.lab-intro .lab-back { margin: 10px 0 0; }
.lab-hint { margin: 8px 0 0; font-size: 12px; color: var(--muted); }
.lab-back a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; color: var(--site-accent); font: 11px/1.4 var(--mono); letter-spacing: .04em; }
.lab-back a:hover { text-decoration: underline; }
.lab-back svg { width: 13px; height: 13px; }

.lab-thumb-fallback {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  padding: 12px; color: #c9d0d6; font-size: 12px; text-align: center; z-index: 1;
}
.lab-duration {
  position: absolute; right: 8px; bottom: 8px; z-index: 1; padding: 3px 8px;
  background: rgba(20, 24, 28, .72); color: #fff; border-radius: 6px;
  font: 11px/1.5 var(--mono); pointer-events: none;
}
.lab-badge {
  position: absolute; left: 8px; bottom: 8px; z-index: 1; padding: 3px 8px;
  background: rgba(20, 24, 28, .72); color: #fff; border-radius: 6px;
  font: 11px/1.5 var(--mono); pointer-events: none;
}
.lab-media-status {
  position: absolute; left: 8px; bottom: 8px; z-index: 3; margin: 0; padding: 6px 10px;
  background: rgba(20, 24, 28, .78); color: #fff; border-radius: 6px; font-size: 12px;
}
.lab-media-status a { color: #ffd7e2; }

.lab-filters {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin: 0 0 14px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface);
}
.lab-filter-search { display: flex; align-items: center; gap: 8px; flex: 1 1 200px; min-width: 0; min-height: 44px; padding: 0 12px; background: var(--canvas); border: 1px solid var(--line); border-radius: 8px; }
.lab-filter-search svg { width: 14px; height: 14px; color: var(--muted); flex: none; }
.lab-filter-search input { flex: 1; min-width: 0; border: 0; background: transparent; font-size: 13px; color: var(--ink); outline: none; }
.lab-filter-search:focus-within { border-color: var(--site-accent); box-shadow: 0 0 0 2px var(--brand-soft); }
.lab-filter-kind { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font-size: 12px; color: var(--muted); }
.lab-filter-kind select { min-height: 40px; padding: 0 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); font-size: 12px; color: var(--ink); }
.lab-filter-toggle { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font-size: 12px; color: var(--ink); cursor: pointer; }
.lab-filter-toggle input { width: 16px; height: 16px; accent-color: var(--site-accent); }
.lab-filter-submit {
  min-height: 44px; padding: 0 18px; border: 0; border-radius: 8px;
  background: var(--site-accent); color: var(--accent-ink); font-size: 13px; font-weight: 650; cursor: pointer;
}
.lab-filter-submit:hover { filter: brightness(1.08); }

.lab-chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 18px; }
.lab-chip {
  display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 14px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
  font-size: 12px; color: var(--ink);
}
.lab-chip:hover { border-color: var(--site-accent); color: var(--site-accent); }
.lab-chip[aria-current="page"] { background: var(--brand-soft); border-color: var(--site-accent); color: var(--site-accent); font-weight: 650; }
.lab-chip-count { font-size: 11px; color: var(--muted); }
.lab-chip[aria-current="page"] .lab-chip-count { color: var(--site-accent); }

.lab-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
  gap: 14px; max-width: 100%; min-width: 0;
}
.lab-card {
  position: relative; min-width: 0;
  border: 1px solid var(--line); border-radius: 12px; background: var(--surface);
  overflow: hidden; display: flex; flex-direction: column;
}
.lab-card.is-selected { border-color: var(--site-accent); box-shadow: 0 0 0 1px var(--site-accent); }
.lab-card-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #0d1013; }
.lab-card-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.lab-card-media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; display: block; background: #0d1013; z-index: 2; pointer-events: none; }
.lab-card-hit { position: absolute; inset: 0; z-index: 1; }
.lab-card-hit:focus-visible { outline: 2px solid var(--site-accent); outline-offset: -2px; }
.lab-card.is-previewing .lab-card-media img { visibility: hidden; }
.lab-skill-tag {
  display: inline-flex; align-items: center; gap: 6px; align-self: flex-start; max-width: 100%;
  padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px;
  font: 10.5px/1.5 var(--mono); letter-spacing: .04em; color: var(--muted);
}

.lab-ctl {
  position: absolute; z-index: 2; display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; min-width: 44px; min-height: 44px; padding: 0;
  border: 0; border-radius: 999px; background: rgba(20, 24, 28, .72); color: #fff;
  font-size: 12px; cursor: pointer;
}
.lab-ctl:hover { background: rgba(20, 24, 28, .88); }
.lab-ctl:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.lab-ctl svg { width: 16px; height: 16px; }
.lab-ctl-play { left: 50%; top: 50%; transform: translate(-50%, -50%); padding: 0 18px; }
.lab-ctl-mute { right: 6px; bottom: 6px; }
.lab-ctl-pause { right: 6px; top: 6px; }

.lab-card-body { display: flex; flex-direction: column; gap: 4px; height: 148px; padding: 10px 12px 8px; box-sizing: border-box; }
.lab-card-title {
  margin: 0; font-size: 13px; line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.lab-card-title a { color: var(--ink); display: inline-block; }
.lab-card-title a:hover { color: var(--site-accent); }
.lab-card-meta { margin: 0; font-size: 11px; color: var(--muted); }
.lab-card-desc {
  margin: 0; font-size: 12px; line-height: 1.45; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.lab-card.is-skill .lab-card-body { height: auto; flex: 1 1 auto; gap: 6px; padding: 12px; }
.lab-card.is-skill .lab-card-title a { font: 12.5px/1.45 var(--mono); }
.lab-card.is-skill .lab-card-desc { -webkit-line-clamp: 3; line-clamp: 3; }
.lab-card-tools { margin: 0; font-size: 12px; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lab-card-foot { display: flex; align-items: center; gap: 4px; margin: auto 0 0; padding-top: 4px; min-width: 0; }
.lab-prompt-state { font: 11px/1.4 var(--mono); letter-spacing: .03em; color: var(--site-accent); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lab-card-source, .lab-card-details {
  display: inline-flex; align-items: center; gap: 4px; min-height: 44px; padding: 0 4px;
  font-size: 12px; color: var(--muted);
}
.lab-card-details { color: var(--site-accent); }
.lab-card-source:hover, .lab-card-details:hover { color: var(--site-accent); }
.lab-card-source svg { width: 12px; height: 12px; }
.lab-empty { grid-column: 1 / -1; margin: 0; padding: 32px 16px; text-align: center; font-size: 13px; color: var(--muted); }

.lab-sentinel { height: 1px; }
.lab-status { min-height: 20px; margin: 14px 0 0; font-size: 12px; color: var(--muted); }
.lab-more {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; margin: 14px auto 0; padding: 0 26px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
  font-size: 13px; color: var(--ink); cursor: pointer;
}
.lab-more:hover { border-color: var(--site-accent); color: var(--site-accent); }
.lab-more[disabled] { opacity: .55; cursor: default; }
.lab-pager { margin-top: 18px; }

.lab-dialog {
  position: relative; margin: auto; padding: 0; border: 0; border-radius: 14px;
  width: min(720px, calc(100% - 32px)); max-width: 100%; max-height: 86vh;
  background: var(--surface); color: var(--ink);
}
.lab-dialog::backdrop { background: rgba(15, 18, 21, .55); }
.lab-dialog[open] { display: flex; flex-direction: column; }
.lab-dialog-close {
  position: absolute; right: 10px; top: 10px; z-index: 4;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px; border: 0; border-radius: 999px;
  background: rgba(20, 24, 28, .6); color: #fff; cursor: pointer;
}
.lab-dialog-close:hover { background: rgba(20, 24, 28, .8); }
.lab-dialog-close svg { width: 18px; height: 18px; }
.lab-dialog-body { overflow: auto; padding: 18px; }
.lab-dialog-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #0d1013; border-radius: 10px; }
.lab-detail-desc { margin: 10px 0 4px; font-size: 13px; line-height: 1.6; color: var(--ink); }
.lab-dialog-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.lab-dialog-media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; display: block; background: #0d1013; }
.lab-detail-title { margin: 0 48px 12px 0; font-size: 20px; }
.lab-meta { display: grid; grid-template-columns: 1fr; gap: 10px; margin: 0 0 4px; }
.lab-meta div { min-width: 0; }
.lab-meta dt { font-size: 11px; color: var(--muted); letter-spacing: .04em; margin: 0 0 3px; }
.lab-meta dd { margin: 0; font-size: 13px; }
.lab-meta dd a { color: var(--site-accent); }
.lab-assets-note { margin: 12px 0 0; font-size: 12px; color: var(--muted); }
.lab-detail-status { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 0 0 10px; font-size: 12px; color: var(--site-accent); }
.lab-detail-retry {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--surface);
  font-size: 12px; color: var(--site-accent); cursor: pointer;
}
.lab-detail-retry:hover { border-color: var(--site-accent); }
.lab-play-note { margin: 8px 0 0; font-size: 12px; color: var(--muted); }
.lab-play-note a { display: inline-flex; align-items: center; gap: 4px; min-height: 44px; color: var(--site-accent); }
.lab-play-note svg { width: 12px; height: 12px; }

.lab-prompt { margin: 14px 0 0; border: 1px solid var(--line); border-radius: 10px; background: var(--canvas); }
.lab-prompt-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.lab-prompt-label { font: 11px/1.4 var(--mono); letter-spacing: .05em; color: var(--site-accent); }
.lab-copy {
  display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 14px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--surface);
  font-size: 12px; color: var(--ink); cursor: pointer;
}
.lab-copy:hover { border-color: var(--site-accent); color: var(--site-accent); }
.lab-copy svg { width: 14px; height: 14px; }
.lab-prompt-text {
  margin: 0; padding: 14px; font: 12px/1.75 var(--mono); color: var(--ink);
  white-space: pre-wrap; word-break: break-word; overflow-wrap: anywhere;
  max-height: 260px; overflow: auto;
}
.lab-prompt-foot { display: flex; justify-content: space-between; gap: 12px; margin: 0; padding: 8px 14px 10px; font-size: 11px; color: var(--muted); flex-wrap: wrap; }
.lab-copy-status { color: var(--site-accent); }
.lab-prompt-out { margin: 14px 0 0; font-size: 13px; color: var(--muted); }
.lab-prompt-out a { color: var(--site-accent); }
.lab-prompt-out svg { width: 12px; height: 12px; }
.lab-attribution { margin: 14px 0 0; font-size: 11px; color: var(--muted); }

.lab-resources { margin: 30px 0 8px; padding-top: 18px; border-top: 1px solid var(--line); }
.lab-resources h2 { margin: 0; font-size: 14px; font-weight: 650; }
.lab-resources-note { margin: 6px 0 12px; font-size: 12px; color: var(--muted); }
.lab-resource-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.lab-resource-list li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; font-size: 12px; }
.lab-resource-list a { color: var(--site-accent); font: 12px/1.5 var(--mono); word-break: break-all; }
.lab-resource-list a:hover { text-decoration: underline; }
.lab-resource-role { color: var(--muted); }

@media (max-width: 640px) {
  .lab-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .lab-filters { padding: 10px; }
  .lab-dialog-body { padding: 14px; }
  .lab-detail-title { font-size: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  .lab-ctl, .lab-chip, .lab-more, .lab-filter-submit, .lab-copy, .lab-detail-retry { transition: none; }
}