@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');
:root{color-scheme:dark;--bg:#0a101b;--surface:#111b29;--panel:#152131;--text:#ecf1f6;--muted:#a0adbf;--line:#2b394b;--gold:#f5c16c;--copper:#b87333;--green:#75d8b5}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.65 Inter,system-ui,sans-serif;background-image:radial-gradient(ellipse at 80% 10%,#b8733310,transparent 35%),linear-gradient(#8b9ab005 1px,transparent 1px),linear-gradient(90deg,#8b9ab005 1px,transparent 1px);background-size:auto,38px 38px,38px 38px}body.light{color-scheme:light;--bg:#f5f6f8;--surface:#fff;--panel:#edf0f5;--text:#142236;--muted:#526174;--line:#cbd3de;--gold:#855017;--green:#176b50}a{color:inherit;text-decoration:none}a:hover{color:var(--gold)}button,input,select{font:inherit}button,a,input,select,summary{outline-offset:5px} :focus-visible{outline:2px solid var(--gold);box-shadow:0 0 16px #f5c16c33}header{border-bottom:1px solid var(--line);background:var(--bg);position:relative;z-index:5}.nav{max-width:1320px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:20px 30px;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;line-height:1.1}.brand small{display:block;font-size:10px;letter-spacing:3px;font-weight:400;margin-top:7px}.chip{display:grid;place-items:center;width:39px;height:39px;border:1px solid var(--copper);border-radius:10px;color:var(--gold)}nav{display:flex;align-items:center;gap:26px;font-size:13px}main{max-width:1260px;margin:auto;padding:32px 24px 70px}.breadcrumbs{font-size:12px;color:var(--muted);margin:0 0 36px;display:flex;gap:12px}.eyebrow{font:11px 'JetBrains Mono',monospace;color:var(--gold);letter-spacing:2px;text-transform:uppercase}h1{font-size:clamp(32px,4vw,54px);line-height:1.13;letter-spacing:-2px;margin:16px 0 18px;max-width:900px}h2{font-size:25px;letter-spacing:-.7px;line-height:1.3}h3{font-size:18px}.intro{max-width:720px;color:var(--muted);font-size:16px}.hero{padding:4px 0 34px}.meta{display:flex;gap:22px;color:var(--muted);font-size:12px;margin-top:22px}.dot{color:var(--green)}.workspace{display:grid;grid-template-columns:390px 1fr;gap:22px;align-items:start}.card{background:linear-gradient(140deg,var(--surface),var(--bg));border:1px solid var(--line);border-radius:20px;overflow:hidden}.cardhead{padding:22px 24px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.cardhead h2{font-size:16px;margin:0}.tiny{font:10px 'JetBrains Mono',monospace;color:var(--muted);letter-spacing:1px}.inputs{padding:24px}.field{margin-bottom:24px}.field label{display:flex;justify-content:space-between;font-size:12px;font-weight:600;margin-bottom:10px}.number{display:flex;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:10px;overflow:hidden}.number input{width:100%;min-width:0;border:0;background:transparent;color:var(--text);padding:12px 4px;font-family:'JetBrains Mono',monospace;appearance:textfield}.number input::-webkit-inner-spin-button{appearance:none}.step{background:none;border:0;color:var(--muted);padding:10px 13px;cursor:pointer}.unit{padding:0 12px;font:11px 'JetBrains Mono',monospace;color:var(--gold);white-space:nowrap}input[type=range]{width:100%;height:3px;margin-top:14px;accent-color:var(--copper)}.seg{display:flex;padding:4px;gap:4px;background:var(--bg);border:1px solid var(--line);border-radius:10px}.seg button{flex:1;border:0;border-radius:7px;padding:9px 5px;font-size:12px;color:var(--muted);background:transparent;cursor:pointer;text-transform:capitalize;transition:.22s}.seg button[aria-pressed=true]{background:var(--panel);box-shadow:0 2px 6px #0003;color:var(--gold)}.btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:12px;padding:10px 15px;color:var(--text);background:var(--panel);cursor:pointer;font-size:12px;transition:transform .22s,box-shadow .22s}.btn.primary{background:linear-gradient(115deg,#b87333,#f5c16c);color:#17202b;font-weight:700;border-color:#f5c16c70;box-shadow:inset 0 1px #ffffff55,0 4px 20px #b8733322}.btn:hover{transform:translateY(-2px);box-shadow:0 5px 20px #b8733333}.btn.primary:after{content:'';position:absolute;inset:-50%;background:linear-gradient(110deg,transparent 45%,#fff5 50%,transparent 55%);transform:translateX(-100%)}.btn:hover:after{transform:translateX(100%);transition:.65s}.btn:active{transform:scale(.97);box-shadow:inset 0 2px 8px #0004}.btn.ghost{background:none;border-color:transparent}.btn.danger{color:#ffb2a8;border-color:#b75347}.btn.icon{padding:9px}.btn:disabled{opacity:.4;cursor:not-allowed}.btn[aria-busy=true]:before{content:'';width:12px;height:12px;border:2px solid;border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.results{padding:26px}.result-main{padding:24px;border:1px solid #b873334d;border-radius:14px;background:linear-gradient(120deg,#b8733315,transparent);position:relative}.result-main p{font-size:12px;margin:0;color:var(--muted)}.big{font:500 clamp(35px,5vw,58px)/1.4 'JetBrains Mono',monospace;color:var(--gold);letter-spacing:-2px}.status{font-size:10px;color:var(--green);background:#75d8b510;border:1px solid #75d8b530;border-radius:20px;padding:4px 9px;display:inline-block}.status.warning{color:var(--gold);border-color:#b8733350}.status.danger{color:#ff9a90}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:15px 0 22px}.metric{padding:15px 12px;background:var(--panel);border-radius:10px}.metric span{display:block;font-size:10px;color:var(--muted);margin-bottom:8px}.metric strong{font:500 17px 'JetBrains Mono',monospace}.diagram{background:var(--bg);border:1px solid var(--line);border-radius:12px;margin-top:16px;padding:18px}.diagram svg{width:100%;height:auto;max-height:230px}.diagram text{fill:var(--muted);font:11px monospace}.diagram rect,.diagram path{transition:all .22s}.actions{display:flex;flex-wrap:wrap;gap:8px;padding:0 26px 24px}.note{color:var(--muted);font-size:12px;border-left:2px solid var(--copper);padding-left:14px;margin-top:20px}.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.article{max-width:880px;margin:65px auto 25px;color:var(--muted)}.article h2,.article h3{color:var(--text)}.article a{color:var(--gold);text-decoration:underline}.article p{margin:18px 0}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;color:var(--text);font-weight:500}details p{color:var(--muted)}code{font-family:'JetBrains Mono',monospace;color:var(--gold)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.toolcard{padding:26px;display:flex;flex-direction:column;min-height:245px;transition:.22s}.toolcard:hover{border-color:var(--copper);transform:translateY(-3px)}.toolcard h2{font-size:20px;margin:20px 0 10px}.toolcard p{font-size:13px;color:var(--muted);margin:0 0 20px}.toolcard .arrow{margin-top:auto;color:var(--gold);font-size:12px}.toolno{font:11px monospace;color:var(--gold)}.section-label{display:flex;justify-content:space-between;align-items:center;margin:35px 0 18px}.section-label p{color:var(--muted);font-size:12px}.hubhero{display:grid;grid-template-columns:1.3fr 1fr;gap:30px;padding:35px 0 30px}.hubart{position:relative;border-radius:20px;background:linear-gradient(130deg,#142b2a,#0a141f);border:1px solid var(--line);padding:22px;display:grid;place-items:center;overflow:hidden}.hubart svg{width:100%;max-height:260px}.hubart span{position:absolute;bottom:16px;left:20px;font:10px monospace;color:#87b1a8;letter-spacing:2px}.search{width:280px;max-width:100%;padding:11px 15px;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:var(--text)}footer{border-top:1px solid var(--line);padding:35px 24px;color:var(--muted);font-size:12px}.foot{max-width:1212px;margin:auto;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footlinks{display:flex;gap:18px;flex-wrap:wrap}table{width:100%;border-collapse:collapse;font-size:12px}td,th{text-align:left;border-bottom:1px solid var(--line);padding:12px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--gold);color:var(--bg);padding:12px 24px;border-radius:10px;z-index:50}.error{color:#ff9a90;font-size:13px}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:5px;z-index:99;background:var(--bg)}@media(max-width:960px){.workspace{grid-template-columns:330px 1fr}.grid{grid-template-columns:repeat(2,1fr)}nav{gap:14px}.metrics{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){.workspace,.hubhero{grid-template-columns:1fr}.hubart{display:none}.nav{padding:16px}.nav nav a:not(.lablink){display:none}main{padding:24px 16px}.grid{grid-template-columns:1fr}.section-label{align-items:start;gap:15px;flex-direction:column}.meta{gap:12px;flex-wrap:wrap}h1{letter-spacing:-1px}.breadcrumbs{margin-bottom:22px}.inputs{padding:20px}.metrics{grid-template-columns:repeat(2,1fr)}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media print{header,footer,.inputs,.actions,.toolbar,.article,.breadcrumbs,.hero,.related{display:none!important}.workspace{display:block}.card{border:1px solid #aaa;background:white!important;color:black}.results{color:black}body{background:white;color:black}.big{color:black}.note{color:black}}
.seg{position:relative;gap:0;isolation:isolate}.seg:before{content:'';position:absolute;z-index:-1;top:4px;bottom:4px;left:4px;width:calc((100% - 8px) / var(--n,2));border-radius:7px;background:var(--panel);box-shadow:0 2px 6px #0003;transform:translateX(calc(var(--idx,0)*100%));transition:transform .22s}.seg button[aria-pressed=true]{background:transparent;box-shadow:none}.button-arrow{display:inline-block;transition:transform .22s}.btn:hover .button-arrow{transform:translateX(3px)}.btn svg{width:14px;height:14px;flex:none}.skeleton{height:110px;border-radius:12px;background:linear-gradient(100deg,var(--panel),var(--line),var(--panel));background-size:200%;animation:skeleton 1s infinite}@keyframes skeleton{to{background-position:-200%}}[hidden]{display:none!important}
/* Compact calculator-first homepage. Scoped so existing workspaces keep their layout. */
.home-page{background-image:radial-gradient(ellipse at 50% -30%,#b8733318,transparent 65%)}.home-page main{max-width:1210px;padding:34px 26px 24px}.home-page .nav{max-width:1262px;padding:17px 26px}.home-page .active-nav{color:var(--gold)}.home-intro{display:flex;justify-content:space-between;gap:25px;align-items:center;padding:0 0 26px}.home-intro h1{font-size:clamp(30px,3.4vw,44px);letter-spacing:-1.5px;margin:11px 0 10px}.home-intro h1 span{color:var(--gold)}.home-intro p{font-size:14px;color:var(--muted);margin:0}.home-utility{display:flex;flex-direction:column;align-items:flex-end;gap:10px;font-size:11px;color:var(--muted)}.available{color:var(--green);border:1px solid #75d8b530;background:#75d8b509;border-radius:20px;padding:5px 12px;font:11px 'JetBrains Mono',monospace}.available i{display:inline-block;width:5px;height:5px;background:var(--green);border-radius:50%;margin-right:6px}.home-grid-head{display:flex;justify-content:space-between;align-items:center;margin:0 0 14px}.home-grid-head h2{font-size:13px;letter-spacing:0;margin:0;font-weight:600}.home-grid-head>span{font:9px 'JetBrains Mono',monospace;letter-spacing:1.4px;color:var(--muted)}.calculator-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.calc-button{position:relative;display:grid;grid-template-columns:44px 1fr 16px;column-gap:14px;align-items:start;min-height:137px;padding:22px 20px 17px;background:linear-gradient(125deg,var(--surface),var(--bg));border:1px solid var(--line);border-radius:14px;box-shadow:inset 0 1px #ffffff03;transition:transform .22s,border-color .22s,box-shadow .22s;overflow:hidden}.calc-button:before{content:'';position:absolute;width:110px;height:110px;right:-50px;bottom:-70px;border:1px solid #b8733317;border-radius:30px;transform:rotate(35deg)}.calc-button:hover{transform:translateY(-3px);border-color:#b87333aa;box-shadow:0 8px 25px #0002,0 0 20px #b873330d;color:var(--text)}.calc-button:active{transform:scale(.985)}.tool-symbol{width:43px;height:43px;border:1px solid #b8733338;border-radius:11px;background:linear-gradient(145deg,#b8733320,#b8733306);display:grid;place-items:center;color:var(--gold)}.tool-symbol svg{width:25px;height:25px}.calc-copy{padding-top:1px;min-width:0}.calc-name{display:block;font-size:15px;font-weight:600;letter-spacing:-.25px;line-height:1.4}.calc-description{display:block;font-size:10.5px;color:var(--muted);line-height:1.5;margin-top:6px}.calc-arrow{color:var(--muted);font-size:17px;line-height:1.4;transition:.22s}.calc-button:hover .calc-arrow{color:var(--gold);transform:translate(2px,-2px)}.calc-tag{grid-column:2;font:8px 'JetBrains Mono',monospace;letter-spacing:1px;color:var(--gold);margin-top:15px}.calc-number{position:absolute;right:21px;bottom:17px;font:9px 'JetBrains Mono',monospace;color:var(--muted);opacity:.5}.home-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}.home-bottom p{font-size:10.5px;color:var(--muted);margin:0}.home-bottom p>span{color:var(--gold);margin-right:6px}.cost-link{font-size:11px;font-weight:600;color:var(--gold);white-space:nowrap}.cost-link span{padding-left:9px}.home-resources{display:flex;gap:22px;flex-wrap:wrap;padding-top:16px;font-size:10px;color:var(--muted)}.home-footer{padding:19px 26px;font-size:10px}.home-footer .foot{max-width:1158px}.home-footer .footlinks{gap:20px}.home-page.light .calc-button{background:linear-gradient(140deg,#fff,#fbfaf6)}.home-page.light .tool-symbol{background:#b873330b}.home-page.light .calc-tag{color:#855017}@media(max-width:1000px){.calc-button{padding:20px 15px;column-gap:11px;min-height:145px}.calc-name{font-size:13px}.calc-description{font-size:10px}.calc-number{right:16px}.home-page nav{gap:16px}}@media(max-width:720px){.home-page main{padding:26px 16px 20px}.home-page .nav{padding:16px}.home-intro{padding-bottom:25px}.home-intro h1{font-size:32px;letter-spacing:-1.2px}.home-intro p{font-size:12px;max-width:290px}.home-intro .eyebrow{font-size:9px;letter-spacing:1.3px}.home-utility{display:none}.home-grid-head>span{display:none}.calculator-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.calc-button{grid-template-columns:1fr 15px;column-gap:8px;padding:15px 13px;min-height:166px}.tool-symbol{grid-column:1;width:35px;height:35px;border-radius:8px;margin-bottom:11px}.tool-symbol svg{width:21px;height:21px}.calc-copy{grid-column:1 / -1}.calc-name{font-size:13px}.calc-description{font-size:10px;max-width:150px}.calc-arrow{grid-column:2;grid-row:1;text-align:right}.calc-tag{grid-column:1 / -1;font-size:7px;margin-top:12px;letter-spacing:.7px}.calc-number{right:12px;bottom:14px;font-size:8px}.home-bottom{align-items:flex-start;flex-direction:column;gap:11px}.home-resources{gap:12px;font-size:10px}.home-footer{padding:20px 16px}.home-footer .foot{gap:12px}.home-footer .footlinks{gap:14px}}@media(max-width:360px){.calculator-grid{grid-template-columns:1fr}.calc-button{grid-template-columns:40px 1fr 16px;min-height:112px}.tool-symbol{grid-column:1;grid-row:1}.calc-copy{grid-column:2;grid-row:1}.calc-arrow{grid-column:3}.calc-tag{grid-column:2}.calc-number{display:none}}
/* Light-only appearance, requested by the site owner. No saved dark preference is applied. */
:root{color-scheme:light;--bg:#f7f8fa;--surface:#fff;--panel:#eff2f6;--text:#17283a;--muted:#586777;--line:#dce2e8;--gold:#89521c;--copper:#b87333;--green:#187654;--board-fill:#dcebe3}body.light{--bg:#f7f8fa;--surface:#fff;--panel:#eff2f6;--text:#17283a;--muted:#586777;--line:#dce2e8;--gold:#89521c;--green:#187654}body{background-image:radial-gradient(ellipse at 80% 10%,#b8733308,transparent 40%),linear-gradient(#8b9ab008 1px,transparent 1px),linear-gradient(90deg,#8b9ab008 1px,transparent 1px)}.home-page{background:#f7f8fa}.home-page.light .calc-button{background:#fff;box-shadow:0 3px 12px #23324804}.home-page.light .calc-button:hover{border-color:#b87333;box-shadow:0 7px 20px #2332480c}.home-page.light .tool-symbol{background:#faf3e8;border-color:#e9d5b8;color:#996022}.home-page header{background:#fff}.home-footer{background:#fff}.home-page .home-intro h1 span{color:#a06626}.home-page .calc-tag{color:#966029}.home-page .calc-number{opacity:.7}.home-page .available{background:#edf7f1;border-color:#cce6d6}.error{color:#ac3328}.status.danger,.btn.danger{color:#ac3328}.diagram{background:#fafcfb}.diagram svg{--board-fill:#dcebe3}.card{box-shadow:0 3px 15px #23324803}.seg:before{box-shadow:0 1px 4px #23324815}footer{background:#fff}