.bc-app{--bc-ink:#152a25;--bc-muted:#687771;--bc-green:#176b54;--bc-green-light:#e7f4ed;--bc-line:#e0e8e3;max-width:980px;margin:24px auto;padding:clamp(14px,3vw,28px);border:1px solid var(--bc-line);border-radius:22px;background:#fff;color:var(--bc-ink);font-family:inherit;box-sizing:border-box;box-shadow:0 12px 40px rgba(21,42,37,.06)}
.bc-app *{box-sizing:border-box}.bc-header{display:flex;gap:14px;align-items:center;margin-bottom:22px}.bc-brand-mark{width:54px;height:54px;flex:0 0 54px;display:grid;place-items:center;border-radius:16px;background:var(--bc-green);color:#fff;font-size:18px;font-weight:900;letter-spacing:-1px}.bc-eyebrow{margin:0 0 4px;font-size:10px;font-weight:800;letter-spacing:1.6px;color:var(--bc-green)}.bc-heading h2{font-size:clamp(24px,4vw,34px);line-height:1.1;margin:0 0 7px;color:var(--bc-ink)}.bc-subtitle{margin:0;color:var(--bc-muted);font-size:14px}
.bc-tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--bc-line);padding-bottom:16px;margin-bottom:18px}.bc-tab{border:1px solid var(--bc-line);border-radius:999px;background:#fff;color:var(--bc-ink);font:inherit;font-size:13px;font-weight:700;padding:10px 14px;cursor:pointer;min-height:42px}.bc-tab.is-active{background:var(--bc-green);border-color:var(--bc-green);color:#fff}.bc-game-shell{border:1px solid var(--bc-line);border-radius:18px;padding:clamp(12px,3vw,22px);background:#fbfdfb}.bc-game-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.bc-game-title{margin:0 0 5px;font-size:22px;color:var(--bc-ink)}.bc-game-instructions{margin:0;color:var(--bc-muted);font-size:13px}.bc-score-box{flex:0 0 auto;min-width:88px;text-align:center;padding:8px 12px;border-radius:12px;background:var(--bc-green-light)}.bc-score-box span{display:block;font-size:9px;font-weight:800;letter-spacing:.9px;color:var(--bc-green)}.bc-score-box strong{display:block;font-size:23px;color:var(--bc-ink)}
.bc-panel[hidden]{display:none!important}.bc-2048-board{width:min(100%,420px);aspect-ratio:1;margin:0 auto;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:8px;background:#dce5df;border-radius:14px;touch-action:pan-y}.bc-tile{display:grid;place-items:center;aspect-ratio:1;border-radius:8px;background:#edf1ed;font-weight:900;font-size:clamp(18px,5vw,30px);color:#3a4a43}.bc-tile.tile-empty{background:#e9eee9}.bc-tile.tile-2{background:#fff;color:#42534a}.bc-tile.tile-4{background:#e8f4df}.bc-tile.tile-8{background:#c9e8c0}.bc-tile.tile-16{background:#9fd5aa;color:#153e2f}.bc-tile.tile-32{background:#65b98a;color:#fff}.bc-tile.tile-64{background:#30966c;color:#fff}.bc-tile.tile-128,.bc-tile.tile-256,.bc-tile.tile-512{background:#f1cf77;color:#473b1c;font-size:clamp(15px,4vw,25px)}.bc-tile.tile-1024,.bc-tile.tile-2048{background:#e6a64e;color:#fff;font-size:clamp(13px,3.6vw,22px)}
.bc-game-actions{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;margin:16px 0 6px}.bc-button{border:0;border-radius:10px;padding:11px 16px;min-height:42px;font:inherit;font-size:13px;font-weight:800;cursor:pointer}.bc-button:focus-visible,.bc-tab:focus-visible,.bc-memory-card:focus-visible{outline:3px solid #efb63f;outline-offset:3px}.bc-button-primary{background:var(--bc-green);color:#fff}.bc-button-secondary{background:#e8eee9;color:var(--bc-ink)}.bc-best{font-size:12px;color:var(--bc-muted)}.bc-best strong{color:var(--bc-ink)}.bc-status{min-height:20px;text-align:center;color:var(--bc-muted);font-size:13px;margin:14px 0 0}
.bc-memory-meta,.bc-word-meta{display:flex;justify-content:center;gap:24px;color:var(--bc-muted);font-size:13px;margin-bottom:12px}.bc-memory-meta strong,.bc-word-meta strong{color:var(--bc-ink)}.bc-memory-board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;max-width:440px;margin:0 auto}.bc-memory-card{aspect-ratio:1;border:1px solid #d7e5dc;border-radius:12px;background:#e7f4ed;color:var(--bc-green);font-size:clamp(22px,6vw,36px);font-weight:800;cursor:pointer;min-width:0}.bc-memory-card.is-open{background:#fff;border-color:#b6d8c5}.bc-memory-card.is-matched{background:#d4efdd;border-color:#75bd8e}.bc-memory-card:disabled{cursor:default}
.bc-word-card{max-width:520px;margin:0 auto;padding:clamp(18px,4vw,30px);text-align:center;border-radius:16px;background:#fff;border:1px solid var(--bc-line)}.bc-word-label{display:block;font-size:10px;font-weight:900;letter-spacing:1.4px;color:var(--bc-green)}.bc-scrambled{display:block;font-size:clamp(28px,7vw,42px);letter-spacing:5px;margin:12px 0;color:var(--bc-ink)}.bc-word-hint{color:var(--bc-muted);font-size:14px;min-height:22px}.bc-word-form{display:flex;gap:8px;max-width:400px;margin:18px auto}.bc-word-form input{flex:1;min-width:0;border:1px solid #ccd8d0;border-radius:10px;padding:12px;font:inherit;font-size:16px}.bc-word-meta{margin-top:16px}
.bc-snake-wrap{position:relative;width:min(100%,360px);margin:0 auto;border-radius:12px;overflow:hidden;border:1px solid var(--bc-line);background:#fff}.bc-snake-wrap canvas{display:block;width:100%;height:auto;touch-action:none}.bc-snake-overlay{position:absolute;inset:0;background:rgba(255,255,255,.9);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:20px}.bc-snake-overlay[hidden]{display:none}.bc-snake-overlay strong{font-size:22px}.bc-snake-overlay span{font-size:13px;color:var(--bc-muted)}.bc-dpad{display:grid;justify-items:center;gap:5px;margin:12px auto}.bc-dpad>div{display:flex;gap:5px}.bc-dpad button{width:48px;height:44px;border:1px solid var(--bc-line);border-radius:10px;background:#fff;color:var(--bc-green);font-size:18px;font-weight:900;cursor:pointer}
.bc-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--bc-line)}.bc-footer strong,.bc-footer span{display:block}.bc-footer strong{font-size:13px}.bc-footer span{font-size:11px;color:var(--bc-muted);margin-top:3px}.bc-share{background:#f2f6f3;color:var(--bc-green);border:1px solid var(--bc-line)}.bc-share-message{text-align:center;font-size:12px;color:var(--bc-green);overflow-wrap:anywhere}.bc-note{text-align:center;color:#7a8780;font-size:10px;margin:10px 0 0}.screen-reader-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:520px){.bc-app{border-radius:14px;margin:12px auto;padding:12px}.bc-header{align-items:flex-start}.bc-brand-mark{width:44px;height:44px;flex-basis:44px;border-radius:12px}.bc-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.bc-tab{width:100%;padding:9px 6px}.bc-game-top{align-items:flex-start}.bc-game-title{font-size:19px}.bc-game-instructions{max-width:220px}.bc-score-box{min-width:72px;padding:7px 9px}.bc-score-box strong{font-size:20px}.bc-2048-board{gap:5px;padding:5px}.bc-tile{border-radius:6px}.bc-footer{align-items:flex-start}.bc-word-form{flex-direction:column}.bc-word-form .bc-button{width:100%}}
@media(prefers-reduced-motion:reduce){.bc-app *{scroll-behavior:auto!important;animation:none!important;transition:none!important}}