:root {
  --bg: #fbfaf7; --surface: #ffffff; --ink: #1d1d1b; --muted: #5d5b55; --line: #e4e1d9;
  --accent: #1f5f4a; --accent-ink: #ffffff; --accent-soft: #e5f0eb; --warn-soft: #fff4dc; --bar: #2f7d63;
  --radius: 10px; --wrap: 1040px;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141513; --surface: #1c1e1b; --ink: #ecebe6; --muted: #a8a69f; --line: #31332f; --accent: #6cc4a1; --accent-ink: #0f1a15; --accent-soft: #1f2d27; --warn-soft: #2e2817; --bar: #6cc4a1; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.6; font-size: 17px; }
a { color: var(--accent); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 720px; }
header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.logo { font-weight: 700; text-decoration: none; color: var(--ink); letter-spacing: -0.01em; }
.logo small { font-weight: 400; color: var(--muted); margin-left: 6px; }
nav.site { display: flex; gap: 18px; flex-wrap: wrap; }
nav.site a { text-decoration: none; color: var(--muted); font-size: 15px; }
nav.site a:hover { color: var(--ink); }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; }
h1 { font-size: clamp(32px, 5vw, 50px); margin: 0 0 16px; }
h2 { font-size: clamp(24px, 3.4vw, 32px); margin: 0 0 14px; }
h3 { font-size: 20px; margin: 28px 0 8px; }
.hero { padding-top: 64px; padding-bottom: 48px; }
.hero p.lede { font-size: 20px; color: var(--muted); max-width: 680px; margin: 0 0 28px; }
.btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); padding: 12px 20px; border-radius: var(--radius); font-weight: 600; font-size: 16px; text-decoration: none; cursor: pointer; font-family: inherit; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn:disabled { opacity: 0.6; cursor: default; }
section { padding: 48px 0; border-top: 1px solid var(--line); }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin-top: 0; }
.price { font-size: 28px; font-weight: 700; margin: 4px 0 12px; }
.price small { font-size: 15px; font-weight: 400; color: var(--muted); }
ul.ticks { padding-left: 20px; margin: 0 0 20px; }
ul.ticks li { margin-bottom: 6px; }
.stat { font-size: 34px; font-weight: 700; color: var(--accent); line-height: 1.1; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
form .row { margin-bottom: 16px; }
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 15px; }
input[type=text], input[type=email], input[type=url], textarea { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font: inherit; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.check input { margin-top: 5px; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.notice { border-radius: 8px; padding: 14px 16px; margin-top: 16px; }
.notice.ok { background: var(--accent-soft); }
.notice.err { background: var(--warn-soft); }
dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); max-width: 460px; width: calc(100% - 32px); padding: 24px; }
dialog::backdrop { background: rgb(0 0 0 / 0.45); }
dialog .btns { margin-top: 16px; }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; }
footer.site { border-top: 1px solid var(--line); padding: 32px 0 48px; font-size: 14px; color: var(--muted); }
footer.site a { color: var(--muted); }
/* article */
article { padding: 40px 0 56px; }
article p, article li { font-size: 18px; }
article table { border-collapse: collapse; width: 100%; margin: 12px 0 24px; font-size: 15px; }
article th, article td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
article th { font-weight: 600; color: var(--muted); }
article td.num, article th.num { text-align: right; white-space: nowrap; }
.table-scroll { overflow-x: auto; }
.bar { display: inline-block; height: 8px; border-radius: 4px; background: var(--bar); vertical-align: middle; margin-left: 8px; }
.meta { color: var(--muted); font-size: 15px; }