/* ヘッダーとフッターのスタイルを上書き */
header, footer {
  padding: 0rem 1rem;
}
.footer-copyright {
  text-align: right;
  margin: 0;
  font-size: 0.625rem;
}

/* ヘッダー内のブランドアイコン */
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap; /* 折り返しを防止 */
}
.header-icon {
  display: inline-block;
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 50%;
  vertical-align: middle;
}
.header-title {
  display: inline-block;
  vertical-align: middle;
  text-align: center;
  margin: 0;
  line-height: 1;
}

/* imageレイアウト: image 左 20%, text 右 80% */
.image20 {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.image20 .avatar {
  flex: 0 0 20%;
  max-width: 20%;
}
.image20 .avatar img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}
.image20 .image20-text {
  flex: 1 1 80%;
}

/* Link集 */
.link-section {
  text-align: center;
}
.link-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0 auto; /* center the column block */
  max-width: 320px;
  align-items: stretch; /* make buttons fill the container */
}
.link-list button {
  width: 100%;
  box-sizing: border-box;
}