* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--brand-light-bg);
}

button,
input,
select {
  font: inherit;
}

.sim-readout {
  letter-spacing: 0;
}

.app-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 112px;
  padding: 24px clamp(16px, 4vw, 40px);
}

.app-header h1 {
  color: var(--brand-white);
  font-size: 30px;
  line-height: 1.1;
  margin: 0;
}

.eyebrow {
  color: var(--brand-accent-blue);
  font-size: 12px;
  font-weight: 700;
  margin: 0 0 6px;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.experience-tabs {
  background: #ffffff;
  border-bottom: 1px solid var(--brand-border);
  display: flex;
  gap: 8px;
  padding: 10px clamp(16px, 4vw, 40px);
}

.experience-tabs button {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--brand-muted);
  cursor: pointer;
  font-weight: 900;
  min-height: 38px;
  padding: 8px 14px;
}

.experience-tabs button.active {
  background: var(--brand-primary-blue);
  border-color: var(--brand-primary-blue);
  color: #fff;
}

.top-alarm-banner {
  align-items: center;
  background: #ecfdf5;
  border-bottom: 1px solid #bbf7d0;
  color: #047857;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  min-height: 46px;
  padding: 8px clamp(16px, 4vw, 40px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.case-ribbon {
  align-items: center;
  background: #102a56;
  border-bottom: 1px solid #1d4ed8;
  color: #f8fbff;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  padding: 12px clamp(16px, 4vw, 40px);
}

.case-ribbon span {
  color: #bfdbfe;
  display: block;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.case-ribbon strong {
  display: block;
  font-size: 15px;
  line-height: 1.35;
}

.top-alarm-banner.active {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.top-alarm-banner.silenced {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}

.top-alarm-content {
  align-items: center;
  display: flex;
  gap: 10px;
  min-width: 0;
}

.alarm-state-label {
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0;
  padding: 3px 8px;
  text-transform: uppercase;
}

#topAlarmSummary {
  display: block;
  font-size: 14px;
  line-height: 1.3;
  min-width: 0;
}

.alarm-silence-btn:disabled {
  cursor: default;
  opacity: 0.45;
}

.sim-layout {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(260px, 320px) minmax(420px, 1fr) minmax(260px, 340px);
  padding: 16px;
}

.controls-panel,
.monitor-panel {
  align-self: start;
  max-height: calc(100vh - 190px);
  overflow: auto;
}

.panel-heading,
.screen-toolbar {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-heading h2,
.screen-title h2 {
  font-size: 18px;
  margin: 0;
}

.screen-title p {
  color: var(--brand-muted);
  font-size: 13px;
  margin: 4px 0 0;
}

.status-pill {
  align-items: center;
  background: #edf5ff;
  border: 1px solid var(--brand-border);
  border-radius: 999px;
  color: var(--brand-primary-blue);
  display: inline-flex;
  font-size: 12px;
  font-weight: 700;
  min-height: 28px;
  padding: 4px 10px;
}

.status-pill.ok {
  background: #ecfdf5;
  color: #047857;
}

.status-pill.warn {
  background: #fffbeb;
  color: #b45309;
}

.status-pill.alarm {
  background: #fef2f2;
  color: #b91c1c;
}

.field,
.range-field,
.switch-field {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.field span,
.range-field span,
.switch-field span {
  align-items: center;
  color: var(--brand-text);
  display: flex;
  font-size: 13px;
  font-weight: 700;
  justify-content: space-between;
}

.range-field output {
  color: var(--brand-muted);
  font-weight: 600;
}

.dual-range-field {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.dual-range-heading {
  align-items: center;
  color: var(--brand-text);
  display: flex;
  font-size: 13px;
  font-weight: 700;
  justify-content: space-between;
}

.dual-range-values {
  align-items: center;
  color: var(--brand-muted);
  display: inline-flex;
  font-weight: 700;
  gap: 5px;
}

.dual-range-control {
  --low-percent: 0%;
  --high-percent: 100%;
  height: 26px;
  position: relative;
}

.dual-range-control::before,
.dual-range-control::after {
  border-radius: 999px;
  content: "";
  height: 6px;
  left: 0;
  position: absolute;
  right: 0;
  top: 10px;
}

.dual-range-control::before {
  background: #dbeafe;
}

.dual-range-control::after {
  background: var(--brand-primary-blue);
  left: var(--low-percent);
  right: calc(100% - var(--high-percent));
}

select,
input[type="range"] {
  width: 100%;
}

select {
  background: #fff;
  border: 1px solid var(--brand-border);
  border-radius: 8px;
  color: var(--brand-text);
  min-height: 40px;
  padding: 8px 10px;
}

input[type="range"] {
  accent-color: var(--brand-primary-blue);
}

.dual-range-control input[type="range"] {
  appearance: none;
  background: transparent;
  height: 26px;
  left: 0;
  margin: 0;
  pointer-events: none;
  position: absolute;
  top: 0;
}

.dual-range-control input[type="range"]::-webkit-slider-runnable-track {
  background: transparent;
  border: 0;
  height: 6px;
}

.dual-range-control input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  background: #fff;
  border: 2px solid var(--brand-primary-blue);
  border-radius: 50%;
  box-shadow: 0 1px 4px rgb(15 23 42 / 24%);
  cursor: pointer;
  height: 18px;
  margin-top: -6px;
  pointer-events: auto;
  width: 18px;
}

.dual-range-control input[type="range"]::-moz-range-track {
  background: transparent;
  border: 0;
  height: 6px;
}

.dual-range-control input[type="range"]::-moz-range-thumb {
  background: #fff;
  border: 2px solid var(--brand-primary-blue);
  border-radius: 50%;
  box-shadow: 0 1px 4px rgb(15 23 42 / 24%);
  cursor: pointer;
  height: 16px;
  pointer-events: auto;
  width: 16px;
}

.switch-field {
  align-items: center;
  grid-template-columns: 1fr auto;
}

.switch-field input {
  height: 20px;
  width: 20px;
}

.curriculum-panel {
  border-bottom: 1px solid var(--brand-border);
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 14px;
}

.curriculum-heading h3 {
  color: var(--brand-deep-navy);
  font-size: 13px;
  margin: 0;
  text-transform: uppercase;
}

.case-button {
  align-items: center;
  background: #f8fbff;
  border: 1px solid var(--brand-border);
  border-radius: 8px;
  color: var(--brand-text);
  cursor: pointer;
  display: flex;
  gap: 10px;
  padding: 10px;
  text-align: left;
}

.case-button.active {
  border-color: var(--brand-primary-blue);
  box-shadow: 0 0 0 2px rgb(37 99 235 / 14%);
}

.case-number {
  align-items: center;
  background: var(--brand-primary-blue);
  border-radius: 50%;
  color: #fff;
  display: inline-flex;
  flex: 0 0 auto;
  font-weight: 900;
  height: 28px;
  justify-content: center;
  width: 28px;
}

.case-button strong,
.case-button small {
  display: block;
}

.case-button small {
  color: var(--brand-muted);
  font-size: 12px;
  margin-top: 2px;
}

.case-feedback {
  background: #edf5ff;
  border: 1px solid var(--brand-border);
  border-radius: 8px;
  color: var(--brand-primary-blue);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
  padding: 10px;
}

.backup-mode-box {
  background: #f8fbff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  display: grid;
  gap: 6px;
  margin: 6px 0 12px;
  padding: 12px;
}

.backup-mode-box h4 {
  color: var(--brand-deep-navy);
  font-size: 12px;
  margin: 0 0 4px;
  text-transform: uppercase;
}

.patient-scenario-divider {
  align-items: center;
  background: #eef5ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  color: var(--brand-primary-blue);
  display: flex;
  font-size: 12px;
  font-weight: 900;
  justify-content: center;
  margin: 18px 0 12px;
  min-height: 34px;
  text-transform: uppercase;
}

.patient-scenario-group {
  background: #fbfdff;
  border: 1px solid #dbeafe;
  border-radius: 8px;
  border-top: 1px solid #dbeafe;
  margin-bottom: 12px;
  padding: 14px 12px 2px;
}

.locked-control {
  opacity: 0.48;
}

.locked-control button,
.locked-control input,
.locked-control select {
  cursor: not-allowed;
}

.control-group {
  border-top: 1px solid var(--brand-border);
  padding-top: 14px;
}

.control-group h3,
.alarm-panel h3 {
  color: var(--brand-deep-navy);
  font-size: 13px;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.segmented {
  background: #eef5ff;
  border: 1px solid var(--brand-border);
  border-radius: 8px;
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(4, 1fr);
  padding: 4px;
}

.segmented button {
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--brand-muted);
  cursor: pointer;
  font-weight: 800;
  min-height: 34px;
}

.segmented button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.control-tabs {
  grid-template-columns: repeat(2, 1fr);
  margin-bottom: 14px;
}

.segmented button.active {
  background: var(--brand-primary-blue);
  color: white;
}

.hidden {
  display: none;
}

.waveform-column {
  min-width: 0;
}

.waveform-screen {
  height: calc(100vh - 260px);
  min-height: 460px;
  position: relative;
}

#waveformCanvas {
  height: 100%;
  cursor: default;
}

#waveformCanvas.is-paused {
  cursor: crosshair;
}

.case-answer-overlay {
  align-items: center;
  background: rgb(7 13 24 / 46%);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 22px;
  position: absolute;
  z-index: 8;
}

.case-answer-overlay.hidden {
  display: none;
}

.case-answer-card {
  background: rgb(248 251 255 / 92%);
  border: 1px solid rgb(191 219 254 / 74%);
  border-radius: 8px;
  box-shadow: 0 20px 60px rgb(15 23 42 / 30%);
  color: var(--brand-text);
  max-width: 680px;
  padding: 18px;
}

.case-answer-card p {
  font-size: 14px;
  line-height: 1.45;
  margin: 12px 0;
}

.case-answer-status {
  align-items: center;
  display: flex;
  font-size: 18px;
  font-weight: 900;
  gap: 8px;
}

.case-answer-status::before {
  align-items: center;
  border-radius: 50%;
  display: inline-flex;
  flex: 0 0 auto;
  height: 26px;
  justify-content: center;
  width: 26px;
}

.case-answer-status.correct {
  color: #047857;
}

.case-answer-status.correct::before {
  background: #dcfce7;
  content: "✓";
}

.case-answer-status.needs-work {
  color: #b45309;
}

.case-answer-status.needs-work::before {
  background: #fef3c7;
  content: "!";
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.legend span {
  align-items: center;
  color: var(--brand-muted);
  display: inline-flex;
  font-size: 13px;
  font-weight: 700;
  gap: 6px;
}

.legend span::before {
  border-radius: 999px;
  content: "";
  display: inline-block;
  height: 9px;
  width: 9px;
}

.legend .pressure::before {
  background: var(--trace-pressure);
}

.legend .flow::before {
  background: var(--trace-flow);
}

.legend .volume::before {
  background: var(--trace-volume);
}

.maneuver-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  padding-top: 14px;
}

.readout-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.readout {
  background: #f8fbff;
  border: 1px solid var(--brand-border);
  border-radius: 8px;
  min-height: 92px;
  padding: 12px;
}

.readout span {
  color: var(--brand-muted);
  display: block;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 8px;
}

.readout strong {
  color: var(--brand-deep-navy);
  display: block;
  font-family: var(--font-heading);
  font-size: 26px;
  line-height: 1;
}

.readout small {
  color: var(--brand-muted);
  display: block;
  font-size: 12px;
  margin-top: 6px;
}

.hold-readout strong {
  color: var(--brand-primary-blue);
  font-size: 22px;
}

.alarm-panel {
  border-top: 1px solid var(--brand-border);
  margin-top: 16px;
  padding-top: 16px;
}

#alarmList {
  display: grid;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

#alarmList li {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  color: #b91c1c;
  font-size: 13px;
  font-weight: 700;
  padding: 9px 10px;
}

#alarmList li.quiet {
  background: #ecfdf5;
  border-color: #bbf7d0;
  color: #047857;
}

.sim-disclaimer {
  border-top: 1px solid var(--brand-border);
  margin: 16px 0 0;
  padding-top: 12px;
}

@media (max-width: 1180px) {
  .sim-layout {
    grid-template-columns: minmax(240px, 300px) minmax(420px, 1fr);
  }

  .monitor-panel {
    grid-column: 1 / -1;
    max-height: none;
  }

  .readout-grid {
    grid-template-columns: repeat(5, minmax(120px, 1fr));
  }
}

@media (max-width: 820px) {
  .app-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    justify-content: flex-start;
  }

  .case-ribbon,
  .experience-tabs {
    align-items: stretch;
    flex-direction: column;
  }

  .sim-layout {
    grid-template-columns: 1fr;
  }

  .controls-panel,
  .monitor-panel {
    max-height: none;
  }

  .waveform-screen {
    height: 520px;
  }

  .readout-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .sim-layout {
    padding: 10px;
  }

  .app-header {
    padding: 18px 14px;
  }

  .app-header h1 {
    font-size: 24px;
  }

  .screen-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .legend {
    justify-content: flex-start;
  }

  .waveform-screen {
    min-height: 420px;
  }

  .readout strong {
    font-size: 22px;
  }
}