/* static/css/column_inline_link.css */
/* 共通の「虹色リンクボタン」。トップページのコラムリンクと共有。 */

a.column-inline-link {
  position: relative;
  display: inline-flex;
  width: fit-content;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  vertical-align: middle;
  color: #1d7cff;
  background: #eef4ff;
  border: 0.0625rem solid #cfe0ff;
  border-radius: 999px;
  text-decoration: none;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
}

a.column-inline-link::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, #1d7cff, #00a86b, #f0a202, #ff4d4d, #1d7cff);
  background-size: 300% 100%;
  opacity: 0;
  transition: opacity 0.25s ease;
  animation: column-inline-link-gradient 5s linear infinite paused;
}

a.column-inline-link:hover {
  color: #fff;
  border-color: transparent;
  background: #eef4ff;
  text-decoration: none;
  transform: translateY(-0.0625rem);
}

a.column-inline-link:hover::before {
  opacity: 1;
  animation-play-state: running;
}

a.column-inline-link:active {
  transform: translateY(0);
}

.column-inline-link__arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

a.column-inline-link:hover .column-inline-link__arrow {
  transform: translateX(0.25rem);
}

@keyframes column-inline-link-gradient {
  0% { background-position: 0% 0; }
  100% { background-position: 300% 0; }
}