:root{--page: #171A20;--card: #20242C;--border: #2E343E;--text: #E8EAED;--muted: #A3AAB6;--link: #7FA6F5;--primary: #2E6BE6;--free: #2E6BE6;--occ: #E8770E;--path: #15181D;--raised: #282D36;--radius: 14px;--sans: "IBM Plex Sans", system-ui, sans-serif;--mono: "IBM Plex Mono", ui-monospace, monospace;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--text);font:15px/1.55 var(--sans)}a{color:var(--link)}h1,h2,h3{line-height:1.25;margin:0 0 8px}h2{font-size:17px;font-weight:600}h3{font-size:14px;font-weight:500}p{margin:0 0 8px}.fine,small{color:var(--muted);font-size:13px}button{font:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.5}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px}header{border-bottom:1px solid var(--border);padding:0 24px 22px;text-align:center}header nav{justify-content:flex-end;padding:10px 0;margin-bottom:14px;font-size:14px}header h1{font:600 38px/1.15 var(--sans);margin:0 0 6px}header p{color:var(--muted);font-size:16px;margin:0}nav{display:flex;gap:20px}nav a{color:var(--muted);text-decoration:none;padding-bottom:2px}nav a:hover{color:var(--text)}nav a.on{color:var(--text);border-bottom:2px solid var(--primary)}main{max-width:1240px;margin:0 auto;padding:22px 24px 60px}.intro{font-size:17px;margin-bottom:18px}.layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:20px;align-items:start}aside{display:flex;flex-direction:column;gap:16px}.thumbs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.thumbs button{background:var(--raised);border:2px solid transparent;border-radius:10px;padding:4px;color:var(--muted);text-align:left}.thumbs button:hover:not(:disabled){border-color:var(--border)}.thumbs button.selected{border-color:var(--primary);color:var(--text)}.thumbs img{width:100%;display:block;border-radius:6px}.thumbs span{font:500 12px var(--mono);padding:3px 2px 1px;display:block;color:var(--muted)}.thumbs button.selected span{color:var(--text)}.thumbs button:disabled{opacity:.85}.badge{background:#e8770e26;color:var(--occ);border:1px solid rgba(232,119,14,.4);font-size:12px;font-weight:500;padding:1px 8px;border-radius:999px;vertical-align:2px;margin-left:6px}.drop{display:flex;flex-direction:column;align-items:center;gap:2px;text-align:center;padding:20px 12px;margin:10px 0 14px;border:1.5px dashed var(--border);border-radius:10px;cursor:pointer;word-break:break-all}.drop:hover,.drop.over{border-color:var(--primary);background:#2e6be614}.drop input{display:none}.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:10px}.fields label{display:flex;flex-direction:column;gap:4px;font-size:13px}.fields small{font-size:12px}input[type=number]{background:var(--page);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:7px 10px;font:14px var(--mono);width:100%}input[type=number]:focus{outline:2px solid var(--primary);outline-offset:-1px}.primary{width:100%;background:var(--primary);color:#fff;border:0;border-radius:10px;padding:10px;font-weight:600;margin-top:4px}.primary:hover:not(:disabled){filter:brightness(1.1)}button.link{background:none;border:0;padding:0;color:var(--link);text-decoration:underline;font-size:13px}.results{display:flex;flex-direction:column;gap:16px;min-width:0}.empty{color:var(--muted);text-align:center;padding:60px 18px}.error{border-color:#e8770e99;display:flex;align-items:center;gap:14px;flex-wrap:wrap}.error button,.status button{background:var(--raised);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:6px 12px}.status{color:var(--muted)}.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;vertical-align:-2px;margin-right:6px}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{display:flex;flex-direction:column;gap:16px}.bone{background:linear-gradient(90deg,var(--card) 0%,var(--raised) 50%,var(--card) 100%);background-size:200% 100%;animation:shimmer 1.4s linear infinite}.bone.tall{height:130px}.photo-bone{aspect-ratio:4 / 3}@keyframes shimmer{to{background-position:-200% 0}}.verdict .sentence{font-size:21px;font-weight:500;margin:10px 0 12px}.pill{display:inline-block;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:2px 10px;border-radius:999px;border:1px solid}.pill.clear{color:#8fb2f5;border-color:var(--free);background:#2e6be626}.pill.blocked{color:#f2a65a;border-color:var(--occ);background:#e8770e26}.pill.refused,.pill.unknown{color:var(--muted);border-color:var(--border);background:var(--raised)}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.chip{background:var(--raised);border:1px solid var(--border);border-radius:999px;padding:3px 12px;font-size:13px;color:var(--muted)}.chip b{color:var(--text);font:500 13px var(--mono);margin-left:4px}.tips{margin:0 0 10px;padding-left:20px;color:var(--muted)}.pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}.panel{padding:14px}.panel h3{color:var(--muted)}.photo{position:relative}.photo img{width:100%;display:block;border-radius:8px}.photo svg{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.ribbon{fill:#15181d80;stroke:#fff;stroke-width:1.2;stroke-linejoin:round}.dist{fill:none;stroke:#fff;stroke-width:1.2;stroke-dasharray:5 3}.dist-label{fill:#fff;font:500 11px var(--mono);paint-order:stroke;stroke:#000000bf;stroke-width:3px}.map{width:100%;max-width:440px;display:block;margin:0 auto;border-radius:8px}.legend{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted)}.legend i{display:inline-block;width:14px;height:14px;border-radius:3px;margin-right:6px;vertical-align:-2px}.legend .free{background:var(--free)}.legend .occ{background:var(--occ)}.legend .unk{background:repeating-linear-gradient(45deg,#3a414d 0,#3a414d 2px,#2a2f38 2px,#2a2f38 6px);border:1px solid var(--border)}.legend .path{background:#15181db3;border:1.5px solid #fff}.legend .line{height:0;border-top:1.5px dashed var(--text);border-radius:0;vertical-align:3px}.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}.stat{padding:12px 14px}.stat .label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}.stat .value{font:500 22px var(--mono);margin:2px 0 4px}.stat .fine{font-size:12px;line-height:1.45}.assumptions{margin:0;padding-left:20px;font-size:13px;color:var(--muted)}.about{display:flex;flex-direction:column;gap:34px;max-width:1100px;margin:0 auto}.hero h1{font-size:30px;font-weight:600}.hero p{color:var(--muted);font-size:17px;max-width:760px}.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.steps .num{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:#2e6be62e;color:#8fb2f5;font:500 14px var(--mono);margin-bottom:10px}.steps h3{font-size:15px}.steps p{color:var(--muted);font-size:14px;margin:0}.bigs{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}.big{display:flex;flex-direction:column}.big .value{font:500 34px var(--mono);color:#8fb2f5;margin-bottom:6px}.big .compare{font-size:13px;color:var(--muted);background:var(--raised);padding:8px 10px;border-radius:8px}.big .measured{font-size:12px;color:var(--muted);margin:auto 0 0;padding-top:8px;border-top:1px solid var(--border)}.failures{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px;margin-top:12px}.failures figure{margin:0;padding:12px}.failures img{width:100%;display:block;border-radius:8px;background:#fff}.failures figcaption{font-size:14px;color:var(--muted);margin-top:10px}.failures figcaption b{color:var(--text)}.failures .text-only{display:flex;align-items:center}.fineprint p{color:var(--muted);margin:0 0 8px}details summary{cursor:pointer}footer{font-size:13px;color:var(--muted);border-top:1px solid var(--border);padding-top:18px}footer b{color:var(--text)}@media(max-width:900px){.layout,.pair{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}main{padding:18px 16px 48px}header{padding:0 16px 18px}header h1{font-size:30px}}@media(max-width:520px){.steps,.fields{grid-template-columns:1fr}}