:root {
  --bg: #f6f5f2;
  --panel: #ffffff;
  --panel-2: #efede7;
  --text: #1d1c1a;
  --muted: #625e57;
  --line: #e0ddd5;
  --accent: #2f5d50;
  --accent-ink: #ffffff;
  --accent-soft: #e3eee9;
  --code-bg: #f1efe9;
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #151615;
    --panel: #1d1f1e;
    --panel-2: #262928;
    --text: #e9e7e2;
    --muted: #a5a199;
    --line: #333735;
    --accent: #7fbfa8;
    --accent-ink: #0e1a16;
    --accent-soft: #22322c;
    --code-bg: #121413;
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bg: #151615;
  --panel: #1d1f1e;
  --panel-2: #262928;
  --text: #e9e7e2;
  --muted: #a5a199;
  --line: #333735;
  --accent: #7fbfa8;
  --accent-ink: #0e1a16;
  --accent-soft: #22322c;
  --code-bg: #121413;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 var(--sans); overflow-x: hidden; }
a { color: var(--accent); overflow-wrap: anywhere; }
img { max-width: 100%; height: auto; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }
header.site { border-bottom: 1px solid var(--line); background: var(--panel); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); text-decoration: none; }
.logo img { width: 28px; height: 28px; }
nav.top { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
nav.top a { color: var(--muted); text-decoration: none; }
nav.top a:hover { color: var(--text); }
.btn { display: inline-block; padding: 11px 20px; border-radius: 10px; font-weight: 650; text-decoration: none; border: 1px solid var(--line); color: var(--text); background: var(--panel); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.hero { padding: 56px 0 32px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.12; margin: 0 0 16px; letter-spacing: -0.01em; }
.hero p.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); margin: 0 0 24px; max-width: 680px; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.cta .note { color: var(--muted); font-size: 14px; }
.shot { margin: 32px 0 8px; border-radius: var(--radius); border: 1px solid var(--line); overflow: hidden; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08); }
.shot img { display: block; width: 100%; }
section { padding: 36px 0; }
section h2 { font-size: clamp(24px, 3.4vw, 30px); line-height: 1.2; margin: 0 0 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.privacy-box { background: var(--accent-soft); border-radius: var(--radius); padding: 20px 22px; }
.privacy-box ul { margin: 8px 0 0; padding-left: 20px; }
table { border-collapse: collapse; width: 100%; font-size: 15.5px; background: var(--panel); border-radius: 10px; overflow: hidden; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: var(--panel-2); }
.table-wrap { overflow-x: auto; }
ol.steps li, ul.plain li { margin: 6px 0; }
details { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin: 8px 0; }
summary { cursor: pointer; font-weight: 600; }
code { font-family: var(--mono); font-size: 0.88em; background: var(--code-bg); padding: 1px 5px; border-radius: 5px; overflow-wrap: anywhere; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow-x: auto; font-size: 14px; line-height: 1.5; }
pre code { background: none; padding: 0; overflow-wrap: normal; }
article { padding: 40px 0 24px; }
article h1 { font-size: clamp(28px, 4.4vw, 40px); line-height: 1.15; margin: 0 0 10px; }
article .byline { color: var(--muted); font-size: 14.5px; margin-bottom: 24px; }
article h2 { font-size: 24px; margin: 32px 0 10px; }
article h3 { font-size: 19px; margin: 24px 0 8px; }
.callout { border-left: 4px solid var(--accent); background: var(--panel); padding: 12px 16px; border-radius: 0 10px 10px 0; margin: 18px 0; }
.muted { color: var(--muted); }
footer.site { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 14px; margin-top: 24px; }
footer.site a { color: var(--muted); }
@media (max-width: 560px) {
  body { font-size: 16px; }
  .hero { padding: 36px 0 20px; }
  nav.top { gap: 12px; }
}