/* history-timeline.css — Component: c-history-timeline */

:root {
  --history-timeline-year-col-width: 160px;
  --history-timeline-month-col-width: 37px;
  --history-timeline-divider-accent-width-sp: 160px;
  --history-timeline-divider-accent-width-pc: 160px;
  --history-timeline-divider-accent-thickness: 2px;
  --history-timeline-divider-line-thickness: 1px;
  --history-timeline-divider-line-color: #ededed;

  --history-timeline-year-line-height: calc(var(--font-size-xl) * var(--line-height-body-relaxed));
  --history-timeline-year-letter-spacing: 0;
}

.c-history-timeline {
  padding-top: var(--space-5xl);
  padding-bottom: var(--space-3xl);
}

.c-history-timeline .l-container > .c-section__title {
  margin-bottom: var(--space-2xl);
}

.c-history-timeline__items {
  display: flex;
  flex-direction: column;
}

.c-history-timeline__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  padding-bottom: var(--space-3xl);
}

.c-history-timeline__year {
  margin: 0;
  font-family: var(--font-main);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--history-timeline-year-line-height);
  letter-spacing: var(--history-timeline-year-letter-spacing);
  color: var(--color-text-primary);
  box-sizing: border-box;
  width: 100%;
  text-align: left;
}

.c-history-timeline__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  min-width: 0;
}

.c-history-timeline__row {
  display: grid;
  grid-template-columns: var(--history-timeline-month-col-width) minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.c-history-timeline__month {
  margin: 0;
  font-family: var(--font-main);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-body);
  letter-spacing: 0;
  text-align: right;
  color: var(--color-text-primary);
}

.c-history-timeline__text {
  min-width: 0;
}

.c-history-timeline__list {
  margin: 0;
  padding-left: var(--space-lg);
  font-family: var(--font-main);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-body);
  letter-spacing: 0;
  color: var(--color-text-primary);
  list-style-type: disc;
}

.c-history-timeline__list li + li {
  margin-top: var(--space-sm);
}

.c-history-timeline__list li::marker {
  font-family: var(--font-main);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-body);
  letter-spacing: 0;
  color: var(--color-text-primary);
}

.c-history-timeline__divider {
  position: relative;
  width: 100%;
  border-top: var(--history-timeline-divider-line-thickness) solid
    var(--history-timeline-divider-line-color);
  left: 0;
}

.c-history-timeline__divider::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(-1 * var(--history-timeline-divider-line-thickness));
  width: var(--history-timeline-divider-accent-width-sp);
  border-top: var(--history-timeline-divider-accent-thickness) solid
    var(--color-primary);
  z-index: 1;
}

@media (min-width: 768px) {
  .c-history-timeline {
    padding-top: var(--space-5xl);
    padding-bottom: var(--space-6xl);
  }

  .c-history-timeline .l-container > .c-section__title {
    margin-bottom: var(--space-2xl);
  }

  .c-history-timeline__year {
    justify-self: start;
    align-self: center;
    padding-inline: var(--space-md);
    color: var(--color-text-primary);
    text-align: center;
  }

  .c-history-timeline__grid {
    grid-template-columns: var(--history-timeline-year-col-width) minmax(0, 1fr);
    gap: var(--space-3xl);
    align-items: center;
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-4xl);
  }

  .c-history-timeline__body {
    gap: var(--space-lg);
  }

  .c-history-timeline__row {
    gap: var(--space-lg);
  }

  .c-history-timeline__divider::before {
    width: var(--history-timeline-divider-accent-width-pc);
  }
}