/* ================================================================
   complete/ielts-history — local.css
   年表（タイムライン）コンポーネント : prefix ih-
   ================================================================ */

.ih-timeline {
  position: relative;
  margin: 1.6rem 0 0.4rem;
  padding-left: 0;
  list-style: none;
}

/* 縦のライン */
.ih-timeline::before {
  content: '';
  position: absolute;
  left: 4.6rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--lb4) 0%, var(--blue4) 100%);
}

.ih-tl__item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  padding: 0.55rem 0;
}

/* 丸のマーカー */
.ih-tl__item::before {
  content: '';
  position: absolute;
  left: calc(4.6rem - 5px); /* ライン中心(4.6rem + 1px)と丸の中心を合わせる */
  top: 1.05rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--pw);
  border: 2px solid var(--blue3);
  box-sizing: border-box;
  z-index: 1;
}

.ih-tl__item--now::before {
  background: var(--pink);
  border-color: var(--pink);
}

.ih-tl__year {
  flex: 0 0 3.6rem;
  text-align: right;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--blue2);
  line-height: 1.55;
  padding-top: 0.15rem;
}

.ih-tl__item--now .ih-tl__year {
  color: var(--pink);
}

.ih-tl__body {
  flex: 1 1 auto;
  margin-left: 1.2rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--gray);
}

.ih-tl__title {
  display: block;
  font-weight: 700;
  color: var(--black);
  font-size: 0.97rem;
  margin-bottom: 0.1rem;
}

@media (max-width: 600px) {
  .ih-timeline::before { left: 3.5rem; }
  .ih-tl__item::before { left: calc(3.5rem - 5px); }
  .ih-tl__year { flex-basis: 2.6rem; font-size: 0.9rem; }
  .ih-tl__body { margin-left: 1.1rem; font-size: 0.88rem; }
}