:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--fg:#1a1a1a;--bg:#fff;--muted:#86868b;--accent:#007aff;--accent-light:#e5f1ff;--accent-hover:#0051d5;--border:#d2d2d7;--card-bg:#fff}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--fg:#f5f5f7;--bg:#1c1c1e;--muted:#86868b;--accent:#0a84ff;--accent-light:#2c2c2e;--accent-hover:#409cff;--border:#38383a;--card-bg:#1c1c1e}}*{box-sizing:border-box}html,body{height:100%}body{color:var(--fg);background:var(--bg);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Noto Sans,Apple Color Emoji,Segoe UI Emoji}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}a:visited{color:var(--accent)}.container{max-width:1100px;margin:0 auto;padding:16px 20px}header h1{margin:0 0 4px;font-size:28px;font-weight:700}.subtitle{color:var(--muted);margin:0;font-size:14px}.header-main{border-bottom:1px solid 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