.ccp-app {
  --ccp-bg: #f4f7fb;
  --ccp-card: #ffffff;
  --ccp-text: #132033;
  --ccp-muted: #65758b;
  --ccp-primary: #3f6df6;
  --ccp-light: #e7d6b6;
  --ccp-dark: #7c5a38;
  --ccp-accent: #f59f00;
  --ccp-shadow: 0 12px 30px rgba(14, 31, 53, .12);
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  min-height: 760px;
  border-radius: 28px;
  overflow: hidden;
  background: radial-gradient(circle at top left, rgba(63,109,246,.18), transparent 32%), var(--ccp-bg);
  color: var(--ccp-text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.ccp-app.ccp-dark-mode {
  --ccp-bg: #0d1422;
  --ccp-card: #151f31;
  --ccp-text: #eff5ff;
  --ccp-muted: #a5b4c8;
  --ccp-light: #9b7f56;
  --ccp-dark: #3c2c1d;
  --ccp-shadow: 0 12px 30px rgba(0, 0, 0, .35);
}
.ccp-app * { box-sizing: border-box; }
.ccp-app h2, .ccp-app h3, .ccp-app p { margin: 0; color: var(--ccp-text); }
.ccp-sidebar { padding: 22px; background: rgba(255,255,255,.52); border-right: 1px solid rgba(127,127,127,.18); }
.ccp-dark-mode .ccp-sidebar { background: rgba(10,16,28,.55); }
.ccp-brand { display: flex; gap: 14px; align-items: center; margin-bottom: 18px; }
.ccp-logo { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 18px; background: var(--ccp-card); box-shadow: var(--ccp-shadow); font-size: 30px; }
.ccp-brand h2 { font-size: 22px; line-height: 1.15; }
.ccp-brand p, .ccp-muted { color: var(--ccp-muted); font-size: 13px; }
.ccp-panel { background: var(--ccp-card); border-radius: 22px; box-shadow: var(--ccp-shadow); padding: 16px; margin-bottom: 16px; }
.ccp-panel h3 { font-size: 16px; margin-bottom: 12px; }
.ccp-app label { display: block; margin: 12px 0 6px; font-weight: 700; font-size: 13px; color: var(--ccp-muted); }
.ccp-app select, .ccp-app button {
  width: 100%;
  border: 0;
  border-radius: 14px;
  padding: 12px 14px;
  background: #eef3fb;
  color: var(--ccp-text);
  font-weight: 700;
  cursor: pointer;
  line-height: 1.1;
}
.ccp-dark-mode select, .ccp-dark-mode button { background: #24324a; color: var(--ccp-text); }
.ccp-primary, .ccp-segmented button.active { background: var(--ccp-primary) !important; color: #fff !important; }
.ccp-row, .ccp-grid2, .ccp-segmented { display: grid; gap: 10px; }
.ccp-row, .ccp-grid2 { grid-template-columns: 1fr 1fr; margin-top: 12px; }
.ccp-segmented { grid-template-columns: 1fr 1fr; }
.ccp-wide { margin-top: 10px; }
.ccp-main { padding: 26px; }
.ccp-topbar { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 20px; }
.ccp-topbar h2 { font-size: 32px; }
.ccp-topbar p { color: var(--ccp-muted); margin-top: 4px; }
.ccp-scorecards { display: flex; gap: 12px; }
.ccp-scorecards div { background: var(--ccp-card); border-radius: 18px; padding: 12px 18px; box-shadow: var(--ccp-shadow); min-width: 90px; text-align: center; }
.ccp-scorecards strong { display: block; font-size: 20px; color: var(--ccp-text); }
.ccp-scorecards span { color: var(--ccp-muted); font-size: 12px; }
.ccp-game-wrap { display: grid; grid-template-columns: minmax(320px, 680px) minmax(250px, 1fr); gap: 20px; align-items: start; }
.ccp-board {
  width: min(86vw, 680px);
  max-width: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--ccp-shadow);
  border: 8px solid var(--ccp-card);
}
.ccp-square { position: relative; display: grid; place-items: center; font-size: clamp(24px, 5vw, 58px); user-select: none; min-width: 0; }
.ccp-light { background: var(--ccp-light); }
.ccp-dark-square { background: var(--ccp-dark); }
.ccp-square.ccp-selected { outline: 5px solid var(--ccp-accent); outline-offset: -5px; }
.ccp-square.ccp-legal::after { content: ""; width: 26%; height: 26%; border-radius: 50%; background: rgba(63,109,246,.75); position: absolute; }
.ccp-square.ccp-capture::after { background: rgba(224,49,49,.8); }
.ccp-piece { filter: drop-shadow(0 4px 4px rgba(0,0,0,.25)); z-index: 2; }
.ccp-red { color: #c92a2a; }
.ccp-black { color: #171717; }
.ccp-dark-mode .ccp-black { color: #f1f3f5; }
#ccpMoveLog { max-height: 300px; overflow: auto; padding-left: 22px; color: var(--ccp-muted); }
#ccpTutorialText { color: var(--ccp-muted); line-height: 1.45; }
.ccp-modal { position: fixed; inset: 0; display: grid; place-items: center; background: rgba(0,0,0,.55); padding: 20px; z-index: 999999; }
.ccp-hidden { display: none !important; }
.ccp-modal-card { max-width: 620px; width: 100%; background: var(--ccp-card); color: var(--ccp-text); border-radius: 24px; padding: 24px; box-shadow: var(--ccp-shadow); position: relative; }
.ccp-close { position: absolute; top: 12px; right: 12px; width: 42px !important; padding: 8px !important; font-size: 22px; }
.ccp-badge { display: inline-block; margin: 6px 6px 0 0; padding: 8px 10px; border-radius: 999px; background: #eef3fb; font-weight: 800; }
.ccp-dark-mode .ccp-badge { background: #24324a; }
@media (max-width: 980px) {
  .ccp-app { grid-template-columns: 1fr; }
  .ccp-sidebar { border-right: 0; }
  .ccp-game-wrap { grid-template-columns: 1fr; }
  .ccp-topbar { flex-direction: column; align-items: flex-start; }
  .ccp-scorecards { width: 100%; overflow: auto; }
}