.msr-shell {
  --msr-bg: #09111d;
  --msr-panel: rgba(10, 16, 26, 0.9);
  --msr-panel-border: rgba(255, 255, 255, 0.16);
  --msr-text: #f5f7fb;
  --msr-muted: #b8c3d6;
  --msr-accent: #ffd34d;
  --msr-accent-2: #7ce3ff;
  color: var(--msr-text);
  font-family: Arial, Helvetica, sans-serif;
  max-width: 840px;
  margin: 24px auto;
  padding: 18px 20px 20px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at top, rgba(74, 144, 226, 0.18), transparent 35%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    linear-gradient(180deg, #0a1321 0%, #111b2d 55%, #09111d 100%);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}

.msr-shell * {
  box-sizing: border-box;
}

.msr-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.msr-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--msr-text);
}

.msr-subtitle {
  color: var(--msr-muted);
  font-size: 14px;
}

.msr-game {
  width: 100%;
}

.msr-canvas {
  display: block;
  width: 800px;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  border: 2px solid rgba(255, 255, 255, 0.14);
  background: #1b2432;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.msr-controls {
  width: 800px;
  max-width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr 1.8fr;
  gap: 12px;
  margin-top: 14px;
  align-items: stretch;
}

.msr-shell button {
  appearance: none;
  border: 0;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.3px;
  padding: 14px 16px;
  transition: transform 90ms ease, filter 120ms ease, opacity 120ms ease;
  color: #0d1420;
  background: linear-gradient(180deg, #ffe387 0%, #ffcb33 100%);
  box-shadow: 0 10px 24px rgba(255, 200, 58, 0.22);
}

.msr-shell button:hover {
  filter: brightness(1.03);
}

.msr-shell button:active {
  transform: translateY(1px) scale(0.995);
}

.msr-shell .msr-secondary {
  background: linear-gradient(180deg, #9ceaff 0%, #66d5f7 100%);
  box-shadow: 0 10px 24px rgba(106, 219, 255, 0.2);
}

.msr-shell button:disabled {
  cursor: default;
  opacity: 0.45;
  filter: grayscale(0.15);
  transform: none;
  box-shadow: none;
}

.msr-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--msr-panel-border);
  background: var(--msr-panel);
  min-height: 60px;
}

.msr-status-text {
  line-height: 1.35;
}

.msr-status-main {
  font-size: 15px;
  font-weight: 700;
  color: var(--msr-text);
}

.msr-status-sub {
  color: var(--msr-muted);
  font-size: 12px;
  margin-top: 2px;
}

.msr-footer-note {
  width: 800px;
  max-width: 100%;
  margin-top: 10px;
  color: var(--msr-muted);
  font-size: 12px;
  text-align: center;
}

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