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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--page-bg, #1a1a2e);
  font-family: 'Noto Sans KR', -apple-system, sans-serif;
}

#app {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
}

/* 좌측: 보드 영역 */
#board-area {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 0;
}

#game-canvas {
  display: block;
}

#ui-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* 우측: 사이드바 */
#sidebar {
  width: 280px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  overflow-y: auto;
}

#control-panel {
  pointer-events: auto;
}