*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'Arial', sans-serif;
  font-weight: 200;
  background: #fff;
  color: #1a1a1a;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

body {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 20px;
}

.card {
  width: 100%;
  max-width: 1200px;
  height: calc(100vh - 40px);
  background: #f5f5f5;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 20px 0;
  flex-shrink: 0;
}

.header .title {
  font-size: 1.2rem;
  font-weight: 300;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.header .logo { opacity: 0.85; }

/* ── Main content: game left, mapping right ── */

.content {
  flex: 1;
  display: flex;
  flex-direction: row;
  gap: 20px;
  padding: 8px 20px 12px;
  min-height: 0;
}

/* ── Game section (left) ── */

.game-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.status {
  font-size: 0.72rem;
  font-weight: 300;
  color: #999;
  margin-bottom: 6px;
  flex-shrink: 0;
}
.status.ok { color: #2a7a2a; }
.status.err { color: #d32f2f; }

#canvasWrap {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  border-radius: 6px;
  overflow: hidden;
}

.canvas-ratio {
  position: relative;
  width: 100%;
  max-height: 100%;
  aspect-ratio: 8 / 5;
}

#doomCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

.controls-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 6px;
  flex-shrink: 0;
}

.controls-bar .fader-display {
  display: flex;
  gap: 8px;
  font-size: 0.65rem;
  font-variant-numeric: tabular-nums;
  color: #888;
}

.controls-bar .fader-display span {
  display: inline-block;
  min-width: 42px;
}

.controls-bar .btn-display {
  font-size: 0.65rem;
  color: #888;
  margin-left: auto;
}

/* ── Mapping section (right) ── */

.mapping {
  width: 400px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.sp1-img {
  width: 100%;
  height: auto;
  opacity: 0.6;
}

.mapping-legend {
  display: flex;
  flex-direction: row;
  gap: 24px;
  justify-content: center;
}

.legend-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.legend-title {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #999;
  margin-bottom: 2px;
}

.legend-row {
  font-size: 0.75rem;
  font-weight: 300;
  color: #555;
  line-height: 1.6;
}

.legend-key {
  display: inline-block;
  min-width: 26px;
  font-weight: 500;
  color: #333;
}

/* ── Buttons (unused but kept) ── */

.btn {
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 400;
  padding: 10px 32px;
  border: 1.5px solid #1a1a1a;
  border-radius: 8px;
  background: #f0f0ee;
  color: #1a1a1a;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn:hover:not(:disabled) { background: #1a1a1a; color: #f0f0ee; }
.btn:disabled { border-color: #ccc; color: #ccc; cursor: default; }

/* ── Responsive: stack vertically on narrow screens ── */

@media (max-width: 700px) {
  .content {
    flex-direction: column;
    gap: 10px;
  }
  .mapping {
    width: 100%;
    flex-direction: row;
    align-items: center;
    gap: 16px;
  }
  .sp1-img { width: 80px; }
  .mapping-legend { flex-direction: row; gap: 20px; }
}