:root{--bg:#08080f;--bg2:#0d0d18;--card:#131320;--card2:#1a1a2e;--card3:#20203a;--orange:#ff5f00;--orange-g:#ff5f0038;--orange-b:#ff5f0080;--blue:#00d4ff;--blue-g:#00d4ff26;--green:#0fa;--green-g:#00ffaa26;--red:#ff2d55;--yellow:#fc0;--text:#fff;--text2:#e0e0ff;--text3:#a0a0cc;--border:#ffffff0f;--border2:#ffffff1c;--pboard:#000;--pborder:#0000004d;--scan:#00000012;--shadow:0 20px 60px #000c;--r:12px;--rs:8px}[data-theme=light]{--bg:#f2f2f7;--bg2:#e5e5ea;--card:#fff;--card2:#f8f8fc;--orange-g:#ff5f001a;--orange-b:#ff5f0061;--blue-g:#00d4ff14;--green-g:#00ffaa14;--text:#050510;--text2:#1a1a3a;--text3:#335;--border:#00000012;--border2:#00000021;--pboard:#d8d8ee;--pborder:#0000001f;--scan:#00000005;--shadow:0 12px 40px #0000002e}body[data-mode=casual]{--orange:#00d4ff;--orange-b:#00d4ff80;--orange-g:#00d4ff38}body[data-mode=casual] #screen-game{background:radial-gradient(ellipse at 50% 10%,#00d4ff26 0%,var(--bg) 60%)}body[data-mode=challenge] #screen-game{background:radial-gradient(ellipse at 50% 10%,#ff5f0026 0%,var(--bg) 60%)}body[data-mode=expert]{--orange:#ff2d55;--orange-b:#ff2d5580;--orange-g:#ff2d5538}body[data-mode=expert] #screen-game{background:radial-gradient(ellipse at 50% 10%,#ff2d5540 0%,var(--bg) 65%);animation:3s ease-in-out infinite alternate expertBreath}@keyframes expertBreath{0%{box-shadow:inset 0 0 #ff2d5500}to{box-shadow:inset 0 0 100px #ff2d5540}}*,:before,:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{background:var(--bg);width:100%;height:100%;color:var(--text);font-family:Rajdhani,sans-serif;transition:background .4s,color .4s;overflow:hidden}.screen{opacity:0;pointer-events:none;flex-direction:column;transition:opacity .32s,transform .32s;display:flex;position:fixed;inset:0;overflow:hidden auto;transform:translateY(14px)}.screen.active{opacity:1;pointer-events:all;transform:none}.btn-pri{background:linear-gradient(135deg,var(--orange),#c30);color:#fff;letter-spacing:2px;border-radius:var(--r);cursor:pointer;text-transform:uppercase;white-space:nowrap;box-shadow:0 4px 22px var(--orange-g),inset 0 1px 0 #ffffff26;border:none;padding:14px 34px;font-family:Orbitron,sans-serif;font-size:14px;font-weight:700;transition:all .25s}.btn-pri:hover{box-shadow:0 8px 36px var(--orange-b);transform:translateY(-2px)}.btn-pri:disabled{opacity:.35;cursor:not-allowed;transform:none}.btn-ghost{color:var(--text2);border:1px solid var(--border2);border-radius:var(--r);cursor:pointer;background:0 0;padding:11px 22px;font-family:Rajdhani,sans-serif;font-size:15px;font-weight:600;transition:all .2s}.btn-ghost:hover{border-color:var(--orange-b);color:var(--text);background:var(--orange-g)}.btn-daily{color:#fff;border-radius:var(--r);cursor:pointer;letter-spacing:.5px;background:linear-gradient(135deg,#7c3aed,#2563eb);border:none;padding:11px 22px;font-family:Rajdhani,sans-serif;font-size:15px;font-weight:700;transition:all .2s}.btn-daily:hover{opacity:.9;transform:translateY(-1px)}.btn-daily.done{opacity:.8;background:linear-gradient(135deg,#065f46,#047857)}.daily-countdown{color:var(--text3);text-align:center;letter-spacing:.5px;margin-top:4px;font-size:11px}.icon-btn{background:var(--card);border:1px solid var(--border2);color:var(--text2);border-radius:var(--rs);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex}.icon-btn:hover{border-color:var(--orange-b);color:var(--orange)}.quit-btn{border-radius:var(--r);cursor:pointer;background:#ff2d5514;align-items:center;gap:4px;padding:5px 12px;font-family:Rajdhani,sans-serif;font-size:14px;font-weight:900;transition:all .2s;display:flex;color:var(--red)!important;border:2px solid #ff2d5580!important}.quit-btn:hover{border-color:var(--red)!important;color:#fff!important;background:#ff2d5533!important}.divider{background:linear-gradient(90deg,transparent,var(--orange-b),transparent);width:100%;height:1px}.section-label{letter-spacing:3px;text-transform:uppercase;color:var(--text3);margin-bottom:10px;font-size:11px;font-weight:700}#screen-home{background:radial-gradient(ellipse at 15% 10%,#ff5f0021 0%,transparent 55%),radial-gradient(ellipse at 85% 85%,#00d4ff12 0%,transparent 55%),var(--bg);align-items:center;padding:16px 18px 0}#screen-home:before{content:"";pointer-events:none;z-index:0;background:repeating-linear-gradient(0deg,transparent,transparent 2px,var(--scan) 2px,var(--scan) 4px);position:fixed;inset:0}.home-wrap{z-index:1;flex-direction:column;align-items:center;gap:16px;width:100%;max-width:440px;margin:0 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15px}.prog-panel-title{color:var(--orange);letter-spacing:2px;text-transform:uppercase;margin-bottom:10px;font-family:Orbitron,sans-serif;font-size:10px;font-weight:700}.prog-diff-row{margin-bottom:8px}.prog-diff-label{color:var(--text2);justify-content:space-between;margin-bottom:4px;font-size:11px;font-weight:600;display:flex}.prog-bar-bg{background:var(--card2);border-radius:3px;width:100%;height:6px;overflow:hidden}.prog-bar-fill{border-radius:3px;height:100%;transition:width .4s}.setup-topbar{background:var(--card);border-bottom:1px solid var(--border);z-index:10;flex-shrink:0;align-items:center;gap:13px;padding:12px 17px;display:flex;position:sticky;top:0}.back-btn{color:var(--text2);cursor:pointer;background:0 0;border:none;padding:2px 5px;font-size:20px;transition:color .2s}.back-btn:hover{color:var(--orange)}.topbar-title{color:var(--orange);letter-spacing:2px;text-transform:uppercase;font-family:Orbitron,sans-serif;font-size:12px;font-weight:700}.setup-scroll{flex:1;padding:18px 18px 48px;overflow-y:auto}.setup-inner{flex-direction:column;gap:22px;width:100%;max-width:440px;margin:0 auto;display:flex}.diff-cards{flex-direction:column;gap:7px;display:flex}.diff-card{background:var(--card2);border:1px solid var(--border);border-radius:var(--r);cursor:pointer;align-items:center;gap:12px;padding:12px 14px;transition:all .2s;display:flex}.diff-card:hover:not(.locked){border-color:var(--orange-b)}.diff-card.sel{border-color:var(--orange);background:var(--orange-g)}.diff-card.locked{opacity:.5;cursor:not-allowed}.diff-icon{flex-shrink:0;font-size:24px}.diff-name{color:var(--text);margin-bottom:2px;font-family:Orbitron,sans-serif;font-size:12px;font-weight:700}.diff-desc{color:var(--text2);font-size:12px;font-weight:500;line-height:1.3}.diff-lock-info{color:var(--red);margin-top:3px;font-size:10px;display:none}.diff-card.locked .diff-lock-info{display:block}.diff-badge{letter-spacing:1px;opacity:0;border-radius:20px;flex-shrink:0;padding:3px 7px;font-family:Orbitron,sans-serif;font-size:9px;font-weight:700;transition:opacity .2s}.diff-card.sel .diff-badge{opacity:1}.diff-card[data-d=casual] .diff-badge{color:var(--green);background:#00ffaa1f}.diff-card[data-d=challenge] .diff-badge{color:var(--yellow);background:#ffcc001f}.diff-card[data-d=expert] .diff-badge{color:var(--red);background:#ff2d551f}.grid-btns{grid-template-columns:repeat(5,1fr);gap:6px;display:grid}.gb{background:var(--card2);border:1px solid var(--border);border-radius:var(--rs);height:60px;color:var(--text2);cursor:pointer;justify-content:center;align-items:center;font-family:Orbitron,sans-serif;font-size:13px;font-weight:700;transition:all .2s;display:flex;position:relative}.gb:hover:not(.locked){border-color:var(--orange-b);color:var(--text)}.gb.sel{background:var(--orange);border-color:var(--orange);color:#fff;box-shadow:0 4px 18px var(--orange-g)}.gb.done{border-color:#00ffaa59}.gb-ck{color:var(--green);font-size:7px;position:absolute;top:2px;right:3px}.gb.locked{opacity:.4;cursor:not-allowed;font-size:16px}.gb.locked:hover{border-color:var(--border);color:var(--text3)}.img-grid{grid-template-columns:repeat(auto-fill,minmax(86px,1fr));gap:7px;display:grid}.img-thumb{aspect-ratio:1;border-radius:var(--rs);cursor:pointer;background:var(--card2);border:2px solid #0000;transition:all .2s;position:relative;overflow:hidden}.img-thumb img{object-fit:cover;width:100%;height:100%;display:block}.img-thumb:hover{border-color:var(--orange-b);transform:scale(1.04)}.img-thumb.sel{border-color:var(--orange);box-shadow:0 0 20px var(--orange-g)}.img-thumb.sel:after{content:"✓";color:#fff;background:#ff5f0052;justify-content:center;align-items:center;font-size:22px;font-weight:900;display:flex;position:absolute;inset:0}.img-cap{color:#fff;text-align:center;text-transform:uppercase;letter-spacing:.8px;background:linear-gradient(#0000,#000000d9);padding:10px 4px 3px;font-size:9px;font-weight:600;position:absolute;bottom:0;left:0;right:0}.upload-thumb{border:2px dashed var(--border2);flex-direction:column;justify-content:center;align-items:center;gap:4px;display:flex}.upload-thumb:hover:not(.locked){border-color:var(--orange-b);background:var(--orange-g)}.upload-thumb.locked{cursor:not-allowed;opacity:.5}.start-btn{background:linear-gradient(135deg,var(--orange),#cc3000);border-radius:var(--r);color:#fff;letter-spacing:2px;text-transform:uppercase;cursor:pointer;width:100%;box-shadow:0 4px 28px var(--orange-g);border:none;padding:16px;font-family:Orbitron,sans-serif;font-size:15px;font-weight:700;transition:all .3s}.start-btn:hover:not(:disabled){box-shadow:0 8px 40px var(--orange-b);transform:translateY(-2px)}.start-btn:disabled{opacity:.35;cursor:not-allowed;transform:none}#screen-game{background:0 0;overflow:hidden}.game-hdr{background:var(--card);border-bottom:1px solid var(--border);flex-direction:column;flex-shrink:0;display:flex}.game-hdr-top{border-bottom:1px solid var(--border);align-items:center;gap:4px;padding:6px 8px;display:flex}.game-hdr-stats{gap:5px;padding:5px 8px;display:flex}.game-auth-chip{background:var(--card2);border:1px solid var(--border);cursor:pointer;border-radius:20px;flex-shrink:0;align-items:center;gap:5px;padding:2px 8px 2px 2px;display:none}.stat-box{background:var(--card2);border:1px solid var(--border);border-radius:var(--rs);text-align:center;flex:1;min-width:0;padding:6px 8px;transition:all .3s}.stat-box.warn{background:#ffcc0012;border-color:#ffcc0080}.stat-box.danger{background:#ff2d5514;border-color:#ff2d5580}.stat-lbl{text-transform:uppercase;letter-spacing:1.5px;color:var(--text3);margin-bottom:1px;font-size:8px;display:block}.stat-val{color:var(--text);font-family:Orbitron,sans-serif;font-size:15px;font-weight:700;line-height:1;display:block}.stat-val small{color:var(--text3);margin-left:2px;font-size:10px;font-weight:400}.stat-box.warn .stat-val{color:var(--yellow)}.stat-box.danger .stat-val{color:var(--red)}.hdr-icons{flex-shrink:0;align-items:center;gap:4px;display:flex}.mode-badge{background:var(--card2);border:1px solid var(--border);border-radius:var(--rs);color:var(--orange);white-space:nowrap;align-items:center;height:36px;margin-right:4px;padding:0 10px;font-family:Orbitron,sans-serif;font-size:12px;font-weight:700;display:flex}.game-body{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:7px;padding:8px 10px;display:flex;position:relative;overflow:hidden}.game-prog-bar{background:var(--card2);border-radius:2px;flex-shrink:0;width:100%;max-width:560px;height:4px;overflow:hidden}.game-prog-fill{background:linear-gradient(90deg,var(--orange),var(--blue));width:0%;height:100%;transition:width .3s}.game-prog-fill.nitro-active{background:linear-gradient(90deg,var(--blue),var(--green));animation:.3s infinite alternate pulseNF}@keyframes pulseNF{0%{filter:brightness()}to{filter:brightness(1.4);box-shadow:0 0 10px var(--blue)}}.crash-warn-bar{background:0 0;border-radius:2px;flex-shrink:0;width:100%;max-width:560px;height:3px;display:none}.crash-warn-bar.active{display:block}.crash-warn-fill{background:linear-gradient(90deg,var(--yellow),var(--red));border-radius:2px;height:100%;transition:width .3s}@keyframes epicNitroBoard{0%{box-shadow:0 0 20px var(--blue),inset 0 0 10px var(--blue);border-color:var(--blue)}to{box-shadow:0 0 70px var(--green),inset 0 0 30px var(--green);border-color:var(--green)}}#board{background:var(--pboard);border:2px solid var(--border2);box-shadow:var(--shadow);border-radius:6px;flex-shrink:0;transition:border-color .4s,box-shadow .4s;display:grid;position:relative;overflow:hidden}#board.victory{border-color:var(--green);box-shadow:0 10px 60px #000000b3,0 0 60px #00ffaa47}#board.crash-shake{border-color:var(--red);animation:.35s cubic-bezier(.36,.07,.19,.97) both shakeCrash}#board.paused-board:after{content:"⏸";z-index:10;background:#000000b8;justify-content:center;align-items:center;font-size:60px;display:flex;position:absolute;inset:0}#board.nitro-active{z-index:10;animation:.35s ease-in-out infinite alternate epicNitroBoard}@keyframes shakeCrash{10%,90%{transform:translate(-2px)}20%,80%{transform:translate(4px)}30%,50%,70%{transform:translate(-6px)}40%,60%{transform:translate(6px)}}.piece{cursor:pointer;border:1px solid var(--pborder);-webkit-user-select:none;user-select:none;background-repeat:no-repeat;transition:transform .22s cubic-bezier(.25,1,.5,1),filter .15s,box-shadow .15s;position:relative}.piece:hover{z-index:1;filter:brightness(1.1)}.piece.sel{z-index:2;box-shadow:inset 0 0 0 3px var(--orange),0 0 20px var(--orange-b);filter:brightness(1.15)}.piece.correct{box-shadow:inset 0 0 0 2px var(--green),0 0 15px var(--green-g);pointer-events:none;cursor:default;z-index:0;filter:brightness()!important}.piece.hint-target{animation:.4s infinite alternate hPulse}@keyframes hPulse{0%{box-shadow:inset 0 0 0 2px var(--blue)}to{box-shadow:inset 0 0 0 5px var(--blue),0 0 20px var(--blue)}}.piece-num{color:#ffffffe6;pointer-events:none;background:#0009;border-radius:3px;padding:1px 3px;font-family:Orbitron,sans-serif;font-size:9px;font-weight:700;display:none;position:absolute;top:2px;left:3px}.show-nums .piece-num{display:block}@keyframes swapF{0%,to{filter:brightness()}50%{filter:brightness(1.4)}}.piece.flash{animation:.2s swapF}.countdown-ov{z-index:150;background:#08080ff0;flex-direction:column;justify-content:center;align-items:center;display:none;position:absolute;inset:0}.light-row{background:#111;border:2px solid #222;border-radius:40px;gap:15px;margin-bottom:20px;padding:15px 25px;display:flex}.light-bulb{background:#252525;border-radius:50%;width:34px;height:34px;transition:all .1s;box-shadow:inset 0 3px 5px #000c}.light-bulb.red{background:#ff2d55;box-shadow:0 0 30px #ff2d55,inset 0 1px 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