:root {
  --bg: #fbfaf8; --surface: #ffffff; --fg: #1c1a17; --muted: #6f6a60; --line: #e7e2d9;
  --accent: #b07d0a; --accent-fg: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #131210; --surface: #1c1a17; --fg: #f1eee7; --muted: #9a9284; --line: #2c2924; --accent: #d8a92c; --accent-fg: #17150f; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
.wrap { width: min(760px, 100% - 48px); margin-inline: auto; }
header { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(180%) blur(8px); z-index: 10; }
.bar { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.mark { font-size: 21px; font-weight: 700; letter-spacing: .16em; text-decoration: none; color: var(--fg); }
.mark span { color: var(--accent); }
.nav a { font-size: 14px; margin-left: 18px; text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--fg); }
main { padding: 48px 0 72px; }
h1 { font-size: clamp(28px, 4.5vw, 38px); letter-spacing: -.02em; margin: 0 0 8px; }
.meta { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
h2 { font-size: 20px; margin: 36px 0 12px; }
h3 { font-size: 16px; margin: 24px 0 8px; }
p, li { font-size: 16px; }
ul { padding-left: 22px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0 20px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.note { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; padding: 16px 18px; margin: 20px 0; font-size: 15px; }
.steps li { margin-bottom: 8px; }
footer { border-top: 1px solid var(--line); padding: 28px 0 48px; font-size: 13px; color: var(--muted); }
footer a { color: inherit; text-decoration: none; margin-right: 18px; }
footer a:hover { color: var(--fg); }
@media (max-width: 560px) { .wrap { width: calc(100% - 32px); } .nav a { margin-left: 12px; } }