:root{color-scheme:dark;--bg:#111511;--panel:#191e18;--border:#30362c;--text:#edf0e7;--muted:#939b8b;--lime:#c4dc89}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif;font-size:14px}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}header{height:86px;padding:0 42px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;font-size:25px;font-weight:900;letter-spacing:-1.4px}.brand-light{font-weight:400}.brand-icon{display:grid;place-items:center;width:34px;height:34px;margin-right:13px;background:var(--lime);color:#161d10;font-size:25px;clip-path:polygon(0 0,100% 0,100% 76%,50% 100%,0 76%)}.tag{font-size:9px;letter-spacing:2px;font-weight:400;border-left:1px solid #444b3c;padding-left:18px;margin-left:18px;color:var(--muted)}.header-note{font-size:10px;letter-spacing:1.8px;color:var(--muted)}i{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--lime);margin-right:8px}.layout{display:flex;min-height:calc(100vh - 86px)}aside{width:250px;flex-shrink:0;border-right:1px solid var(--border);padding:40px 18px;display:flex;flex-direction:column}.nav-label{font-size:9px;letter-spacing:1.5px;color:#828b79;padding:0 14px;margin-bottom:21px}.nav-active{background:#242d1e;border:1px solid #3a472c;color:var(--lime);padding:16px 13px;display:flex;align-items:center;gap:10px;font-size:12px;border-radius:3px}.nav-active>span:first-child{font-size:22px}.nav-arrow{margin-left:auto}.side-bottom{margin-top:auto;padding:70px 14px 8px}.tiny-cross{color:var(--lime);font-size:25px}.side-bottom p{color:#a2aa98;line-height:1.7;font-size:17px}.side-bottom small{font-size:8px;color:#737e68;letter-spacing:1px}main{width:100%;max-width:1320px;padding:45px 56px 22px;margin:auto}.eyebrow{display:flex;justify-content:space-between;font-family:monospace;font-size:10px;letter-spacing:1.8px;color:var(--lime)}.version{color:#737d6a}h1{font-size:clamp(38px,4.5vw,62px);line-height:1.06;letter-spacing:-2.5px;font-weight:600;margin:24px 0 18px}h1 em{font-style:normal;color:var(--lime)}.intro{color:#a2aa98;line-height:1.8;margin:0 0 33px;font-size:14px}.workspace{display:grid;grid-template-columns:1.14fr 1fr;gap:22px}.calculator,.map-panel{border:1px solid var(--border);border-radius:5px;background:var(--panel);overflow:hidden}.panel-heading{display:flex;align-items:center;justify-content:space-between;padding:21px 24px;border-bottom:1px solid var(--border);gap:10px}h2{font-size:14px;font-weight:500;margin:0}.pill{font-family:monospace;font-size:9px;letter-spacing:.6px;border:1px solid #414b34;padding:5px 7px;color:var(--lime);white-space:nowrap}form{padding:25px 24px 18px}label{display:flex;align-items:center;gap:10px;font-size:12px;margin-bottom:12px}.point{font:11px monospace;border:1px solid #576447;color:var(--lime);display:grid;place-items:center;width:23px;height:23px;border-radius:3px}.point-b{background:var(--lime);color:#232d19;border-color:var(--lime)}.field-detail{margin-left:auto;font:9px monospace;letter-spacing:1px;color:#828c77}input{width:100%;border:1px solid #424c38;background:#12170f;color:var(--text);padding:15px;font-family:monospace;font-size:18px;border-radius:3px;outline:none;transition:border-color .15s}input::placeholder{color:#68715f}input:focus{border-color:var(--lime);box-shadow:0 0 0 2px #c4dc8915}input[aria-invalid=true]{border-color:#e6a18b}.help{font-size:10px;color:#89947e;margin:9px 0 0;min-height:14px}.help.error{color:#efb29f}.swap-row{display:flex;align-items:center;gap:12px;margin:14px 0}.swap-row>span{height:1px;background:var(--border);flex:1}button{cursor:pointer;border:0;background:none;color:#b6bfaa}.swap-row button{font-size:19px;padding:3px 9px}.swap-row button span{font-size:10px;vertical-align:middle;margin-left:5px}button:hover{color:var(--lime)}button:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:4px}.form-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:24px;color:#89947e;font-size:10px;gap:10px}.form-bottom button{font-size:10px;padding:6px 0}.result{background:#c4dc89;color:#202b13;padding:20px 24px 19px;min-height:164px}.result-label{display:flex;justify-content:space-between;font:10px monospace;letter-spacing:1.4px}.result-label span{font-size:18px}.distance{display:flex;align-items:baseline;gap:12px;margin:8px 0}.distance output{font-family:monospace;font-size:clamp(32px,4vw,53px);font-weight:700;letter-spacing:-2px;overflow-wrap:anywhere}.distance>span{font-size:24px}.result p{margin:0;color:#485b31;font-size:11px;line-height:1.5}.map-symbol{color:var(--lime);font-size:20px;line-height:1}.map{position:relative;background:#151b12;margin:20px 20px 0;border:1px solid #343e2b;overflow:hidden}.map svg{display:block;width:100%;min-height:270px}.map-corner{position:absolute;top:14px;left:15px;font:8px monospace;letter-spacing:1px;color:#99a888;line-height:1.8}.map-corner span{color:#606e52}.map-status{position:absolute;bottom:14px;left:14px;font:8px monospace;color:var(--lime);letter-spacing:1px}.axis{position:absolute;right:12px;bottom:13px;font:9px monospace;color:#889976}.legend{display:flex;gap:24px;margin:22px 24px;font-size:10px;color:#a9b29e}.dot{display:inline-block;width:8px;height:8px;border:1px solid var(--lime);border-radius:50%;margin-right:7px}.dot.b{background:var(--lime)}.map-caption{font-size:10px;color:#87947b;line-height:1.7;margin:0 24px 20px;border-top:1px solid var(--border);padding-top:16px}.instructions{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:27px 0 35px}.instructions>div{display:flex;gap:12px}.instructions>div>span{color:#748260;font:11px monospace;padding-top:3px}.instructions p{font-size:10px;line-height:1.7;color:#89947e;margin:0}.instructions strong{display:block;color:#c7cebf;font-size:11px;font-weight:400;margin-bottom:3px}footer{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--border);padding-top:19px;font-size:9px;line-height:1.6;color:#737f69}.footer-slash{margin:0 9px;color:#48543d}@media(min-width:1500px){main{padding-top:60px;padding-bottom:35px}}@media(max-width:1150px){aside{width:210px;padding-left:10px;padding-right:10px}main{padding:35px 28px 20px}.panel-heading{padding:18px}.workspace{gap:16px}form{padding:20px 18px 15px}.result{padding:20px 18px}.tag{display:none}.map{margin:16px 14px 0}.legend{gap:12px;margin:20px 16px}.map-caption{margin:0 16px 16px}}@media(max-width:850px){header{height:70px;padding:0 24px}.layout{display:block}aside{width:auto;border-right:0;border-bottom:1px solid var(--border);padding:12px 24px}.nav-label,.side-bottom{display:none}.nav-active{width:max-content;padding:9px 14px;gap:12px}.nav-arrow{margin-left:20px}main{padding:30px 24px 20px}h1{font-size:48px}.workspace{grid-template-columns:1.1fr 1fr}.header-note{font-size:8px}footer{flex-wrap:wrap}}@media(max-width:620px){.workspace{grid-template-columns:1fr}.header-note{display:none}main{padding:28px 18px 20px}aside{padding:12px 18px}header{padding:0 18px}h1{font-size:45px;margin-top:22px}.intro{font-size:13px}.desktop-break{display:none}.map svg{max-height:290px}.instructions{grid-template-columns:1fr;gap:18px}.instructions p{font-size:11px}.instructions strong{font-size:12px}.distance output{font-size:52px}.panel-heading{padding:20px}.map-panel .panel-heading{padding:18px 20px}form{padding:23px 20px 18px}.result{padding:22px 20px}footer{font-size:9px}.eyebrow{font-size:9px}}