:root{--primary-pastel: #B8E1FF;--secondary-pastel: #FFD1DC;--accent-pastel: #CAFFBF;--bg-pastel: #FDFCF0;--text-dark: #2D3436;--text-muted: #636E72;--card-bg: rgba(255, 255, 255, .8);--glass-bg: rgba(255, 255, 255, .4);--glass-border: rgba(255, 255, 255, .2);--shadow-soft: 0 8px 32px 0 rgba(31, 38, 135, .1);--font-family: "Montserrat", sans-serif}*{box-sizing:border-box}body{margin:0;padding:0;font-family:var(--font-family);background:linear-gradient(135deg,#fdfcf0,#e0f2f1);color:var(--text-dark)}h1,h2,h3,h4,h5,h6{font-weight:700;color:var(--text-dark)}.game-container{padding:2rem;max-width:1000px;margin:0 auto;height:100dvh;display:flex;flex-direction:column;overflow:hidden;outline:none}.game-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;z-index:999}.game-content{display:grid;grid-template-columns:280px 1fr;gap:3rem}.board-wrapper{display:flex;flex-direction:column;align-items:center;gap:2rem;width:100%}.glass-card{background:var(--glass-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--glass-border);border-radius:16px;box-shadow:var(--shadow-soft)}.material-symbols-outlined{font-variation-settings:"FILL" 0,"wght" 400,"GRAD" 0,"opsz" 48}.btn-back{background:none;border:none;cursor:pointer;color:var(--text-dark);padding:0}.btn-primary{background:var(--text-dark);color:#fff;padding:1rem;border:none;border-radius:12px;font-weight:700;cursor:pointer;font-size:1rem;transition:transform .2s}.btn-primary:active{transform:scale(.98)}.btn-secondary{background:#fff;color:var(--text-dark);padding:.8rem;border:1px solid rgba(0,0,0,.1);border-radius:12px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s;margin-top:.5rem}.btn-secondary:hover{background:#f5f5f5;border-color:var(--secondary-pastel)}.btn-close{background:none;border:none;cursor:pointer;color:var(--text-muted)}.game-actions{display:flex;justify-content:space-around;padding-top:1rem;border-top:1px solid rgba(0,0,0,.05)}.action-btn{background:none;border:none;color:#999;display:flex;flex-direction:column;align-items:center;gap:.3rem;font-size:.8rem;font-weight:600;cursor:pointer;transition:color .2s}.action-btn .material-symbols-outlined{font-size:24px}.action-btn:hover:not(:disabled),.action-btn.active{color:var(--text-dark)}.action-btn:disabled{opacity:.3;cursor:not-allowed}.mobile-menu-btn{display:none}.timer{display:flex;align-items:center;gap:.5rem;font-weight:600;font-size:1.2rem;background:var(--glass-bg);padding:.5rem 1rem;border-radius:50px;transition:all .3s}.timer.stopped{background:var(--accent-pastel);color:#2e7d32}.controls{padding:1.5rem;display:flex;flex-direction:column;gap:.3rem;height:fit-content;transition:all .3s}.settings-panel{display:flex;flex-direction:column;gap:1rem;overflow:hidden;max-height:500px;opacity:1;transition:max-height .3s ease-out,opacity .3s}.setting-group{display:flex;flex-direction:column;gap:.5rem}.setting-group label{font-size:.85rem;font-weight:600;color:var(--text-muted);padding-left:.2rem}.difficulty-selector{display:flex;gap:.5rem}.difficulty-selector button{flex:1;padding:.6rem;border:none;border-radius:8px;background:#fff;cursor:pointer;transition:all .2s;font-weight:500}.difficulty-selector button.active{background:var(--primary-pastel);font-weight:700;color:#0056b3}.premium-select{appearance:none;background:#fff;border:1px solid rgba(0,0,0,.05);border-radius:12px;padding:.8rem 1rem;font-size:.95rem;font-weight:600;color:var(--text-dark);cursor:pointer;transition:all .2s;box-shadow:var(--shadow-soft);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24'%3E%3Cpath d='M480-345 240-585l56-56 184 184 184-184 56 56-240 240Z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .8rem center;background-size:1.2rem}.premium-select:hover{border-color:var(--accent-pastel);background-color:#fafafa}.premium-select:focus{outline:none;border-color:var(--text-dark);box-shadow:0 0 0 3px #0000000d}.hint-box{background:#fff9c4;border-radius:8px;font-size:.9rem;border-left:4px solid #fbc02d;opacity:0;visibility:hidden;max-height:0;padding:0;margin:0;overflow:hidden;transition:all .3s ease}.hint-box.visible{opacity:1;visibility:visible;max-height:200px;padding:1rem;margin-top:1rem}.rules-overlay{position:fixed;inset:0;background:#00000080;backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s;padding:1rem}.rules-modal{background:#fff;border-radius:24px;padding:2rem;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;box-shadow:0 10px 30px #0003;position:relative;scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.2) transparent;z-index:1000}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;position:sticky;top:-2rem;background:#fff;z-index:10;padding-top:.5rem;padding-bottom:.5rem;margin-top:-.5rem;z-index:1000}.modal-header h3{margin:0;font-size:1.5rem}.btn-close{background:#f5f5f5;border:none;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.btn-close:hover{background:#ff5252;color:#fff;transform:rotate(90deg)}.rules-section{margin-bottom:1.2rem}.rules-section h4{font-size:.95rem;margin-bottom:.5rem;border-bottom:1px solid rgba(0,0,0,.05);padding-bottom:4px}.rules-section p,.rules-section ul{font-size:.9rem;color:var(--text-muted);line-height:1.5}.rules-section ul{padding-left:1.4rem}.rules-note{background:#e8f5e9;padding:1rem;border-radius:12px;border-left:4px solid #4caf50;font-size:.9rem;color:#2e7d32;margin-top:1rem}.win-modal{position:fixed;inset:0;background:#0006;backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .4s}.modal-content{padding:3.5rem;display:flex;flex-direction:column;align-items:center;gap:1.5rem;text-align:center;border:1px solid rgba(255,255,255,.8);background:#fffffff2!important;box-shadow:0 20px 50px #0003!important;border-radius:24px}.modal-content h2{margin:0;font-size:2.2rem;font-weight:800}.icon-win{font-size:5rem;color:#fbc02d;filter:drop-shadow(0 0 10px rgba(251,192,45,.4))}.btn-restart{background:var(--text-dark);color:#fff;border:none;border-radius:50px;padding:1.2rem 2.5rem;font-size:1.1rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.175,.885,.32,1.275);box-shadow:0 10px 20px #00000026}.btn-restart:hover{transform:scale(1.05) translateY(-2px);box-shadow:0 15px 30px #0003;background:#000}.btn-restart:active{transform:scale(.98)}.seo-content{background:#fdfdfd;padding:3rem 1rem;border-top:1px solid #eee;margin-top:4rem}.content-wrapper{max-width:800px;margin:0 auto;color:var(--text-dark);line-height:1.6}.content-wrapper h2{font-size:1.8rem;margin-bottom:1rem;color:#2d3436}.content-wrapper h3{font-size:1.4rem;margin-top:1.5rem;margin-bottom:.8rem}.content-wrapper ul{padding-left:1.5rem;margin-bottom:1.5rem}.content-wrapper li{margin-bottom:.5rem}details{margin-bottom:1rem;padding:.5rem;background:#fff;border:1px solid #eee;border-radius:8px}summary{font-weight:600;cursor:pointer;outline:none}details p{margin-top:.5rem;color:#666}@keyframes fadeInModal{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes popIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}@keyframes pulseHint{0%{box-shadow:inset 0 0 #fbc02d}50%{box-shadow:inset 0 0 0 6px #fbc02d}to{box-shadow:inset 0 0 #fbc02d}}.home-container{padding:2rem;width:100%;max-width:100%;margin:0 auto;position:relative;display:flex;flex-direction:column;height:100dvh;box-sizing:border-box;overflow:hidden}.home-ad-container{margin-top:auto;width:100%;height:18vh;display:flex;justify-content:center;align-items:center;flex-shrink:0;overflow:hidden}.game-ad-container{width:100%;display:flex;justify-content:center;align-items:center;margin-bottom:.5rem;min-height:100px}.lang-selector{position:absolute;top:1rem;right:2rem;display:flex;gap:.5rem;align-items:center;background:var(--glass-bg);padding:.5rem 1rem;border-radius:50px;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);z-index:100}.lang-selector button{background:none;border:none;color:var(--text-muted);cursor:pointer;font-weight:600;font-size:.9rem;transition:all .2s}.lang-selector button.active{color:var(--text-dark);transform:scale(1.1)}.lang-selector span{color:#0000001a}.hero{text-align:center;margin-bottom:4rem;animation:fadeInDown .8s ease-out}.hero h1{font-size:clamp(2.5rem,5vw,3.5rem);margin-bottom:.5rem;background:linear-gradient(45deg,var(--text-dark),var(--text-muted));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.header-content{display:flex;align-items:center;justify-content:center;gap:1.5rem;margin-bottom:.5rem}.header-content h1{margin:0;line-height:1}.brand-logo{width:100px;height:auto;border-radius:20px;filter:drop-shadow(0 8px 16px rgba(184,225,255,.4));transition:transform .3s ease;margin-bottom:0}.brand-logo:hover{transform:scale(1.05) rotate(-2deg)}.game-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}.game-card{padding:2.5rem;display:flex;flex-direction:column;align-items:center;text-align:center;cursor:pointer;transition:transform .3s cubic-bezier(.175,.885,.32,1.275),box-shadow .3s ease;background:#fffc;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.5);border-radius:20px;box-shadow:0 1rem 1rem #1f26871a}.game-card:hover{transform:translateY(-10px);box-shadow:0 1rem 1rem #00000014}.icon-wrapper{width:80px;height:80px;border-radius:20px;display:flex;align-items:center;justify-content:center;margin-bottom:.5rem}.icon-wrapper .material-symbols-outlined{font-size:40px}.icon-wrapper.sudoku{background-color:var(--primary-pastel);color:#0081cf}.icon-wrapper.queens{background-color:var(--secondary-pastel);color:#e91e63}.icon-wrapper.tango{background-color:var(--accent-pastel);color:#2e7d32}.btn-start{padding:.8rem 2rem;border:none;border-radius:50px;background:#fff;color:var(--text-dark);font-weight:600;box-shadow:0 4px 15px #0000000d;transition:all .2s ease}.game-card:hover .btn-start{background:var(--text-dark);color:#fff}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.tango-board-container{width:100%;display:flex;justify-content:center}.tango-game-board{background:#333;padding:3px;gap:3px;display:grid;border-radius:12px;position:relative;border:3px solid #333;width:100%;max-width:500px;max-height:500px;aspect-ratio:1;margin:0 auto}.tango-cell{width:100%;height:100%;background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:background .2s;-webkit-user-select:none;user-select:none;aspect-ratio:1}.tango-cell.initial{background:#f0f0f0}.tango-cell.hinted{background:#fff9c4;animation:pulseHint 1.5s infinite}.tango-cell.error{box-shadow:inset 0 0 0 4px #ff5252;z-index:2}.constraint{position:absolute;z-index:5;display:flex;align-items:center;justify-content:center;pointer-events:none}.constraint.horizontal{right:-6px;top:0;bottom:0;width:6px;height:100%}.constraint.vertical{bottom:-6px;left:0;right:0;height:6px;width:100%}.sign{background:#333;color:#fff;border-radius:4px;padding:1px 4px;font-size:14px;font-weight:800;line-height:1}.sign.diff{color:#ffab91}.icon-sun{color:#fbc02d;font-size:clamp(20px,5vw,32px)}.icon-moon{color:#5c6bc0;font-size:clamp(18px,4.5vw,28px)}.sudoku-board-outer{border:3px solid #666;border-radius:4px;overflow:hidden;box-shadow:0 10px 30px #0000000d;width:100%;max-width:500px;max-height:500px;aspect-ratio:1}.sudoku-board{display:grid;background:#fff;gap:0;width:100%;height:100%}.sudoku-row{display:contents}.sudoku-cell{width:100%;height:100%;background:#fff;display:flex;align-items:center;justify-content:center;font-size:clamp(1.2rem,5vw,1.8rem);font-weight:500;cursor:pointer;transition:background .1s;color:#5c6bc0;-webkit-user-select:none;user-select:none;border-right:.5px solid rgba(0,0,0,.1);border-bottom:.5px solid rgba(0,0,0,.1);box-sizing:border-box;position:relative}.sudoku-cell:hover{background:#f0f4ff}.sudoku-cell.initial{color:#2d3436;font-weight:700}.sudoku-cell.selected{background:#e8eaf6;box-shadow:inset 0 0 0 3px #5c6bc0;z-index:5}.sudoku-cell.hinted{background:#fff9c4}.sudoku-cell.error{box-shadow:inset 0 0 0 4px #ff5252;z-index:4}.thick-right{border-right:3px solid #666!important}.thick-bottom{border-bottom:3px solid #666!important}.input-section{width:100%;max-width:400px;display:flex;flex-direction:column;gap:1.5rem}.num-pad-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem}.num-btn{height:60px;background:#f8f9fa;border:none;border-radius:12px;font-size:1.5rem;font-weight:600;cursor:pointer;color:#333;transition:transform .1s,background .2s}.num-btn:hover{background:#eee;transform:translateY(-2px)}.num-btn:active{transform:translateY(0)}.tool-btn{height:60px;background:#fff;border:1px solid #eee;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:.7rem;color:#666;font-weight:600;cursor:pointer;transition:all .2s}.tool-btn .material-symbols-outlined{font-size:20px;margin-bottom:2px}.tool-btn:hover:not(:disabled){background:#f8f9fa;color:var(--text-dark);border-color:#ddd}.queens-board{background:#333;padding:4px;gap:4px;display:grid;border-radius:12px;box-shadow:var(--shadow-soft);border:4px solid #333;width:100%;max-width:500px;max-height:500px;aspect-ratio:1;margin:0 auto}.queens-row{display:contents}.queens-cell{width:100%;height:100%;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:all .2s;border-radius:4px;-webkit-user-select:none;user-select:none;aspect-ratio:1}.queens-cell:hover{filter:brightness(.85);box-shadow:inset 0 0 10px #0000001a;z-index:1}.queens-cell.error{box-shadow:inset 0 0 0 4px #ff5252;z-index:2}.queens-cell.hinted{animation:pulseHint 1s infinite}.icon-queen{font-size:clamp(24px,6vw,34px);color:#2d3436;pointer-events:none;animation:popIn .3s cubic-bezier(.175,.885,.32,1.275)}.icon-mark{font-size:clamp(20px,5vw,24px);color:#000;font-weight:700;pointer-events:none}@media (max-width: 768px){html,body{overflow:hidden!important;height:100%!important;width:100%!important;overscroll-behavior:none;position:fixed}.home-container{padding:1rem;height:100dvh;display:flex;flex-direction:column;overflow:hidden}.hero{margin-bottom:1.5rem;flex-shrink:0}.game-grid{grid-template-columns:1fr;gap:1rem;flex:1;overflow-y:auto;align-content:start;padding-bottom:.5rem}.game-card{padding:1rem;flex-direction:row;gap:1rem;text-align:left;align-items:center;box-shadow:0 .2rem .2rem #1f26871a}.icon-wrapper{width:50px;height:50px;margin-bottom:0}.icon-wrapper .material-symbols-outlined{font-size:28px}.game-card h2{margin:0;font-size:1.2rem}.game-card p{display:none}.btn-start{padding:.5rem 1rem;font-size:.9rem;margin-left:auto}.game-container{height:100dvh;width:100%;padding:0;display:flex;flex-direction:column;overflow:hidden;position:relative}.game-ad-container{min-height:auto;margin-bottom:0;padding-top:.5rem}.game-header{padding:.5rem 1rem;width:100%;box-sizing:border-box;z-index:5;background:#fffc;margin-bottom:0;z-index:999}.game-header h1{font-size:1.1rem;margin:0}.timer{font-size:.9rem;padding:.2rem .6rem}.game-content{position:relative;flex:1;width:100%;display:flex;flex-direction:column;padding:0;z-index:1;overflow:hidden}.board-wrapper{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding-bottom:80px;width:100%;box-sizing:border-box}.tango-game-board,.queens-board,.sudoku-board-outer{width:90vw;height:90vw;max-width:55vh;max-height:55vh;aspect-ratio:1;margin:0 auto;border-radius:0}.sudoku-board-outer{height:80vw}.input-section{width:94%;max-width:400px;gap:.5rem;margin-top:1 rem}.num-pad-grid{gap:.5rem}.num-btn{height:42px;font-size:1.1rem;width:100%}.tool-btn{height:42px;font-size:.85rem;width:100%}.controls{position:absolute;bottom:0;left:0;width:100%;z-index:20;background:#fff;border-radius:20px 20px 0 0;box-shadow:0 -4px 20px #00000026;padding:0;max-height:80vh;display:flex;flex-direction:column}.settings-panel{max-height:0;opacity:0;padding:0;margin:0;overflow-y:hidden;transition:all .3s ease}.settings-panel.expanded{max-height:80vh;opacity:1;padding:1.5rem;overflow-y:auto}.game-actions{padding:.8rem;background:transparent;width:100%;box-sizing:border-box;z-index:22;border-top:none}.action-btn{font-size:.7rem;gap:.1rem}.action-btn .material-symbols-outlined{font-size:22px}.mobile-menu-btn{display:flex}.constraint.horizontal{right:-3px;width:6px}.constraint.vertical{bottom:-3px;height:6px}.hint-box{position:absolute;bottom:100%;left:0;right:0;width:90%;margin:0 auto 10px;z-index:30;box-shadow:0 4px 15px #0003;max-height:30vh;overflow-y:auto;transform:translate(120%);opacity:0;visibility:hidden;transition:transform .4s,opacity .3s;pointer-events:none;.ad-container{margin:0}}.hint-box.visible{transform:translate(0);opacity:1;visibility:visible;pointer-events:auto}}