/* ── Widget oxymètre BLE (Respiration + Tables CO2/O2) ── */

.oximeter-live {
  margin: 0.75rem 0 0.85rem;
  padding: 0.75rem 0.8rem 0.7rem;
  background: var(--tool-surface-2);
  border: 1px solid var(--tool-violet-soft);
  border-radius: 12px;
}

.oximeter-live [hidden] {
  display: none !important;
}

.oximeter-unsupported,
.oximeter-disclaimer,
.oximeter-status {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--muted);
}

.oximeter-disclaimer {
  margin-top: 0.45rem;
}

.oximeter-connect-panel {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.2rem;
}

.oximeter-btn {
  min-height: 44px;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--tool-border-2);
  background: var(--tool-surface-1);
  color: var(--deep);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.oximeter-btn:hover:not(:disabled) {
  border-color: var(--tool-violet-soft);
  color: var(--tool-violet-text);
}

.oximeter-btn:focus {
  outline: none;
}

.oximeter-btn:focus-visible {
  outline: 3px solid var(--tool-violet-text);
  outline-offset: 2px;
}

.oximeter-btn:disabled {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.oximeter-btn-connect {
  background: var(--tool-violet-gradient);
  border-color: var(--tool-violet-soft);
  color: var(--tool-violet-btn-text);
}

.oximeter-btn-disconnect {
  width: 100%;
  margin-top: 0.45rem;
}

.oximeter-metrics-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}

.oximeter-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  min-height: 88px;
  padding: 0.55rem 0.4rem 0.5rem;
  background: var(--tool-surface-1);
  border: 1px solid var(--tool-border-2);
  border-radius: 10px;
  text-align: center;
}

.oximeter-metric-icon {
  width: 22px;
  height: 22px;
  color: var(--tool-violet-text);
}

.oximeter-metric-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.oximeter-metric-value {
  font-family: 'Syne', sans-serif;
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--tool-violet-text);
}

.oximeter-metric-unit {
  font-size: 0.7rem;
  color: var(--muted);
}

.oximeter-status {
  margin-top: 0.5rem;
  text-align: center;
}

.oximeter-live[data-oximeter-status="finger-off"] .oximeter-metric-value,
.oximeter-live[data-oximeter-status="connecting"] .oximeter-metric-value,
.oximeter-live[data-oximeter-status="requesting"] .oximeter-metric-value {
  opacity: 0.55;
}

.oximeter-chart {
  margin-top: 0.7rem;
}

.oximeter-chart-title {
  margin: 0 0 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
}

.oximeter-chart-legend {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 0 0 0.35rem;
  padding: 0;
  list-style: none;
  font-size: 0.72rem;
  color: var(--deep);
}

.oximeter-chart-legend li {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.oximeter-chart-swatch {
  display: inline-block;
  width: 18px;
  height: 0;
  border-top-width: 3px;
  border-top-style: solid;
}

.oximeter-chart-swatch-spo2 {
  border-top-color: #2ec4b6;
}

.oximeter-chart-swatch-pulse {
  border-top-color: var(--tool-violet-text);
  border-top-style: dashed;
}

.oximeter-chart-svg {
  display: block;
  width: 100%;
  height: 88px;
  background: var(--tool-surface-1);
  border: 1px solid var(--tool-border-2);
  border-radius: 8px;
}

.oximeter-chart-grid {
  stroke: var(--tool-border-2);
  stroke-width: 1;
}

.oximeter-chart-line {
  fill: none;
  stroke-width: 2.2;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.oximeter-chart-line-spo2 {
  stroke: #2ec4b6;
}

.oximeter-chart-line-pulse {
  stroke: var(--tool-violet-text);
  stroke-dasharray: 5 4;
}

.oximeter-chart-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 0.2rem;
  font-size: 0.65rem;
  color: var(--muted);
}

.oximeter-chart-empty {
  margin: 0.35rem 0 0;
  font-size: 0.7rem;
  line-height: 1.45;
  color: var(--muted);
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .oximeter-btn,
  .oximeter-metric-value {
    transition: none;
  }
}