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#00ff0080;width:100%;max-width:min(280px,80vw);box-sizing:border-box;word-wrap:break-word;line-height:1.3}.paratroopers-start-button:hover{background:#0c0;border-color:#0c0;box-shadow:0 0 30px #0f0c;transform:scale(1.05)}.paratroopers-start-button:active{transform:scale(.98)}.paratroopers-gameover-overlay{position:fixed;top:0;left:0;width:100vw;width:100%;height:100vh;height:100dvh;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);overflow-y:auto;overflow-x:hidden;padding:clamp(.5rem,2vw,1rem);box-sizing:border-box;-webkit-overflow-scrolling:touch}.paratroopers-gameover-content{text-align:center;color:#fff;padding:clamp(1rem,3vw,1.5rem);max-width:min(400px,92vw);width:100%;background:#1a1a1af2;border:2px solid #4A4A4A;border-radius:4px;margin:auto;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;min-height:fit-content;max-height:calc(100vh - 2rem);max-height:calc(100dvh - 2rem);overflow-y:auto;overflow-x:hidden}.paratroopers-gameover-title{font-size:clamp(1.25rem,4.5vw,2rem);font-weight:800;color:red;font-family:monospace;text-shadow:0 0 20px #FF0000;margin-bottom:clamp(.75rem,2.5vw,1.25rem);line-height:1.2;word-wrap:break-word;width:100%;padding:0;flex-shrink:0}.paratroopers-gameover-score{font-size:clamp(.875rem,3vw,1.25rem);font-family:monospace;color:#fff;margin-bottom:clamp(1rem,3vw,1.75rem);line-height:1.3;width:100%;padding:0;flex-shrink:0}.paratroopers-gameover-buttons{display:flex;flex-direction:column;gap:clamp(.625rem,2vw,.75rem);align-items:stretch;width:100%;max-width:100%;padding:0;flex-shrink:0}.paratroopers-gameover-button{background:#228b22;color:#fff;border:2px solid #228B22;padding:clamp(.5rem,1.8vw,.75rem) clamp(.625rem,2.5vw,1rem);font-size:clamp(.75rem,2.2vw,.95rem);font-weight:700;font-family:monospace;cursor:pointer;transition:all .3s ease;text-transform:uppercase;width:100%;box-sizing:border-box;word-wrap:break-word;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-height:clamp(36px,8vw,44px)}.paratroopers-gameover-button:hover{background:#32cd32;border-color:#32cd32;transform:translateY(-2px);box-shadow:0 4px 12px #228b2280}.paratroopers-gameover-button:active{transform:translateY(0)}.paratroopers-share-button{background:#667eea!important;border-color:#667eea!important}.paratroopers-share-button:hover{background:#5568d3!important;border-color:#5568d3!important;box-shadow:0 4px 12px #667eea80!important}.paratroopers-leaderboard-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;height:100dvh;background:#000000f2;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);overflow-y:auto;padding:2rem 1rem}.paratroopers-leaderboard-content{width:100%;max-width:800px}@media (max-width: 768px){*{touch-action:manipulation}body{overflow:hidden;position:fixed;width:100%;height:100%}}.paratroopers-rotate-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;height:100dvh;background:#000000f2;display:flex;align-items:center;justify-content:center;z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.paratroopers-rotate-content{text-align:center;color:#fff;padding:clamp(1.5rem,4vw,2rem);max-width:min(400px,90vw);width:90%;margin:0 auto}.paratroopers-rotate-icon{font-size:clamp(3rem,10vw,4rem);margin-bottom:clamp(1rem,3vw,1.5rem);animation:rotate 2s linear infinite}@keyframes rotate{0%{transform:rotate(0)}25%{transform:rotate(90deg)}50%{transform:rotate(90deg)}75%{transform:rotate(90deg)}to{transform:rotate(0)}}.paratroopers-rotate-title{font-size:clamp(1.25rem,5vw,2.5rem);font-weight:800;color:#0f0;font-family:monospace;text-shadow:0 0 20px #00FF00;margin-bottom:clamp(.75rem,2vw,1rem)}.paratroopers-rotate-text{font-size:clamp(.9rem,3.5vw,1.2rem);font-family:monospace;color:#ccc;line-height:1.6;margin-bottom:clamp(1.5rem,4vw,2rem)}.paratroopers-rotate-back-button{background:#228b22;color:#fff;border:2px solid #228B22;padding:clamp(.75rem,2.5vw,1rem) clamp(1rem,4vw,1.5rem);font-size:clamp(.875rem,3vw,1.1rem);font-weight:700;font-family:monospace;cursor:pointer;transition:all .3s ease;text-transform:uppercase;width:100%;max-width:300px;margin:0 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#00FF00;margin-bottom:clamp(.75rem,2vw,1rem);line-height:1.2}.paratroopers-signin-subtitle{font-size:clamp(.9rem,3vw,1.1rem);font-family:monospace;color:#ccc;margin-bottom:clamp(1.5rem,4vw,2rem);line-height:1.4}.paratroopers-signin-buttons{display:flex;flex-direction:column;gap:clamp(.5rem,1.5vw,.75rem);align-items:stretch;width:100%}.paratroopers-signin-button{padding:clamp(.625rem,2vw,.875rem) clamp(.75rem,3vw,1.25rem);font-size:clamp(.8rem,2.5vw,1rem);font-weight:700;font-family:monospace;cursor:pointer;transition:all .3s ease;text-transform:uppercase;width:100%;box-sizing:border-box;border:2px solid;line-height:1.3;min-height:clamp(36px,8vw,44px)}.paratroopers-signin-google{background:#4285f4;color:#fff;border-color:#4285f4}.paratroopers-signin-google:hover:not(:disabled){background:#357ae8;border-color:#357ae8;transform:translateY(-2px);box-shadow:0 4px 12px #4285f480}.paratroopers-signin-google:disabled{opacity:.6;cursor:not-allowed}.paratroopers-signin-skip{background:transparent;color:#ccc;border-color:#4a4a4a}.paratroopers-signin-skip:hover:not(:disabled){background:#4a4a4a4d;border-color:#666;color:#fff}.paratroopers-signin-skip:disabled{opacity:.6;cursor:not-allowed}@media (min-width: 769px){.paratroopers-canvas{max-width:100vw;max-height:100vh;object-fit:contain}}.sudoku-leaderboard{padding:clamp(1rem,4vw,1.5rem);background:#fff;border-radius:clamp(12px,3vw,16px);box-shadow:0 8px 32px #0000004d;position:relative;width:100%;box-sizing:border-box;border:3px solid rgba(102,126,234,.2);display:flex;flex-direction:column;max-height:calc(100dvh - 2rem);overflow:hidden}.sudoku-leaderboard-header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:clamp(1rem,4vw,1.5rem);gap:1rem}.sudoku-leaderboard-title{font-size:clamp(1.25rem,5vw,1.5rem);font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0;text-align:left;flex:1}.sudoku-leaderboard-close-button-header{width:clamp(32px,8vw,40px);height:clamp(32px,8vw,40px);border-radius:50%;border:2px solid #667eea;background:#fff;color:#667eea;font-size:clamp(1.25rem,5vw,1.5rem);font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;flex-shrink:0;line-height:1;padding:0}.sudoku-leaderboard-close-button-header:hover{background:#667eea;color:#fff;transform:scale(1.1)}.sudoku-leaderboard-close-button-header:active{transform:scale(1)}.sudoku-leaderboard-table{width:100%;flex:1;overflow-y:auto;min-height:0}.sudoku-leaderboard-header{display:grid;grid-template-columns:70px 1fr 140px;gap:1rem;padding:.875rem 1rem;background:linear-gradient(135deg,#667eea1a,#764ba21a);border-radius:8px;font-weight:600;font-size:.875rem;color:#667eea;text-transform:uppercase;letter-spacing:.5px;border:2px solid rgba(102,126,234,.2)}.sudoku-leaderboard-body{margin-top:.5rem;flex:1;overflow-y:auto;min-height:0}.sudoku-leaderboard-row{display:grid;grid-template-columns:70px 1fr 140px;gap:1rem;padding:1rem;border-bottom:1px solid rgba(102,126,234,.15);align-items:center;transition:background-color .2s ease}.sudoku-leaderboard-row:last-child{border-bottom:none}.sudoku-leaderboard-row:hover{background-color:#667eea0d}.sudoku-leaderboard-row-current-user{background:linear-gradient(135deg,#667eea26,#764ba226)!important;border:2px solid #667eea;border-radius:8px;box-shadow:0 2px 8px #667eea4d;margin:.25rem 0;font-weight:600}.sudoku-leaderboard-row-current-user:hover{background:linear-gradient(135deg,#667eea33,#764ba233)!important}.sudoku-leaderboard-you-indicator{font-size:1.2rem;display:inline-block;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.sudoku-leaderboard-rank{font-weight:700;color:#667eea;font-size:1.1rem;text-align:center}.sudoku-leaderboard-player{display:flex;align-items:center;gap:.75rem}.sudoku-leaderboard-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;border:2px solid rgba(102,126,234,.3)}.sudoku-leaderboard-row-current-user .sudoku-leaderboard-avatar{border:2px solid #667eea;box-shadow:0 2px 4px #667eea4d}.sudoku-leaderboard-name{font-weight:500;color:#333}.sudoku-leaderboard-row-current-user .sudoku-leaderboard-name{font-weight:600;color:#667eea}.sudoku-leaderboard-time{font-family:Courier New,monospace;font-weight:700;color:#667eea;font-size:1rem;text-align:center}.sudoku-leaderboard-row-current-user .sudoku-leaderboard-time{color:#764ba2;font-weight:800}.sudoku-leaderboard-loading-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;height:100dvh;background:#000000b3;display:flex;justify-content:center;align-items:center;z-index:9999;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:clamp(.5rem,3vw,1rem);box-sizing:border-box}.sudoku-leaderboard-loading-content{background:#fff;padding:clamp(1.5rem,5vw,2rem) clamp(2rem,6vw,3rem);border-radius:clamp(8px,2vw,12px);box-shadow:0 8px 32px #0000004d;text-align:center;color:#333;max-width:min(90vw,400px);width:100%;box-sizing:border-box}.sudoku-leaderboard-loading-content p{margin:1rem 0 0;font-size:1rem;font-weight:500;color:#666}.sudoku-leaderboard-error{text-align:center;padding:2rem;color:#666}.sudoku-leaderboard-empty-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;height:100dvh;background:#000000b3;display:flex;justify-content:center;align-items:center;z-index:9999;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:clamp(.5rem,3vw,1rem);box-sizing:border-box}.sudoku-leaderboard-empty-content{background:#fff;padding:clamp(1.5rem,6vw,3rem);border-radius:clamp(8px,2vw,12px);box-shadow:0 8px 32px #0000004d;text-align:center;max-width:min(90vw,400px);width:100%;box-sizing:border-box}.sudoku-leaderboard-empty-icon{font-size:4rem;margin-bottom:1rem}.sudoku-leaderboard-empty-title{font-size:1.5rem;font-weight:700;color:#333;margin:0 0 1rem}.sudoku-leaderboard-empty-message{font-size:1rem;color:#666;margin:0 0 2rem;line-height:1.6}.sudoku-leaderboard-close-button{padding:.75rem 2rem;font-size:1rem;font-weight:600;background:#667eea;color:#fff;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #667eea4d}.sudoku-leaderboard-close-button:hover{background:#5568d3;transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.sudoku-leaderboard-close-button:active{transform:translateY(0)}.sudoku-leaderboard-spinner{width:50px;height:50px;border:4px solid #e9ecef;border-top-color:#667eea;border-radius:50%;animation:spin .8s linear infinite;margin:0 auto}@media (max-width: 768px){.sudoku-leaderboard{padding:1rem}.sudoku-leaderboard-header,.sudoku-leaderboard-row{grid-template-columns:60px 1fr 120px;gap:.75rem;padding:.875rem .75rem}.sudoku-leaderboard-title{font-size:1.25rem}.sudoku-leaderboard-time,.sudoku-leaderboard-name{font-size:.875rem}}.sudoku-game{min-height:100vh;min-height:100dvh;background:linear-gradient(135deg,#667eea,#764ba2);padding:0;display:flex;flex-direction:column;overflow-x:hidden}.sudoku-container{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:clamp(.5rem,2vw,1rem);min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.sudoku-timer-container{width:100%;max-width:600px;display:flex;justify-content:center;align-items:center;margin-bottom:clamp(.5rem,2vw,1rem);text-align:center;flex-shrink:0}.sudoku-timer{display:flex;align-items:center;justify-content:center;gap:clamp(.25rem,1.5vw,.5rem);font-size:clamp(.75rem,3vw,1rem);font-weight:700;color:#fff;background:linear-gradient(135deg,#ffffff40,#ffffff26);padding:clamp(.375rem,2vw,.5rem) clamp(.625rem,3vw,.875rem);border-radius:clamp(8px,2vw,12px);min-width:clamp(70px,20vw,90px);text-align:center;font-variant-numeric:tabular-nums;box-shadow:0 4px 15px #0003;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid rgba(255,255,255,.3);animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);box-shadow:0 4px 15px #0003}50%{transform:scale(1.02);box-shadow:0 6px 20px #0000004d}}.sudoku-timer-icon{width:clamp(14px,4vw,18px);height:clamp(14px,4vw,18px);color:#fff;animation:rotate 2s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.sudoku-timer-text{letter-spacing:2px;text-shadow:0 2px 4px rgba(0,0,0,.3)}.sudoku-completion-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;height:100dvh;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:clamp(.5rem,3vw,1rem);box-sizing:border-box;overflow-y:auto;-webkit-overflow-scrolling:touch}.sudoku-completion-message{background:linear-gradient(135deg,#667eea,#764ba2);padding:clamp(1rem,4vw,2rem);border-radius:clamp(12px,3vw,16px);box-shadow:0 8px 30px #0000004d;text-align:center;max-width:min(90vw,500px);width:100%;animation:slideDown .5s ease-out;border:3px solid rgba(255,255,255,.3);box-sizing:border-box}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.sudoku-completion-icon{font-size:clamp(2.5rem,12vw,4rem);margin-bottom:clamp(.25rem,1.5vw,.5rem);animation:bounce 1s ease-in-out infinite}.sudoku-completion-message h2{margin:clamp(.25rem,1.5vw,.5rem) 0;color:#fff;font-size:clamp(1.25rem,6vw,2rem);font-weight:800;text-shadow:0 2px 4px rgba(0,0,0,.2)}.sudoku-completion-message h3{margin:clamp(.25rem,1.5vw,.5rem) 0 clamp(.75rem,4vw,1.5rem) 0;color:#ffffffe6;font-size:clamp(.875rem,4vw,1.3rem);font-weight:600}.sudoku-completion-time{background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:clamp(.75rem,4vw,1.5rem);border-radius:clamp(8px,2vw,12px);border:2px solid rgba(255,255,255,.3);display:flex;flex-direction:column;align-items:center;gap:clamp(.25rem,1.5vw,.5rem);margin-bottom:clamp(.75rem,4vw,1.5rem)}.sudoku-completion-time-label{color:#ffffffe6;font-size:clamp(.75rem,3vw,1rem);font-weight:500;text-transform:uppercase;letter-spacing:1px}.sudoku-completion-time-value{color:#fff;font-size:clamp(1.5rem,8vw,3rem);font-weight:800;font-variant-numeric:tabular-nums;text-shadow:0 2px 8px rgba(0,0,0,.3);letter-spacing:clamp(1px,1vw,3px)}.sudoku-completion-buttons{display:flex;flex-direction:column;gap:clamp(.5rem,2.5vw,1rem);margin-top:clamp(.75rem,4vw,1.5rem);justify-content:center;width:100%}.sudoku-share-button{display:flex;align-items:center;justify-content:center;gap:clamp(.25rem,1.5vw,.5rem);padding:clamp(.75rem,3vw,1rem) clamp(1rem,5vw,2rem);font-size:clamp(.875rem,3.5vw,1.1rem);font-weight:700;background:#fff3;color:#fff;border:2px solid rgba(255,255,255,.4);border-radius:clamp(8px,2vw,12px);cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #0003;text-transform:uppercase;letter-spacing:1px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);width:100%;box-sizing:border-box}.sudoku-share-button:hover{transform:translateY(-2px);background:#ffffff4d;border-color:#fff9;box-shadow:0 6px 25px #0000004d}.sudoku-share-button:active{transform:translateY(0)}.sudoku-share-icon{width:clamp(16px,4vw,20px);height:clamp(16px,4vw,20px);fill:currentColor}.sudoku-completion-button,.sudoku-leaderboard-button-completion{padding:clamp(.75rem,3vw,1rem) clamp(1rem,5vw,2rem);font-size:clamp(.875rem,3.5vw,1.1rem);font-weight:700;background:#fff;color:#667eea;border:none;border-radius:clamp(8px,2vw,12px);cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #0003;text-transform:uppercase;letter-spacing:1px;width:100%;box-sizing:border-box}.sudoku-completion-button:hover{transform:translateY(-2px);box-shadow:0 6px 25px #0000004d;background:#f0f0f0}.sudoku-completion-button:active{transform:translateY(0)}.sudoku-board-wrapper{display:flex;flex-direction:column;justify-content:flex-start;align-items:center;width:100%;max-width:100%;padding:clamp(.5rem,2vw,1rem);margin:0 auto;flex-shrink:0}.sudoku-grid-container{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;width:100%;max-width:600px;margin:0 auto}.sudoku-number-strip{position:absolute;bottom:clamp(-70px,-18vw,-80px);left:50%;transform:translate(-50%);display:flex;gap:clamp(.25rem,1vw,.5rem);background:#fff;border:2px solid #667eea;border-radius:clamp(8px,2vw,12px);padding:clamp(.375rem,1.5vw,.5rem);box-shadow:0 4px 20px #0000004d;z-index:100;min-width:clamp(280px,75vw,360px);max-width:calc(100% - 20px);width:fit-content;justify-content:center;align-items:center;flex-wrap:nowrap;animation:slideUp .2s ease-out;margin-top:clamp(.75rem,2vw,1rem)}@keyframes slideUp{0%{opacity:0;transform:translate(-50%) translateY(10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.sudoku-number-strip-button{flex:1;min-width:clamp(28px,7vw,36px);height:clamp(40px,10vw,52px);font-size:clamp(.875rem,3.5vw,1.125rem);font-weight:600;background:#fff;color:#333;border:2px solid #e0e0e0;border-radius:clamp(6px,1.5vw,8px);cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;padding:0;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.sudoku-number-strip-button:hover{background:#f0f0f0;border-color:#667eea;transform:translateY(-2px);box-shadow:0 2px 8px #667eea4d}.sudoku-number-strip-button:active{transform:translateY(0);background:#e0e0e0}.sudoku-number-strip-clear{background:#f44;color:#fff;border-color:#f44;font-size:clamp(1rem,4vw,1.25rem);font-weight:700}.sudoku-number-strip-clear:hover{background:#c00;border-color:#c00;color:#fff}.sudoku-grid{display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr);width:min(95vw,calc(100vh - 180px),600px);height:min(95vw,calc(100vh - 180px),600px);max-width:600px;max-height:600px;background:#fff;border:3px solid #333;box-shadow:0 4px 20px #0003;aspect-ratio:1;flex-shrink:0}.sudoku-top-buttons-left{position:absolute;top:clamp(-50px,-13vw,-55px);left:0;display:flex;align-items:center;gap:clamp(.5rem,2vw,.75rem);z-index:10}.sudoku-home-button{width:clamp(36px,9vw,44px);height:clamp(36px,9vw,44px);background:#fff;color:#333;border:3px solid #333;border-bottom:none;border-radius:8px 8px 0 0;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 2px 8px #0003;position:relative;margin-bottom:-3px}.sudoku-home-button:hover{background:#f0f0f0;border-color:#667eea;box-shadow:0 4px 12px #667eea4d;transform:translateY(-2px)}.sudoku-home-button:active{transform:translateY(0);background:#e0e0e0}.sudoku-home-icon{width:clamp(18px,4.5vw,22px);height:clamp(18px,4.5vw,22px);stroke:currentColor;fill:none}.sudoku-top-buttons-right{position:absolute;top:clamp(-50px,-13vw,-55px);right:0;display:flex;align-items:center;gap:clamp(.5rem,2vw,.75rem);z-index:10}.sudoku-refresh-button{width:clamp(36px,9vw,44px);height:clamp(36px,9vw,44px);background:#fff;color:#333;border:3px solid #333;border-bottom:none;border-radius:8px 8px 0 0;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 2px 8px #0003;position:relative;margin-bottom:-3px}.sudoku-refresh-button:hover{transform:rotate(180deg);background:#f0f0f0;border-color:#667eea;box-shadow:0 4px 12px #667eea4d}.sudoku-refresh-button:active{transform:rotate(180deg) scale(.95);background:#e0e0e0}.sudoku-refresh-icon{width:20px;height:20px;stroke:currentColor;fill:none}.sudoku-help-button{width:clamp(36px,9vw,44px);height:clamp(36px,9vw,44px);background:#fff;color:#333;border:3px solid #333;border-bottom:none;border-radius:8px 8px 0 0;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 2px 8px #0003;position:relative;margin-bottom:-3px;font-size:clamp(1.25rem,5vw,1.5rem);font-weight:700}.sudoku-help-button:hover{background:#f0f0f0;border-color:#667eea;box-shadow:0 4px 12px #667eea4d;transform:scale(1.1)}.sudoku-help-button:active{transform:scale(1.05);background:#e0e0e0}.sudoku-leaderboard-icon-button{width:clamp(36px,9vw,44px);height:clamp(36px,9vw,44px);background:#fff;color:#333;border:3px solid #333;border-bottom:none;border-radius:8px 8px 0 0;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 2px 8px #0003;position:relative;margin-bottom:-3px;padding:0}.sudoku-leaderboard-icon-button:hover{background:#f0f0f0;border-color:#667eea;box-shadow:0 4px 12px #667eea4d;transform:scale(1.05)}.sudoku-leaderboard-icon-button:active{transform:scale(1.02);background:#e0e0e0}.sudoku-leaderboard-icon{width:clamp(18px,5vw,22px);height:clamp(18px,5vw,22px);stroke:currentColor;fill:currentColor}.sudoku-login-prompt-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;height:100dvh;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:clamp(.5rem,3vw,1rem);box-sizing:border-box}.sudoku-login-prompt-content{background:#fff;border-radius:clamp(12px,3vw,16px);box-shadow:0 8px 30px #0000004d;max-width:min(90vw,450px);width:100%;animation:slideDown .3s ease-out}.sudoku-login-prompt-header{display:flex;justify-content:space-between;align-items:center;padding:clamp(1rem,3vw,1.5rem);border-bottom:2px solid #e0e0e0}.sudoku-login-prompt-header h2{margin:0;font-size:clamp(1.25rem,4vw,1.5rem);font-weight:700;color:#333}.sudoku-login-prompt-close{background:transparent;border:none;color:#666;font-size:clamp(1.5rem,6vw,2rem);cursor:pointer;padding:0;width:clamp(32px,8vw,40px);height:clamp(32px,8vw,40px);display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s ease;line-height:1}.sudoku-login-prompt-close:hover{background:#f0f0f0;color:#333}.sudoku-login-prompt-body{padding:clamp(1rem,3vw,1.5rem);text-align:center}.sudoku-login-prompt-body p{margin:0 0 clamp(1.5rem,4vw,2rem) 0;font-size:clamp(.9375rem,3vw,1.125rem);color:#555;line-height:1.6}.sudoku-login-prompt-button{width:100%;padding:clamp(.875rem,3vw,1rem);font-size:clamp(.9375rem,3.5vw,1.125rem);font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:clamp(8px,2vw,12px);cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d}.sudoku-login-prompt-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.sudoku-login-prompt-button:active:not(:disabled){transform:translateY(0)}.sudoku-login-prompt-button:disabled{opacity:.6;cursor:not-allowed}.sudoku-help-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;height:100dvh;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:clamp(.5rem,3vw,1rem);box-sizing:border-box;overflow-y:auto;-webkit-overflow-scrolling:touch}.sudoku-help-content{background:#fff;border-radius:clamp(12px,3vw,16px);box-shadow:0 8px 30px #0000004d;max-width:min(90vw,600px);width:100%;max-height:calc(100dvh - 2rem);overflow-y:auto;animation:slideDown .3s ease-out}.sudoku-help-header{display:flex;justify-content:space-between;align-items:center;padding:clamp(1rem,3vw,1.5rem);border-bottom:2px solid #e0e0e0;position:sticky;top:0;background:#fff;z-index:1;border-radius:clamp(12px,3vw,16px) clamp(12px,3vw,16px) 0 0}.sudoku-help-header h2{margin:0;font-size:clamp(1.25rem,4vw,1.75rem);font-weight:700;color:#333}.sudoku-help-close{background:transparent;border:none;color:#666;font-size:clamp(1.5rem,6vw,2rem);cursor:pointer;padding:0;width:clamp(32px,8vw,40px);height:clamp(32px,8vw,40px);display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s ease;line-height:1}.sudoku-help-close:hover{background:#f0f0f0;color:#333}.sudoku-help-body{padding:clamp(1rem,3vw,1.5rem)}.sudoku-help-section{margin-bottom:clamp(1.25rem,4vw,1.75rem)}.sudoku-help-section:last-of-type{margin-bottom:clamp(1rem,3vw,1.25rem)}.sudoku-help-section h3{margin:0 0 clamp(.5rem,2vw,.75rem) 0;font-size:clamp(1rem,3.5vw,1.25rem);font-weight:700;color:#667eea}.sudoku-help-section p{margin:0 0 clamp(.75rem,2vw,1rem) 0;line-height:1.6;font-size:clamp(.875rem,3vw,1rem);color:#555}.sudoku-help-section ol,.sudoku-help-section ul{margin:0;padding-left:clamp(1.25rem,4vw,1.5rem);line-height:1.8}.sudoku-help-section li{margin-bottom:clamp(.5rem,2vw,.75rem);font-size:clamp(.875rem,3vw,1rem);color:#555}.sudoku-help-section li strong{color:#333;font-weight:600}.sudoku-help-button-primary{width:100%;padding:clamp(.75rem,3vw,1rem);font-size:clamp(.9375rem,3.5vw,1.125rem);font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:clamp(8px,2vw,12px);cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d;margin-top:clamp(.5rem,2vw,1rem)}.sudoku-help-button-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.sudoku-help-button-primary:active{transform:translateY(0)}.sudoku-leaderboard-button{display:flex;align-items:center;gap:.5rem;padding:.625rem 1rem;background:#fff;color:#667eea;border:2px solid #667eea;border-radius:20px;cursor:pointer;font-size:.875rem;font-weight:600;transition:all .3s ease;box-shadow:0 4px 12px #00000026}.sudoku-leaderboard-button:hover{background:#667eea;color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px #0003}.sudoku-leaderboard-button:active{transform:translateY(0)}.sudoku-leaderboard-icon{width:18px;height:18px;stroke:currentColor;fill:currentColor}.sudoku-leaderboard-button-text{white-space:nowrap}.sudoku-leaderboard-overlay{position:fixed;top:0;left:0;right:0;bottom:0;width:100vw;height:100vh;height:100dvh;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:9999;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:clamp(.5rem,3vw,1rem);box-sizing:border-box;overflow-y:auto;-webkit-overflow-scrolling:touch}.sudoku-leaderboard-container{width:100%;max-width:min(90vw,600px);max-height:calc(100dvh - 2rem);margin:auto;display:flex;flex-direction:column}.sudoku-row{display:contents}.sudoku-cell{display:flex;align-items:center;justify-content:center;background:#fff;border-right:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;cursor:pointer;-webkit-user-select:none;user-select:none;position:relative;aspect-ratio:1}.sudoku-cell.thick-right{border-right:3px solid #000}.sudoku-cell.thick-bottom{border-bottom:3px solid #000}.sudoku-cell:last-child{border-right:none}.sudoku-row:last-child .sudoku-cell{border-bottom:none}.sudoku-cell.given{background-color:#f5f5f5}.sudoku-cell.highlighted{background-color:#e3f2fd}.sudoku-cell.given.highlighted{background-color:#bbdefb}.sudoku-cell.selected{background-color:#e0e0e0!important;animation:blinkBorder 1s ease-in-out infinite}.sudoku-cell.given.selected{background-color:#d5d5d5!important;animation:blinkBorder 1s ease-in-out infinite}@keyframes blinkBorder{0%,to{box-shadow:inset 0 0 0 3px #667eea,0 0 #667eea00}50%{box-shadow:inset 0 0 0 3px #667eea4d,0 0 0 2px #667eea80}}.sudoku-cell.conflict{background-color:#ffe0e0}.sudoku-cell.conflict.selected{background-color:#fcc;animation:blinkBorder 1s ease-in-out infinite}.sudoku-cell.given.conflict{background-color:#ffd5d5}.sudoku-number{font-size:clamp(1.2rem,4vw,2rem);font-weight:600;color:#000;line-height:1}.sudoku-number.given{font-weight:700;color:#000}.sudoku-number.user{font-weight:400;color:#333}.sudoku-cell.conflict .sudoku-number{color:#d32f2f}.sudoku-number-pad{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem;width:100%;max-width:400px;margin-top:1.5rem;padding:0 1rem}.sudoku-number-button{padding:clamp(.75rem,3vw,1rem);font-size:clamp(1rem,4vw,1.5rem);font-weight:600;background:#fff;color:#333;border:2px solid #e0e0e0;border-radius:8px;cursor:pointer;transition:all .2s ease;min-height:clamp(40px,10vw,60px)}.sudoku-number-button:hover{background:#f0f0f0;border-color:#667eea;transform:translateY(-1px)}.sudoku-number-button:active{transform:translateY(0);background:#e0e0e0}.sudoku-clear-button{grid-column:span 2;background:#f0f0f0;color:#666}.sudoku-clear-button:hover{background:#e0e0e0;border-color:#999}@media (min-width: 769px){.sudoku-grid-container{max-width:600px}.sudoku-top-buttons-left{left:0}.sudoku-top-buttons-right{right:0}}@media (max-width: 768px){.sudoku-grid-container{max-width:100%}.sudoku-grid{width:min(95vw,calc(100vh - 200px));height:min(95vw,calc(100vh - 200px))}.sudoku-number{font-size:clamp(1rem,5vw,1.5rem)}.sudoku-top-buttons-left{left:clamp(.5rem,2vw,1rem)}.sudoku-top-buttons-right{right:clamp(.5rem,2vw,1rem)}}@media (max-width: 480px){.sudoku-container{padding:clamp(.25rem,1.5vw,.5rem)}.sudoku-timer-container{margin-bottom:clamp(.25rem,1.5vw,.5rem)}.sudoku-grid{width:min(98vw,calc(100vh - 220px));height:min(98vw,calc(100vh - 220px))}.sudoku-top-buttons-left,.sudoku-top-buttons-right{top:clamp(-45px,-12vw,-50px)}.sudoku-number-strip{bottom:clamp(-75px,-20vw,-85px);min-width:clamp(260px,85vw,340px)}.sudoku-number-pad{grid-template-columns:repeat(3,1fr);max-width:90%}.sudoku-clear-button{grid-column:span 3}}@media (orientation: portrait) and (max-height: 800px){.sudoku-grid{width:min(92vw,calc(100vh - 180px));height:min(92vw,calc(100vh - 180px))}.sudoku-timer-container{margin-bottom:clamp(.25rem,1vw,.5rem)}.sudoku-top-buttons-left,.sudoku-top-buttons-right{top:clamp(-40px,-10vw,-45px)}.sudoku-number{font-size:clamp(.875rem,4vw,1.25rem)}}.login-prompt-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:10000;padding:1rem;animation:fadeIn .2s ease-out}.login-prompt-modal{background:#1a1f29;border-radius:24px;padding:2rem;max-width:420px;width:100%;box-shadow:0 20px 60px #00000080;animation:slideUp .3s ease-out;border:3px solid rgba(77,208,225,.4)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.login-prompt-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.login-prompt-header h2{margin:0;color:#4dd0e1;font-size:1.5rem;font-weight:700}.login-prompt-close{background:none;border:none;font-size:2rem;color:#4dd0e1;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.login-prompt-close:hover{background:#4dd0e11a;transform:rotate(90deg)}.login-prompt-body{text-align:center;margin-bottom:2rem}.login-prompt-icon{font-size:4rem;margin-bottom:1rem;animation:bounce 1s infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.login-prompt-message{color:#cbd5e0;font-size:1rem;line-height:1.6;margin-bottom:1.5rem}.login-prompt-benefits{display:flex;flex-direction:column;gap:.75rem;margin-top:1.5rem}.benefit-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:#252a35cc;border-radius:12px;color:#cbd5e0;font-size:.9rem}.benefit-icon{font-size:1.5rem;flex-shrink:0}.login-prompt-actions{display:flex;flex-direction:column;gap:.75rem}.login-prompt-button{padding:.875rem 1.5rem;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit}.login-prompt-button.primary{background:linear-gradient(135deg,#4dd0e1,#26c6da);color:#fff;box-shadow:0 4px 12px #4dd0e14d}.login-prompt-button.primary:hover{transform:translateY(-2px);box-shadow:0 6px 16px #4dd0e166}.login-prompt-button.primary:active{transform:translateY(0)}.login-prompt-button.secondary{background:#252a35;color:#4dd0e1;border:2px solid rgba(77,208,225,.4)}.login-prompt-button.secondary:hover{background:#2a2f3a;border-color:#4dd0e1}@media (max-width: 480px){.login-prompt-modal{padding:1.5rem;margin:1rem}.login-prompt-header h2{font-size:1.25rem}.login-prompt-icon{font-size:3rem}}.level-complete-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.level-complete-modal{background:#1a1f29;border-radius:20px;padding:2rem;max-width:400px;width:90%;box-shadow:0 8px 32px #00000080;animation:slideUp .3s ease;border:3px solid rgba(77,208,225,.4)}.modal-header{text-align:center;margin-bottom:1.5rem}.modal-header h2{font-size:2rem;margin:0 0 .5rem;color:#e2e8f0;background:linear-gradient(135deg,#4dd0e1,#26c6da,#00bcd4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.completion-message{font-size:1.1rem;color:#cbd5e0;font-weight:500}.modal-content{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.time-display{text-align:center}.time-label{font-size:.9rem;color:#cbd5e0;margin-bottom:.5rem;text-transform:uppercase;letter-spacing:1px}.time-value{font-size:2.5rem;font-weight:700;color:#4dd0e1;font-variant-numeric:tabular-nums}.stars-display{display:flex;gap:.5rem;align-items:center;justify-content:center}.star{font-size:3rem;transition:all .3s ease;display:inline-block}.star.filled{animation:starPop .5s ease;filter:drop-shadow(0 2px 4px rgba(249,168,37,.5))}.star.empty{opacity:.2;filter:grayscale(100%)}@keyframes 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