:root{--bg:#ededed;--card:#fff;--text:#181818;--text-secondary:#888888;--accent:#d3d3d3;--accent-subtle:#e0e0e0;--accent-color:#3498db;--button:#f5f5f5;--primary-color:#2c3e50;--primary-dark:#1a252f;--secondary-color:#3498db;--background-color:#f5f6fa;--background-secondary:#f8f9fa;--text-color:#2c3e50;--border-radius:8px;--pill-bg:#F2F2F2;--pill-bg-secondary:#e0e0e0;--pill-text:#262626;--sudoku-bg:#fafafa;--sudoku-border:#232324;--sudoku-cell-text:#444444;--number-pad-bg:#fff;--icon-filter:none;--icon-filter-hover:invert(1);--card-bg:#fff;--border-color:#e0e0e0}[data-theme="dark"]{--bg:#181818;--card:#232323;--text:#fff;--text-secondary:#b0b0b0;--accent:#3a3a3a;--accent-subtle:#444444;--accent-color:#bb86fc;--button:#2a2a2a;--primary-color:#8ab4f8;--primary-dark:#6b8cc7;--secondary-color:#bb86fc;--background-color:#181818;--background-secondary:#2a2a2a;--text-color:#fff;--pill-bg:#333333;--pill-bg-secondary:#444444;--pill-text:#D9D9D9;--sudoku-bg:#232324;--sudoku-border:#f5f5f5;--sudoku-cell-text:#bdbdbd;--number-pad-bg:#181818;--card-bg:#232323;--border-color:#444444}body,header{background:#ededed}header,nav{box-shadow:none}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--text);background:var(--bg)}header{position:sticky;top:0;z-index:1000}nav{background:#ededed;max-width:1200px;margin:0 auto;padding:1rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:bold;color:var(--primary-color)}.logo-img{border-radius:var(--border-radius) !important}.language-picker{position:relative;display:inline-block;font-family:inherit}.language-picker-button{background:#fff;border:2px solid #2d7ff9;color:#2d7ff9;border-radius:8px;padding:8px 18px;font-size:1rem;cursor:pointer;display:flex;align-items:center;gap:8px;font-weight:600;transition:box-shadow 0.2s;box-shadow:0 2px 8px rgba(45,127,249,0.08)}.language-picker-button:hover{background:#f0f7ff;box-shadow:0 4px 16px rgba(45,127,249,0.12)}.language-dropdown{display:none;position:absolute;top:110%;left:0;min-width:180px;background:#fff;border:1px solid #e0e0e0;border-radius:8px;box-shadow:0 8px 24px rgba(45,127,249,0.10);z-index:1000;padding:8px 0}.language-dropdown.show{display:block}.language-dropdown a{display:flex;align-items:center;gap:10px;padding:10px 18px;color:#222;text-decoration:none;font-size:1rem;transition:background 0.15s,color 0.15s;border-radius:4px}.language-dropdown a:hover,.language-dropdown a.active{background:#eaf2ff;color:#2d7ff9;font-weight:600}.nav-links{display:flex;gap:1.2rem;justify-content:center;align-items:center;margin:1.2rem 0;flex-wrap:wrap}.nav-bubble{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:20px;text-decoration:none;color:var(--pill-text);background:var(--pill-bg);transition:all 0.3s ease;font-size:0.9em}.nav-bubble:hover{background:var(--pill-text);color:var(--pill-bg)}.nav-bubble.active{background:#fff;color:#181818;border:none}.nav-bubble.active:hover{opacity:0.9}.nav-bubble.active .nav-icon{filter:none !important}.nav-bubble:hover .nav-icon{filter:var(--icon-filter-hover)}.nav-icon{width:20px;height:20px;filter:var(--icon-filter)}[data-theme="dark"] .nav-icon{--icon-filter:invert(1)}[data-theme="dark"] .nav-bubble:hover .nav-icon,[data-theme="dark"] .nav-bubble.active .nav-icon{--icon-filter-hover:none}[data-theme="dark"] .nav-bubble.active{background:#181818;color:#fff;border:2px solid #fff}[data-theme="dark"] .nav-bubble.active .nav-icon{filter:invert(1) !important}main{max-width:1200px;margin:2rem auto;padding:0 1rem}.game-container{background:transparent;padding:2rem;border-radius:var(--border-radius);margin-bottom:2rem}.game-frame{width:100%;height:600px;margin:1rem 0;background:#fff;border-radius:48px;border:none}.game-frame iframe{width:100%;height:100%;border-radius:var(--border-radius)}.faq-container{background-color:var(--card);padding:2rem;border-radius:var(--border-radius);box-shadow:0 2px 5px rgba(0,0,0,0.1)}.faq-item{margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid #eee}.faq-item:last-child{border-bottom:none}.faq-question{font-weight:bold;color:var(--primary-color);margin-bottom:0.5rem}.faq-answer{color:var(--text-secondary)}footer{text-align:center;padding:2rem;background-color:#ededed;margin-top:2rem}[data-theme="dark"] footer{background-color:#181818 !important}.blog-post{background-color:var(--card);padding:2rem;border-radius:var(--border-radius);box-shadow:0 2px 5px rgba(0,0,0,0.1);margin-bottom:2rem}.blog-post-header{margin-bottom:2rem}.blog-post-title{font-size:2.5rem;color:var(--primary-color);margin-bottom:1rem}.blog-post-subtitle{font-size:1.5rem;color:var(--text-secondary);margin-bottom:1rem}.blog-post-meta{display:flex;gap:1.5rem;color:var(--text-secondary);font-size:0.9rem}.blog-post-introduction{font-size:1.2rem;color:var(--text);line-height:1.8;margin-bottom:2rem;padding-bottom:2rem;border-bottom:1px solid #eee}.blog-post-content{color:var(--text);line-height:1.8}.blog-post-content h1{font-size:2rem;margin:2rem 0 1rem;color:var(--primary-color)}.blog-post-content h2{font-size:1.5rem;margin:1.5rem 0 1rem;color:var(--primary-color)}.blog-post-content p{margin-bottom:1.5rem}.blog-post-content ul,.blog-post-content ol{margin:1rem 0;padding-left:2rem}.blog-post-content li{margin-bottom:0.5rem}.blog-post-content strong{color:var(--primary-color)}@media (max-width:768px){.game-frame{height:800px}main{margin:1rem auto}.game-container,.faq-container{padding:1rem}.nav-links,.nav-links.active{position:fixed;left:50%;right:auto;bottom:0;width:96vw;max-width:480px;background:#fff;flex-direction:column;align-items:center;gap:1.2rem;z-index:1000;padding:1.2rem 0.6rem 1.2rem 0.6rem;border-top-left-radius:24px;border-top-right-radius:24px;box-shadow:0 8px 32px rgba(0,0,0,0.18);margin-bottom:1.5vh;overflow-y:auto;max-height:80vh}.nav-links{display:none;opacity:0;transform:translateX(-50%) translateY(100%);transition:opacity 0.25s cubic-bezier(.4,0,.2,1),transform 0.25s cubic-bezier(.4,0,.2,1)}.nav-links.active{display:flex;opacity:1;transform:translateX(-50%) translateY(0)}.blog-post-title{font-size:2rem}.blog-post-subtitle{font-size:1.2rem}.blog-post-meta{flex-direction:column;gap:0.5rem}.language-picker-button{padding:0.4rem 0.8rem;font-size:0.8rem}.language-dropdown{min-width:130px}.language-option{padding:0.6rem 0.8rem;font-size:0.9rem}}a{color:var(--text-secondary)}button,.theme-switcher button{background:var(--button);color:var(--text);border:1px solid var(--accent);border-radius:8px;padding:6px 12px;margin:0 2px;transition:background 0.2s,color 0.2s}.theme-switcher button[aria-pressed="true"]{outline:2px solid var(--accent);font-weight:bold}.top-menu{display:flex;gap:1.5rem;background:var(--bg);padding:1.2rem 0 0.5rem 0;justify-content:center;align-items:center}.menu-item{display:flex;align-items:center;background:var(--bg);border-radius:50px;padding:0.5rem 1.5rem;min-width:60px;justify-content:center;font-weight:600;font-size:1.4rem;box-shadow:0 1px 4px rgba(0,0,0,0.03)}.menu-item .icon{display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-right:0.5rem}.menu-item .menu-number{font-size:1.3rem;color:var(--text);margin-left:0.2rem}.menu-item:not(:first-child):not(:last-child){margin-right:0.2rem}@media (max-width:768px){.top-menu{gap:0.7rem;padding:0.7rem 0 0.3rem 0}.menu-item{padding:0.3rem 0.7rem;font-size:1rem}.menu-item .icon{font-size:1.1rem}.menu-item .menu-number{font-size:1rem}}[data-theme="dark"] header,[data-theme="dark"] nav{background:#181818 !important}[data-theme="dark"] .faq-container{background-color:#232323 !important;color:#D9D9D9 !important}[dark-theme] .faq-container{background-color:#232323 !important;color:#D9D9D9 !important}[data-theme="dark"] .blog-post{background-color:var(--card) !important;color:var(--text) !important}.dark .blog-post{background-color:var(--card) !important;color:var(--text) !important}.date-display{text-align:center;margin-bottom:1.5rem}.date-day{font-size:4rem;font-weight:700;letter-spacing:-2px;line-height:1;font-family:inherit;background:linear-gradient(to bottom,#e0e0e0 60%,rgba(224,224,224,0.2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;color:transparent;transition:opacity 0.5s;opacity:1}.date-main{font-size:3.5rem;font-weight:800;color:#181818;line-height:1;font-family:inherit;transition:color 0.3s}[data-theme="dark"] .date-day{background:linear-gradient( to bottom,#fff 0%,#fff 60%,#888 80%,rgba(255,255,255,0) 100% );-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;color:transparent;opacity:1}[data-theme="dark"] .date-main{color:#fff}.sudoku-flex-container{display:flex;flex-direction:row;justify-content:center;align-items:flex-start;gap:3rem;margin-top:2.5rem}.sudoku-grid{background:transparent;border:none;border-radius:0;padding:0;min-width:340px;min-height:340px;display:flex;align-items:center;justify-content:center;box-shadow:none}.sudoku-placeholder{color:var(--sudoku-cell-text,#444444);font-size:2rem;opacity:0.7}.number-pad{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:2.5rem;background:none;min-width:160px;min-height:340px;box-shadow:none}.number-pad-grid{display:grid;grid-template-columns:repeat(3,48px);grid-template-rows:repeat(3,48px);gap:18px;margin-bottom:2.5rem}.pad-btn{width:48px;height:48px;font-size:2rem;font-weight:600;color:#232324;background:#f5f5f5;border:none;border-radius:16px;cursor:pointer;transition:background 0.2s,color 0.2s,box-shadow 0.2s;box-shadow:0 1px 4px rgba(0,0,0,0.04);outline:none;display:flex;align-items:center;justify-content:center}.pad-btn:active,.pad-btn:focus{background:#e0e0e0}.number-pad-actions{display:flex;flex-direction:row;gap:18px;margin-top:1.5rem;align-items:center;justify-content:center}.pad-action{width:56px;height:56px;border-radius:50%;background:#f5f5f5;border:none;color:#232324;font-size:1.7rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background 0.2s,color 0.2s;box-shadow:0 1px 4px rgba(0,0,0,0.04)}.pad-action:active,.pad-action:focus{background:#e0e0e0}.pad-hint{width:auto;min-width:120px;height:48px;border-radius:24px;background:#f5f5f5;color:#232324;font-size:1.2rem;font-weight:600;padding:0 24px;display:flex;align-items:center;gap:8px;box-shadow:0 1px 4px rgba(0,0,0,0.04)}.pad-hint:active,.pad-hint:focus{background:#e0e0e0}.pad-icon{font-size:1.5rem;display:flex;align-items:center;justify-content:center}[data-theme="dark"] .pad-btn,[data-theme="dark"] .pad-action,[data-theme="dark"] .pad-hint{background:#232324;color:#fff;box-shadow:0 1px 4px rgba(0,0,0,0.12)}[data-theme="dark"] .pad-btn:active,[data-theme="dark"] .pad-btn:focus,[data-theme="dark"] .pad-action:active,[data-theme="dark"] .pad-action:focus,[data-theme="dark"] .pad-hint:active,[data-theme="dark"] .pad-hint:focus{background:#444}.sudoku-board{display:flex;flex-direction:column;width:324px;height:324px;background:#fafafa;border-radius:32px;overflow:hidden;box-shadow:none;border:2.5px solid #232324}.sudoku-row{display:flex;flex:1 1 0}.sudoku-cell{width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-size:2.1rem;font-weight:700;color:#444444;background:transparent;border:1px solid #e0e0e0;box-sizing:border-box;transition:background 0.2s,color 0.2s;border-radius:0}.sudoku-row:first-child .sudoku-cell{border-top-width:2.5px}.sudoku-row:last-child .sudoku-cell{border-bottom-width:2.5px}.sudoku-cell:first-child{border-left-width:2.5px}.sudoku-cell:last-child{border-right-width:2.5px}.sudoku-cell:nth-child(3),.sudoku-cell:nth-child(6){border-right-width:2.5px}.sudoku-row:nth-child(3) .sudoku-cell,.sudoku-row:nth-child(6) .sudoku-cell{border-bottom-width:2.5px}.sudoku-board{border-radius:16px}.sudoku-cell{border-radius:0}[data-theme="dark"] .sudoku-grid{background:transparent;border:none;border-radius:0}[data-theme="dark"] .sudoku-board{background:transparent;border-radius:32px;border:2.5px solid #232323}[data-theme="dark"] .sudoku-cell{color:#bdbdbd;background:transparent;border:1px solid #fff;font-size:2.1rem;font-weight:700}.printable-container{max-width:1200px;width:100%;margin:2rem auto 2rem 0;background:none;border-radius:24px;box-shadow:none;padding:1rem}.printable-desc{font-size:1.2rem;color:var(--text-secondary);margin-bottom:2rem}.printable-controls{display:flex;flex-direction:column;gap:2rem;margin-bottom:2.5rem}.difficulty-selector{display:flex;flex-direction:column;gap:1rem}.difficulty-option{background:#f5f5f5;border-radius:18px;padding:1.1rem 1.5rem 1.1rem 1.2rem;display:flex;flex-direction:column;position:relative;box-shadow:0 1px 4px rgba(0,0,0,0.04);cursor:pointer;border:none;transition:background 0.2s,color 0.2s}.difficulty-option.selected{background:#232324;color:#fff;box-shadow:0 2px 8px rgba(0,0,0,0.10)}.difficulty-option.selected .difficulty-label,.difficulty-option.selected .difficulty-desc{color:#fff}.difficulty-option.selected .difficulty-radio{border-color:#fff;background:#232324}.difficulty-option.selected::after{content:none}.difficulty-radio{width:1.1rem;height:1.1rem;border:2px solid #bbb;border-radius:50%;display:inline-block;margin-right:0.8rem;background:#fff;vertical-align:middle}.difficulty-label{font-weight:700;font-size:1.1rem;color:#232324;display:flex;align-items:center}.difficulty-desc{font-size:0.98rem;color:#888;margin-left:1.9rem;margin-top:0.2rem}.print-options{display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap}.print-size-select{font-size:1rem;padding:0.4rem 1.2rem;border-radius:8px;border:1px solid #ccc;margin-left:0.5rem;background:#fff;color:#232324}.solutions-checkbox{display:flex;align-items:center;gap:0.5rem;font-size:1rem;font-weight:500}.solutions-checkbox input[type="checkbox"]{width:1.1rem;height:1.1rem;accent-color:#232324}.printable-preview{margin:2.5rem 0 2.5rem 0;display:flex;justify-content:center}.preview-image-placeholder{width:260px;height:340px;background:linear-gradient(135deg,#f5f5f5 60%,#e0e0e0 100%);border-radius:18px;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:1.1rem;font-weight:600;box-shadow:0 2px 8px rgba(0,0,0,0.06)}.printable-info{margin-top:2.5rem}.printable-info h2{font-size:1.3rem;margin-top:2rem;margin-bottom:0.7rem;color:#232324}.printable-info p,.printable-info ul,.printable-info ol{color:#444;font-size:1.05rem;margin-bottom:1.1rem}.printable-info ul,.printable-info ol{padding-left:1.5rem}@media (max-width:600px){.printable-container{padding:1.2rem 0.2rem;border-radius:12px}.preview-image-placeholder{width:98vw;max-width:320px;height:180px;font-size:0.95rem}}[data-theme="dark"] .printable-container{background:#232324;color:#fff}[data-theme="dark"] .difficulty-option{background:#181818;color:#fff}[data-theme="dark"] .difficulty-option.selected{background:#fff;color:#232324}[data-theme="dark"] .difficulty-option.selected .difficulty-label,[data-theme="dark"] .difficulty-option.selected .difficulty-desc{color:#232324}[data-theme="dark"] .difficulty-radio{background:#181818;border-color:#bbb}[data-theme="dark"] .difficulty-option.selected .difficulty-radio{background:#fff;border-color:#232324}[data-theme="dark"] .print-size-select{background:#181818;color:#fff;border:1px solid #444}[data-theme="dark"] .preview-image-placeholder{background:linear-gradient(135deg,#232324 60%,#181818 100%);color:#888}[data-theme="dark"] .printable-info h2{color:#fff}[data-theme="dark"] .printable-info p,[data-theme="dark"] .printable-info ul,[data-theme="dark"] .printable-info ol{color:#bdbdbd}.print-preview-paper{width:320px;height:453px;background:#fff;border-radius:24px;box-shadow:0 4px 32px rgba(0,0,0,0.10);padding:24px 0;display:flex;flex-direction:column;align-items:center;gap:18px;border:1.5px solid #e0e0e0;margin:0 auto}.print-preview-paper.us-letter{width:320px;height:414px}.print-preview-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr 1fr;gap:18px 18px;width:90%;height:95%;justify-items:center;align-items:center}.print-preview-sudoku-grid{width:110px;height:110px;background:#fff;border-radius:16px;border:2px solid #232324;box-shadow:0 2px 8px rgba(0,0,0,0.06);display:flex;align-items:center;justify-content:center;margin:0 auto}.print-preview-empty{background:none;border:none;box-shadow:none}.print-preview-numbers{font-size:2.1rem;font-weight:700;color:#232324;text-align:center;letter-spacing:0.15em;width:100%}@media (max-width:600px){.print-preview-paper,.print-preview-paper.us-letter{width:98vw;min-width:0;padding:10px 0;height:auto;aspect-ratio:unset}.print-preview-sudoku-grid{width:60px;height:60px}.print-preview-numbers{font-size:1.1rem}}.segmented-control{display:inline-flex;background:#f5f5f5;border-radius:12px;overflow:hidden;border:1px solid #e0e0e0;margin-right:1.2rem}.segment-btn{border:none;background:transparent;color:#232324;font-size:1rem;font-weight:600;padding:0.5rem 1.4rem;cursor:pointer;transition:background 0.2s,color 0.2s;outline:none}.segment-btn.active{background:#232324;color:#fff}[data-theme="dark"] .segmented-control{background:#181818;border:1px solid #444}[data-theme="dark"] .segment-btn{color:#fff}[data-theme="dark"] .segment-btn.active{background:#fff;color:#232324}.printable-info-container{max-width:1200px;width:100%;margin:2.5rem auto 0 auto;background:var(--card);border-radius:24px;box-shadow:0 2px 16px rgba(0,0,0,0.06);padding:2.5rem 1.5rem 2.5rem 1.5rem}.printable-flex-row{display:flex;flex-direction:row;gap:2rem;align-items:flex-start;justify-content:flex-start}.printable-left-col{flex:1 1 0;min-width:340px;max-width:420px;display:flex;flex-direction:column;gap:2.5rem;align-items:center}.printable-right-col{flex:1 1 0;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;margin-top:1.5rem}.printable-right-col h1{font-size:2.2rem;font-weight:800;margin-bottom:1.2rem}.printable-right-col .printable-desc{font-size:1.15rem;color:var(--text-secondary)}@media (max-width:900px){.printable-container{margin-left:0;margin-right:0}.printable-flex-row{flex-direction:column;gap:2rem;align-items:stretch}.printable-left-col,.printable-right-col{max-width:100%;min-width:0;align-items:stretch;margin-top:0}.printable-right-col{margin-bottom:1.5rem}}.print-preview-promo{width:110px;height:110px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.15rem;padding:0.2rem 0.3rem 0.2rem 0.3rem;text-align:center;box-sizing:border-box;background:none;border:2px solid transparent;border-radius:16px}.promo-app-icon{width:22px;height:22px;border-radius:6px;margin-bottom:0.1rem}.promo-date{font-size:0.75rem;color:#aaa;margin-bottom:0.1rem;margin-top:0.1rem}.promo-text{font-size:0.62rem;color:#232324;margin-bottom:0.15rem;font-weight:500;line-height:1.2}.promo-qr{width:26px;height:18px;background:#f5f5f5;border-radius:4px;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:0.7rem;margin:0 auto}@media (max-width:600px){.print-preview-promo{width:60px;height:60px;gap:0.05rem;padding:0.05rem}.promo-app-icon,.promo-qr{width:12px;height:12px}.promo-text{font-size:0.35rem}.promo-date{font-size:0.35rem}}.download-app-btn{display:block;width:100%;max-width:340px;margin:2rem auto 0 auto;background:#232324;color:#fff;font-size:1.25rem;font-weight:700;padding:1.1rem 0;border:none;border-radius:16px;box-shadow:0 2px 8px rgba(0,0,0,0.08);cursor:pointer;transition:background 0.2s,color 0.2s,box-shadow 0.2s;text-align:center;letter-spacing:0.01em}.download-app-btn:hover,.download-app-btn:focus{background:#111;color:#fff;box-shadow:0 4px 16px rgba(0,0,0,0.12)}.theme-btn{background:none;border:none;cursor:pointer;padding:8px;border-radius:8px;transition:background-color 0.2s}.theme-btn:hover{background-color:var(--pill-bg)}.theme-btn[aria-pressed="true"]{background-color:var(--pill-text)}.theme-btn[aria-pressed="true"] .theme-icon{filter:invert(1)}.theme-icon{width:24px;height:24px;filter:var(--icon-filter)}[data-theme="dark"] .theme-icon{--icon-filter:invert(1)}.app-card,.app-features{width:420px;min-width:320px;max-width:100%;box-sizing:border-box}.app-features{margin-left:auto}.app-card{background:var(--card);border-radius:16px;padding:24px;margin:0 auto 32px auto}.app-card-header{display:flex;align-items:center;margin-bottom:16px}.app-icon-small{width:72px;height:72px;border-radius:16px;margin-right:18px;border:1px solid #e0e0e0;background:#fff;box-sizing:border-box}[data-theme="dark"] .app-icon-small{background:#232323;border:1px solid #333}.app-info{flex:1}.app-title{font-size:1.2rem;font-weight:600;margin-bottom:2px;color:var(--text)}.app-dev{color:var(--text-secondary);font-size:1rem;margin-bottom:4px}.app-rating{color:#f5a623;font-size:1.1rem}.app-card-body{display:flex;align-items:center;justify-content:space-between}.qr-and-buttons{display:flex;align-items:center;gap:24px}.qr-code{width:110px;height:110px;border-radius:8px;border:1px solid #e0e0e0;background:#fff}[data-theme="dark"] .qr-code{background:#232323;border:1px solid #333}.store-buttons{display:flex;flex-direction:column;gap:12px}.store-btn img{height:44px;width:auto;display:block;border-radius:8px;background:none}@media (max-width:600px){.app-card{padding:12px;max-width:98vw}.app-card-header{flex-direction:column;align-items:flex-start;gap:10px}.qr-and-buttons{flex-direction:column;gap:16px}.store-buttons{flex-direction:row;gap:10px}}.app-flex-row{display:flex;flex-direction:row;gap:24px;align-items:flex-start;justify-content:flex-start;margin:2rem 0}.download-section{margin-right:auto;margin-left:0}.app-reviews-section{width:420px;min-width:320px;max-width:100%;box-sizing:border-box;display:flex;flex-direction:column}.app-reviews-section{margin:48px auto 0 auto;max-width:600px;background:var(--card);border-radius:24px;box-shadow:0 2px 8px rgba(0,0,0,0.07);padding:32px 24px 40px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:260px}.review-lyrics{display:block;text-align:center;font-size:1.5rem;font-weight:600;margin-bottom:0.7em}.review-author,.review-stars{width:100%;text-align:center;margin:0.1em 0}#appReviewsCarousel{display:none !important}.reviews-container{display:flex;gap:24px;padding:24px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;width:100%;margin:0 -24px}.review-block{flex:0 0 380px;min-width:380px;max-width:380px;background:var(--card);padding:24px;border-radius:16px;box-shadow:0 2px 8px rgba(0,0,0,0.1);display:flex;flex-direction:column;gap:16px;scroll-snap-align:start}.review-header{display:flex;justify-content:space-between;align-items:flex-start;width:100%;gap:16px}.review-title{font-weight:700;font-size:1.1rem;color:var(--text);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.review-date{color:var(--text-secondary);font-size:0.9rem;white-space:nowrap;flex-shrink:0}.review-meta{display:flex;justify-content:space-between;align-items:center;width:100%;padding-bottom:16px;gap:16px}.review-stars{display:flex;gap:4px;flex-shrink:0;min-width:88px}.star-icon{width:16px;height:16px;display:block}.star-filled{color:var(--accent)}.star-empty{color:var(--text-secondary);opacity:0.3}.review-username{color:var(--text-secondary);font-size:0.9rem;display:flex;align-items:center;justify-content:flex-end;white-space:nowrap;flex-shrink:1;min-width:0;overflow:hidden;text-overflow:ellipsis}.review-flag{margin-right:8px;font-size:1.1em;line-height:1;flex-shrink:0}.review-text{color:var(--text);line-height:1.5;overflow-wrap:break-word;width:100%}.review-translation{color:var(--text-secondary);font-style:italic;margin-top:12px;font-size:0.95em;line-height:1.5;overflow-wrap:break-word;width:100%;padding-left:12px;border-left:2px solid var(--accent)}.reviews-container::-webkit-scrollbar{display:none}.reviews-container{-ms-overflow-style:none;scrollbar-width:none}[data-theme="dark"] .review-block{background:var(--card)}[data-theme="dark"] .review-title{color:var(--text)}[data-theme="dark"] .review-text{color:var(--text)}@media (max-width:600px){.reviews-container{padding:12px;margin:0 -12px;gap:12px}.review-block{flex:0 0 280px;min-width:280px;max-width:280px;padding:16px}.review-title{font-size:1rem}.review-date,.review-username{font-size:0.8rem}.review-text{font-size:0.9rem}.review-translation{font-size:0.85rem;padding-left:8px}}.screenshot-gallery-box{background:#f5f5f5;border-radius:48px;padding:20px 0 16px 0;margin:0 auto 32px auto;box-shadow:0 2px 16px rgba(0,0,0,0.06);max-width:100vw;overflow-x:clip}.screenshot-grid{display:flex;flex-direction:row;gap:0;overflow-x:auto;padding:0 0 8px 0;scrollbar-width:thin;scrollbar-color:#bbb #f5f5f5}.screenshot-grid::-webkit-scrollbar{height:10px}.screenshot-grid::-webkit-scrollbar-thumb{background:#bbb;border-radius:8px}.screenshot-grid::-webkit-scrollbar-track{background:#f5f5f5;border-radius:8px}.screenshot-frame{background:none;border-radius:10px;display:flex;align-items:center;justify-content:center;min-width:250px;min-height:500px;padding:0;border:none;box-shadow:none}.app-screenshot-img{height:420px;width:auto;max-width:230px;border-radius:40px;background:#fff;object-fit:cover;flex-shrink:0;border:none;box-shadow:0 2px 8px rgba(0,0,0,0.06);transition:none}@media (max-width:900px){.app-screenshot-img{height:320px;max-width:140px;border-radius:18px}.screenshot-frame{min-width:150px;min-height:340px;border-radius:10px}.screenshot-gallery-box{padding:20px 6px 16px 6px;border-radius:18px}.screenshot-grid{gap:6px}}@media (max-width:600px){.app-screenshot-img{height:180px;max-width:80px;border-radius:10px}.screenshot-frame{min-width:70px;min-height:120px;border-radius:10px}.screenshot-gallery-box{padding:8px 2px 8px 2px;border-radius:10px}.screenshot-grid{gap:4px}}[data-theme="dark"] .screenshot-gallery-box{background:#232323}#appReviewsBoxed{display:flex;justify-content:center;align-items:center;margin:2.5rem 0 2.5rem 0;width:100%}.boxed-review{background:#fff;border-radius:32px;box-shadow:0 2px 12px rgba(0,0,0,0.08);padding:32px 36px 24px 36px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:320px;max-width:420px;position:relative;border:4px solid #f5f5f5;transform:rotate(-3deg)}.boxed-review blockquote{font-size:1.45rem;font-weight:700;color:#222;text-align:center;margin:0 0 18px 0;line-height:1.2}.boxed-stars{display:flex;justify-content:center;align-items:center;gap:4px;margin-top:8px;font-size:2rem;color:#222}.boxed-laurel{position:absolute;width:38px;height:38px;top:18px}.boxed-laurel.left{left:18px}.boxed-laurel.right{right:18px;transform:scaleX(-1)}@media (max-width:600px){.boxed-review{padding:18px 8px 12px 8px;min-width:0;max-width:98vw}.boxed-laurel{width:22px;height:22px;top:6px}.boxed-laurel.left{left:6px}.boxed-laurel.right{right:6px}}#appReviewsStacked{width:100%;display:flex;flex-direction:column;align-items:center;margin:3rem 0 3rem 0}.stacked-reviews-list{display:flex;flex-direction:column;gap:32px;width:100%;align-items:center}.stacked-review{background:#fff;border-radius:32px;box-shadow:0 2px 12px rgba(0,0,0,0.08);padding:32px 36px 24px 36px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:320px;max-width:420px;position:relative;border:4px solid #f5f5f5;transition:transform 0.5s cubic-bezier(.4,0,.2,1);margin:0 auto}.stacked-review blockquote{font-size:1.45rem;font-weight:700;color:#222;text-align:center;margin:0 0 18px 0;line-height:1.2}.stacked-stars{display:flex;justify-content:center;align-items:center;gap:4px;margin-top:8px;font-size:2rem;color:#222}.stacked-laurel{position:absolute;width:38px;height:38px;top:18px;pointer-events:none}.stacked-laurel.left{left:18px}.review-section{width:100%;padding:20px 0;margin:2rem auto;max-width:100%;overflow:hidden}.reviews-container{display:flex;gap:24px;padding:24px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;width:100%;margin:0 -24px}.review-block{flex:0 0 380px;min-width:380px;max-width:380px;background:var(--card);padding:24px;border-radius:16px;box-shadow:0 2px 8px rgba(0,0,0,0.1);display:flex;flex-direction:column;gap:16px;scroll-snap-align:start}@media (max-width:600px){.reviews-container{padding:12px;margin:0 -12px;gap:12px}.review-block{flex:0 0 280px;min-width:280px;max-width:280px;padding:16px}.review-title{font-size:1rem}.review-date,.review-username{font-size:0.8rem}.review-text{font-size:0.9rem}.review-translation{font-size:0.85rem;padding-left:8px}}[data-theme="dark"] .boxed-review,[data-theme="dark"] .stacked-review{background:#232323;border-color:#444}[data-theme="dark"] .boxed-review blockquote,[data-theme="dark"] .stacked-review blockquote{color:#fff}[data-theme="dark"] .boxed-stars,[data-theme="dark"] .stacked-stars{color:#fff}#appReviewsStackedSingle{width:420px;min-width:320px;max-width:100%;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;height:auto}.stacked-single-review{background:#fff;border-radius:32px;box-shadow:0 2px 12px rgba(0,0,0,0.08);padding:32px 36px 24px 36px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:320px;max-width:420px;position:static;left:unset;right:unset;top:unset;bottom:unset;margin:0 auto;border:4px solid #f5f5f5;opacity:0;transform:translateY(60px) scale(0.98);transition:opacity 0.5s cubic-bezier(.4,0,.2,1),transform 0.5s cubic-bezier(.4,0,.2,1);z-index:1}.stacked-single-review.active{opacity:1;transform:translateY(0) scale(1);z-index:2}.stacked-single-review.exit{opacity:0;transform:translateY(-60px) scale(0.98);z-index:1}.stacked-single-review blockquote{font-size:1.45rem;font-weight:700;color:#222;text-align:center;margin:0 0 18px 0;line-height:1.2}.stacked-single-stars{display:flex;justify-content:center;align-items:center;gap:4px;margin-top:8px;font-size:2rem;color:#222}.stacked-single-laurel{position:absolute;width:76px;height:76px;bottom:32px;pointer-events:none}.stacked-single-laurel.left{left:-18px;transform:rotate(-18deg)}.stacked-single-laurel.right{right:-18px;transform:scaleX(-1) rotate(18deg)}@media (max-width:900px){#appReviewsStackedSingle{width:100%;min-width:0;height:auto;margin:0 auto}.stacked-single-review{min-width:0;max-width:98vw;padding:18px 8px 12px 8px}.stacked-single-laurel{width:44px;height:44px;bottom:12px}.stacked-single-laurel.left{left:-8px;transform:rotate(-18deg)}.stacked-single-laurel.right{right:-8px;transform:scaleX(-1) rotate(18deg)}}[data-theme="dark"] .stacked-single-review{background:#232323;border-color:#444}[data-theme="dark"] .stacked-single-review blockquote{color:#fff}[data-theme="dark"] .stacked-single-stars{color:#fff}.hamburger-menu{display:none;background:none;border:none;padding:8px;cursor:pointer;z-index:1001}.hamburger-icon{width:24px;height:24px;display:flex;flex-direction:column;justify-content:space-between}.hamburger-icon span{display:block;width:100%;height:2px;background-color:var(--text);transition:all 0.3s ease}.hamburger-menu[aria-expanded="true"] .hamburger-icon span:nth-child(1){transform:translateY(11px) rotate(45deg)}.hamburger-menu[aria-expanded="true"] .hamburger-icon span:nth-child(2){opacity:0}.hamburger-menu[aria-expanded="true"] .hamburger-icon span:nth-child(3){transform:translateY(-11px) rotate(-45deg)}@media (max-width:768px){.hamburger-menu{display:block}.mobile-nav-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.18);z-index:999;transition:opacity 0.3s}.mobile-nav-overlay.active{display:block}.nav-links{position:fixed;left:0;right:0;top:auto;bottom:0;margin:0 auto;width:96vw;max-width:480px;height:auto;max-height:80vh;background:#fff;flex-direction:column;justify-content:flex-end;align-items:center;gap:1.2rem;transition:bottom 0.3s cubic-bezier(0.4,0,0.2,1);z-index:1000;padding:1.2rem 0.6rem 1.2rem 0.6rem;border-top-left-radius:24px;border-top-right-radius:24px;box-shadow:0 8px 32px rgba(0,0,0,0.18);left:50%;transform:translateX(-50%);margin-bottom:1.5vh;overflow-y:auto}.nav-links{display:none;opacity:0;transform:translateX(-50%) translateY(100%);transition:opacity 0.25s cubic-bezier(.4,0,.2,1),transform 0.25s cubic-bezier(.4,0,.2,1)}.nav-links.active{display:flex;opacity:1;transform:translateX(-50%) translateY(0)}.mobile-sheet-grabber{width:48px;height:6px;background:#e0e0e0;border-radius:3px;margin:0 auto 1.2rem auto;display:block}.nav-bubble{font-size:1rem;padding:0.7rem 1.2rem;width:100%;max-width:240px;text-align:center;border-radius:14px}.nav-icon{width:20px;height:20px}.mobile-menu-close{display:none}}[data-theme="dark"] .nav-links{background:transparent !important;color:#fff}[data-theme="dark"] .mobile-sheet-grabber{background:#444}@media (max-width:600px){.date-day{font-size:2.5rem}.date-main{font-size:2rem}.sudoku-flex-container{flex-direction:column;align-items:center;gap:2rem}.sudoku-grid{min-width:300px;min-height:300px}.number-pad{min-width:300px;min-height:auto}}nav .mobile-menu-close{display:none}@media (max-width:768px){nav .mobile-menu-close{display:block;position:absolute;top:16px;right:20px;background:none;border:none;font-size:2rem;color:#888;z-index:1100;cursor:pointer;padding:0;line-height:1}nav .mobile-menu-close:active,nav .mobile-menu-close:focus{color:#232324}}.blog-featured{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:3rem}.featured-post{background:var(--card);border-radius:var(--border-radius);overflow:hidden;transition:transform 0.2s;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.featured-post:hover{transform:translateY(-4px)}.featured-post img{width:100%;height:200px;object-fit:cover}.featured-post-content{padding:1.5rem}.featured-post h3{margin:0 0 1rem 0;font-size:1.4rem}.featured-post p{color:var(--text-secondary);margin:0 0 1.5rem 0;line-height:1.6}.featured-post .strategy-link{color:var(--primary-color);text-decoration:none;font-weight:600;font-size:0.95rem;transition:all 0.2s ease;display:inline-block}.featured-post .strategy-link:hover{color:var(--primary-dark);transform:translateX(4px)}.strategy-icon{font-size:2.5rem;margin-bottom:1rem;text-align:center}.blog-categories{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2rem;padding:1rem;background:var(--card);border-radius:var(--border-radius)}.category-tag{padding:0.5rem 1rem;background:var(--pill-bg);color:var(--pill-text);border-radius:20px;text-decoration:none;font-size:0.9rem;transition:all 0.2s}.category-tag:hover,.category-tag.active{background:var(--pill-text);color:var(--pill-bg)}.blog-intro{max-width:800px;margin:0 auto 3rem auto;text-align:center}.blog-intro p{font-size:1.1rem;line-height:1.7;color:var(--text-secondary);margin:0}.blog-container h1{text-align:center;margin:0 0 2rem 0;font-size:2.5rem;color:var(--text);font-weight:700;line-height:1.2}@media (max-width:768px){.blog-container h1{font-size:2rem;margin:0 0 1.5rem 0}}.blog-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem;margin-bottom:3rem}.blog-post-card{background:var(--card);border-radius:var(--border-radius);overflow:hidden;transition:transform 0.2s;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.blog-post-card:hover{transform:translateY(-4px)}.blog-post-card img{width:100%;height:180px;object-fit:cover}.blog-post-card-content{padding:1.5rem}.blog-post-card h3{margin:0 0 1rem 0;font-size:1.2rem}.blog-post-card p{color:var(--text-secondary);margin:0 0 1rem 0;line-height:1.6;font-size:0.9rem}.blog-post-card .strategy-link{color:var(--primary-color);text-decoration:none;font-weight:500;font-size:0.9rem;transition:all 0.2s ease;display:inline-block;margin-top:0.5rem}.blog-post-card .strategy-link:hover{color:var(--primary-dark);transform:translateX(4px)}.blog-post-card .strategy-difficulty{margin-bottom:1rem}.blog-post-meta{display:flex;gap:1rem;color:var(--text-secondary);font-size:0.8rem;margin-top:1rem}.pagination{display:flex;justify-content:center;gap:0.5rem;margin:2rem 0}.pagination a{padding:0.5rem 1rem;background:var(--card);color:var(--text);text-decoration:none;border-radius:var(--border-radius);transition:all 0.2s}.pagination a:hover,.pagination a.active{background:var(--pill-text);color:var(--pill-bg)}.pagination a.disabled{opacity:0.5;pointer-events:none}@media (max-width:768px){.blog-featured{grid-template-columns:1fr}.blog-list{grid-template-columns:1fr}.blog-categories{padding:0.8rem;gap:0.8rem}.category-tag{padding:0.4rem 0.8rem;font-size:0.8rem}}.white-section{border-radius:18px;padding:2.5rem 1rem;margin:2.5rem auto 0 auto;max-width:1200px}[data-theme="dark"] .white-section{background:#232323;color:#fff}@media (max-width:600px){.white-section{padding:1.2rem 0.3rem;border-radius:12px}}.app-hero-flex{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:3.5rem;margin:2.5rem 0 2.5rem 0}.app-hero-content{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;min-width:320px;max-width:420px;width:100%}@media (max-width:900px){.app-hero-flex{flex-direction:column;gap:2rem;align-items:center}.app-hero-content{align-items:center;min-width:0;max-width:98vw}}.strategy-layout{display:grid;grid-template-columns:1fr 300px;gap:2rem;max-width:1200px;margin:0 auto;padding:0 1rem}.strategy-content{min-width:0}.strategy-sidebar{position:sticky;top:120px;height:fit-content;background:var(--card);border-radius:var(--border-radius);padding:1.5rem;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.strategy-sidebar h3{margin:0 0 1rem 0;color:var(--text);font-size:1.2rem}.strategy-sidebar ul{list-style:none;padding:0;margin:0}.strategy-sidebar li{margin-bottom:0.5rem}.strategy-sidebar a{display:block;padding:0.75rem 1rem;color:var(--text);text-decoration:none;border-radius:var(--border-radius);transition:all 0.2s ease;border:1px solid transparent}.strategy-sidebar a:hover{background:var(--accent-subtle);border-color:var(--accent)}.strategy-sidebar a.active{background:var(--primary-color);color:white;border-color:var(--primary-color)}.strategy-sidebar a.active:hover{background:var(--primary-color);opacity:0.9}.strategy-link{display:inline-block;color:var(--primary-color);text-decoration:none;font-weight:500;margin-top:1rem;transition:all 0.2s ease}.strategy-link:hover{color:var(--primary-dark);transform:translateX(4px)}.difficulty-badge{display:inline-block;padding:0.25rem 0.75rem;border-radius:12px;font-size:0.75rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;margin-top:0.5rem}.difficulty-badge.beginner{background:#e8f5e8;color:#2d5a2d}.difficulty-badge.intermediate{background:#fff3cd;color:#856404}.difficulty-badge.advanced{background:#f8d7da;color:#721c24}.difficulty-badge.expert{background:#d1ecf1;color:#0c5460}.getting-started-section{background:var(--card);border-radius:var(--border-radius);padding:2rem;margin-top:3rem;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.getting-started-content h2{margin:0 0 1rem 0;color:var(--text);font-size:1.5rem}.getting-started-content p{color:var(--text-secondary);margin:0 0 1.5rem 0;line-height:1.6;max-width:600px;margin-left:auto;margin-right:auto}.cta-button{display:inline-block;background:var(--primary-color);color:white;padding:0.75rem 1.5rem;border-radius:var(--border-radius);text-decoration:none;font-weight:600;transition:all 0.2s ease;border:2px solid var(--primary-color)}.cta-button:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.15)}@media (max-width:900px){.strategy-layout{grid-template-columns:1fr;gap:1rem}.strategy-sidebar{position:static;order:-1}.getting-started-section{padding:1.5rem;margin-top:2rem}.getting-started-content h2{font-size:1.3rem}}