:root{color-scheme:light;--ink:#162729;--muted:#58696c;--line:#d5dfdf;--gold:#dbb537;--teal:#00655f}*{box-sizing:border-box}body{margin:0;background:#f1f5f5;color:var(--ink);font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,textarea{font:inherit}button{cursor:pointer;border:0}button:disabled{opacity:.4;cursor:not-allowed}button:focus-visible,a:focus-visible{outline:3px solid #ae7b06;outline-offset:4px}header{height:82px;padding:0 max(5vw,24px);display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line)}.brand{color:var(--ink);text-decoration:none;font-size:24px;font-weight:750;letter-spacing:.02em}.brand span{font-size:12px;font-weight:650;letter-spacing:.16em;border-left:1px solid #aaa;margin-left:16px;padding-left:16px}.edition{font-size:14px;color:var(--muted)}main{max-width:1360px;margin:0 auto;padding:38px 32px 20px}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;gap:20px}.eyebrow{color:var(--teal);font-size:14px;margin:0 0 6px}h1{font-size:36px;line-height:1.25;letter-spacing:-.03em;margin:0 0 10px}.intro p:last-child{margin:0;color:var(--muted)}.local{background:#e0efeb;color:#185f51;padding:8px 12px;white-space:nowrap;font-size:14px;border-radius:4px}.workspace{display:grid;grid-template-columns:minmax(300px,.86fr) minmax(360px,1.14fr);border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}.input-panel{padding:26px;border-right:1px solid var(--line)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}h2{font-size:17px;margin:0}.text-btn{background:transparent;color:var(--teal);font-size:14px;padding:6px 0}label:not(.confirm){display:block;font-size:14px;font-weight:650;margin:16px 0 6px}label span{font-weight:400;color:var(--muted);margin-left:8px}input:not([type=checkbox]),textarea{width:100%;border:1px solid #a9bbbd;border-radius:5px;padding:10px 12px;color:var(--ink);background:#fff}textarea{font:14px/1.8 ui-monospace,SFMono-Regular,monospace;resize:vertical;min-height:175px;white-space:pre}input:focus,textarea:focus{outline:2px solid var(--teal);outline-offset:2px}.hint{font-size:13px;color:var(--muted);line-height:1.65;margin:10px 0}.confirm{display:flex;align-items:flex-start;font-size:14px;margin:20px 0}.confirm input{width:17px;height:17px;accent-color:var(--teal);flex-shrink:0;margin:4px 6px 0 0}.confirm span{margin:0;color:var(--ink)}.primary,.secondary{padding:12px 17px;border-radius:5px;font-size:15px;font-weight:650}.primary{background:var(--teal);color:#fff}.secondary{border:1px solid #a8b9ba;color:var(--ink);background:white}#check{width:100%}#status{font-size:14px;margin:12px 0 0;min-height:22px;color:#a02722}.output-panel>.section-head{padding:26px 26px 0}.output-panel>.section-head span{font-size:13px;color:var(--teal)}.plot{position:relative;margin:0 26px;background-color:#11282e;background-image:linear-gradient(#ffffff08 1px,transparent 1px),linear-gradient(90deg,#ffffff08 1px,transparent 1px);background-size:24px 24px;overflow:hidden;border-radius:6px;height:300px}svg{width:100%;height:100%}.north,.plot-note{position:absolute;color:#b0c6ca;font-size:12px;pointer-events:none}.north{right:18px;top:14px}.plot-note{left:18px;bottom:12px}.result{padding:22px 26px}.metrics{display:flex;gap:30px;justify-content:space-between;padding-bottom:19px;border-bottom:1px solid var(--line)}.metrics span{display:block;color:var(--muted);font-size:13px}.metrics strong{font-size:23px}ul{list-style:none;margin:18px 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px;font-size:14px}li:before{content:'✓';color:var(--teal);margin-right:8px}#warnings{font-size:13px;color:#775507}.downloads{display:flex;flex-wrap:wrap;gap:10px}footer{display:flex;justify-content:space-between;gap:10px;font-size:12px;color:var(--muted);padding-top:20px}@media(max-width:850px){.workspace{grid-template-columns:1fr}.input-panel{border-right:0;border-bottom:1px solid var(--line)}.intro{align-items:flex-start;flex-direction:column}h1{font-size:30px}.plot{height:270px}footer{flex-direction:column}}@media(max-width:480px){header{height:auto;min-height:74px;padding:16px;gap:10px}.brand{font-size:21px}.brand span{display:none}main{padding:24px 14px}.input-panel,.result{padding:20px}.output-panel>.section-head{padding:20px 20px 0}.plot{margin:0 20px}.metrics{gap:15px}.downloads button{width:100%}ul{grid-template-columns:1fr}}

/* Service entry and geometry diagnostics, retaining the original palette. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:8px;left:12px;z-index:10;transform:translateY(-160%);background:#fff;color:var(--teal);padding:12px 18px;border:2px solid var(--teal);border-radius:5px}
.skip-link:focus{transform:translateY(0)}
#workspace{scroll-margin-top:20px;outline-offset:4px}
.service-nav{color:var(--teal);font-size:14px;font-weight:650;text-underline-offset:4px;white-space:nowrap;padding:10px 0}
button,a{touch-action:manipulation}
.primary:hover:not(:disabled),.service-cta:hover{background:#004f4b}
.secondary:hover:not(:disabled){background:#edf5f3}
.text-btn:hover,.service-nav:hover{color:#003e39}
[aria-invalid=true]{border-color:#a02722!important}
#status.success{color:var(--teal)}
#badge.invalid{color:#a02722}
.area-block{padding:17px 0;border-bottom:1px solid var(--line)}
.area-block>span{font-size:14px;color:var(--muted)}
.area-values{display:flex;align-items:baseline;flex-wrap:wrap;gap:5px 9px;font-variant-numeric:tabular-nums;margin-top:4px}
.area-values strong{font-size:24px;line-height:1.3;overflow-wrap:anywhere}
.area-values span{font-size:14px;color:var(--muted)}
.area-divider{padding:0 4px}
.area-block .hint{margin:8px 0 0}
.service-card{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:25px 28px;margin-top:24px;background:#e4efed;border:1px solid #c2d7d3;border-left:4px solid var(--teal);border-radius:7px}
.service-card>div{min-width:0;max-width:760px}
.service-card h2{font-size:20px;line-height:1.5;text-wrap:balance}
.service-card p:not(.eyebrow){margin:8px 0 0;font-size:15px}
.service-card .hint{font-size:14px!important}
.service-cta{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;white-space:nowrap;flex-shrink:0;text-align:center;min-height:46px}
footer a{color:var(--muted);text-underline-offset:3px}
@media(max-width:850px){.service-card{align-items:flex-start;flex-direction:column;gap:18px}.service-cta{white-space:normal}.plot-note{max-width:calc(100% - 30px);font-size:12px}.area-values strong{font-size:22px}}
@media(max-width:480px){.service-nav{font-size:13px}header{flex-wrap:wrap}.service-card{padding:20px;margin-top:18px}.service-cta{width:100%}.service-card h2{font-size:18px}.area-values{gap:5px 7px}.area-values strong{font-size:21px}.brand{font-size:20px}.plot-note{font-size:12px}}