/* commerce/10-passage-frame/skin.css — P10 Passage Frame persona skin (component SK-B).
   Hand-authored by SK-B-P10-skin-builder. Overrides commerce/base/flow.css (loaded first).
   Tokens/geometry from samples/10-passage-frame/styles.css (deep teal ground, paper, amber signal,
   Georgia display + Inter/system body, thick chapter rules, opaque caption plates).
   Narrative: chapters I–II (catalog, product) sit on the deep ground; chapters III–VII (quote, account,
   payment, confirmation, email) move onto paper. The skin fixes its own scheme under BOTH
   prefers-color-scheme values (no forced flip). Static: no transitions, no animation, no parallax.
   Structural flags: <body data-skin-catalog="frames" data-skin-breakdown="caption"
   data-skin-scheme="dark-to-light" data-skin-density="calm" data-skin-nav="inline">. */

/* ---------- tokens ---------- */
:root, :root[data-flow-page] {
  color-scheme: light;
  --deep: #071719;
  --deep-2: #102a2d;
  --deep-3: #193a3d;
  --paper: #f5eddd;
  --paper-2: #e7d8bb;
  --paper-3: #d3c19f;
  --ink: #102628;
  --ink-soft: #3d5252;      /* 6.9:1 on paper */
  --signal: #f0a45f;
  --signal-light: #ffd3a6;
  --signal-deep: #7a3f00;   /* 6.6:1 on paper — amber for text on light */
  --rule: #6f807b;
  --focus-ring: #ffd085;
  --gutter: clamp(1rem, 4vw, 3rem);

  /* light chapter (default) */
  --fg: var(--ink);
  --bg: var(--paper);
  --muted: var(--ink-soft);
  --line: #5c6d69;          /* 4.6:1 on paper */
  --line-soft: var(--paper-3);
  --surface: var(--paper-2);
  --plate-bg: #fffaf0;
  --plate-fg: var(--ink);
  --accent: var(--deep);
  --accent-fg: var(--paper);
  --link: var(--ink);
  --notice-bg: var(--signal);
  --notice-fg: var(--deep);
  --notice-line: var(--deep);
  --error: #8d1f18;
  --error-bg: #fff1ee;
  --ok: #1e5e2a;
  --focus: var(--deep);
  --zebra: #efe4cf;
  --chapter-rule: var(--deep);
}
/* dark chapters: catalog (I) and product (II) */
:root[data-flow-page="catalog"], :root[data-flow-page="product"] {
  color-scheme: dark;
  --fg: var(--paper);
  --bg: var(--deep);
  --muted: #dccfb5;         /* 12:1 on deep */
  --line: #8fa09a;
  --line-soft: #2e4a4d;
  --surface: var(--deep-2);
  --plate-bg: var(--paper);
  --plate-fg: var(--ink);
  --accent: var(--signal);
  --accent-fg: var(--deep);
  --link: var(--signal-light);
  --error: #ffb4a8;
  --error-bg: #3a1410;
  --ok: #a9dcae;
  --focus: var(--focus-ring);
  --zebra: var(--deep-3);
  --chapter-rule: var(--signal);
}
@media (prefers-color-scheme: dark) {
  /* identical values: the persona's scheme is page-driven, not OS-driven */
  :root { color-scheme: light; --fg: var(--ink); --bg: var(--paper); --muted: var(--ink-soft); --line: #5c6d69;
    --line-soft: var(--paper-3); --surface: var(--paper-2); --plate-bg: #fffaf0; --plate-fg: var(--ink);
    --accent: var(--deep); --accent-fg: var(--paper); --link: var(--ink); --notice-bg: var(--signal);
    --notice-fg: var(--deep); --notice-line: var(--deep); --error: #8d1f18; --error-bg: #fff1ee; --ok: #1e5e2a;
    --focus: var(--deep); --zebra: #efe4cf; --chapter-rule: var(--deep); }
  :root[data-flow-page="catalog"], :root[data-flow-page="product"] {
    color-scheme: dark; --fg: var(--paper); --bg: var(--deep); --muted: #dccfb5; --line: #8fa09a; --line-soft: #2e4a4d;
    --surface: var(--deep-2); --plate-bg: var(--paper); --plate-fg: var(--ink); --accent: var(--signal);
    --accent-fg: var(--deep); --link: var(--signal-light); --error: #ffb4a8; --error-bg: #3a1410; --ok: #a9dcae;
    --focus: var(--focus-ring); --zebra: var(--deep-3); --chapter-rule: var(--signal); }
}

/* ---------- ground + type ---------- */
html { background: var(--bg); }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
}
h1, h2, h3, .product-title, .wordmark {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
h1.page-heading {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  margin: 1.5rem 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 0.5rem solid var(--chapter-rule); /* thick chapter rule */
  max-width: 28ch;
}
h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); margin-top: 2rem; padding-top: 1rem; border-top: 0.25rem solid var(--chapter-rule); }
h2.product-title { font-size: clamp(1.9rem, 4vw, 3rem); border-top: 0; padding-top: 0; }
h3 { font-size: 1.25rem; font-family: inherit; font-weight: 700; letter-spacing: 0; }
a { color: var(--link); text-decoration-thickness: 0.12em; text-underline-offset: 0.22em; }
.marker-illustrative, .pricing-basis, .lead-time-note, .catalog-assumption, .field-hint,
.quote-intro, .email-preview-intro, .catalog-filter-status, .human-next-step { color: var(--muted); }

/* focus: ring visible on both grounds (amber ring + deep halo) */
:focus-visible, [tabindex="-1"]:focus, .skip-link:focus {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px var(--deep);
}
main:focus { outline: none; box-shadow: none; }

/* no motion, ever */
*, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }

/* ---------- chrome ---------- */
.site-header { max-width: none; padding-inline: 0; }
.demo-notice {
  background: var(--notice-bg);
  color: var(--notice-fg);
  border-block: 0.35rem solid var(--deep);
  padding: 0.85rem var(--gutter);
  font-size: 1.0625rem;
  letter-spacing: 0.01em;
}
.site-header .nojs { padding-inline: var(--gutter); }
.site-header .masthead.persona-chrome { padding: 0; margin: 0; }
.site-header .persona-chrome .masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1.5rem;
  min-height: 4rem;
  padding: 0.85rem var(--gutter);
  color: var(--paper);
  background: var(--deep-2);
  border-bottom: 0.5rem solid var(--signal);
}
.wordmark {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  letter-spacing: -0.04em;
  color: var(--paper);
}
.persona-chrome .brand-context {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #f0dfbf;
  line-height: 1.4;
}
.reel-mark { display: none; }
.flow-nav { max-width: none; padding-inline: 0; }
.flow-nav-list {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--line-soft);
  gap: 0 1.5rem;
}
.flow-nav-list a { color: var(--link); font-weight: 600; }
.flow-nav-current { color: var(--muted); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.flow-main, .site-footer { max-width: 72rem; padding-inline: var(--gutter); }
.site-footer { border-top: 0.5rem solid var(--chapter-rule); margin-top: 3rem; }
.footer-disclaimer { color: var(--fg); }

/* ---------- caption plate (shared component) ---------- */
[data-content-id="commerce.posture-note"], .quote-expired-note, .flow-expired,
.flow-precondition, .flow-load-error, .demo-status:not(:empty),
[data-content-id="confirmation.disclaimer"], .quote-locked-state, [data-content-id="quote.locked.state"],
.account-state, [data-content-id="account.state"],
.product-spec-sheet, .provenance, .order-summary, .margin-panel-values,
.form-errors, .email-envelope, .email-body {
  background: var(--plate-bg);
  color: var(--plate-fg);
  border: 0;
  border-left: 0.5rem solid var(--signal);
  border-radius: 0;
  padding: 0.85rem 1rem;
}
[data-content-id="commerce.posture-note"], .quote-expired-note, [data-content-id="confirmation.disclaimer"] { border-left-color: var(--signal); font-weight: 600; }
.quote-locked-state, [data-content-id="quote.locked.state"], .account-state, [data-content-id="account.state"] { border-left-color: var(--ok); }
.form-errors { border-left-color: var(--error); }
.form-errors, .form-errors-heading, .form-errors a, .field-error { color: var(--error); }
:root[data-flow-page="catalog"] .form-errors, :root[data-flow-page="product"] .form-errors { --error: #8d1f18; }
.product-spec-sheet dt, .provenance dt, .order-summary dt { color: #3d5252; }
.product-spec-sheet a, .provenance a, .order-summary a, .margin-panel-values a,
.email-envelope a, .email-body a, .quote-locked-state a, .account-state a { color: var(--ink); }
.demo-status:not(:empty) { border-left-color: var(--signal); color: var(--plate-fg); }

/* ---------- controls ---------- */
button, .cta-primary, .cta-secondary, .filter-button, .clear-demo, a.cta-primary, a.cta-secondary {
  border-radius: 0;
  border: 2px solid var(--accent);
  background: var(--bg);
  color: var(--fg);
  font-weight: 700;
  padding: 0.55rem 1.2rem;
}
button:hover, .cta-secondary:hover, .filter-button:hover, .clear-demo:hover { background: var(--surface); }
.cta-primary, button.cta-primary, a.cta-primary, [type="submit"] {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.cta-primary:hover, [type="submit"]:hover { filter: none; box-shadow: inset 0 -0.35rem 0 var(--deep-3); }
:root[data-flow-page="catalog"] .cta-primary:hover, :root[data-flow-page="product"] [type="submit"]:hover { box-shadow: inset 0 -0.35rem 0 var(--paper); }
.filter-button[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); }
input, select, textarea {
  border-radius: 0;
  border: 2px solid #5c6d69;
  background: var(--plate-bg);
  color: var(--ink);
}
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: #8d1f18; border-width: 3px; }

/* forms as caption plates */
form[data-demo-form] {
  background: var(--plate-bg);
  color: var(--plate-fg);
  border-left: 0.5rem solid var(--signal);
  padding: 1rem 1.25rem 1.25rem;
  margin: 1rem 0 1.5rem;
  max-width: 44rem;
}
form[data-demo-form] .field-hint, form[data-demo-form] .form-required-note, form[data-demo-form] p { color: var(--ink-soft); }
form[data-demo-form] label, form[data-demo-form] legend, form[data-demo-form] [data-content-id="form.all-required"] { color: var(--ink); }
form[data-demo-form] a { color: var(--ink); }
form[data-demo-form] .cta-primary, form[data-demo-form] [type="submit"] { background: var(--deep); color: var(--paper); border-color: var(--deep); }
form[data-demo-form] .cta-secondary, form[data-demo-form] button:not(.cta-primary):not([type="submit"]) { background: var(--plate-bg); color: var(--ink); border-color: var(--deep); }
form[data-demo-form] .field-error { color: #8d1f18; }
form[data-demo-form] .form-errors { border: 0; border-left: 0.5rem solid #8d1f18; background: #fff1ee; }

/* ---------- chapter I: catalog as caption-plated frames ---------- */
.catalog-filter { gap: 0.5rem; margin: 1.25rem 0 0.75rem; }
.catalog-filter-label { letter-spacing: 0.06em; text-transform: uppercase; }
.product-list-heading { margin-top: 2.5rem; }
body[data-skin-catalog="frames"] .product-list {
  display: grid;
  gap: 2rem 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
}
body[data-skin-catalog="frames"] .product-card {
  position: relative;
  border: 0;
  border-radius: 0;
  padding: 0;
  background: transparent;
  gap: 0;
  color: var(--fg);
}
/* the "frame": a letterboxed field on the deep ground, illustrative only (CSS, no images) */
body[data-skin-catalog="frames"] .product-card::before {
  content: "";
  display: block;
  height: 5.5rem;
  background:
    linear-gradient(90deg, var(--deep-3) 0 0.5rem, transparent 0.5rem calc(100% - 0.5rem), var(--deep-3) calc(100% - 0.5rem)),
    linear-gradient(180deg, var(--deep-2), var(--deep-3));
  border-top: 0.35rem solid var(--signal);
  border-bottom: 2px solid var(--line-soft);
}
/* caption plate: opaque paper under the frame carrying name / spec / meta / price */
body[data-skin-catalog="frames"] .product-card > * {
  background: var(--plate-bg);
  color: var(--plate-fg);
  margin: 0;
  padding-inline: 1rem;
}
body[data-skin-catalog="frames"] .product-card > h3 { padding-top: 0.85rem; padding-bottom: 0.25rem; }
body[data-skin-catalog="frames"] .product-card > :last-child { padding-bottom: 0.9rem; border-bottom: 0.5rem solid var(--signal); }
body[data-skin-catalog="frames"] .product-card h3 a { color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: 1.35rem; font-weight: 500; letter-spacing: -0.02em; }
body[data-skin-catalog="frames"] .product-card .product-spec { color: #3d5252; padding-bottom: 0.5rem; }
body[data-skin-catalog="frames"] .product-card .product-meta { grid-template-columns: max-content minmax(0, 1fr); gap: 0.2rem 0.75rem; padding-bottom: 0.5rem; }
body[data-skin-catalog="frames"] .product-card .product-meta dt { color: #3d5252; font-weight: 700; }
body[data-skin-catalog="frames"] .product-card .product-from-price { padding-top: 0.5rem; border-top: 1px solid var(--paper-3); font-size: 1.125rem; }
body[data-skin-catalog="frames"] .product-card .marker-illustrative,
body[data-skin-catalog="frames"] .product-card .product-from-price-missing { color: #3d5252; }
@media (max-width: 767px) {
  body[data-skin-catalog="frames"] .product-list { grid-template-columns: 1fr; gap: 1.5rem; }
  body[data-skin-catalog="frames"] .product-card .product-meta { grid-template-columns: 1fr; }
}

/* ---------- chapter II: product as a full-width scene with caption plate ---------- */
:root[data-flow-page="product"] .flow-main { max-width: none; padding-inline: 0; }
:root[data-flow-page="product"] .flow-main > h1.page-heading,
:root[data-flow-page="product"] .flow-view { max-width: 72rem; margin-inline: auto; padding-inline: var(--gutter); }
:root[data-flow-page="product"] .flow-view { background: linear-gradient(180deg, var(--deep-2), var(--deep) 18rem); padding-top: 1.5rem; padding-bottom: 2rem; }
:root[data-flow-page="product"] .flow-view::before {
  content: "";
  display: block;
  height: 0.5rem;
  background: var(--signal);
  margin-bottom: 1.5rem;
}
.unit-price-line { font-family: Georgia, "Times New Roman", serif; font-size: 1.75rem; font-weight: 500; }
.product-spec-sheet, .provenance { max-width: 44rem; }
.product-spec-sheet dt, .provenance dt { color: #3d5252; }

/* ---------- chapter III: quote breakdown as a caption plate table ---------- */
body[data-skin-breakdown="caption"] .breakdown {
  background: var(--plate-bg);
  color: var(--ink);
  border-left: 0.5rem solid var(--signal);
  border-bottom: 0.5rem solid var(--signal);
}
body[data-skin-breakdown="caption"] .breakdown caption {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  font-weight: 500;
  padding: 0.75rem 0 0.5rem;
  color: var(--fg);
}
body[data-skin-breakdown="caption"] .breakdown th, body[data-skin-breakdown="caption"] .breakdown td {
  border: 0;
  border-bottom: 1px solid var(--paper-3);
  padding: 0.7rem 1rem;
}
body[data-skin-breakdown="caption"] .breakdown thead th { background: var(--paper-2); color: var(--ink); letter-spacing: 0.04em; text-transform: uppercase; font-size: 1rem; }
body[data-skin-breakdown="caption"] .breakdown tbody tr:nth-child(even) td, body[data-skin-breakdown="caption"] .breakdown tbody tr:nth-child(even) th { background: #f7f0e1; }
body[data-skin-breakdown="caption"] .breakdown th[scope="row"] { width: 16rem; color: var(--ink); }
body[data-skin-breakdown="caption"] .breakdown a, body[data-skin-breakdown="caption"] .breakdown .marker-illustrative { color: var(--ink); }
body[data-skin-breakdown="caption"] .breakdown-total th, body[data-skin-breakdown="caption"] .breakdown-total td {
  border-top: 0.25rem solid var(--deep);
  background: var(--paper-2) !important;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.125rem;
}
@media (max-width: 767px) {
  body[data-skin-breakdown="caption"] .breakdown tr { border: 0; border-bottom: 2px solid var(--paper-3); border-radius: 0; margin-bottom: 0.75rem; }
  body[data-skin-breakdown="caption"] .breakdown th[scope="row"] { width: auto; background: var(--paper-2) !important; }
  body[data-skin-breakdown="caption"] .breakdown td:nth-child(2)::before,
  body[data-skin-breakdown="caption"] .breakdown td:nth-child(3)::before { color: #3d5252; }
  body[data-skin-breakdown="caption"] .breakdown-total { border-bottom: 0; }
}
.margin-panel { border: 2px solid var(--line); border-radius: 0; }
.margin-panel[open] > summary { border-bottom-color: var(--line-soft); }
.quote-actions { gap: 1rem; }

/* ---------- chapters V–VII ---------- */
.order-line { font-family: Georgia, "Times New Roman", serif; font-size: 1.35rem; font-weight: 500; }
.email-envelope { border-bottom: 1px solid var(--paper-3); }
.email-body { border-top: 0; font-size: 1rem; }
.email-origin { color: #3d5252; }

/* ---------- density: calm ---------- */
body[data-skin-density="calm"] p, body[data-skin-density="calm"] dl, body[data-skin-density="calm"] ul, body[data-skin-density="calm"] ol { margin-block: 0.85rem; }
body[data-skin-density="calm"] .flow-view > p, body[data-skin-density="calm"] .flow-view > .quote-intro { max-width: 60ch; }

/* ---------- viewport / print / forced colours ---------- */
@media (max-width: 480px) {
  h1.page-heading { font-size: 1.75rem; }
  .flow-nav-list { gap: 0 1rem; }
  .persona-chrome .brand-context { letter-spacing: 0.03em; }
}
@media (min-width: 1440px) {
  .flow-main, .site-footer, .flow-nav-list { max-width: 78rem; }
  :root[data-flow-page="product"] .flow-main > h1.page-heading, :root[data-flow-page="product"] .flow-view { max-width: 78rem; }
}
@media (forced-colors: active) {
  .demo-notice, .form-errors, .product-card, .breakdown, form[data-demo-form] { border: 2px solid CanvasText; }
  body[data-skin-catalog="frames"] .product-card::before { border: 2px solid CanvasText; }
  :focus-visible { outline: 3px solid Highlight; box-shadow: none; }
}