:root{--max-width:680px;--radius:4px;--font-serif:"Iowan Old Style","Palatino Linotype","Palatino","Georgia","Times New Roman",serif;--font-sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--font-mono:ui-monospace,"SF Mono","Menlo","Consolas",monospace;--bg:#111;--fg:#e8e8e8;--muted:#9a9a9a;--border:#2a2a2a;--link:#e8e8e8;--link-hover:#b0b0b0;--accent:#e8e8e8;--accent-hover:#b0b0b0;--card-bg:#171717;--card-hover-bg:#1e1e1e}:root[data-theme=light]{--bg:#fff;--fg:#1a1a1a;--muted:#6b6b6b;--border:#e6e6e6;--link:#1a1a1a;--link-hover:#666;--accent:#1a1a1a;--accent-hover:#666;--card-bg:#fff;--card-hover-bg:#fafafa}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden}body{background-color:var(--bg);color:var(--fg);font-family:var(--font-serif);font-size:19px;line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}.nav{display:flex;align-items:center;justify-content:space-between;padding:2rem 2rem 0;max-width:var(--max-width);margin:0 auto}.nav-logo{font-size:1.05rem;font-weight:600;color:var(--fg)}.nav-about,.nav-logo{font-family:var(--font-serif)}.nav-about{font-size:1rem;color:var(--muted);transition:color .15s}.nav-about:hover{color:var(--fg)}.nav-right{display:flex;align-items:center;gap:1.25rem}.theme-toggle{position:relative;display:inline-flex;align-items:center;padding:2px;background:transparent;border:1px solid var(--border);border-radius:999px}.theme-toggle-slider{position:absolute;top:2px;bottom:2px;width:calc(50% - 2px);border-radius:999px;background:var(--fg);transition:transform .2s ease}.theme-toggle[data-active=light] .theme-toggle-slider{transform:translateX(0)}.theme-toggle[data-active=dark] .theme-toggle-slider{transform:translateX(100%)}.theme-toggle-option{position:relative;z-index:1;flex:1 0 auto;padding:.2rem .75rem;background:transparent;border:none;font-family:var(--font-serif);font-size:.85rem;line-height:1.4;color:var(--muted);cursor:pointer;transition:color .2s ease}.theme-toggle-option:hover{color:var(--fg)}.theme-toggle[data-active=dark] .theme-toggle-option[aria-checked=true],.theme-toggle[data-active=light] .theme-toggle-option[aria-checked=true]{color:var(--bg)}