:root{--bg:#f6f8fb;--card:#fff;--text:#0f172a;--muted:#667085;--accent:#2563eb;--accent-2:#16a34a;--line:#e3e8ef;--danger:#dc2626}*{box-sizing:border-box}html,body,#__next{min-height:100%}body{color:var(--text);background:var(--bg);margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji}.container{max-width:960px;margin:0 auto;padding:clamp(16px,3vw,32px)}header{margin-bottom:16px}h1{margin:0 0 6px;font-size:clamp(22px,4vw,32px);font-weight:700}.subtitle{color:var(--muted);margin:0}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:0 10px 20px #0f172a0f}.method-header{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;display:flex}@media (max-width:640px){.method-header{flex-direction:column;align-items:stretch;gap:8px}.method-header 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canvas{display:block}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}@media (max-width:600px){.walkthrough-controls .btn-group{width:100%}.walkthrough-controls .btn-group .btn{flex:1}}.note{color:var(--muted);text-align:center;margin:18px 0 0}.step-text{font-size:clamp(15px,2.2vw,18px);line-height:1.65}.step-text .intro{color:var(--muted);margin:0 0 10px}.step{border:1px solid var(--line);background:#2563eb08;border-radius:10px;padding:12px}.step+.step{margin-top:10px}.step-title{margin:0 0 6px}.badge{color:var(--accent);background:#2563eb1f;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:700;display:inline-block;box-shadow:inset 0 0 0 1px #2563eb47}.step:last-child .badge{background:var(--accent);color:#fff;box-shadow:none}.step-bullets{margin:6px 0 0 18px}.step-bullets li+li{margin-top:4px}.summary{border-top:1px dashed var(--line);margin-top:12px;padding-top:10px}.summary p{margin:6px 0}.summary p.answer{color:var(--accent-2);font-weight:700}.summary p.remainder{color:var(--muted)}.progress{background:var(--line);border-radius:999px;height:6px;position:relative;overflow:hidden}.progress-bar{background:linear-gradient(90deg,var(--accent),#1d4ed8);width:0;transition:width .2s;position:absolute;top:0;bottom:0;left:0}canvas{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;height:auto}@media (min-width:1024px){.step-extras .busstop-canvas{max-width:420px}}@media (max-width:600px){input[type=text],input[type=number]{min-width:140px}.actions{flex-direction:column}.actions .btn{width:100%}.inputs{flex-direction:column;align-items:stretch}.field{width:100%}.field input[type=text],.field input[type=number]{width:100%;min-width:0}.slash{display:none}}@media (min-width:900px){.results{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:start}}@media (prefers-reduced-motion:reduce){.method-card{transition:none}}
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