@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

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

body {
  background: #e8f9ee;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  font-family: 'Press Start 2P', monospace;
  background-image:
    repeating-linear-gradient(0deg, rgba(160,220,180,0.18) 0px, rgba(160,220,180,0.18) 1px, transparent 1px, transparent 40px),
    repeating-linear-gradient(90deg, rgba(160,220,180,0.18) 0px, rgba(160,220,180,0.18) 1px, transparent 1px, transparent 40px);
}

/* ═══════════════════════════════════════
   DESKTOP LAYOUT
═══════════════════════════════════════ */
#mobile-top    { display: none; }
#touch-controls { display: none; }

#app {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 16px;
}

#side-left, #side-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 140px;
}

/* ── Shared panel boxes ───────────────────────────────────── */
.panel-box {
  background: #f0f8ff;
  border: 3px solid #7ab8d8;
  border-radius: 6px;
  box-shadow: 4px 4px 0 #5a9cbe;
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.panel-label { font-size: 8px; color: #5a8caa; letter-spacing: 1px; }
.panel-value { font-size: 18px; color: #0a3a5a; min-width: 80px; text-align: center; }

/* ── Game area ───────────────────────────────────────────── */
#game-area {
  position: relative;
  border: 4px solid #7ab8d8;
  border-radius: 6px;
  box-shadow: 6px 6px 0 #5a9cbe;
  background: #0d1a2e;
  overflow: hidden;
  flex-shrink: 0;
}

#board { display: block; image-rendering: pixelated; }

/* ── Overlay ─────────────────────────────────────────────── */
#overlay {
  position: absolute; inset: 0;
  background: rgba(8, 20, 45, 0.84);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 24px;
}
#overlay.hidden { display: none; }

#overlay-text {
  color: #d6eeff; font-size: 14px;
  text-align: center; line-height: 2;
  text-shadow: 2px 2px 0 #4a90b8;
}

#overlay-btn {
  font-family: 'Press Start 2P', monospace;
  font-size: 12px; padding: 12px 24px;
  background: #a8d8f0; color: #0a2a45;
  border: 3px solid #5a9cbe; border-radius: 4px;
  cursor: pointer; box-shadow: 4px 4px 0 #3a7a9e;
  transition: transform 0.1s, box-shadow 0.1s;
}
#overlay-btn:hover  { transform: translate(2px,2px); box-shadow: 2px 2px 0 #3a7a9e; }
#overlay-btn:active { transform: translate(4px,4px); box-shadow: none; }

/* ── Desktop next canvas ─────────────────────────────────── */
#next-canvas {
  display: block; background: #0d1a2e;
  border-radius: 3px; image-rendering: pixelated;
}

/* ── Keyboard controls ───────────────────────────────────── */
.controls-box { align-items: flex-start; gap: 6px; }
.control-row  { font-size: 7px; color: #5a7a90; display: flex; align-items: center; gap: 6px; }
kbd {
  background: #d8eeff; border: 2px solid #7ab8d8; border-radius: 3px;
  padding: 2px 5px; font-family: 'Press Start 2P', monospace;
  font-size: 6px; color: #1a4a6a; box-shadow: 2px 2px 0 #5a9cbe; white-space: nowrap;
}

/* ── Touch buttons ───────────────────────────────────────── */
.touch-row { display: flex; gap: 10px; }

.touch-btn {
  font-family: 'Press Start 2P', monospace;
  font-size: 24px; width: 76px; height: 76px;
  background: #a8d8f0; color: #0a2a45;
  border: 3px solid #5a9cbe; border-radius: 10px;
  cursor: pointer; box-shadow: 0 5px 0 #3a7a9e;
  display: flex; align-items: center; justify-content: center;
  user-select: none; -webkit-tap-highlight-color: transparent;
  transition: transform 0.08s, box-shadow 0.08s;
}
.touch-btn:active { transform: translateY(4px); box-shadow: 0 1px 0 #3a7a9e; }
.touch-btn.wide   { width: 242px; height: 60px; font-size: 20px; }

/* ═══════════════════════════════════════
   MOBILE LAYOUT  (pointer:coarse OR narrow)
═══════════════════════════════════════ */
@media (pointer: coarse), (max-width: 540px) {

  body { justify-content: flex-start; padding: 8px 0 0; }

  /* Show mobile top bar */
  #mobile-top {
    display: flex !important;
    flex-direction: row;
    align-items: stretch;
    gap: 6px;
    width: 308px;
    margin-bottom: 6px;
  }

  /* Stats: three boxes side by side */
  #mini-stats {
    display: flex;
    flex-direction: row;
    gap: 5px;
    flex: 1;
  }

  .mini-stat {
    background: #f0f8ff;
    border: 2px solid #7ab8d8;
    border-radius: 5px;
    box-shadow: 2px 2px 0 #5a9cbe;
    padding: 4px 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    flex: 1;
  }

  .mini-label { font-size: 5px; color: #5a8caa; letter-spacing: 1px; }
  .mini-value { font-size: 12px; color: #0a3a5a; }

  /* Next piece compact box */
  #mini-next {
    background: #f0f8ff;
    border: 2px solid #7ab8d8;
    border-radius: 5px;
    box-shadow: 2px 2px 0 #5a9cbe;
    padding: 4px 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
  }

  #next-canvas-mobile {
    display: block;
    width: 56px; height: 56px;
    background: #0d1a2e;
    border-radius: 2px;
    image-rendering: pixelated;
  }

  /* Hide desktop sidebars */
  #side-left  { display: none !important; }
  #side-right { display: none !important; }

  /* Stack game centered */
  #app {
    flex-direction: column !important;
    align-items: center !important;
    gap: 0 !important;
  }

  /* Touch controls hidden — use swipe gestures on canvas */
  #touch-controls { display: none !important; }
}