/* Shared styles for Nursing Algorithm tools (EKG, labs, calculators) */
.nat{--ink:#12324a;--muted:#5a7184;--paper:#f5f8fa;--line:#d6e0e7;--red:#c8283c;--green:#2f7d5b;--blue:#2a63b8;--ok:#e7f4ee;--bad:#fbeaec;
  font-family:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--paper);
  max-width:820px;margin:24px auto;padding:20px;border-radius:14px;line-height:1.5;box-sizing:border-box;text-align:left}
.nat *{box-sizing:border-box}
.nat h2{font-size:1.6rem;line-height:1.2;margin:0 0 4px;color:var(--ink);text-transform:none!important;letter-spacing:normal!important}
.nat h3{font-size:1.15rem;margin:0 0 8px;color:var(--ink);text-transform:none!important;letter-spacing:normal!important}
.nat .nat-sub{color:var(--muted);margin:0 0 14px}
.nat .nat-bar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:12px;font-size:.95rem}
.nat .nat-bar b{font-size:1.15rem}
.nat .nat-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px}
.nat button{font:inherit;text-transform:none!important;letter-spacing:normal!important;line-height:1.35!important;box-shadow:none!important;min-height:0!important}
.nat .nat-btn{display:inline-block;padding:11px 20px;border-radius:8px;border:0;font-weight:700;cursor:pointer;background:var(--red);color:#fff;margin:6px 8px 0 0}
.nat .nat-btn.alt{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.nat .nat-btn:disabled{opacity:.45;cursor:not-allowed}
.nat .nat-choices{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 10px}
.nat .nat-choice{padding:10px 15px;border:1.5px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);cursor:pointer}
.nat .nat-choice:hover:not(:disabled){border-color:var(--ink)}
.nat .nat-choice.wide{display:block;width:100%;text-align:left;border-radius:8px}
.nat .nat-choice.right{background:var(--green);border-color:var(--green);color:#fff}
.nat .nat-choice.wrong{background:var(--red);border-color:var(--red);color:#fff}
.nat .nat-choice:disabled{cursor:default}
.nat .nat-fb{margin-top:14px;padding:14px;border-radius:10px}
.nat .nat-fb.ok{background:var(--ok)} .nat .nat-fb.bad{background:var(--bad)}
.nat .nat-fb p{margin:0 0 6px} .nat .nat-fb p:last-child{margin:0}
.nat .nat-fb ul{margin:4px 0 6px;padding-left:20px}
.nat .nat-verdict{font-weight:700;font-size:1.08rem}
.nat .nat-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.nat .nat-tab{padding:8px 13px;border:1.5px solid var(--ink);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;font-size:.92rem}
.nat .nat-tab[aria-selected="true"]{background:var(--ink);color:#fff}
.nat label{display:block;font-weight:700;margin:0 0 4px}
.nat .nat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:12px}
.nat input[type=number],.nat select{width:100%;font:inherit;font-size:1.1rem;padding:9px 11px;border:2px solid var(--ink);border-radius:8px;color:var(--ink);background:#fff;box-shadow:none!important}
.nat .nat-result{font-size:2.2rem;font-weight:700;line-height:1.1;margin:8px 0 2px}
.nat .nat-note{color:var(--muted);font-size:.92rem;margin:0}
.nat button:focus-visible,.nat input:focus-visible,.nat select:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.nat .nat-credit{text-align:center;font-size:.8rem;color:var(--muted);margin:14px 0 0}
.nat .nat-credit a{color:var(--muted)}
.nat .nat-lab{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;border:2px solid var(--ink);border-radius:10px;padding:14px 16px;margin-bottom:12px}
.nat .nat-lab .nm{font-weight:700;font-size:1.1rem}
.nat .nat-lab .vl{font-size:2.2rem;font-weight:700;font-variant-numeric:tabular-nums;line-height:1}
.nat .nat-lab .un{color:var(--muted)}
.nat .nat-strip{width:100%;overflow-x:auto;border:2px solid var(--ink);border-radius:10px;background:#fff6f6;margin-bottom:12px}
.nat .nat-strip svg{display:block;width:100%;min-width:620px;height:auto}
.nat details summary{cursor:pointer;font-weight:700}
@media (max-width:480px){.nat{padding:14px}.nat .nat-result{font-size:1.8rem}}