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.site-header__language-check{opacity:1}@media (max-width:47.999rem){.site-header__panel{overscroll-behavior:contain;max-block-size:min(78dvh,34rem);inline-size:auto;inset-block-start:calc(var(--ph-header-height) + var(--ph-space-2));inset-inline-start:max(var(--ph-shell-gutter), env(safe-area-inset-left));inset-inline-end:max(var(--ph-shell-gutter), env(safe-area-inset-right))}.site-header__panel-content{gap:var(--ph-space-3);padding:var(--ph-space-3)}.site-header-panel-head--language{display:flex}.site-header__language-panel{inline-size:auto}.site-header__language-menu{gap:var(--ph-space-2)}.site-header__language-option{min-block-size:3rem;padding:var(--ph-space-3) var(--ph-space-4);border:var(--ph-border-hairline) solid var(--ph-color-border-muted);border-radius:var(--ph-radius-md);background:color-mix(in oklch, var(--ph-color-canvas-default) 94%, var(--ph-surface-accent))}.site-header__language-option[aria-checked=true]{border-color:color-mix(in oklch, var(--ph-color-accent-fg) 28%, 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var(--ph-color-border-muted));display:flex}.site-side-nav__close{border:var(--ph-border-hairline) solid color-mix(in oklch, var(--ph-color-accent-fg) 20%, var(--ph-color-border-default));border-radius:var(--ph-radius-pill);background:color-mix(in oklch, var(--ph-color-canvas-default) 88%, var(--ph-surface-accent));block-size:2.5rem;inline-size:2.5rem;color:var(--ph-color-fg-default);transition:border-color var(--ph-duration-default) var(--ph-easing-default), background-color var(--ph-duration-default) var(--ph-easing-default), color var(--ph-duration-default) var(--ph-easing-default), transform var(--ph-duration-default) var(--ph-easing-default);justify-content:center;align-items:center;display:inline-flex}.site-side-nav__close-icon,.site-side-nav__link-icon{pointer-events:none}.site-side-nav__close:hover{color:var(--ph-color-accent-fg);border-color:color-mix(in oklch, var(--ph-color-accent-fg) 36%, var(--ph-color-border-default));background:color-mix(in oklch, 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var(--ph-color-border-muted);margin-block-end:var(--ph-space-5);padding-block-end:var(--ph-space-5);display:grid}.pagehead-eyebrow{align-items:center;gap:var(--ph-space-3);color:var(--ph-color-fg-subtle);font-family:var(--ph-font-mono);font-size:var(--ph-text-xs);letter-spacing:.06em;text-transform:uppercase;margin:0;font-weight:600;display:inline-flex}.pagehead-lead{color:var(--ph-color-fg-muted);font-size:var(--ph-text-base);line-height:var(--ph-lh-relaxed);max-inline-size:50ch;margin:0}.feature-layout{gap:var(--ph-space-5);display:grid}.feature-main,.feature-rail{min-inline-size:0}.feature-main{align-content:start;gap:var(--ph-space-5);display:grid}.feature-rail-sticky{gap:var(--ph-space-5);display:grid}.feature-card{gap:var(--ph-space-3);padding:var(--ph-space-4) 0 0;border:0;border-block-start:var(--ph-border-hairline) solid var(--ph-color-border-muted);background:0 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