/*
 * 時間軸：一條直線串起每個日期的點。每列三欄：日期（靠右）｜點與線｜事項。
 * 點對齊每列第一行文字；線由每列的線段接起來（列與列之間用 padding 留白，不用 gap，線才不會斷），
 * 第一列的線從點開始、最後一列的線到點為止。
 * 有動畫時（html.lws-motion）assets/motion.js 依捲動位置替走到的列加 is-reached，還沒走到的點與線段先變淡；
 * 沒有動畫時全部直接顯示成走到的樣子。
 */
/* position: relative 讓列的 offsetTop 以清單為準，motion.js 用它算每列在第幾成的位置 */
.lws-timeline .lws-timeline__list {
  position: relative;
  max-width: var(--layout-narrow);
  margin: 0 auto;
  padding: 0;
  list-style: none;
}
.lws-timeline .lws-timeline__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--space-6) minmax(0, 2fr);
  gap: var(--space-4);
  align-items: start;
  padding-bottom: var(--space-6);
}
.lws-timeline .lws-timeline__item:last-child {
  padding-bottom: 0;
}
.lws-timeline .lws-timeline__date {
  color: var(--s-fg);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.lws-timeline .lws-timeline__title {
  color: var(--s-fg);
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: var(--leading-snug);
}
.lws-timeline .lws-timeline__dot {
  position: relative;
  align-self: stretch;
  margin-bottom: calc(-1 * var(--space-6));
}
.lws-timeline .lws-timeline__item:last-child .lws-timeline__dot {
  margin-bottom: 0;
}
/* 線段：從這一列的點往下接到下一列的點 */
.lws-timeline .lws-timeline__dot::before {
  position: absolute;
  top: var(--space-2);
  bottom: calc(-1 * var(--space-2));
  inset-inline: 0;
  width: 2px;
  margin-inline: auto;
  background: var(--s-strong);
  content: "";
}
.lws-timeline .lws-timeline__item:last-child .lws-timeline__dot::before {
  display: none;
}
/* 點 */
.lws-timeline .lws-timeline__dot::after {
  position: absolute;
  top: var(--space-2);
  inset-inline: 0;
  width: var(--space-3);
  height: var(--space-3);
  margin-inline: auto;
  border: 2px solid var(--s-accent);
  border-radius: var(--radius-pill);
  background: var(--s-accent);
  content: "";
}
@media (max-width: 767px) {
  .lws-timeline .lws-timeline__item {
    grid-template-columns: var(--space-9) var(--space-5) minmax(0, 1fr);
    gap: var(--space-3);
  }
  .lws-timeline .lws-timeline__date,
  .lws-timeline .lws-timeline__title {
    font-size: var(--text-md);
  }
  /* 字變小、第一行變矮，點跟著往上移才會對齊文字 */
  .lws-timeline .lws-timeline__dot::before,
  .lws-timeline .lws-timeline__dot::after {
    top: var(--space-1);
  }
  .lws-timeline .lws-timeline__dot::before {
    bottom: calc(-1 * var(--space-1));
  }
}
@media (prefers-reduced-motion: no-preference) {
  .lws-motion .lws-timeline .lws-timeline__dot::before,
  .lws-motion .lws-timeline .lws-timeline__dot::after {
    transition:
      background-color var(--duration-slow) var(--ease-standard),
      border-color var(--duration-slow) var(--ease-standard);
  }
  .lws-motion .lws-timeline .lws-timeline__item:not(.is-reached) .lws-timeline__dot::before {
    background: var(--s-line);
  }
  .lws-motion .lws-timeline .lws-timeline__item:not(.is-reached) .lws-timeline__dot::after {
    border-color: var(--s-line);
    background: var(--s-bg);
  }
  .lws-motion .lws-timeline .lws-timeline__item:not(.is-reached) .lws-timeline__date {
    color: var(--s-muted);
  }
  .lws-motion .lws-timeline .lws-timeline__item .lws-timeline__date {
    transition: color var(--duration-slow) var(--ease-standard);
  }
}