:root{color-scheme:dark;--bg:#101311;--panel:#191e1a;--line:#343b32;--muted:#a4aea3;--accent:#d8f36a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#f1f4ed;font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main{max-width:1140px;margin:auto;padding:30px 36px 24px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:24px;gap:18px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;letter-spacing:1.5px;color:#f1f4ed;text-decoration:none}.mark{display:grid;place-items:center;width:30px;height:30px;background:var(--accent);color:var(--bg);font-size:27px;line-height:1}.tool{color:var(--muted);font-size:12px;border-left:1px solid var(--line);padding-left:14px;margin-left:8px}.edition,.eyebrow,#status{font:12px/1.5 ui-monospace,Consolas,monospace;letter-spacing:1.5px}.edition{color:var(--muted)}.heading{padding:38px 0 30px}.eyebrow{color:var(--accent);margin:0 0 10px}h1{font-size:clamp(36px,5vw,56px);line-height:1.1;letter-spacing:-2px;margin:0 0 13px}h1 span{color:var(--accent)}.heading>p:last-child{color:var(--muted);margin:0}.workspace{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:12px;overflow:hidden}.inputs{padding:30px;background:var(--panel)}fieldset{padding:0;border:0;margin:0 0 28px;min-width:0}legend{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:650;margin-bottom:18px}.number{font:12px ui-monospace,monospace;border:1px solid #68724c;color:var(--accent);padding:5px 7px}.target-number{color:#e6eae0;border-color:#667061}.pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{display:block;color:var(--muted);font-size:14px}input{display:block;width:100%;margin-top:8px;border:1px solid #424a3e;border-radius:5px;background:#101511;color:#f1f4ed;padding:14px 12px;font:24px/1.3 ui-monospace,Consolas,monospace;min-width:0}input::placeholder{font-size:17px;color:#7f8a7c}input:focus-visible,button:focus-visible,summary:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.actions{display:flex;gap:12px}button{cursor:pointer;border:0;border-radius:5px;padding:12px 18px;background:var(--accent);color:#202718;font:600 14px/1.5 system-ui}button:hover{filter:brightness(1.08)}button span{margin-left:16px}.secondary{border:1px solid #515b49;background:transparent;color:#d5dccf}details{margin-top:28px;border-top:1px solid var(--line);padding-top:18px}summary{cursor:pointer;font-size:14px}summary span{float:right;color:var(--muted);font:12px/1.8 ui-monospace,monospace}details p{font-size:14px;color:var(--muted)}.scale-input{margin-top:18px}.scale-input input{font-size:18px;max-width:200px}.result{padding:30px;background:#20291e;border-left:1px solid var(--line)}.result-top{display:flex;justify-content:space-between;gap:16px;align-items:start}.result-top .eyebrow{margin:0}#status{font-size:12px;letter-spacing:.5px;color:#b1bda6;text-align:right}.range{display:flex;align-items:baseline;gap:12px;margin-top:16px;overflow-wrap:anywhere}.range output{font:650 clamp(48px,7vw,86px)/1.25 ui-monospace,Consolas,monospace;letter-spacing:-5px}.range>span{font-size:28px;color:var(--accent)}#message{color:#bcc8b3;font-size:14px;min-height:21px;margin:4px 0 20px}.diagram svg{display:block;width:100%;height:auto}.diagram text{fill:#c8d2c0;font:11px ui-monospace,monospace;letter-spacing:1px}.diagram-caption{display:block;font-size:12px;color:#a8b49e;text-align:center;margin-top:6px}.deltas{display:grid;grid-template-columns:1fr 1fr;gap:18px;border-top:1px solid #43503c;margin-top:20px;padding-top:18px}.deltas span{display:block;color:#b4c0aa;font-size:14px}.deltas strong{font:18px/1.8 ui-monospace,monospace;overflow-wrap:anywhere}.note{font-size:13px;color:#b0bca6;line-height:1.6;margin:18px 0 0}footer{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:26px 0;color:var(--muted);font-size:14px}footer strong{color:#d9e0d4;font-weight:600}footer p{margin:6px 0 0;max-width:650px}footer a{color:#c6d6aa;white-space:nowrap}b{font-weight:600}@media(max-width:740px){main{padding:22px 18px}.edition{display:none}.heading{padding-top:28px}.workspace{grid-template-columns:1fr}.inputs,.result{padding:24px}.result{border-left:0;border-top:1px solid var(--line)}footer{align-items:start;flex-direction:column;gap:16px}.range output{font-size:70px}h1{letter-spacing:-1px}}@media(max-width:380px){.inputs,.result{padding:18px}.pair{gap:10px}.tool{font-size:11px;padding-left:9px;margin-left:0}.result-top{flex-direction:column;gap:4px}}