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var(--color-surface));--color-charcoal:var(--color-ink);--color-text:var(--color-ink);--color-border:var(--color-line);--color-border-strong:color-mix(in srgb, var(--color-line) 75%, var(--color-ink));--bg:var(--color-paper);--bg-alt:var(--color-mist);--surface:var(--color-surface);--surface-soft:var(--color-pearl-warm);--text:var(--color-text);--text-secondary:#374151;--muted:var(--color-muted);--muted-soft:#77808c;--line:var(--color-border);--line-strong:var(--color-border-strong);--accent:var(--color-blue);--accent-strong:var(--color-blue-deep);--accent-blue:var(--color-blue);--accent-amber:var(--color-product);--accent-green:var(--color-trust);--danger:#914e4b;--dark:var(--color-night);--dark-soft:var(--color-brand);--radius-xs:4px;--shadow-sm:0 10px 24px #0015310f;--shadow:0 18px 46px #0015311a;--shadow-lg:0 24px 62px #00153124;--signal-cyan:color-mix(in srgb, var(--color-signal) 72%, white);--signal-mist:color-mix(in srgb, var(--color-signal) 12%, var(--color-surface));--shadow-control:0 16px 30px #0015311f;--max-width:1240px;--max-content:1060px;--max-read:72ch;--gutter:40px;--gap-card:20px;--font-sans:var(--font-ui);--font-display:var(--font-editorial);font-family:var(--font-sans)}*{box-sizing:border-box}html{background:var(--color-pearl);scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--color-pearl);color:var(--color-text);margin:0;font-size:16px;line-height:1.6;overflow-x:clip}img,svg{max-width:100%}img{height:auto}a{color:inherit;text-decoration:none}a:hover{color:var(--color-blue-deep)}button,input,select,textarea{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid 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h2,.section--dark h3{color:#fff}.section--dark p{color:#c9d7e5}.page-header{border-bottom:1px solid var(--color-border);background:var(--color-surface);padding:72px 0 58px;position:relative;overflow:hidden}.page-header:after{border:1px solid var(--color-silver);content:"";pointer-events:none;border-radius:50%;width:280px;height:280px;position:absolute;bottom:-90px;right:7%}.page-header>.container{z-index:1;gap:16px;display:grid;position:relative}.page-header p{max-width:64ch;color:var(--color-muted);font-size:1.04rem}.page-header[data-format]{--format-signal:var(--color-cyan);--format-surface:var(--color-mist);background:var(--format-surface)}.page-header[data-format]:before{z-index:2;background:var(--format-signal);content:"";height:4px;position:absolute;top:0;left:0;right:0}.page-header[data-format] .eyebrow{color:var(--format-signal)}.page-header[data-format=guide]{--format-signal:var(--color-blue-deep);--format-surface:color-mix(in srgb, var(--color-blue) 5%, 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0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.product-evidence-note{color:var(--color-muted);font-size:.76rem;line-height:1.55}@media (width<=1199px){.container{width:min(var(--max-width), calc(100% - 48px))}.grid.three,.editorial-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=1024px){h1{font-size:3.75rem}h2{font-size:2.4rem}}@media (width<=767px){.container{width:min(var(--max-width), calc(100% - 32px))}.section{padding:44px 0}.section.compact{padding:34px 0}.page-header{padding:50px 0 42px}.page-header:after{width:250px;height:250px;bottom:-120px;right:-80px}.grid.two,.grid.three,.editorial-grid,.split{grid-template-columns:1fr;gap:16px}.section-heading,.section-head{flex-direction:column;align-items:start;gap:14px;margin-bottom:20px}.section-heading>a,.section-head>a{white-space:normal}h1{font-size:2.75rem}h2{font-size:2.05rem}}@media 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