:root{--bg:#0f1216;--bg-raised:#171c22;--bg-inset:#0b0e12;--border:#262d36;--border-strong:#36404c;--text:#e6ebf1;--text-dim:#9aa7b6;--text-faint:#6b7887;--accent:#4da3ff;--accent-dim:#1d3a5c;--accent-soft:#16324f;--good:#35c46b;--warn:#e5b23c;--bad:#ef5f5f;--flat:#7aa7ff;--sharp:#ff9a5c;--radius:10px;--radius-sm:6px;--mono:ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;--toolbox-w:350px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5}#root{min-height:100vh}.app{max-width:1180px;margin:0 auto;padding:0 20px 80px}.masthead{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:baseline;gap:16px;padding:20px 0 14px;display:flex}.masthead h1{letter-spacing:-.01em;margin:0;font-size:19px;font-weight:650}.masthead 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