, var(--surface-2)),
      color-mix(in srgb, var(--project-accent-2) 7%, var(--surface))
    );
  padding: clamp(0.35rem, 0.8vw, 0.7rem);
}

.project-card-playful[data-project-slug] .project-media img {
  display: block;
  width: 100%;
  height: 100%;
  border: 1px solid
    color-mix(in srgb, var(--project-accent) 18%, var(--border));
  border-radius: calc(var(--radius-xl) - 0.65rem);
  background: var(--bg);
  object-fit: contain;
  object-position: center;
  box-shadow: 0 0.7rem 2rem color-mix(in srgb, #000 16%, transparent);
}

.project-card-playful[data-project-slug] .project-index {
  border: 1px solid
    color-mix(in srgb, var(--project-accent) 52%, var(--border));
  background: color-mix(
    in srgb,
    var(--project-accent) 16%,
    var(--surface-2)
  );
  color: var(--text);
  box-shadow: inset 0 0 0 1px
    color-mix(in srgb, var(--project-accent-2) 14%, transparent);
}

.project-card-playful[data-project-slug] .project-status {
  border-color: color-mix(
    in srgb,
    var(--project-accent) 24%,
    var(--border)
  );
  background: color-mix(
    in srgb,
    var(--project-accent) 5%,
    var(--surface-2)
  );
}

.project-card-playful[data-project-slug] .project-kicker {
  color: color-mix(in srgb, var(--project-accent) 44%, var(--text));
}

.project-card-playful[data-project-slug] .project-facts {
  border-color: color-mix(
    in srgb,
    var(--project-accent) 22%,
    var(--border)
  );
  background: color-mix(
    in srgb,
    var(--project-accent) 5%,
    var(--surface-2)
  );
  box-shadow: inset 0.18rem 0 0
    color-mix(in srgb, var(--project-accent) 64%, transparent);
}

.project-card-playful[data-project-slug] .project-facts div + div {
  border-top-color: color-mix(
    in srgb,
    var(--project-accent) 18%,
    var(--border)
  );
}

.project-card-playful[data-project-slug] .project-facts dt {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text);
}

.project-card-playful[data-project-slug] .project-facts dt::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  flex: 0 0 auto;
  border-radius: 999px;
  background: linear-gradient(
    135deg,
    var(--project-accent),
    var(--project-accent-2)
  );
}

.project-card-playful[data-project-slug] .tag {
  border: 0;
  background: color-mix(in srgb, var(--project-accent) 5%, var(--surface-2));
  box-shadow: inset 0.14rem 0 0
    color-mix(in srgb, var(--project-accent) 58%, transparent);
  color: var(--muted);
}

.project-card-playful[data-project-slug] .project-read-link {
  border-color: color-mix(
    in srgb,
    var(--project-accent) 46%,
    var(--border-strong)
  );
}

.project-card-playful[data-project-slug] .project-repository-link {
  border-color: color-mix(
    in srgb,
    var(--project-accent) 30%,
    var(--border-strong)
  );
}

/* Phase 2.4.1: the first featured project is the visual lead on the homepage. */
.project-grid-focus > [data-project-priority="lead"] {
  border-color: color-mix(
    in srgb,
    var(--project-accent) 58%,
    var(--border-strong)
  );
  box-shadow:
    inset 0 0.24rem 0 var(--project-accent),
    0 1.1rem 3rem color-mix(in srgb, var(--project-accent) 10%, transparent);
}

.project-grid-focus .project-summary,
.project-grid-focus .project-facts dd {
  text-wrap: pretty;
}

.project-grid-focus > [data-project-priority="lead"] .project-summary {
  max-width: 62ch;
}

/* Phase 2.4.2: internal density follows the card role without dropping content. */
.project-card-playful[data-project-density="lead"] .project-summary {
  font-size: 1rem;
  line-height: 1.46;
}

.project-card-playful[data-project-density="featured"] .project-body,
.project-card-playful[data-project-density="catalog"] .project-body {
  gap: 0.65rem;
}

.project-card-playful[data-project-density="catalog"] .project-facts div {
  gap: 0.55rem;
  padding: 0.5rem 0.6rem;
}

.project-card-playful[data-project-density="catalog"] .project-summary,
.project-card-playful[data-project-density="catalog"] .project-facts dd {
  line-height: 1.34;
}

@media (hover: hover) and (pointer: fine) {
  .project-card-playful[data-project-slug]:hover,
  .project-card-playful[data-project-slug]:focus-within {
    border-color: color-mix(
      in srgb,
      var(--project-accent) 68%,
      var(--border-strong)
    );
    box-shadow:
      inset 0 0.24rem 0 var(--project-accent),
      0 1.25rem 3.5rem color-mix(
        in srgb,
        var(--project-accent) 13%,
        transparent
      );
    transform: translateY(-0.15rem);
  }

  .project-card-playful[data-project-slug] .project-read-link:hover {
    border-color: color-mix(
      in srgb,
      var(--project-accent) 68%,
      var(--border-strong)
    );
    background: color-mix(
      in srgb,
      var(--project-accent) 18%,
      var(--surface-2)
    );
  }

  .project-card-playful[data-project-slug] .project-repository-link:hover {
    border-color: color-mix(
      in srgb,
      var(--project-accent) 58%,
      var(--border-strong)
    );
    background: color-mix(
      in srgb,
      var(--project-accent) 14%,
      var(--surface-2)
    );
  }
}

@media (min-width: 100rem) {
  .project-grid-focus {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(1rem, 1.3vw, 1.5rem);
  }

  .project-grid-focus > [data-project-priority="lead"] {
    grid-column: span 7;
  }

  .project-grid-focus
    > [data-project-priority="featured"]:nth-child(2) {
    grid-column: span 5;
  }

  .project-grid-focus
    > [data-project-priority="featured"]:nth-child(n + 3) {
    grid-column: span 6;
  }

  .project-grid-focus > [data-project-priority="lead"] .project-media {
    aspect-ratio: 16 / 8.5;
  }

  .project-grid-focus > [data-project-density="lead"] .project-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-grid-focus
    > [data-project-density="lead"]
    .project-facts
    div
    + div {
    border-top: 0;
    border-left: 1px solid
      color-mix(in srgb, var(--project-accent) 18%, var(--border));
  }
}

@media (min-width: 105rem) and (max-height: 60rem) {
  .project-grid-focus .project-body {
    gap: 0.68rem;
    padding: 0.85rem;
  }

  .project-grid-focus .project-heading h3 {
    font-size: 1.16rem;
  }

  .project-grid-focus .project-summary {
    line-height: 1.38;
  }

  .project-grid-focus .project-facts div {
    gap: 0.5rem;
    padding: 0.5rem 0.6rem;
  }

  .project-grid-focus .project-facts dd {
    line-height: 1.32;
  }

  .project-grid-focus .tag {
    min-height: 1.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-card-playful[data-project-slug],
  .project-read-link,
  .project-repository-link,
  .project-disclosure-icon {
    transition: none;
  }

  .project-card-playful[data-project-slug]:hover,
  .project-card-playful[data-project-slug]:focus-within,
  .project-read-link:active,
  .project-repository-link:active {
    transform: none;
  }
}

@media (max-width: 70rem) {
  .project-grid-focus,
  .project-grid-catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* P2.4-C/D: density follows the available frame instead of the legacy container. */
@media (max-width: 45rem) {
  .project-filter-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--surface) 78%, transparent);
  }

  .project-filter-panel > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    min-height: 2.75rem;
    padding: 0.72rem 0.85rem;
    cursor: pointer;
    color: var(--text);
    font-weight: 850;
    list-style: none;
  }

  .project-filter-panel > summary::-webkit-details-marker,
  .project-facts-disclosure > summary::-webkit-details-marker {
    display: none;
  }

  .project-filter-panel > summary:focus-visible,
  .project-facts-disclosure > summary:focus-visible {
    outline: var(--focus-outline-width) solid var(--accent);
    outline-offset: var(--focus-outline-offset);
  }

  .project-filter-toggle-count {
    flex: 0 0 auto;
    color: var(--muted-2);
    font-family: var(--font-mono);
    font-size: var(--text-meta);
    font-weight: 800;
  }

  .project-filter-panel-body {
    border-top: 1px solid var(--border);
    padding: 0.8rem;
  }

  .project-filter-panel:not([open]) .project-filter-panel-body {
    display: none;
  }

  .project-grid-focus,
  .project-grid-catalog,
  .project-filters {
    grid-template-columns: 1fr;
  }

  .project-catalog-status {
    align-items: stretch;
    flex-direction: column;
    gap: 0.65rem;
  }

  .project-catalog-status [data-filter-reset] {
    min-height: 2.75rem;
    width: 100%;
  }

  .project-filter-summary {
    overflow-wrap: anywhere;
  }

  .project-facts-disclosure > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    min-height: 2.75rem;
    border: 1px solid color-mix(
      in srgb,
      var(--project-accent) 22%,
      var(--border)
    );
    border-radius: var(--radius);
    background: color-mix(
      in srgb,
      var(--project-accent) 5%,
      var(--surface-2)
    );
    padding: 0.62rem 0.72rem;
    cursor: pointer;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: var(--text-meta);
    font-weight: 900;
    letter-spacing: 0.04em;
    list-style: none;
    text-transform: uppercase;
  }

  .project-disclosure-icon {
    display: inline-grid;
    width: 1.5rem;
    height: 1.5rem;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 999px;
    background: color-mix(
      in srgb,
      var(--project-accent) 12%,
      var(--surface)
    );
    transition: transform 160ms ease;
  }

  .project-facts-disclosure[open] .project-disclosure-icon {
    transform: rotate(45deg);
  }

  .project-facts-disclosure[open] > summary {
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
  }

  .project-facts-disclosure .project-facts {
    border-top: 0;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
  }

  .project-signal {
    align-items: center;
    flex-direction: row;
  }

  .project-status {
    width: fit-content;
  }

  .project-facts div {
    grid-template-columns: 1fr;
    gap: 0.22rem;
  }

  .project-stack {
    grid-template-columns: 1fr;
  }

  .project-actions {
    align-items: stretch;
  }
}

@media (min-width: 80rem) {
  .project-grid-catalog {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 105rem) {
  .project-grid-catalog {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 190rem) {
  .project-grid-catalog {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}