/* Oxygen Level (SpO2) Checker (ROADMAP-Calcs-SelfHealth.md SH2) — only what the core stylesheet
   does not already give: the emergency block, the scale, the notes and the by-age table. Sizes
   never go under 16px (the site's 18px floor is set once, in the registry's extraCss). Every
   zone colour is paired with a word on the drawing — colour is never the only signal. */
.chqt-sh-devices { flex-wrap: wrap; }
.chqt-sh-emergency { border: 3px solid #B03A30; background: #FBEDEB; border-radius: 10px; padding: 12px 14px; margin: 0 0 14px; }
.chqt-sh-emergency__text { margin: 0 0 6px; font-weight: 700; font-size: 18px; line-height: 1.45; color: #6E1E17; }
.chqt-sh-emergency__src { margin: 0; font-size: 16px; }
.chqt-sh-scale { margin: 14px 0 6px; }
.chqt-sh-scale svg { width: 100%; height: auto; display: block; }
.chqt-sh-zone { stroke: #fff; stroke-width: 2; }
.chqt-sh-zone.is-low { fill: #F4D3CF; }
.chqt-sh-zone.is-mid { fill: #F6E3C4; }
.chqt-sh-zone.is-ok { fill: #CFE8DE; }
.chqt-sh-zone.is-none { fill: var(--chqt-cream, #F2F7F8); }
.chqt-sh-zlabel { font-size: 16px; font-weight: 700; fill: #14212A; }
.chqt-sh-tick { stroke: #4E626D; stroke-width: 1.5; }
.chqt-sh-tlabel { font-size: 16px; fill: #4E626D; }
.chqt-sh-band { fill: #0F5E68; }
.chqt-sh-blabel { font-size: 16px; font-weight: 600; fill: #0A444C; }
.chqt-sh-mark { fill: #14212A; }
.chqt-sh-mlabel { font-size: 18px; font-weight: 700; fill: #14212A; }
.chqt-sh-notes { list-style: none; margin: 10px 0 16px; padding: 0; display: grid; gap: 10px; }
.chqt-sh-note { border-left: 4px solid var(--chqt-line, #D9E5E8); padding: 4px 0 4px 12px; line-height: 1.5; }
.chqt-sh-note--band { border-left-color: #0F5E68; }
.chqt-sh-note--skin { border-left-color: #C2703B; }
.chqt-sh-src { display: block; font-size: 16px; color: var(--chqt-muted, #4E626D); margin-top: 3px; }
.chqt-sh-src a { color: inherit; }
.chqt-sh-agewrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0; }
.chqt-sh-age { width: 100%; border-collapse: collapse; }
.chqt-sh-age caption { text-align: left; font-weight: 700; padding-bottom: 6px; }
.chqt-sh-age th, .chqt-sh-age td { padding: 8px 10px; border-bottom: 1px solid var(--chqt-line, #D9E5E8); text-align: left; }
.chqt-sh-age tr[data-hit="1"] th, .chqt-sh-age tr[data-hit="1"] td { background: var(--chqt-cream, #F2F7F8); font-weight: 700; }
.chqt-sh-howto { margin-top: 14px; }
.chqt-sh-howto h3 { font-size: 18px; margin: 12px 0 4px; }
.chqt-sh-howto ol { margin: 0 0 6px; padding-left: 1.3em; }
@media print { .chqt-sh-emergency { border-width: 2px; } .chqt-sh-howto { display: block; } }