/* viewer.css -- everything is namespaced.
 *
 * Custom properties are all --cg-*, and every class is .cg-*. This page has to
 * be able to drop into a host site that already defines --bg, --line, --muted,
 * .wrap and friends on :root without redefining any of them out from under it.
 *
 * Theming works two ways so the same file serves both builds: the media query
 * covers the standalone file, and the [data-theme] rules -- which come last and
 * therefore win -- cover a host that sets the attribute explicitly.
 */

:root {
  --cg-bg: #ffffff;
  --cg-fg: #16181d;
  --cg-muted: #6b7280;
  --cg-line: #e3e6ea;
  --cg-panel: #f7f8fa;
  --cg-outline: #101216;
  --cg-accent: #005599;
}
@media (prefers-color-scheme: dark) {
  :root {
    --cg-bg: #14161a;
    --cg-fg: #e8eaed;
    --cg-muted: #9aa2ad;
    --cg-line: #2a2e35;
    --cg-panel: #1b1e24;
    --cg-outline: #dfe3e9;
    --cg-accent: #4f9be8;
  }
}
:root[data-theme="light"] {
  --cg-bg: #ffffff; --cg-fg: #16181d; --cg-muted: #6b7280;
  --cg-line: #e3e6ea; --cg-panel: #f7f8fa; --cg-outline: #101216; --cg-accent: #005599;
}
:root[data-theme="dark"] {
  --cg-bg: #14161a; --cg-fg: #e8eaed; --cg-muted: #9aa2ad;
  --cg-line: #2a2e35; --cg-panel: #1b1e24; --cg-outline: #dfe3e9; --cg-accent: #4f9be8;
}

.cg,
.cg * { box-sizing: border-box; }

.cg {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 0 24px;
  /* Text colour is deliberately inherited from the host page. Forcing it here
   * would fight a host whose background this file knows nothing about. Only the
   * pieces that need a specific colour -- panels, tooltip, map strokes -- use
   * the --cg-* variables. */
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.cg-head { margin-bottom: 16px; }
.cg-head h1 {
  margin: 0 0 4px;
  font-size: clamp(21px, 3.2vw, 32px);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.cg-sub { color: var(--cg-muted); font-size: 14px; }
.cg-sub a { color: inherit; }

/* controls ---------------------------------------------------------------- */

.cg-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  padding: 11px 13px;
  margin-bottom: 12px;
  background: var(--cg-panel);
  border: 1px solid var(--cg-line);
  border-radius: 10px;
}

.cg button {
  font: inherit;
  font-weight: 550;
  padding: 7px 14px;
  color: var(--cg-bg);
  background: var(--cg-fg);
  border: 0;
  border-radius: 7px;
  cursor: pointer;
}
.cg button:hover { opacity: 0.85; }
.cg button.cg-ghost {
  color: var(--cg-fg);
  background: transparent;
  border: 1px solid var(--cg-line);
}
.cg button[hidden] { display: none; }

.cg-scrub { display: flex; align-items: center; gap: 9px; flex: 1 1 230px; min-width: 190px; }
.cg-scrub span { color: var(--cg-muted); font-size: 12px; white-space: nowrap; }
.cg input[type="range"] { flex: 1; min-width: 80px; accent-color: var(--cg-accent); }

.cg-chk {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--cg-muted);
  cursor: pointer;
  user-select: none;
}

.cg-legend { display: flex; gap: 16px; flex-wrap: wrap; }
.cg-key { display: inline-flex; align-items: center; font-size: 13px; font-variant-numeric: tabular-nums; }
.cg-sw {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 11px; height: 11px;
  padding: 0 2px;
  margin-right: 6px;
  border-radius: 2px;
  vertical-align: -1px;
  flex: none;
  font-size: 9px;
  font-weight: 700;
  line-height: 1;
  color: #fff;
}
/* The election legend and both tooltips use bare swatches with no glyph; keep
   those square rather than letting the padding above widen them. */
.cg-sw:empty { min-width: 11px; width: 11px; padding: 0; }

.cg-status { color: var(--cg-muted); font-size: 12px; font-variant-numeric: tabular-nums; }

/* map --------------------------------------------------------------------- */

/* overflow must be hidden, not visible: when zoomed, the viewBox shows a small
 * part of the country and everything else has to be clipped away rather than
 * painted across the rest of the page. Nothing is clipped at zoom 1 -- the
 * content fits the frame by construction. */
.cg-map { display: block; width: 100%; height: auto; overflow: hidden; touch-action: manipulation; }

.cg-dists path { stroke: var(--cg-bg); stroke-linejoin: round; cursor: pointer; }
.cg-dists path:hover { stroke: var(--cg-fg); }

.cg-outer { fill: none; stroke: var(--cg-bg); stroke-linejoin: round; opacity: 0.75; }
.cg-inner { fill: none; stroke: var(--cg-outline); stroke-linejoin: round; }

/* a state dimmed because another one is zoomed into */
.cg-state { transition: opacity 0.3s; }
.cg-state.cg-dim { opacity: 0.16; }
.cg-state.cg-dim .cg-dists path { cursor: default; }

.cg-dlabel {
  opacity: 0;
  fill: #fff;
  font-weight: 600;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
  user-select: none;
  paint-order: stroke;
  stroke: rgba(0, 0, 0, 0.35);
  transition: opacity 0.2s;
}

.cg-slabels text {
  fill: var(--cg-outline);
  font-weight: 700;
  dominant-baseline: middle;
  pointer-events: none;
  user-select: none;
}
.cg-slabels { transition: opacity 0.25s; }

/* tooltip ----------------------------------------------------------------- */

.cg-tip {
  position: fixed;
  display: none;
  z-index: 40;
  max-width: 280px;
  padding: 9px 11px;
  background: var(--cg-bg);
  color: var(--cg-fg);
  border: 1px solid var(--cg-line);
  border-radius: 8px;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.16);
  font: 13px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        Helvetica, Arial, sans-serif;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}

.cg-foot { margin-top: 18px; color: var(--cg-muted); font-size: 12.5px; }
.cg-err {
  padding: 14px;
  border: 1px solid var(--cg-line);
  border-radius: 8px;
  color: var(--cg-fg);
  background: var(--cg-panel);
}

@media (prefers-reduced-motion: reduce) {
  .cg-state, .cg-slabels, .cg-dlabel { transition: none; }
}

/* ------------------------------------------------- apportionment additions ---
 * The apportionment page shares this stylesheet so both visuals stay
 * theme-consistent and there is one place to change the chrome.
 */

/* segmented year switch */
.cg-seg { display: inline-flex; border: 1px solid var(--cg-line); border-radius: 8px; overflow: hidden; }
.cg-seg button {
  font: inherit;
  font-weight: 550;
  padding: 7px 15px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--cg-muted);
  cursor: pointer;
}
.cg-seg button + button { border-left: 1px solid var(--cg-line); }
.cg-seg button[aria-pressed="true"] { background: var(--cg-fg); color: var(--cg-bg); }
.cg-seg button:hover:not([aria-pressed="true"]) { color: var(--cg-fg); opacity: 1; }

.cg button.cg-ghost-btn {
  color: var(--cg-fg);
  background: transparent;
  border: 1px solid var(--cg-line);
}

/* a cell that does not exist in the selected year: outline only */
.cg-cell { cursor: pointer; }
/* A cell that does not exist in the selected year. The stroke colour is set
   inline by the viewer to the cell's own status colour: the rule below paints
   every cell's stroke in the page background so neighbours read as separate,
   which left an absent cell as white-on-white in light mode -- invisible, and
   contradicting the legend. */
.cg-cell.cg-absent { fill: none !important; stroke-dasharray: 2.5 2; opacity: 1; }
.cg-cells path { stroke: var(--cg-bg); stroke-linejoin: round; transition: opacity 0.25s; }
.cg-cells path:hover { stroke: var(--cg-fg); }

/* +1 / -1 on the cells that moved */
.cg-clabel {
  fill: #fff;
  font-weight: 700;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
  user-select: none;
  paint-order: stroke;
  stroke: rgba(0, 0, 0, 0.3);
  transition: opacity 0.25s;
}

/* the row of changed states under the map */
.cg-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.cg-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  border: 1px solid var(--cg-line);
  border-radius: 999px;
  background: var(--cg-panel);
  cursor: pointer;
  user-select: none;
}
.cg-chip:hover { border-color: var(--cg-fg); }
.cg-chip.is-active { border-color: var(--cg-fg); background: var(--cg-fg); color: var(--cg-bg); }
.cg-chip b { font-weight: 700; }