h1 {
    text-align: center;
}

.demo-desc {
  text-align: center;
  color: #a0c4ff;
  margin-bottom: 24px;
  font-size: 0.97rem;
  line-height: 1.6;
}

.bf-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid rgba(102, 179, 255, 0.18);
  border-radius: 12px;
  margin-bottom: 14px;
  font-size: 0.95rem;
  color: #e8f3ff;
  flex-wrap: wrap;
  gap: 8px;
}

.bf-info-row code {
  color: #66d9ff;
  font-family: monospace;
  font-weight: 700;
  font-size: 1rem;
}

.bf-progress-wrap {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 14px;
}

#wb-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #3399ff, #66d9ff);
  border-radius: 999px;
  transition: width 0.12s linear;
}

.bf-status {
  text-align: center;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  min-height: 1.4em;
}

.bf-result {
  display: none;
  margin-top: 18px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid rgba(102, 179, 255, 0.18);
  border-radius: 12px;
  font-size: 0.93rem;
  line-height: 1.6;
  color: #e8f3ff;
}

.bf-result:not(:empty) {
  display: block;
}

.bf-danger {
  border-color: rgba(239, 68, 68, 0.35) !important;
  background: rgba(239, 68, 68, 0.08) !important;
  color: #fca5a5 !important;
}

.bf-safe {
  border-color: rgba(34, 197, 94, 0.35) !important;
  background: rgba(34, 197, 94, 0.08) !important;
  color: #86efac !important;
}
@media (max-width: 768px) {
  .bf-info-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .bf-info-row span {
    font-size: 0.88rem;
    width: 100%;
  }
}