* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font: 400 14px/1.45 var(--sans);
  -webkit-font-smoothing: antialiased;
}

body {
  height: 100vh;
  min-height: 700px;
  display: flex;
  flex-direction: column;
}

button, select, input { font: inherit; color: inherit; }
a { color: var(--muted); text-underline-offset: 3px; }
a:hover { color: var(--text); }
[hidden] { display: none !important; }

.eyebrow {
  font: 500 10.5px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}
.keep-case { text-transform: none; letter-spacing: 0.02em; }
.hint { color: var(--faint); font: 400 11.5px/1.2 var(--mono); }
.spacer { flex: 1; }

/* Buttons: hairline, square-ish, no fills except the primary action. */
button {
  cursor: pointer;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  border-radius: 3px;
  padding: 7px 12px;
  line-height: 1;
  font-size: 13px;
}
button:hover { border-color: var(--text); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.ghost { background: var(--panel); }
button.primary { background: var(--text); color: #fff; border-color: var(--text); font-weight: 500; }
button.danger { color: var(--alarm); }
:focus-visible { outline: 2px solid var(--breath); outline-offset: 2px; }

.segmented { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 3px; overflow: hidden; }
.segmented button { border: 0; border-radius: 0; background: var(--panel); color: var(--muted); padding: 7px 12px; }
.segmented button + button { border-left: 1px solid var(--line-strong); }
.segmented button[aria-pressed="true"] { background: var(--text); color: #fff; }
.segmented.small button { padding: 5px 8px; font: 400 11.5px/1 var(--mono); }

.select { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.select select { background: var(--panel); border: 1px solid var(--line-strong); border-radius: 3px; padding: 6px 8px; }

/* Header */
.top {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 22px;
  background: var(--panel);
  border-bottom: 1px solid var(--line-strong);
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.brand .word { display: flex; flex-direction: column; gap: 4px; }
.brand .word b { font: 600 20px/1 var(--serif); letter-spacing: -0.005em; }
.brand .word small { font: 400 11px/1 var(--mono); color: var(--faint); }
.source { display: inline-flex; align-items: center; gap: 10px; padding-left: 18px; border-left: 1px solid var(--line); }
.controls { display: inline-flex; align-items: center; gap: 8px; }

.status { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font: 400 12px/1 var(--mono); white-space: nowrap; }
.top button, .brand .word small { white-space: nowrap; }
@media (max-width: 1320px) { .brand .word small { display: none; } .source .eyebrow { display: none; } }
.status .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); }
.status[data-state="live"] .dot { background: var(--pulse); }
.status[data-state="error"] .dot { background: var(--alarm); }
.status[data-state="error"] { color: var(--alarm); }

.meta, .patient { display: inline-flex; flex-direction: column; align-items: flex-start; gap: 5px; }
.meta #elapsed { font: 500 15px/1 var(--mono); font-variant-numeric: tabular-nums; }
.patient { text-align: left; padding: 6px 12px; min-width: 150px; }
.patient #patient-name { font-size: 13.5px; }

/* Alarm strip: one ruled row; colour only when something is wrong. */
.alarms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 14px 22px 0;
  background: var(--panel);
  border: 1px solid var(--line-strong);
}
.alarm {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  min-height: 42px;
  border-left: 4px solid var(--line);
}
.alarm + .alarm { box-shadow: inset 1px 0 0 var(--line); }
.alarm .alarm-text { font: 500 13px/1 var(--mono); color: var(--faint); }
.alarm[data-level="ok"] { border-left-color: var(--pulse); }
.alarm[data-level="ok"] .alarm-text { color: var(--text); }
.alarm[data-level="warning"] { border-left-color: var(--warn); background: #fdf6ea; }
.alarm[data-level="warning"] .alarm-text, .alarm[data-level="warning"] .eyebrow { color: #8a5a12; }
.alarm[data-level="alarm"] { border-left-color: var(--alarm); background: var(--alarm); animation: flash 1s steps(2, jump-none) infinite; }
.alarm[data-level="alarm"] .eyebrow, .alarm[data-level="alarm"] .alarm-text { color: #fff; }
@keyframes flash { 50% { background: #a52424; } }
@media (prefers-reduced-motion: reduce) { .alarm[data-level="alarm"] { animation: none; } }

/* Layout: figure panels */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  grid-template-rows: minmax(0, 1fr) minmax(0, 1fr) minmax(170px, 0.85fr);
  min-height: 0;
  gap: 14px;
  padding: 14px 22px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  min-width: 0;
}
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 11px 14px 9px; border-bottom: 1px solid var(--line);
}
.title { font: 600 15px/1.2 var(--serif); }
.title.sub { font-size: 14px; }
.tag {
  display: inline-block; margin-right: 9px; font: 600 13px/1 var(--sans); font-style: normal;
  color: var(--text);
}

.channel { display: grid; grid-template-columns: minmax(0, 1fr) 220px; }
.trace { display: flex; flex-direction: column; min-width: 0; }
/* The canvas is positioned so its pixel size never feeds back into the layout. */
.canvas-box { position: relative; flex: 1; min-height: 0; }
.canvas-box canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.trend { display: flex; flex-direction: column; }
.trend .canvas-box { margin: 4px 4px 2px; }

.vitals { border-left: 1px solid var(--line); display: flex; flex-direction: column; }
.vital { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 10px; padding: 12px 18px; border-left: 3px solid transparent; }
.vital + .vital { border-top: 1px solid var(--line); }
.vital .value { display: flex; align-items: baseline; gap: 7px; }
.vital b { font: 300 58px/0.9 var(--sans); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; color: var(--text); }
.vital.small b { font-size: 34px; }
.vital small { color: var(--faint); font: 400 12px/1 var(--mono); }
.breath #vital-rr b { color: var(--breath); }
.pulse #vital-hr b { color: var(--pulse); }
.pulse .vital.spo2 b { color: var(--spo2); }
.vital[data-level="warning"] { background: #fdf6ea; border-left-color: var(--warn); }
.vital[data-level="warning"] b { color: #8a5a12 !important; }
.vital[data-level="alarm"] { background: #fbeceb; border-left-color: var(--alarm); }
.vital[data-level="alarm"] b { color: var(--alarm) !important; }

/* Side panel: tables */
.side { grid-column: 2; grid-row: 1 / span 3; display: flex; flex-direction: column; min-height: 0; }
table { border-collapse: collapse; width: 100%; }
.stats { margin: 4px 0 6px; }
.stats th, .stats td { padding: 11px 14px; border-bottom: 1px solid var(--line); text-align: left; }
.stats th { font-weight: 400; color: var(--muted); font-size: 13px; }
.stats td { text-align: right; white-space: nowrap; }
.stats td b { font: 400 22px/1 var(--sans); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.stats td small { display: inline-block; width: 30px; margin-left: 6px; text-align: left; font: 400 11px/1 var(--mono); color: var(--faint); }
.episodes-head { border-top: 1px solid var(--line); margin-top: 8px; }
.episodes-box { flex: 1; min-height: 0; overflow: auto; }
.episodes { font: 400 12px/1.3 var(--mono); font-variant-numeric: tabular-nums; }
.episodes th { position: sticky; top: 0; background: var(--raised); text-align: right; font-weight: 500; color: var(--faint); font-size: 10.5px; letter-spacing: 0.04em; padding: 7px 10px; border-bottom: 1px solid var(--line); }
.episodes td { text-align: right; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.episodes th:first-child, .episodes td:first-child { text-align: left; padding-left: 14px; }
.episodes td:first-child { color: var(--alarm); }
.empty { color: var(--faint); font-size: 12.5px; padding: 10px 14px; margin: 0; }
.export { display: flex; gap: 8px; padding: 12px 14px 14px; border-top: 1px solid var(--line); }
.export button { flex: 1; }

.foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 0 22px 14px;
  color: var(--faint);
  font: 400 11.5px/1.4 var(--mono);
}

/* Patient dialog */
dialog {
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: var(--panel);
  color: var(--text);
  padding: 0;
  width: min(760px, calc(100vw - 32px));
  box-shadow: 0 24px 60px -30px rgb(17 24 39 / 0.45);
}
dialog::backdrop { background: rgb(17 24 39 / 0.35); }
.dialog > header { padding: 20px 22px 14px; border-bottom: 1px solid var(--line); }
.dialog h2 { margin: 0 0 6px; font: 600 20px/1.2 var(--serif); }
.dialog p { margin: 0; color: var(--muted); }
.dialog-body { display: grid; grid-template-columns: 220px 1fr; gap: 20px; padding: 18px 22px; }
.patient-list ul { list-style: none; margin: 10px 0; padding: 0; display: flex; flex-direction: column; gap: 2px; max-height: 300px; overflow: auto; }
.patient-list li button { width: 100%; text-align: left; border-color: transparent; padding: 9px 10px; }
.patient-list li button[aria-pressed="true"] { background: var(--raised); border-color: var(--line-strong); }
.patient-list li small { display: block; color: var(--faint); font: 400 11px/1.4 var(--mono); margin-top: 3px; }
.patient-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-content: start; }
.patient-fields label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; }
.patient-fields input { background: var(--panel); border: 1px solid var(--line-strong); border-radius: 3px; padding: 9px 10px; }
.dialog > footer { display: flex; align-items: center; gap: 8px; padding: 14px 22px 18px; border-top: 1px solid var(--line); }

@media (max-width: 1100px) {
  body { height: auto; }
  .layout { grid-template-columns: minmax(0, 1fr); grid-template-rows: 240px 240px 210px auto; }
  .side { grid-column: 1; grid-row: auto; }
  .top { flex-wrap: wrap; }
}
@media (max-width: 720px) {
  .channel .hint, .source .eyebrow { display: none; }
  .source { border-left: 0; padding-left: 0; }
  .alarms { grid-template-columns: 1fr; }
  .alarm + .alarm { box-shadow: inset 0 1px 0 var(--line); }
  .channel { grid-template-columns: 1fr; grid-template-rows: 200px auto; }
  .vitals { border-left: 0; border-top: 1px solid var(--line); flex-direction: row; }
  .vital + .vital { border-top: 0; border-left: 1px solid var(--line); }
  .vital b { font-size: 42px; }
  .layout { grid-template-rows: auto auto 210px auto; }
  .dialog-body { grid-template-columns: 1fr; }
  .foot { flex-direction: column; }
}