/*
 * OTOKU Design System v1.0.0 — shared foundation (Pilot).
 * Source of truth: OTOKU_DESIGN_SYSTEM_v1.md (tokens §4–§7, layout §8–§9, components §10–§16).
 * Tokens on :root are inert. Presentation rules apply only to pages that opt in with <body class="ds-v1">.
 * This file changes presentation only: no copy, facts, links, scripts or metadata depend on it.
 */

/* ---------- 1. Primitive tokens (§5.1) ---------- */
:root {
  --green-50: #EFF8F1; --green-100: #DDEFE2; --green-600: #347A52; --green-700: #27623F; --green-800: #1F4F34;
  --cream-50: #FFFCF5; --cream-100: #FFF7E6; --cream-200: #F5E9D0;
  --gold-300: #F3C766; --gold-500: #D99A18; --orange-700: #A94F12;
  --brown-500: #80644F; --brown-700: #5A4030; --brown-900: #30251F;
  --red-50: #FFF1F0; --red-700: #A62B24;
  --white: #FFFFFF; --gray-100: #F3F4F2; --gray-300: #D6D9D3; --gray-600: #60665E;

  /* ---------- 2. Semantic tokens (§5.2) ---------- */
  --color-brand-primary: var(--green-700);
  --color-brand-primary-strong: var(--green-800);
  --color-brand-accent: var(--gold-500);
  --color-text-primary: var(--brown-900);
  --color-text-secondary: var(--brown-500);
  --color-text-link: var(--green-700);
  --color-bg-page: var(--cream-50);
  --color-bg-section: var(--cream-100);
  --color-bg-surface: var(--white);
  --color-border-default: var(--cream-200);
  --color-border-strong: var(--brown-500);
  --color-interactive-primary: var(--green-700);
  --color-interactive-hover: var(--green-800);
  --color-focus-ring: var(--green-800);
  --color-success-text: var(--green-800);
  --color-success-bg: var(--green-50);
  --color-warning-text: #704600;
  --color-warning-bg: #FFF3D1;
  --color-danger-text: var(--red-700);
  --color-danger-bg: var(--red-50);
  --color-trust-text: var(--green-800);
  --color-trust-bg: var(--green-50);
  --color-disabled-text: var(--gray-600);
  --color-disabled-bg: var(--gray-100);

  /* ---------- 3. Typography (§6) ---------- */
  --font-family-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  --type-page-title: 28px; --type-section-title: 22px; --type-card-title: 18px;
  --type-body: 16px; --type-supporting: 14px; --type-data-large: 28px; --type-data: 18px;
  --type-label: 14px; --type-caption: 12px; --type-warning: 15px; --type-cta: 16px;

  /* ---------- 4. Spacing, surface, layout (§7) ---------- */
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-5: 20px; --space-6: 24px;
  --space-8: 32px; --space-10: 40px; --space-12: 48px; --space-16: 64px;
  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 20px; --radius-pill: 999px;
  --border-default: 1px solid var(--color-border-default);
  --border-strong: 2px solid var(--color-border-strong);
  --shadow-sm: 0 1px 2px rgba(48,37,31,.08);
  --shadow-md: 0 6px 18px rgba(48,37,31,.10);
  --container-page-max: 1200px; --container-content-max: 760px; --container-compare-max: 1120px;
  --container-gutter: 16px;
  --z-base: 0; --z-raised: 10; --z-sticky: 100; --z-dropdown: 300; --z-overlay: 500; --z-modal: 700; --z-toast: 900;
  --motion-fast: 120ms; --motion-base: 180ms; --motion-slow: 280ms; --motion-ease: cubic-bezier(.2,0,0,1);

  /* ---------- 5. Component tokens ---------- */
  --button-primary-bg: var(--color-interactive-primary);
  --button-primary-bg-hover: var(--color-interactive-hover);
  --button-primary-text: var(--white);
  --card-bg: var(--color-bg-surface);
  --card-border: var(--border-default);
  --card-radius: var(--radius-md);
  --card-padding: var(--space-6);
  --tap-min: 44px;
  --character-size: 56px;
}
@media (min-width: 480px) { :root { --container-gutter: 24px; } }
@media (min-width: 768px) {
  :root {
    --type-page-title: 36px; --type-section-title: 28px; --type-card-title: 20px;
    --type-data-large: 32px; --type-data: 20px; --character-size: 72px;
  }
}
@media (min-width: 1024px) { :root { --container-gutter: 32px; } }

/* ---------- 6. Legacy variable bridge: existing page CSS inherits semantic tokens ---------- */
body.ds-v1 {
  --ink: var(--color-text-primary);
  /* Legacy --muted is used on tinted cards; brown-700 keeps AA there (brown-500 is AA only on cream/white). */
  --muted: var(--brown-700);
  --brand: var(--color-brand-primary);
  --brand-dark: var(--color-brand-primary-strong);
  --green: var(--color-brand-primary);
  --mint: var(--color-success-bg);
  --line: var(--color-border-default);
  --shadow: var(--shadow-sm);
  --v53-primary: var(--color-interactive-primary);
  --v53-focus: var(--color-focus-ring);
  --v53-radius: var(--radius-sm);

  margin: 0;
  background: var(--color-bg-page);
  color: var(--color-text-primary);
  font-family: var(--font-family-sans);
  font-size: var(--type-body);
  line-height: 1.75;
  word-break: normal;
  overflow-wrap: anywhere;
  line-break: strict;
}
body.ds-v1 :is(button, input, select, textarea) { font-family: inherit; }

/* ---------- 7. Focus and touch (§8.3) ---------- */
body.ds-v1 :is(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px var(--white);
}

/* ---------- 8. Typography roles (§6.2–6.3) ---------- */
body.ds-v1 main h1 {
  font-size: var(--type-page-title);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--color-text-primary);
}
body.ds-v1 main h2 {
  font-size: var(--type-section-title);
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--color-text-primary);
}
body.ds-v1 main h3 {
  font-size: var(--type-card-title);
  line-height: 1.45;
  font-weight: 700;
  color: var(--color-text-primary);
}
body.ds-v1 main :is(p, li, dd, summary) { font-size: var(--type-body); }
body.ds-v1 main .hero p:not(.eyebrow, .small) { font-size: var(--type-body); line-height: 1.75; color: var(--color-text-primary); }
body.ds-v1 main :is(#categories, #advanced, #other) h2 { font-size: var(--type-section-title); }
body.ds-v1 :is(.eyebrow, .section-kicker) {
  font-size: var(--type-label);
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--color-brand-primary);
}
body.ds-v1 main :is(small, .small, .heading-note) {
  font-size: var(--type-supporting);
  line-height: 1.65;
  color: var(--color-text-secondary);
}
body.ds-v1 main p a:not([class]),
body.ds-v1 main .data-source a,
body.ds-v1 main .source a { color: var(--color-text-link); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 9. SiteHeader / navigation (§11.1) ---------- */
body.ds-v1 > header,
body.ds-v1 .site-header {
  background: var(--color-bg-surface);
  border-bottom: var(--border-default);
  box-shadow: none;
}
body.ds-v1 .site-header { z-index: var(--z-sticky); backdrop-filter: none; }
body.ds-v1 > header :is(.brand, .site-home-link) {
  color: var(--color-brand-primary);
  font-family: var(--font-family-sans);
  font-size: 18px;
  font-weight: 700;
}
body.ds-v1 > header nav a,
body.ds-v1 .v53-site-nav a,
body.ds-v1 .site-header :is(.section-nav a, .header-quiz) {
  min-height: var(--tap-min);
  color: var(--color-brand-primary);
  font-family: var(--font-family-sans);
  font-size: var(--type-label);
  font-weight: 600;
}
body.ds-v1 .breadcrumb { align-items: center; color: var(--color-text-secondary); font-size: var(--type-supporting); }
body.ds-v1 .breadcrumb a { color: var(--color-text-link); display: inline-flex; align-items: center; min-height: var(--tap-min); }

/* ---------- 10. StandardCard / surfaces (§7.2, §11.2) ---------- */
body.ds-v1 :is(.block, .card, .fund-card, .index-basics article, .related-grid a, .empty, .index-answer) {
  background: var(--card-bg);
  border: var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
}
body.ds-v1 .block { padding: var(--card-padding); margin-bottom: var(--space-6); }
body.ds-v1 .fund-card, body.ds-v1 .index-basics article { padding: var(--space-6); }
/* Equal visual weight across comparison candidates (§16: no unexplained recommendation emphasis). */
body.ds-v1 .featured-fund { border: var(--card-border); }
body.ds-v1 .fund-card dl div { background: var(--color-bg-section); border-radius: var(--radius-sm); }
body.ds-v1 .fund-card dt { font-size: var(--type-caption); color: var(--color-text-secondary); }
body.ds-v1 .fund-card dd { font-size: var(--type-body); font-weight: 700; font-variant-numeric: tabular-nums; }
body.ds-v1 .fund-card small { border-top: var(--border-default); color: var(--color-text-primary); }
body.ds-v1 .index-basics b { background: var(--green-100); color: var(--color-brand-primary-strong); }

/* Tiles (link rows) */
body.ds-v1 .tile {
  background: var(--color-bg-surface);
  border: var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  min-height: var(--tap-min);
}
body.ds-v1 .tile strong { color: var(--color-brand-primary-strong); font-weight: 700; }
body.ds-v1 .tile small { color: var(--color-text-secondary); font-size: var(--type-supporting); }
body.ds-v1 .tile:hover { background: var(--color-success-bg); }
body.ds-v1 .intent-list .tile { background: var(--color-bg-surface); }
body.ds-v1 .personal { background: var(--color-success-bg); }

/* ---------- 11. Buttons / CTA (§6.2 CTA, §13) ---------- */
body.ds-v1 :is(.button, .primary, .primary-button, .p2-next .p2-main, button[type=submit]) {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px;
  padding: var(--space-3) var(--space-5);
  background: var(--button-primary-bg);
  color: var(--button-primary-text);
  border: 1px solid var(--button-primary-bg);
  border-radius: var(--radius-sm);
  font-size: var(--type-cta);
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  box-shadow: none;
  transition: background-color var(--motion-fast) var(--motion-ease);
}
body.ds-v1 :is(.button, .primary, .primary-button, .p2-next .p2-main, button[type=submit]):hover {
  background: var(--button-primary-bg-hover);
  border-color: var(--button-primary-bg-hover);
  text-decoration: none;
}
body.ds-v1 button[type=submit] { flex: none; white-space: nowrap; padding-inline: var(--space-4); }
body.ds-v1 :is(.secondary, .p2-next .p2-sub) {
  background: var(--color-bg-surface);
  color: var(--color-brand-primary);
  border: 1px solid var(--color-brand-primary);
  border-radius: var(--radius-sm);
  font-weight: 700;
}
body.ds-v1 .hero-actions > a:not(.primary-button),
body.ds-v1 :is(.more, .p2-inline) {
  display: inline-flex; align-items: center; min-height: var(--tap-min);
  color: var(--color-text-link);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 12. NextAction (§13) ---------- */
body.ds-v1 .p2-next {
  max-width: var(--container-compare-max);
  background: var(--color-success-bg);
  border: 1px solid var(--green-100);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  font-family: var(--font-family-sans);
}
body.ds-v1 .p2-next h2 { font-size: var(--type-card-title); color: var(--color-text-primary); }

/* ---------- 13. Trust / Source / checked date (§11.3) ---------- */
body.ds-v1 :is(.data-source, .source-box, .source) {
  background: var(--color-trust-bg);
  color: var(--color-trust-text);
  border: 1px solid var(--green-100);
  border-left: 4px solid var(--green-600);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--type-supporting);
  line-height: 1.65;
}
body.ds-v1 .data-source { margin-top: var(--space-4); max-width: var(--container-content-max); }
body.ds-v1 .source .small, body.ds-v1 .scope { font-size: var(--type-caption); color: var(--color-text-secondary); }
body.ds-v1 .official { color: var(--color-text-link); text-decoration: underline; text-underline-offset: 3px; }
/* TrustPanel: service evidence block carries official source + verified date. */
body.ds-v1 .service-evidence {
  background: var(--color-trust-bg); border: 1px solid var(--green-100); border-left: 4px solid var(--green-600);
  border-radius: var(--radius-md); color: var(--color-text-primary);
}
body.ds-v1 .service-evidence h2 { color: var(--color-trust-text); }
body.ds-v1 .service-evidence li + li { border-top-color: var(--green-100); }

/* ---------- 14. Notice / Warning / Beginner (§11.4) ---------- */
body.ds-v1 .sim-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--gold-300);
  border-radius: var(--radius-md);
  font-size: var(--type-warning);
  font-weight: 400;
  line-height: 1.65;
}
body.ds-v1 .sim-warning { padding: var(--space-3) var(--space-4); margin-top: var(--space-6); }
/* .condition is a reward-type label (e.g. 抽選), not a warning: Label role. */
body.ds-v1 .condition { font-size: var(--type-label); font-weight: 600; color: var(--color-warning-text); }
body.ds-v1 :is(.neutral-note, .explanation) {
  background: var(--color-bg-section);
  border: var(--border-default);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  padding: var(--space-4) var(--space-5);
}
body.ds-v1 :is(.neutral-note, .explanation) p { color: var(--color-text-primary); font-size: var(--type-body); }
body.ds-v1 .explanation strong { font-size: var(--type-body); }
/* ImportantNote: conditions that change the decision; content-first, not closable. */
body.ds-v1 .service-notes {
  background: var(--color-bg-section); border: var(--border-default); border-left: 4px solid var(--color-brand-accent);
  border-radius: var(--radius-md); color: var(--color-text-primary);
}
body.ds-v1 .service-notes p { color: var(--color-text-primary); }

/* ---------- 15. Comparison UI (§9) ---------- */
body.ds-v1 .versus { border: var(--border-default); border-radius: var(--radius-md); background: var(--color-bg-surface); }
body.ds-v1 .versus > div > * { border-color: var(--color-border-default); color: var(--color-text-primary); }
body.ds-v1 .versus-head { background: var(--color-success-bg); color: var(--color-brand-primary-strong); }
/* Mobile: 2 candidates -> keep both columns visible without page/local scroll; item label becomes a row header. */
@media (max-width: 767px) {
  body.ds-v1 .versus { overflow: visible; }
  body.ds-v1 .versus > div { grid-template-columns: 1fr 1fr; min-width: 0; }
  body.ds-v1 .versus > div > span:first-child {
    grid-column: 1 / -1;
    background: var(--color-bg-section);
    border-right: 0;
    font-size: var(--type-label);
  }
  body.ds-v1 .versus > div > * { font-size: var(--type-supporting); padding: var(--space-2) var(--space-3); }
  body.ds-v1 .versus-head > span:first-child { display: none; }
}

/* ---------- 15b. Rollout: legacy dark bands -> light DS surfaces (Pilot pattern) ---------- */
/* DS v1 defines no dark surfaces: full-width bands use section/success backgrounds with primary text. */
body.ds-v1 :is(.check-band, .monthly-section, .point-diagnosis, .sim-band, .annual-results, .calendar-band,
  .check-overview, .next-panel, .dashboard-path, .dashboard-next, .portfolio-summary-band) {
  background: var(--color-bg-section);
  color: var(--color-text-primary);
}
body.ds-v1 :is(.diagnosis-band, .sim-section, .check-band, .monthly-section, .point-diagnosis, .sim-band, .annual-results,
  .calendar-band, .check-overview, .next-panel, .dashboard-path, .dashboard-next, .portfolio-summary-band)
  :where(h2, h3, h4, p, small, span, strong, b, li, label, legend, dt, dd, output, time, em) { color: inherit; }
body.ds-v1 :is(.diagnosis-band, .sim-section, .check-band, .monthly-section, .point-diagnosis, .sim-band, .annual-results,
  .calendar-band, .check-overview, .next-panel, .dashboard-path, .dashboard-next, .portfolio-summary-band)
  :is(.section-kicker, .eyebrow) { color: var(--color-brand-primary); }
body.ds-v1 :is(.diagnosis-band, .sim-section, .check-band, .monthly-section, .point-diagnosis, .sim-band, .annual-results,
  .calendar-band, .check-overview, .next-panel, .dashboard-path, .dashboard-next, .portfolio-summary-band)
  :where(a:not([class])) { color: var(--color-text-link); }

/* Emphasis cards (totals, featured links, table headers): inverse brand surface, white text (10:1). */
body.ds-v1 :is(.dashboard-total, .portfolio-totals, .location-card, .annual-total-card, .repeat-grid a.featured,
  .repeat-grid .dashboard-link, .comparison-table thead th) {
  background: var(--color-brand-primary-strong);
  color: var(--white);
}
body.ds-v1 :is(.dashboard-total, .portfolio-totals, .location-card, .annual-total-card, .repeat-grid a.featured,
  .repeat-grid .dashboard-link, .comparison-table thead th)
  :where(h2, h3, h4, p, small, span, strong, b, li, dt, dd, output, time, a) { color: inherit; }
body.ds-v1 main :is(.dashboard-total, .portfolio-totals, .location-card, .annual-total-card, .repeat-grid a.featured,
  .repeat-grid .dashboard-link) :is(small, .small, p, span) { color: inherit; }

/* Choice buttons that sat on dark bands: DS secondary button; selected = primary. */
body.ds-v1 :is(.quiz-options button, .point-choices button, .preset-buttons button, .filter-chip, .check-band .check-item) {
  min-height: var(--tap-min);
  background: var(--color-bg-surface);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
}
body.ds-v1 :is(.quiz-options button, .point-choices button, .preset-buttons button, .filter-chip, .check-band .check-item) :where(small, span, strong) { color: inherit; }
body.ds-v1 :is(.quiz-options button, .point-choices button, .preset-buttons button):is(:hover, :focus-visible) { background: var(--green-100); color: var(--color-text-primary); }
body.ds-v1 :is(.point-choices button[aria-pressed=true], .filter-chip.active, .check-band .check-item[aria-pressed=true]) {
  background: var(--color-interactive-primary); color: var(--white); border-color: var(--color-interactive-primary);
}
body.ds-v1 .check-band .check-item[aria-pressed=true] .check-box { background: var(--white); color: var(--color-interactive-primary); border-color: var(--white); }
body.ds-v1 .quiz-result { background: var(--color-bg-surface); color: var(--color-text-primary); border: var(--border-default); border-radius: var(--radius-md); }
body.ds-v1 .quiz-result :is(strong, a) { color: var(--color-brand-primary-strong); }

/* Gold action buttons -> DS secondary (portfolio sync actions) / primary (diagnose submit). */
body.ds-v1 :is(.portfolio-actions a, .portfolio-actions button) {
  background: var(--color-bg-surface); color: var(--color-brand-primary); border: 1px solid var(--color-brand-primary);
  border-radius: var(--radius-sm); min-height: var(--tap-min); font-weight: 700;
}
body.ds-v1 :is(.dashboard-path a, .dashboard-next a) {
  display: inline-flex; align-items: center; min-height: 48px;
  background: var(--button-primary-bg); color: var(--button-primary-text); border-radius: var(--radius-sm); text-decoration: none;
}
body.ds-v1 .diagnose-button { background: var(--button-primary-bg); color: var(--button-primary-text); border-radius: var(--radius-sm); min-height: 48px; }
/* Breadcrumb: keep each crumb word intact, wrap between crumbs. */
body.ds-v1 .breadcrumb { flex-wrap: wrap; row-gap: 0; }
body.ds-v1 .breadcrumb a { white-space: nowrap; }
/* Page-specific CTA colours -> DS primary (§5.3: no gold/red commercial CTA). */
body.ds-v1 :is(.card-button, .point-button) {
  background: var(--button-primary-bg); color: var(--button-primary-text); border-color: var(--button-primary-bg);
  border-radius: var(--radius-sm); min-height: 48px;
}
/* Supporting text on tinted/gradient hero visuals: brown-700 keeps AA (brown-500 is AA only on cream/white). */
body.ds-v1 main :is([class*="hero"], [class*="visual"]) :is(small, .small) { color: var(--brown-700); }
/* Light tinted section bands -> DS section background. */
body.ds-v1 :is(.soft-section, .ranking-section, .related-section, .finder-section, .card-compare-section, .compare-band,
  .improve-band, .roadmap-band) { background: var(--color-bg-section); }
/* Off-palette blue accents (dividend family) -> brand tokens. */
body.ds-v1 :is(.coming > a span, .dividend-hero h1 span, .income-card > span, .income-card b, .quick-nav span, .budget-tag,
  .budget-grid a, .beginner-steps li > span, .monthly-cards span, .basic-grid article > span, .blue) { color: var(--color-brand-primary); }
body.ds-v1 :is(.blue, .budget-tag, .basic-grid article > span) { background: var(--color-success-bg); }
body.ds-v1 .monthly-grid > div:first-child p:last-child { color: var(--color-text-primary); }
/* Legacy light-on-dark text rules with higher specificity than the band reset. */
body.ds-v1 :is(.calendar-band .section-heading > p:last-child, .check-overview small, .check-overview p, .next-panel > p,
  .dashboard-path p, .dashboard-next p, .sim-layout > div > p, .sim-layout > div > small, .monthly-section .data-source,
  .repeat-grid .dashboard-link span, .repeat-grid .dashboard-link small) { color: inherit; }
/* Emphasis text accents -> AA tokens. */
body.ds-v1 :is(.card-hero h1 span, .card-invest-hero h1 span) { color: var(--color-brand-primary); }
body.ds-v1 :is(.card-visual > span, .card-rules span, .credit-head > b, .stock-row dl div:first-child dd, .monthly-cards b,
  .detail-yield strong, .point-basics b) { color: var(--orange-700); }

/* ---------- 16. Simulator & diagnosis surfaces (§14): light surfaces, AA contrast ---------- */
body.ds-v1 .sim-section { background: var(--color-bg-section); color: var(--color-text-primary); }
body.ds-v1 .sim-section :is(h2, p, legend, label),
body.ds-v1 .sim-layout > div:first-child > p:last-of-type { color: var(--color-text-primary); }
body.ds-v1 .sim-section .section-kicker { color: var(--color-brand-primary); }
body.ds-v1 .sim-form label span { color: var(--color-brand-primary-strong); font-variant-numeric: tabular-nums; }
body.ds-v1 .sim-form input[type=range] { accent-color: var(--color-interactive-primary); min-height: var(--tap-min); }
body.ds-v1 .sim-form input[type=number],
body.ds-v1 #rate {
  min-height: var(--tap-min); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3); font-size: var(--type-body); color: var(--color-text-primary); background: var(--white);
}
body.ds-v1 .return-buttons button {
  min-height: var(--tap-min); min-width: var(--tap-min);
  background: var(--color-bg-surface); color: var(--color-brand-primary);
  border: 1px solid var(--color-brand-primary); border-radius: var(--radius-sm); font-weight: 700;
}
body.ds-v1 .return-buttons button.active { background: var(--color-interactive-primary); color: var(--white); }
body.ds-v1 .sim-result {
  background: var(--color-bg-surface); color: var(--color-text-primary);
  border: var(--border-default); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
}
body.ds-v1 .sim-result > small { font-size: var(--type-label); font-weight: 600; color: var(--color-text-primary); }
body.ds-v1 .sim-result > strong { font-size: var(--type-data-large); color: var(--color-brand-primary-strong); font-variant-numeric: tabular-nums; }
body.ds-v1 .sim-result span { background: var(--color-bg-section); color: var(--color-text-secondary); font-size: var(--type-supporting); border-radius: var(--radius-sm); }
body.ds-v1 .sim-result b { font-size: var(--type-data); color: var(--color-text-primary); font-variant-numeric: tabular-nums; }
body.ds-v1 .sim-result p { font-size: var(--type-supporting); color: var(--color-text-primary); }

body.ds-v1 .diagnosis-band { background: var(--color-success-bg); color: var(--color-text-primary); }
body.ds-v1 .diagnosis-band :is(h2, h3, p, .section-heading p:last-child) { color: var(--color-text-primary); }
body.ds-v1 .diagnosis-band .section-heading .section-kicker { color: var(--color-brand-primary); }
body.ds-v1 .diagnosis-progress > span { color: var(--color-text-primary); }
body.ds-v1 .diagnosis-progress i { background: var(--green-100); }
body.ds-v1 .diagnosis-progress b { background: var(--color-interactive-primary); }
body.ds-v1 .index-question button {
  min-height: var(--tap-min);
  background: var(--color-bg-surface); color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
}
body.ds-v1 .index-question button:hover { background: var(--green-100); color: var(--color-text-primary); }
body.ds-v1 .index-question button:focus-visible { background: var(--green-100); color: var(--color-text-primary); outline: 3px solid var(--color-focus-ring); }
body.ds-v1 .index-answer button { min-height: var(--tap-min); background: var(--green-100); color: var(--color-brand-primary-strong); }

/* ---------- 16b. Form fields (§14.1): visible border, 44px, token accent ---------- */
body.ds-v1 main :is(input[type=number], input[type=text], input[type=search], input[type=email], input[type=tel], input[type=date], select, textarea) {
  min-height: var(--tap-min);
  background: var(--white);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: var(--type-body);
}
body.ds-v1 main input[type=range] { accent-color: var(--color-interactive-primary); }
body.ds-v1 main :is(input[type=checkbox], input[type=radio]) { accent-color: var(--color-interactive-primary); }

/* ---------- 17. Page sections & quick nav ---------- */
body.ds-v1 .fund-section { background: var(--color-bg-section); }
body.ds-v1 .index-quick a {
  display: inline-flex; align-items: center; justify-content: center; min-height: var(--tap-min);
  background: var(--color-bg-surface); border: var(--border-default); border-radius: var(--radius-sm);
  color: var(--color-brand-primary); font-size: var(--type-label); font-weight: 600;
}
body.ds-v1 .faq-list summary { min-height: var(--tap-min); display: list-item; font-size: var(--type-body); font-weight: 700; }
body.ds-v1 .faq-list p { color: var(--color-text-primary); }
body.ds-v1 .related-grid a { color: var(--color-text-primary); }
body.ds-v1 .related-grid strong { color: var(--color-brand-primary-strong); }
body.ds-v1 .related-grid small { font-size: var(--type-supporting); color: var(--color-text-secondary); }
body.ds-v1 .grow-card { background: var(--color-success-bg); border-radius: var(--radius-lg); }

/* ---------- 18. Free poikatsu list / detail components ---------- */
body.ds-v1 .service-card {
  background: var(--color-bg-surface); border: var(--border-default); border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm); color: var(--color-text-primary);
}
body.ds-v1 .service-card:hover { background: var(--color-success-bg); }
body.ds-v1 .service-title { font-size: var(--type-card-title); font-weight: 700; }
body.ds-v1 .method-tags > span, body.ds-v1 .category-label {
  background: var(--color-bg-section); color: var(--color-text-primary); border-radius: var(--radius-sm);
  font-size: var(--type-caption); padding: 2px var(--space-2);
}
body.ds-v1 .service-arrow { color: var(--color-brand-primary); }
body.ds-v1 .chips button, body.ds-v1 #reset, body.ds-v1 #empty-reset {
  min-height: var(--tap-min); background: var(--color-bg-surface); color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
}
body.ds-v1 .chips button[aria-pressed=true] { background: var(--color-interactive-primary); color: var(--white); border-color: var(--color-interactive-primary); }
body.ds-v1 .service-search input {
  min-height: var(--tap-min); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); color: var(--color-text-primary);
}
body.ds-v1 .reward { background: var(--color-bg-section); border-radius: var(--radius-sm); }
body.ds-v1 .rating { color: var(--color-brand-primary-strong); }
body.ds-v1 .reason { color: var(--color-text-secondary); font-size: var(--type-supporting); }
body.ds-v1 .detail-count { color: var(--color-brand-primary-strong); }
body.ds-v1 .list-back { color: var(--color-text-link); }
body.ds-v1 :is(#list-view h1, #service-title) { font-size: var(--type-page-title); line-height: 1.3; }
body.ds-v1 #list-view .hero .official-character { margin-left: 0; margin-right: 0; }
body.ds-v1 .v53-site-nav { max-width: 1120px; margin-inline: auto; padding-inline: var(--container-gutter); }

/* ---------- 19. Character presentation (§12) ---------- */
body.ds-v1 img.official-character,
body.ds-v1 #list-view .hero .official-character {
  width: var(--character-size);
  height: var(--character-size);
  object-fit: contain;
}
body.ds-v1 img.character-growing { width: var(--character-size); height: auto; }

/* ---------- 20. Footer ---------- */
/* One light footer surface on every page (legacy styles.css footer was dark). */
body.ds-v1 footer {
  background: var(--color-bg-section);
  border-top: var(--border-default);
  color: var(--color-text-primary);
}
body.ds-v1 footer :is(p, small, .site-trust-note span) { color: var(--color-text-secondary); }
body.ds-v1 footer .site-trust-note span { font-size: var(--type-supporting); }
body.ds-v1 footer .site-trust-note { border-top-color: var(--color-border-default); }
body.ds-v1 footer .site-trust-note strong { color: var(--color-text-primary); }
body.ds-v1 footer .roadmap-return a { color: var(--color-text-link); }
body.ds-v1 footer .footer-brand { color: var(--color-brand-primary); font-weight: 700; }
body.ds-v1 footer .footer-policy-nav a {
  background: var(--color-bg-surface); border: var(--border-default); border-radius: var(--radius-sm);
  color: var(--color-text-link); font-family: var(--font-family-sans); font-size: var(--type-label);
}

/* ---------- 21. Responsive composition (§8.2): 320–479px is one column ---------- */
@media (max-width: 479px) {
  body.ds-v1 .grid { grid-template-columns: minmax(0, 1fr); }
  body.ds-v1 .block { padding: var(--space-4); margin-bottom: var(--space-4); }
  body.ds-v1 .fund-card, body.ds-v1 .index-basics article { padding: var(--space-4); }
  body.ds-v1 .hero-actions { flex-direction: column; align-items: stretch; }
  body.ds-v1 .hero-actions > a { justify-content: center; }
}

/* ---------- 23. Design Final (Phase 3B-4) ---------- */
/* Diagnosis choices (brokerage / net-banks): selected state is filled + 2px border + radio dot, not colour-only. */
body.ds-v1 .broker-form fieldset {
  background: var(--color-bg-surface); border: 1px solid var(--green-100); border-radius: var(--radius-md);
}
body.ds-v1 .broker-form legend { color: var(--color-text-primary); font-weight: 700; }
body.ds-v1 .broker-diagnosis .broker-form label {
  display: flex; align-items: center; gap: var(--space-2);
  min-height: var(--tap-min); padding: var(--space-2) var(--space-3);
  background: var(--color-bg-surface); color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  font-size: var(--type-body); line-height: 1.4;
}
body.ds-v1 .broker-diagnosis .broker-form label:hover { background: var(--color-success-bg); }
body.ds-v1 .broker-diagnosis .broker-form label:has(input:checked) {
  background: var(--green-100); color: var(--color-text-primary);
  border-color: var(--color-brand-primary-strong); box-shadow: inset 0 0 0 1px var(--color-brand-primary-strong); font-weight: 700;
}
body.ds-v1 .broker-diagnosis .broker-form label:has(input:focus-visible) { outline: 3px solid var(--color-focus-ring); outline-offset: 2px; }
body.ds-v1 .broker-diagnosis .broker-form input[type=radio] { accent-color: var(--color-interactive-primary); width: 20px; height: 20px; margin: 0; flex: none; }

/* Mobile: keep the page's existing primary CTA (.header-quiz) visible on the brand row instead of display:none. */
@media (max-width: 760px) {
  body.ds-v1 .site-header.has-section-nav .brand { width: auto; flex: 1 1 auto; min-width: 0; }
  body.ds-v1 .site-header.has-section-nav .header-quiz {
    display: inline-flex; align-items: center; order: 1; flex: none; margin-left: auto;
    min-height: var(--tap-min); padding: 0 var(--space-3); white-space: nowrap;
    background: var(--color-bg-surface); color: var(--color-brand-primary); border: 1px solid var(--color-brand-primary);
    border-radius: var(--radius-sm); font-size: var(--type-label); font-weight: 700;
  }
  body.ds-v1 .site-header.has-section-nav .section-nav { order: 2; }
}

/* Top H1: no 1-2 character orphan lines at 320-360px (each designed line fits the content width). */
@media (max-width: 479px) {
  body.ds-v1 #top.hero h1 { font-size: clamp(22px, calc((100vw - 32px) / 12.2), var(--type-page-title)); line-height: 1.35; }
}

/* Top: one-line trust statement under the hero (existing policy sentence; TrustPanel tone, low emphasis). */
body.ds-v1 .ds-trust-line {
  margin: 0 0 var(--space-4);
  padding: var(--space-2) var(--space-3);
  background: var(--color-trust-bg);
  border-left: 3px solid var(--green-600);
  border-radius: var(--radius-sm);
  color: var(--color-trust-text);
  font-size: var(--type-supporting);
  line-height: 1.65;
}
body.ds-v1 .ds-trust-line a { margin-left: var(--space-2); color: var(--color-text-link); text-decoration: underline; text-underline-offset: 3px; white-space: nowrap; }

/* ---------- 24. Quality P0 closeout (Phase 4A) ---------- */
/* A11Y-002: /checklist experience select label (visible Label role, stacked above the control). */
body.ds-v1 .experience-field { display: grid; gap: var(--space-1); min-width: 0; }
body.ds-v1 .experience-field label { font-size: var(--type-label); font-weight: 600; line-height: 1.4; color: var(--color-text-primary); }
body.ds-v1 .experience-field select { width: 100%; }
/* A11Y-003 / MOB-001 reflow: /net-banks hero line used nowrap + a size above the H1 token; let it follow the H1 and wrap. */
body.ds-v1 .bank-hero-line { font-size: inherit; white-space: normal; }

/* ---------- 21b. Brand logo (post-launch maintenance v1) ----------
   Official chick asset replaces the 🐤 emoji in every header; 26px, decorative (alt=""), no header height change. */
body.ds-v1 .brand-logo-wrap { display: inline-flex; align-items: center; flex: 0 0 auto; line-height: 0; font-size: 0; }
body.ds-v1 .brand-logo { display: block; width: 26px; height: 26px; object-fit: contain; }
body.ds-v1 .header .brand .brand-logo-wrap { margin-right: 6px; }

/* ---------- 21c. Header logo (PILOT C, local only) ----------
   Header brand = header-only logo derived from the official transparent logo (④, outer margin trimmed, 518x160 WebP). Mobile 38px / >=768px 44px, width:auto. */
body.ds-v1 .brand-full { display: inline-flex; align-items: center; flex: 0 0 auto; min-height: 44px; gap: 0; padding: 0; line-height: 0; vertical-align: top; }
body.ds-v1 .brand-full-logo { display: block; height: 38px; width: auto; max-width: none; aspect-ratio: 518 / 160; }
@media (min-width: 768px) { body.ds-v1 .brand-full-logo { height: 44px; } }

/* ---------- 22. Motion (§7.6) ---------- */
@media (prefers-reduced-motion: reduce) {
  body.ds-v1 *, body.ds-v1 *::before, body.ds-v1 *::after {
    transition-duration: 1ms !important; animation-duration: 1ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important;
  }
}