:root{color-scheme:light;--ink:#152b42;--muted:#526477;--blue:#174bda;--border:#dae3ed}*{box-sizing:border-box}body{margin:0;background:#f5f8fc;color:var(--ink);font:16px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}header,footer{max-width:1120px;margin:auto;padding:28px 32px;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-weight:750;color:var(--ink);text-decoration:none}.mark{background:var(--ink);color:white;width:36px;height:36px;border-radius:9px;display:grid;place-items:center}.tag,.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.1em;color:var(--blue)}.tag{border:1px solid var(--border);padding:5px 10px;border-radius:6px}main{max-width:850px;margin:30px auto 65px;padding:0 24px}.intro{text-align:center;margin-bottom:32px}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;letter-spacing:-.035em;margin:15px 0}.intro p{color:var(--muted);font-size:1.125rem}.panel{background:white;border:1px solid var(--border);border-radius:16px;padding:30px;box-shadow:0 8px 28px #152b4205}label{display:block;font-weight:650;margin-bottom:10px}.input-row{display:flex;gap:12px}input{min-width:0;flex:1;border:1px solid #aebed1;border-radius:8px;padding:14px 16px;font:inherit;color:var(--ink);background:#fff}button{font:inherit;font-weight:650;color:white;background:var(--blue);border:0;border-radius:8px;padding:14px 24px;cursor:pointer}button:hover{background:#123cb0}button:disabled{opacity:.6;cursor:wait}:focus-visible{outline:3px solid #5484ff;outline-offset:4px}.muted{color:var(--muted);font-size:.875rem;margin:12px 0 0}[hidden]{display:none!important}#status{display:flex;gap:10px;align-items:center;margin-top:20px;color:var(--muted)}.spinner{width:18px;height:18px;border:2px solid #dbe5f9;border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#error,.warning{background:#fff5e5;color:#714513;padding:16px;border-radius:8px;margin-top:20px}.results{margin-top:24px}.result-top{display:flex;align-items:center;justify-content:space-between;gap:12px}h2{font-size:1.125rem}#result-heading{font-size:.8rem;letter-spacing:.1em;color:var(--muted)}.badge{font-size:.875rem;background:#e7f5ed;color:#21623e;padding:5px 10px;border-radius:6px}.total{font-size:clamp(3rem,9vw,4.5rem);line-height:1.1;font-weight:750;letter-spacing:-.04em;margin:20px 0 8px;color:var(--blue)}#result-caption{margin:0;color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin:26px 0;padding:20px 0;gap:16px}.metrics span{display:block;color:var(--muted);font-size:.875rem}.metrics strong{font-size:1.5rem}h3{font-size:1rem}#sources{padding:0;list-style:none}#sources li{padding:10px 0;border-bottom:1px solid #eef2f6}#sources a{color:var(--blue);overflow-wrap:anywhere}#sources small{display:block;color:var(--muted);overflow-wrap:anywhere}.note{display:flex;gap:12px;margin:22px 4px;color:var(--muted);font-size:.875rem}.note p{margin:0}.explanation{margin-top:40px;color:var(--muted)}.explanation h2{color:var(--ink)}footer{border-top:1px solid var(--border);color:var(--muted);font-size:.875rem}@media(max-width:600px){header,footer{padding:20px;flex-wrap:wrap}.tag{display:none}main{margin-top:20px;padding:0 16px}.panel{padding:22px}.input-row{flex-direction:column}.result-top{flex-direction:column;align-items:flex-start}.metrics{gap:8px}.metrics span{font-size:.8rem}.metrics strong{font-size:1.25rem}}@media(prefers-reduced-motion:reduce){.spinner{animation:none}}