.qp{--canvas: #faf9f5;--surface: #ffffff;--surface-soft: #f5f0e8;--ink: #141413;--body: #3d3d3a;--muted: #5a5852;--muted-soft: #6f6c65;--hairline: #e6dfd8;--hairline-soft: #efeae2;--edge: #8e8b82;--accent: #1f5e4a;--accent-soft: #e8f0ec;--lock: #6f6c65;--on-ink: #faf9f5;--r-card: 16px;--r-btn: 10px;--r-pill: 999px;--ease-out: cubic-bezier(.23, 1, .32, 1);--ease-io: cubic-bezier(.77, 0, .175, 1);--font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;--maxw: 1180px;background:var(--canvas);color:var(--body);font-family:var(--font-sans);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip}@media(prefers-color-scheme:dark){.qp{--canvas: #141413;--surface: #1c1b19;--surface-soft: #232220;--ink: #faf9f5;--body: #d6d3cc;--muted: #b3b0a8;--muted-soft: #8d8a81;--hairline: #2e2c29;--hairline-soft: 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var(--ease-out)}.qp .linklike:active{transform:scale(.97)}.qp .hero{position:relative;padding:clamp(36px,6vh,64px) 0 clamp(48px,8vh,88px);overflow:clip}.qp .glow{position:absolute;z-index:0;pointer-events:none;top:6%;right:-6%;width:min(760px,72vw);height:520px;background:radial-gradient(closest-side,color-mix(in srgb,var(--accent) 12%,transparent),transparent 72%);filter:blur(52px);opacity:.16}.qp .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr);gap:36px;align-items:start}@media(min-width:940px){.qp .hero-grid{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:52px;align-items:start}.qp .hero-copy{position:sticky;top:96px;align-self:start}.qp .hero:has(.out) .hero-copy{position:static}}.qp .hero h1 .l2{color:var(--muted)}.qp .hero h1 .nowrap{white-space:nowrap}.qp .hero .sub{margin-top:20px;max-width:36ch;color:var(--muted);font-size:16.5px;line-height:1.55}.qp 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var(--edge);border-radius:8px;padding:7px 12px;transition:transform .14s var(--ease-out),border-color .16s var(--ease-out),background-color .16s var(--ease-out),color .16s var(--ease-out)}.qp .opt:active:not(:disabled){transform:scale(.97)}.qp .opt:disabled{cursor:default}.qp .opt.right{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:600}.qp .opt.wrong{color:var(--muted-soft);border-color:var(--hairline);text-decoration:line-through}.qp .src{margin:12px 0 0 32px;font-size:13px}.qp .src summary{color:var(--accent);cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:6px}.qp .src summary::-webkit-details-marker{display:none}.qp .src summary:after{content:"";width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);transition:transform .18s var(--ease-out)}.qp .src[open] summary:after{transform:rotate(-135deg)}.qp .src-body{margin-top:9px;padding:10px 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details:last-of-type{border-bottom:1px solid var(--hairline)}.qp .faq summary{cursor:pointer;list-style:none;color:var(--ink);font-size:17px;font-weight:550;letter-spacing:-.1px;display:flex;justify-content:space-between;align-items:center;gap:16px}.qp .faq summary::-webkit-details-marker{display:none}.qp .faq summary:after{content:"+";font-family:var(--font-mono);color:var(--muted);font-size:18px;transition:transform .2s var(--ease-out)}.qp .faq details[open] summary:after{transform:rotate(45deg)}.qp .faq p{margin-top:11px;max-width:68ch;color:var(--body)}.qp .final{text-align:center;padding-bottom:clamp(72px,10vh,120px)}.qp .final .display-md{margin-bottom:16px}.qp .final p{max-width:46ch;margin:0 auto 26px}.qp .lede{padding:clamp(48px,8vh,88px) 0 0}.qp .pro-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;align-items:start}@media(min-width:880px){.qp .pro-grid{grid-template-columns:1fr 1fr;gap:64px}}.qp .panel{border:1px solid 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.linklike:hover{text-decoration-color:var(--accent)}.qp .tab:hover:not(.tab-locked){color:var(--ink);background:var(--surface-soft)}.qp .opt:hover:not(:disabled){border-color:var(--ink)}}@media(prefers-reduced-motion:reduce){.qp *,.qp *:before,.qp *:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}.qp .rev,.qp.js .rev{opacity:1;transform:none}.qp .q{opacity:1;transform:none;animation:none}}
