.chess-play {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px;
  padding-top: 100px;
  min-height: 500px;
}

.chess-sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chess-sidebar .control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chess-sidebar .control-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted, #8a8580);
}

.chess-sidebar select {
  background: var(--surface-2, #141830);
  border: 1px solid var(--border, #2a2d4a);
  color: var(--text, #f0ede8);
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 13px;
}

.chess-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.chess-controls .btn {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--border, #2a2d4a);
  background: var(--surface-2, #141830);
  color: var(--text, #f0ede8);
  transition: background 0.15s;
}

.chess-controls .btn:hover {
  background: var(--surface-3, #1e2148);
}

.chess-controls .btn-primary {
  background: var(--accent, #40c060);
  border-color: var(--accent, #40c060);
  color: #0a0d2a;
  font-weight: 600;
}

.chess-controls .btn-primary:hover {
  background: var(--accent-hover, #36a852);
}

.chess-status {
  font-size: 14px;
  padding: 8px 0;
  color: var(--text, #f0ede8);
}

.chess-status--over {
  color: var(--accent, #40c060);
  font-weight: 600;
}

.chess-captured {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 0;
  min-height: 24px;
}

.captured-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
}

.cap-piece {
  font-size: 16px;
  line-height: 1;
  opacity: 0.85;
}

.cap-white { color: #f0ede8; }
.cap-black { color: #4a4540; }

.chess-moves {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted, #8a8580);
  max-height: 200px;
  overflow-y: auto;
  line-height: 1.8;
}

.move-entry {
  margin-right: 6px;
}

.chess-board-area {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chess-board-svg {
  width: 100%;
  max-width: 560px;
  cursor: pointer;
}

.chess-board-svg svg {
  width: 100%;
  height: auto;
  display: block;
}

.chess-board-svg image {
  will-change: transform;
}

.chess-board-svg .board-cell {
  cursor: pointer;
  transition: opacity 0.1s;
}

.chess-board-svg .board-cell:hover {
  opacity: 0.7;
}

.chess-promotion {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  gap: 8px;
  background: var(--surface, #0e1128);
  border: 2px solid var(--accent, #40c060);
  border-radius: 8px;
  padding: 12px;
  z-index: 10;
}

.promo-btn {
  width: 48px;
  height: 48px;
  font-size: 32px;
  background: var(--surface-2, #141830);
  border: 1px solid var(--border, #2a2d4a);
  border-radius: 4px;
  cursor: pointer;
  color: var(--text, #f0ede8);
  display: flex;
  align-items: center;
  justify-content: center;
}

.promo-btn:hover {
  background: var(--accent, #40c060);
  color: #0a0d2a;
}

/* Embed mode — board only, no sidebar */
.chess-play--embed {
  display: block;
  padding: 0;
  max-width: none;
  width: 100%;
}

.chess-play--embed .chess-board-area {
  width: 100%;
  height: 100vh;
}

.chess-play--embed .chess-board-svg {
  max-width: none;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chess-play--embed .chess-board-svg svg {
  width: 100% !important;
  height: 100% !important;
  display: block;
  object-fit: contain;
}

.chess-embed-mode {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: transparent;
}

body.chess-embed-mode,
body.chess-embed-mode #chess-play-root {
  width: 100%;
  height: 100vh;
  background: transparent;
}

.chess-embed-mode .site-header,
.chess-embed-mode .site-footer,
.chess-embed-mode .boards-hero,
.chess-embed-mode .boards-app,
.chess-embed-mode footer {
  display: none !important;
}

/* Fullscreen mode */
.chess-play--fullscreen {
  position: fixed;
  inset: 0;
  max-width: none;
  z-index: 9999;
  background: var(--surface, #0e1128);
  padding: 16px;
  grid-template-columns: 220px 1fr;
}

.chess-play--fullscreen .chess-board-svg {
  max-width: none;
}

.chess-fullscreen-mode .site-header,
.chess-fullscreen-mode .site-nav,
.chess-fullscreen-mode .page-header {
  display: none;
}

@media (max-width: 768px) {
  .chess-play {
    grid-template-columns: 1fr;
  }
  .chess-board {
    max-width: 100%;
  }
}