:root {
  --ds-ink: #f1f0e9;
  --ds-ink-soft: #c7cbc8;
  --ds-muted: #a4afad;
  --ds-paper: #101716;
  --ds-paper-soft: #182220;
  --ds-line: #35433f;
  --ds-accent: #ff925c;
  --ds-accent-ink: #161c19;
  --ds-warn: #ffbf75;
  --ds-ok: #a9d9ba;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; font-family: "Segoe UI", Arial, sans-serif; }
button, input, select, textarea { font: inherit; }
button, input, select { color: var(--ds-ink); }
button { touch-action: manipulation; }
button:disabled { cursor: default; opacity: .6; }
img, svg { max-width: 100%; }
img { display: block; height: auto; }
figure { margin: 0; }
p { max-width: 68ch; }
a { transition: color .15s ease, background .15s ease, border-color .15s ease; }
button { transition: background .15s ease, border-color .15s ease; }
code, kbd { font-family: "Cascadia Code", Consolas, monospace; font-size: inherit; }
::selection { background: var(--ds-accent); color: var(--ds-accent-ink); }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 10; padding: 12px 20px; background: var(--ds-accent); color: var(--ds-accent-ink); }
.skip-link:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--ds-line); }
.header-inner { min-height: 88px; display: flex; gap: 28px; justify-content: space-between; align-items: center; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ds-ink); text-decoration: none; font-weight: 800; white-space: nowrap; letter-spacing: -.025em; }
.brand-mark { display: inline-flex; width: 35px; height: 35px; background: var(--ds-accent); color: var(--ds-accent-ink); justify-content: center; align-items: center; font-weight: 900; border-radius: 5px; }
.brand-mark img { width: 35px; height: 35px; }
.main-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; }
.main-nav a { color: var(--ds-ink-soft); text-decoration: none; font-size: var(--ds-font-small); font-weight: 600; padding-block: 12px; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--ds-accent); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 34px; padding-block: 58px 46px; }
.hero-copy { min-width: 0; }
.eyebrow, .section-kicker { display: flex; align-items: center; gap: 10px; color: var(--ds-accent); text-transform: uppercase; letter-spacing: .13em; font-weight: 700; font-size: var(--ds-font-small); margin-bottom: 22px; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--ds-accent); flex-shrink: 0; }
.hero-copy h1 { max-width: 12ch; }
.hero-copy h1 span, .accent { color: var(--ds-accent); }
.hero-copy > p:not(.eyebrow) { color: var(--ds-ink-soft); max-width: 49ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
.ds-btn { border-radius: 5px; }
.ds-btn--primary:hover { background: var(--ds-warn); border-color: var(--ds-warn); }
.ds-btn--ghost:hover { background: var(--ds-paper-soft); border-color: var(--ds-muted); }
.trust-row { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--ds-muted); margin-top: 23px; font-size: var(--ds-font-small); }
.trust-row > * { font-size: inherit; }
.trust-row span::before { content: "✓"; color: var(--ds-ok); margin-right: 7px; }
.hero-art { position: relative; min-width: 0; }
.hero-art img { width: 100%; }
.hero-art figcaption { color: var(--ds-muted); font-size: var(--ds-font-small); text-align: center; margin-top: 8px; }
.stat-strip { display: grid; grid-template-columns: repeat(3, 1fr) auto; align-items: center; border-top: 1px solid var(--ds-line); border-bottom: 1px solid var(--ds-line); padding-block: 22px; margin-bottom: 4px; }
.stat-strip > * { padding-inline: 24px; border-right: 1px solid var(--ds-line); }
.stat-strip > :first-child { padding-left: 0; }
.stat-strip > :last-child { border-right: 0; }
.stat-strip > a { font-size: var(--ds-font-small); font-weight: 600; text-align: right; white-space: nowrap; }
.stat-strip strong { display: block; color: var(--ds-ink); }
.stat-strip span, .stat-strip p { display: block; color: var(--ds-muted); font-size: var(--ds-font-small); margin: 0; }
.section-head { display: flex; gap: 24px; justify-content: space-between; align-items: flex-end; margin-bottom: 25px; }
.section-head h2 { margin-bottom: 0; }
.section-head > p { max-width: 38ch; margin: 0; color: var(--ds-muted); }
.section-kicker { margin-bottom: 13px; }
.section-intro { color: var(--ds-ink-soft); margin-bottom: 25px; }
.code-panel { border: 1px solid var(--ds-line); border-radius: var(--ds-radius); padding: 24px; background: var(--ds-paper-soft); }
.toolbar { display: flex; gap: 16px; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; padding-bottom: 22px; border-bottom: 1px solid var(--ds-line); margin-bottom: 22px; }
.search-field { flex: 1 1 260px; font-size: var(--ds-font-small); font-weight: 600; color: var(--ds-ink-soft); }
.search-field input { margin-top: 7px; font-size: 1rem; font-weight: 400; }
.search-field label, .field label { display: block; font-size: var(--ds-font-small); font-weight: 600; color: var(--ds-ink-soft); margin-bottom: 7px; }
input[type="search"], input[type="number"], input[type="text"], select { display: block; width: 100%; min-height: 48px; border: 1px solid var(--ds-line); border-radius: 5px; background: var(--ds-paper); padding: 11px 14px; }
input::placeholder { color: var(--ds-muted); }
.filter-group { display: flex; flex-wrap: wrap; gap: 7px; min-width: 0; margin: 0; padding: 0; border: 0; }
.filter-group legend { padding: 0; margin-bottom: 7px; color: var(--ds-ink-soft); font-size: var(--ds-font-small); font-weight: 600; }
.filter-btn { min-height: 46px; border: 1px solid var(--ds-line); background: var(--ds-paper); border-radius: 5px; padding: 10px 15px; font-size: var(--ds-font-small); font-weight: 600; cursor: pointer; }
.filter-btn:hover { border-color: var(--ds-muted); }
.filter-btn[aria-pressed="true"] { border-color: var(--ds-accent); background: var(--ds-accent); color: var(--ds-accent-ink); }
.code-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.code-card { padding: 20px; background: var(--ds-paper); border: 1px solid var(--ds-line); border-radius: 6px; min-width: 0; }
.code-heading { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; justify-content: space-between; margin-bottom: 8px; }
.code-heading h3, .code-heading code { margin: 0; font-size: 1rem; font-weight: 800; overflow-wrap: anywhere; letter-spacing: .025em; }
.code-reward { margin-bottom: 6px; color: var(--ds-ink-soft); }
.code-meta, .code-meta p { font-size: var(--ds-font-small); color: var(--ds-muted); margin-bottom: 0; }
.code-actions { display: flex; align-items: center; gap: 16px; justify-content: space-between; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--ds-line); }
.badge { display: inline-flex; align-items: center; gap: 6px; border-radius: 3px; padding: 3px 8px; background: var(--ds-paper-soft); color: var(--ds-ok); font-size: var(--ds-font-small); font-weight: 600; white-space: nowrap; }
.badge--new { background: var(--ds-accent); color: var(--ds-accent-ink); }
.badge--muted { color: var(--ds-muted); }
.badge--warn { color: var(--ds-warn); }
.button-small { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 8px 15px; font-size: var(--ds-font-small); border: 1px solid var(--ds-line); color: var(--ds-ink); background: var(--ds-paper-soft); border-radius: 4px; font-weight: 600; cursor: pointer; text-decoration: none; }
.button-small:hover { border-color: var(--ds-accent); color: var(--ds-accent); }
.claim-check { display: inline-flex; gap: 8px; align-items: center; font-size: var(--ds-font-small); color: var(--ds-muted); cursor: pointer; min-height: 44px; }
input[type="checkbox"] { accent-color: var(--ds-accent); width: 18px; height: 18px; flex-shrink: 0; }
.code-card.is-claimed { opacity: .7; }
.code-card.is-claimed .code-heading code { text-decoration: line-through; }
.notice { border-left: 3px solid var(--ds-accent); padding: 16px 20px; margin-block: 22px; background: var(--ds-paper-soft); color: var(--ds-ink-soft); }
.notice p:last-child { margin-bottom: 0; }
.empty-state { text-align: center; padding: 32px 20px; color: var(--ds-muted); }
.result-count, .storage-note, .source-note { color: var(--ds-muted); font-size: var(--ds-font-small); }
.result-count { margin-bottom: 16px; }
.storage-note { margin-top: 16px; margin-bottom: 0; }
.guide-grid, .step-grid, .robot-grid, .combo-grid, .related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.guide-card, .step-card, .robot-card, .combo-card, .aside-card { padding: 26px; border: 1px solid var(--ds-line); border-radius: var(--ds-radius); background: var(--ds-paper-soft); min-width: 0; }
.guide-card { display: flex; flex-direction: column; }
a.guide-card { color: var(--ds-ink); text-decoration: none; }
a.guide-card:hover { border-color: var(--ds-accent); }
.guide-card h3 { margin-bottom: 12px; }
.guide-card p, .step-card p, .robot-card p, .combo-card p { color: var(--ds-ink-soft); }
.card-number { display: block; width: fit-content; color: var(--ds-accent); font-family: Consolas, monospace; font-size: var(--ds-font-small); font-weight: 700; margin-bottom: 28px; padding-bottom: 7px; border-bottom: 2px solid var(--ds-accent); }
.card-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: auto; padding-top: 15px; color: var(--ds-accent); text-decoration: none; font-weight: 600; }
.related-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.step-card { position: relative; }
.step-card p:last-child, .robot-card p:last-child, .combo-card p:last-child { margin-bottom: 0; }
.split-section { display: grid; grid-template-columns: 1.25fr 1fr; align-items: start; gap: 50px; }
.editorial p, .article-content p, .article-content li { color: var(--ds-ink-soft); }
.editorial h2, .article-content h2 { color: var(--ds-ink); }
.facts-panel { border-top: 2px solid var(--ds-accent); background: var(--ds-paper-soft); padding: 26px; }
.facts-panel dl { margin-bottom: 0; }
.facts-panel dl > div { border-bottom: 1px solid var(--ds-line); padding-block: 12px; }
.facts-panel dl > div:last-child { border-bottom: 0; }
.facts-panel dt { color: var(--ds-muted); font-size: var(--ds-font-small); }
.facts-panel dd { margin: 3px 0 0; font-weight: 600; }
.facts-panel dd + dt { border-top: 1px solid var(--ds-line); padding-top: 12px; margin-top: 12px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--ds-line); border-radius: 6px; margin-block: 22px; }
table { border-collapse: collapse; width: 100%; text-align: left; }
th, td { padding: 15px 18px; border-bottom: 1px solid var(--ds-line); vertical-align: top; }
th { background: var(--ds-paper-soft); color: var(--ds-ink); font-weight: 600; }
td { color: var(--ds-ink-soft); }
tr:last-child td { border-bottom: 0; }
table code { overflow-wrap: anywhere; }
caption { text-align: left; padding: 16px 18px; color: var(--ds-muted); }
.faq-list { border-top: 1px solid var(--ds-line); }
.faq-list details { padding: 20px 0; border-bottom: 1px solid var(--ds-line); }
.faq-list summary { cursor: pointer; font-weight: 600; padding-right: 22px; }
.faq-list details[open] summary { color: var(--ds-accent); margin-bottom: 12px; }
.faq-list details p { margin: 0 0 8px; color: var(--ds-ink-soft); }
.source-list { padding-left: 1.3em; }
.source-list li { margin-block: 12px; color: var(--ds-ink-soft); }
.source-note { display: block; margin-top: 6px; }
.page-hero { padding-block: 55px 32px; border-bottom: 1px solid var(--ds-line); margin-bottom: 38px; }
.page-hero h1 { max-width: 20ch; }
.page-hero > p { color: var(--ds-ink-soft); max-width: 62ch; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 48px; align-items: start; padding-bottom: 64px; }
.article-content { min-width: 0; }
.article-content > section { margin-block: 0 45px; }
.article-content > section:last-child { margin-bottom: 0; }
.article-content h2 { margin-top: 0; }
.article-content h3 { margin-top: 25px; }
.aside-card { padding: 22px; }
.aside-card p, .aside-card li { color: var(--ds-ink-soft); }
.aside-card ul { list-style: none; padding: 0; margin-bottom: 0; }
.aside-card li { padding-block: 7px; }
.robot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.robot-card .badge { margin-bottom: 14px; }
.robot-card h3 { margin-top: 0; }
.checklist { list-style: none; padding: 0; }
.checklist li { border-bottom: 1px solid var(--ds-line); padding: 12px 0; }
.checklist label { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; color: var(--ds-ink-soft); }
.checklist input { margin-top: 6px; }
.progress { color: var(--ds-ok); font-size: var(--ds-font-small); }
progress { display: block; width: 100%; height: 9px; accent-color: var(--ds-ok); margin-block: 12px 20px; }
.combo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.combo-card h3 { margin-top: 0; }
.combo-sequence { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-block: 18px; color: var(--ds-accent); }
.key, kbd { display: inline-flex; align-items: center; justify-content: center; background: var(--ds-paper); border: 1px solid var(--ds-line); border-bottom-width: 3px; padding: 5px 10px; border-radius: 4px; color: var(--ds-ink); }
.calculator { padding: 26px; border: 1px solid var(--ds-line); border-radius: var(--ds-radius); background: var(--ds-paper-soft); }
.calculator .field { margin-bottom: 16px; }
.calculator label.field { display: block; color: var(--ds-ink-soft); font-size: var(--ds-font-small); font-weight: 600; }
.calculator label.field input { margin-top: 7px; font-size: 1rem; font-weight: 400; }
.calculator .result { display: block; border-top: 1px solid var(--ds-line); padding-top: 20px; margin-top: 20px; color: var(--ds-ok); font-weight: 600; }
.related-grid .guide-card { padding: 22px; }
.site-footer { background: var(--ds-paper-soft); padding-block: 32px; margin-top: 15px; }
.site-footer .ds-wrap > p:first-child { font-size: var(--ds-font-small); }
.site-footer strong { color: var(--ds-ink); }
.site-footer .ds-fineprint { font-size: var(--ds-font-small); max-width: none; }
.site-footer nav { gap: 8px 18px; }
.site-footer nav a { padding-block: 7px; font-size: var(--ds-font-small); }
.legal-content { max-width: 78ch; padding-bottom: 60px; }
.legal-content h2 { margin-top: 38px; }
.legal-content p, .legal-content li { color: var(--ds-ink-soft); }
.toast { position: fixed; z-index: 20; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ds-accent); color: var(--ds-accent-ink); padding: 12px 20px; border-radius: 6px; max-width: calc(100% - 32px); font-weight: 600; font-size: var(--ds-font-small); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 900px) {
  .hero-grid { gap: 18px; padding-block: 38px; }
  .main-nav { gap: 8px 18px; }
  .guide-grid, .step-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide-card .card-number { margin-bottom: 18px; }
  .article-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .article-layout aside { order: 2; }
  .aside-card ul { display: flex; flex-wrap: wrap; gap: 8px 22px; }
  .split-section { gap: 28px; }
}
@media (max-width: 640px) {
  h1 { font-size: clamp(2.1rem, 8vw, 2.4rem); }
  .header-inner { min-height: 76px; gap: 10px; flex-wrap: wrap; padding-block: 16px 9px; }
  .main-nav { width: 100%; gap: 8px 22px; }
  .main-nav a { padding-block: 6px; }
  .hero-grid { grid-template-columns: 1fr; padding-block: 35px 24px; gap: 22px; }
  .hero-copy h1 { max-width: 14ch; }
  .hero-art { width: min(100%, 440px); margin-inline: auto; }
  .hero-art figcaption { margin-top: 0; }
  .eyebrow { margin-bottom: 18px; }
  .hero-actions { margin-top: 22px; }
  .trust-row { margin-top: 20px; }
  .stat-strip { padding-block: 18px; }
  .stat-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stat-strip > * { padding-inline: 12px; }
  .stat-strip > :nth-child(3) { border-right: 0; }
  .stat-strip > a { grid-column: 1 / -1; padding: 14px 0 0; margin-top: 16px; text-align: left; border-top: 1px solid var(--ds-line); }
  .section-head { display: block; }
  .section-head > p { margin-top: 14px; max-width: 68ch; }
  .code-panel { padding: 16px; }
  .toolbar { gap: 14px; }
  .search-field { flex-basis: 100%; }
  .filter-group { width: 100%; }
  .filter-btn { flex-grow: 1; padding-inline: 10px; }
  .code-grid, .robot-grid, .combo-grid, .related-grid, .split-section { grid-template-columns: 1fr; }
  .code-card { padding: 18px; }
  .guide-card, .step-card, .robot-card, .combo-card { padding: 23px; }
  .page-hero { padding-top: 35px; margin-bottom: 28px; }
  .page-hero h1 { overflow-wrap: anywhere; }
  .article-layout { padding-bottom: 38px; }
  .table-scroll table { min-width: 550px; }
  .site-footer .ds-wrap { gap: 12px; }
  .site-footer nav { gap: 3px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}