:root {
  color-scheme: light;

  /* Broadsheet design system — tokens */
  --color-bg: #f3f2f2;
  --color-surface: #eae9e9;
  --color-text: #201e1d;
  --color-accent: #0088b0;
  --color-accent-2: #d6006c;
  --color-divider: color-mix(in srgb, #0a303e 16%, transparent);

  --color-accent-100: #e9f8ff;
  --color-accent-200: #cbeeff;
  --color-accent-300: #99e0ff;
  --color-accent-400: #62c5ee;
  --color-accent-500: #38a6cf;
  --color-accent-600: #1186ac;
  --color-accent-700: #006786;
  --color-accent-800: #004961;
  --color-accent-900: #0a303e;

  --color-accent-2-100: #fff1f4;
  --color-accent-2-700: #aa0b56;
  --color-accent-2-800: #790e3d;

  --space-1: 5px;
  --space-2: 10px;
  --space-3: 15px;
  --space-4: 20px;
  --space-6: 30px;
  --space-8: 40px;

  --radius-sm: 1px;
  --radius-md: 2px;
  --radius-lg: 4px;

  /* Page — the catalog ground is the paper tinted toward the accent ramp. */
  --page-ground: color-mix(in srgb, var(--color-bg) 88%, var(--color-accent-200));
  --page-pad: clamp(20px, 5vw, 80px);
  --max: 1180px;

  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: "IBM Plex Sans JP", Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Roles used by the detail, connect and admin pages, mapped onto the ramp. */
  --paper: var(--page-ground);
  --surface: color-mix(in srgb, var(--color-bg) 78%, var(--color-accent-200));
  --ink: var(--color-accent-900);
  --muted: var(--color-accent-700);
  --faint: var(--color-accent-600);
  --line: var(--color-divider);
  --line-strong: color-mix(in srgb, var(--color-accent-900) 38%, transparent);
  --accent: var(--color-accent-600);
  --accent-soft: var(--color-accent-100);
  --danger: var(--color-accent-2-700);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--page-ground); color: var(--ink); font: 15px/1.7 var(--sans); }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
button, input, select, textarea { font: inherit; }
button, .button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
::selection { background: var(--color-accent-200); }

.site-header { position: sticky; top: 0; z-index: 20; background: var(--page-ground); }
.header-plate { height: 6px; background: var(--color-accent-900); }
.header-inner { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-6); padding: var(--space-3) var(--page-pad) var(--space-2); }
.brand { display: flex; align-items: baseline; gap: var(--space-2); color: var(--color-accent-900); }
.brand-name { font-weight: 600; font-size: 19px; letter-spacing: -.01em; }
.brand small { color: var(--color-accent-600); font-size: 11px; letter-spacing: .22em; }
.site-nav { display: flex; gap: var(--space-4); font-size: 15px; }
.site-nav a { color: var(--color-accent-700); padding-bottom: 2px; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--color-accent-900); }
.site-nav a[aria-current="page"] { color: var(--color-accent-900); border-bottom-color: var(--color-accent); }
.header-rule { height: 1px; background: var(--color-accent-900); }
.header-progress { position: relative; height: 2px; background: var(--color-accent-200); overflow: hidden; }
.header-progress span { position: absolute; inset: 0 auto 0 0; width: calc(var(--scroll-progress, 0) * 100%); background: var(--color-accent); }

main { max-width: var(--max); margin: auto; padding: 58px var(--page-pad) 96px; }
body.page-catalog main { max-width: none; padding: 0 var(--page-pad) 80px; }

/* Reveal — armed by the client script only, so the page stays readable without it. */
.js-reveal [data-reveal] { opacity: 0; translate: 0 10px; transition: opacity 1s ease, translate 1s cubic-bezier(.22,.7,.2,1); }
.js-reveal [data-reveal].is-revealed { opacity: 1; translate: 0 0; }

.catalog-hero { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 72px); align-items: start; padding: clamp(24px, 3.5vw, 48px) 0 var(--space-6); }
.catalog-hero .eyebrow { margin: 0 0 var(--space-2); font-family: var(--sans); font-size: 11px; line-height: 1.4; letter-spacing: .26em; text-transform: none; color: var(--color-accent-700); }
.catalog-hero h1 { margin: 0; font-size: clamp(34px, 4vw, 56px); font-weight: 600; line-height: 1.05; letter-spacing: -.02em; }
.hero-note { display: flex; flex-direction: column; gap: var(--space-4); }
.hero-lede { margin: 0; max-width: 38ch; font-size: 16px; line-height: 1.7; text-wrap: pretty; }
.hero-source { display: flex; align-items: flex-start; gap: var(--space-3); }
.hero-source-label { padding-top: 5px; white-space: nowrap; font-size: 11px; letter-spacing: .2em; color: var(--color-accent-600); }
.hero-source p { margin: 0; max-width: 44ch; font-size: 14px; line-height: 1.6; color: var(--color-accent-800); text-wrap: pretty; }

.catalog-tools { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--space-4); padding-bottom: var(--space-4); border-bottom: 1px solid var(--color-divider); }
.catalog-controls { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-6); }
.search-field { display: flex; flex-direction: column; gap: 6px; }
.search-field span { font-size: 10px; letter-spacing: .24em; color: var(--color-accent-600); }
.search-field input { width: min(320px, 60vw); padding: 4px 0; border: 0; border-bottom: 1px solid var(--color-accent-900); border-radius: 0; background: transparent; color: var(--color-accent-900); font-size: 17px; outline-offset: 4px; }
.search-field input::placeholder { color: var(--color-accent-600); }
.filter-row { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.filter-button { padding: 5px 14px; border: 1px solid var(--color-accent-400); border-radius: var(--radius-md); background: transparent; color: var(--color-accent-700); font-size: 14px; }
.filter-button:hover { border-color: var(--color-accent-700); color: var(--color-accent-900); }
.filter-button[aria-pressed="true"] { border-color: var(--color-accent-900); background: var(--color-accent-900); color: var(--color-bg); }
.catalog-count { margin: 0; white-space: nowrap; font-size: 11px; letter-spacing: .2em; color: var(--color-accent-600); }

.skill-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 400px), 1fr)); gap: clamp(40px, 6vw, 80px) clamp(40px, 6vw, 88px); padding-top: clamp(48px, 6vw, 80px); }
.skill-card { display: flex; align-items: flex-start; gap: var(--space-4); color: var(--color-accent-900); transition: translate .5s cubic-bezier(.2,.7,.2,1); }
.skill-card:hover { translate: 2px 0; }
.skill-number { flex: 0 0 34px; padding-top: 7px; font-size: 15px; letter-spacing: .14em; font-variant-numeric: tabular-nums; color: var(--color-accent-500); }
.skill-body { display: flex; flex-direction: column; gap: var(--space-2); flex: 1 1 auto; min-width: 0; }
.skill-heading { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2); }
.skill-name { font-size: 23px; font-weight: 600; line-height: 1.3; letter-spacing: -.01em; }
.skill-slug { font-size: 13px; letter-spacing: .02em; color: var(--color-accent-700); }
.skill-summary { font-size: 15px; line-height: 1.75; color: var(--color-accent-800); text-wrap: pretty; }
.skill-card .tags { gap: 6px; padding-top: 2px; }
.skill-meta { display: flex; align-items: baseline; gap: var(--space-2); margin-top: var(--space-1); padding-top: var(--space-1); border-top: 1px solid var(--color-divider); font-size: 12px; letter-spacing: .12em; color: var(--color-accent-600); }
.skill-version { color: var(--color-accent-900); }
.skill-arrow { margin-left: auto; color: var(--color-accent); }
.empty-state { padding: clamp(40px, 8vw, 96px) 0; font-size: 19px; color: var(--color-accent-600); }

.eyebrow { margin: 0 0 12px; color: var(--accent); font: 11px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
h1 { margin: 0; max-width: 780px; font-size: clamp(32px, 4vw, 48px); line-height: 1.08; letter-spacing: -.035em; font-weight: 620; }
.page-intro { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(240px, .7fr); gap: 48px; align-items: center; padding-bottom: 42px; border-bottom: 1px solid var(--line-strong); }
.page-intro h1 { text-wrap: balance; }
.lede { margin: 22px 0 0; max-width: 640px; color: var(--muted); font-size: 15px; }
.intro-note { color: var(--muted); border-left: 1px solid var(--line-strong); padding-left: 20px; }
.intro-note strong { display: block; color: var(--ink); font: 12px var(--mono); margin-bottom: 6px; }

.tags { display: flex; flex-wrap: wrap; gap: 5px; }
.tags-spaced { margin-top: 16px; }
.tag { display: inline-flex; align-items: center; padding: 3px 10px; border: 1px solid var(--color-accent-400); border-radius: calc(var(--radius-md) * .75); color: var(--color-accent-700); font-size: 11px; line-height: 1.5; letter-spacing: .02em; }

.detail-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 36px; padding-bottom: 38px; border-bottom: 1px solid var(--line-strong); }
.back-link { display: inline-block; margin-bottom: 32px; color: var(--muted); }
.detail-header h1 { font-size: clamp(32px, 4vw, 48px); }
.slug-line { color: var(--muted); font: 12px var(--mono); margin: 15px 0 0; }
.action-stack { display: flex; align-items: flex-end; gap: 8px; }
.button { display: inline-flex; min-height: 40px; align-items: center; justify-content: center; padding: 0 14px; border: 1px solid var(--color-accent-900); background: var(--color-accent-900); color: var(--color-bg); border-radius: var(--radius-md); font-size: 14px; }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.button.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); background: transparent; }
.button:disabled { opacity: .55; cursor: wait; }
.copy-source { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.detail-grid { display: grid; grid-template-columns: 220px minmax(0, 720px); gap: 64px; padding-top: 44px; }
.metadata { align-self: start; position: sticky; top: 94px; }
.metadata dl { margin: 0; }
.metadata-row { padding: 11px 0; border-bottom: 1px solid var(--line); }
.metadata dt { color: var(--faint); font: 10px var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.metadata dd { margin: 5px 0 0; }
.content-section { padding: 0 0 46px; }
.content-section + .content-section { padding-top: 42px; border-top: 1px solid var(--line); }
.section-label { color: var(--accent); margin: 0 0 18px; font: 10px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.content-section h2 { margin: 0 0 20px; font-size: 23px; line-height: 1.3; letter-spacing: -.025em; }
.content-section ul, .content-section ol { padding-left: 20px; }
.content-section li + li { margin-top: 7px; }
.prose h2 { margin-top: 38px; }
.prose h3 { margin: 28px 0 10px; font-size: 16px; }
.prose p { margin: 0 0 16px; }
.prose pre { overflow: auto; border: 1px solid var(--line); background: var(--surface); padding: 16px; border-radius: var(--radius-lg); }
.prose code, .code-block { font-family: var(--mono); font-size: 12px; }
.prose code { background: var(--color-accent-100); padding: 2px 5px; border-radius: var(--radius-sm); }
.prompt-example { border-left: 2px solid var(--color-accent); padding: 3px 0 3px 16px; margin: 0 0 12px; }
.version-row { display: grid; grid-template-columns: 90px 1fr 120px; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); }

.connect-grid { display: grid; grid-template-columns: 220px minmax(0, 720px); gap: 64px; padding-top: 48px; }
.connect-aside { color: var(--muted); }
.status-line { padding: 12px 0; border-top: 1px solid var(--line); }
.status-line strong { display: block; color: var(--ink); }
.setup-section { padding: 0 0 48px; }
.setup-section + .setup-section { border-top: 1px solid var(--line); padding-top: 44px; }
.setup-section h2 { font-size: 24px; margin: 0 0 10px; }
.setup-section p { color: var(--muted); }
.code-panel { position: relative; margin-top: 18px; }
.code-panel pre { margin: 0; background: var(--color-accent-900); color: var(--color-accent-100); padding: 20px; overflow: auto; border-radius: var(--radius-lg); font: 12px/1.7 var(--mono); }
.code-panel .copy-code { position: absolute; top: 9px; right: 9px; min-height: 30px; padding: 0 9px; border: 1px solid var(--color-accent-700); background: var(--color-accent-800); color: var(--color-accent-100); border-radius: var(--radius-sm); font-size: 12px; }
.callout { border: 1px solid var(--line); background: var(--surface); padding: 18px; margin-top: 18px; color: var(--muted); }
.callout strong { color: var(--ink); }

.admin-grid { display: grid; grid-template-columns: minmax(320px, .8fr) minmax(0, 1.2fr); gap: 42px; padding-top: 44px; }
.panel { border-top: 1px solid var(--line-strong); padding-top: 16px; }
.panel-spaced { margin-top: 44px; }
.panel h2 { margin: 0 0 18px; font-size: 19px; }
.form-row { display: grid; gap: 6px; margin-bottom: 14px; }
.form-row label { color: var(--muted); font-size: 12px; }
.form-row input, .form-row select, .form-row textarea { width: 100%; border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius-md); padding: 10px 11px; color: var(--ink); }
.checks { display: flex; gap: 16px; margin: 12px 0 18px; }
.checks label { display: flex; align-items: center; gap: 7px; }
.issued-token { margin-top: 18px; }
.issued-token textarea { min-height: 90px; font: 11px/1.5 var(--mono); }
.skill-admin-row, .token-row, .log-row { display: grid; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); align-items: center; }
.skill-admin-row { grid-template-columns: 1fr 90px auto; }
.token-row { grid-template-columns: 1fr 150px auto; }
.log-row { grid-template-columns: 150px 1fr 120px 80px; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); font-size: 11px; }
.state { display: inline-block; border: 1px solid var(--line); padding: 2px 6px; border-radius: var(--radius-sm); font: 10px var(--mono); }
.state.memo { color: var(--muted); }
.state.revoked { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--line)); }

.site-footer { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--space-4); margin-top: clamp(48px, 8vw, 120px); padding: var(--space-4) var(--page-pad) var(--space-8); border-top: 3px solid var(--color-accent-900); font-size: 12px; letter-spacing: .18em; color: var(--color-accent-700); }
.site-footer span:first-child { color: var(--color-accent-900); }

@media (max-width: 900px) {
  main { padding-top: 38px; }
  .catalog-hero, .page-intro, .detail-header, .detail-grid, .connect-grid, .admin-grid { grid-template-columns: 1fr; }
  .intro-note { display: none; }
  .metadata { position: static; }
  .metadata dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 18px; }
  .action-stack { align-items: flex-start; }
}

@media (max-width: 620px) {
  .brand small { display: none; }
  .site-nav { gap: var(--space-3); }
  h1 { font-size: 38px; }
  .catalog-controls { gap: var(--space-4); }
  .search-field input { width: min(100%, 70vw); }
  .detail-header { gap: 22px; }
  .action-stack { flex-wrap: wrap; }
  .metadata dl { grid-template-columns: 1fr; }
  .version-row, .skill-admin-row, .token-row, .log-row { grid-template-columns: 1fr; }
  .site-footer { display: block; }
  .site-footer span { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
  .js-reveal [data-reveal] { opacity: 1; translate: none; }
}