.nav-development { margin-top: 11px; padding-bottom: 7px; border-bottom: 1px solid #476256; }
.nav-development .nav-icon img { object-fit: contain; }
.home-progression { margin: 0 0 38px; }
.era-navigation { display: grid; grid-template-columns: repeat(9, minmax(90px, 1fr)); gap: 0; max-width: 100%; min-width: 0; margin: 0 0 22px; overflow-x: auto; border: 1px solid #b8c5b3; border-radius: 7px; background: var(--surface); scrollbar-width: thin; }
.era-navigation > a { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; min-height: 105px; padding: 12px 9px; border-right: 1px solid var(--line); line-height: 1.4; }
.era-navigation > a:last-child { border-right: 0; }
.era-navigation > a:hover { background: #edf2e8; }
.era-navigation > a[aria-current] { background: #235447; color: #fffef3; }
.era-number { color: #8b9a83; font: 12px Georgia, serif; letter-spacing: 1px; }
.era-navigation strong { color: inherit; font-size: 15px; white-space: nowrap; }
.era-navigation a[aria-current] .era-number { color: #dbcb9b; }
.era-counts { display: flex; align-items: center; gap: 10px; font-size: 12px; font-variant-numeric: tabular-nums; }
.era-counts > span { display: inline-flex; align-items: center; gap: 3px; }
.era-counts img { width: 16px; height: 16px; object-fit: contain; }
.development-tracks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.development-track { display: flex; align-items: center; gap: 17px; min-height: 114px; padding: 18px 22px; border: 1px solid #b5cddc; border-left: 5px solid #367d9d; border-radius: 6px; background: #e9f1f5; }
.development-track.civics { border-color: #cfbed6; border-left-color: #9866a1; background: #f3edf5; }
.development-track:hover { filter: brightness(.97); }
.development-emblem { display: grid; flex: 0 0 50px; place-items: center; width: 50px; height: 50px; border: 1px solid #c0d4df; border-radius: 50%; background: #fffaf3; }
.development-emblem img { width: 34px; height: 34px; }
.development-track > span:nth-child(2) { min-width: 0; }
.development-track small { display: block; color: #3d677d; font-size: 12px; }
.development-track.civics small { color: #775081; }
.development-track strong { display: block; margin: 2px 0 3px; color: #21546b; font-size: 23px; line-height: 1.4; }
.development-track.civics strong { color: #744c7e; }
.track-total { display: block; color: #546667; font-size: 13px; }
.development-track > svg { margin-left: auto; color: #527a89; }
.era-heading-caption { margin: 0; color: var(--muted); font-size: 15px; }
.era-overview-heading { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px 15px; margin: 29px 0 18px; }
.era-overview-heading h2 { margin: 0; font-size: 27px; }
.era-overview-heading > span { margin-right: auto; color: var(--muted); font-size: 14px; }
.era-overview-heading a { color: var(--teal); font-size: 13px; text-decoration: underline; text-underline-offset: 4px; }
.era-track-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: 22px; }
.era-track { min-width: 0; overflow: hidden; border: 1px solid #bfd1dc; border-radius: 7px; background: var(--surface); }
.era-track.civics { border-color: #d3c3d7; }
.era-track-heading { display: flex; align-items: center; gap: 8px; padding: 16px 17px; border-bottom: 1px solid #bfd1dc; background: #e6f0f5; }
.era-track.civics .era-track-heading { border-color: #d3c3d7; background: #f1eaf4; }
.era-track-heading h2 { margin: 0; color: #265b74; font-size: 21px; }
.era-track.civics .era-track-heading h2 { color: #754880; }
.era-track-heading h2 > span { font-size: 13px; font-weight: 500; }
.era-track-heading > img { width: 25px; height: 25px; }
.era-track-heading > a { display: flex; align-items: center; gap: 4px; margin-left: auto; font-size: 12px; white-space: nowrap; }
.era-track-heading > a svg { width: 16px; height: 16px; }
.era-research-card { padding: 17px; border-bottom: 1px solid var(--line); }
.era-research-card:last-child { border-bottom: 0; }
.era-research-title { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; align-items: center; gap: 11px; line-height: 1.5; }
.era-research-title:hover strong { text-decoration: underline; text-underline-offset: 4px; }
.era-research-title > .entity-picture { width: 44px; height: 44px; }
.era-research-title > strong { color: #225a72; font-size: 17px; }
.civics .era-research-title > strong { color: #794c83; }
.era-research-cost { display: inline-flex; align-items: center; gap: 5px; color: #54656a; font-size: 14px; font-variant-numeric: tabular-nums; }
.era-research-cost img { width: 19px; height: 19px; }
.era-research-prerequisites { display: flex; align-items: baseline; flex-wrap: wrap; gap: 3px 5px; margin: 9px 0 0 55px; font-size: 12px; line-height: 1.7; }
.era-research-prerequisites > span:first-child { margin-right: 4px; color: var(--muted); }
.era-research-prerequisites a { text-decoration: underline; text-decoration-color: #b7c7c0; text-underline-offset: 3px; }
.era-research-boost { display: flex; gap: 10px; margin: 10px 0 0; color: #536358; font-size: 13px; line-height: 1.65; }
.era-research-boost strong { flex-shrink: 0; color: #657e3c; font-size: 12px; }
.era-research-unlocks { display: flex; flex-wrap: wrap; gap: 6px 13px; margin-top: 13px; padding-top: 11px; border-top: 1px solid var(--line-soft); }
.era-unlock { display: flex; align-items: center; gap: 6px; min-width: 0; min-height: 32px; font-size: 12px; line-height: 1.5; }
.era-unlock:hover > span:last-child { text-decoration: underline; text-underline-offset: 3px; }
.era-unlock .entity-picture { flex: 0 0 26px; width: 26px; height: 26px; }
.era-unlock-directory { margin-top: 37px; }
.era-unlock-group { margin-top: 20px; padding: 20px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.era-unlock-group .section-head { margin-bottom: 14px; }
.era-unlock-group h3 { display: flex; align-items: center; gap: 8px; margin: 0; font-size: 18px; }
.era-unlock-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.era-index-item { min-width: 0; padding: 9px; border: 1px solid var(--line-soft); border-radius: 4px; }
.era-index-item .era-unlock { font-size: 14px; }
.era-index-item .entity-picture { flex-basis: 34px; width: 34px; height: 34px; }
.era-index-item .civ-badge { margin: 6px 0 0 40px; padding: 1px 5px; font-size: 10px; }
.era-index-item .civ-badge img { width: 14px; height: 14px; }
.era-more-unlocks { margin-top: 12px; }
.era-more-unlocks summary { padding: 8px 0; color: var(--teal); font-size: 13px; }
.era-random-note { padding: 11px 16px; border-left: 3px solid #a18652; background: #f0ebdf; color: #706044; font-size: 14px; }
.entry-era-heading { display: flex; align-items: center; gap: 9px; margin: 0; padding: 10px 20px; border-bottom: 1px solid var(--line); background: #f5f3ec; color: #746044; font-size: 13px; letter-spacing: 0; }
.entry-row + .entry-era-heading { border-top: 1px solid #cfc6b3; }
.entry-era-heading > span:nth-child(2) { color: #8b8273; font-size: 12px; font-weight: 400; }
.entry-era-heading > a { display: flex; align-items: center; gap: 5px; margin-left: auto; color: #63735a; font-size: 11px; font-weight: 400; }
.entry-era-heading > a svg { width: 14px; height: 14px; }
.list-tree-switch { display: flex; flex-wrap: wrap; gap: 5px; margin: 0 0 20px; border-bottom: 1px solid var(--line); }
.list-tree-switch a { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 8px 17px; font-size: 14px; }
.list-tree-switch a[aria-current] { border-bottom: 3px solid var(--teal); color: var(--teal); font-weight: 700; }
.list-tree-switch svg, .tree-list-link svg { width: 17px; height: 17px; }
.tree-list-link { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; padding: 8px 13px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); font-size: 13px; }
.record-era-links { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 18px; margin: 16px 0; color: var(--teal); font-size: 13px; }
.record-era-links a { text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 1150px) {
  .era-unlock-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .era-track-columns { gap: 15px; }
  .era-track-heading { padding: 14px; }
  .era-track-heading h2 > span { display: none; }
  .development-track { padding: 16px; gap: 12px; }
  .development-track strong { font-size: 21px; }
}
@media (max-width: 700px) {
  .era-navigation { grid-template-columns: repeat(9, 94px); margin-bottom: 18px; scroll-snap-type: x proximity; }
  .era-navigation > a { scroll-snap-align: center; }
  .development-tracks, .era-track-columns { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .development-track { min-height: 99px; }
  .era-unlock-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .era-overview-heading { gap: 7px 13px; }
  .era-overview-heading > span { flex: 1; }
  .era-unlock-group { padding: 15px; }
  .era-track-heading h2 > span { display: inline; }
  .era-research-card { padding: 16px; }
  .era-research-title > strong { font-size: 16px; }
  .era-research-cost { font-size: 13px; }
  .entry-era-heading { padding-inline: 15px; }
}