:root{--orange:#ea580c;--orange-soft:#fff1e8;--ink:#1f2328;--grey:#6b7280;--line:#e5e7eb;color:var(--ink);background:#fff;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0}.screen{max-width:480px;margin:0 auto;padding:16px 16px 40px}.brand{text-align:center;margin:8px 0 2px;font-size:28px;font-weight:800}.tagline{text-align:center;color:var(--grey);margin:0 0 16px}.topbar{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.topbar .brand{margin:0;font-size:18px}.back{color:var(--orange);font:inherit;cursor:pointer;text-align:left;background:0 0;border:0;min-width:80px;padding:8px 0;font-size:14px}canvas.chart{aspect-ratio:4/3;border:1px solid var(--line);border-radius:10px;width:100%;display:block}canvas.chart.two{aspect-ratio:4/5}@media (width<=520px){canvas.chart{aspect-ratio:1}canvas.chart.two{aspect-ratio:4/6}}dialog.caution{cursor:pointer;outline:none}.caption{color:var(--grey);margin:6px 0 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0;font-size:13px}.legend{flex-wrap:wrap;gap:4px 14px;margin:6px 0 10px;font-size:12px;display:flex}.legend i{border-radius:2px;width:10px;height:10px;margin-right:5px;display:inline-block}details{color:#444;border-top:1px solid var(--line);padding-top:8px;font-size:13px}details summary{cursor:pointer;font-weight:600}details h3{margin:10px 0 2px;font-size:13px}details p{margin:2px 0}details a{color:var(--orange)}.notice{background:var(--orange-soft);color:#9a3412;border:1px solid #fdba74;border-radius:10px;margin:8px 0;padding:10px 12px;font-size:14px}.selected{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.selected button{border:1px solid var(--line);font:inherit;cursor:pointer;background:#fafafa;border-radius:999px;padding:4px 10px;font-size:12px}dialog.popup{border:0;border-radius:14px;max-width:360px;padding:20px;box-shadow:0 10px 40px #0000004d}dialog.popup::backdrop{background:#00000073}dialog.popup p{margin:0 0 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label{align-items:center;gap:8px;display:flex}.photo-bar i{transition:width .5s}@media (prefers-reduced-motion:reduce){.photo-bar i{transition:none}}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.vent-list{margin-top:10px}.vent-row{width:100%;font:inherit;color:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:6px;grid-template-columns:14px 1fr auto;align-items:center;gap:8px;padding:6px 4px;font-size:13px;display:grid}.vent-row.static{cursor:default}.vent-row.muted .vent-label{color:var(--grey)}button.vent-row:hover,button.vent-row:focus-visible{background:var(--orange-soft)}.chip-dot{border-radius:3px;width:12px;height:12px;display:block}.vent-value{font-weight:600}.photo-year select{width:auto;padding:6px 10px}