.public-calculator,.public-category{max-width:1120px;padding:28px 22px;margin:auto}.breadcrumbs{display:flex;gap:10px;font-size:13px;margin:0 0 22px}.breadcrumbs a{color:var(--ink)}.public-title h1,.public-category h1{font-size:clamp(28px,4vw,48px);line-height:1.1;margin:8px 0 12px}.public-title p,.public-category>p{font-size:15px;line-height:1.55;max-width:70ch}.eyebrow{font:600 11px var(--ds-mono);letter-spacing:.08em}.public-tool{border:2px solid var(--ink);border-radius:18px;background:var(--surface);box-shadow:5px 5px 0 var(--ink);overflow:hidden;margin:25px 0}.public-tool-bar{background:var(--ink);color:var(--surface);font:600 11px var(--ds-mono);padding:14px 20px;display:flex;justify-content:space-between}.public-tool-bar span{opacity:.8}.public-work{display:grid;grid-template-columns:1.25fr 1fr}.public-work form{padding:24px;border-right:2px solid var(--ink)}.public-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 14px;margin-bottom:18px}.public-field>label{display:block;min-width:0;font-size:13px;font-weight:750}.public-fields small{font-size:12px;color:var(--muted);font-weight:500}.public-stepper{display:flex;align-items:center;border:2px solid var(--ink);border-radius:10px;overflow:hidden;margin-top:7px;min-width:0}.public-stepper input{min-width:0;width:100%;flex:1;border:0;min-height:48px;font-size:18px;font-weight:700;text-align:center;background:var(--surface);color:var(--ink);padding:6px 0}.public-stepper button{border:0;min-width:44px;min-height:48px;background:var(--surface);color:var(--ink);font-size:18px;cursor:pointer}.public-work .primary{padding:10px 20px}.public-answer{padding:24px;min-width:0;align-self:center}.public-answer .eyebrow{color:var(--rust)}#public-result strong{display:block;font-size:clamp(30px,4vw,50px);font-weight:900;letter-spacing:-.04em;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}#public-result>span{font-size:17px}#public-secondary p{font-size:14px;line-height:1.5;margin:10px 0}.public-answer .secondary{display:inline-flex;text-decoration:none;padding:10px 15px;margin-top:18px}#public-status{font-size:12px;line-height:1.5;color:var(--muted);margin-top:12px}#public-error{font-size:14px;color:var(--rust);line-height:1.5}.public-method{max-width:850px;margin-top:36px}.public-method h2,.public-related h2{font-size:25px;margin-bottom:12px}.public-method h3{font-size:18px;margin:22px 0 8px}.public-method p{font-size:15px;line-height:1.65}.public-method .formula{padding:15px;border:2px solid var(--ink);border-radius:10px;background:var(--surface);font-family:var(--ds-mono);font-size:13px;overflow-wrap:anywhere}.public-related{margin:32px 0}.public-related>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.public-related a,.catalog-subject-links a{padding:12px;border:1px solid var(--line);border-radius:8px;color:var(--ink);font-size:13px;text-decoration:none;background:var(--surface)}.public-footer{max-width:1120px;margin:25px auto;padding:20px 22px;display:flex;gap:22px;flex-wrap:wrap;font-size:13px;border-top:2px solid var(--ink)}.public-footer a{color:var(--ink)}.public-category>label{font-size:14px;font-weight:700;display:block;margin-top:25px}#category-search,#group-search{display:block;width:100%;min-height:48px;border:2px solid var(--ink);border-radius:12px;font-size:16px;padding:10px 14px;margin:8px 0 22px}.category-rows{border:2px solid var(--ink);border-radius:12px;overflow:hidden;background:var(--surface)}.category-rows article{padding:14px 18px;border-bottom:1px solid var(--line)}.category-rows article[hidden]{display:none}.category-rows h2{font-size:16px;margin:0 0 4px}.category-rows h2 a{color:var(--ink);text-decoration:none}.category-rows p{font-size:12px;margin:0}.catalog-subject-links{display:flex;gap:10px;flex-wrap:wrap;margin:30px 0}.catalog-subject-links a{color:var(--ink)}@media(max-width:650px){.public-calculator,.public-category{padding:20px 14px}.public-work{grid-template-columns:1fr}.public-work form{padding:18px;border-right:0;border-bottom:2px solid var(--ink)}.public-answer{padding:18px}.public-title h1,.public-category h1{font-size:30px}.public-fields{gap:14px 10px}.public-stepper input{font-size:16px}.public-related>div{grid-template-columns:1fr}.public-tool{box-shadow:3px 3px 0 var(--ink)}.public-tool-bar{padding:12px 16px}.public-tool-bar span{font-size:10px}.public-method{margin-top:28px}.public-footer{font-size:12px}}
.public-fields:has(>.public-field:only-child){grid-template-columns:1fr}.public-mobile-bar{display:none}.public-stepper:has(input[aria-invalid=true]){border-color:var(--rust)}@media(max-width:650px){body{padding-bottom:80px}.public-mobile-bar{position:fixed;bottom:0;left:0;right:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:var(--surface);border-top:2px solid var(--ink)}.public-mobile-bar>div{min-width:0}.public-mobile-bar span{font-size:11px;display:block}.public-mobile-bar strong{display:block;font-size:19px;overflow:hidden;text-overflow:ellipsis;max-width:62vw;white-space:nowrap}.public-mobile-bar a{min-height:44px;display:flex;align-items:center;font-size:13px;color:var(--ink);white-space:nowrap}.public-work form{scroll-margin-top:15px}}
@media(max-width:650px){body>header{padding:10px 14px;flex-wrap:wrap;gap:8px 12px}body>header .brand{font-size:19px}body>header nav{order:3;flex-basis:100%;justify-content:flex-start;flex-wrap:wrap;gap:16px}body>header nav a{font-size:13px;white-space:nowrap}body>header .retro-controls{order:2;margin-left:auto}.appearance-label{font-size:11px}}
/* Compact directory: one linked row per tool, grouped by purpose. */
.public-category{max-width:1180px;padding-top:22px}.public-category .breadcrumbs{margin-bottom:18px}.directory-heading{display:flex;align-items:center;justify-content:space-between;gap:28px}.directory-heading .eyebrow{font-size:10px;margin:0 0 5px;color:var(--rust)}.directory-heading h1{font-size:clamp(25px,3vw,34px);line-height:1.15;margin:0}.directory-search{width:min(370px,40%);flex-shrink:0}#category-search,#group-search{margin:0;min-height:46px;border-radius:10px;font-size:16px}.directory-toolbar{display:flex;align-items:center;gap:10px;margin:18px 0 22px;padding-bottom:14px;border-bottom:1px solid var(--line)}#category-count{margin:0;margin-inline-end:auto;font-size:12px;color:var(--muted)}.directory-filter select{font-size:12px;min-height:40px;padding:8px 28px 8px 10px;max-width:240px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink)}#toggle-groups{min-height:40px;padding:8px 10px;font-size:12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);cursor:pointer}.category-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;gap:24px}.category-group{min-width:0;scroll-margin-top:18px}.category-group>summary{display:flex;align-items:center;gap:8px;cursor:pointer;min-height:42px;list-style:none;padding:0 0 8px}.category-group>summary::-webkit-details-marker{display:none}.category-group>summary:after{content:'+';font-size:18px;color:var(--muted);width:16px;text-align:center}.category-group[open]>summary:after{content:'−'}.category-group h2{font-size:16px;letter-spacing:-.02em;margin:0}.group-count{font:11px var(--ds-mono);color:var(--muted);margin-inline-start:auto}.category-group .category-rows{list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.category-rows li{border-bottom:1px solid var(--line);min-width:0}.category-rows li:last-child{border-bottom:0}.category-rows .calculator-link{display:flex;align-items:center;gap:9px;min-height:46px;padding:9px 11px;text-decoration:none;color:var(--ink);font-size:13px;font-weight:650;line-height:1.3;overflow-wrap:anywhere}.calculator-link:hover{background:var(--mint)}.calculator-link:focus-visible{outline-offset:-3px!important}.directory-icon{width:18px;height:20px;color:var(--rust);flex-shrink:0}.directory-arrow{margin-inline-start:auto;color:var(--muted);font-size:14px}.directory-kind{font:9px var(--ds-mono);color:var(--muted)}.public-category[data-size=large] .category-group[open]{grid-column:1/-1}.public-category[data-size=large] .category-group[open] .category-rows{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}#category-empty{font-size:14px;padding:20px 0}@media(max-width:980px){.category-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.public-category[data-size=large] .category-group[open] .category-rows{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.public-category{padding:18px 14px}.public-category .breadcrumbs{margin-bottom:14px;font-size:12px}.directory-heading{display:block}.directory-heading h1{font-size:27px}.directory-search{display:block;width:100%;margin-top:16px}.directory-toolbar{flex-wrap:wrap;gap:8px;margin:12px 0 16px;padding-bottom:12px}#category-count{flex-basis:100%;margin-bottom:2px}.directory-filter{min-width:0;flex:1}.directory-filter select{min-height:44px;max-width:100%;width:100%;font-size:12px}#toggle-groups{min-height:44px}.category-groups{grid-template-columns:1fr;gap:16px}.category-group>summary{min-height:40px}.category-group h2{font-size:16px}.category-rows .calculator-link{min-height:46px;padding:10px 12px;font-size:14px;gap:10px}.public-category[data-size=large] .category-group[open] .category-rows{grid-template-columns:1fr}}
.public-category[data-group-selected=true] .category-group{grid-column:1/-1}.public-category[data-group-selected=true] .category-group .category-rows{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}@media(max-width:980px){.public-category[data-group-selected=true] .category-group .category-rows{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.public-category[data-group-selected=true] .category-group .category-rows{grid-template-columns:1fr}}

.public-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.public-actions .secondary{display:inline-flex;align-items:center;min-height:44px;padding:9px 12px;text-decoration:none;font-size:12px}
@media(max-width:620px){.public-actions .secondary{flex:1;justify-content:center}}

.public-field>select{display:block;min-width:0;width:100%;min-height:48px;font-size:18px;font-weight:700;padding:8px 10px;margin-top:7px;border:2px solid var(--ink);border-radius:10px;background:var(--surface);color:var(--ink)}
@media(max-width:650px){.public-field>select{font-size:16px}}

.public-field>input[type=text]{display:block;min-width:0;width:100%;min-height:48px;font-size:18px;font-weight:700;padding:8px 10px;margin-top:7px;border:2px solid var(--ink);border-radius:10px;background:var(--surface);color:var(--ink)}
@media(max-width:650px){.public-field>input[type=text]{font-size:16px}}

.group-directory>p{max-width:75ch;line-height:1.65}.group-tool-list{list-style:none;padding:0;display:grid;gap:12px}.group-tool-list li{border:1px solid var(--line);border-radius:12px;padding:12px 16px;background:var(--surface)}.group-tool-list a,.group-page-link a{display:inline-flex;align-items:center;min-height:44px;font-weight:750;color:var(--ink)}.group-tool-list p{margin:4px 0;line-height:1.55;color:var(--muted)}.group-page-link{margin:0;padding:0 14px}.breadcrumbs{flex-wrap:wrap}.breadcrumbs [aria-current=page]{color:var(--muted)}