:root {
  --bg: #f5f3ee;
  --paper: #fbfaf7;
  --ink: #121212;
  --ink-soft: #52504a;
  --line: #1b1b1b;
  --line-soft: #d4d0c7;
  --muted: #7a766d;
  --max: 1280px;
  --gutter: 28px;
  --content: 760px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.32), transparent 220px),
    var(--bg);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

code {
  font-family: "SFMono-Regular", ui-monospace, "Cascadia Code", Menlo, monospace;
}

.site-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245, 243, 238, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0.14em;
}

.nav {
  display: flex;
  gap: 18px;
  font-size: 0.84rem;
  color: var(--ink-soft);
}

.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter) 80px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: 34px;
  padding: 32px 0 22px;
  border-bottom: 1px solid var(--line);
}

.hero-kicker,
.section-kicker,
.meta-kicker,
.scene-label,
.note-label,
.skill-label,
.side-label {
  margin: 0 0 10px;
  font-size: 0.77rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-title,
.page-title {
  margin: 0;
  letter-spacing: -0.045em;
  line-height: 0.96;
}

.hero-title {
  font-size: clamp(2.1rem, 4.8vw, 3.7rem);
  max-width: 9ch;
}

.hero-copy,
.page-subtitle,
.section-summary,
.scene-entry-summary,
.machine-summary,
.skill-copy,
.skill-return,
.scene-block-copy,
.meta-copy,
.input-desc,
.prose p,
.prose li {
  color: var(--ink-soft);
}

.hero-copy {
  max-width: 38rem;
  margin-top: 16px;
  font-size: 1.03rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.42);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
}

.hero-link:hover {
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}

.hero-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-content: start;
}

.hero-note {
  padding: 14px 0 0;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-soft);
}

.hero-note strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 0.77rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-aside {
  display: grid;
  gap: 12px;
  align-content: start;
}

.note-card {
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
}

.note-card p {
  margin: 0;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 22px 0 28px;
  border-bottom: 1px solid var(--line);
}

.stat-value {
  display: block;
  font-size: 1.6rem;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.section {
  padding: 26px 0;
  border-bottom: 1px solid var(--line-soft);
}

.section-header,
.scene-block-head,
.page-meta-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
}

.section-header {
  margin-bottom: 16px;
}

.section-title,
.scene-block-title {
  margin: 0;
  font-size: 1.38rem;
  letter-spacing: -0.03em;
}

.scene-directory,
.scene-blocks,
.route-list {
  display: grid;
  gap: 0;
}

.scene-directory {
  border-top: 1px solid var(--line);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}

.scene-card {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.scene-card:nth-child(odd) {
  padding-right: 18px;
}

.scene-card:nth-child(even) {
  padding-left: 18px;
  border-left: 1px solid var(--line-soft);
}

.scene-index {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.scene-title {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.scene-desc {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.scene-sample {
  margin-top: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.scene-count {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.scene-entry,
.scene-block,
.route-item,
.machine-card,
.overview-card,
.side-card,
.skill-row {
  border-top: 1px solid var(--line-soft);
}

.scene-entry {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr) minmax(220px, 0.7fr);
  gap: 20px;
  padding: 16px 0;
}

.scene-meta-row,
.page-count {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.scene-entry-title {
  margin: 0 0 6px;
  font-size: 1.1rem;
}

.scene-links,
.machine-links-stack {
  display: grid;
  gap: 8px;
}

.compact-list {
  margin: 0;
  padding-left: 1rem;
}

.status-pill,
.count-pill,
.pill,
.skill-invoke {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  background: transparent;
}

.status-live,
.status-public {
  background: rgba(18, 18, 18, 0.06);
}

.status-coming-next {
  background: rgba(18, 18, 18, 0.02);
}

.status-sanitized-later,
.status-sanitized {
  background: rgba(18, 18, 18, 0.1);
}

.status-private-only {
  background: rgba(18, 18, 18, 0.14);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  border-color: var(--line-soft);
}

.muted {
  color: var(--muted);
}

.scene-block {
  padding: 22px 0 0;
}

.scene-block-summary {
  max-width: 32rem;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.scene-guide {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.guide-line {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 12px;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.guide-line span {
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scene-block-copy {
  max-width: 30rem;
}

.skill-table {
  display: grid;
}

.skill-head {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) minmax(180px, 0.9fr) minmax(190px, 1fr) minmax(170px, 0.8fr) 120px;
  gap: 18px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.skill-row {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) minmax(180px, 0.9fr) minmax(190px, 1fr) minmax(170px, 0.8fr) 120px;
  gap: 18px;
  padding: 14px 0;
  align-items: start;
}

.skill-name {
  margin: 0 0 5px;
  font-size: 1rem;
}

.skill-meta {
  color: var(--muted);
  font-size: 0.84rem;
}

.skill-contract {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.skill-scene-link {
  margin-bottom: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.skill-copy,
.skill-return,
.skill-io {
  font-size: 0.92rem;
}

.skill-label {
  margin-bottom: 8px;
}

.skill-call {
  display: grid;
  gap: 10px;
  justify-items: start;
}

.mono-link {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.source-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.detail-note {
  padding: 0 0 18px;
  border-bottom: 1px solid var(--line);
}

.source-kicker {
  margin: 0 0 10px;
  font-size: 0.77rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.detail-note-title {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.06;
  letter-spacing: -0.035em;
}

.detail-note-copy {
  max-width: 34rem;
  margin: 14px 0 0;
  color: var(--ink-soft);
}

.route-list {
  gap: 12px;
}

.endpoint-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.endpoint-card {
  display: block;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.endpoint-name {
  margin-bottom: 6px;
  font-size: 1rem;
}

.endpoint-desc {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.route-item {
  padding: 14px 0;
  font-size: 1rem;
}

.chain-arrow {
  margin: 0 10px;
  color: var(--muted);
}

.machine-grid,
.scene-overview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.machine-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.machine-card,
.overview-card {
  padding: 16px 0;
}

.machine-title {
  margin-bottom: 6px;
  font-size: 1rem;
}

.page-head {
  padding: 36px 0 20px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: clamp(2rem, 4.6vw, 3.5rem);
}

.page-subtitle {
  max-width: 40rem;
  margin-top: 12px;
}

.page-count {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.scene-overview {
  padding: 22px 0 8px;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, var(--content)) minmax(260px, 320px);
  gap: 52px;
  padding-top: 28px;
}

.detail-side {
  display: grid;
  gap: 12px;
  align-content: start;
}

.side-card {
  padding: 14px 0;
}

.side-label {
  margin-bottom: 10px;
}

.input-list {
  display: grid;
  gap: 12px;
}

.side-list {
  display: grid;
  gap: 8px;
  color: var(--ink-soft);
}

.input-name {
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.prose h1,
.prose h2,
.prose h3 {
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.prose h1 {
  font-size: 1.95rem;
}

.prose h2 {
  font-size: 1.3rem;
  margin-top: 2rem;
}

.prose h3 {
  font-size: 1.08rem;
  margin-top: 1.3rem;
}

.prose p,
.prose ul,
.prose pre {
  margin: 0.9rem 0;
}

.prose ul {
  padding-left: 1.15rem;
}

.prose pre {
  overflow: auto;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  padding: 14px;
}

.empty-state {
  padding: 18px 0;
  color: var(--ink-soft);
}

.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px var(--gutter) 40px;
  color: var(--muted);
  font-size: 0.84rem;
}

@media (max-width: 1080px) {
  .hero,
  .detail-grid,
  .scene-entry,
  .scene-grid,
  .machine-grid,
  .scene-overview,
  .endpoint-list,
  .skill-row {
    grid-template-columns: 1fr;
  }

  .hero-notes {
    grid-template-columns: 1fr;
  }

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

  .skill-head {
    grid-template-columns: 1.1fr 1fr 1fr 0.8fr 110px;
  }

  .skill-call {
    grid-auto-flow: column;
    justify-content: start;
    align-items: center;
  }
}

@media (max-width: 760px) {
  .topbar-inner,
  .page,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }

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

  .hero-actions {
    gap: 8px;
  }

  .hero-link {
    width: 100%;
    justify-content: center;
  }

  .section-header,
  .scene-block-head,
  .page-meta-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .scene-card:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .scene-card:nth-child(odd) {
    padding-right: 0;
  }

  .skill-head {
    display: none;
  }

  .guide-line {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .nav {
    display: none;
  }

  .machine-grid {
    grid-template-columns: 1fr;
  }
}