:root {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
  touch-action: manipulation;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100dvh;
  overflow: hidden;
  background: #0a0a0a;
  color: #f5f5f5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: none;
}

main {
  height: 100%;
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  padding:
    max(60px, env(safe-area-inset-top))
    16px
    max(20px, env(safe-area-inset-bottom));
  gap: 12px;
}

.score-bar {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.score-box {
  flex: 1;
  background: #161616;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  padding: 8px 12px;
  text-align: center;
  min-width: 0;
}

.score-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #a0a0a0;
}

.round-val,
.time-val {
  display: block;
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: #f5f5f5;
  margin-top: 2px;
  line-height: 1.1;
}

.new-btn {
  flex: 0 0 auto;
  font: inherit;
  color: #fff;
  background: #4f9eff;
  border: none;
  border-radius: 12px;
  padding: 0 18px;
  min-height: 56px;
  cursor: pointer;
  font-weight: 700;
  font-size: 14px;
  -webkit-tap-highlight-color: transparent;
}

.new-btn:active { background: #3d8ae8; }

#game {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 보드 + 트레이 + 조각 레이어를 한 좌표계에 담는다.
   조각 위치를 이 wrap 기준 px로 계산하므로 relative 필수. */
.jig-wrap {
  position: relative;
  width: min(100%, 56dvh);
}

.jig-board {
  /* ::after 힌트 마스크가 보드에만 걸리도록 — relative가 없으면 .jig-wrap 기준이
     되어 트레이까지 덮는다. */
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  /* 배치 힌트로 흐린 원본을 깔아 둔다. 25조각을 아무 단서 없이 맞추는 건
     폰에서 즐겁지 않다 — 캐주얼 직소가 보편적으로 쓰는 방식. */
  background-size: cover;
  background-position: center;
  background-color: #141414;
  box-shadow: inset 0 0 0 1px #2a2a2a;
  opacity: 1;
}

/* 힌트 이미지는 아주 흐리게. 조각이 올라오면 그 위를 덮는다. */
.jig-board::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: #0a0a0a;
  opacity: 0.86;
  pointer-events: none;
}

.jig-tray {
  margin-top: 12px;
  width: 100%;
  height: 84px;
  border-radius: 12px;
  background: #131313;
  border: 1px dashed #2f2f2f;
}

.jig-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.jig-piece {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: auto;
  cursor: grab;
  /* 드래그 중 페이지가 따라 움직이면 안 된다. */
  touch-action: none;
  filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.55));
  transition: transform 0.14s ease;
}

.jig-piece[hidden] { display: none; }

.jig-piece.dragging {
  cursor: grabbing;
  transition: none;
  filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.7));
}

.jig-piece.locked {
  pointer-events: none;
  cursor: default;
  filter: none;
}

.home-link,
.hof-link {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  z-index: 10;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  text-decoration: none;
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background 0.15s ease;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.home-link { left:  max(12px, env(safe-area-inset-left)); }
.hof-link  { right: max(12px, env(safe-area-inset-right)); }

@media (hover: hover) {
  .home-link:hover,
  .hof-link:hover { background: rgba(0, 0, 0, 0.55); }
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  padding: 20px;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.overlay[hidden] { display: none; }

.overlay-card {
  background: #161616;
  border: 1px solid #2a2a2a;
  border-radius: 18px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
  min-width: 240px;
  max-width: 320px;
  width: 100%;
}

.overlay-card h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.overlay-score {
  margin: 0;
  font-size: 48px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  line-height: 1;
}

.overlay-meta { margin: -4px 0 4px; font-size: 14px; font-weight: 600; color: #a0a0a0; }

.overlay-card button {
  font: inherit;
  color: #fff;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 12px 20px;
  min-height: 44px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  width: 100%;
  -webkit-tap-highlight-color: transparent;
}

.overlay-card button:active { background: rgba(255, 255, 255, 0.18); }
.overlay-card .save-btn { background: #4f9eff; border-color: #4f9eff; }
.overlay-card .save-btn:active { background: #3d8ae8; }