:root{--paper: #faf9f6;--page-bg: #e8e6e1;--hairline: #eceae4;--border: #e0ddd6;--ink: #1a1917;--muted: #8a857c;--muted-strong: #55514a;--accent: #4f46e5;--accent-tint: #eef0fe;--success: #15803d;--success-tint: #e8f5ec;--error: #dc2626;--error-tint: #fdecec;--font-head: "Space Grotesk", system-ui, sans-serif;--font-body: "Hanken Grotesk", system-ui, sans-serif;--font-mono: "Space Mono", ui-monospace, monospace;--nav-width: 232px;--radius: 10px;--radius-sm: 6px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--page-bg);color:var(--ink);font-family:var(--font-body);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;color:var(--ink);margin:0}a{color:var(--accent);text-decoration:none}button{font-family:var(--font-body);cursor:pointer}.mono{font-family:var(--font-mono)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius-sm);border:1px solid 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