/* Tokfuel site — see Site/DESIGN.ja.md / DESIGN.md */

:root {
  --tf-blue: #0071e3;
  --tf-blue-hover: #0077ed;
  --tf-ink: #1d1d1f;
  --tf-secondary: #6e6e73;
  --tf-hairline: #d2d2d7;
  --tf-page: #ffffff;
  --tf-section: #f5f5f7;
  --tf-nav: #000000;
  --tf-measure: 720px;
  --tf-measure-wide: 980px;
  --tf-pad: 32px;
}

/* Ignite themes use tokfuel-light / tokfuel-dark, not Bootstrap's "dark". */
[data-bs-theme="tokfuel-light"] {
  --tf-blue: #0071e3;
  --tf-blue-hover: #0077ed;
  --tf-ink: #1d1d1f;
  --tf-secondary: #6e6e73;
  --tf-hairline: #d2d2d7;
  --tf-page: #ffffff;
  --tf-section: #f5f5f7;
  color-scheme: light;
}

[data-bs-theme="tokfuel-dark"] {
  --tf-blue: #2997ff;
  --tf-blue-hover: #64b5ff;
  --tf-ink: #f5f5f7;
  --tf-secondary: #a1a1a6;
  --tf-hairline: #424245;
  --tf-page: #010101;
  --tf-section: #1d1d1f;
  /* Ignite skips pure black as Color.default — force body surface here too. */
  --bs-body-bg: #010101 !important;
  --bs-body-color: #f5f5f7 !important;
  --bs-secondary-bg: #1d1d1f !important;
  --bs-border-color: #424245 !important;
  color-scheme: dark;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--bs-body-color, var(--tf-ink));
  background-color: var(--bs-body-bg, var(--tf-page));
  letter-spacing: -0.01em;
  margin: 0;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6,
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  letter-spacing: -0.022em;
  font-weight: 700;
  color: var(--bs-body-color, var(--tf-ink));
}

p, li {
  line-height: 1.47;
}

.text-body-secondary {
  color: var(--tf-secondary) !important;
}

a {
  color: var(--tf-blue);
}

a:hover {
  color: var(--tf-blue-hover);
}

.btn-primary {
  --bs-btn-bg: var(--tf-blue);
  --bs-btn-border-color: var(--tf-blue);
  --bs-btn-hover-bg: var(--tf-blue-hover);
  --bs-btn-hover-border-color: var(--tf-blue-hover);
  --bs-btn-active-bg: var(--tf-blue-hover);
  --bs-btn-active-border-color: var(--tf-blue-hover);
  border-radius: 12px;
  font-weight: 500;
  padding: 0.65rem 1.25rem;
  box-shadow: none;
}

/* Sticky Bootstrap navbar (docs-site default). */
.tf-chrome.navbar,
.navbar.tf-chrome {
  position: sticky;
  top: 0;
  z-index: 1030;
  width: 100%;
  min-height: 52px;
  margin-bottom: 0;
  background-color: var(--tf-nav) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.tf-chrome .navbar-brand,
.tf-chrome .nav-link,
.tf-chrome a {
  color: #f5f5f7 !important;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}

.tf-chrome .nav-link:hover,
.tf-chrome .navbar-brand:hover,
.tf-chrome a:hover {
  color: #ffffff !important;
  opacity: 0.85;
}

.tf-chrome .nav-link.active {
  color: #ffffff !important;
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 0.3em;
}

.tf-chrome .tf-star-icon {
  margin-left: 0.45rem;
  margin-right: 0.15rem;
  opacity: 0.85;
}

/* GitHub: label on top, stars + forks underneath (Material-style source facts). */
.tf-chrome a[href*="github.com/Tokfuel/Tokfuel"] {
  display: inline-flex !important;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  line-height: 1.15;
  white-space: normal !important;
  padding-top: 0.2rem;
  padding-bottom: 0.2rem;
}

.tf-chrome .tf-github-label {
  font-weight: 600;
  font-size: 0.875rem;
}

.tf-chrome .tf-github-facts {
  display: flex;
  flex-direction: row;
  gap: 0.55rem;
  margin-top: 0.1rem;
  font-size: 0.7rem;
  font-weight: 500;
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
}

.tf-chrome .tf-github-fact {
  white-space: nowrap;
}

.tf-chrome .tf-star-count,
.tf-chrome .tf-fork-count {
  font-variant-numeric: tabular-nums;
}

.tf-chrome .tf-nav-icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.5rem;
  line-height: 1;
}

.tf-chrome .tf-nav-icon {
  width: 1.25rem;
  height: 1.25rem;
  display: block;
}

/* Inline search field in the sticky navbar. */
.tf-chrome .tf-nav-search,
.tf-chrome form.d-flex {
  align-items: center;
  margin: 0 0.25rem;
}

.tf-chrome .tf-nav-search .form-control,
.tf-chrome form .form-control {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #f5f5f7;
  min-width: 9.5rem;
  max-width: 14rem;
  height: 2rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.875rem;
  border-radius: 8px;
  box-shadow: none;
}

.tf-chrome .tf-nav-search .form-control::placeholder,
.tf-chrome form .form-control::placeholder {
  color: #a1a1a6;
}

.tf-chrome .tf-nav-search .form-control:focus,
.tf-chrome form .form-control:focus {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.45);
  color: #ffffff;
  box-shadow: none;
}

.tf-chrome .container-fluid {
  padding-left: var(--tf-pad);
  padding-right: var(--tf-pad);
  max-width: none;
}

/* Dropdown results for the nav search field. */
.tf-search-panel {
  position: fixed;
  z-index: 1040;
  margin: 0;
  padding: 0.5rem 0.75rem;
  background: var(--bs-body-bg, var(--tf-page));
  color: var(--bs-body-color, var(--tf-ink));
  border: 1px solid var(--bs-border-color, var(--tf-hairline));
  border-radius: 12px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
  max-height: min(70vh, 28rem);
  overflow: auto;
}

.tf-search-panel[hidden] {
  display: none !important;
}

.tf-search-empty {
  margin: 0.35rem 0;
  font-size: 0.875rem;
  color: var(--tf-secondary);
}

.tf-search-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tf-search-list li + li {
  border-top: 1px solid var(--bs-border-color, var(--tf-hairline));
}

.tf-search-list a {
  display: block;
  padding: 0.65rem 0.15rem;
  text-decoration: none;
  color: inherit;
}

.tf-search-list a:hover {
  color: var(--tf-blue);
}

.tf-search-title {
  display: block;
  font-weight: 600;
}

.tf-search-desc {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.875rem;
  color: var(--tf-secondary);
}

/* Legacy navbar hooks (if any page still emits Bootstrap nav). */
header,
.navbar {
  background-color: var(--tf-nav) !important;
  width: 100%;
}

header {
  margin: 0;
  padding: 0;
}

/* Docs: keep article column left-aligned */
.ig-main-content,
.ig-main-content .vstack,
[data-budoux-root] {
  align-items: flex-start !important;
  text-align: start !important;
}

.ig-main-content > *,
[data-budoux-root] > *,
[data-budoux-root] .vstack > * {
  align-self: flex-start !important;
  text-align: start !important;
  max-width: 100%;
}

pre, code {
  font-family: "SF Mono", SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
}

pre {
  background: var(--bs-secondary-bg, var(--tf-section));
  border: 1px solid var(--bs-border-color, var(--tf-hairline));
  border-radius: 12px;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  width: 100%;
  max-width: var(--tf-measure);
  color: var(--bs-body-color, var(--tf-ink));
}

.tf-hero {
  background: #010101;
  color: #f5f5f7;
}

.tf-hero a,
.tf-hero .btn-primary {
  color: #fff;
}

.tf-section-muted {
  background: var(--bs-secondary-bg, var(--tf-section));
}

.tf-docs-shell {
  max-width: 1100px;
  width: 100%;
  margin-inline: 0; /* left-aligned, not centered */
}

.tf-measure {
  max-width: var(--tf-measure);
}

.tf-measure-wide {
  max-width: var(--tf-measure-wide);
}

/* Sidebar TOC: fixed metrics so tapping a page doesn't shift the list. */
.tf-docs-sidebar {
  position: sticky;
  /* Clear the sticky top chrome (~52px) plus a little air. */
  top: 72px;
  align-self: flex-start;
  flex: 0 0 220px;
  width: 220px;
  max-width: 220px;
}

.tf-docs-sidebar ul,
.tf-docs-sidebar ol,
.tf-docs-nav {
  list-style: none;
  padding-left: 0;
  margin: 0;
  width: 100%;
}

.tf-docs-sidebar li,
.tf-docs-nav .list-group-item {
  border: 0 !important;
  background: transparent !important;
  padding: 0.4rem 0 !important;
  margin: 0;
  line-height: 1.4;
}

.tf-docs-sidebar a,
.tf-docs-nav a {
  display: block;
  width: 100%;
  box-sizing: border-box;
  text-decoration: none;
  /* Same weight for current and peers so glyph metrics (and TOC position) stay put. */
  font-weight: 600;
  color: var(--tf-blue);
}

.tf-docs-sidebar a:hover,
.tf-docs-nav a:hover {
  text-decoration: underline;
}

.tf-docs-sidebar a.is-current,
.tf-docs-nav a.is-current {
  color: var(--tf-ink) !important;
  text-decoration: none;
  cursor: default;
  pointer-events: none;
}

.tf-docs-sidebar p {
  margin: 0;
}

/* Coverage chart on Testing pages. */
.tf-cov {
  width: 100%;
  max-width: var(--tf-measure);
  margin: 0.5rem 0 1.5rem;
}

.tf-cov-summary {
  margin: 0.75rem 0 1rem;
}

.tf-cov-chart {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.tf-cov-row {
  width: 100%;
}

.tf-cov-name {
  min-width: 9.5rem;
}

.tf-cov-meta {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.tf-cov-track {
  width: 100%;
  height: 8px;
  margin-top: 0.3rem;
  background: var(--bs-secondary-bg, var(--tf-section));
  border: 1px solid var(--bs-border-color, var(--tf-hairline));
  border-radius: 999px;
  overflow: hidden;
}

.tf-cov-fill {
  height: 100%;
  background: var(--tf-blue);
  border-radius: 999px;
}

/* ADR accordion toggles — flush, left-aligned, no heavy cards. */
.tf-adr .tf-adr-status {
  margin-top: -0.35rem;
  margin-bottom: 0.5rem;
}

.tf-adr .tf-adr-accordion.accordion,
.tf-adr .accordion {
  width: 100%;
  max-width: var(--tf-measure);
  --bs-accordion-btn-padding-x: 0;
  --bs-accordion-btn-padding-y: 0.75rem;
  --bs-accordion-body-padding-x: 0;
  --bs-accordion-body-padding-y: 0.75rem;
  --bs-accordion-border-color: var(--bs-border-color, var(--tf-hairline));
  --bs-accordion-btn-color: var(--bs-body-color, var(--tf-ink));
  --bs-accordion-active-color: var(--bs-body-color, var(--tf-ink));
  --bs-accordion-btn-bg: transparent;
  --bs-accordion-active-bg: transparent;
  --bs-accordion-bg: transparent;
}

.tf-adr .accordion-button {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  box-shadow: none !important;
}

.tf-adr .accordion-button:not(.collapsed) {
  box-shadow: none !important;
}

.tf-adr .accordion-item {
  background: transparent;
  border-left: 0;
  border-right: 0;
}

.tf-adr .accordion-body {
  text-align: start;
}

.tf-adr .accordion-body .vstack,
.tf-adr .accordion-body {
  align-items: flex-start !important;
}

/* Architecture diagram — inline SVG; light surface for dark theme. */
.tf-arch-diagram {
  display: block;
  width: 100%;
  max-width: var(--tf-measure);
  margin: 0.5rem 0 1.25rem;
  padding: 1rem;
  background: #ffffff;
  border: 1px solid var(--bs-border-color, var(--tf-hairline));
  border-radius: 12px;
  overflow: auto;
}

.tf-arch-diagram svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 720px;
}

[data-bs-theme="tokfuel-dark"] .tf-arch-diagram {
  border-color: #424245;
}

/* Home: compact docs index under How it works. */
.tf-home-docs {
  list-style: none;
  padding-left: 0;
  margin: 0;
  max-width: 420px;
}

.tf-home-docs li,
.tf-home-docs .list-group-item {
  border: 0 !important;
  background: transparent !important;
  padding: 0.35rem 0 !important;
  margin: 0;
}

.tf-home-docs a {
  font-weight: 600;
  text-decoration: none;
}

.tf-home-docs a:hover {
  text-decoration: underline;
}

@media (max-width: 576px) {
  :root {
    --tf-pad: 20px;
  }
}