:root{--hp-page:#f7f7f6;--hp-surface:#fff;--hp-subtle:#f2f3f3;--hp-ink:#252729;--hp-muted:#656b6e;--hp-line:#e0e2e2;--hp-salmon:#ed907e;--hp-salmon-hover:#e58370;--hp-on-salmon:#32231f;--hp-accent-text:#a94f3f;--hp-blue:#06f;--hp-author-surface:#f4eeeb;--hp-agent-surface:#f1eeec;--hp-author-ink:#8e4638;--hp-agent-ink:#985f52;--hp-author-edge:#d7a69a;--hp-revision:#8a6b11;--hp-revision-soft:#f6efd8;--hp-artifact-ink:#5d6265;--hp-mono:"SFMono-Regular", Consolas, "Liberation Mono", monospace;--hp-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;--hp-serif:Georgia, "Times New Roman", serif}
:root{--page-bg:var(--hp-page);--surface:var(--hp-surface);--surface-strong:var(--hp-surface);--surface-soft:var(--hp-subtle);--text:var(--hp-ink);--muted:var(--hp-muted);--line:var(--hp-line);--max-page:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{background:var(--hp-page);color:var(--hp-ink);font-family:var(--hp-sans);-webkit-font-smoothing:antialiased;margin:0}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled,input:disabled{cursor:not-allowed;opacity:.6}:focus-visible{outline:2px solid var(--hp-accent-text);outline-offset:4px}::selection{color:var(--hp-ink);background:#f4c1b6}.container{width:min(calc(100% - 64px), var(--max-page));margin:0 auto}.shell,.auth-shell{min-height:100vh}.topbar{justify-content:space-between;align-items:center;gap:24px;padding:30px 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