:root {
  color-scheme: dark;
  --bg: #101b24;
  --panel: #172630;
  --line: #2b3e49;
  --text: #e7efeb;
  --muted: #96aaaf;
  --green: #70dab2;
  --gold: #e1bf78;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    16px system-ui,
    sans-serif;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
  color: inherit;
  background: #20323d;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px 13px;
  cursor: pointer;
  transition:
    background 0.15s,
    transform 0.15s;
}
button:hover {
  background: #304854;
}
button:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}
button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
button.active,
button.selected {
  border-color: var(--green);
  background: #25483f;
  color: #9cf1cf;
}
header {
  height: 80px;
  border-bottom: 1px solid var(--line);
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 15px;
}
.brand {
  font:
    700 23px Georgia,
    sans-serif;
  letter-spacing: 1.4px;
  color: var(--text);
  text-decoration: none;
}
.brand-to {
  font-style: italic;
  font-size: 0.75em;
  color: var(--gold);
  letter-spacing: 0;
}
.brand small {
  display: block;
  font:
    10px system-ui,
    sans-serif;
  letter-spacing: 3px;
  color: var(--muted);
  margin: 5px 0 0 30px;
}
#clock {
  margin-left: auto;
  color: var(--muted);
  font-size: 14px;
}
#legacyBtn {
  color: var(--gold);
}
main {
  max-width: 1800px;
  margin: auto;
  padding: 28px 32px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 335px;
  gap: 25px;
}
.world-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin: 3px 0 22px;
}
.eyebrow {
  color: var(--green);
  letter-spacing: 2px;
  font-size: 11px;
  font-weight: 700;
}
h1 {
  font:
    500 34px system-ui,
    sans-serif;
  margin: 9px 0 0;
  letter-spacing: -1px;
}
h2 {
  font:
    500 18px system-ui,
    sans-serif;
  margin: 0;
}
h3 {
  font-size: 15px;
  font-weight: 500;
}
.speed {
  display: flex;
  gap: 4px;
}
.speed button {
  padding: 8px 10px;
  font-size: 14px;
}
.map-wrap {
  position: relative;
  border: 1px solid #3c5359;
  background: #162e3e;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 1.52;
}
canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}
.map-tag {
  position: absolute;
  top: 18px;
  left: 20px;
  color: #bed0d4;
  font-size: 10px;
  letter-spacing: 2px;
  pointer-events: none;
}
.map-legend {
  position: absolute;
  bottom: 17px;
  left: 20px;
  display: flex;
  gap: 19px;
  background: #10222cdd;
  padding: 9px 12px;
  border-radius: 5px;
  font-size: 12px;
  color: #c2d1d1;
  pointer-events: none;
}
.map-legend i {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  margin-right: 6px;
}
.territory {
  padding: 20px 1px;
}
.territory > div:first-child {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 2px;
}
.territory b {
  color: var(--green);
  font: 500 19px system-ui;
}
.bar {
  height: 5px;
  background: #2c424a;
  border-radius: 10px;
  overflow: hidden;
  margin: 12px 0 8px;
}
.bar i {
  height: 100%;
  width: 0;
  background: var(--green);
  display: block;
  transition: width 0.4s;
}
small {
  color: var(--muted);
  font-size: 12px;
}
.bottom-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 18px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 20px;
  margin-bottom: 16px;
}
.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.panel-heading > span {
  font-size: 11px;
  color: var(--muted);
}
p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  margin: 11px 0 15px;
}
.live {
  color: var(--green) !important;
  letter-spacing: 2px;
}
.civ-panel h2 {
  font-size: 27px;
  margin-top: 10px;
}
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 22px;
}
.stats span,
.stats small {
  display: block;
  font-size: 12px;
}
.stats strong {
  display: block;
  font: 500 29px system-ui;
  margin: 6px 0;
  color: var(--gold);
}
.stats > div + div strong {
  color: var(--text);
}
.science i {
  background: var(--gold);
}
#ageTrack {
  display: flex;
  gap: 5px;
  margin-top: 16px;
}
#ageTrack span {
  height: 4px;
  flex: 1;
  background: #344850;
}
#ageTrack .done {
  background: var(--gold);
}
.priorities {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  margin: 17px 0;
}
.priorities button {
  font-size: 13px;
  text-align: left;
  padding: 10px;
}
.action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  text-align: left;
  margin-top: 8px;
  background: #1b2e38;
}
.action b {
  display: block;
  font-size: 14px;
  font-weight: 500;
}
.action small {
  display: block;
  font-size: 11px;
  margin-top: 4px;
}
.action em {
  font-style: normal;
  color: var(--gold);
  font-size: 13px;
  white-space: nowrap;
}
.hint {
  font-size: 12px;
  line-height: 1.6;
}
.event {
  padding: 9px 0;
  border-bottom: 1px solid #2a3c46;
  font-size: 13px;
  line-height: 1.4;
  display: flex;
  gap: 12px;
}
.event time {
  font-size: 11px;
  color: #819da5;
  min-width: 37px;
}
.rival {
  border-bottom: 1px solid var(--line);
  padding: 11px 0;
  font-size: 13px;
}
.rival > div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.rival small {
  display: block;
  margin-top: 6px;
}
.rival button {
  font-size: 11px;
  padding: 5px 8px;
  margin: 8px 5px 0 0;
}
.rival .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 7px;
}
dialog {
  background: #162630;
  color: var(--text);
  border: 1px solid #4a625f;
  border-radius: 15px;
  width: min(740px, 94vw);
  padding: 34px;
  box-shadow: 0 30px 120px #0009;
  max-height: 92vh;
}
dialog::backdrop {
  background: #07131dcc;
  backdrop-filter: blur(6px);
}
dialog h2 {
  font-size: 37px;
  margin: 12px 0;
}
dialog p {
  font-size: 15px;
}
.choices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.choices button {
  text-align: left;
  padding: 17px 13px;
}
.choices b,
.choices span,
.choices small {
  display: block;
}
.choices b {
  font: 500 18px system-ui;
}
.choices span {
  font-size: 13px;
  margin: 9px 0;
}
.choices small {
  font-size: 11px;
  line-height: 1.6;
}
.primary {
  background: var(--green);
  color: #0e2b23;
  font-weight: 700;
  width: 100%;
  padding: 14px;
  margin-top: 18px;
  border: 0;
}
.primary:hover {
  background: #a1eed0;
}
.quiet {
  display: block;
  border: 0;
  background: none;
  margin: 10px auto 0;
  font-size: 13px;
}
#toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: #d7f2e6;
  color: #14342c;
  padding: 12px 22px;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 10;
  max-width: 90vw;
}
#toast.show {
  opacity: 1;
}
#decision button {
  width: 100%;
  margin-top: 7px;
  font-size: 13px;
}
#upgrades button {
  width: 100%;
  margin-top: 10px;
  text-align: left;
}
#modeBadge {
  text-transform: uppercase;
}
@media (min-width: 1500px) {
  .map-wrap {
    aspect-ratio: 1.75;
  }
}
@media (max-width: 1000px) {
  main {
    padding: 22px 18px;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 16px;
  }
  header {
    padding: 0 20px;
  }
  .brand small {
    display: none;
  }
  .world-top {
    display: block;
  }
  .speed {
    margin-top: 18px;
  }
  .bottom-grid {
    grid-template-columns: 1fr;
  }
  .panel {
    padding: 16px;
  }
  .map-wrap {
    aspect-ratio: 1;
  }
}
@media (max-width: 740px) {
  header {
    height: auto;
    min-height: 73px;
    flex-wrap: wrap;
    gap: 9px;
    padding: 15px;
  }
  header button {
    font-size: 12px;
    padding: 8px;
  }
  #clock {
    font-size: 11px;
  }
  .brand {
    font-size: 20px;
  }
  .brand small {
    display: none;
  }
  main {
    grid-template-columns: 1fr;
    padding: 18px 12px;
  }
  .world-top {
    display: flex;
  }
  .speed {
    margin: 0;
    gap: 2px;
  }
  .speed button {
    padding: 7px;
  }
  h1 {
    font-size: 26px;
  }
  .eyebrow {
    font-size: 9px;
  }
  .map-wrap {
    aspect-ratio: 1.15;
  }
  .map-tag {
    font-size: 8px;
  }
  .bottom-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .event {
    font-size: 12px;
    gap: 5px;
  }
  aside {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  aside .panel {
    margin: 0;
  }
  .choices {
    gap: 7px;
  }
  .choices button {
    padding: 12px 9px;
  }
  .choices b {
    font-size: 16px;
  }
  dialog {
    padding: 24px 18px;
  }
  dialog h2 {
    font-size: 30px;
  }
  #decisionPanel {
    grid-column: 2;
  }
  #newBtn {
    margin-left: auto;
  }
}
@media (max-width: 430px) {
  aside {
    grid-template-columns: 1fr;
  }
  #decisionPanel {
    grid-column: auto;
  }
  .bottom-grid {
    grid-template-columns: 1fr;
  }
  .choices {
    grid-template-columns: 1fr;
  }
  .choices button {
    padding: 10px;
  }
  .choices span {
    margin: 5px 0;
  }
  .world-top {
    align-items: flex-start;
  }
  .speed {
    flex-wrap: wrap;
    max-width: 145px;
  }
}
[hidden] {
  display: none !important;
}

.game-shortcuts {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  background: #101b24;
  border-bottom: 1px solid var(--line);
  padding: 4px 16px;
}
.game-shortcuts a {
  color: var(--green);
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 13px;
}
#guide,
#map {
  scroll-margin-top: 110px;
}
#map:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: -3px;
}
#saveNotice {
  color: var(--gold);
  border-left: 3px solid var(--gold);
  padding-left: 12px;
}
@media (max-width: 740px) {
  .speed button,
  .rival button,
  header button {
    min-height: 44px;
    min-width: 44px;
  }
  .world-top {
    flex-wrap: wrap;
  }
  .speed {
    max-width: none;
  }
}
.map-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
}
.map-tools button {
  min-height: 48px;
}
.map-wrap {
  overflow: auto;
  scrollbar-width: thin;
  touch-action: pan-x pan-y;
}
@media (min-width: 741px) and (max-width: 1180px) {
  main {
    grid-template-columns: 1fr;
    padding: 22px;
  }
  header {
    flex-wrap: wrap;
    height: auto;
    min-height: 90px;
    padding: 14px 22px;
  }
  .world-top {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }
  .map-wrap {
    aspect-ratio: 1.55;
  }
  aside {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 16px;
  }
  .bottom-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  button,
  .speed button {
    min-height: 48px;
  }
  .game-shortcuts a {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
  }
  dialog {
    max-width: calc(100vw - 40px);
    max-height: 85dvh;
    overflow: auto;
  }
}
@media (pointer: coarse) {
  button {
    min-height: 48px;
  }
}