:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --text: #16191d;
  --text-dim: #5a626d;
  --line: #dfe3e8;
  --accent: #0f7a4d;
  --accent-soft: #e6f4ec;
  --hot: #c2410c;
  --hot-soft: #fdece3;
  --radius: 12px;
  --maxw: 880px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --surface: #171b21;
    --surface-2: #1e242c;
    --text: #e8eaed;
    --text-dim: #9aa3ae;
    --line: #2a313a;
    --accent: #35c78a;
    --accent-soft: #13291f;
    --hot: #ff8f5c;
    --hot-soft: #2c1a11;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP",
    "Yu Gothic UI", "Meiryo", sans-serif;
  line-height: 1.75;
  font-size: 16px;
}

a { color: var(--accent); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

/* ---------- header ---------- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  flex-wrap: wrap;
}
.brand {
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: .02em;
  white-space: nowrap;
}
.brand span { color: var(--accent); }
.nav { display: flex; gap: 14px; flex-wrap: wrap; margin-left: auto; }
.nav a {
  font-size: .875rem;
  text-decoration: none;
  color: var(--text-dim);
  padding: 4px 0;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--accent); }

/* ---------- layout ---------- */
main { padding: 24px 0 48px; }

h1 { font-size: 1.5rem; line-height: 1.4; margin: 0 0 4px; letter-spacing: .01em; }
h2 {
  font-size: 1.15rem;
  margin: 36px 0 12px;
  padding-left: 10px;
  border-left: 4px solid var(--accent);
  line-height: 1.5;
}
h3 { font-size: 1rem; margin: 24px 0 8px; }
p { margin: 0 0 14px; }
.lead { color: var(--text-dim); font-size: .95rem; margin-bottom: 24px; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin: 0 0 16px;
}

/* ---------- hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--accent-soft), var(--surface));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 24px;
}
.hero .label {
  font-size: .8rem;
  color: var(--text-dim);
  letter-spacing: .08em;
  margin-bottom: 6px;
}
.hero .amount {
  font-size: clamp(1.8rem, 7vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}
.hero .amount.hot { color: var(--hot); }
.hero .sub { color: var(--text-dim); font-size: .875rem; margin-top: 6px; }

/* ---------- stat grid ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 0 0 16px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat dt { font-size: .78rem; color: var(--text-dim); margin: 0 0 4px; }
.stat dd {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}
.stat dd .unit { font-size: .8rem; font-weight: 500; color: var(--text-dim); margin-left: 2px; }

/* ---------- tables ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 0 16px; }
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 520px;
  font-size: .9rem;
  background: var(--surface);
}
caption {
  text-align: left;
  font-size: .85rem;
  color: var(--text-dim);
  padding: 0 0 8px;
}
th, td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}
thead th {
  background: var(--surface-2);
  font-size: .8rem;
  color: var(--text-dim);
  font-weight: 600;
  white-space: nowrap;
}
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tbody tr:last-child td { border-bottom: none; }

.pill {
  display: inline-block;
  font-size: .72rem;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  white-space: nowrap;
}
.pill.hot { background: var(--hot-soft); color: var(--hot); }

/* ---------- list ---------- */
.rows { display: grid; gap: 10px; margin: 0 0 16px; }
.row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 16px;
  text-decoration: none;
  color: inherit;
  flex-wrap: wrap;
}
.row:hover { border-color: var(--accent); }
.row .date { font-size: .85rem; color: var(--text-dim); white-space: nowrap; }
.row .main { font-weight: 700; font-variant-numeric: tabular-nums; }
.row .tail { margin-left: auto; font-size: .82rem; color: var(--text-dim); white-space: nowrap; }

/* ---------- misc ---------- */
.note {
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: .85rem;
  color: var(--text-dim);
  margin: 0 0 16px;
}
.note strong { color: var(--text); }

.ad-slot { margin: 28px 0; min-height: 1px; }

ul, ol { padding-left: 1.4em; margin: 0 0 14px; }
li { margin-bottom: 6px; }

.breadcrumb { font-size: .8rem; color: var(--text-dim); margin: 0 0 12px; }
.breadcrumb a { color: var(--text-dim); }

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 24px 0;
  font-size: .82rem;
  color: var(--text-dim);
}
.site-footer .wrap > div { margin-bottom: 8px; }
.site-footer a { color: var(--text-dim); margin-right: 14px; }

.disclaimer {
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: .82rem;
  color: var(--text-dim);
  margin: 24px 0 0;
}