:root{--bg-color: #1a1a2e;--board-bg: #e0c097;--board-line: #5c4033;--text-color: #eaeaea;--accent-color: #4ecca3;--panel-bg: #16213e;--black-stone: #0f0f0f;--white-stone: #f0f0f0;--shadow-color: rgba(0, 0, 0, .3);--font-main: "Outfit", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--bg-color);color:var(--text-color);display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden}#app{display:flex;flex-direction:column;align-items:center;gap:2rem;padding:2rem;width:100%;max-width:1200px}header{text-align:center}h1{font-size:3rem;font-weight:600;letter-spacing:2px;background:linear-gradient(to right,#4ecca3,#45a29e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}.subtitle{font-size:1.2rem;opacity:.8;font-weight:300}main{display:flex;gap:3rem;align-items:flex-start;flex-wrap:wrap;justify-content:center}#game-container{position:relative;padding:10px;background:#2a2a3e;border-radius:8px;box-shadow:0 20px 50px var(--shadow-color)}.board{width:600px;height:600px;background-color:var(--board-bg);display:grid;grid-template-columns:repeat(15,1fr);grid-template-rows:repeat(15,1fr);position:relative;cursor:crosshair;box-shadow:inset 0 0 20px #0003}.board:before{content:"";position:absolute;top:20px;left:20px;right:19px;bottom:19px;background-image:linear-gradient(var(--board-line) 1px,transparent 1px),linear-gradient(90deg,var(--board-line) 1px,transparent 1px);background-size:40px 40px;pointer-events:none}.cell{width:100%;height:100%;position:relative;z-index:1;display:flex;justify-content:center;align-items:center}.cell:after{content:"";width:32px;height:32px;border-radius:50%;transform:scale(0);transition:transform .2s cubic-bezier(.175,.885,.32,1.275);box-shadow:2px 2px 4px #0006}.cell.black:after{background:radial-gradient(circle at 30% 30%,#444,var(--black-stone));transform:scale(1)}.cell.white:after{background:radial-gradient(circle at 30% 30%,#fff,#ddd);transform:scale(1)}.cell.last-move:before{content:"";position:absolute;width:8px;height:8px;background-color:#ff4757;border-radius:50%;z-index:2;box-shadow:0 0 5px #ff4757}.board.player-black .cell:not(.black):not(.white):hover:after{transform:scale(1);background:radial-gradient(circle at 30% 30%,#4449,#0f0f0f99);box-shadow:none;opacity:.7}.board.player-white .cell:not(.black):not(.white):hover:after{transform:scale(1);background:radial-gradient(circle at 30% 30%,#fff9,#ddd9);box-shadow:none;opacity:.7}#sidebar{display:flex;flex-direction:column;gap:1.5rem;width:250px}.panel{background-color:var(--panel-bg);padding:1.5rem;border-radius:12px;box-shadow:0 4px 15px #0003;border:1px solid rgba(255,255,255,.05)}.panel h2{font-size:1.2rem;margin-bottom:1rem;color:var(--accent-color);text-transform:uppercase;letter-spacing:1px}.status-indicator{display:flex;align-items:center;gap:1rem;padding:.8rem;background:#ffffff0d;border-radius:8px;transition:all .3s ease}.turn-icon{width:20px;height:20px;border-radius:50%;border:2px solid rgba(255,255,255,.2)}.player-black .turn-icon{background-color:var(--black-stone);box-shadow:0 0 10px #00000080}.player-white .turn-icon{background-color:var(--white-stone);box-shadow:0 0 10px #ffffff80}.btn{width:100%;padding:1rem;border:none;border-radius:8px;font-family:var(--font-main);font-weight:600;font-size:1rem;cursor:pointer;transition:all .2s ease;text-transform:uppercase;letter-spacing:1px}.btn.primary{background:linear-gradient(135deg,var(--accent-color),#2a9d8f);color:#fff;box-shadow:0 4px 15px #4ecca34d}.btn.primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #4ecca366}.btn.primary:active{transform:translateY(0)}@keyframes win-pulse{0%{transform:scale(1);box-shadow:0 0 #4ecca300}50%{transform:scale(1.1);box-shadow:0 0 20px #4ecca380}to{transform:scale(1);box-shadow:0 0 #4ecca300}}.cell.win:after{animation:win-pulse 1.5s infinite;border:2px solid var(--accent-color)}.timers{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem;border-top:1px solid rgba(255,255,255,.1);padding-top:1.5rem}.timer-box{background:#0003;padding:.8rem;border-radius:8px;display:flex;justify-content:space-between;align-items:center;border-left:4px solid transparent}.timer-box.player-black{border-left-color:var(--black-stone)}.timer-box.player-white{border-left-color:var(--white-stone)}.timer-label{font-size:.9rem;opacity:.8;text-transform:uppercase}.timer-value{font-family:monospace;font-size:1.5rem;font-weight:600;letter-spacing:1px}.setup-group{margin:2rem 0;display:flex;flex-direction:column;gap:.5rem;text-align:left}.setup-group label{font-size:1rem;color:var(--accent-color)}.setup-group input{width:100%;padding:.8rem;background:#0003;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#fff;font-size:1.2rem;font-family:var(--font-main)}.setup-group input:focus{outline:none;border-color:var(--accent-color)}.radio-group{display:flex;gap:1.5rem;margin-top:.5rem}.radio-label{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-size:1rem;color:#ccc}.radio-label input{width:auto;margin:0}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:100;opacity:1;transition:opacity .3s ease}.modal.hidden{opacity:0;pointer-events:none}.modal-content{background:#16213ee6;padding:3rem;border-radius:20px;text-align:center;border:1px solid rgba(255,255,255,.1);box-shadow:0 20px 50px #00000080;transform:scale(1);transition:transform .3s cubic-bezier(.175,.885,.32,1.275);max-width:400px;width:90%}.modal.hidden .modal-content{transform:scale(.8)}#winner-title{font-size:3rem;margin-bottom:1rem;background:linear-gradient(to right,#4ecca3,#45a29e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-transform:uppercase;letter-spacing:3px}#winner-message{font-size:1.2rem;margin-bottom:2rem;color:#ccc}.pulse-btn{animation:btn-pulse 2s infinite}@keyframes btn-pulse{0%{box-shadow:0 0 #4ecca3b3}70%{box-shadow:0 0 0 10px #4ecca300}to{box-shadow:0 0 #4ecca300}}#confetti-container{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;overflow:hidden}.confetti{position:absolute;width:10px;height:10px;background-color:red;animation:fall linear forwards}@keyframes fall{to{transform:translateY(100vh) rotate(720deg)}}