.subproject-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5em;
  margin: 2em 0 1em 0;
  max-width: var(--measure);
}

.subproject-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--color-fg);
}

.subproject-card-media {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-alt);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.subproject-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.2s ease, transform 0.25s ease;
}

.subproject-card:hover .subproject-card-media img {
  opacity: 0.9;
  transform: scale(1.02);
}

.subproject-card-caption {
  margin-top: 0.65em;
  display: flex;
  flex-direction: column;
  gap: 0.15em;
}

.subproject-card-title {
  font-size: 0.9rem;
  font-weight: 500;
}

.subproject-card:hover .subproject-card-title {
  text-decoration: underline;
}

.subproject-card-meta {
  font-size: 0.78rem;
  color: var(--color-muted);
}

.subseries-tag-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6em 1em;
  margin-bottom: 0.8em;
}

.subseries-tag {
  display: inline-block;
  font-size: 0.75rem;
  border: 1px solid var(--color-fg);
  padding: 0.25em 0.65em;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--color-bg);
}

.subseries-links {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65em 0.85em;
  font-size: 0.82rem;
  color: var(--color-meta);
}

.code-toggle-btn {
  background: var(--color-bg);
  border: 1px solid var(--color-fg);
  color: var(--color-fg);
  font-family: inherit;
  font-size: 0.78rem;
  line-height: 1.2;
  padding: 0.25em 0.65em;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.code-toggle-btn:hover,
.code-toggle-btn[aria-expanded="true"] {
  background: var(--color-fg);
  color: var(--color-bg);
}

.code-toggle-btn:focus-visible {
  outline: 2px solid var(--color-fg);
  outline-offset: 2px;
}

.subseries-desc {
  max-width: var(--measure);
  margin-bottom: 1.5em;
  color: #333;
  line-height: 1.6;
}

.code-panel {
  max-width: var(--measure);
  margin: -0.5em 0 1.75em 0;
  border: 1px solid var(--color-fg);
  background: var(--color-surface);
}

.code-panel[hidden] {
  display: none;
}

.code-panel-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5em 1em;
  padding: 0.55em 0.9em;
  border-bottom: 1px solid var(--color-surface-alt);
  background: var(--color-bg);
}

.code-panel-label {
  font-size: 0.78rem;
  color: var(--color-meta);
}

.copy-code-btn {
  background: var(--color-bg);
  border: 1px solid var(--color-fg);
  color: var(--color-fg);
  font-family: inherit;
  font-size: 0.75rem;
  padding: 0.2em 0.65em;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.copy-code-btn:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

.copy-code-btn:focus-visible {
  outline: 2px solid var(--color-fg);
  outline-offset: 2px;
}

.code-block {
  margin: 0;
  padding: 1em 1.1em;
  overflow-x: auto;
  font-family: inherit;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--color-fg);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.load-more-container {
  width: 100%;
  margin: 1.5em 0 2em 0;
  display: flex;
  align-items: center;
  gap: 0.8em;
  flex-wrap: wrap;
}

.load-more-btn {
  background: var(--color-bg);
  border: 1px solid var(--color-fg);
  color: var(--color-fg);
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.55em 1.25em;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.load-more-btn:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

.load-more-btn:focus-visible {
  outline: 2px solid var(--color-fg);
  outline-offset: 2px;
}

.load-more-counter {
  font-size: 0.8rem;
  color: var(--color-subtle);
}

.lightbox-frame-wrapper,
.lightbox-preview {
  background: var(--color-bg);
}

.lightbox-btn.is-active {
  background: var(--color-fg);
  color: var(--color-bg);
}

.lightbox-code-view {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-fg);
}

.lightbox-code-view[hidden] {
  display: none;
}

.lightbox-code-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5em 0.8em;
  padding: 0.65em 0.9em;
  border-bottom: 1px solid var(--color-surface-alt);
  background: var(--color-bg);
}

.lightbox-code-tabs {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  flex-wrap: wrap;
}

.lightbox-code-tab {
  background: var(--color-bg);
  border: 1px solid var(--color-surface-alt);
  color: var(--color-meta);
  font-family: inherit;
  font-size: 0.75rem;
  padding: 0.25em 0.65em;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.lightbox-code-tab:hover,
.lightbox-code-tab.is-active {
  border-color: var(--color-fg);
  background: var(--color-fg);
  color: var(--color-bg);
}

.lightbox-code-tab:focus-visible {
  outline: 2px solid var(--color-fg);
  outline-offset: 2px;
}

.lightbox-code-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.65em;
}

.lightbox-code-size {
  font-size: 0.74rem;
  color: var(--color-subtle);
}

.lightbox-code-pre {
  margin: 0;
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 1.1em;
  background: var(--color-surface);
  font-family: inherit;
  font-size: 0.78rem;
  line-height: 1.58;
  color: var(--color-fg);
  text-align: left;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}

@media (max-width: 767px) {
  .subproject-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1em;
  }

  .code-block,
  .lightbox-code-pre {
    font-size: 0.72rem;
    padding: 0.85em;
  }

  .lightbox-controls > .lightbox-btn:nth-child(5):last-of-type {
    grid-column: 1 / -1;
  }
}