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solid var(--shf-line);background:var(--shf-surface);position:relative}.shf-stack-img,.shf-stack-blank{aspect-ratio:3/2;border-bottom:6px solid var(--shf-ink);background:var(--shf-line);object-fit:cover;width:100%}.shf-stack-body{padding:0 1rem 1rem}.shf-stack-tag{border:1px solid var(--shf-ink);background:var(--shf-bg);font-family:var(--shf-mono);font-size:var(--shf-step-n2);letter-spacing:.08em;text-transform:uppercase;margin:0 0 -.3rem;padding:.2rem .6rem;font-weight:600;display:inline-block;position:relative;top:-.9rem}.shf-stack-title{font-family:var(--shf-font-display);font-size:var(--shf-step-2);font-weight:700;line-height:var(--shf-lh-head);margin:0 0 .3rem}.shf-stack-text{color:var(--shf-muted);font-size:var(--shf-step-n1);margin:0}.shf-stack-count{font-family:var(--shf-mono);font-size:var(--shf-step-n2);font-variant-numeric:tabular-nums;margin:.6rem 0 0}.shf-rules{counter-reset:shf-rule;gap:0 2.5rem;margin:0;padding:0;list-style:none;display:grid}.shf-rule{border-top:1px solid 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var(--shf-on-accent);background:var(--shf-accent);max-width:36rem;padding:1.25rem}.shf-bench-tag{font-family:var(--shf-mono);font-size:var(--shf-step-n2);letter-spacing:.1em;text-transform:uppercase;margin:0 0 .4rem;font-weight:600}.shf-bench-title{font-family:var(--shf-font-display);font-size:var(--shf-step-4);font-weight:700;line-height:var(--shf-lh-head);margin:0 0 .5rem}.shf-bench-text{margin:0 0 1.1rem}.shf-bench-actions{margin:0}.shf-bench a:focus-visible{outline-color:var(--shf-on-accent)}.shf-cat{border-top:var(--shf-rule);margin:0;padding:0;list-style:none}.shf-cat-row{border-bottom:1px solid var(--shf-line);gap:.4rem;padding:.9rem 0;display:grid;position:relative}.shf-callno,.shf-cat-meta{margin:0}.shf-callno-code{border:1px solid var(--shf-ink);background:var(--shf-surface);font-family:var(--shf-mono);font-size:var(--shf-step-n2);font-variant-numeric:tabular-nums;letter-spacing:.06em;white-space:nowrap;padding:.1rem .45rem;font-weight:600;display:inline-block}.shf-cat-title{font-family:var(--shf-font-display);font-size:var(--shf-step-1);font-weight:600;line-height:var(--shf-lh-head);margin:0}.shf-cat-sum{color:var(--shf-muted);font-size:var(--shf-step-n1);margin:.2rem 0 0}.shf-cat-meta{color:var(--shf-muted);font-size:var(--shf-step-n2);font-variant-numeric:tabular-nums;flex-wrap:wrap;gap:0 .9rem;display:flex}.shf-cat-tool{border-left:4px solid var(--shf-accent);background:var(--shf-surface);padding-left:.9rem}.shf-cat-tool .shf-callno-code{border-color:var(--shf-accent);background:var(--shf-accent);color:var(--shf-on-accent)}@media (width>=40rem){.shf-cat-row{grid-template-columns:6rem minmax(0,1fr) 9.5rem;align-items:start;gap:0 1.25rem}.shf-cat-meta{flex-direction:column;gap:.1rem;padding-top:.3rem}}.shf-key{border:1px solid var(--shf-line);background:var(--shf-surface);margin:1.5rem 0 1.75rem;padding:.75rem 1rem}.shf-key-head{color:var(--shf-muted);font-size:var(--shf-step-n2);letter-spacing:.1em;text-transform:uppercase;margin:0 0 .5rem;font-weight:600}.shf-key-list{font-size:var(--shf-step-n1);flex-wrap:wrap;gap:.5rem 1.5rem;margin:0;padding:0;list-style:none;display:flex}.shf-rulenote{color:var(--shf-muted);margin:1.25rem 0 0}.shf-rulenote a{padding-block:.7rem;display:inline-block}.shf-kindline{color:var(--shf-muted);font-size:var(--shf-step-n1);flex-wrap:wrap;align-items:center;gap:.2rem .7rem;margin:0 0 .75rem;font-weight:600;display:flex}.shf-letters{margin:0 0 2rem}.shf-letters-list{flex-wrap:wrap;gap:.3rem;margin:0;padding:0;list-style:none;display:flex}.shf-letter{width:var(--shf-tap);height:var(--shf-tap);border:1px solid var(--shf-ink);background:var(--shf-surface);font-family:var(--shf-font-display);place-items:center;font-weight:700;display:grid}.shf a.shf-letter{color:var(--shf-ink);text-decoration:none}.shf a.shf-letter:hover{border-color:var(--shf-accent);background:var(--shf-accent);color:var(--shf-on-accent)}.shf-letter-off{border:1px dashed var(--shf-line);color:var(--shf-muted);background:0 0}.shf-text-terms h2{margin-top:calc(var(--shf-leading) * 1.1);font-size:var(--shf-step-2);padding-top:.5rem}.shf-text-terms h2:before{content:none}.shf-text-check ul{padding-left:0;list-style:none}.shf-text-check ul>li{padding-left:2rem;position:relative}.shf-text-check ul>li:before{content:"";border:2px solid var(--shf-ink);background:var(--shf-surface);width:1.05rem;height:1.05rem;position:absolute;top:.32em;left:0}.shf-scope{margin:calc(var(--shf-leading) * 1.75) 0 0;border:1px solid var(--shf-line);border-left:4px solid var(--shf-ink);background:var(--shf-surface);font-size:var(--shf-step-n1);padding:.85rem 1rem}.shf-page-wide>.shf-scope{max-width:var(--shf-measure)}.shf-scope strong{font-family:var(--shf-font-display)}.shf-topic-fig{margin:0 0 1.5rem}.shf-topic-img{aspect-ratio:16/9}.shf-topic-text{max-width:var(--shf-measure);margin-top:1.25rem}@media (width>=48rem){.shf-topic-img{aspect-ratio:3}}.shf-faq-home{border-top:var(--shf-rule);margin-top:1.25rem}.shf-desk-lede{max-width:var(--shf-measure)}.shf-desk-lede>:first-child{margin-top:0}.shf-desk>:is(p,ul,ol,section){max-width:var(--shf-measure)}.shf-desk h2:before{content:none}.shf-desk>[data-tool]{max-width:52rem}.shf [data-tool]{border:1px solid var(--shf-line);border-top:4px solid var(--shf-ink);background:var(--shf-surface);gap:1.25rem;padding:1.25rem;display:grid}.shf [data-tool]>:not(fieldset){grid-column:1/-1}.shf [data-tool] fieldset{border:1px solid var(--shf-line);align-content:start;gap:.9rem;min-width:0;margin:0;padding:.9rem 1rem 1.1rem;display:grid}.shf [data-tool] legend{font-family:var(--shf-font-display);font-size:var(--shf-step-1);padding:0 .4rem;font-weight:700}.shf [data-tool] label{font-size:var(--shf-step-n1);margin:0 0 .3rem;font-weight:600;display:block}.shf [data-tool] label:has(>:is(input,select)){gap:.3rem;margin:0;display:grid}.shf [data-tool] :is(input,select,textarea){width:100%;min-height:var(--shf-tap);border:1px solid var(--shf-muted);background:var(--shf-bg);color:var(--shf-ink);font-family:inherit;font-size:var(--shf-step-0);font-variant-numeric:tabular-nums;border-radius:0;margin:0;padding:.45rem .7rem;display:block}.shf [data-tool] :is(input,select,textarea):focus-visible{border-color:var(--shf-accent);outline:2px solid var(--shf-accent);outline-offset:2px}.shf [data-tool] :is(input[type=checkbox],input[type=radio]){width:1.35rem;min-height:1.35rem;accent-color:var(--shf-accent);display:inline-block}.shf [data-tool] label:has(>:is(input[type=checkbox],input[type=radio])){min-height:var(--shf-tap);align-items:center;gap:.6rem;display:flex}.shf [data-tool] :is(button,input[type=submit],input[type=reset]){width:auto;min-height:var(--shf-tap);border:2px solid var(--shf-accent);background:var(--shf-accent);color:var(--shf-on-accent);font-family:inherit;font-size:var(--shf-step-0);cursor:pointer;padding:.45rem 1.1rem;font-weight:600}.shf [data-tool]>:is(button,input[type=submit],input[type=reset]){justify-self:start}.shf [data-tool] dl{order:4;margin:0}.shf [data-tool] dl:has(>div){grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:.75rem;display:grid}.shf [data-tool] dl>div{border:1px solid var(--shf-line);border-top:3px solid var(--shf-accent);background:var(--shf-bg);min-width:0;padding:.85rem 1rem}.shf [data-tool] dt{color:var(--shf-muted);font-size:var(--shf-step-n1);margin:0 0 .3rem}.shf [data-tool] dd{margin:0}.shf [data-tool] dl:not(:has(>div)) dt{margin-top:.75rem}.shf [data-tool] :is(output,[data-tool-result]){color:var(--shf-ink);font-family:var(--shf-font-display);font-size:var(--shf-step-3);font-variant-numeric:tabular-nums lining-nums;overflow-wrap:anywhere;font-weight:700;line-height:1.25;display:block}.shf [data-tool]>:is(output,[data-tool-result]){border:1px solid var(--shf-line);border-top:3px solid var(--shf-accent);background:var(--shf-bg);font-size:var(--shf-step-5);order:4;padding:.85rem 1rem}.shf [data-tool] [data-tool-note]{border-left:3px solid var(--shf-line);max-width:64ch;color:var(--shf-muted);font-size:var(--shf-step-n1);order:5;margin:0;padding-left:1rem}@media (width>=40rem){.shf-slips,.shf-stacks,.shf-rules{grid-template-columns:repeat(2,minmax(0,1fr))}.shf [data-tool]{padding:1.75rem}.shf [data-tool]:has(>fieldset){grid-template-columns:repeat(auto-fit,minmax(16rem,1fr))}.shf-bench{padding:2rem}.shf-bench-plate{padding:1.75rem}}.shf a{transition:color 90ms,text-decoration-color 90ms}.shf a.shf-menu-link{transition:color 90ms,font-weight 90ms}.shf a.shf-menu-link:after{content:attr(data-label);pointer-events:none;user-select:none;visibility:hidden;height:0;font-weight:700;display:block;overflow:hidden}.shf ::selection{background:color-mix(in srgb, var(--shf-accent) var(--shf-select), var(--shf-bg));color:var(--shf-ink)}@media (prefers-reduced-motion:reduce){.shf *,.shf :before,.shf :after{transition:none!important}}