#checkpoint-list {
  list-style: none;
  padding-left: 0;
}

#checkpoint-list li {
    position: relative;
    margin: 14px 0;
    padding: 16px 16px 16px 48px;
    border: 1px solid #cccccc;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,.08);
}

#checkpoint-list li::before {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: bold;
}

#checkpoint-list li.completed::before {
  content: "☑";
}

#checkpoint-list li.not-completed::before {
  content: "☐";
}

#checkpoint-list li.completed {
  background: #f0f8f0;
}

#checkpoint-list li.completed,
#checkpoint-list li.completed a {
  color: #666666;
}

#checkpoint-list li.transport {
  padding-left: 42px;
  background: #eef6ff;
  border-color: #9fc5e8;
  color: #244a6b;
}

#checkpoint-list li.transport::before {
  content: "";
}

#checkpoint-list li.next-step {
    background: #fff8c6;
    border: 2px solid #f2c94c;
}

#checkpoint-list li.next-step::after {
    content: " ← 次はこちら";
    color: #d35400;
    font-weight: bold;
}

.course-reset-area {
    margin: 24px 0;
    text-align: center;
}

#course-reset-button {
    padding: 10px 20px;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    background: #777;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#course-reset-button:hover {
    background: #555;
}

.country-flag {
    width: 20px;
    height: auto;
    vertical-align: middle;
    margin-right: 6px;
}