.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
}
.title, .subtitle {
  text-align: center;
  color: #333;
}
.mui-btn {
  display: block;
  width: 100%;
  margin: 10px 0;
}
.bus-info {
  margin-top: 20px;
}
.mui-panel {
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-bottom: 10px;
}
.mui-panel {
  cursor: pointer;
  transition: box-shadow 0.3s;
}
.mui-panel:hover {
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.selected {
  background-color: #e0e0e0;
}
.tracking-message {
  color: red;
  font-weight: bold;
  margin-bottom: 10px;
}


@media (max-width: 600px) {
  .container {
    padding: 10px;
  }
  .mui-btn {
    font-size: 14px;
  }
}
.loader,
.loader:after {
  border-radius: 50%;
  width: 10em;
  height: 10em;
}
.loader {
  margin: 60px auto;
  font-size: 10px;
  position: relative;
  text-indent: -9999em;
  border-top: 1.1em solid rgba(255, 255, 255, 0.2);
  border-right: 1.1em solid rgba(255, 255, 255, 0.2);
  border-bottom: 1.1em solid rgba(255, 255, 255, 0.2);
  border-left: 1.1em solid #ffffff;
  transform: translateZ(0);
  animation: load8 1.1s infinite linear;
}

@keyframes load8 {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* 透明感のあるMUIボタンスタイル */
.mui-btn {
  margin-top: 20px;
  font-size: 16px;
  padding: 10px 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  background-color: rgba(25, 118, 210, 0.7); /* 透明度を加えた背景色 */
  color: #fff;
  border: none;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.mui-btn:hover {
  background-color: rgba(25, 118, 210, 0.9); /* ホバー時の透明度 */
}

.mui-btn--raised {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); /* 軽い影を加える */
}