:root {
  color-scheme: light;
  --ink: #17191b;
  --paper: #f7f7f4;
  --accent: #1a9ed2;
  --danger: #c33131;
  --ok: #16734a;
  --muted: color-mix(in srgb, var(--ink) 66%, var(--paper));
  --line: color-mix(in srgb, var(--ink) 18%, var(--paper));
  --wash: color-mix(in srgb, var(--accent) 8%, var(--paper));
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  --type-xs: .75rem;
  --type-sm: .875rem;
  --type-base: 1rem;
  --type-lg: 1.25rem;
  --type-xl: 1.75rem;
  font-family: var(--font-sans);
  font-size: var(--type-base);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #f1f1ee;
  --paper: #141518;
  --accent: #38b9e9;
  --danger: #ff7272;
  --ok: #63d795;
}
@media (prefers-color-scheme: dark) {
  html[data-theme="auto"] {
    color-scheme: dark;
    --ink: #f1f1ee;
    --paper: #141518;
    --accent: #38b9e9;
    --danger: #ff7272;
    --ok: #63d795;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.45; }
a { color: var(--accent); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
button, input, select, textarea { font: inherit; }
button { color: inherit; cursor: pointer; }
img { max-width: 100%; }
code, pre { font-family: var(--font-mono); }
code { overflow-wrap: anywhere; }
[hidden] { display: none !important; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2 { text-wrap: balance; }
p { text-wrap: pretty; }
h1 { font-size: var(--type-xl); line-height: 1.12; letter-spacing: -.04em; }
h2 { font-size: var(--type-lg); line-height: 1.25; letter-spacing: -.025em; }
h3, h4 { font-size: var(--type-base); line-height: 1.3; }
main { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header { width: min(1220px, calc(100% - 32px)); min-height: 56px; margin: 0 auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; justify-self: start; gap: 7px; color: var(--ink); text-decoration: none; font-size: var(--type-sm); font-weight: 800; }
.brand img { width: 30px; height: 30px; }
.site-nav { position: relative; display: grid; grid-template-columns: repeat(2, minmax(92px, 1fr)); align-items: center; min-height: 42px; }
.site-nav a { position: relative; z-index: 1; padding: 10px 14px; color: var(--muted); text-align: center; text-decoration: none; font-size: var(--type-sm); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.nav-glider { position: absolute; z-index: 0; left: 0; bottom: 2px; width: 50%; height: 2px; background: var(--accent); transition: transform 180ms ease; }
.site-nav[data-active="how"] .nav-glider { transform: translateX(100%); }
.header-actions { display: flex; justify-self: end; align-items: center; gap: 12px; }
.theme-toggle { width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 50%; background: transparent; font-size: var(--type-base); }
.theme-toggle:hover { border-color: var(--accent); }
.account-link { color: var(--ink); text-decoration: none; font-size: var(--type-sm); font-weight: 650; white-space: nowrap; }
.catalog-intro { padding: 20px 0 12px; }
.catalog-intro h1 { margin-bottom: 8px; }
.trust-line { color: var(--muted); font-size: var(--type-sm); }
.trust-line strong { color: var(--ink); }
.trust-line a { margin-left: 4px; white-space: nowrap; }
.search-form { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; margin: 10px 0 6px; }
.search-form input, .account-form input, .account-form select, .report-section select, .report-section textarea { width: 100%; min-width: 0; min-height: 42px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink); }
.search-form input:focus, .account-form input:focus, .account-form select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.family-filters { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 12px; }
.family-filters a { padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: var(--type-xs); font-weight: 700; text-decoration: none; }
.family-filters a:hover, .family-filters a[aria-current="page"] { border-color: var(--accent); background: var(--wash); color: var(--ink); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 8px 14px; border: 1px solid var(--accent); border-radius: 8px; background: var(--accent); color: var(--ink); font-size: var(--type-sm); font-weight: 750; text-decoration: none; }
.button:hover { filter: brightness(1.05); }
.button.secondary { border-color: var(--line); background: transparent; color: var(--ink); }
.catalog-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin: 8px 0; color: var(--muted); font-size: var(--type-xs); }
.skill-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; align-items: stretch; }
.skill-card { min-width: 0; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); overflow: hidden; transition: border-color 150ms ease, transform 150ms ease; }
.skill-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill-card.is-hidden { display: none; }
.skill-card-link { display: flex; height: 100%; flex-direction: column; padding: 10px; color: var(--ink); text-decoration: none; }
.skill-art { height: 92px; margin: -10px -10px 9px; background: var(--wash); overflow: hidden; }
.skill-art img { display: block; width: 100%; height: 100%; padding: 4px; object-fit: contain; }
.card-title-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; min-height: 24px; }
.family-chip, .grade { display: inline-flex; align-items: center; width: fit-content; max-width: 100%; padding: 3px 8px; border: 1px solid var(--line); border-radius: 999px; font-size: var(--type-xs); font-weight: 700; line-height: 1.2; }
.family-chip { color: var(--muted); }
.grade { border-color: var(--accent); color: var(--accent); }
.grade-incomplete, .grade-f, .grade-not-offered, .grade-under-review { border-color: var(--danger); color: var(--danger); }
.skill-card h2 { margin: 8px 0 3px; font-size: var(--type-base); }
.skill-promise { display: -webkit-box; min-height: 1.45em; overflow: hidden; color: var(--muted); font-size: var(--type-sm); -webkit-box-orient: vertical; -webkit-line-clamp: 1; }
.card-scores { display: grid; grid-template-columns: 1fr; gap: 4px; margin: 10px 0 0; padding-top: 8px; border-top: 1px solid var(--line); }
.card-scores > div { display: grid; grid-template-columns: 96px minmax(0, 1fr); align-items: baseline; gap: 8px; }
.card-scores dt { color: var(--muted); font-size: var(--type-xs); }
.score-help { border-bottom: 1px dotted currentColor; cursor: help; }
.score-help:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.card-scores dd { margin: 0; overflow-wrap: anywhere; font-size: var(--type-xs); font-weight: 650; }
.card-scores dd strong { font-size: var(--type-sm); }
.card-scores dd span { margin-left: 2px; color: var(--muted); }
.flag-notice { margin-top: 8px; padding-left: 8px; border-left: 2px solid var(--danger); color: var(--danger); font-size: var(--type-xs); }
.empty-state { padding: 14px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); font-size: var(--type-sm); }
.how-section { margin: 26px 0 0; padding: 18px 0; border-top: 1px solid var(--line); }
.how-section h2 { margin-bottom: 6px; }
.how-section p { max-width: 820px; margin: 5px 0; color: var(--muted); font-size: var(--type-sm); }
.eyebrow { margin-bottom: 4px; color: var(--accent); font-size: var(--type-xs); font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.text-link { font-size: var(--type-sm); font-weight: 700; }
footer { width: min(1220px, calc(100% - 32px)); display: flex; justify-content: space-between; gap: 12px; margin: 24px auto 0; padding: 12px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: var(--type-xs); }
footer a { color: var(--muted); }
.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; }

/* Detail, sign-in, and account surfaces */
.skill-detail { padding-top: 12px; }
.back-link { display: inline-block; margin-bottom: 8px; color: var(--muted); font-size: var(--type-sm); text-decoration: none; }
.skill-summary { display: grid; grid-template-columns: 176px minmax(0, 1fr); gap: 12px 20px; align-items: center; padding: 8px 0 14px; border-bottom: 1px solid var(--line); }
.skill-detail-art { grid-row: span 2; width: 176px; height: 118px; padding: 6px; border-radius: 10px; background: var(--wash); object-fit: contain; }
.skill-summary-copy h1 { margin: 6px 0 4px; }
.skill-detail-promise { color: var(--muted); font-size: var(--type-sm); }
.detail-scores { grid-column: 1 / -1; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0; padding-top: 10px; }
.detail-scores > div { grid-template-columns: auto minmax(0, 1fr); }
.score-note { grid-column: 1 / -1; color: var(--muted); font-size: var(--type-xs); }
.example-strip { padding: 14px 0; border-bottom: 1px solid var(--line); }
.example-strip h2 { margin-bottom: 8px; }
.example-strip > div { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.example-strip p { margin: 0; color: var(--muted); font-size: var(--type-sm); }
.example-strip strong { color: var(--ink); }
.use-section, .report-section { padding: 16px 0; border-bottom: 1px solid var(--line); }
.section-title-row h2 { margin-bottom: 8px; }
.skill-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 8px 0; }
.copy-button, .text-button { min-height: 38px; padding: 7px 12px; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--ink); font-size: var(--type-sm); }
.copy-button:hover, .text-button:hover { border-color: var(--accent); }
.use-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; padding-left: 20px; color: var(--muted); font-size: var(--type-sm); }
.copy-source { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: pre; border: 0; }
.instruction-details, .evidence-details, .report-extra { margin: 10px 0; border-top: 1px solid var(--line); padding-top: 8px; }
.instruction-details summary, .evidence-details summary, .report-extra summary { cursor: pointer; font-size: var(--type-sm); font-weight: 700; }
.account-prompt { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: var(--type-sm); }
.report-section h2 { margin-bottom: 6px; }
.report-section > p { margin-bottom: 8px; color: var(--muted); font-size: var(--type-sm); }
.report-section form { display: grid; gap: 8px; max-width: 620px; }
.outcome-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.report-extra[open] { display: grid; gap: 7px; }
.report-extra label, .account-form label { font-size: var(--type-sm); font-weight: 700; }
.report-section textarea { resize: vertical; }
.evidence-details { margin: 18px 0; }
.evidence-details > p, .evidence-details li { margin: 8px 0; color: var(--muted); font-size: var(--type-sm); }
.evidence-details ul { padding-left: 20px; }
pre { max-width: 100%; padding: 10px; overflow: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--wash); white-space: pre-wrap; overflow-wrap: anywhere; font-size: var(--type-xs); }
.small-note { color: var(--muted); font-size: var(--type-xs); }
.feedback-success { color: var(--ok); }
.feedback-error, .form-error { color: var(--danger); }

.account-main { max-width: 900px; padding-top: 18px; }
.account-panel, .account-section { margin: 12px 0; padding: 14px 0; border-bottom: 1px solid var(--line); }
.account-panel h1 { margin-bottom: 6px; }
.account-panel > p { margin: 6px 0; color: var(--muted); font-size: var(--type-sm); }
.account-panel form { margin-top: 10px; }
.account-section h2 { margin-bottom: 10px; }
.account-section h3 { margin: 14px 0 6px; }
.account-form { display: grid; gap: 7px; max-width: 550px; margin: 12px 0; }
.check-label { display: flex; align-items: center; gap: 8px; font-size: var(--type-sm); font-weight: 500; }
.account-form .check-label input { width: auto; min-height: 0; margin: 0; padding: 0; }
.inline-form { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.form-message { margin: 8px 0; padding: 8px 10px; border-left: 2px solid var(--accent); color: var(--ink); font-size: var(--type-sm); }
.form-message.form-error { border-color: var(--danger); color: var(--danger); }
.one-time-key { padding: 10px; border: 1px solid var(--accent); border-radius: 8px; overflow-wrap: anywhere; }
.table-wrap { width: 100%; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: var(--type-sm); }
.data-table th, .data-table td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { font-weight: 700; }
.data-table code { font-size: var(--type-xs); }
.usage-totals { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 10px 0; }
.usage-totals div { padding: 10px; border: 1px solid var(--line); border-radius: 8px; }
.usage-totals dt { color: var(--muted); font-size: var(--type-xs); }
.usage-totals dd { margin: 4px 0 0; font-size: var(--type-lg); font-weight: 750; }
.month { color: var(--muted); font-size: var(--type-sm); font-weight: 500; }

/* Existing evidence and method pages share the same restrained frame. */
.detail-main, .ranking-main, .pipeline-main { padding-top: 16px; }
.hero { max-width: 840px; padding: 12px 0 18px; }
.lead { max-width: 760px; margin-top: 6px; color: var(--muted); font-size: var(--type-sm); }
.limits-panel, .evidence-panel, .finding, .scanner-row, .connection-card, .pipeline-card, .pipeline-section,
.pipeline-section .draft-card, .receipt-panel, .benchmark-summary { padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.limits-panel { margin: 16px 0; }
.evidence-grid, .connections-grid, .example-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.metadata-list { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: 5px 10px; font-size: var(--type-sm); }
.metadata-list dd { margin: 0; overflow-wrap: anywhere; }
.metadata-list dt, .ranking-table thead th { color: var(--muted); }
.scanner-list, .finding-list, .draft-list { display: grid; gap: 8px; }
.scanner-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.status, .severity { padding: 3px 8px; border: 1px solid var(--line); border-radius: 999px; font-size: var(--type-xs); }
.status-completed { color: var(--ok); }
.status-failed, .severity-critical, .severity-high, .severity-medium { color: var(--danger); }
.rank-number, .uplift-value { color: var(--accent); font-weight: 750; }
.ranking-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
.ranking-table { width: 100%; border-collapse: collapse; font-size: var(--type-sm); }
.ranking-table th, .ranking-table td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; }
.pipeline-title-row, .section-heading, .pipeline-intent-row, .actions { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.pipeline-form { display: grid; gap: 8px; }
.pipeline-form label { font-size: var(--type-sm); font-weight: 700; }
.pipeline-form textarea, .pipeline-form input, .pipeline-form select { width: 100%; min-height: 40px; padding: 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink); }
.pipeline-code pre, .draft-text { max-height: 28rem; overflow: auto; white-space: pre-wrap; }

@keyframes card-enter { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.card-entering { animation: card-enter 180ms ease-out both; }
.card-exiting { animation: card-enter 120ms ease-in reverse both; }
.skill-card[data-transitioning] .skill-art, .skill-detail-art { view-transition-name: skill-illustration; }
@view-transition { navigation: auto; }
::view-transition-old(skill-illustration), ::view-transition-new(skill-illustration) { animation-duration: 180ms; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media (max-width: 760px) {
  .site-header { grid-template-columns: 1fr auto; gap: 4px 8px; padding: 5px 0; }
  .site-nav { grid-column: 1 / -1; grid-row: 2; justify-self: center; min-height: 34px; }
  .site-nav a { padding: 6px 15px; }
  .header-actions { grid-column: 2; grid-row: 1; }
  .search-form { grid-template-columns: minmax(0, 1fr); }
  .search-form input { grid-column: 1 / -1; }
  .search-form button { grid-column: 1 / -1; }
  .skill-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skill-summary { grid-template-columns: 128px minmax(0, 1fr); gap: 10px; }
  .skill-detail-art { width: 128px; height: 94px; }
  .detail-scores { grid-template-columns: 1fr; }
  .detail-scores > div { grid-template-columns: 100px minmax(0, 1fr); }
  .evidence-grid, .connections-grid { grid-template-columns: 1fr; }
}
@media (max-width: 430px) {
  main, footer, .site-header { width: calc(100% - 24px); }
  .site-header { min-height: 60px; }
  .brand img { width: 26px; height: 26px; }
  .account-link { font-size: var(--type-xs); }
  .catalog-intro { padding-top: 14px; }
  .catalog-intro h1 { max-width: 330px; }
  .trust-line { max-width: 360px; }
  .search-form { grid-template-columns: 1fr; }
  .skill-grid { grid-template-columns: 1fr; gap: 8px; }
  .skill-art { height: 78px; }
  .skill-card-link { padding: 8px; }
  .skill-art { margin: -8px -8px 7px; }
  .skill-card h2 { margin-top: 6px; }
  .skill-summary { grid-template-columns: 1fr; }
  .skill-detail-art { grid-row: auto; width: 100%; height: 120px; }
  .example-strip > div, .use-steps { grid-template-columns: 1fr; gap: 8px; }
  .outcome-buttons { display: grid; grid-template-columns: 1fr; }
  .usage-totals { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
  .usage-totals div { padding: 7px; }
  .data-table { min-width: 590px; }
  footer { align-items: flex-start; flex-direction: column; }
}