:root {
  color-scheme: dark;
  --bg: #0b1020;
  --panel: #11182d;
  --panel-strong: #17213d;
  --line: #36425f;
  --text: #f4edd7;
  --muted: #c8bfa3;
  --gold: #e7b85b;
  --blue: #5aa9ff;
  --red: #e65f5f;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: ui-serif, "Hiragino Mincho ProN", "Yu Mincho", serif;
}

button {
  min-height: 34px;
  border: 1px solid #8f6d34;
  border-radius: 4px;
  background: #231a15;
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  border-color: var(--gold);
  background: #372719;
}

.shell {
  width: min(1100px, 100vw);
  margin: 0 auto;
  padding: 16px;
}

.game {
  position: relative;
  border: 1px solid var(--line);
  background: #0e1528;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
}

h2 {
  font-size: 16px;
  color: var(--gold);
}

.badge {
  min-width: 116px;
  padding: 7px 10px;
  border: 1px solid var(--gold);
  border-radius: 4px;
  color: var(--gold);
  text-align: center;
}

.stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 0;
}

#gameCanvas {
  width: 100%;
  max-height: calc(100vh - 160px);
  min-height: 420px;
  background: #233c2a;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.panel {
  border-left: 1px solid var(--line);
  background: var(--panel-strong);
  padding: 14px;
}

.unit-info {
  min-height: 96px;
  margin: 12px 0;
  padding: 10px;
  border: 1px solid var(--line);
  background: #0b1020;
  white-space: pre-line;
}

.commands {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.log {
  min-height: 140px;
  margin: 12px 0 0;
  padding: 10px;
  border: 1px solid var(--line);
  background: #080c18;
  color: var(--muted);
  font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap;
}

.help {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.dialogue {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: end center;
  padding: 24px;
  background: rgba(3, 6, 14, 0.28);
}

.dialogue.hidden {
  display: none;
}

.dialogue-box {
  width: min(860px, calc(100vw - 32px));
  border: 2px solid var(--gold);
  border-radius: 6px;
  background: rgba(10, 15, 31, 0.96);
  padding: 18px;
}

.dialogue-box strong {
  display: block;
  color: var(--gold);
  margin-bottom: 8px;
}

.dialogue-box p {
  min-height: 48px;
  line-height: 1.8;
}

#nextBtn {
  float: right;
  min-width: 96px;
  margin-top: 12px;
}

@media (max-width: 820px) {
  .stage {
    grid-template-columns: 1fr;
  }

  .panel {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  #gameCanvas {
    min-height: 320px;
  }
}