:root{color-scheme:light;--ink:#182b29;--muted:#526460;--accent:#17614b;--line:#d9dfd8;--paper:#f5f5ef}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.65}header,main,footer{max-width:1120px;margin:auto}header{display:flex;align-items:center;justify-content:space-between;padding:25px 24px;border-bottom:1px solid var(--line)}a{color:var(--accent);text-underline-offset:4px}.brand{font-size:19px;font-weight:800;text-decoration:none;display:flex;align-items:center;gap:10px}.mark{display:grid;place-items:center;background:var(--ink);color:white;border-radius:8px;width:34px;height:34px}.tag,.step,.eyebrow{font-size:12px;font-weight:700;letter-spacing:.09em}.tag{color:var(--muted)}main{padding:0 24px}.intro{padding:48px 0 30px}.eyebrow{color:var(--accent)}h1{font-size:clamp(40px,6vw,66px);letter-spacing:-.065em;line-height:1.16;margin:15px 0 18px}h1 span{color:var(--accent)}.intro>p:last-child{color:var(--muted);font-size:17px}.workspace{display:grid;grid-template-columns:1fr 1.2fr;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:white;box-shadow:0 12px 38px #182b2907}.entry,.result{padding:32px;min-width:0}.result{background:#ecf2e9;border-left:1px solid var(--line)}.step{color:var(--muted)}h2{font-size:22px;letter-spacing:-.04em;margin:12px 0 24px}label{font-size:14px;font-weight:700;display:block;margin-bottom:8px}input,select,button{font:inherit}input,select{background:white;color:var(--ink);border:1px solid #9caea4;border-radius:8px;min-height:52px;padding:10px 12px;width:100%}input{font-variant-numeric:tabular-nums}.input-row{display:grid;grid-template-columns:minmax(0,1fr) 100px;gap:8px}.hint{font-size:13px;color:var(--muted);line-height:1.65}.examples{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}button{cursor:pointer;min-height:44px;border-radius:8px;padding:10px 14px;border:1px solid var(--line);background:white;color:var(--ink)}.examples button{font-size:12px}.primary{background:var(--accent);color:white;width:100%;display:flex;justify-content:space-between;border:0;font-weight:700}.secondary{background:transparent;width:100%;border-color:#91a798}.error{color:#9d2822;font-size:14px}.local-note{border-top:1px solid var(--line);padding-top:22px;margin-top:28px;font-size:12px;color:var(--muted)}.byte-label{font-size:12px;margin-bottom:4px}.byte-value{margin:0 0 24px;overflow-wrap:anywhere}.byte-value strong{font-size:clamp(23px,3vw,35px);letter-spacing:-.04em;font-variant-numeric:tabular-nums}.byte-value span{font-size:16px;color:var(--muted)}table{width:100%;table-layout:fixed;border-collapse:collapse}th{text-align:left;font-size:12px;padding:12px 8px;border-bottom:1px solid #b9c9bb}td{font-size:14px;padding:12px 8px;border-bottom:1px solid #d0ddce;vertical-align:top;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}td small{display:block;color:var(--muted)}.transfer{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;padding:30px 0;border-bottom:1px solid var(--line);margin-bottom:40px}.transfer h2{margin:8px 0}.transfer input{max-width:240px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.guide h3{font-size:17px}.guide article p{font-size:14px;color:var(--muted)}.number{color:var(--accent);font-size:12px;font-weight:bold}.guide{padding-bottom:32px}footer{border-top:1px solid var(--line);padding:24px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}:focus-visible{outline:3px solid #b06120;outline-offset:4px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.skip{position:absolute;top:-80px;background:white;padding:12px;z-index:2}.skip:focus{top:8px}.privacy{max-width:760px;padding:45px 24px}.privacy h1{font-size:36px}@media(max-width:700px){header{padding:18px}.tag{font-size:10px;letter-spacing:0}main{padding:0 18px}.intro{padding-top:28px}.workspace{grid-template-columns:1fr}.entry,.result{padding:24px}.result{border-left:0;border-top:1px solid var(--line)}.transfer,.guide-grid{grid-template-columns:1fr;gap:18px}.guide-grid article{border-top:1px solid var(--line);padding-top:16px}footer{flex-direction:column;gap:8px}.byte-value strong{font-size:28px}}