body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #FFE5B4;
}
.container {
  display: flex;
  height: 100vh;
}
.menu {
  flex: 1;
  background-color: #FFD580;
  box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}
.menu h2 {
  font-size: 20px;
  color: #8B4513;
  margin-bottom: 20px;
}
/*.menu a {
    display: block;
    text-decoration: none;
    background-color: #FFE4B5;
    color: #8B4513;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease;
}
*/
.menu a:hover {
  /*    background-color: #FFC98B;
*/
}
.content {
  flex: 2;
  background-color: #FFFFFF;
  overflow-y: auto;
}
.content h2 {
  font-size: 22px;
  color: #8B4513;
  margin-bottom: 20px;
}
.update {
  margin-bottom: 15px;
  padding: 15px;
  border: 1px solid #FFD580;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s ease;
}
.update:hover {
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
.update h3 {
  font-size: 18px;
  margin: 0 0 10px;
  color: #8B4513;
}
.update p {
  font-size: 16px;
  margin: 0;
  color: #555555;
}
.contentbody {
  margin: 20px;
}
/* モバイル対応 */
@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }
  .menu {
    width: 100%;
    box-shadow: none;
    margin-bottom: 20px;
  }
  .content {
    width: 100%;
  }
  .menu a {
    /*   font-size: 16px;
        padding: 10px;
    */
  }
  .content h2 {
    font-size: 20px;
  }
  .update {
    padding: 10px;
    font-size: 14px;
  }
}
main {
  padding: 20px;
  background-color: #FFE5B4;
}
.link{
text-decoration: none;
}
.icon {
  font-size: 24px;
  margin-right: 15px;
}
.label {
  font-size: 18px;
  font-weight: bold;
  color: #8B4513;
}
#button {
  display: flex;
  align-items: center;
  background-color: #FFD580;
  margin-bottom: 15px;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}
header{
    position: relative; text-align: center; color: white;
}
.snsname{
    background-color: #FFD580; color: #8B4513; text-align: center; padding: 10px 0; font-size: 18px; font-weight: bold; margin-top: 10px;
}
.headerimg{
    width: 100%; height: auto; display: block; object-fit: cover;
}
.login{
    text-align: center; margin-top: 20px;
}
.loginUrl{
    display: inline-block; background-color: #FFA07A; color: white; padding: 10px 20px; text-decoration: none; font-size: 18px; font-weight: bold; border-radius: 5px; box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
footer{
    background-color: #8B4513; color: white; text-align: center; padding: 10px 0; position: relative; bottom: 0; width: 100%;
}
.gotohome{
    color: white; text-decoration: none; font-size: 16px; font-weight: bold;
}
.logout{
    color: white; text-decoration: underline; font-size: 16px;
}
.allrights{
    margin-top: 5px; font-size: 12px;
}