:root {
  --bg: #f5f6f8; --card: #fff; --ink: #1d2330; --muted: #667085; --line: #e3e6eb;
  --brand: #0f6e6e; --brand-ink: #fff;
  --critical: #c62828; --critical-bg: #fdecec;
  --urgent: #b45309; --urgent-bg: #fff4e0;
  --elevated: #8a6d00; --elevated-bg: #fff9db;
  --normal: #3f6e4f; --normal-bg: #eaf5ee;
  --s1: #2f5fb3; --s2: #8a4fb8;
  --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 24px; margin: 0 0 4px; }
h2 { font-size: 18px; margin: 28px 0 10px; }
h3 { font-size: 14px; margin: 0 0 6px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
main { max-width: 1180px; margin: 0 auto; padding: 22px 20px 60px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.empty { color: var(--muted); }

.demo-banner { background: #243045; color: #e7ecf5; font-size: 12px; text-align: center; padding: 4px; letter-spacing: .02em; }
.topbar { display: flex; align-items: center; gap: 24px; background: var(--card); border-bottom: 1px solid var(--line); padding: 10px 20px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 17px; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.logo { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: var(--brand); color: var(--brand-ink); font-size: 15px; }
.topbar nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.topbar nav a { padding: 7px 12px; border-radius: 8px; color: var(--ink); font-weight: 500; }
.topbar nav a.active { background: #e6f1f1; color: var(--brand); }
.topbar nav a:hover { text-decoration: none; background: #f0f2f5; }
.badge { display: inline-block; min-width: 22px; padding: 1px 7px; border-radius: 11px; font-size: 12px; font-weight: 700; color: #fff; text-align: center; }
.badge-critical { background: var(--critical); } .badge-urgent { background: var(--urgent); }
.who { display: flex; align-items: center; gap: 12px; margin: 0; font-size: 13px; line-height: 1.2; }
button.link { background: none; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; cursor: pointer; color: var(--ink); font: inherit; }

.page-head { margin-bottom: 16px; }
.page-head p { margin: 4px 0 0; max-width: 760px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 10px 0 14px; flex-wrap: wrap; }
.tabs { display: flex; gap: 2px; background: #e9ecf0; padding: 3px; border-radius: 9px; }
.tab { padding: 6px 14px; border-radius: 7px; color: var(--ink); font-weight: 500; }
.tab.active { background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.08); }
.tab:hover { text-decoration: none; }
.chips { display: flex; gap: 6px; }
.chip { border: 1px solid var(--line); background: #fff; padding: 4px 11px; border-radius: 16px; color: var(--ink); font-size: 13px; }
.chip.active { border-color: var(--brand); background: #e6f1f1; color: var(--brand); }
.chip:hover { text-decoration: none; }
.flash { background: var(--normal-bg); color: var(--normal); border: 1px solid #cfe6d7; padding: 9px 14px; border-radius: 8px; margin-bottom: 10px; }

.pill { display: inline-block; padding: 2px 9px; border-radius: 12px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.pill.sev-critical { background: var(--critical); color: #fff; }
.pill.sev-urgent { background: var(--urgent-bg); color: var(--urgent); border: 1px solid #f2d3a6; }
.pill.sev-elevated { background: var(--elevated-bg); color: var(--elevated); }
.pill.sev-normal { background: var(--normal-bg); color: var(--normal); }
.flag { display: inline-block; background: #f1f3f6; border-radius: 6px; padding: 1px 7px; font-size: 12.5px; margin-right: 6px; }
.tag { display: inline-block; background: #eef2f7; border-radius: 6px; padding: 2px 9px; font-size: 13px; margin-right: 4px; }

.alert-list { display: flex; flex-direction: column; gap: 8px; }
.alert { display: grid; grid-template-columns: 110px 1fr 340px; gap: 14px; align-items: center; background: var(--card); border: 1px solid var(--line); border-left: 5px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.alert > * { min-width: 0; }
.alert.done { opacity: .85; grid-template-columns: 110px 1fr; }
.sev-border-critical { border-left-color: var(--critical) !important; }
.sev-border-urgent { border-left-color: var(--urgent) !important; }
.sev-border-elevated { border-left-color: #e0c341 !important; }
.alert-sev { display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }
.alert-sev small { color: var(--muted); }
.alert-patient a { font-weight: 700; font-size: 15.5px; margin-right: 8px; }
.alert-patient .muted { font-size: 13px; }
.alert-reading { margin: 3px 0; font-size: 15px; }
.alert-meta { font-size: 12.5px; }
.ack-info { margin-top: 5px; font-size: 13px; color: var(--normal); }
.ack { display: flex; gap: 6px; }
.ack input { flex: 1; min-width: 0; border: 1px solid var(--line); border-radius: 8px; padding: 7px 9px; font: inherit; font-size: 13px; }
.btn { background: var(--brand); color: #fff; border: 0; border-radius: 8px; padding: 8px 13px; font: inherit; font-weight: 600; font-size: 13.5px; cursor: pointer; white-space: nowrap; }
.btn:hover { background: #0b5858; }
.btn-quiet { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn-quiet:hover { background: #f0f2f5; }

.table-wrap { padding: 0; overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; padding: 10px 14px; border-bottom: 1px solid var(--line); background: #fafbfc; }
.table td { padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 14px; }
.table tr:last-child td { border-bottom: 0; }

.strip { display: inline-flex; gap: 2px; margin-top: 5px; }
.day { display: inline-block; width: 7px; height: 14px; border-radius: 2px; background: #e4e7ec; }
.day.hit { background: var(--brand); }
.count b { font-size: 16px; }
.count-ok, .state-ok { color: var(--normal); } .count-risk, .state-risk { color: var(--critical); } .count-track, .state-track { color: var(--urgent); }
.state { font-size: 13px; font-weight: 600; }
.stats { display: flex; gap: 10px; }
.stat { display: flex; flex-direction: column; padding: 8px 18px; min-width: 130px; }
.stat b { font-size: 24px; } .stat span { font-size: 13px; color: var(--muted); }
.asof { font-size: 14px; display: flex; gap: 6px; align-items: center; }
.asof input { border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; font: inherit; }

.back { display: inline-block; margin-bottom: 10px; font-size: 14px; }
.patient-head { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.patient-head p { margin: 4px 0; }
.head-stat { display: flex; flex-direction: column; gap: 3px; align-items: flex-start; }
.stat-label { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
.latest { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-top: 12px; }
.mini { border-left: 5px solid var(--line); padding: 10px 14px; }
.mini-val { font-size: 16px; font-weight: 600; margin: 2px 0; }
.section-head { display: flex; justify-content: space-between; align-items: center; }
.section-head h2 { margin-bottom: 10px; }
.chart-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(480px, 1fr)); gap: 12px; }

.chart svg { width: 100%; height: auto; display: block; }
.chart .grid { stroke: #eef0f3; stroke-width: 1; }
.chart .axis { fill: #8a93a3; font-size: 11px; }
.chart .th { stroke-width: 1.3; stroke-dasharray: 5 4; }
.chart .th-urgent { stroke: var(--urgent); fill: var(--urgent); }
.chart .th-critical { stroke: var(--critical); fill: var(--critical); }
.chart .th-label { font-size: 11px; font-weight: 600; stroke: none; }
.chart .line { fill: none; stroke-width: 1.6; opacity: .55; }
.chart .line.s1 { stroke: var(--s1); } .chart .line.s2 { stroke: var(--s2); }
.chart .pt { stroke-width: 1.5; fill: #fff; }
.chart .pt.s1 { stroke: var(--s1); } .chart .pt.s2 { stroke: var(--s2); }
.chart .pt.sev-normal.s1, .chart .pt.sev-elevated.s1 { fill: var(--s1); }
.chart .pt.sev-normal.s2, .chart .pt.sev-elevated.s2 { fill: var(--s2); }
.chart .pt.sev-urgent { fill: #fff; stroke: var(--urgent); stroke-width: 2.5; }
.chart .pt.sev-critical { fill: var(--critical); stroke: var(--critical); }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.legend-item { display: inline-flex; align-items: center; gap: 5px; }
.swatch { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.swatch.s1 { background: var(--s1); } .swatch.s2 { background: var(--s2); }
.dash { width: 16px; height: 0; border-top: 2px dashed; display: inline-block; }
.dash.th-urgent { border-color: var(--urgent); } .dash.th-critical { border-color: var(--critical); }
.legend-unit { margin-left: auto; }

.login { max-width: 520px; margin: 50px auto; }
.user-pick { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.user-btn { text-align: left; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; cursor: pointer; font: inherit; display: flex; flex-direction: column; gap: 2px; }
.user-btn:hover { border-color: var(--brand); background: #f3f9f9; }
.user-btn span { color: var(--muted); font-size: 13px; }

details.more { margin-top: 8px; }
details.more summary { cursor: pointer; color: var(--brand); font-weight: 600; padding: 6px 0; }
details.more .alert-list { margin-top: 8px; }

@media (max-width: 900px) {
  .topbar { gap: 10px; }
  .topbar nav { order: 3; flex-basis: 100%; }
  .who { margin-left: auto; }
  main { padding: 16px 14px 40px; }
  .stats { flex-wrap: wrap; }
  .alert { grid-template-columns: 1fr; }
  .chart-grid { grid-template-columns: 1fr; }
}

/* ---- sign-in, account setup, staff accounts ---- */
.stack { display: flex; flex-direction: column; gap: 12px; margin-top: 14px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 13.5px; font-weight: 600; }
.field input, .field select, .inline select { border: 1px solid var(--line); border-radius: 8px; padding: 9px 10px; font: inherit; font-weight: 400; background: #fff; }
.field input:focus, .field select:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
.form-error { background: #fdecec; color: #9b1c1c; border: 1px solid #f5c2c2; padding: 9px 14px; border-radius: 8px; margin: 10px 0; }
.small { font-size: 13px; }
.demo-login { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 12px; }
.demo-login summary { cursor: pointer; color: var(--muted); font-size: 13.5px; }
.steps { padding-left: 20px; line-height: 1.5; }
.steps li { margin-bottom: 10px; }
.qr { width: 190px; height: 190px; margin: 10px 0 6px; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 6px; }
.qr svg { width: 100%; height: 100%; display: block; }
.key { font-family: ui-monospace, Menlo, Consolas, monospace; background: #f0f2f5; padding: 2px 6px; border-radius: 6px; word-break: break-all; }
.add-user { margin-bottom: 14px; }
.add-user h2 { margin-top: 0; font-size: 16px; }
.add-user .row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.add-user .row .field { flex: 1; min-width: 160px; }
.inline { display: inline-flex; gap: 6px; align-items: center; margin: 2px 0; }
.actions { white-space: nowrap; }
.btn-danger { background: #fff; color: #b42318; border: 1px solid #f5c2c2; }
.btn-danger:hover { background: #fdecec; }
.link-box p { margin: 0 0 8px; }
.link-box .copy { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font: inherit; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12.5px; background: #fff; color: var(--ink); }

/* ---- enrollment: add / edit patient, devices ---- */
.head-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.tag-paused { background: var(--urgent-bg); color: var(--urgent); font-weight: 600; margin-left: 8px; vertical-align: middle; }
.tag-discharged { background: #eceff3; color: var(--muted); font-weight: 600; margin-left: 8px; vertical-align: middle; }
h1 .tag { font-size: 13px; }
.flash-warn { background: var(--urgent-bg); color: var(--urgent); border-color: #f2d3a6; }
.form-error ul { margin: 6px 0 0; padding-left: 20px; }
.patient-form { max-width: 860px; }
.patient-form fieldset { border: 0; padding: 0; margin: 0 0 18px; }
.patient-form legend { font-size: 13px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; margin-bottom: 8px; }
.patient-form .grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px 16px; }
.field small { font-weight: 400; font-size: 12.5px; }
.field.invalid input, .field.invalid select { border-color: #e08080; background: #fffafa; }
.field-error { color: #9b1c1c; }
.form-actions { display: flex; gap: 8px; }
.assign-device { margin-top: 10px; }
.assign-device p { margin: 8px 0 0; }
.table tr.past td { color: var(--muted); }

/* Live updates: shown when new data arrives while someone is typing on the page. */
.live-note { position: fixed; right: 16px; bottom: 16px; z-index: 10; display: flex; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--brand); border-radius: var(--radius);
  padding: 10px 14px; box-shadow: 0 4px 16px rgba(0,0,0,.12); }
.live-note[hidden] { display: none; }