.bt-usage-card {
  --bt-usage-color: #fe3e25;
  --bt-usage-track: #e5e7eb;
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  background: #fff;
  color: #111827;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.07);
}

.bt-usage-card[data-usage-level="watch"] {
  --bt-usage-color: #d97706;
}

.bt-usage-card[data-usage-level="low"],
.bt-usage-card[data-usage-level="empty"] {
  --bt-usage-color: #b91c1c;
}

.bt-usage-card__head,
.bt-usage-card__details,
.bt-usage-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.bt-usage-card__eyebrow {
  margin: 0 0 3px;
  color: #6b7280;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bt-usage-card__title {
  margin: 0;
  color: #111827;
  font-size: clamp(1.05rem, 2.4vw, 1.32rem);
  line-height: 1.2;
}

.bt-usage-card__percent {
  color: var(--bt-usage-color);
  font-size: 1.05rem;
  font-weight: 900;
  white-space: nowrap;
}

.bt-usage-card__track {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--bt-usage-track);
}

.bt-usage-card__fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--bt-usage-color);
  transition: width 240ms ease;
}

.bt-usage-card__summary,
.bt-usage-card__detail {
  margin: 0;
  color: #4b5563;
  font-size: 0.9rem;
}

.bt-usage-card__summary {
  font-weight: 750;
}

.bt-usage-card__details {
  align-items: flex-start;
}

.bt-usage-card__detail strong {
  color: #111827;
}

.bt-usage-card__breakdown {
  padding-top: 2px;
}

.bt-usage-card__breakdown-title {
  margin: 0 0 8px;
  color: #111827;
  font-size: 0.86rem;
}

.bt-usage-card__breakdown-list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bt-usage-card__breakdown-item {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 10px;
  border-radius: 10px;
  background: #f8fafc;
  color: #4b5563;
  font-size: 0.84rem;
}

.bt-usage-card__breakdown-item strong {
  flex: 0 0 auto;
  color: #111827;
}

.bt-usage-card__link {
  color: #b42318;
  font-size: 0.9rem;
  font-weight: 800;
  text-underline-offset: 3px;
}

.bt-usage-card__fallback {
  margin: 0;
  color: #6b7280;
  font-size: 0.9rem;
}

.bt-usage-card--compact {
  gap: 10px;
  padding: 15px;
  box-shadow: none;
}

.bt-usage-card--compact .bt-usage-card__details {
  display: none;
}

.bt-usage-card--compact .bt-usage-card__breakdown {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .bt-usage-card__fill {
    transition: none;
  }
}

@media (max-width: 520px) {
  .bt-usage-card {
    padding: 15px;
  }

  .bt-usage-card__head,
  .bt-usage-card__details {
    align-items: flex-start;
    flex-direction: column;
  }

  .bt-usage-card__breakdown-item {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
}