.cg-speedtest {
  max-width: 560px;
  margin: 20px auto;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid #ddd;
  background: #fafafa;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.cg-speedtest-header {
  margin-bottom: 8px;
}

.cg-speedtest-title {
  font-size: 1.1rem;
  margin: 0;
}

.cg-speedtest-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.cg-speedtest-start-once {
  padding: 6px 14px;
  border-radius: 999px;
  border: none;
  background: #0073aa;
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
}

.cg-speedtest-start-once:disabled {
  opacity: 0.6;
  cursor: default;
}

.cg-speedtest-continuous {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 0.85rem;
}

.cg-speedtest-continuous input[type='number'] {
  width: 80px;
}

.cg-speedtest-start-continuous,
.cg-speedtest-stop-continuous {
  padding: 4px 10px;
  border-radius: 6px;
  border: none;
  font-size: 0.8rem;
  cursor: pointer;
}

.cg-speedtest-start-continuous {
  background: #008a20;
  color: #fff;
}

.cg-speedtest-stop-continuous {
  background: #aa0000;
  color: #fff;
}

.cg-speedtest-start-continuous:disabled,
.cg-speedtest-stop-continuous:disabled {
  opacity: 0.5;
  cursor: default;
}

.cg-speedtest-status {
  margin: 8px 0;
  font-size: 0.9rem;
  color: #555;
}

.cg-speedtest-results {
  display: flex;
  justify-content: space-around;
  margin-bottom: 10px;
}

.cg-speedtest-result {
  text-align: center;
}

.cg-speedtest-label {
  display: block;
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 4px;
}

.cg-speedtest-value {
  font-size: 1.4rem;
  font-weight: bold;
  min-width: 70px;
  display: inline-block;
  text-align: right;
}

.cg-speedtest-unit {
  font-size: 0.9rem;
  margin-left: 4px;
}

.cg-speedtest-chart-wrapper {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid #e0e0e0;
  height: 260px; /* Chart.js の高さ確保 */
}

.cg-speedtest-chart-title {
  font-size: 0.9rem;
  margin: 0 0 4px;
}

.cg-speedtest-note {
  margin-top: 8px;
  font-size: 0.75rem;
  color: #888;
}