/* ============================================================
   Per-mode styling for chart-mode components.
   The chart-wrap supplies the container; each mode renders its
   own DOM inside `#chart` (the active mode's host).
   ============================================================ */

#chart, .chart-host {
  position: relative;
  height: 100%;
  width: 100%;
}

/* ----- Bar mode -------------------------------------------- */
.mode-bar {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: stretch;
  justify-content: space-around;
  gap: 24px;
  padding: 28px 32px 36px;
  box-sizing: border-box;
}
.cbar { flex: 1 1 0; display: flex; flex-direction: column; align-items: center; min-width: 0; }
.cbar__col {
  flex: 1 1 auto;
  width: 100%; max-width: 110px;
  display: flex; flex-direction: column;
  justify-content: flex-end; align-items: center;
  position: relative; min-height: 0;
}
.cbar__value {
  font: 500 14px/1 'JetBrains Mono', ui-monospace, Menlo, monospace;
  color: white; margin-bottom: 8px;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.cbar__fill {
  width: 100%;
  background: var(--cbar-color, var(--kw-orange));
  border-radius: 8px 8px 0 0;
  height: 0%; min-height: 3px; flex: 0 0 auto;
  transition: height 400ms linear;
}
.cbar__name {
  text-align: center; font-size: 12px; font-weight: 500;
  color: var(--kw-text-muted); margin-top: 10px;
}

/* ----- Gauge mode ------------------------------------------ */
.mode-gauge {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: space-around;
  padding: 12px 24px; box-sizing: border-box; gap: 16px;
}
.gauge { flex: 1 1 0; display: flex; flex-direction: column; align-items: center; min-width: 0; max-width: 360px; }
.gauge__svg { width: 100%; max-width: 280px; height: auto; }
.gauge__name {
  text-align: center; font-size: 12px; font-weight: 500;
  color: var(--kw-text-muted); margin-top: 4px;
}

/* ----- Big number mode ------------------------------------- */
.mode-big {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: space-around;
  padding: 24px 32px; box-sizing: border-box; gap: 24px;
}
.big { flex: 1 1 0; display: flex; flex-direction: column; align-items: center; min-width: 0; }
.big__name {
  font-size: 12px; font-weight: 500; letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--kw-text-muted); margin-bottom: 8px;
}
.big__row { display: flex; align-items: baseline; gap: 6px; }
.big__value {
  font: 700 56px/1 Roboto, sans-serif;
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
}
.big__unit {
  font: 400 14px/1 'JetBrains Mono', ui-monospace, Menlo, monospace;
  color: var(--kw-text-muted);
}
.big__spark {
  margin-top: 14px; width: 80%; max-width: 240px; height: 48px;
}

/* ----- UV dial --------------------------------------------- */
.mode-uvdial {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 18px;
}
.uvdial__svg { width: 100%; max-width: 360px; height: auto; }
.uvdial__band {
  margin-top: 4px;
  font: 600 18px/1 Roboto, sans-serif;
  text-transform: uppercase; letter-spacing: 1.5px;
}
.uvdial__desc {
  margin-top: 4px;
  font-size: 13px; color: var(--kw-text-muted);
  text-align: center; max-width: 320px;
}

/* ----- VOC traffic light ----------------------------------- */
.mode-voclight {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 14px; padding: 20px;
}
.voclight__chip {
  position: relative;
  width: 96px; height: 96px;
  display: flex; align-items: center; justify-content: center;
}
.voclight__halo {
  position: absolute; inset: 0;
  border-radius: 50%;
  background: var(--vl-color, #666);
  opacity: 0.18;
  animation: voclightPulse 2s ease-in-out infinite;
}
.voclight__core {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--vl-color, #666);
  box-shadow: 0 0 24px var(--vl-color, #666);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
@keyframes voclightPulse {
  0%, 100% { transform: scale(1); opacity: 0.18; }
  50%      { transform: scale(1.12); opacity: 0.28; }
}
.voclight__band {
  font: 600 20px/1 Roboto, sans-serif;
  text-transform: uppercase; letter-spacing: 1.5px;
}
.voclight__row {
  display: flex; align-items: baseline; gap: 6px;
  font: 500 14px/1 'JetBrains Mono', ui-monospace, Menlo, monospace;
  color: white;
}
.voclight__value { font-size: 18px; font-weight: 700; }
.voclight__unit { color: var(--kw-text-muted); }
.voclight__desc {
  font-size: 13px; color: var(--kw-text-muted);
  text-align: center; max-width: 280px;
}

/* ----- Pulse mode ------------------------------------------ */
.mode-pulse {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
}
.pulse__heart {
  width: 140px; height: auto;
  filter: drop-shadow(0 0 18px var(--pulse-color, #FFCBE1));
  transform-origin: center;
  animation: pulseBeat 1s ease-in-out infinite;
  animation-play-state: paused;
}
@keyframes pulseBeat {
  0%, 60%, 100% { transform: scale(1); }
  30%           { transform: scale(1.18); }
}
.pulse__row {
  display: flex; align-items: baseline; gap: 6px;
  font-family: Roboto, sans-serif;
}
.pulse__bpm {
  font-size: 48px; font-weight: 700; color: white;
  font-variant-numeric: tabular-nums; letter-spacing: -1px;
}
.pulse__unit { font-size: 14px; color: var(--kw-text-muted); }
.pulse__band {
  font: 500 13px/1 Roboto, sans-serif; letter-spacing: 0.5px;
  color: var(--kw-text-muted); text-transform: uppercase;
}

/* ----- Comfort zone ---------------------------------------- */
.mode-comfort {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 16px; gap: 8px;
}
.comfort__svg { width: 100%; max-width: 460px; height: auto; }