:root {
  --bg0: #f3efe6;
  --bg1: #ebe4d6;
  --ink: #1a1f18;
  --muted: #5c6458;
  --line: #cfc5b2;
  --card: rgba(255, 252, 246, 0.82);
  --accent: #0e6b5c;
  --accent-2: #b85c38;
  --ok: #1f7a4c;
  --warn: #a67c00;
  --fail: #a32020;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "DM Sans", system-ui, sans-serif;
  --serif: "Newsreader", Georgia, serif;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg0);
  line-height: 1.45;
}
.atmosphere {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 500px at 10% -10%, #d9e8e2 0%, transparent 60%),
    radial-gradient(700px 400px at 100% 0%, #efe0d0 0%, transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; padding: 1rem 1.75rem; border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 20;
  background: rgba(243, 239, 230, 0.85);
}
.brand { text-decoration: none; color: inherit; display: flex; flex-direction: column; }
.brand .mark { font-family: var(--serif); font-size: 1.55rem; font-weight: 600; letter-spacing: -0.02em; }
.brand .tag { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); }
.nav { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.nav a {
  text-decoration: none; color: var(--muted); padding: 0.4rem 0.75rem;
  border-radius: 999px; font-size: 0.9rem; font-weight: 500;
}
.nav a:hover, .nav a.active { color: var(--ink); background: rgba(14, 107, 92, 0.1); }
.nav-kbd {
  font-family: var(--mono); font-size: 0.88rem; font-weight: 600;
  color: var(--muted); background: transparent; border: 1px solid var(--line);
  border-radius: 999px; width: 2rem; height: 2rem; padding: 0; cursor: pointer;
}
.nav-kbd:hover { color: var(--ink); border-color: var(--accent); }
.app { max-width: 1200px; margin: 0 auto; padding: 1.5rem 1.75rem 3rem; }
.app.studio-page {
  max-width: 1480px;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 4.5rem);
  padding-bottom: 1.25rem;
}

h1 { font-family: var(--serif); font-weight: 600; font-size: 2rem; margin: 0 0 0.35rem; letter-spacing: -0.02em; }
h2 { font-family: var(--serif); font-weight: 600; font-size: 1.35rem; margin: 1.5rem 0 0.6rem; }
h3 { font-size: 1rem; margin: 0 0 0.4rem; }
.lede { color: var(--muted); margin: 0 0 1.25rem; max-width: 52rem; }

.grid { display: grid; gap: 1rem; }
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem 1.1rem; backdrop-filter: blur(4px);
}
.card.clickable { cursor: pointer; transition: border-color 0.15s, transform 0.15s; }
.card.clickable:hover { border-color: var(--accent); transform: translateY(-1px); }
.project-bulkbar { position: sticky; top: .5rem; z-index: 3; margin: 1rem 0; padding: .65rem .8rem; border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px); }
.project-card.selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.project-select { width: 1.05rem; height: 1.05rem; margin-top: .18rem; accent-color: var(--accent); }
.skills-hero {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem;
  align-items: end; padding: 2.25rem 0 1.5rem; border-bottom: 1px solid var(--line);
}
.skills-kicker {
  margin: 0 0 0.7rem; color: var(--accent); font: 600 0.7rem var(--mono);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.skills-hero h1 { max-width: 14ch; font: 600 clamp(2.4rem, 5vw, 4.25rem)/0.98 var(--sans); letter-spacing: -0.055em; }
.skills-hero > div > p:last-child { max-width: 62ch; margin: 1rem 0 0; color: var(--muted); font-size: 1.02rem; }
.skills-summary { display: grid; grid-template-columns: repeat(3, minmax(105px, 1fr)); margin: 0; }
.skills-summary div { padding: 0 1rem; border-left: 1px solid var(--line); }
.skills-summary dt { color: var(--muted); font-size: 0.72rem; }
.skills-summary dd { margin: 0.2rem 0 0; color: var(--accent); font: 600 1.65rem var(--mono); }

.capability-compass {
  display: grid; grid-template-columns: minmax(250px, 0.75fr) minmax(0, 1.6fr); gap: 2rem;
  padding: 1.5rem 0; border-bottom: 1px solid var(--line);
}
.capability-intro h2 { margin: 0 0 0.45rem; font-family: var(--sans); }
.capability-intro p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.capability-tracks { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); }
.capability-tracks article { display: grid; align-content: start; gap: 0.4rem; padding: 0 0.85rem; border-left: 1px solid var(--line); }
.capability-tracks strong { font: 600 0.76rem var(--mono); color: var(--accent); }
.capability-tracks span { color: var(--muted); font-size: 0.76rem; line-height: 1.4; }

.skill-viewbar { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0 0.75rem; }
.skill-view-tabs { display: flex; gap: 0.2rem; padding: 0.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 252, 246, 0.55); }
.skill-view-tabs button {
  border: 0; border-radius: 7px; padding: 0.45rem 0.8rem; background: transparent;
  color: var(--muted); cursor: pointer; font: 600 0.8rem var(--sans);
}
.skill-view-tabs button[aria-selected="true"] { background: var(--ink); color: #fffdf8; }
.skill-view-tabs span { font: 500 0.68rem var(--mono); opacity: 0.72; }
.skill-viewbar > .btn { margin-left: auto; text-decoration: none; }
.skill-toolbar { margin-bottom: 1.4rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.skill-section-head { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 0.8rem; }
.skill-section-head h2 { margin: 0; font-family: var(--sans); font-size: 1.35rem; letter-spacing: -0.03em; }
.skill-section-head p { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.83rem; }
.skill-section-head > strong { color: var(--accent); font: 600 1.35rem var(--mono); }
.skill-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.7rem; }
.skill-card {
  min-width: 0; padding: 0.85rem 0.9rem; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); transition: border-color 0.15s;
}
.skill-card:hover { border-color: var(--accent); }
.skill-card-title, .skill-card-body { text-decoration: none; color: inherit; min-width: 0; }
.skill-card-body { display: block; }
.skill-card-title h3 { overflow: hidden; text-overflow: ellipsis; }
.skill-card .row { flex-wrap: nowrap; }
.skill-card .badge { flex: 0 0 auto; }
.skill-meta { display: flex; gap: 0.35rem 0.8rem; flex-wrap: wrap; font-size: 0.66rem; }
.skill-meta span:nth-child(2) { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.skill-export { font-size: 0.75rem; padding: 0.2rem 0.55rem; }
.skill-graph { margin-top: 1.5rem; border-top: 1px solid var(--line); }
.skill-graph summary { padding: 0.8rem 0; color: var(--muted); cursor: pointer; font-size: 0.8rem; }
.skill-graph summary span { color: var(--accent); font-family: var(--mono); }
.skill-detail-actions {
  display: flex; align-items: center; gap: 0.55rem; min-height: 2.5rem;
}
.skill-detail-hero {
  display: grid; gap: 0.75rem; padding: 2.4rem 0 1.7rem;
  border-bottom: 1px solid var(--line);
}
.skill-detail-hero .skills-kicker { margin: 0; }
.skill-detail-hero h1 {
  max-width: 16ch; margin: 0; font: 600 clamp(2.5rem, 5vw, 4.8rem)/0.95 var(--sans);
  letter-spacing: -0.055em;
}
.skill-detail-hero > p:not(.skills-kicker) {
  max-width: 66ch; margin: 0; color: var(--muted); font-size: 1.05rem;
}
.skill-detail-byline { display: flex; gap: 0.5rem 1.5rem; flex-wrap: wrap; color: var(--muted); font: 500 0.72rem var(--mono); }
.skill-detail-tabs {
  display: flex; gap: 0.15rem; overflow-x: auto; margin: 1.1rem 0 0;
  padding: 0.2rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: rgba(255,252,246,.55); scrollbar-width: thin;
}
.skill-detail-tabs button {
  flex: 0 0 auto; border: 0; border-radius: 7px; padding: 0.5rem 0.8rem;
  background: transparent; color: var(--muted); cursor: pointer; font: 600 0.8rem var(--sans);
}
.skill-detail-tabs button[aria-selected="true"] { background: var(--ink); color: #fffdf8; }
.skill-detail-tabs button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.skill-detail-panel { padding: 1.4rem 0 0; }
.skill-overview-grid { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(250px,.55fr); gap: 2.5rem; }
.skill-intro h2, .skill-workflow h2, .skill-panel-head h2 { margin: 0 0 0.55rem; font-family: var(--sans); letter-spacing: -0.035em; }
.skill-intro > p { max-width: 62ch; margin: 0; color: var(--muted); font-size: 1rem; }
.skill-highlight-list {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 0.65rem 1.5rem;
  margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line);
}
.skill-highlight-list span { padding-left: 0.8rem; border-left: 3px solid var(--accent); font-size: 0.9rem; }
.skill-facts { display: grid; align-content: start; border-top: 1px solid var(--line); }
.skill-facts div { display: grid; grid-template-columns: 6rem minmax(0,1fr); gap: 0.75rem; padding: 0.65rem 0; border-bottom: 1px solid var(--line); }
.skill-facts span { color: var(--muted); font-size: 0.72rem; }
.skill-facts strong { overflow-wrap: anywhere; font: 500 0.75rem var(--mono); }
.skill-workflow { margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.skill-workflow ol { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0.8rem 2rem; margin: 0; padding-left: 1.5rem; }
.skill-workflow li { padding-left: 0.3rem; font-size: 0.9rem; }
.skill-workflow li::marker { color: var(--accent); font-family: var(--mono); }
.skill-instructions {
  max-height: 28rem; overflow: auto; margin: 0; padding: 1rem 0;
  border: 0; background: transparent; color: var(--ink); white-space: pre-wrap;
  font: 0.82rem/1.65 var(--mono);
}
.skill-panel-head { display: flex; align-items: start; gap: 1rem; justify-content: space-between; margin-bottom: 0.8rem; }
.skill-panel-head p { max-width: 64ch; margin: 0; color: var(--muted); font-size: 0.85rem; }
.skill-showcase-frame, .skill-lab-frame {
  display: block; width: 100%; min-height: 620px; border: 1px solid var(--line);
  border-radius: var(--radius); background: #d9ddd8;
}
.skill-samples { display: grid; grid-template-columns: minmax(210px,.55fr) minmax(0,1.45fr); gap: 0.8rem; }
.skill-samples nav { display: grid; align-content: start; gap: 0.35rem; }
.skill-samples button {
  display: grid; gap: 0.2rem; text-align: left; padding: 0.65rem 0.75rem;
  border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--ink); cursor: pointer;
}
.skill-samples button:hover, .skill-samples button.on { border-color: var(--accent); background: rgba(14,107,92,.08); }
.skill-samples button strong { font: 600 0.8rem var(--mono); }
.skill-samples button span { color: var(--muted); font-size: 0.72rem; line-height: 1.4; }
.skill-samples .pre { max-height: 620px; min-height: 360px; }
.guideline-samples { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.guideline-theme { margin-top: 1.5rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.guideline-theme > summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem 0; cursor: pointer; list-style: none;
}
.guideline-theme > summary::-webkit-details-marker { display: none; }
.guideline-theme > summary > span:first-child { display: grid; gap: 0.2rem; }
.guideline-theme > summary strong { font-size: 0.95rem; }
.guideline-theme > summary small { color: var(--muted); font-size: 0.75rem; }
.guideline-theme-state { flex: 0 0 auto; color: var(--accent); font: 600 0.72rem var(--mono); }
.guideline-theme-body { padding: 0.25rem 0 1.25rem; }
.apuch-theme-toolbar { display: grid; gap: 0.7rem; margin-bottom: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.saved-theme-switcher { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.saved-theme-switcher button {
  display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.48rem 0.65rem;
  border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--ink);
  cursor: pointer; font: 600 0.75rem var(--sans);
}
.saved-theme-switcher button:hover, .saved-theme-switcher button.on { border-color: var(--accent); background: rgba(14,107,92,.08); }
.saved-theme-switcher i { width: 0.8rem; height: 0.8rem; border-radius: 50%; background: var(--theme-swatch); box-shadow: inset 0 0 0 1px rgba(23,32,29,.18); }
.theme-workbench { display: grid; grid-template-columns: minmax(250px,.6fr) minmax(0,1.4fr); gap: 1rem; align-items: start; }
#theme-form { display: grid; gap: 1rem; }
.theme-color-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0.55rem; }
.theme-color-grid label, .theme-font-grid label, .theme-logo-field, .brand-form-grid label, .lab-editor label { display: grid; gap: 0.3rem; margin: 0; }
.theme-color-grid label { grid-template-columns: 1fr 3rem; align-items: center; }
.theme-color-grid input[type="color"] { width: 3rem; min-height: 2.25rem; padding: 0.18rem; }
.theme-font-grid { display: grid; gap: 0.55rem; }
.theme-font-grid input { width: 100%; }
.theme-logo-field { padding-top: 0.85rem; border-top: 1px solid var(--line); }
.apuch-theme-meta { min-height: 9rem; padding: 1rem; border-left: 3px solid var(--accent); background: rgba(255,253,248,.5); }
.apuch-theme-meta strong { font-family: var(--sans); }
.apuch-theme-meta p { max-width: 40ch; margin: 0.45rem 0 1rem; color: var(--muted); font-size: 0.82rem; }
.apuch-theme-meta a { color: var(--accent); font-size: 0.78rem; }
.brand-subskill-form { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.brand-subskill-form h3 { margin: 0 0 0.3rem; }
.brand-subskill-form > p { max-width: 68ch; margin: 0 0 1rem; color: var(--muted); font-size: 0.82rem; }
.brand-form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0.7rem 1rem; margin-bottom: 1rem; }
.brand-form-grid .wide { grid-column: 1 / -1; }
.brand-form-grid input { width: 100%; }
.skill-lab { display: grid; grid-template-columns: minmax(290px,.62fr) minmax(0,1.38fr); gap: 1rem; align-items: start; }
.lab-editor { display: grid; gap: 0.75rem; }
.lab-editor select, .lab-editor textarea { width: 100%; }
.lab-editor textarea { min-height: 390px; line-height: 1.55; resize: vertical; }
.lab-warnings { min-height: 2rem; padding-top: 0.65rem; border-top: 1px solid var(--line); color: var(--warn); font-size: 0.78rem; }
.lab-warnings ul { margin: 0; padding-left: 1.2rem; }
.lab-ok { margin: 0; color: var(--ok); }
.skill-lab-frame { min-height: 540px; }
.skill-files-grid { display: grid; grid-template-columns: minmax(260px,.65fr) minmax(0,1.35fr); gap: 1rem; }
.skill-file-meta { display: grid; align-content: start; gap: 0.28rem; }
.skill-file-meta h3 { margin: 1rem 0 0.3rem; }
.skill-file-meta h3:first-child { margin-top: 0; }
.skill-file-meta ul { margin: 0; padding-left: 1.2rem; }
.skill-tree { max-height: 320px; overflow: auto; font-size: 0.72rem; }
.skill-raw { min-height: 520px; max-height: 720px !important; }
.inline-error { padding: 0.55rem 0.7rem; border-left: 3px solid var(--fail); background: #fceeee; color: var(--fail); font-size: 0.78rem; }
.stat-n { font-family: var(--mono); font-size: 1.6rem; font-weight: 600; color: var(--accent); }
.stat-l { font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }

.badge {
  display: inline-block; font-family: var(--mono); font-size: 0.68rem;
  padding: 0.15rem 0.45rem; border-radius: 4px; border: 1px solid var(--line);
  background: rgba(255,255,255,0.5); margin-right: 0.25rem;
}
.badge.ok { color: var(--ok); border-color: #8fc9a8; background: #e8f6ee; }
.badge.warn { color: var(--warn); border-color: #e0c878; background: #fff8e0; }
.badge.fail { color: var(--fail); border-color: #e0a0a0; background: #fceeee; }
.badge.mech { color: var(--accent-2); border-color: #e0b8a0; background: #fff0e8; }
.id-copy {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 500;
  border: 1px dashed var(--line); background: #fffdf8; color: var(--muted);
  border-radius: 6px; padding: 0.18rem 0.45rem; cursor: pointer;
  flex: 0 0 auto;
}
.id-copy:hover { color: var(--accent); border-color: var(--accent); }

.btn {
  font-family: var(--sans); font-weight: 600; font-size: 0.88rem;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  border-radius: 8px; padding: 0.45rem 0.9rem; cursor: pointer;
}
.btn:hover { filter: brightness(1.05); }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.danger { background: var(--fail); border-color: var(--fail); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.row { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }

input, select, textarea {
  font-family: var(--mono); font-size: 0.85rem; padding: 0.45rem 0.6rem;
  border: 1px solid var(--line); border-radius: 8px; background: #fffdf8; color: var(--ink);
  min-width: 0;
}
textarea { width: 100%; min-height: 120px; }
label { font-size: 0.78rem; color: var(--muted); display: block; margin-bottom: 0.2rem; }
.field { margin-bottom: 0.75rem; }

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { text-align: left; padding: 0.45rem 0.55rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: rgba(14, 107, 92, 0.06); }

.mono { font-family: var(--mono); font-size: 0.82rem; }
.muted { color: var(--muted); }
.pre {
  font-family: var(--mono); font-size: 0.78rem; white-space: pre-wrap; word-break: break-word;
  background: #1a1f18; color: #e8e4d8; padding: 0.85rem 1rem; border-radius: var(--radius);
  max-height: 420px; overflow: auto; margin: 0;
}
.pre.light {
  background: #fffdf8; color: var(--ink); border: 1px solid var(--line); max-height: 360px;
}

.panes { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.75rem; }
@media (max-width: 960px) {
  .panes { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: flex-start; }
}
.pane h3 { display: flex; justify-content: space-between; align-items: baseline; }
.hl-miss { background: #ffd0d0; }
.hl-alter { background: #ffe0a0; }
.hl-invent { background: #e0d0ff; }
.hl-hextra { background: #c8e8ff; }

.toolbar { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; align-items: center; }
.filter-chip {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 0.82rem; border: 1px solid var(--line); border-radius: 999px;
  padding: 0.2rem 0.65rem; background: #fffdf8; cursor: pointer;
}
.filter-chip:has(input:checked) { border-color: var(--accent); background: rgba(14, 107, 92, 0.08); }
.star {
  border: 0; background: transparent; color: var(--line); cursor: pointer;
  font-size: 1.05rem; line-height: 1; padding: 0 0.15rem 0 0;
}
.star.on { color: #c9a227; }
.star:focus-visible, .skill-view-tabs button:focus-visible, .btn:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
.search { flex: 1; min-width: 180px; }

.empty { padding: 2rem; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: var(--radius); }

.step-rail { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.75rem 0; }
.step-pill {
  font-family: var(--mono); font-size: 0.7rem; padding: 0.25rem 0.5rem;
  border-radius: 999px; border: 1px solid var(--line); background: #fff;
}
.step-pill.ok { border-color: #8fc9a8; color: var(--ok); }
.step-pill.fail { border-color: #e0a0a0; color: var(--fail); }
.step-pill.running { border-color: var(--accent); color: var(--accent); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: 0.55; } }

.graph { font-family: var(--mono); font-size: 0.78rem; }
.graph li { margin: 0.2rem 0; }

.skill-card h3 { font-family: var(--mono); font-size: 0.95rem; }
.stage-list { margin: 0.5rem 0 0; padding-left: 1.1rem; }
.stage-list li { margin: 0.45rem 0; }

.goal-card { margin: 0.6rem 0 0.75rem; }
.goal-line { margin: 0.2rem 0 0; font-size: 1.02rem; }

.stage-block { margin: 0 0 0.65rem; }
.stage-block .stat-l { margin-bottom: 0.35rem; }
.stage-bar {
  display: grid;
  gap: 0.4rem;
}
.stage-bar.core { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stage-bar.review { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stage-bar.optimize { grid-template-columns: minmax(0, 1fr) auto; align-items: stretch; }
.stage-tab {
  display: flex; flex-direction: column; gap: 0.15rem;
  text-decoration: none; color: inherit;
  border: 1px solid var(--line); background: var(--card);
  border-radius: var(--radius); padding: 0.45rem 0.55rem;
  min-width: 0;
}
.stage-tab:hover { border-color: var(--accent); }
.stage-tab.on { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(14, 107, 92, 0.18); }
.stage-tab.later { opacity: 0.85; }
.stage-key {
  font-family: var(--mono); font-size: 0.68rem; min-width: 1.15rem; text-align: center;
  border: 1px solid var(--line); border-radius: 4px; color: var(--muted); padding: 0 0.22rem;
}
.stage-tab.on .stage-key { border-color: var(--accent); color: var(--accent); }
.stage-tab-label { font-family: var(--mono); font-size: 0.8rem; font-weight: 600; }
.stage-tab-skill { font-family: var(--mono); font-size: 0.68rem; color: var(--accent); }
.stage-tab-goal {
  font-size: 0.74rem; color: var(--muted); line-height: 1.3;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.opt-list { display: flex; flex-wrap: wrap; gap: 0.3rem; align-items: center; padding: 0.15rem 0; }
@media (max-width: 860px) {
  .stage-bar.core { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stage-bar.optimize { grid-template-columns: 1fr; }
}

.studio-head { margin: 0 0 0.45rem; }
.studio-head h2 { margin: 0 0 0.15rem; }
.studio {
  display: grid;
  grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
  gap: 0.75rem;
  flex: 1 1 auto;
  min-height: 360px;
  height: clamp(360px, calc(100vh - 22rem), 70vh);
  align-items: stretch;
}
.studio.decking {
  height: clamp(520px, calc(100vh - 12rem), 88vh);
}
@media (max-width: 960px) {
  .studio {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 0;
  }
  .studio-nav { height: 42vh; min-height: 280px; max-height: 42vh; }
  .studio-pane { height: 52vh; min-height: 320px; }
}
.studio-nav, .studio-pane {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.7rem;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.studio-nav { gap: 0.5rem; }
.studio-nav .search { width: 100%; flex: 0 0 auto; }
.dir-count { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); flex: 0 0 auto; }
.dir-list {
  overflow-x: hidden;
  overflow-y: scroll;
  flex: 1 1 auto;
  min-height: 160px;
  height: 100%;
}
.dir-chapter {
  display: flex; align-items: center; gap: 0.2rem;
  margin: 0.15rem 0 0.05rem;
}
.dir-twist, .dir-chapter-name {
  border: 0; background: transparent; color: var(--ink); cursor: pointer;
  font-family: var(--sans); text-align: left;
}
.dir-twist {
  flex: 0 0 1.2rem; width: 1.2rem; padding: 0.15rem 0;
  font-size: 0.62rem; color: var(--muted);
}
.dir-chapter-name {
  flex: 1; min-width: 0; padding: 0.2rem 0.15rem;
  font-size: 0.78rem; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.dir-chapter[data-depth="1"] .dir-chapter-name,
.dir-chapter[data-depth="2"] .dir-chapter-name {
  font-weight: 500; color: var(--muted);
}
.dir-n { font-family: var(--mono); font-size: 0.64rem; color: var(--muted); font-weight: 400; }
.dir-branch {
  margin: 0 0 0.15rem 0.55rem;
  padding-left: 0.45rem;
  border-left: 1px solid var(--line);
}
.dir-item {
  display: block; width: 100%; text-align: left;
  border: 0; background: #fffdf8; color: var(--ink);
  padding: 0.4rem 0.5rem; border-radius: 6px; cursor: pointer;
  margin-bottom: 0.15rem;
}
.dir-item:hover, .dir-item.on { background: rgba(14, 107, 92, 0.1); }
.dir-id { font-family: var(--mono); font-size: 0.74rem; display: block; }
.dir-meta { font-family: var(--mono); font-size: 0.64rem; color: var(--accent); margin-left: 0.25rem; }
.dir-sub { display: block; font-size: 0.72rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#kbd-help {
  position: fixed; inset: 0; z-index: 80;
  background: rgba(26, 31, 24, 0.42);
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
}
#kbd-help[hidden] { display: none !important; }
.kbd-card {
  width: min(520px, 100%);
  background: #fffdf8; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem 1.15rem; box-shadow: 0 16px 48px rgba(26, 31, 24, 0.16);
}
.kbd-card table { margin-top: 0.7rem; }
.kbd-card td:first-child { width: 7.2rem; white-space: nowrap; }
.preview-head { display: flex; gap: 0.6rem; align-items: baseline; flex-wrap: wrap; margin-bottom: 0.6rem; flex: 0 0 auto; }
.preview-head h3 { margin: 0; }
.preview-body { flex: 1; min-height: 0; max-height: none; overflow: auto; }
.studio-pane .empty { flex: 1; }
.preview-frame {
  width: 100%; flex: 1; min-height: 280px; border: 1px solid var(--line); border-radius: 8px; background: #fff;
}
.studio-pane.decking { min-height: 0; }
.studio-pane.decking .preview-frame {
  flex: 1 1 auto; min-height: 0; background: #e6e0d2;
}
.studio-pane.theater {
  position: fixed; inset: 0; z-index: 70; border-radius: 0;
  background: #e6e0d2; padding: 0.7rem 0.9rem 0.9rem;
}
.deck-nav { display: flex; align-items: center; gap: 0.3rem; }
.deck-nav input {
  width: 4.4rem; text-align: right; font-family: var(--mono); font-size: 0.8rem;
}
.deck-meta {
  display: flex; flex-wrap: wrap; gap: 0.25rem 0.85rem;
  width: 100%; font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
}
.deck-meta b { color: var(--ink); font-weight: 600; }
.preview-head #deck-q { width: min(28rem, 100%); }
.deck-finder {
  flex: 0 1 auto; max-height: 32vh; overflow: auto;
  border: 1px solid var(--line); border-radius: 8px;
  background: #fffdf8; margin-bottom: 0.5rem;
}
.deck-hit, .deck-ch {
  display: block; width: 100%; text-align: left;
  border: 0; background: transparent; color: var(--ink);
  padding: 0.35rem 0.6rem; cursor: pointer; font-size: 0.8rem;
}
.deck-hit:hover, .deck-ch:hover { background: rgba(14, 107, 92, 0.1); }
.deck-ch { font-weight: 600; }

/* Home: operational overview */
.home-shell { display: flex; flex-direction: column; gap: 3.5rem; }
.home-hero {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  gap: clamp(2rem, 6vw, 5rem); align-items: center;
  min-height: 430px; padding: 2.75rem 0 1.25rem;
}
.home-hero-copy { max-width: 660px; }
.home-kicker, .home-label {
  display: block; font-family: var(--mono); font-size: 0.7rem;
  color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em;
}
.home-hero h1 {
  font-family: var(--sans); font-size: clamp(2.6rem, 5vw, 4.7rem);
  font-weight: 600; line-height: 0.98; letter-spacing: -0.055em;
  max-width: 12ch; margin: 1rem 0 1.15rem;
}
.home-hero-copy > p {
  max-width: 56ch; margin: 0; color: var(--muted);
  font-size: 1.05rem; line-height: 1.6;
}
.home-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 1.6rem; }
.home-actions .btn { display: inline-flex; align-items: center; text-decoration: none; }

.home-repo {
  border: 1px solid #aebfb3; border-radius: var(--radius);
  background: rgba(226, 235, 229, 0.78); padding: 1.2rem;
  box-shadow: 0 24px 70px rgba(36, 60, 44, 0.08);
}
.home-repo-head, .workflow-title-row, .activity-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
}
.home-repo-head strong { display: block; font-size: 1.05rem; margin-top: 0.2rem; }
.home-repo-badges { display: flex; gap: 0.25rem; flex-wrap: wrap; justify-content: flex-end; }
.home-repo-badges .badge, .home-gates .badge, .job-meta .badge, .source-grid .badge { margin: 0; }
.home-commit {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.65rem;
  align-items: start; padding: 1rem 0; margin: 1rem 0 0;
  border-top: 1px solid #b9c8bd; border-bottom: 1px solid #b9c8bd;
  color: var(--muted); font-size: 0.82rem;
}
.home-commit span { font-family: var(--mono); color: var(--ink); }
.home-gates { display: grid; gap: 0.15rem; padding: 0.8rem 0; }
.home-gates > div { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 1.7rem; font-size: 0.84rem; }
.home-repo-actions { display: flex; gap: 0.5rem; justify-content: flex-end; flex-wrap: wrap; }

.home-capacity {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.home-capacity a {
  display: grid; gap: 0.25rem; padding: 1.15rem;
  color: inherit; text-decoration: none; border-right: 1px solid var(--line);
}
.home-capacity a:last-child { border-right: 0; }
.home-capacity a:hover strong { color: var(--accent); }
.home-capacity strong { font-family: var(--mono); font-size: 1.55rem; letter-spacing: -0.04em; }
.home-capacity span { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }

.home-section { display: grid; gap: 1.2rem; }
.home-section-head { max-width: 690px; }
.home-section-head h2 { font-family: var(--sans); font-size: 1.75rem; letter-spacing: -0.035em; margin: 0 0 0.35rem; }
.home-section-head p { color: var(--muted); margin: 0; max-width: 62ch; }
.home-section-head.compact h2 { font-size: 1.5rem; }

.home-workflows { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr); gap: 1rem; }
.workflow-card {
  min-height: 300px; border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2rem); display: flex; flex-direction: column;
}
.workflow-pack { background: rgba(255, 253, 248, 0.78); }
.workflow-baslide { background: #dfeae4; border-color: #afc3b6; }
.workflow-card h3 { font-size: 1.25rem; letter-spacing: -0.025em; margin: 0.35rem 0 0; }
.workflow-card > p { color: var(--muted); max-width: 58ch; margin: 1.35rem 0 1.2rem; }
.workflow-card code { font-family: var(--mono); font-size: 0.78rem; color: var(--accent); }
.workflow-count { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); white-space: nowrap; }
.workflow-track {
  display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto;
  gap: 0.55rem; align-items: center; margin-top: 2.3rem;
}
.workflow-track span { font-family: var(--mono); font-size: 0.72rem; }
.workflow-track i { height: 1px; background: var(--line); position: relative; }
.workflow-track i::after {
  content: ""; position: absolute; right: 0; top: -2px;
  width: 5px; height: 5px; border-top: 1px solid var(--muted); border-right: 1px solid var(--muted); transform: rotate(45deg);
}
.workflow-links { display: flex; gap: 1rem; margin-top: auto; }
.workflow-links a, .workflow-primary-link, .activity-head a {
  color: var(--accent); font-size: 0.84rem; font-weight: 600; text-underline-offset: 0.2rem;
}
.baslide-metrics { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 2rem; }
.baslide-metrics > div { display: grid; gap: 0.1rem; padding-right: 0.75rem; border-right: 1px solid #afc3b6; }
.baslide-metrics > div:not(:first-child) { padding-left: 0.75rem; }
.baslide-metrics > div:last-child { border-right: 0; }
.baslide-metrics strong { font-family: var(--mono); font-size: 1.45rem; }
.baslide-metrics span { color: var(--muted); font-size: 0.72rem; }
.workflow-primary-link { margin-top: auto; }

.home-modules { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 0.8rem; }
.module-link {
  min-height: 175px; padding: 1.15rem; border: 1px solid var(--line); border-radius: var(--radius);
  color: inherit; text-decoration: none; display: grid; grid-template-columns: 1fr auto;
  align-content: start; gap: 0.75rem; background: rgba(255, 253, 248, 0.68);
  transition: transform 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}
.module-link:hover { border-color: var(--accent); background: #fffdf8; transform: translateY(-2px); }
.module-name { font-weight: 650; font-size: 1rem; }
.module-link > strong { font-family: var(--mono); color: var(--accent); font-size: 1.1rem; }
.module-link > p { grid-column: 1 / -1; color: var(--muted); margin: auto 0 0; font-size: 0.85rem; max-width: 46ch; }
.module-skills { grid-column: span 5; background: #e8eee9; }
.module-projects { grid-column: span 7; }
.module-runs { grid-column: span 4; }
.module-registry { grid-column: span 4; background: #efe8dc; }
.module-jobs { grid-column: span 4; }

.home-recent-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.home-activity { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: rgba(255, 253, 248, 0.66); }
.activity-head { align-items: center; padding: 0.9rem 1rem; border-bottom: 1px solid var(--line); }
.activity-head h3 { margin: 0; }
.activity-list > a {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 0.8rem 1rem; color: inherit; text-decoration: none;
  border-bottom: 1px solid rgba(207, 197, 178, 0.7);
}
.activity-list > a:last-child { border-bottom: 0; }
.activity-list > a:hover { background: rgba(14, 107, 92, 0.055); }
.activity-list a > span:first-child { min-width: 0; display: grid; gap: 0.15rem; }
.activity-list strong { font-size: 0.88rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.activity-list small, .activity-list time { color: var(--muted); font-size: 0.7rem; }
.activity-list time { flex: 0 0 auto; white-space: nowrap; }
.job-meta { display: flex; align-items: center; justify-content: flex-end; gap: 0.5rem; }
.home-empty { display: grid; gap: 0.3rem; padding: 1.25rem 1rem; }
.home-empty span { color: var(--muted); font-size: 0.82rem; }

.home-sources { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.home-sources summary {
  display: grid; grid-template-columns: 1fr auto auto; gap: 1rem; align-items: center;
  padding: 1rem 0; cursor: pointer; list-style: none;
}
.home-sources summary::-webkit-details-marker { display: none; }
.home-sources summary span { font-weight: 650; }
.home-sources summary strong { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); }
.home-sources summary small { color: var(--muted); }
.source-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.45rem 1rem; padding: 0 0 1rem; }
.source-grid > div { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; padding: 0.45rem 0; }
.source-grid .mono { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.home-foot { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: 0.72rem; padding-bottom: 1rem; }
.home-foot .mono { font-size: 0.7rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.home-loading { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-top: 3rem; }
.home-loading div { height: 150px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 253, 248, 0.4); }
.home-loading p { grid-column: 1 / -1; color: var(--muted); }

@media (max-width: 900px) {
  .skill-overview-grid, .theme-workbench, .skill-lab, .skill-files-grid { grid-template-columns: 1fr; }
  .skill-showcase-frame { min-height: 520px; }
  .skill-lab-frame { min-height: 440px; }
  .home-shell { gap: 2.75rem; }
  .home-hero { grid-template-columns: 1fr; min-height: 0; padding-top: 1.75rem; }
  .home-hero h1 { max-width: 13ch; }
  .home-workflows { grid-template-columns: 1fr; }
  .home-capacity { grid-template-columns: repeat(3, 1fr); }
  .home-capacity a:nth-child(3) { border-right: 0; }
  .home-capacity a:nth-child(n+4) { border-top: 1px solid var(--line); }
  .home-modules { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .module-link { grid-column: auto; }
  .module-projects { grid-column: span 2; }
  .home-recent-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .topbar { padding: 0.8rem 1rem; gap: 0.65rem; }
  .nav { width: 100%; gap: 0.1rem; flex-wrap: nowrap; }
  .nav a { flex: 0 0 auto; padding: 0.34rem 0.43rem; font-size: 0.78rem; }
  .nav-kbd { flex: 0 0 auto; width: 1.8rem; height: 1.8rem; }
  .app { padding-left: 1rem; padding-right: 1rem; }
  .home-shell { gap: 2.25rem; }
  .home-hero { gap: 1.6rem; }
  .home-hero h1 { font-size: clamp(2.35rem, 13vw, 3.2rem); }
  .home-capacity { grid-template-columns: repeat(2, 1fr); }
  .home-capacity a { border-top: 1px solid var(--line); }
  .home-capacity a:nth-child(-n+2) { border-top: 0; }
  .home-capacity a:nth-child(even) { border-right: 0; }
  .home-capacity a:last-child { border-right: 1px solid var(--line); }
  .workflow-track { grid-template-columns: 1fr; gap: 0.35rem; margin-top: 1.5rem; }
  .workflow-track i { width: 1px; height: 14px; margin-left: 0.2rem; }
  .workflow-track i::after { right: -2px; top: 9px; transform: rotate(135deg); }
  .home-modules { grid-template-columns: 1fr; }
  .module-link, .module-projects { grid-column: auto; min-height: 150px; }
  .activity-list > a { align-items: flex-start; }
  .activity-list time { display: none; }
  .source-grid { grid-template-columns: 1fr; }
  .home-foot { flex-direction: column; }
  .skills-hero { grid-template-columns: 1fr; gap: 1.25rem; padding-top: 1.5rem; }
  .skills-summary { grid-template-columns: repeat(3, 1fr); }
  .skills-summary div:first-child { border-left: 0; padding-left: 0; }
  .skills-summary div { padding: 0 0.65rem; }
  .capability-compass { grid-template-columns: 1fr; gap: 1.2rem; }
  .capability-tracks { grid-template-columns: 1fr; }
  .capability-tracks article { grid-template-columns: 5.5rem 1fr; padding: 0.55rem 0; border-left: 0; border-top: 1px solid var(--line); }
  .skill-viewbar { align-items: stretch; flex-direction: column; }
  .skill-view-tabs { display: grid; grid-template-columns: repeat(3, 1fr); }
  .skill-view-tabs button { padding-inline: 0.35rem; }
  .skill-viewbar > .btn { margin-left: 0; text-align: center; }
  .skill-grid { grid-template-columns: 1fr; }
  .skill-card .badge { display: none; }
  .skill-detail-actions .badge { display: none; }
  .skill-detail-hero { padding-top: 1.5rem; }
  .skill-detail-hero h1 { font-size: clamp(2.25rem, 12vw, 3.2rem); }
  .skill-highlight-list, .skill-workflow ol, .skill-samples, .brand-form-grid { grid-template-columns: 1fr; }
  .guideline-theme > summary { align-items: flex-start; }
  .skill-samples .pre { min-height: 300px; }
  .brand-form-grid .wide { grid-column: auto; }
  .skill-showcase-frame { min-height: 360px; }
  .skill-lab-frame { min-height: 320px; }
  .lab-editor textarea { min-height: 300px; }
}

@media (prefers-reduced-motion: reduce) {
  .module-link, .card.clickable { transition: none; }
}