/* NEXUS_AI v2 — skills catalog (skills.html) */
.sk-wrap { display: grid; gap: 16px; padding-bottom: 110px; }
.sk-step { display: flex; align-items: center; gap: 10px; font-size: 16px; }
.sk-step .n, .sk-bar-sum .n { width: 26px; height: 26px; flex: 0 0 auto; border-radius: 8px; display: grid; place-items: center; font-size: 13px; font-weight: 800; color: var(--on-brand); background: var(--brand); }
.sk-step-2 { margin-top: 8px; }
.sk-targets { display: grid; gap: 14px; }
.sk-target-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 8px; }
.sk-target { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--radius-md); border: 1px solid var(--border); background: var(--bg-canvas); cursor: pointer; transition: border-color .15s, background .15s; }
.sk-target:has(input:checked) { border-color: var(--accent-violet); background: var(--accent-violet-subtle); }
.sk-target input { width: 18px; height: 18px; accent-color: var(--accent-violet); flex: 0 0 auto; }
.sk-target b { display: block; font-size: 14px; }
.sk-target small { display: block; font: 11.5px var(--font-mono); color: var(--text-muted); overflow-wrap: anywhere; }
.sk-tools { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.sk-tools .input { flex: 1 1 240px; height: 42px; }
.sk-cats { display: flex; gap: 6px; flex-wrap: wrap; }
.sk-cats button { height: 34px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--border); font-size: 13px; font-weight: 600; color: var(--text-secondary); background: var(--bg-surface); }
.sk-cats button.on { color: var(--on-brand); background: var(--brand); border-color: transparent; }
.sk-cats button small { opacity: .7; margin-left: 4px; }
.sk-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.sk-card { position: relative; display: flex; flex-direction: column; gap: 8px; padding: 16px 16px 14px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--bg-surface); cursor: pointer; transition: border-color .15s, transform .15s, box-shadow .15s; }
.sk-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.sk-card.on { border-color: var(--accent-violet); box-shadow: 0 0 0 1px var(--accent-violet) inset; }
.sk-card input { position: absolute; top: 16px; right: 16px; width: 20px; height: 20px; accent-color: var(--accent-violet); }
.sk-card h3 { font-size: 15.5px; margin: 0; padding-right: 30px; line-height: 1.35; }
.sk-card p { margin: 0; font-size: 13.5px; line-height: 1.5; color: var(--text-secondary); flex: 1; }
.sk-meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 11.5px; color: var(--text-muted); }
.sk-meta .tag { padding: 2px 8px; border-radius: 6px; background: var(--bg-subtle); font-family: var(--font-mono); }
.sk-meta a { color: var(--text-muted); text-decoration: underline; text-underline-offset: 2px; margin-left: auto; }
.sk-meta a:hover { color: var(--text-main); }
.sk-mcp-lead { margin: -6px 0 0; font-size: 14px; color: var(--text-secondary); max-width: 860px; }
.sk-meta .star { color: var(--accent-warm); font-weight: 650; }
.sk-meta .req { padding: 2px 8px; border-radius: 6px; background: var(--accent-violet-subtle); color: var(--accent-violet); font-family: var(--font-mono); }
.sk-empty { grid-column: 1 / -1; padding: 40px 0; text-align: center; color: var(--text-muted); }
.sk-note { align-items: flex-start; }
.sk-note a { color: var(--accent-violet); }
/* sticky install bar */
.sk-bar { position: fixed; z-index: 45; left: 0; right: 0; bottom: 0; padding: 12px 0 calc(12px + env(safe-area-inset-bottom)); background: color-mix(in srgb, var(--bg-elevated) 92%, transparent); backdrop-filter: blur(10px); border-top: 1px solid var(--border); box-shadow: var(--shadow-xl); }
.sk-bar[hidden] { display: none; }
.sk-bar-in { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.sk-bar-sum { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-secondary); }
.sk-bar-sum b { color: var(--text-main); }
.sk-bar-actions { display: flex; gap: 8px; flex-wrap: wrap; }
@media (max-width: 700px) {
  .sk-target-list { grid-template-columns: 1fr; }
  .sk-grid { grid-template-columns: 1fr; }
  .sk-bar-actions { width: 100%; }
  .sk-bar-actions .btn { flex: 1 1 auto; }
  .sk-bar-actions #sk-bat { flex-basis: 100%; }
}