/* Horizontal orientation overrides (years on X, states on Y). */

/* Horizontal keeps a full-width inner viewport so long state lists scroll */
html[data-orientation="horizontal"] .timeline-scroll {
  width: auto;
  max-width: none;
  margin-left: 0;
  margin-right: 0;
}

/* Horizontal orientation (years on X, states on Y) */
html[data-orientation="horizontal"] {
  --label-shadow: 8px 0 14px -8px rgba(0, 0, 0, 0.7);
  --year-axis-shadow: 0 8px 14px -8px rgba(0, 0, 0, 0.7);
}

html[data-orientation="horizontal"][data-theme="light"] {
  --label-shadow: 8px 0 14px -8px rgba(18, 20, 26, 0.22);
  --year-axis-shadow: 0 8px 14px -8px rgba(18, 20, 26, 0.2);
}

html[data-orientation="horizontal"] .timeline-main {
  flex-direction: column;
  gap: var(--state-gap);
}

html[data-orientation="horizontal"] .axis-row {
  display: flex;
  align-items: stretch;
  position: sticky;
  top: 0;
  z-index: 14;
  background: var(--chart-bg);
  box-shadow: var(--year-axis-shadow);
}

html[data-orientation="horizontal"] .axis-corner {
  width: var(--label-w);
  height: var(--axis-h);
  position: sticky;
  left: 0;
  top: 0;
  z-index: 16;
  border-bottom: none;
  border-right: 1px solid var(--border);
}

html[data-orientation="horizontal"] .axis-corner-year {
  top: 0.35rem;
  right: 0.45rem;
  bottom: auto;
  left: auto;
}

html[data-orientation="horizontal"] .axis-corner-country {
  bottom: 0.35rem;
  left: 0.45rem;
  top: auto;
  right: auto;
}

html[data-orientation="horizontal"] .year-axis {
  width: auto;
  height: var(--axis-h);
  border-right: none;
  border-bottom: none;
  background: var(--chart-bg);
}

html[data-orientation="horizontal"] .axis-row,
html[data-orientation="horizontal"] .year-axis {
  overflow: visible;
}

html[data-orientation="horizontal"] .axis-year-label {
  top: 50%;
  bottom: auto;
  left: 0;
  right: auto;
  height: auto;
  width: auto;
  justify-content: center;
  align-items: center;
  padding: 0;
  text-align: center;
  white-space: nowrap;
  /* Top to bottom along the year axis. Present-first flips this below. */
  transform: translate(-50%, -50%) rotate(90deg);
  transform-origin: center center;
}

html[data-orientation="horizontal"][data-year-order="descending"] .axis-year-label {
  transform: translate(-50%, -50%) rotate(-90deg);
}

html[data-orientation="horizontal"] .timeline-body {
  flex-direction: column;
}

html[data-orientation="horizontal"] .state-group {
  flex-direction: row;
  margin-bottom: 0;
}

html[data-orientation="horizontal"] .state-group:last-child {
  box-shadow: none;
}

html[data-orientation="horizontal"] .state-seats {
  flex-direction: column;
}

html[data-orientation="horizontal"] .congress-band {
  top: 0;
  bottom: 0;
  left: auto;
  right: auto;
}

html[data-orientation="horizontal"] .congress-mark {
  top: auto;
  bottom: 0;
  left: auto;
  right: auto;
  width: auto;
  height: var(--congress-rail, 16px);
}

/* Horizontal: a short row under the rotated year labels, not a full-height cover. */
html.congresses-enabled[data-orientation="horizontal"] {
  --congress-rail: 16px;
  --year-label-w: 64px;
  --axis-h: 68px;
}

@media (max-width: 640px) {
  html.congresses-enabled[data-orientation="horizontal"] {
    --axis-h: 60px;
  }
}

html.congresses-enabled[data-orientation="horizontal"] .axis-year-label {
  right: auto;
  top: calc((var(--axis-h) - var(--congress-rail)) / 2);
}

html[data-orientation="horizontal"] .country-row {
  width: auto;
  flex-direction: row;
}

html[data-orientation="horizontal"] .country-label {
  width: var(--label-w);
  height: auto;
  min-height: 0;
  align-self: stretch;
  position: sticky;
  left: 0;
  top: auto;
  border-bottom: none;
  border-right: 1px solid var(--border);
  padding: 0 0.45rem;
  justify-content: center;
}

html[data-orientation="horizontal"] .country-name {
  position: static;
  left: auto;
  top: auto;
  width: auto;
  transform: none;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

html[data-orientation="horizontal"] .country-sort-date {
  font-weight: 500;
  font-size: 0.75em;
  letter-spacing: 0.01em;
  text-transform: none;
  color: var(--text-muted);
}

html[data-orientation="horizontal"] .country-label:has(.country-admitted) .country-name {
  left: auto;
  top: auto;
}

html[data-orientation="horizontal"] .country-admitted {
  position: static;
  left: auto;
  top: auto;
  transform: none;
  margin-top: 0.1rem;
  text-align: left;
}

/* Name alone - center it in the two-seat-tall label cell. */
html[data-orientation="horizontal"].admission-year-hidden .country-label {
  justify-content: center;
}

html[data-orientation="horizontal"] .country-track {
  width: auto;
  min-height: var(--seat-h);
  border-right: none;
  border-bottom: none;
  background-image:
    repeating-linear-gradient(
      to right,
      var(--year-line-decade) 0,
      var(--year-line-decade) 1.5px,
      transparent 1.5px,
      transparent calc(10 * var(--year-slot, var(--year-w)))
    ),
    repeating-linear-gradient(
      to right,
      var(--year-line-major) 0,
      var(--year-line-major) 1px,
      transparent 1px,
      transparent calc(5 * var(--year-slot, var(--year-w)))
    ),
    repeating-linear-gradient(
      to right,
      var(--year-line-minor) 0,
      var(--year-line-minor) 1px,
      transparent 1px,
      transparent var(--year-slot, var(--year-w))
    );
  background-repeat: no-repeat, no-repeat, no-repeat;
  background-size: 100% var(--year-tick), 100% var(--year-tick), 100% var(--year-tick);
  background-position-x:
    var(--grid-decade-offset, 0),
    var(--grid-major-offset, 0),
    0;
  background-position-y: center, center, center;
}

html[data-orientation="horizontal"] .state-group .country-row:last-child .country-track {
  border-bottom: none;
}

html[data-orientation="horizontal"] .bar {
  min-height: 0;
  min-width: 2px;
}

html[data-orientation="horizontal"] .bar.ruler {
  left: auto;
  width: auto;
  top: var(--ruler-top);
  height: var(--ruler-bar-h);
}

/* Stepped reigns set their own box from the polygon bbox. */
html[data-orientation="horizontal"] .bar.ruler.stepped {
  top: 0;
  height: auto;
  left: auto;
  width: auto;
}

html[data-orientation="horizontal"] .bar-label {
  top: 50%;
  left: 5px;
  right: auto;
  bottom: auto;
  transform: translateY(-50%);
  max-height: none;
  max-width: calc(100% - 10px);
  writing-mode: horizontal-tb;
  text-orientation: mixed;
  line-height: 0;
}

/* Descending: present at left → pin label to the past (right) end of the bar */
html[data-orientation="horizontal"][data-year-order="descending"] .bar-label {
  left: auto;
  right: 5px;
}

html[data-orientation="horizontal"] .bar-label-text {
  max-width: 100%;
  max-height: none;
  padding: 1px 4px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0;
}

html[data-orientation="horizontal"][data-year-order="descending"] .bar-label-text {
  direction: rtl;
  text-align: left;
  unicode-bidi: plaintext;
}

/* Narrow screens: state names scroll with the years instead of pinning on the left.
   Keep .axis-corner positioned so the diagonal and Year/Country labels stay inside it. */
@media (max-width: 640px) {
  html[data-orientation="horizontal"] .country-label {
    position: static;
    left: auto;
    box-shadow: none;
  }

  html[data-orientation="horizontal"] .axis-corner {
    position: relative;
    left: auto;
    top: auto;
    box-shadow: none;
  }
}