:root {
  --bg: #f4f4f1;
  --panel: #fbfbf8;
  --panel-raised: #ffffff;
  --panel-soft: #ecefec;
  --ink: #202124;
  --muted: #666a70;
  --line: #d7d9d5;
  --line-strong: #b9beb8;
  --accent: #27384a;
  --accent-soft: #e4e9ed;
  --accent-warm: #8a6f3f;
  --code-bg: #eef0ed;
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--bg); color: var(--ink); }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 90%;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(39, 56, 74, 0.07), transparent 28rem),
    linear-gradient(180deg, #f7f7f4 0%, var(--bg) 38%, #ededeb 100%);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  width: min(980px, calc(100vw - 24px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 251, 248, 0.94);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0 12px;
}

.site-id a {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.site-id p,
.site-footer .muted,
.muted,
.meta {
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  flex: 1 0 100%;
  gap: 12px;
  order: 4;
  font-size: 0.94rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-search {
  position: relative;
  flex: 1 1 300px;
  max-width: 430px;
  z-index: 20;
}

.site-search-field {
  display: flex;
  align-items: center;
  min-height: 40px;
  border: 1px solid var(--line-strong);
  background: var(--panel-raised);
}

.site-search:focus-within .site-search-field {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.site-search-icon {
  padding-left: 11px;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1;
}

.site-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  padding: 8px 9px;
}

.site-search-key {
  margin-right: 8px;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  line-height: 1;
  padding: 4px 5px;
}

.site-search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: min(65vh, 480px);
  overflow-y: auto;
  border: 1px solid var(--line-strong);
  background: var(--panel-raised);
  box-shadow: 0 12px 32px rgba(32, 33, 36, 0.18);
}

.site-search-results[hidden] { display: none; }

.site-search-option {
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.site-search-option:last-child { border-bottom: 0; }

.site-search-option:hover,
.site-search-option.is-active {
  background: var(--accent-soft);
  text-decoration: none;
}

.site-search-option-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.site-search-option-title { font-weight: 700; }

.site-search-option-type {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 0.78rem;
}

.site-search-option-summary {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.site-search-state {
  margin: 0;
  padding: 14px 12px;
  color: var(--muted);
  text-align: center;
}

.search-page-panel { display: grid; gap: 12px; }

.search-page-form { display: grid; gap: 8px; }

.search-page-row {
  display: flex;
  gap: 8px;
}

.search-page-row input,
.search-page-filter select {
  border: 1px solid var(--line-strong);
  background: var(--panel-raised);
  color: var(--ink);
  font: inherit;
  padding: 9px 10px;
}

.search-page-row input { flex: 1; min-width: 0; }

.search-page-row button {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--panel);
  font: inherit;
  padding: 8px 16px;
  cursor: pointer;
}

.search-page-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.search-page-google { margin: 0; color: var(--muted); }

.full-search-results { display: grid; gap: 10px; }

.full-search-result {
  border: 1px solid var(--line);
  background: var(--panel-raised);
  padding: 14px;
}

.full-search-result h3 { margin-bottom: 4px; }
.full-search-result p { margin: 5px 0 0; }
.full-search-result .meta { font-size: 0.84rem; }

.full-search-empty { color: var(--muted); margin: 0; }

.nomenclature-results {
  display: grid;
  gap: .75rem;
  margin-top: 1rem;
}

.nomenclature-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  padding: 1rem;
}

.nomenclature-card h3 {
  margin: 0 0 .45rem;
  font-size: 1rem;
}

.nomenclature-legacy-heading {
  margin: 1rem 0 0;
  font-size: 1rem;
}

.nomenclature-card dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: .3rem .75rem;
  margin: 0;
  font-size: .9rem;
}

.nomenclature-card dt { color: var(--muted); }
.nomenclature-card dd { margin: 0; }

.site-auth {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-left: auto;
  order: 3;
  font-size: 0.9rem;
  white-space: nowrap;
}

.auth-login,
.auth-user,
.auth-logout {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 5px 9px;
}

.auth-user {
  color: var(--accent);
  font-weight: 700;
}

.auth-logout {
  cursor: pointer;
  font: inherit;
}

.auth-logout:hover,
.auth-login:hover {
  background: var(--soft);
  text-decoration: none;
}

main { padding: 18px 0 36px; }

.hero-block,
.plain-section {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 18px;
  margin-bottom: 14px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

h1, h2, h3 {
  line-height: 1.32;
  margin: 0 0 10px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(1.45rem, 3vw, 1.875rem); }
h2 { font-size: 1.12rem; }
h3 { font-size: 1rem; }

.hero-subtitle,
.lead {
  font-size: 1rem;
}

.hero-note {
  padding-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.button {
  display: inline-block;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--panel);
  padding: 8px 14px;
}

.button:hover {
  text-decoration: none;
  filter: brightness(1.05);
}

.button-secondary {
  background: var(--accent-soft);
  color: var(--accent);
}

.label-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 12px;
}

.label-grid span {
  border: 1px solid var(--line);
  padding: 4px 9px;
  background: var(--panel-soft);
  font-size: 0.9rem;
}

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--panel-soft); }

.section-head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
}

.update-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.knowledge-grid,
.rule-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.update-card {
  border: 1px solid var(--line);
  padding: 14px;
  background: var(--panel-raised);
}

.knowledge-card,
.rule-grid article,
.summary-box,
.guard-box,
.article-side,
.side-panel {
  border: 1px solid var(--line);
  padding: 14px;
  background: var(--panel-raised);
}

.design-card p {
  margin: 0;
}

.update-card p,
.knowledge-card p { margin: 0; }
.update-card h3 { margin-top: 6px; }
.knowledge-card h3 { margin: 6px 0 8px; }

.status-pill {
  display: inline-block;
  width: fit-content;
  border: 1px solid var(--line);
  background: var(--accent-soft);
  color: var(--accent);
  padding: 2px 8px;
  font-size: 0.82rem;
}

.source-policy {
  color: var(--muted);
  font-size: 0.9rem;
}

.mini-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.mini-link {
  border: 1px solid var(--line);
  background: var(--panel-soft);
  padding: 5px 9px;
  font-size: 0.9rem;
}

.guard-section,
.article-shell,
.knowledge-layout {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr) 280px;
  align-items: start;
}

.article-shell {
  grid-template-columns: minmax(0, 1fr) 300px;
}

.side-nav {
  display: grid;
  gap: 8px;
}

.side-nav a {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}

.status-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 10px;
  margin: 0 0 12px;
}

.status-list dt {
  color: var(--muted);
}

.status-list dd {
  margin: 0;
}

.steps,
.bullet-list {
  margin: 0;
  padding-left: 1.2rem;
}

.two-column {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 18px 0 26px;
}

.doc-actions {
  margin-bottom: 14px;
}

.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  margin-top: 22px;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre {
  margin: 0 0 14px;
}

.markdown-body blockquote {
  margin-left: 0;
  padding: 10px 14px;
  border-left: 3px solid var(--line-strong);
  background: var(--panel-soft);
}

.markdown-body code {
  background: var(--code-bg);
  padding: 1px 5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.94em;
}

.markdown-body pre {
  overflow-x: auto;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--panel-soft);
}

.markdown-body pre code {
  background: transparent;
  padding: 0;
}

.db-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.db-stats span {
  border: 1px solid var(--line);
  background: var(--panel-raised);
  padding: 6px 10px;
}

.db-search-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
}

.db-search {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: var(--panel-raised);
  color: var(--ink);
  font: inherit;
  padding: 10px 12px;
}

.db-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.db-filter-label {
  display: grid;
  gap: 4px;
  min-width: min(280px, 100%);
  color: var(--muted);
}

.db-filter {
  border: 1px solid var(--line-strong);
  background: var(--panel-raised);
  color: var(--ink);
  font: inherit;
  padding: 9px 10px;
}

.db-table-wrap {
  max-height: 70vh;
  border: 1px solid var(--line);
  background: var(--panel-raised);
}

.db-table {
  min-width: 1480px;
  font-size: 0.88rem;
}

.page-eiketsu-db .db-table {
  min-width: 1720px;
}

.db-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--panel-soft);
}

.db-table th:first-child {
  left: 0;
  z-index: 3;
}

.db-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--panel-raised);
  box-shadow: 1px 0 0 var(--line);
}

.db-table th button {
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  padding: 0;
  text-align: left;
}

.db-table th button::after {
  content: " ⇅";
  color: var(--muted);
  font-size: 0.78em;
}

.db-table th button[data-sort-direction="asc"]::after {
  content: " ↑";
  color: var(--accent);
}

.db-table th button[data-sort-direction="desc"]::after {
  content: " ↓";
  color: var(--accent);
}

.db-table .num {
  text-align: right;
  white-space: nowrap;
}

.db-table tr[hidden] {
  display: none;
}

.db-view-hint {
  margin-top: -4px;
}

.contribution-layout {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
}

.chat-panel,
.mini-card {
  border: 1px solid var(--line);
  background: var(--panel-raised);
  padding: 14px;
}

.chat-log {
  display: grid;
  gap: 8px;
  max-height: 360px;
  overflow: auto;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  padding: 10px;
  margin-bottom: 12px;
}

.chat-message {
  max-width: 88%;
  border: 1px solid var(--line);
  background: var(--panel-raised);
  padding: 9px 11px;
}

.chat-message.user {
  justify-self: end;
  background: var(--accent-soft);
}

.chat-message.bot {
  justify-self: start;
}

.chat-input {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: var(--panel-raised);
  color: var(--ink);
  font: inherit;
  padding: 10px 12px;
  resize: vertical;
}

.locked-upload {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px dashed var(--line-strong);
  background: var(--panel-soft);
  padding: 12px;
  margin-top: 12px;
}

.locked-upload p {
  margin: 4px 0 0;
}

.contribution-sidebar {
  display: grid;
  align-content: start;
  gap: 12px;
}

.status-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.status-grid span {
  border: 1px solid var(--line);
  background: var(--panel-raised);
  padding: 9px 10px;
}

@media (max-width: 720px) {
  body {
    font-size: 95%;
    line-height: 1.75;
  }

  h1 {
    font-size: 1.45rem;
  }

  .site-header .wrap {
    align-items: start;
    flex-direction: column;
  }

  .site-search {
    flex-basis: auto;
    width: 100%;
    max-width: none;
    order: 2;
  }

  .search-page-row {
    align-items: stretch;
    flex-direction: column;
  }

  .search-page-row button {
    width: 100%;
  }

  .site-nav {
    order: 3;
  }

  .site-auth {
    justify-content: flex-start;
    margin-left: 0;
    white-space: normal;
    order: 4;
  }

  .wrap {
    width: min(980px, calc(100vw - 16px));
  }

  .hero-block,
  .plain-section {
    padding: 14px;
  }

  .guard-section,
  .article-shell,
  .knowledge-layout,
  .contribution-layout {
    grid-template-columns: 1fr;
  }

  .locked-upload {
    align-items: stretch;
    flex-direction: column;
  }

  .db-table-wrap {
    max-height: 72vh;
  }

  .db-table {
    min-width: 760px;
    font-size: 0.82rem;
  }

  .page-eiketsu-db .db-table {
    min-width: 900px;
  }

  .db-table .db-priority-stat,
  .db-table .db-priority-secondary {
    display: none;
  }

  .db-table th,
  .db-table td {
    padding: 7px 8px;
  }
}