@import url('https://fonts.googleapis.com/css2?family=M+PLUS+1p&family=Zen+Old+Mincho&display=swap');

.zen-old-mincho {
  font-family: "Zen Old Mincho", serif;
}

.m-plus {
  font-family: "M PLUS 1p", sans-serif;
}

.r2-button {
  display: inline-block;
  padding: 6px 12px;
  background: linear-gradient(135deg, #8e44ad, #663399);
  color: white;
  font-size: 1.5rem;
  font-family: 'Zen Old Mincho', 'Helvetica Neue', sans-serif;
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  text-decoration: none;
  width: fit-content;
  max-width: 100%;
}

.r2-button:hover {
  background: linear-gradient(135deg, #a166c9, #7a42c2);
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* スマホ対応 */
@media (max-width: 600px) {
  .r2-button {
    font-size: 1.2rem;
    padding: 10px 18px;
  }
}

header{
  display: flex;
  justify-content: space-between;
}

.btn{
  cursor: pointer;
  text-align: center;
  color: white;
  font-weight: bold;
  line-height: 1.8;
  text-decoration: none;
  display: inline-block;
  min-height: 12px;
  max-height: 64px;
  border-radius: 10px;
  margin-left: 8px;
  vertical-align: middle;
  padding: 8px 12px;
  flex-shrink: 0;
  background-color: #3da1db;
}

.button-hover:hover{
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.logoutBtn {
  background-color: #8e44ad;
  transition: all 0.2s ease-out;
}

.logoutBtn:hover {
  background-color: #7a42c2;
  transform: translateY(-1px);
}

.studyPoint{
  display: inline-block;
  border-bottom: solid 2px black;
}
#studyPoint{
  font-size: 1.2rem;
}