:root {
  --bg-1: #1b2f45;
  --bg-2: #2b4d6f;
  --panel-bg: #f2eecb;
  --panel-border: #9f8f55;
  --ink: #1d1b18;
  --accent: #1d8f5a;
  --accent-dark: #11663f;
  --danger: #8a2e2e;
  --key-light: #e6e2d0;
  --key-dark: #b5ae93;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
  font-family: "Lucida Console", "Courier New", monospace;
}

.app-shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px;
}

.top-bar {
  margin-bottom: 12px;
  padding: 12px;
  border: 4px solid #122033;
  background: #d7f0ff;
}

.top-bar h1 {
  margin: 0;
  font-size: 1.2rem;
}

.top-bar p {
  margin: 8px 0 0;
  font-size: 0.85rem;
}

.layout {
  display: grid;
  grid-template-columns: minmax(320px, 500px) 1fr;
  gap: 16px;
}

.game-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

#gameCanvas {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 3 / 4;
  border: 4px solid #111;
  image-rendering: pixelated;
  background: #6ba9ff;
}

.mode-hint {
  margin: 0;
  padding: 6px 8px;
  border: 2px solid #111;
  background: #f5f0ca;
  font-size: 0.75rem;
  text-align: center;
}

.side-panel {
  padding: 14px;
  border: 4px solid var(--panel-border);
  background: var(--panel-bg);
}

.side-panel h2,
.side-panel h3 {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 10px;
  margin-bottom: 12px;
  font-size: 0.75rem;
}

.stats-grid strong {
  min-width: 80px;
  text-align: right;
}

.live-grid {
  background: #e2dbb5;
  padding: 10px;
  border: 2px solid #8f8151;
}

.tf-grid {
  margin-bottom: 8px;
}

.tf-chart {
  width: 100%;
  height: auto;
  display: block;
  border: 2px solid #4a5f77;
  background: #111f2b;
  margin-bottom: 12px;
  image-rendering: pixelated;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

button {
  border: 2px solid #1f3d26;
  background: var(--accent);
  color: #f7fff8;
  padding: 8px 10px;
  font: inherit;
  font-size: 0.75rem;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

button:active {
  transform: translateY(1px);
}

#pauseBtn {
  background: #8f7d2a;
  border-color: #504615;
}

#pauseBtn:hover {
  background: #756621;
}

#resetBtn {
  background: var(--danger);
  border-color: #4f1818;
}

#resetBtn:hover {
  background: #742626;
}

.mode-select {
  margin: 12px 0 0;
  border: 2px solid #756a3f;
  padding: 8px;
  font-size: 0.75rem;
}

.mode-select legend {
  padding: 0 4px;
}

.mode-select label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.space-wrap {
  margin-bottom: 12px;
  padding: 8px;
  border: 2px solid #8c7e4a;
  background: #dfd8b1;
}

.space-key {
  width: 100%;
  max-width: 230px;
  margin: 0 auto;
  text-align: center;
  padding: 12px;
  border: 2px solid #38342c;
  border-bottom-width: 5px;
  background: var(--key-light);
  color: #2a2722;
}

.space-key.pressed {
  background: var(--key-dark);
  transform: translateY(2px);
  border-bottom-width: 3px;
}

.space-status {
  margin: 8px 0 0;
  text-align: center;
  font-size: 0.72rem;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .side-panel {
    max-width: 650px;
    margin: 0 auto;
    width: 100%;
  }
}