:root {
  --ink: #07161b;
  --ink-2: #0d2229;
  --chart: #e9dfc6;       /* chart paper */
  --chart-dim: #b9b098;
  --brass: #c79a45;
  --g1: #c08ae0;          /* Civ I   - violet */
  --g2: #e8738a;          /* Civ II  - rose */
  --g3: #e8894a;          /* Civ III - orange */
  --g4: #b6d45c;          /* Civ IV  - lime */
  --g5: #6f9be0;          /* Civ V  - cobalt */
  --g6: #e5b13f;          /* Civ VI - gold */
  --g7: #58c49a;          /* Civ VII - jade */
  --line: rgba(233, 223, 198, .16);
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Hanken Grotesk", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--ink); color: var(--chart); font: 15px/1.5 var(--sans); overflow: hidden; }
#globe { position: fixed; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; }
#globe:active { cursor: grabbing; }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; }

.masthead { position: fixed; left: 24px; top: 20px; max-width: 360px; pointer-events: none; }
.masthead h1 { font: 400 44px/1 var(--serif); margin: 0 0 6px; letter-spacing: -.01em; }
.masthead p { margin: 0; color: var(--chart-dim); font-size: 14px; }

.panel {
  position: fixed; left: 24px; top: 132px; bottom: 64px; width: 320px;
  background: rgba(7, 22, 27, .82); backdrop-filter: blur(10px);
  border: 1px solid var(--line); border-radius: 6px;
  display: flex; flex-direction: column; overflow: hidden;
}
.filters { padding: 14px 14px 10px; border-bottom: 1px solid var(--line); display: grid; gap: 10px; }
fieldset { border: 0; margin: 0; padding: 0; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
legend { float: left; width: 44px; padding: 0; color: var(--chart-dim); font-size: 13px; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span { display: inline-block; padding: 4px 10px; border: 1px solid var(--line); border-radius: 99px; cursor: pointer; font-size: 13px; color: var(--chart-dim); transition: background .15s, color .15s; }
.chip .logo { display: block; height: 22px; width: auto; } /* numerals cut from each game's logo, one shared height */
.chip span { padding: 6px 12px; }
.chip.g1 input:checked + span, .chip.g2 input:checked + span, .chip.g3 input:checked + span, .chip.g4 input:checked + span, .chip.g5 input:checked + span, .chip.g6 input:checked + span, .chip.g7 input:checked + span { background: var(--ink-2); box-shadow: inset 0 0 0 2px var(--c); border-color: var(--c); }
.chip.g1 { --c: var(--g1); } .chip.g2 { --c: var(--g2); } .chip.g3 { --c: var(--g3); } .chip.g4 { --c: var(--g4); } .chip.g5 { --c: var(--g5); } .chip.g6 { --c: var(--g6); } .chip.g7 { --c: var(--g7); }
.chip.g1 input:not(:checked) + span, .chip.g2 input:not(:checked) + span, .chip.g3 input:not(:checked) + span, .chip.g4 input:not(:checked) + span, .chip.g5 input:not(:checked) + span, .chip.g6 input:not(:checked) + span, .chip.g7 input:not(:checked) + span { opacity: .4; }
.chip input:checked + span { background: var(--chart); color: var(--ink); border-color: var(--chart); }
.chip input:focus-visible + span { outline: 2px solid var(--brass); outline-offset: 2px; }
#search { width: 100%; background: var(--ink-2); border: 1px solid var(--line); color: var(--chart); border-radius: 4px; padding: 8px 10px; font: inherit; }
#search::placeholder { color: var(--chart-dim); }
.count { margin: 0; font-size: 13px; color: var(--chart-dim); }

.list { list-style: none; margin: 0; padding: 4px 0; overflow-y: auto; flex: 1; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.list button { width: 100%; text-align: left; background: none; border: 0; color: inherit; font: inherit; padding: 7px 14px; cursor: pointer; display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; }
.list button:hover, .list button[aria-current="true"] { background: rgba(233, 223, 198, .08); }
.list .n { font-weight: 500; }
.list .p { grid-column: 1; color: var(--chart-dim); font-size: 12.5px; }
.dots { grid-row: 1 / span 2; grid-column: 2; display: flex; gap: 3px; align-items: center; }
.dots i { width: 8px; height: 8px; border-radius: 50%; }
.dots .g1 { background: var(--g1); } .dots .g2 { background: var(--g2); } .dots .g3 { background: var(--g3); } .dots .g4 { background: var(--g4); } .dots .g5 { background: var(--g5); } .dots .g6 { background: var(--g6); } .dots .g7 { background: var(--g7); }

.card {
  position: fixed; right: 24px; top: 24px; width: 340px; max-height: calc(100% - 100px); overflow-y: auto;
  background: rgba(7, 22, 27, .86); backdrop-filter: blur(10px); color: var(--chart);
  border: 1px solid var(--line); border-radius: 6px; padding: 22px 22px 20px;
  box-shadow: 0 24px 60px rgba(0,0,0,.5); scrollbar-width: thin; scrollbar-color: var(--line) transparent;
  animation: unfold .28s ease-out;
}
@keyframes unfold { from { opacity: 0; transform: translateX(14px) scale(.98); } }
.card h2 { font: 400 34px/1.05 var(--serif); margin: 0 28px 4px 0; }
.card .where { margin: 0 0 14px; color: var(--chart-dim); }
.card .close { position: absolute; right: 12px; top: 10px; background: none; border: 0; font-size: 26px; line-height: 1; cursor: pointer; color: var(--chart-dim); padding: 4px 8px; }
.card .close:hover { color: var(--chart); }
.card .kind { font-style: italic; font-family: var(--serif); font-size: 17px; margin: 0 0 12px; color: var(--brass); }
.editions { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 4px; }
.editions li { display: grid; grid-template-columns: 76px 1fr; gap: 14px; align-items: center; padding: 8px 0; border-top: 1px solid var(--line); }
/* in-game art shown whole, never cropped */
.editions .art { width: 76px; height: 64px; display: grid; place-items: center; }
.editions img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.editions .art svg { width: 48px; height: 48px; }
.editions b { display: block; font-weight: 700; }
.editions span { font-size: 13px; color: var(--c); }
.editions .g1 { --c: var(--g1); } .editions .g2 { --c: var(--g2); } .editions .g3 { --c: var(--g3); } .editions .g4 { --c: var(--g4); } .editions .g5 { --c: var(--g5); } .editions .g6 { --c: var(--g6); } .editions .g7 { --c: var(--g7); }
.preview { display: block; width: 100%; height: 170px; border: 1px solid var(--line); border-radius: 4px; margin: 0 0 14px; background: var(--ink-2); }
.links { display: flex; gap: 8px; flex-wrap: wrap; }
.maps { display: inline-block; background: var(--chart); color: var(--ink); padding: 9px 14px; border-radius: 4px; text-decoration: none; font-weight: 700; font-size: 14px; }
.maps:hover { background: #fff6dc; }
.maps.alt { background: transparent; color: var(--chart); box-shadow: inset 0 0 0 1px var(--chart-dim); }
.maps.alt:hover { background: rgba(233, 223, 198, .1); }
.coords { margin: 10px 0 0; font-size: 12.5px; color: var(--chart-dim); font-variant-numeric: tabular-nums; }

.toggle { display: none; }
.legend { position: fixed; left: 24px; bottom: 20px; right: 24px; display: flex; gap: 20px; align-items: center; font-size: 13px; color: var(--chart-dim); pointer-events: none; }
.legend .fine { margin-left: auto; font-size: 12px; opacity: .8; }
.k { width: 16px; height: 16px; fill: var(--chart); margin-right: 7px; vertical-align: -3px; }
.pips i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 3px; }
.pips i:last-of-type { margin-right: 7px; }
.pips .g1 { background: var(--g1); } .pips .g2 { background: var(--g2); } .pips .g3 { background: var(--g3); } .pips .g4 { background: var(--g4); } .pips .g5 { background: var(--g5); } .pips .g6 { background: var(--g6); } .pips .g7 { background: var(--g7); }

.tip { position: fixed; pointer-events: none; background: var(--ink); border: 1px solid var(--line); padding: 4px 9px; border-radius: 3px; font-size: 13px; white-space: nowrap; transform: translate(12px, -50%); }

@media (max-width: 760px) {
  .masthead { left: 16px; top: 14px; }
  .masthead h1 { font-size: 32px; }
  .masthead p { display: none; }
  .panel { left: 0; right: 0; top: auto; bottom: 0; width: auto; height: 52%; border-radius: 10px 10px 0 0; transform: translateY(100%); transition: transform .25s; z-index: 5; }
  .panel.open { transform: none; }
  .toggle { display: block; position: fixed; right: 16px; top: 16px; z-index: 6; background: var(--chart); color: var(--ink); border: 0; border-radius: 99px; padding: 8px 16px; font: 700 14px var(--sans); }
  .card { left: 12px; right: 12px; top: auto; bottom: 12px; width: auto; max-height: 55%; z-index: 7; }
  .legend { display: none; }
}
@media (prefers-reduced-motion: reduce) { .card { animation: none; } .panel { transition: none; } }

.editions a.wiki { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.editions a.wiki:hover { color: var(--chart); }
.card .note { margin: 0 0 14px; padding: 9px 12px; border-left: 2px solid var(--brass); background: rgba(199, 154, 69, .08); color: var(--chart-dim); font-size: 13px; line-height: 1.45; }
/* tiny pixel-art icons from Civ I and II stay crisp */
.editions img.px { image-rendering: pixelated; width: 100%; }

.chip-all { font: inherit; font-size: 13px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 99px; background: none; color: var(--chart-dim); cursor: pointer; }
.chip-all.on { background: var(--chart); color: var(--ink); border-color: var(--chart); }
.chip-all:not(.on):hover { color: var(--chart); }