/* Timeline page only. Keep selectors scoped so archive details cannot leak into other pages. */

body.archive-page[data-page="timeline"] {
  margin: 0;
  background: #f5f0e6;
  color: #2f312f;
  font-family: "BIZ UDPGothic", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  font-size: 17px;
  line-height: 1.72;
}

.archive-page[data-page="timeline"] * {
  box-sizing: border-box;
}

.archive-page[data-page="timeline"] {
  scroll-behavior: smooth;
}

.archive-page[data-page="timeline"] header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #f5f0e6f2;
  border-bottom: 1px solid #d8cdbb;
}

.archive-page[data-page="timeline"] .head {
  display: flex;
  max-width: 1000px;
  margin: auto;
  padding: 11px 14px;
  gap: 16px;
}

.archive-page[data-page="timeline"] a {
  color: #2f312f;
}

.archive-page[data-page="timeline"] .logo {
  margin-right: auto;
  font-weight: 800;
}

.archive-page[data-page="timeline"] main {
  max-width: 1000px;
  margin: auto;
  padding: 20px 14px 80px;
}

.archive-page[data-page="timeline"] .filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 15px 0 28px;
}

.archive-page[data-page="timeline"] .filters a {
  padding: 5px 9px;
  border: 1px solid #d8cdbb;
  border-radius: 999px;
  background: #fffaf1;
  font-size: .78rem;
  text-decoration: none;
}

.archive-page[data-page="timeline"] .year {
  margin-bottom: 34px;
}

.archive-page[data-page="timeline"] .year h2 {
  position: sticky;
  top: 47px;
  z-index: 4;
  padding: 7px 0;
  background: #f5f0e6ee;
}

.archive-page[data-page="timeline"] .event {
  border-top: 1px solid #d8cdbb;
  scroll-margin-top: 100px;
}

.archive-page[data-page="timeline"] details.event > summary {
  display: grid;
  grid-template-columns: 105px 1fr auto;
  gap: 10px;
  padding: 13px 5px;
  cursor: pointer;
  font-weight: 700;
}

.archive-page[data-page="timeline"] details.event > summary em {
  align-self: center;
  padding: 2px 7px;
  border: 1px solid #d8cdbb;
  border-radius: 999px;
  font-size: .7rem;
  font-style: normal;
  font-weight: 500;
}

.archive-page[data-page="timeline"] time {
  color: #68745f;
  font-size: .84rem;
}

/*
 * Native <details> should already hide its content while closed.
 * Keep the explicit rule as a defensive invariant: a future CSS change must
 * not accidentally make timeline bodies visible without the open attribute.
 */
.archive-page[data-page="timeline"] details.event:not([open]) > .body {
  display: none !important;
}

.archive-page[data-page="timeline"] details.event > .body {
  margin: 0 5px 13px 120px;
  padding: 13px;
  border: 1px solid #d8cdbb;
  border-radius: 12px;
  background: #fffaf1;
}

.archive-page[data-page="timeline"] .resources > div,
.archive-page[data-page="timeline"] .sources {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 7px;
}

.archive-page[data-page="timeline"] .res,
.archive-page[data-page="timeline"] .xlink {
  padding: 8px 11px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 700;
  text-decoration: none;
}

.archive-page[data-page="timeline"] .res {
  background: #263746;
  color: white;
}

.archive-page[data-page="timeline"] .xlink {
  border: 1px solid #d8cdbb;
  background: white;
}

.archive-page[data-page="timeline"] .event:target {
  border-radius: 8px;
  outline: 2px solid #8c947f;
  outline-offset: 3px;
}

@media (max-width: 700px) {
  body.archive-page[data-page="timeline"] {
    font-size: 16px;
  }

  .archive-page[data-page="timeline"] details.event > summary {
    grid-template-columns: 80px 1fr;
    gap: 7px;
  }

  .archive-page[data-page="timeline"] details.event > summary em {
    grid-column: 2;
    justify-self: start;
  }

  .archive-page[data-page="timeline"] details.event > .body {
    margin: 0 2px 12px;
  }

  .archive-page[data-page="timeline"] .res,
  .archive-page[data-page="timeline"] .xlink {
    width: 100%;
    text-align: center;
  }
}