:root{color-scheme:light;--bg:#f5f5ef;--panel:#fff;--ink:#183731;--muted:#52655f;--line:#d4dfd8;--soft:#eaf1e9;--accent:#174f41;--button:#fff;--error:#a52727;--shadow:0 16px 55px #193d3010;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#111e1a;--panel:#192c24;--ink:#e6f2e9;--muted:#b1c7b9;--line:#405a4d;--soft:#233d30;--accent:#bde4bf;--button:#143424;--error:#ffb6b0;--shadow:none}}
:root[data-theme=dark]{color-scheme:dark;--bg:#111e1a;--panel:#192c24;--ink:#e6f2e9;--muted:#b1c7b9;--line:#405a4d;--soft:#233d30;--accent:#bde4bf;--button:#143424;--error:#ffb6b0;--shadow:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);line-height:1.6}button,input,select{font:inherit;color:inherit}button,select{cursor:pointer}button,select,input{border:1px solid var(--line);border-radius:9px;background:var(--panel)}button{padding:.65rem 1rem;font-weight:600}button:hover{background:var(--soft)}button:disabled{opacity:.6;cursor:default}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip{position:absolute;top:-100px;left:10px;background:var(--panel);padding:10px;z-index:9}.skip:focus{top:10px}
header,main,footer{max-width:1120px;margin:auto;padding-left:28px;padding-right:28px}header{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:100px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-size:1.5rem;line-height:1.15;font-weight:750;letter-spacing:-1px}.brand-sub{display:block;font-size:.72rem;font-weight:500;letter-spacing:2px;text-transform:uppercase;margin-top:4px}.brand-icon{display:grid;place-items:center;background:var(--accent);color:var(--button);height:44px;width:44px;border-radius:13px;font-size:1.8rem}.header-actions{display:flex;gap:14px;align-items:center}.header-actions button{font-size:.8rem;background:transparent}.language-label{font-size:.72rem;display:flex;gap:7px;align-items:center}.language-label select{padding:.6rem;max-width:140px}.intro{max-width:790px;margin:43px 0 30px}.eyebrow{font-size:.69rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--muted)}h1{font-size:clamp(2rem,4.5vw,3.6rem);line-height:1.09;letter-spacing:-1.8px;margin:16px 0 20px;font-weight:650}.intro>p:last-child{font-size:1.04rem;color:var(--muted);max-width:650px}h2{font-size:1.4rem;letter-spacing:-.5px;margin:0 0 18px}h3{font-size:1rem;margin:24px 0 8px}p{margin:0 0 16px}.converter{padding:28px 32px;background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.tool-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}.tool-heading label{font-size:.82rem;font-weight:700}.local-badge{font-size:.72rem;color:var(--muted)}.local-badge:before{content:'●';color:var(--accent);margin-right:6px}#category{padding:10px 12px;min-width:220px;max-width:100%;font-weight:600;background:var(--soft)}.fields{display:grid;grid-template-columns:minmax(0,1fr) 55px minmax(0,1fr);align-items:center;gap:18px;margin:24px 0 14px}.value-box{border:1px solid var(--line);border-radius:12px;background:var(--bg);padding:16px}.value-box>label:not(.sr-only){display:block;color:var(--muted);font-size:.8rem;font-weight:600}.value-box input{display:block;width:100%;background:transparent;border:0;border-radius:0;font-size:clamp(1.5rem,3.1vw,2.3rem);line-height:1.4;margin:7px 0 12px;padding:4px 0;font-variant-numeric:tabular-nums}.value-box select{width:100%;padding:9px 10px;font-size:.9rem;min-height:44px}.swap{height:50px;width:50px;border-radius:50%;font-size:1.5rem;padding:0}.hint{font-size:.78rem;color:var(--muted)}#input-help{margin:6px 0}.error{color:var(--error);font-size:.85rem;min-height:1.4em;margin:7px 0}.result-row{border-top:1px solid var(--line);padding-top:18px;display:flex;align-items:center;gap:20px;justify-content:space-between}output{font-size:1.07rem;font-weight:650;overflow-wrap:anywhere}.primary{background:var(--accent);color:var(--button);white-space:nowrap}.primary:hover{background:var(--accent);filter:brightness(1.1)}#copy-status{margin:8px 0 0;min-height:1.5em}.content-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:65px;margin:50px 0}.explanation p{color:var(--muted)}.privacy-note{border-left:3px solid var(--accent);padding:8px 0 1px 18px;margin-top:24px}.privacy-note strong{font-size:.88rem}.privacy-note p{font-size:.84rem;margin:8px 0}.popular ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.popular li{border-bottom:1px solid var(--line)}.popular a{display:flex;gap:8px;justify-content:space-between;padding:10px 0;text-decoration:none;font-size:.8rem}.popular a:hover{text-decoration:underline}.popular a[aria-current]{font-weight:750}.reference,.faq{margin-bottom:42px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px}table{border-collapse:collapse;width:100%;font-size:.85rem;text-align:left}td,th{padding:10px 16px;border-bottom:1px solid var(--line)}th{background:var(--soft);font-weight:650}tr:last-child td{border:0}td:nth-child(2){font-variant-numeric:tabular-nums}details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:600}details p{color:var(--muted);margin:16px 0 0}.legal{min-height:55vh;max-width:780px;margin:48px 0 70px}.legal>p{line-height:1.9}footer{border-top:1px solid var(--line);padding-top:32px;padding-bottom:40px;display:flex;justify-content:space-between;gap:30px;font-size:.78rem;color:var(--muted)}.footer-brand{font-weight:750;text-decoration:none;font-size:1rem}footer nav{display:flex;flex-wrap:wrap;gap:12px 20px;align-content:start;justify-content:flex-end;max-width:520px}footer nav button{font-size:.75rem;padding:0;border:0;background:transparent;text-decoration:underline;color:var(--accent)}.preferences{position:fixed;bottom:18px;right:18px;max-width:480px;padding:24px;background:var(--panel);border:2px solid var(--line);border-radius:14px;box-shadow:0 8px 50px #0003;z-index:5}.preferences p{font-size:.84rem}.preferences>div{display:flex;flex-wrap:wrap;gap:8px}.preferences button{font-size:.8rem}.ad{margin:24px 0;text-align:center}.ad small{display:block;font-size:.7rem;color:var(--muted)}.adsbygoogle{display:block}
@media(max-width:700px){header,main,footer{padding-left:18px;padding-right:18px}header{min-height:86px;gap:10px}.brand{font-size:1.25rem}.brand-icon{width:36px;height:36px}.header-actions{gap:8px}.header-actions button{font-size:.7rem;padding:8px}.language-label{font-size:0}.language-label select{max-width:110px;font-size:.75rem}.intro{margin-top:30px}h1{letter-spacing:-1px}.converter{padding:20px}.fields{gap:10px;grid-template-columns:minmax(0,1fr) 40px minmax(0,1fr)}.value-box{padding:10px}.swap{width:38px;height:38px}.value-box input{font-size:1.5rem}.value-box select{font-size:.8rem;padding-left:5px}.content-grid{grid-template-columns:1fr;gap:32px;margin:34px 0}.result-row{align-items:flex-start}.primary{font-size:.8rem}.local-badge{font-size:.63rem}footer{flex-direction:column}footer nav{justify-content:flex-start}.preferences{left:12px;right:12px;bottom:12px;max-height:80vh;overflow:auto}}
@media(max-width:410px){.fields{grid-template-columns:minmax(0,1fr);gap:12px}.swap{justify-self:center;transform:rotate(90deg)}.result-row{flex-direction:column;gap:12px}.tool-heading{flex-wrap:wrap}.header-actions{flex-direction:column;align-items:flex-end;gap:4px}.header-actions button{font-size:.65rem;padding:2px 8px}.intro h1{font-size:2rem}.value-box input{margin:0 0 6px}.fields{margin-top:18px}.popular ul{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}