:root{--ink:#182b36;--muted:#506370;--blue:#145cdb;--navy:#102f46;--line:#dce4e9;--paper:#f6f8fa;--white:#fff;--lime:#d8f77a;--radius:16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}a{color:var(--blue);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #145cdb;outline-offset:4px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2rem,4.5vw,3.6rem);line-height:1.08;letter-spacing:-.045em;margin-bottom:18px}h2{font-size:1.6rem;line-height:1.25;letter-spacing:-.025em}h3{font-size:1.1rem;line-height:1.35}p{margin-bottom:18px}.wrap{width:min(1180px,calc(100% - 48px));margin:auto}.skip{position:absolute;top:-80px;left:16px;background:white;padding:12px;z-index:5}.skip:focus{top:8px}.site-header{background:white;border-bottom:1px solid var(--line)}.header-row{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:11px;color:var(--navy);font-weight:750;font-size:1.35rem;letter-spacing:-.045em;text-decoration:none}.brandmark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;color:var(--lime);background:var(--navy);font-size:22px;letter-spacing:-4px;padding-right:4px}.topnav{display:flex;gap:28px;align-items:center}.topnav a{text-decoration:none;color:var(--muted);font-size:14px;font-weight:600;padding:10px 0}.topnav a:hover{color:var(--blue)}.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:750;color:var(--blue);margin-bottom:14px}.intro{padding:46px 0 28px;display:flex;align-items:end;justify-content:space-between;gap:24px}.intro p{max-width:580px;color:var(--muted);font-size:18px;margin-bottom:0}.edition{font-size:13px;color:var(--muted);white-space:nowrap}.home-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;margin:0 0 40px}.quick{padding:28px;background:var(--navy);border-radius:var(--radius);color:white}.quick .eyebrow{color:var(--lime)}.quick h2{font-size:1.85rem;margin-bottom:8px}.quick p{color:#c1d0db;font-size:15px}.quick form{display:grid;grid-template-columns:1fr 1fr;gap:16px}.quick label{font-size:14px;display:block}.quick input,.quick select{width:100%;min-height:48px;margin-top:6px;border:1px solid #5a7385;border-radius:8px;background:#244257;color:white;padding:8px 12px}.quick .quick-result{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;border-top:1px solid #466072;padding-top:18px}.quick output{font-size:2rem;font-weight:700;letter-spacing:-.035em}.quick .button{background:var(--lime);color:var(--navy)}.popular{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:26px}.popular h2{font-size:1.1rem}.popular a{display:flex;align-items:center;gap:14px;padding:14px 0;border-top:1px solid var(--line);text-decoration:none;color:var(--ink)}.popular a b{font-size:16px}.popular a small{display:block;color:var(--muted);font-size:13px}.popular a>span:first-child{color:#577588;font-size:13px;font-variant-numeric:tabular-nums}.popular .arrow{margin-left:auto;color:var(--blue)}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}.section-heading h2{margin:0}.search{max-width:340px;min-height:48px;padding:12px 16px;border:1px solid var(--line);border-radius:9px;background:white;width:100%}.filters{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 25px}.filter{border:1px solid var(--line);border-radius:30px;padding:10px 16px;min-height:44px;background:white;font-size:14px;color:var(--muted)}.filter[aria-pressed=true]{background:var(--navy);color:white;border-color:var(--navy)}.tools-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool-card{position:relative;display:block;text-decoration:none;color:var(--ink);border:1px solid var(--line);background:white;border-radius:12px;padding:22px;transition:border-color .15s}.tool-card:hover{border-color:var(--blue)}.tool-card .tag{font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}.tool-card h3{margin:18px 20px 8px 0}.tool-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.6}.tool-card .arrow{position:absolute;right:22px;top:23px;color:var(--blue)}.principles{margin:48px 0;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.principles h3{margin-bottom:8px}.principles p{font-size:14px;color:var(--muted);margin:0}.breadcrumb{font-size:13px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap;margin:28px 0 20px}.breadcrumb a{color:var(--muted)}.calc-heading h1{font-size:clamp(2rem,4vw,2.8rem);margin-bottom:12px}.calc-heading p{color:var(--muted);max-width:760px;margin-bottom:26px}.calc-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:24px;align-items:start}.input-panel{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:28px}.panel-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px;flex-wrap:wrap}.panel-top h2{font-size:1.05rem;margin:0}.units{display:flex;background:var(--paper);border-radius:8px;padding:3px}.units button{border:0;background:transparent;border-radius:6px;min-height:40px;padding:8px 12px;color:var(--muted);font-size:14px}.units button[aria-pressed=true]{background:var(--navy);color:white}.fields{display:grid;grid-template-columns:1fr 1fr;gap:20px 16px}.field label{font-size:14px;font-weight:650;display:block;margin-bottom:7px}.input-wrap{position:relative}.field input,.field select,.currency{width:100%;background:#fff;border:1px solid #a6b6c1;border-radius:8px;padding:10px 56px 10px 12px;min-height:48px;color:var(--ink);font-size:16px}.field select{padding-right:8px}.field input[aria-invalid=true]{border:2px solid #ba2738}.field .unit{position:absolute;right:12px;top:12px;color:var(--muted);font-size:14px;pointer-events:none}.field small{display:block;margin-top:6px;color:var(--muted);font-size:12px;line-height:1.5}.field .error{color:#ae1831}.form-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button{border:0;background:var(--blue);color:white;border-radius:8px;min-height:46px;padding:11px 20px;font-size:14px;font-weight:650;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.button.secondary{border:1px solid var(--line);background:white;color:var(--ink)}.currency-row{margin-top:22px;display:flex;align-items:center;gap:12px;color:var(--muted);font-size:14px}.currency{width:110px;padding:7px 10px;min-height:42px}.result-panel{background:var(--navy);color:white;border-radius:var(--radius);padding:28px}.result-panel .eyebrow{color:var(--lime);margin-bottom:8px}.result-main{padding-bottom:20px;border-bottom:1px solid #466072}.result-label{color:#c1d0db;font-size:14px}.result-number{font-size:clamp(2.3rem,5vw,3.35rem);line-height:1.2;font-weight:720;letter-spacing:-.045em;overflow-wrap:anywhere;margin:8px 0}.result-number span{font-size:1.1rem;letter-spacing:0;color:#c1d0db;font-weight:500}.result-sub{color:#c1d0db;font-size:14px}.result-list{margin:14px 0 0}.result-list>div{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:9px 0}.result-list dt{font-size:14px;color:#c1d0db}.result-list dd{margin:0;font-size:16px;font-weight:600;text-align:right}.result-note{font-size:13px;color:#c1d0db;margin:18px 0 0;border-top:1px solid #466072;padding-top:16px}.result-error{padding:20px 0;color:#ffe2e7}.result-actions{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}.result-actions button{background:#244257;color:white;border:1px solid #5a7385;border-radius:7px;min-height:42px;padding:8px 15px;font-size:14px}.visual{background:#edf2f6;border:1px solid var(--line);border-radius:12px;margin-top:16px;padding:16px}.visual svg{width:100%;height:120px;display:block}.visual figcaption{font-size:12px;color:var(--muted);text-align:center}.content-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(220px,.75fr);gap:64px;margin:44px 0}.article h2{font-size:1.35rem;margin:32px 0 16px}.article h2:first-child{margin-top:0}.article p,.article li{color:#425662}.formula{padding:20px;border-left:3px solid var(--blue);background:#eaf0f7;font:15px/1.7 ui-monospace,SFMono-Regular,monospace;color:var(--navy);overflow-wrap:anywhere}.notice{border-left:3px solid #8498a5;padding:4px 0 4px 18px;font-size:14px;color:var(--muted)}.related h2{font-size:1.05rem}.related a{display:block;padding:15px 0;border-bottom:1px solid var(--line);text-decoration:none;font-size:15px}.related .mini-note{margin-top:28px;font-size:13px;color:var(--muted)}details{border-bottom:1px solid var(--line);padding:15px 0}summary{cursor:pointer;font-weight:600;min-height:32px}details p{margin:14px 0 0}.sources{font-size:14px}.prose{max-width:800px;margin:35px auto 65px}.prose h1{font-size:2.5rem}.prose h2{margin-top:32px;font-size:1.4rem}.prose li{margin:10px 0}.site-footer{border-top:1px solid var(--line);padding:32px 0;background:white;margin-top:48px}.footer-row{display:flex;justify-content:space-between;gap:24px}.footer-links{display:flex;flex-wrap:wrap;gap:10px 20px}.footer-links a{font-size:13px;color:var(--muted)}.footer-note{font-size:12px;color:var(--muted);margin:20px 0 0}.ad-slot{display:none}.ad-slot[data-active=true]{display:block;min-height:250px;margin:24px 0;border:1px solid var(--line)}[hidden]{display:none!important}.status{font-size:14px;min-height:24px}.report{width:100%;min-height:150px;border:1px solid var(--line);padding:14px;border-radius:8px}.empty{padding:30px;border:1px dashed var(--line);border-radius:10px}.search-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:800px){.home-layout{grid-template-columns:1fr 1fr}.tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.calc-grid{grid-template-columns:1fr}.result-panel{padding:24px}.content-grid{gap:28px}.intro .edition{display:none}.calc-heading h1{font-size:2.2rem}}@media(max-width:600px){.wrap{width:calc(100% - 32px)}.header-row{min-height:70px;gap:12px}.brand{font-size:1.15rem;gap:8px}.brandmark{width:29px;height:29px}.topnav{gap:12px}.topnav a{font-size:13px}.topnav a:last-child{display:none}.intro{padding:30px 0 24px}.intro p{font-size:16px}.home-layout{grid-template-columns:1fr;gap:16px;margin-bottom:30px}.quick,.popular,.input-panel{padding:20px}.quick h2{font-size:1.55rem}.quick output{font-size:1.55rem}.quick .button{padding:10px 12px}.section-heading{align-items:stretch;flex-direction:column}.section-heading h2{font-size:1.4rem}.search{max-width:none}.tools-grid{grid-template-columns:1fr}.tool-card{padding:20px}.tool-card h3{margin-top:10px}.principles{grid-template-columns:1fr;gap:22px;margin:32px 0}.content-grid{grid-template-columns:1fr;margin-top:32px}.fields{gap:18px 12px}.field label{min-height:42px;display:flex;align-items:end}.field input{padding-right:43px}.field .unit{right:9px;font-size:12px;top:14px}.footer-row{flex-direction:column}.calc-heading p{font-size:15px}.calc-heading h1{font-size:2rem}.result-number{font-size:2.65rem}.filters{gap:7px}.filter{padding:8px 12px;font-size:13px}.breadcrumb{font-size:12px}}@media(max-width:360px){.fields{grid-template-columns:1fr}.field label{min-height:0}.quick form{grid-template-columns:1fr}.quick .quick-result{flex-wrap:wrap;gap:14px}.brand{font-size:1rem}.topnav{gap:8px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{.site-header,.site-footer,.breadcrumb,.related,.result-actions,.form-actions,.filters,.ad-slot{display:none}.wrap{width:100%}.calc-grid,.content-grid{display:block}.result-panel{background:white;color:black;border:1px solid #777;margin-top:20px}.result-panel *{color:black!important}.visual{display:none}.input-panel{break-inside:avoid}.article{font-size:12px}}

.input-wrap.long-unit .unit{position:static;display:block;text-align:right;margin-top:3px;font-size:12px;line-height:1.4}