:root{--bg: #f4f6f5;--surface: #ffffff;--text: #1b2423;--muted: #5f6b69;--line: #dce3e1;--accent: #14706a;--accent-soft: #dcefed;--good: #2f7a4b;--warn: #a86a12;--paper: #ffffff;--grid: #c9dedb;--ink: #1b2423;--outline: #dce3e1;color-scheme:light}@media (prefers-color-scheme: dark){:root{--bg: #121716;--surface: #1b2221;--text: #e6eeec;--muted: #97a5a2;--line: #2d3836;--accent: #3cc2b4;--accent-soft: #173331;--good: #6cc08d;--warn: #e0a54a;--paper: #1b2221;--grid: #2a4541;--ink: #e6eeec;--outline: #2d3836;color-scheme:dark}}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,PingFang SC,Hiragino Sans,Noto Sans CJK SC,sans-serif;line-height:1.5;-webkit-text-size-adjust:100%}a{color:var(--accent)}.page{max-width:560px;margin:0 auto;padding:20px 16px 48px}.muted{color:var(--muted)}.small{font-size:.875rem}.masthead h1{margin:8px 0 4px;font-size:1.75rem;letter-spacing:-.01em}.masthead p{margin:0 0 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