/* ============================================================
   IDEATECH - Brand Facts Page Stylesheet
   Wikipedia-inspired encyclopedic layout
   グランドデザインシステム準拠
   ============================================================ */

/* ----------------------------------------
   1. Page Header
   ---------------------------------------- */
.bf-page-header {
  background: var(--shiro2);
  border-bottom: 0.5px solid var(--shiro3);
  padding-top: var(--header-h);
}

.bf-page-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 40px 36px;
}

/* Breadcrumb */
.bf-breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--kuro4);
  flex-wrap: wrap;
}

.bf-breadcrumb li + li::before {
  content: '›';
  margin-right: 8px;
  color: var(--kuro4);
}

.bf-breadcrumb a {
  color: var(--daidai);
}
.bf-breadcrumb a:hover { text-decoration: underline; opacity: 1; }

.bf-breadcrumb [aria-current="page"] { color: var(--kuro4); }

/* Meta row */
.bf-page-header__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 16px 0 12px;
  flex-wrap: wrap;
}

.bf-page-header__type {
  display: inline-block;
  padding: 3px 12px;
  background: var(--kuro1);
  color: var(--shiro1);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 8px;
}

.bf-page-header__notice {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--kuro4);
}

/* Title */
.bf-page-header__title {
  font-family: var(--font-mincho);
  font-size: 48px;
  font-weight: 700;
  color: var(--kuro1);
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin-bottom: 16px;
}

/* Lead */
.bf-page-header__lead {
  font-size: 16px;
  color: var(--kuro1);
  line-height: 1.8;
  max-width: 720px;
  margin-bottom: 16px;
}

/* JSON link */
.bf-page-header__json-link {
  font-size: 13px;
  color: var(--kuro4);
}

.bf-page-header__json-link a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--daidai);
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 13px;
}

.bf-page-header__json-link a:hover {
  text-decoration: underline;
  opacity: 1;
}

/* ----------------------------------------
   2. Body Layout
   ---------------------------------------- */
.bf-body {
  background: var(--shiro1);
}

.bf-body__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 40px 96px;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 56px;
  align-items: start;
}

/* ----------------------------------------
   3. Article
   ---------------------------------------- */
.bf-article {
  min-width: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--kuro1);
}

.bf-article p + p { margin-top: 1em; }

.bf-article strong { color: var(--kuro1); }

/* ----------------------------------------
   4. Infobox (Wikipedia-style)
   ---------------------------------------- */
.bf-infobox {
  float: right;
  clear: right;
  margin: 0 0 28px 36px;
  width: 280px;
  background: var(--shiro2);
  border: 0.5px solid var(--shiro3);
  border-radius: 8px;
  overflow: hidden;
  font-size: 13px;
}

.bf-infobox__header {
  background: var(--kuro1);
  padding: 16px 20px;
  text-align: center;
}

.bf-infobox__logo-text {
  display: block;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--shiro1);
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.bf-infobox__tagline {
  font-size: 13px;
  color: var(--shiro3);
  letter-spacing: 0.05em;
}

.bf-infobox__table {
  width: 100%;
  border-collapse: collapse;
}

.bf-infobox__table tr {
  border-bottom: 0.5px solid var(--shiro3);
}

.bf-infobox__table tr:last-child {
  border-bottom: none;
}

.bf-infobox__table th,
.bf-infobox__table td {
  padding: 9px 14px;
  vertical-align: top;
  text-align: left;
  font-size: 13px;
  line-height: 1.5;
}

.bf-infobox__table th {
  white-space: nowrap;
  color: var(--kuro4);
  font-weight: 500;
  width: 40%;
  background: var(--shiro2);
}

.bf-infobox__table td {
  color: var(--kuro1);
  font-weight: 500;
}

.bf-infobox__table a {
  color: var(--daidai);
  word-break: break-all;
}

/* ----------------------------------------
   5. Table of Contents
   ---------------------------------------- */
.bf-toc {
  clear: left;
  display: inline-block;
  min-width: 240px;
  max-width: 360px;
  background: var(--shiro2);
  border: 0.5px solid var(--shiro3);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 0 0 36px;
  font-size: 13px;
}

.bf-toc__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  color: var(--kuro1);
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
}

.bf-toc__toggle {
  font-size: 13px;
  font-weight: 500;
  color: var(--daidai);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 8px;
  transition: background 0.15s;
}

.bf-toc__toggle:hover { background: var(--shiro3); }

.bf-toc__list {
  list-style: none;
  counter-reset: toc;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bf-toc__list > li {
  counter-increment: none;
}

.bf-toc__list a {
  color: var(--daidai);
  font-size: 13px;
  line-height: 1.4;
}

.bf-toc__list a:hover {
  text-decoration: underline;
  opacity: 1;
}

/* Nested list */
.bf-toc__list ol {
  list-style: none;
  margin-top: 5px;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bf-toc__list ol a {
  font-size: 13px;
  color: var(--kuro4);
}

.bf-toc__list ol a:hover { color: var(--daidai); }

/* ----------------------------------------
   6. Article Sections
   ---------------------------------------- */
.bf-section {
  margin-bottom: 48px;
  padding-bottom: 0;
}

.bf-section__title {
  font-family: var(--font-mincho);
  font-size: 32px;
  font-weight: 700;
  color: var(--kuro1);
  padding-bottom: 10px;
  border-bottom: 0.5px solid var(--kuro1);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.bf-section__subtitle {
  font-family: var(--font-mincho);
  font-size: 20px;
  font-weight: 700;
  color: var(--kuro1);
  border-left: 0.5px solid var(--daidai);
  padding-left: 12px;
  margin: 28px 0 14px;
}

/* Metrics grid */
.bf-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 24px 0;
}

.bf-metric {
  background: var(--shiro2);
  border-radius: 8px;
  padding: 20px;
  border: 0.5px solid var(--shiro3);
}

.bf-metric__num {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  color: var(--kuro1);
  line-height: 1;
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 3px;
  flex-wrap: wrap;
}

.bf-metric__num span {
  font-size: 16px;
  font-weight: 700;
  color: var(--daidai);
}

.bf-metric__label {
  font-size: 13px;
  font-weight: 700;
  color: var(--kuro1);
  margin-bottom: 8px;
}

.bf-metric__desc {
  font-size: 13px;
  color: var(--kuro4);
  line-height: 1.6;
  margin-top: 0 !important;
}

/* Note box */
.bf-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--shiro2);
  border-left: 0.5px solid var(--kuro4);
  border-radius: 0 8px 8px 0;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--kuro4);
  line-height: 1.6;
  margin-top: 16px;
}

.bf-note svg { flex-shrink: 0; margin-top: 2px; }

/* ----------------------------------------
   7. Tables
   ---------------------------------------- */
.bf-service-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border-radius: 8px;
  border: 0.5px solid var(--shiro3);
}

.bf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.bf-table caption {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--kuro4);
  text-align: left;
  padding: 12px 16px 8px;
  background: var(--shiro2);
  text-transform: uppercase;
  border-bottom: 0.5px solid var(--shiro3);
}

.bf-table thead th {
  background: var(--kuro1);
  color: var(--shiro1);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 12px 16px;
  text-align: left;
  white-space: nowrap;
}

.bf-table tbody tr {
  border-bottom: 0.5px solid var(--shiro3);
  transition: background 0.15s;
}

.bf-table tbody tr:last-child { border-bottom: none; }
.bf-table tbody tr:hover { background: var(--shiro2); }

.bf-table tbody td {
  padding: 12px 16px;
  color: var(--kuro1);
  vertical-align: top;
  line-height: 1.6;
}

.bf-table tbody td strong { color: var(--kuro1); }

/* History table */
.bf-history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
}

.bf-history-table tr {
  border-bottom: 0.5px solid var(--shiro3);
}

.bf-history-table tr:last-child { border-bottom: none; }

.bf-history-table th {
  width: 100px;
  padding: 14px 20px 14px 0;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  color: var(--kuro1);
  vertical-align: top;
  white-space: nowrap;
}

.bf-history-table td {
  padding: 14px 0;
  color: var(--kuro1);
  line-height: 1.8;
}

/* Company overview table */
.bf-company-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
}

.bf-company-table tr {
  border-bottom: 0.5px solid var(--shiro3);
}

.bf-company-table tr:last-child { border-bottom: none; }

.bf-company-table th {
  width: 160px;
  padding: 14px 16px 14px 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--kuro4);
  vertical-align: top;
  white-space: nowrap;
}

.bf-company-table td {
  padding: 14px 0;
  color: var(--kuro1);
  line-height: 1.8;
}

.bf-company-table a { color: var(--daidai); }
.bf-company-table a:hover { text-decoration: underline; opacity: 1; }

/* ----------------------------------------
   8. Sidebar
   ---------------------------------------- */
.bf-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.bf-sidebar-widget {
  background: var(--shiro2);
  border: 0.5px solid var(--shiro3);
  border-radius: 8px;
  padding: 20px;
}

.bf-sidebar-widget__title {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--daidai);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.bf-sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bf-sidebar-links a {
  font-size: 13px;
  color: var(--kuro1);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s;
}

.bf-sidebar-links a::before {
  content: '›';
  color: var(--daidai);
  font-size: 16px;
  line-height: 1;
}

.bf-sidebar-links a:hover { color: var(--daidai); opacity: 1; }

.bf-sidebar-widget__desc {
  font-size: 13px;
  color: var(--kuro4);
  line-height: 1.6;
  margin-bottom: 12px;
}

.bf-sidebar-widget__meta {
  font-size: 13px;
  color: var(--kuro4);
  line-height: 1.6;
  margin-top: 10px;
  font-family: var(--font-heading);
}

/* JSON button */
.bf-json-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--kuro1);
  color: var(--shiro1);
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  font-family: var(--font-heading);
  transition: background 0.15s;
  word-break: break-all;
}

.bf-json-btn svg { flex-shrink: 0; }

.bf-json-btn:hover { background: var(--kuro3); opacity: 1; }

/* ----------------------------------------
   9. Responsive
   ---------------------------------------- */
@media (max-width: 1024px) {
  .bf-body__inner {
    grid-template-columns: 1fr 240px;
    gap: 40px;
    padding: 40px 32px 80px;
  }

  .bf-page-header__inner { padding: 32px 32px 28px; }

  .bf-infobox { width: 240px; }

  .bf-metrics { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .bf-page-header__inner { padding: 24px 24px 20px; }

  .bf-body__inner {
    grid-template-columns: 1fr;
    padding: 32px 24px 64px;
    gap: 40px;
  }

  .bf-sidebar { position: static; order: -1; }

  /* Move infobox: float none on mobile */
  .bf-infobox {
    float: none;
    width: 100%;
    margin: 0 0 28px;
  }

  .bf-toc { max-width: 100%; display: block; }

  .bf-metrics { grid-template-columns: 1fr; gap: 12px; }

  .bf-metric__num { font-size: 32px; }

  .bf-history-table th { width: 80px; font-size: 13px; }

  .bf-company-table th { width: 120px; }
}

@media (max-width: 480px) {
  .bf-page-header__title { font-size: 32px; }

  .bf-metrics { grid-template-columns: 1fr; }
}