*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d0221;--surface:linear-gradient(135deg,#2d1b4e,#1a0a3e);--accent:#ff6b9d;--accent2:#ffd700;--text:#f0e6ff;--cell:clamp(44px,16vw,72px)}html,body{height:100%;overflow:hidden;background:var(--bg);font-family:Segoe UI,system-ui,sans-serif;color:var(--text);-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none;touch-action:manipulation}#app{display:flex;flex-direction:column;height:100%;max-width:820px;margin:0 auto}#header{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:linear-gradient(180deg,#2d1b4ef2,#1a0a3ef2);border-bottom:2px solid var(--accent)}.title{font-size:13px;font-weight:900;letter-spacing:2px;color:var(--accent2);text-shadow:0 0 12px rgba(255,215,0,.4);text-transform:uppercase}.score{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700}.score .label{opacity:.8}.score .val{font-size:22px;font-weight:900;min-width:36px;text-align:center;transition:transform .15s}#player-score .val{color:var(--accent)}#ai-score .val{color:var(--accent2)}#game-area{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;overflow:hidden;padding:6px}#game-canvas{display:block;max-width:100%;border-radius:12px;box-shadow:0 0 30px #ff6b9d26}#controls{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:10px 12px;width:100%;max-width:360px}.ctrl-btn{background:linear-gradient(180deg,#ff6b9d4d,#ff6b9d1a);border:2px solid rgba(255,107,157,.4);color:var(--text);font-size:26px;border-radius:14px;padding:12px 0;cursor:pointer;transition:all .1s;-webkit-tap-highlight-color:transparent}.ctrl-btn:active{background:var(--accent);border-color:var(--accent2);transform:scale(.92);box-shadow:0 0 20px #ff6b9d80}#rules{padding:8px 14px 10px;font-size:11px;line-height:1.5;opacity:.7;text-align:center;background:#2d1b4e4d;border-top:1px solid rgba(255,255,255,.06)}#rules strong{color:var(--accent2)}#message-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#message-overlay.hidden{display:none}#message-box{background:linear-gradient(135deg,#2d1b4e,#1a0a3e);border:2px solid var(--accent);border-radius:20px;padding:32px 28px;text-align:center;max-width:340px;width:90%;box-shadow:0 0 40px #ff6b9d4d}#message-title{font-size:32px;margin-bottom:10px}#message-text{font-size:15px;opacity:.8;margin-bottom:24px}#message-btn{background:linear-gradient(135deg,var(--accent),#e0558a);color:#fff;border:none;padding:14px 40px;font-size:18px;font-weight:700;border-radius:14px;cursor:pointer;transition:all .15s;box-shadow:0 4px 15px #ff6b9d66}#message-btn:active{transform:scale(.95)}@media (min-width:600px){#controls{display:none}#rules{font-size:12px;padding:10px 20px}}