*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #06080f;--bg2: #0d1117;--surface: #131b2e;--surface2: #1a2540;--border: #243050;--text: #e8eaf6;--text2: #8892b0;--accent: #6366f1}body{font-family:Inter,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;background-image:radial-gradient(ellipse at 20% 50%,rgba(99,102,241,.08) 0%,transparent 60%),radial-gradient(ellipse at 80% 20%,rgba(236,72,153,.06) 0%,transparent 50%),radial-gradient(ellipse at 50% 90%,rgba(34,197,94,.04) 0%,transparent 50%)}@keyframes piece-land{0%{transform:scale(.1) translateY(-30px);opacity:.2;filter:brightness(2)}50%{transform:scale(1.35);opacity:1;filter:brightness(1.5)}70%{transform:scale(.88);filter:brightness(1.2)}85%{transform:scale(1.08)}to{transform:scale(1);filter:brightness(1)}}@keyframes win-pulse{0%,to{transform:scale(1);filter:brightness(1)}50%{transform:scale(1.18);filter:brightness(1.8) saturate(1.5)}}@keyframes win-glow-ring{0%{box-shadow:0 0 0 0 currentColor,0 0 20px currentColor}to{box-shadow:0 0 0 20px transparent,0 0 40px transparent}}@keyframes float-particle{0%{transform:translate(0) scale(1) rotate(0);opacity:1}to{transform:translate(var(--tx),var(--ty)) scale(0) rotate(var(--rot));opacity:0}}@keyframes title-glow{0%,to{text-shadow:0 0 20px rgba(99,102,241,.8),0 0 60px rgba(99,102,241,.4)}50%{text-shadow:0 0 40px rgba(99,102,241,1),0 0 100px rgba(99,102,241,.6),0 0 160px rgba(236,72,153,.3)}}@keyframes slide-up{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes slide-in-left{0%{transform:translate(-40px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes slide-in-right{0%{transform:translate(40px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes pulse-border{0%,to{border-color:#6366f166}50%{border-color:#6366f1e6;box-shadow:0 0 20px #6366f14d}}@keyframes thinking-dots{0%,20%{opacity:.2;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}80%,to{opacity:.2;transform:scale(.8)}}@keyframes victory-flash{0%,to{background:rgba(0,0,0,0)}10%,30%,50%{background:rgba(255,255,255,.04)}20%,40%{background:rgba(0,0,0,0)}}@keyframes elo-change{0%{transform:translateY(0);opacity:1}to{transform:translateY(-40px);opacity:0}}@keyframes col-preview-pulse{0%,to{opacity:.5;transform:scale(.7)}50%{opacity:1;transform:scale(.85)}}@keyframes stars-move{0%{transform:translateY(0)}to{transform:translateY(-50%)}}.app{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:16px;position:relative}.app:before{content:"";position:fixed;top:-100%;right:0;bottom:0;left:0;background-image:radial-gradient(1px 1px at 10% 15%,rgba(255,255,255,.6) 0%,transparent 0%),radial-gradient(1px 1px at 30% 40%,rgba(255,255,255,.4) 0%,transparent 0%),radial-gradient(1px 1px at 50% 10%,rgba(255,255,255,.5) 0%,transparent 0%),radial-gradient(1px 1px at 70% 60%,rgba(255,255,255,.3) 0%,transparent 0%),radial-gradient(1px 1px at 85% 25%,rgba(255,255,255,.6) 0%,transparent 0%),radial-gradient(1px 1px at 15% 75%,rgba(255,255,255,.4) 0%,transparent 0%),radial-gradient(1px 1px at 45% 85%,rgba(255,255,255,.3) 0%,transparent 0%),radial-gradient(1px 1px at 65% 45%,rgba(255,255,255,.5) 0%,transparent 0%),radial-gradient(1px 1px at 90% 80%,rgba(255,255,255,.4) 0%,transparent 0%),radial-gradient(1px 1px at 25% 55%,rgba(255,255,255,.3) 0%,transparent 0%);background-size:300px 300px;animation:stars-move 60s linear infinite;pointer-events:none;z-index:0}.home{display:flex;flex-direction:column;align-items:center;gap:40px;z-index:1;animation:slide-up .6s ease-out}.home-logo{display:flex;flex-direction:column;align-items:center;gap:8px}.home-title{font-family:Orbitron,sans-serif;font-size:clamp(2.5rem,8vw,5rem);font-weight:900;letter-spacing:.05em;background:linear-gradient(135deg,#818cf8 0%,#e879f9 50%,#fb923c 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:title-glow 3s ease-in-out infinite;text-transform:uppercase}.home-subtitle{font-size:.9rem;color:var(--text2);letter-spacing:.3em;text-transform:uppercase}.home-elo-badge{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:6px 16px;font-size:.85rem;color:var(--text2)}.home-elo-badge span{color:#fbbf24;font-weight:700}.home-modes{display:flex;flex-direction:column;gap:12px;width:100%;max-width:380px}.mode-btn{display:flex;align-items:center;gap:16px;padding:20px 24px;border-radius:16px;border:1px solid var(--border);background:var(--surface);cursor:pointer;transition:all .2s;text-align:left;color:var(--text);position:relative;overflow:hidden}.mode-btn:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,var(--mode-color, #6366f1) 0%,transparent 60%);opacity:0;transition:opacity .2s}.mode-btn:hover:before{opacity:.08}.mode-btn:hover{border-color:var(--mode-color, #6366f1);transform:translate(4px);box-shadow:0 4px 20px #0000004d}.mode-icon{font-size:2rem;z-index:1}.mode-text{z-index:1}.mode-text strong{display:block;font-size:1.05rem;font-weight:700;margin-bottom:2px}.mode-text span{font-size:.8rem;color:var(--text2)}.mode-arrow{margin-left:auto;color:var(--text2);font-size:1.2rem;z-index:1}.setup{display:flex;flex-direction:column;align-items:center;gap:24px;width:100%;max-width:600px;z-index:1;animation:slide-up .4s ease-out}.setup-title{font-family:Orbitron,sans-serif;font-size:1.4rem;font-weight:700;color:var(--text);text-align:center}.setup-card{width:100%;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:24px}.setup-card-title{font-size:.75rem;text-transform:uppercase;letter-spacing:.2em;color:var(--text2);margin-bottom:16px}.difficulty-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.diff-btn{padding:12px 8px;border-radius:10px;border:2px solid var(--border);background:var(--surface2);cursor:pointer;transition:all .2s;text-align:center;color:var(--text);font-size:.85rem;font-weight:600}.diff-btn:hover{border-color:var(--diff-color, #6366f1)}.diff-btn.active{border-color:var(--diff-color, #6366f1);background:rgba(99,102,241,.15);box-shadow:0 0 15px #6366f133}.diff-icon{font-size:1.4rem;display:block;margin-bottom:4px}.player-rows{display:flex;flex-direction:column;gap:16px}.player-row{display:flex;align-items:center;gap:12px}.player-indicator{width:36px;height:36px;border-radius:50%;flex-shrink:0;box-shadow:0 0 15px currentColor}.player-input{flex:1;padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:var(--surface2);color:var(--text);font-size:.95rem;font-family:Inter,sans-serif;outline:none;transition:border-color .2s}.player-input:focus{border-color:var(--accent)}.color-swatches{display:flex;gap:8px;flex-wrap:wrap}.swatch{width:28px;height:28px;border-radius:50%;cursor:pointer;border:3px solid transparent;transition:all .15s;box-shadow:0 2px 8px #0006}.swatch:hover{transform:scale(1.2)}.swatch.active{border-color:#fff;transform:scale(1.2);box-shadow:0 0 12px currentColor}.color-custom-input{width:28px;height:28px;border-radius:50%;border:3px solid var(--border);cursor:pointer;padding:0;background:conic-gradient(#ef4444,#f97316,#eab308,#22c55e,#3b82f6,#a855f7,#ef4444);overflow:hidden}.setup-actions{display:flex;gap:12px;width:100%}.btn{padding:14px 24px;border-radius:12px;border:none;cursor:pointer;font-size:1rem;font-weight:700;transition:all .2s;font-family:Inter,sans-serif}.btn-primary{flex:1;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;box-shadow:0 4px 20px #6366f166}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px #6366f180}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--surface);color:var(--text2);border:1px solid var(--border)}.btn-secondary:hover{color:var(--text);border-color:var(--text2)}.game{display:flex;flex-direction:column;align-items:center;gap:16px;z-index:1;width:100%}.game-header{display:flex;align-items:center;gap:16px;width:100%;max-width:780px}.game-logo{font-family:Orbitron,sans-serif;font-size:1rem;font-weight:900;background:linear-gradient(135deg,#818cf8,#e879f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;flex:1}.game-body{display:flex;align-items:flex-start;gap:16px;width:100%;max-width:780px}.player-panel{flex:0 0 160px;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:20px 16px;display:flex;flex-direction:column;align-items:center;gap:12px;transition:all .3s;position:relative;overflow:hidden}.player-panel.active{border-color:var(--player-color, #6366f1);box-shadow:0 0 25px rgba(var(--player-rgb, 99,102,241),.25),inset 0 0 30px rgba(var(--player-rgb, 99,102,241),.05);animation:pulse-border 2s ease-in-out infinite}.player-panel.active:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--player-color);box-shadow:0 0 10px var(--player-color)}.player-avatar{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.6rem;background:radial-gradient(circle at 35% 35%,color-mix(in srgb,var(--player-color) 80%,white),var(--player-color),color-mix(in srgb,var(--player-color) 80%,black));box-shadow:0 0 0 3px #ffffff1a,0 0 20px var(--player-color),0 4px 12px #00000080,inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0000004d;position:relative}.player-avatar:after{content:"";position:absolute;top:20%;left:25%;width:30%;height:25%;background:rgba(255,255,255,.5);border-radius:50%;filter:blur(2px)}.player-name{font-weight:700;font-size:.9rem;text-align:center;color:var(--text);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.player-elo{font-size:.75rem;color:var(--text2);display:flex;align-items:center;gap:4px}.player-elo span{color:#fbbf24;font-weight:700}.player-score{font-family:Orbitron,sans-serif;font-size:2.2rem;font-weight:900;color:var(--player-color);text-shadow:0 0 20px var(--player-color)}.player-turn-indicator{font-size:.7rem;color:var(--player-color);text-transform:uppercase;letter-spacing:.1em;font-weight:700;animation:pulse-border 1s ease-in-out infinite}.thinking-indicator{display:flex;gap:4px;align-items:center}.thinking-dot{width:6px;height:6px;border-radius:50%;background:var(--player-color);animation:thinking-dots 1.2s ease-in-out infinite}.thinking-dot:nth-child(2){animation-delay:.2s}.thinking-dot:nth-child(3){animation-delay:.4s}.elo-flyout{position:absolute;top:10px;font-size:.9rem;font-weight:700;animation:elo-change 1.5s ease-out .5s forwards;pointer-events:none;white-space:nowrap}.board-wrapper{flex:1;display:flex;flex-direction:column;align-items:center;gap:0;perspective:1200px}.board-3d-container{transform:rotateX(4deg);transform-style:preserve-3d;transition:transform .3s}.board-3d-container:hover{transform:rotateX(2deg)}.board-col-indicators{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;width:100%;margin-bottom:6px;padding:0 8px}.col-indicator{height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .15s;font-size:.7rem}.col-indicator.active{animation:col-preview-pulse .8s ease-in-out infinite}.board-frame{background:linear-gradient(145deg,#1a2a5e,#0d1a3e,#1a2a5e);border-radius:20px;padding:10px;box-shadow:0 20px 60px #0009,0 0 0 2px #6366f133,inset 0 2px #ffffff14,inset 0 -2px #0000004d,0 0 80px #1e3a8a66;position:relative;transform-style:preserve-3d}.board-frame:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:20px;background:linear-gradient(to bottom,rgba(255,255,255,.06) 0%,transparent 30%,transparent 70%,rgba(0,0,0,.3) 100%);pointer-events:none}.board-grid{display:grid;grid-template-columns:repeat(7,1fr);grid-template-rows:repeat(6,1fr);gap:5px}.cell{width:62px;height:62px;border-radius:50%;cursor:pointer;position:relative;transition:background .15s}.cell-hole{position:absolute;top:3px;right:3px;bottom:3px;left:3px;border-radius:50%;background:radial-gradient(circle at 40% 35%,#0c1428,#040810);box-shadow:inset 0 2px 6px #000c,inset 0 -1px 2px #ffffff08;transition:all .15s}.cell.hovered .cell-hole{background:radial-gradient(circle at 40% 35%,rgba(255,255,255,.08),#040810)}.cell-piece{position:absolute;top:3px;right:3px;bottom:3px;left:3px;border-radius:50%;transition:opacity .1s}.cell-piece.new{animation:piece-land .45s cubic-bezier(.34,1.56,.64,1) forwards}.cell-piece.win{animation:win-pulse .7s ease-in-out infinite}.piece-sphere{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;box-shadow:inset -4px -4px 8px #00000080,inset 3px 3px 6px #ffffff4d}.piece-highlight{position:absolute;top:18%;left:22%;width:35%;height:28%;background:rgba(255,255,255,.55);border-radius:50%;filter:blur(3px);transform:rotate(-30deg)}.piece-highlight-2{position:absolute;bottom:15%;right:18%;width:18%;height:14%;background:rgba(255,255,255,.2);border-radius:50%;filter:blur(2px)}.win-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(6,8,15,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;animation:slide-up .4s ease-out}.win-card{background:var(--surface);border:1px solid var(--border);border-radius:28px;padding:40px;text-align:center;max-width:380px;width:90%;animation:slide-up .4s ease-out;position:relative;overflow:hidden}.win-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 50% 0%,var(--win-color, rgba(99,102,241,.15)),transparent 60%);pointer-events:none}.win-trophy{font-size:4rem;margin-bottom:16px}.win-result{font-family:Orbitron,sans-serif;font-size:1.8rem;font-weight:900;margin-bottom:8px}.win-player{font-size:1.1rem;color:var(--text2);margin-bottom:24px}.win-elo{font-size:1rem;margin-bottom:28px}.win-elo .elo-val{font-weight:700;font-size:1.1rem}.win-elo .pos{color:#4ade80}.win-elo .neg{color:#f87171}.win-actions{display:flex;gap:12px;justify-content:center}.particles-canvas{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:99}.online-queue{display:flex;flex-direction:column;align-items:center;gap:24px;z-index:1}.queue-spinner{width:60px;height:60px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 700px){.cell{width:44px;height:44px}.board-frame{padding:6px}.board-grid{gap:4px}.player-panel{flex:0 0 90px;padding:12px 8px}.player-score{font-size:1.6rem}.player-avatar{width:42px;height:42px;font-size:1.2rem}.game-body{gap:8px}}@media (max-width: 500px){.cell{width:38px;height:38px}.board-grid{gap:3px}}