/* ================================================================
   TETRIS.CSS — Windows 95 Style
   ================================================================ */
@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

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

:root {
  --face: #c0c0c0;
  --lt:   #ffffff;
  --dk:   #808080;
  --ddk:  #404040;
  --navy: #000080;
}

html, body {
  background: var(--face);
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  font-size: 11px;
  overflow: hidden;
  height: 100%;
  width: 100%;
  user-select: none;
}

/* ── Outer wrapper ─────────────────────────── */
.tetris-shell {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--face);
}

/* ── Menu bar ──────────────────────────────── */
.tetris-menu {
  display: flex;
  background: var(--face);
  border-bottom: 1px solid var(--dk);
  padding: 1px 4px;
  flex-shrink: 0;
}
.tetris-menu span {
  padding: 2px 8px; cursor: pointer; font-size: 11px; border: 1px solid transparent;
}
.tetris-menu span:hover {
  background: var(--navy); color: white;
  border-color: var(--lt) var(--ddk) var(--ddk) var(--lt);
}

/* ── Main play area ────────────────────────── */
.tetris-body {
  display: flex;
  gap: 8px;
  padding: 8px;
  flex: 1;
  align-items: flex-start;
}

/* ── Canvas: game board ────────────────────── */
.board-panel {
  border: 2px solid;
  border-color: var(--dk) var(--lt) var(--lt) var(--dk);
  box-shadow: inset 1px 1px 0 var(--dk);
  background: #000;
  flex-shrink: 0;
}

#tetris {
  display: block;
  image-rendering: pixelated;
  /* 12 cols × 20px = 240, 20 rows × 20px = 400 */
  width: 240px;
  height: 400px;
}

/* ── Right side panel ──────────────────────── */
.info-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 120px;
}

/* ── Score/level/lines boxes ───────────────── */
.score-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.score-box {
  background: var(--face);
  border: 2px solid;
  border-color: var(--dk) var(--lt) var(--lt) var(--dk);
  padding: 4px 8px;
  text-align: center;
}
.score-box .label {
  font-size: 9px;
  font-family: 'Press Start 2P', monospace;
  color: var(--navy);
  margin-bottom: 4px;
  display: block;
}
.score-box .value {
  font-size: 14px;
  font-family: 'Press Start 2P', monospace;
  color: #000;
}

/* ── Next pieces ───────────────────────────── */
.next-section {
  border: 2px solid;
  border-color: var(--dk) var(--lt) var(--lt) var(--dk);
  padding: 4px;
  background: var(--face);
}
.next-title {
  font-family: 'Press Start 2P', monospace;
  font-size: 8px;
  color: var(--navy);
  text-align: center;
  margin-bottom: 4px;
}
.next-canvases {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}
.next-piece {
  display: block;
  background: #000;
  border: 1px solid var(--dk);
  image-rendering: pixelated;
}

/* ── Controls reference ────────────────────── */
.controls-box {
  border: 2px solid;
  border-color: var(--dk) var(--lt) var(--lt) var(--dk);
  padding: 6px 8px;
  font-size: 9px;
  background: var(--face);
}
.controls-box h4 {
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  color: var(--navy);
  margin-bottom: 4px;
}
.controls-box ul { list-style: none; padding: 0; }
.controls-box li { margin-bottom: 3px; color: #333; }
.controls-box li strong { color: #000; font-weight: 700; }

/* ── Pause / Game-over overlay ─────────────── */
.tetris-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  z-index: 10;
}
.tetris-overlay.visible { display: flex; }
.overlay-msg {
  font-family: 'Press Start 2P', monospace;
  font-size: 12px;
  color: #fff;
  text-align: center;
  text-shadow: 2px 2px 0 #000;
}
.overlay-btn {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  padding: 8px 20px;
  background: var(--face);
  border: 2px solid;
  border-color: var(--lt) var(--ddk) var(--ddk) var(--lt);
  cursor: pointer; color: #000;
}
.overlay-btn:active {
  border-color: var(--ddk) var(--lt) var(--lt) var(--ddk);
  transform: translate(1px,1px);
}

/* ── Board wrapper (for overlay positioning) ─ */
.board-wrapper {
  position: relative;
  flex-shrink: 0;
}

/* ── Status bar ────────────────────────────── */
.tetris-status {
  height: 18px;
  background: var(--face);
  border-top: 1px solid var(--dk);
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-size: 10px;
  flex-shrink: 0;
  gap: 8px;
}
.status-panel {
  padding: 0 8px;
  border: 1px solid;
  border-color: var(--dk) var(--lt) var(--lt) var(--dk);
  height: 12px;
  line-height: 12px;
  flex: 1;
}