/* ==========================================================================
   Play — 게임 플레이 페이지
   ========================================================================== */

/* ── Canvas Container ── */
.canvas-wrapper {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin-inline: auto;
  background-color: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.canvas-wrapper__canvas {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #111;
}

/* ── Loading Overlay ── */
.canvas-wrapper__loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.85);
  color: #FFFFFF;
  gap: var(--space-md);
  z-index: 10;
}

.canvas-wrapper__loading-spinner {
  width: 3rem;
  height: 3rem;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--color-accent);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.canvas-wrapper__loading-text {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
}

/* ── Game Controls Bar ── */
.game-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin-inline: auto;
  padding: var(--space-md) 0;
}

.game-controls__info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.game-controls__title {
  font-size: var(--font-md);
  font-weight: 700;
}

.game-controls__genre {
  font-size: var(--font-xs);
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
}

.game-controls__actions {
  display: flex;
  gap: var(--space-sm);
}

.game-controls__btn {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background-color: var(--color-surface);
  transition: all var(--transition-fast);
}

.game-controls__btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.game-controls__btn--primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #FFFFFF;
}

.game-controls__btn--primary:hover {
  background-color: var(--color-accent-hover);
}

/* ── Key Guide (데스크탑) ── */
.key-guide {
  max-width: 960px;
  margin-inline: auto;
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.key-guide__title {
  font-size: var(--font-sm);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text-sub);
}

.key-guide__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.key-guide__item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-sm);
}

.key-guide__key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 1.75rem;
  padding-inline: var(--space-sm);
  font-size: var(--font-xs);
  font-weight: 700;
  font-family: var(--font-mono);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .key-guide {
    display: none;
  }

  .game-controls {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: stretch;
    text-align: center;
  }

  .game-controls__actions {
    justify-content: center;
  }
}