:root{--bg-color: #0f172a;--text-color: #e2e8f0;--primary-color: #3b82f6;--secondary-color: #ec4899;--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--font-main: "Inter", system-ui, -apple-system, sans-serif}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-main);display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden}#root{width:100%;max-width:1280px;margin:0 auto;padding:2rem;text-align:center}button{cursor:pointer;font-family:inherit}.game-container{display:flex;flex-direction:column;align-items:center;gap:1rem;padding:1rem;background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:20px;box-shadow:0 8px 32px #0000005e;width:95vw;max-width:1800px}.title{font-size:2.5rem;font-weight:700;margin:0;background:linear-gradient(to right,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 20px rgba(59,130,246,.5)}.status{font-size:1.2rem;margin-bottom:.5rem;color:var(--text-color);opacity:.8}.boards-container{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;padding:1rem;width:100%;max-width:1600px}.board-wrapper{display:flex;flex-direction:column;align-items:center;background:#ffffff05;padding:1rem;border-radius:15px;border:1px solid rgba(255,255,255,.05)}.layer-title{margin:0 0 10px;color:var(--primary-color);font-size:1.2rem;text-transform:uppercase;letter-spacing:2px}.board{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.square{width:60px;height:60px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;font-size:2rem;font-weight:700;display:flex;justify-content:center;align-items:center;transition:all .3s ease;color:var(--text-color);position:relative}.square-id{position:absolute;top:2px;left:4px;font-size:.6rem;opacity:.5;font-weight:400}.square.winning-x{background:#3b82f64d;box-shadow:0 0 20px #3b82f666;animation:pulse-blue 1.5s infinite;border-color:var(--primary-color)}.square.winning-o{background:#ec48994d;box-shadow:0 0 20px #ec489966;animation:pulse-pink 1.5s infinite;border-color:var(--secondary-color)}.square.last-move{border:2px solid #fbbf24;box-shadow:0 0 15px #fbbf2480}@keyframes pulse-blue{0%{box-shadow:0 0 #3b82f666}70%{box-shadow:0 0 0 10px #3b82f600}to{box-shadow:0 0 #3b82f600}}@keyframes pulse-pink{0%{box-shadow:0 0 #ec489966}70%{box-shadow:0 0 0 10px #ec489900}to{box-shadow:0 0 #ec489900}}.square:hover:not(:disabled){background:#ffffff26;transform:scale(1.05);box-shadow:0 0 15px #ffffff1a}.square.x{color:var(--primary-color);text-shadow:0 0 10px var(--primary-color)}.square.o{color:var(--secondary-color);text-shadow:0 0 10px var(--secondary-color)}.controls{margin-top:1rem}.btn{padding:.8rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;color:#fff;background:linear-gradient(45deg,var(--primary-color),var(--secondary-color));background-size:200% 200%;animation:gradient 5s ease infinite;transition:transform .2s}.btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #0000004d}@keyframes gradient{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@media(max-width:768px){.boards-container{grid-template-columns:1fr;gap:1rem}.square{width:50px;height:50px;font-size:1.5rem}}