:root {
  --bg: #f7f6f2;
  --card: #ffffff;
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --line: #e2e0d8;
  --accent: #0b6e4f;
  --accent-soft: #e6f4ef;
  --warn: #8a5a00;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.04);
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
.wrap { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.site-header .inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 0; flex-wrap: wrap;
}
.logo {
  font-weight: 750; letter-spacing: -.02em; color: var(--ink); text-decoration: none;
  font-size: 1.05rem;
}
.logo span { color: var(--accent); }
nav { display: flex; gap: .9rem; flex-wrap: wrap; font-size: .92rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--ink); }
.hero { padding: 2.2rem 0 1.2rem; }
.hero h1 {
  margin: 0 0 .5rem; font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  letter-spacing: -.03em; line-height: 1.15;
}
.hero p { margin: 0; color: var(--muted); max-width: 62ch; }
.badge {
  display: inline-block; background: var(--accent-soft); color: var(--accent);
  font-size: .78rem; font-weight: 650; padding: .25rem .55rem; border-radius: 999px;
  margin-bottom: .75rem;
}
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1rem;
}
.filters {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: .75rem; margin: 1rem 0 1.1rem;
}
.filters label { display: grid; gap: .3rem; font-size: .8rem; color: var(--muted); font-weight: 600; }
.filters input, .filters select, .calc input, .calc select {
  width: 100%; padding: .55rem .65rem; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; font: inherit; color: var(--ink);
}
.table-scroll { overflow-x: auto; border-radius: 10px; border: 1px solid var(--line); }
table.cmp {
  width: 100%; border-collapse: collapse; min-width: 860px; background: #fff;
  font-size: .9rem;
}
table.cmp th, table.cmp td {
  padding: .65rem .7rem; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap;
}
table.cmp th {
  background: #fafaf7; position: sticky; top: 0; cursor: pointer; user-select: none;
  font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted);
}
table.cmp th:hover { color: var(--ink); }
table.cmp th .arrow { opacity: .35; margin-left: .25rem; }
table.cmp th.active .arrow { opacity: 1; color: var(--accent); }
table.cmp tr:hover td { background: #fbfcfa; }
table.cmp td.num, table.cmp th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: .86rem; }
table.cmp .brand { font-weight: 650; }
.muted { color: var(--muted); }
.gap { color: #9a9a9a; font-style: italic; }
.btn {
  display: inline-block; background: var(--accent); color: #fff !important; text-decoration: none;
  padding: .45rem .75rem; border-radius: 8px; font-size: .84rem; font-weight: 650; border: 0;
}
.btn.secondary { background: #fff; color: var(--ink) !important; border: 1px solid var(--line); }
.btn:hover { filter: brightness(.95); }
.grid-2 { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1rem; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }
.prose { max-width: 72ch; }
.prose h1 { letter-spacing: -.03em; margin-top: 0; }
.prose h2 { margin-top: 1.8rem; letter-spacing: -.02em; }
.prose p, .prose li { color: #2a2a2a; }
.note {
  background: #fff8e8; border: 1px solid #f0e0b8; color: var(--warn);
  padding: .75rem .9rem; border-radius: 10px; font-size: .9rem; margin: 1rem 0;
}
.site-footer {
  margin-top: 3rem; padding: 1.5rem 0 2.5rem; border-top: 1px solid var(--line);
  color: var(--muted); font-size: .86rem;
}
.site-footer .inner { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.pill-row { display: flex; gap: .5rem; flex-wrap: wrap; margin: 1rem 0; }
.pill {
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: .35rem .7rem; font-size: .82rem; color: var(--muted);
}
.calc-result {
  margin-top: 1rem; padding: 1rem; background: var(--accent-soft); border-radius: 10px;
}
.calc-result strong { font-size: 1.35rem; letter-spacing: -.02em; }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .75rem; margin: 1rem 0; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: .8rem; }
.stat .k { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.stat .v { font-size: 1.25rem; font-weight: 700; letter-spacing: -.02em; margin-top: .15rem; }