:root{--background:#fffdf9;--text:#30271e;--accent:#a8491b;--accent-text:#fff;--border:#87796b;--radius:8px;--base-size:16px;color-scheme:light;font-family:'Segoe UI',Arial,sans-serif;color:var(--text);background:var(--background);font-size:var(--base-size)}*{box-sizing:border-box}body{margin:0;line-height:1.6}a{color:var(--accent);text-underline-offset:4px}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,summary,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button,select,input{min-height:48px}button{border-radius:var(--radius);border:1px solid var(--border);padding:10px 17px;background:transparent;line-height:1.35}input,select,textarea{max-width:100%;background:var(--background);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px}input{width:100%;font-size:1.125rem;min-width:0}input[aria-invalid=true]{border:2px solid var(--accent)}[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2rem,4vw,3.2rem);line-height:1.15;letter-spacing:-.045em;font-weight:650;margin-bottom:18px}h2{font-size:1.6rem;line-height:1.3;letter-spacing:-.02em}h3{font-size:1.15rem}p{margin-bottom:16px}header,main,footer{width:min(1120px,calc(100% - 64px));margin:auto}header{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:26px 0;border-bottom:1px solid color-mix(in srgb,var(--border) 40%,transparent)}.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:27px;letter-spacing:-1px;text-decoration:none;color:var(--text)}.brand img{width:33px;height:33px}nav{display:flex;gap:26px;flex-wrap:wrap}nav a{font-size:.95rem;text-decoration:none;color:var(--text)}nav a:hover{text-decoration:underline}main{padding:52px 0 76px}.breadcrumb{font-size:.85rem;margin-bottom:25px}.breadcrumb a{color:inherit}.lede{font-size:1.125rem;max-width:650px;color:color-mix(in srgb,var(--text) 83%,var(--background));margin-bottom:28px}.eyebrow{text-transform:uppercase;font-size:.75rem;letter-spacing:.13em;font-weight:700;color:var(--accent);margin-bottom:20px}.home-hero{padding:24px 0 32px;max-width:760px}.home-hero h1{font-size:clamp(2.4rem,5vw,4rem)}.home-hero .lede{font-size:1.2rem}.tool-list{margin:12px 0 60px;border-top:1px solid var(--border)}.tool-link{display:grid;grid-template-columns:64px 1fr 42px;align-items:center;gap:24px;padding:30px 6px;border-bottom:1px solid color-mix(in srgb,var(--border) 45%,transparent);text-decoration:none;color:var(--text)}.tool-link:hover{background:#a8491b08}.tool-symbol{font-size:28px;color:var(--accent);font-weight:600}.tool-link h2{margin:0 0 5px}.tool-link p{margin:0}.arrow{color:var(--accent);font-size:28px}.home-note{display:grid;grid-template-columns:1fr 1fr;gap:64px;max-width:950px}.text-link{font-weight:600}.calculator-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.95fr);gap:54px;align-items:start}.mode-controls{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0}.mode-button{font-size:.95rem;border-color:transparent;padding:10px 13px}.mode-button[aria-pressed=true]{border-color:var(--accent);background:var(--accent);color:var(--accent-text)}.fields{display:grid;gap:21px}.field label,#defaults label{display:block;font-weight:600;margin-bottom:7px}.input-unit{display:flex;align-items:center;border:1px solid var(--border);border-radius:var(--radius);background:var(--background)}.input-unit input{border:0;flex:1;width:100px;background:transparent;min-height:52px}.input-unit:focus-within{outline:2px solid var(--accent);outline-offset:2px}.input-unit .unit{padding:0 13px;white-space:nowrap;font-size:.95rem}.hint{font-size:.875rem;margin:6px 0 0;line-height:1.5}.muted{opacity:.83}.error,.form-summary{font-weight:600;font-size:.9rem;margin:6px 0 0}.error:empty,.form-summary:empty{display:none}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:27px}.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:600;min-width:155px}.text-button{border-color:transparent;text-decoration:underline;text-underline-offset:4px}.secondary{font-weight:600}.precision{display:flex;gap:12px;align-items:center;margin-top:23px;font-size:.875rem}.precision select{min-height:44px}.result{padding:28px 30px;border:1px solid var(--border);border-top:4px solid var(--accent);border-radius:var(--radius);min-width:0;background:color-mix(in srgb,var(--background) 96%,var(--text))}.empty-title{margin:18px 0 12px}.main-result{padding-bottom:22px}.result-label{display:block;font-size:.95rem}.answer{font-size:clamp(2rem,3.5vw,3.3rem);font-weight:650;line-height:1.2;letter-spacing:-.035em;margin-top:8px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.result-row{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:12px 0;border-top:1px solid color-mix(in srgb,var(--border) 40%,transparent);font-size:.95rem}.result-row .result-label{flex:1}.result-row strong{max-width:60%;text-align:right;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.formula{margin:20px 0 10px;font-size:.9rem;font-weight:600}.assumption{font-size:.875rem;margin:0}.status{font-size:.95rem;margin-top:18px}.stale .answer{opacity:.6}.stale>.eyebrow{font-weight:800}.copy-fallback{width:100%;min-height:220px;margin-top:16px}.conditions{margin-top:16px;font-size:.875rem}.conditions pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit}.area-diagram{height:140px;max-width:300px;margin:5px auto 0;width:80%;display:grid;place-items:center;border:2px solid var(--accent);background:repeating-linear-gradient(45deg,transparent,transparent 9px,color-mix(in srgb,var(--accent) 12%,transparent) 9px,color-mix(in srgb,var(--accent) 12%,transparent) 10px);transform:skewY(-4deg)}.area-diagram span{font-size:2.5rem;color:var(--accent);font-weight:600;transform:skewY(4deg)}.area-diagram+.hint{text-align:center;margin-top:-8px}.explanation{margin-top:64px;border-top:1px solid var(--border);padding-top:32px;max-width:760px}.explanation ul,.prose ul{padding-left:22px}.explanation li,.prose li{margin-bottom:10px}.explanation h3{margin-top:26px}.embed-link{margin-top:28px;display:inline-block;font-weight:600}.prose{max-width:760px}.prose h2{margin-top:32px}.prose code{overflow-wrap:anywhere}.config-grid{display:grid;grid-template-columns:340px minmax(0,1fr);gap:44px}.config-form{display:grid;gap:19px}.config-form label{display:grid;gap:6px}.config-form input[type=checkbox]{width:20px;min-height:24px}.check-label{display:flex!important;align-items:center;gap:9px!important}.config-form fieldset{border:0;border-top:1px solid var(--border);padding:20px 0 0;margin:0;min-width:0}.config-form legend{font-weight:650;padding-right:12px}.colors{display:grid;grid-template-columns:1fr 1fr;gap:14px}.colors input{width:100%;height:45px;padding:4px}.config-form #defaults{display:grid;gap:12px}#defaults input{font-size:1rem}.preview-pane{min-width:0}.preview-scroll{overflow:auto;border:1px dashed var(--border);padding:14px;background:#efeae3}.preview-wrap{margin:auto;width:100%}iframe{display:block;border:0;width:100%;background:var(--background)}#embed-code{display:block;width:100%;min-height:190px;font:13px/1.6 Consolas,monospace;margin-top:20px;resize:vertical}.preview-pane>h2{font-size:1.3rem}footer{border-top:1px solid color-mix(in srgb,var(--border) 45%,transparent);display:flex;justify-content:space-between;gap:24px;padding:25px 0 35px;font-size:.875rem}footer p{margin:0}footer nav{gap:18px}footer a{font-size:.875rem}.widget{padding:20px;background:var(--background)}.widget main{width:100%;padding:0}.widget h1{font-size:1.6rem;letter-spacing:-.025em}.widget .lede{font-size:1rem}.widget .calculator-grid{grid-template-columns:1fr;gap:24px}.widget .result{padding:20px}.widget .mode-controls{margin:20px 0}.widget .mode-button{font-size:.9rem}.widget .answer{font-size:2.4rem}.widget .fields{gap:16px}.widget .area-diagram{height:90px}.compact.widget{padding:14px}.compact.widget .fields{gap:10px}.compact.widget .result{padding:16px}.skip{position:absolute;left:-10000px}.skip:focus{left:10px;top:10px;z-index:5;background:var(--background);padding:10px}.noscript{padding:20px;border:2px solid var(--accent)}@media(max-width:800px){header,main,footer{width:calc(100% - 40px)}header{padding:20px 0;gap:15px}nav{gap:16px}header nav a{font-size:.875rem}.calculator-grid{gap:26px;grid-template-columns:1fr}.result{padding:24px}.config-grid{grid-template-columns:1fr;gap:35px}.home-note{gap:30px}.tool-link{gap:18px}.preview-scroll{padding:4px}.widget main{width:100%}}@media(max-width:480px){header,main,footer{width:calc(100% - 32px)}header{align-items:flex-start}.brand{font-size:24px}.brand img{width:29px;height:29px}header nav{gap:5px;flex-direction:column}main{padding:32px 0 48px}.tool-link{grid-template-columns:36px 1fr 20px;gap:12px;padding:24px 0}.tool-link h2{font-size:1.35rem}.tool-link p{font-size:.95rem}.home-note{grid-template-columns:1fr}.home-hero{padding-top:12px}.mode-controls{gap:4px}.mode-button{font-size:.875rem;padding:10px}.result-row{gap:10px}.result-row strong{max-width:55%}.actions{gap:5px}.actions .primary{width:100%}.answer{font-size:2.5rem}footer{flex-direction:column}.widget main{width:100%}.widget{padding:16px}.widget .answer{font-size:2rem}}@media print{header,footer,.breadcrumb,.mode-controls,.actions,.precision,.embed-link,.explanation,form,.status,.conditions{display:none!important}main{width:100%;padding:0}.calculator-grid{display:block}.result{border:1px solid #999;background:white;color:black}.result .conditions{display:block!important}.result .conditions>pre{display:block}.result .conditions>summary{display:none}h1{font-size:24pt}.answer{font-size:28pt}.result-row{break-inside:avoid}body{background:white}.lede{margin-bottom:20px}}
/* Typed fields shared by the new calculator modules. */
.input-unit textarea{width:100%;min-width:0;border:0;background:transparent;font-size:1.125rem;resize:vertical;min-height:110px;line-height:1.6}
.input-unit input[type=date]{min-width:0;width:100%;font-size:1.125rem}
#defaults textarea{width:100%;resize:vertical;min-height:110px}
#module-controls{display:grid;gap:19px}
.assumption,.formula,.hint{overflow-wrap:anywhere}
/* Hidden controls override layout utilities as well. */
[hidden]{display:none!important}

footer{flex-wrap:wrap;gap:20px}.fdev{font-size:.875rem}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;padding:0;list-style:none}.breadcrumb li+li:before{content:"/";margin-right:8px}.related ul{display:flex;flex-wrap:wrap;gap:12px 28px;padding-left:20px}.related{margin-top:40px}

.launch-notice{padding:14px 18px;margin-bottom:28px;border:1px solid var(--border);border-radius:8px;font-size:.9rem}