@charset "UTF-8";

*, *::before, *::after { box-sizing: border-box; }

:root {
  color-scheme: dark;
  --bg: #10120f;
  --bg-grid: rgba(231, 165, 50, 0.045);
  --surface: #191c18;
  --surface-2: #22261f;
  --surface-3: #2b3028;
  --paper: #e7e0cf;
  --paper-ink: #27251e;
  --line: #3d4438;
  --line-strong: #596151;
  --text: #e9e8e1;
  --text-strong: #fffef8;
  --muted: #a4a99c;
  --accent: #e6a532;
  --accent-soft: #3f321a;
  --accent-ink: #171109;
  --signal-green: #61c881;
  --signal-red: #ed685b;
  --signal-blue: #72aee8;
  --shadow: 0 22px 50px rgba(0, 0, 0, 0.36);
  --font: "IBM Plex Sans JP", "Yu Gothic UI", "Hiragino Kaku Gothic ProN", sans-serif;
  --serif: "IBM Plex Serif", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --mono: "IBM Plex Mono", "Cascadia Mono", Consolas, monospace;
  --content: 1180px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #d8d4c7;
  --bg-grid: rgba(58, 52, 36, 0.08);
  --surface: #f1eee5;
  --surface-2: #e7e2d6;
  --surface-3: #d8d2c3;
  --paper: #fffaf0;
  --paper-ink: #25231d;
  --line: #bab3a2;
  --line-strong: #8f8876;
  --text: #292820;
  --text-strong: #11110d;
  --muted: #696758;
  --accent: #9c5d08;
  --accent-soft: #efd9aa;
  --accent-ink: #fffaf0;
  --signal-green: #18733c;
  --signal-red: #a82f2b;
  --signal-blue: #245f9b;
  --shadow: 0 22px 50px rgba(73, 63, 40, 0.2);
}

html { scroll-behavior: smooth; }
body {
  min-width: 300px;
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--text);
  font-family: var(--font);
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}

button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--accent); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; }
code { font-family: var(--mono); }
[hidden] { display: none !important; }

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 0.7rem 1rem;
  background-color: var(--accent);
  color: var(--accent-ink);
  transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

.masthead {
  border-bottom: 1px solid var(--line);
  background-color: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.18);
}
.masthead__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  width: min(calc(100% - 2rem), var(--content));
  margin: 0 auto;
  padding: 1.1rem 0;
}
.mark { width: 58px; height: 58px; }
.masthead__title { margin: 0; color: var(--text-strong); font: 700 clamp(1.1rem, 3vw, 1.55rem)/1.2 var(--serif); }
.masthead__tagline { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.78rem; letter-spacing: 0.08em; }
.masthead__tagline code { color: var(--accent); }

.theme-switch {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 3px;
  border: 1px solid var(--line);
  background-color: var(--bg);
}
.theme-switch__option { cursor: pointer; }
.theme-switch__option input { position: absolute; opacity: 0; pointer-events: none; }
.theme-switch__option span { display: block; padding: 0.38rem 0.58rem; color: var(--muted); font-size: 0.72rem; }
.theme-switch__option input:checked + span { background-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
.theme-switch__option input:focus-visible + span { outline: 2px solid var(--signal-blue); outline-offset: 2px; }

.site-nav {
  display: flex;
  gap: 0;
  width: min(calc(100% - 2rem), var(--content));
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: thin;
}
.site-nav a {
  position: relative;
  flex: 0 0 auto;
  padding: 0.75rem 1rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.site-nav a:hover { color: var(--text-strong); background-color: var(--surface-2); }
.site-nav a[aria-current="page"] { color: var(--text-strong); }
.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 0.8rem;
  bottom: 0;
  left: 0.8rem;
  height: 3px;
  background-color: var(--accent);
}

main { width: min(calc(100% - 2rem), var(--content)); margin: 0 auto; padding: 2rem 0 4rem; }
.eyebrow { margin: 0 0 0.65rem; color: var(--accent); font: 600 0.78rem/1.3 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; }

.stats { margin: 1rem 0 0; }
.stats__list { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; border: 1px solid var(--line); background-color: var(--surface); }
.stats__list > div { min-width: 0; padding: 1rem 1.1rem; border-right: 1px solid var(--line); }
.stats__list > div:last-child { border-right: 0; }
.stats dt { color: var(--muted); font-size: 0.72rem; letter-spacing: 0.08em; }
.stats dd { margin: 0.2rem 0 0; color: var(--text-strong); font: 600 1.15rem/1.25 var(--mono); }

.catalog-shell { margin-top: 2rem; }
.section-heading { display: flex; gap: 1rem; justify-content: space-between; align-items: end; margin-bottom: 0.8rem; }
.section-heading h2 { margin: 0; color: var(--text-strong); font: 700 clamp(1.5rem, 3vw, 2.2rem)/1.2 var(--serif); }
.source-line { max-width: 560px; margin: 0; color: var(--muted); font-size: 0.76rem; text-align: right; }

.controls { padding: 1rem; border: 1px solid var(--line); background-color: var(--surface); }
.controls__top { display: grid; grid-template-columns: minmax(220px, 1fr) auto auto; gap: 0.75rem; align-items: center; }
.search { position: relative; display: flex; align-items: center; }
.search__prompt { position: absolute; left: 0.8rem; color: var(--accent); font: 700 1rem/1 var(--mono); pointer-events: none; }
.search input {
  width: 100%;
  min-width: 0;
  padding: 0.72rem 2.5rem 0.72rem 2rem;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  outline: 0;
  background-color: var(--bg);
  color: var(--text);
}
.search input:focus { border-color: var(--accent); box-shadow: inset 4px 0 0 var(--accent); }
.search__clear { position: absolute; right: 0.35rem; width: 2rem; height: 2rem; border: 0; background-color: transparent; color: var(--muted); cursor: pointer; }
.select-wrap { display: flex; align-items: center; gap: 0.45rem; }
.select-wrap label { color: var(--muted); font-size: 0.76rem; }
select { padding: 0.68rem 2rem 0.68rem 0.75rem; border: 1px solid var(--line-strong); border-radius: 0; background-color: var(--bg); color: var(--text); }
.view-toggle { display: flex; border: 1px solid var(--line-strong); }
.view-toggle button { padding: 0.66rem 0.8rem; border: 0; background-color: var(--bg); color: var(--muted); cursor: pointer; }
.view-toggle button + button { border-left: 1px solid var(--line-strong); }
.view-toggle button.is-active { background-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
.filter-group { margin: 1rem 0 0; padding: 0; border: 0; }
.filter-group legend { margin-bottom: 0.5rem; color: var(--muted); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.08em; }
.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chip { display: inline-flex; gap: 0.5rem; align-items: center; padding: 0.42rem 0.65rem; border: 1px solid var(--line-strong); background-color: var(--bg); color: var(--muted); cursor: pointer; }
.chip small { color: inherit; font: 500 0.7rem/1 var(--mono); opacity: 0.72; }
.chip:hover { color: var(--text-strong); border-color: var(--accent); }
.chip[aria-pressed="true"] { border-color: var(--accent); background-color: var(--accent-soft); color: var(--text-strong); box-shadow: inset 3px 0 0 var(--accent); }
.controls__foot { display: flex; justify-content: space-between; align-items: center; margin-top: 1rem; padding-top: 0.8rem; border-top: 1px solid var(--line); }
.result-count { color: var(--text-strong); font: 600 0.85rem/1 var(--mono); }
.button-quiet { padding: 0.45rem 0.7rem; border: 1px solid var(--line); background-color: transparent; color: var(--muted); cursor: pointer; }
.button-quiet:hover:not(:disabled) { color: var(--text-strong); border-color: var(--accent); }
.button-quiet:disabled { opacity: 0.42; cursor: default; }

.record-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
.record-card {
  --record-color: var(--accent);
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 100%;
  flex-direction: column;
  padding: 1.1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0;
  background-color: var(--surface);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}
.record-card:hover, .record-card:focus-visible { transform: translateY(-3px); border-color: var(--record-color); box-shadow: var(--shadow); outline: 0; }
.record-card__rail { position: absolute; inset: 0 auto 0 0; width: 4px; background-color: var(--record-color); }
.record-card__head { display: flex; gap: 0.6rem; justify-content: space-between; align-items: center; }
.record-card__media { display: block; overflow: hidden; margin: 0.9rem -0.25rem 0; border: 1px solid var(--line); background-color: var(--bg); }
.record-card__media img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 1; object-fit: cover; }
.record-card__code { color: var(--record-color); font: 700 0.78rem/1 var(--mono); letter-spacing: 0.09em; }
.record-card__category { color: var(--muted); font-size: 0.7rem; }
.record-card__title { margin-top: 1rem; color: var(--text-strong); font: 700 1.28rem/1.25 var(--serif); }
.record-card__en { margin-top: 0.12rem; color: var(--muted); font: 500 0.72rem/1.3 var(--mono); }
.record-card__summary { margin-top: 0.75rem; color: var(--muted); font-size: 0.86rem; line-height: 1.65; }
.record-card__facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 1rem 0 0; padding: 1px; list-style: none; background-color: var(--line); }
.record-card__facts li { min-width: 0; padding: 0.65rem; background-color: var(--surface-2); }
.record-card__facts span, .record-card__facts strong { display: block; }
.record-card__facts span { color: var(--muted); font-size: 0.66rem; }
.record-card__facts strong { margin-top: 0.2rem; overflow-wrap: anywhere; color: var(--text-strong); font-size: 0.78rem; }
.record-card__tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.85rem; }
.tag { padding: 0.2rem 0.4rem; background-color: var(--surface-3); color: var(--muted); font-size: 0.66rem; }
.record-card__more { margin-top: auto; padding-top: 1rem; color: var(--record-color); font-size: 0.76rem; font-weight: 700; }

.table-wrap { margin-top: 1rem; overflow-x: auto; border: 1px solid var(--line); background-color: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
th, td { padding: 0.75rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead { background-color: var(--surface-2); }
thead button { width: 100%; padding: 0; border: 0; background-color: transparent; color: var(--text-strong); text-align: left; font-weight: 700; cursor: pointer; }
tbody tr { cursor: pointer; }
tbody tr:hover, tbody tr:focus-visible { outline: 0; background-color: var(--accent-soft); }
tbody th { color: var(--text-strong); white-space: nowrap; }

.empty, .load-error { margin-top: 1rem; padding: 2rem; border: 1px dashed var(--line-strong); background-color: var(--surface); text-align: center; }
.empty strong, .load-error strong { display: block; color: var(--text-strong); font: 700 1.25rem/1.3 var(--serif); }
.empty p, .load-error p { margin: 0.45rem 0 0; color: var(--muted); }

.record-dialog { width: min(820px, calc(100% - 2rem)); max-height: min(88vh, 900px); padding: 0; border: 1px solid var(--line-strong); border-radius: 0; background-color: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.record-dialog::backdrop { background-color: rgba(4, 5, 4, 0.78); backdrop-filter: blur(3px); }
.dialog-close { position: sticky; z-index: 2; top: 0.75rem; float: right; width: 2.5rem; height: 2.5rem; margin: 0.75rem 0.75rem 0 0; border: 1px solid var(--line); background-color: var(--bg); color: var(--text); font-size: 1.35rem; cursor: pointer; }
.dialog-close:hover { border-color: var(--signal-red); color: var(--signal-red); }
.dialog-head { padding: 2rem 2rem 1.4rem; border-bottom: 1px solid var(--line); background-color: var(--surface-2); }
.dialog-head h2 { margin: 0; color: var(--text-strong); font: 700 clamp(1.8rem, 5vw, 3rem)/1.1 var(--serif); }
.dialog-head p:last-child { max-width: 680px; margin: 0.8rem 0 0; color: var(--muted); }
.dialog-media { overflow: hidden; border-bottom: 1px solid var(--line); background-color: var(--bg); }
.dialog-media img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 1; object-fit: cover; }
.dialog-body { padding: 1.5rem 2rem 2rem; }

.page-title { margin: 0 0 1rem; color: var(--text-strong); font: 700 clamp(1.75rem, 4vw, 2.6rem)/1.15 var(--serif); }
.route-shell { margin-top: 1.5rem; }
.route-controls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) auto; gap: 0.8rem; align-items: end; padding: 1rem; border: 1px solid var(--line); background-color: var(--surface); }
.route-field { display: grid; gap: 0.35rem; min-width: 0; }
.route-field label { color: var(--muted); font: 600 0.72rem/1.2 var(--mono); }
.route-field select { width: 100%; min-height: 2.75rem; padding: 0.55rem 2rem 0.55rem 0.65rem; border: 1px solid var(--line-strong); background-color: var(--surface-2); color: var(--text-strong); font: inherit; }
.route-swap { min-height: 2.75rem; padding: 0.55rem 0.9rem; border: 1px solid var(--line-strong); background-color: var(--surface-2); color: var(--text-strong); cursor: pointer; }
.route-swap:hover { border-color: var(--signal-amber); }
.route-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(17rem, 26rem); gap: 1rem; margin-top: 1rem; align-items: start; }
.route-map-panel, .route-summary { border: 1px solid var(--line); background-color: var(--surface); }
.route-map-panel { overflow: auto; padding: 0.75rem; }
.route-map { display: block; width: 100%; min-width: 620px; height: auto; background-color: var(--surface-2); }
.route-line { fill: none; stroke: #ffb548; stroke-width: 8; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 0 5px rgba(255, 106, 45, 0.85)); }
.route-point { cursor: pointer; }
.route-point circle { fill: rgba(16, 24, 26, 0.82); stroke: rgba(255, 249, 226, 0.8); stroke-width: 2; }
.route-point:hover circle, .route-point:focus circle { stroke: var(--signal-amber); stroke-width: 5; outline: none; }
.route-point--from circle { fill: #2f9368; stroke: #aaf2ce; stroke-width: 6; }
.route-point--to circle { fill: #c65539; stroke: #ffd0ba; stroke-width: 6; }
.route-summary { padding: 1.15rem; }
.route-summary h2 { margin: 0; color: var(--text-strong); font: 700 1.4rem/1.2 var(--serif); }
.route-summary__job { margin: 0.7rem 0 0; color: var(--signal-amber); font: 600 0.8rem/1.4 var(--mono); }
.route-summary__description { margin: 0.65rem 0 0; color: var(--muted); font-size: 0.88rem; }
.route-metrics { display: grid; gap: 1px; margin: 1rem 0 0; background-color: var(--line); }
.route-metrics div { padding: 0.75rem; background-color: var(--surface-2); }
.route-metrics dt { color: var(--muted); font-size: 0.68rem; }
.route-metrics dd { margin: 0.2rem 0 0; color: var(--text-strong); font-weight: 700; overflow-wrap: anywhere; }
.route-notice { margin: 1rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.75rem; }
.route-status { margin: 0.75rem 0 0; color: var(--muted); font: 500 0.75rem/1.4 var(--mono); }
.detail-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0 0 1.5rem; border: 1px solid var(--line); }
.detail-facts > div { min-width: 0; padding: 0.75rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.detail-facts dt { color: var(--muted); font-size: 0.66rem; }
.detail-facts dd { margin: 0.2rem 0 0; overflow-wrap: anywhere; color: var(--text-strong); font-weight: 700; }
.detail-sections { display: grid; gap: 0; border-top: 1px solid var(--line); }
.detail-sections section { padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.detail-sections h3 { margin: 0; color: var(--accent); font: 700 1.15rem/1.3 var(--serif); }
.detail-sections p { margin: 0.55rem 0 0; }
.detail-sections ul { margin: 0.55rem 0 0; padding-left: 1.3rem; }
.detail-sources { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.2rem; }
.detail-sources::before { content: "出典"; width: 100%; color: var(--muted); font-size: 0.68rem; letter-spacing: 0.08em; }
.detail-sources a { padding: 0.35rem 0.55rem; border: 1px solid var(--line); color: var(--text); font-size: 0.72rem; text-decoration: none; }
.detail-sources a:hover { border-color: var(--accent); color: var(--accent); }

.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
.guide-card, .content-panel { padding: clamp(1.2rem, 3vw, 2rem); border: 1px solid var(--line); background-color: var(--surface); }
.guide-card__step { display: inline-grid; width: 2rem; height: 2rem; place-items: center; background-color: var(--accent); color: var(--accent-ink); font: 700 0.85rem/1 var(--mono); }
.guide-card h2, .content-panel h2 { margin: 0.8rem 0 0; color: var(--text-strong); font: 700 1.45rem/1.25 var(--serif); }
.guide-card p, .content-panel p { color: var(--muted); }
.guide-card ul, .content-panel ul { padding-left: 1.25rem; }
.callout { margin-top: 1rem; padding: 1rem; border-left: 4px solid var(--accent); background-color: var(--accent-soft); }
.callout strong { color: var(--text-strong); }
.checklist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.65rem; padding: 0; list-style: none; }
.checklist li { padding: 0.75rem; border: 1px solid var(--line); background-color: var(--surface-2); }
.checklist li::before { content: "✓"; margin-right: 0.5rem; color: var(--signal-green); font-weight: 700; }

/* ---------- 広告枠 ---------- */
.ad-slot {
  width: min(970px, 100%);
  margin: 0 auto;
  text-align: center;
}
.ad-slot__label {
  display: none;
  margin: 32px 0 6px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.16em;
}
.ad-slot:has(ins[data-ad-status="filled"]) .ad-slot__label { display: block; }
.ad-slot .adsbygoogle { max-width: 100%; }
.ad-slot ins[data-ad-status="unfilled"] { display: none !important; }
.ad-slot--top .ad-slot__label { margin-top: 14px; }
.ad-slot--top.is-reserving {
  min-height: 130px;
  margin-bottom: 12px;
}
.ad-slot--top:has(ins[data-ad-status="unfilled"]) { min-height: 0; margin-bottom: 0; }

.site-footer { border-top: 1px solid var(--line); background-color: var(--surface); }
.site-footer__inner { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: end; width: min(calc(100% - 2rem), var(--content)); margin: 0 auto; padding: 2rem 0; }
.site-footer p { margin: 0.2rem 0; color: var(--muted); font-size: 0.75rem; }
.site-footer strong { color: var(--text-strong); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: end; }
.footer-nav a { color: var(--muted); font-size: 0.75rem; }

@media (max-width: 900px) {
  .route-layout { grid-template-columns: 1fr; }
  .record-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .controls__top { grid-template-columns: 1fr auto; }
  .search { grid-column: 1 / -1; }
  .stats__list { grid-template-columns: repeat(2, 1fr); }
  .stats__list > div:nth-child(2) { border-right: 0; }
  .stats__list > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 640px) {
  .route-controls { grid-template-columns: 1fr; }
  .route-swap { width: 100%; }
  .masthead__inner { grid-template-columns: auto 1fr; }
  .theme-switch { grid-column: 1 / -1; justify-self: stretch; }
  .theme-switch__option { flex: 1; text-align: center; }
  .section-heading { display: block; }
  .source-line { margin-top: 0.35rem; text-align: left; }
  .controls__top { display: flex; flex-wrap: wrap; }
  .search { width: 100%; }
  .select-wrap { flex: 1; min-width: 0; }
  .select-wrap select { width: 100%; min-width: 0; }
  .record-grid, .guide-grid { grid-template-columns: 1fr; }
  .detail-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dialog-head, .dialog-body { padding-left: 1.2rem; padding-right: 1.2rem; }
  .checklist { grid-template-columns: 1fr; }
  .site-footer__inner { grid-template-columns: 1fr; }
  .footer-nav { justify-content: start; }
}

@media (max-width: 420px) {
  main, .masthead__inner, .site-nav, .site-footer__inner { width: min(calc(100% - 1rem), var(--content)); }
  .stats__list { grid-template-columns: 1fr; }
  .stats__list > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .stats__list > div:last-child { border-bottom: 0; }
  .record-card__facts { grid-template-columns: 1fr; }
  .detail-facts { grid-template-columns: 1fr; }
  .view-toggle { width: 100%; }
  .view-toggle button { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}