/* ============================================================
   議会のちから — 公文書×印章
   墨黒＋朱（市議選ナビの青とは意図的に別意匠）
   動的DOM（Simulatorの結果）のスタイルも必ずこのファイルに置く
   ============================================================ */

:root {
  /* 既定=ライト（JS無効時もここで成立させる） */
  --bg: #f6f3ec;
  --surface: #fdfbf6;
  --surface-2: #f1ede3;
  --fg: #1d1a16;
  --muted: #6b655c;
  --line: #ddd6c8;
  --accent: #a63c2b;
  --accent-soft: #c4553f;
  --ink: #16140f;          /* ヒーロー用の墨（両テーマ共通） */
  --ink-fg: #efe9dd;
  --ink-muted: #a49c8d;
  --ink-line: #37332a;
  --shadow: 0 1px 2px rgba(29, 26, 22, .05), 0 8px 28px rgba(29, 26, 22, .07);
  --shadow-lift: 0 2px 4px rgba(29, 26, 22, .06), 0 16px 44px rgba(29, 26, 22, .12);
  --serif: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", "BIZ UDPMincho", "Noto Serif JP", serif;
  --sans: system-ui, -apple-system, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  --radius: 18px;
}
:root[data-theme="dark"] {
  --bg: #131110;
  --surface: #1b1917;
  --surface-2: #211e1b;
  --fg: #ebe6db;
  --muted: #9c9488;
  --line: #322e28;
  --accent: #d98a72;
  --accent-soft: #b96a54;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 28px rgba(0, 0, 0, .35);
  --shadow-lift: 0 2px 4px rgba(0, 0, 0, .35), 0 18px 48px rgba(0, 0, 0, .5);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  margin: 0;
  font-family: var(--sans);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
}
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-soft); }
main { max-width: 1060px; margin: 0 auto; padding: 24px 20px 64px; }
::selection { background: var(--accent); color: #fff; }

/* ---- 数字は等幅・詰め ---- */
.num { font-variant-numeric: tabular-nums; letter-spacing: -.02em; }

/* ============ ヘッダー ============ */
.siteheader {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.siteheader-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 1060px;
  margin: 0 auto;
}
.siteheader-name {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: .06em;
  white-space: nowrap;
}
.siteheader-name svg { flex: none; }
.sitenav { display: flex; align-items: center; gap: 2px 16px; flex-wrap: wrap; justify-content: flex-end; }
.sitenav a {
  color: var(--muted);
  text-decoration: none;
  font-size: .86rem;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
}
.sitenav a:hover { color: var(--fg); border-bottom-color: var(--accent); }
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fg);
  cursor: pointer;
  font-size: .95rem;
  padding: 5px 12px;
  line-height: 1;
  box-shadow: var(--shadow);
}
.theme-toggle:hover { border-color: var(--accent); }
@media (max-width: 760px) {
  .sitenav { display: none; }
}

/* ============ 出現アニメーション ============ */
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
@keyframes stamp {
  0% { opacity: 0; transform: rotate(-8deg) scale(1.6); }
  60% { opacity: 1; transform: rotate(-8deg) scale(.94); }
  100% { opacity: 1; transform: rotate(-8deg) scale(1); }
}
.reveal { opacity: 0; animation: rise .7s cubic-bezier(.2, .7, .2, 1) forwards; }
.reveal-1 { animation-delay: .05s; }
.reveal-2 { animation-delay: .16s; }
.reveal-3 { animation-delay: .28s; }
.reveal-4 { animation-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; animation: none; }
  .hero-seal { animation: none !important; opacity: 1 !important; }
  html { scroll-behavior: auto; }
}

/* ============ ヒーロー（両テーマとも墨） ============ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(640px 320px at 88% -10%, rgba(166, 60, 43, .28), transparent 64%),
    repeating-linear-gradient(90deg, rgba(239, 233, 221, .035) 0 1px, transparent 1px 56px),
    var(--ink);
  color: var(--ink-fg);
  border-radius: var(--radius);
  padding: clamp(36px, 6vw, 84px) clamp(22px, 5.5vw, 72px);
  margin: 20px 0 36px;
  box-shadow: var(--shadow-lift);
}
.hero-overline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-soft);
  font-size: .8rem;
  letter-spacing: .32em;
  font-weight: 600;
  margin: 0 0 18px;
}
:root[data-theme="dark"] .hero-overline { color: var(--accent); }
.hero-overline::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.72rem, 4.6vw, 3.5rem);
  line-height: 1.4;
  letter-spacing: .02em;
  font-weight: 700;
  margin: 0 0 18px;
  max-width: 21em;
}
.hero h1 em {
  font-style: normal;
  color: #e39a82;
  text-shadow: 0 0 32px rgba(217, 138, 114, .35);
}
.hero-lede {
  color: var(--ink-muted);
  font-size: .98rem;
  max-width: 36em;
  margin: 0 0 26px;
}
.hero-lede strong { color: var(--ink-fg); font-weight: 600; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.hero-chips li {
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--ink-muted);
  border: 1px solid var(--ink-line);
  border-radius: 999px;
  padding: 4px 13px;
  background: rgba(0, 0, 0, .25);
}
.hero-seal {
  position: absolute;
  top: clamp(18px, 4vw, 38px);
  right: clamp(18px, 4.5vw, 48px);
  width: clamp(72px, 11vw, 112px);
  height: auto;
  opacity: .96;
  transform: rotate(-8deg);
  animation: stamp .55s cubic-bezier(.2, .7, .3, 1.2) .5s both;
  filter: drop-shadow(0 4px 18px rgba(166, 60, 43, .45));
}
@media (max-width: 640px) {
  .hero-seal { width: 60px; top: 14px; right: 14px; }
}

/* ============ 2025年セクション（トップ） ============ */
.case {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(26px, 5vw, 46px) clamp(22px, 5vw, 48px);
  margin: 0 0 36px;
}
.case-year {
  position: absolute;
  top: -14px;
  right: 6px;
  font-family: var(--serif);
  font-size: clamp(4.4rem, 12vw, 7rem);
  font-weight: 700;
  line-height: 1;
  color: color-mix(in srgb, var(--fg) 6%, transparent);
  letter-spacing: .04em;
  pointer-events: none;
  margin: 0;
  white-space: nowrap;
}
.case h2 {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 3.4vw, 1.8rem);
  letter-spacing: .04em;
  margin: 0 0 12px;
  position: relative;
}
.case-lede { color: var(--muted); font-size: .95rem; max-width: 42em; margin: 0 0 26px; position: relative; }
.case-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  position: relative;
}
.case-steps > li {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.case-steps > li:last-child { border-bottom: 1px solid var(--line); }
.case-step-num {
  flex: none;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  border: 1.5px solid color-mix(in srgb, var(--accent) 55%, var(--line));
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
  transform: rotate(-6deg);
  margin-top: 2px;
}
.case-steps h3 {
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: .03em;
  margin: 0 0 2px;
}
.case-steps li:last-child h3 { color: var(--accent); }
.case-steps p { margin: 0; font-size: .84rem; color: var(--muted); line-height: 1.7; }
.case-note { font-size: .76rem; color: var(--muted); margin: 14px 0 0; }
.case-note a { color: inherit; }
.case-bridge {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 2.6vw, 1.25rem);
  letter-spacing: .03em;
  margin: 26px 0 0;
  padding-top: 18px;
  text-align: center;
  position: relative;
}
.case-bridge::after {
  content: "▼";
  display: block;
  color: var(--accent);
  font-size: .8rem;
  margin-top: 10px;
  opacity: .8;
}

/* ============ セクション見出し ============ */
.section-title {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 3vw, 1.65rem);
  letter-spacing: .04em;
  margin: 56px 0 6px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
}
.section-lede { color: var(--muted); font-size: .92rem; margin: 0 0 22px; }

/* ============ シミュレーター ============ */
.sim {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(22px, 4vw, 36px);
  margin: 24px 0;
}
.sim > h2 {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 3vw, 1.55rem);
  letter-spacing: .03em;
  margin: 0 0 4px;
}
.sim-sub { color: var(--muted); font-size: .88rem; margin: 0 0 22px; }
.sim-input {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 8px;
}
@media (max-width: 620px) { .sim-input { grid-template-columns: 1fr; } }
.sim-field { display: grid; gap: 6px; }
.sim-field label { font-size: .82rem; color: var(--muted); letter-spacing: .04em; }
.sim-input input {
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
  padding: 12px 16px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  color: var(--fg);
  width: 100%;
  font-family: var(--sans);
  transition: border-color .15s, box-shadow .15s;
}
.sim-input input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

/* --- 結果（JS生成DOM。必ずここでスタイルする） --- */
.sim-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 22px 0 0;
}
@media (max-width: 620px) { .sim-stats { grid-template-columns: 1fr; } }
.sim-stat {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px 12px;
}
.sim-stat-label { font-size: .76rem; color: var(--muted); letter-spacing: .05em; display: block; }
.sim-stat-value {
  font-size: 1.9rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
  line-height: 1.3;
}
.sim-stat-value small { font-size: .9rem; font-weight: 500; color: var(--muted); margin-left: 2px; }
.sim-stat-note { font-size: .72rem; color: var(--muted); display: block; }

.sim-verdict {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 26px);
  background:
    radial-gradient(480px 200px at 0% 50%, rgba(166, 60, 43, .16), transparent 70%),
    var(--ink);
  color: var(--ink-fg);
  border-radius: 14px;
  padding: clamp(18px, 3.5vw, 26px) clamp(18px, 4vw, 30px);
  margin: 16px 0 0;
}
.sim-verdict-num {
  font-family: var(--serif);
  font-size: clamp(3rem, 9vw, 4.6rem);
  font-weight: 700;
  line-height: 1;
  color: #e39a82;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.03em;
  flex: none;
}
.sim-verdict-num small { font-size: .32em; font-weight: 500; color: var(--ink-muted); margin-left: 4px; letter-spacing: 0; }
.sim-verdict p { margin: 0; font-size: .95rem; line-height: 1.8; }
.sim-verdict p strong { color: #e39a82; font-weight: 600; }

.sim-vs {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  align-items: stretch;
  margin: 26px 0 0;
}
@media (max-width: 620px) { .sim-vs { grid-template-columns: 1fr; } }
.sim-vs-title {
  grid-column: 1 / -1;
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: .04em;
  margin: 0 0 2px;
}
.sim-vs-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
  background: var(--surface-2);
}
.sim-vs-card.is-giin { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); background: color-mix(in srgb, var(--accent) 7%, var(--surface-2)); }
.sim-vs-label { font-size: .76rem; color: var(--muted); letter-spacing: .05em; display: block; margin-bottom: 2px; }
.sim-vs-value {
  font-size: 1.55rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
}
.sim-vs-value small { font-size: .82rem; font-weight: 500; color: var(--muted); }
.sim-vs-note { font-size: .76rem; color: var(--muted); display: block; }
.sim-vs-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  color: var(--muted);
  font-size: .95rem;
}
@media (max-width: 620px) { .sim-vs-divider { padding: 2px 0; } }

.sim-caveat { font-size: .8rem; color: var(--muted); margin: 18px 0 0; }
.sim-error { color: var(--accent); font-weight: 600; margin: 18px 0 0; }

/* ============ 制度カード（トップ） ============ */
.seido-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 0 0 8px;
}
@media (min-width: 1000px) { .seido-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 680px) { .seido-grid { grid-template-columns: 1fr; } }
.seido-card {
  position: relative;
  overflow: hidden;
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px 20px;
  text-decoration: none;
  color: var(--fg);
  box-shadow: var(--shadow);
  transition: transform .18s cubic-bezier(.2, .7, .2, 1), box-shadow .18s, border-color .18s;
}
.seido-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  color: var(--fg);
}
.seido-card-jo {
  position: absolute;
  right: 10px;
  bottom: -18px;
  font-family: var(--serif);
  font-size: 4.6rem;
  font-weight: 700;
  line-height: 1;
  color: color-mix(in srgb, var(--fg) 7%, transparent);
  letter-spacing: -.04em;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}
.seido-card:hover .seido-card-jo { color: color-mix(in srgb, var(--accent) 20%, transparent); }
.seido-card-label { font-size: .72rem; letter-spacing: .14em; color: var(--accent); font-weight: 600; display: block; margin-bottom: 4px; }
.seido-card h3 {
  font-family: var(--serif);
  font-size: 1.18rem;
  letter-spacing: .03em;
  margin: 0 0 6px;
}
.seido-card p { font-size: .84rem; color: var(--muted); margin: 0; line-height: 1.7; max-width: 30em; }
.seido-card-arrow {
  position: absolute;
  top: 20px;
  right: 20px;
  color: var(--muted);
  font-size: .9rem;
  transition: transform .18s, color .18s;
}
.seido-card:hover .seido-card-arrow { transform: translateX(4px); color: var(--accent); }

/* 八王子カード（強調） */
.seido-card.is-hachioji {
  grid-column: 1 / -1;
  background:
    radial-gradient(520px 240px at 96% 0%, rgba(166, 60, 43, .22), transparent 68%),
    var(--ink);
  color: var(--ink-fg);
  border-color: var(--ink-line);
}
.seido-card.is-hachioji h3 { color: var(--ink-fg); font-size: 1.3rem; }
.seido-card.is-hachioji p { color: var(--ink-muted); max-width: 44em; }
.seido-card.is-hachioji .seido-card-jo { color: rgba(239, 233, 221, .07); }
.seido-card.is-hachioji:hover { color: var(--ink-fg); }
.seido-card.is-hachioji:hover .seido-card-jo { color: rgba(227, 154, 130, .18); }
.seido-card.is-hachioji .seido-card-label { color: #e39a82; }

/* ============ 記事ページ ============ */
.crumb { font-size: .82rem; color: var(--muted); margin: 6px 0 10px; letter-spacing: .03em; }
.crumb a { color: inherit; text-decoration: none; }
.crumb a:hover { color: var(--accent); }
.article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(24px, 5vw, 48px);
}
.article h1 {
  font-family: var(--serif);
  font-size: clamp(1.55rem, 4vw, 2.1rem);
  line-height: 1.5;
  letter-spacing: .02em;
  margin: 0 0 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.article h1::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 72px;
  height: 3px;
  background: var(--accent);
}
.article h2 {
  font-family: var(--serif);
  font-size: 1.25rem;
  letter-spacing: .03em;
  margin: 2.4em 0 .7em;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
  line-height: 1.5;
}
.article p { max-width: 42em; }
.article table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: .92rem; }
.article th { color: var(--muted); font-size: .82rem; font-weight: 600; letter-spacing: .04em; }
.article th, .article td { border-bottom: 1px solid var(--line); padding: 11px 10px; text-align: left; vertical-align: top; }
.article tbody tr:hover { background: color-mix(in srgb, var(--accent) 4%, transparent); }
.article strong { color: color-mix(in srgb, var(--accent) 70%, var(--fg)); }
.sources {
  margin-top: 3.2em;
  font-size: .82rem;
  color: var(--muted);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
}
.sources h2 { font-size: .9rem; margin: 0 0 8px; border: none; padding: 0; font-family: var(--serif); letter-spacing: .1em; }
.sources ul { margin: 0; padding-left: 1.2em; }
.sources li { margin: .35em 0; }
.sources a { color: inherit; }

/* ============ フッター ============ */
.footer {
  border-top: 1px solid var(--line);
  margin-top: 88px;
  padding: 44px 20px 56px;
  font-size: .86rem;
  color: var(--muted);
  background: var(--surface-2);
}
.footer-inner { max-width: 1060px; margin: 0 auto; }
.footer a { color: inherit; }
.footer a:hover { color: var(--accent); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  padding: 0 0 26px;
  margin: 0 0 28px;
  list-style: none;
  border-bottom: 1px solid var(--line);
}
.footer-nav a { text-decoration: none; }
.footer-brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--fg);
  letter-spacing: .08em;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 36px;
  margin: 0 0 20px;
  letter-spacing: .03em;
}
.footer-meta span { white-space: nowrap; }
.footer-meta a { text-decoration-color: color-mix(in srgb, var(--muted) 50%, transparent); }
.footer-note { font-size: .8rem; line-height: 2.1; max-width: 46em; letter-spacing: .02em; }