:root{--text:#333;--text-light:#666;--bg:#fff;--border:#e0e0e0;--shadow:0 4px 12px #0000001a;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5}body{min-height:100vh;margin:0;overflow-x:hidden}#app{min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2}button{cursor:pointer;font-family:inherit}img{max-width:100%;height:auto}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}:focus-visible{outline-offset:2px;outline:3px solid #7cb342}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a1a1a1}.game-header{text-align:center;margin-bottom:1.5rem}.game-header h3{color:#7cb342;margin-bottom:.5rem;font-size:1.5rem}.hint{color:#666;font-size:1.1rem;font-style:italic}.target-words{text-align:center;background:#f5f5f5;border-radius:8px;margin-top:1rem;padding:.75rem}.target-words p{color:#555;font-weight:500}.word-fill-game{flex-direction:column;align-items:center;padding:1rem;display:flex}.grid-container{background:#fff;border:3px solid #7cb342;border-radius:8px;padding:4px;display:inline-block}.grid-row{display:flex}.grid-cell{cursor:pointer;border:1px solid #ddd;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.25rem;font-weight:700;transition:all .2s;display:flex;position:relative}.grid-cell.active{background:#fff}.grid-cell.empty{background:#f0f0f0}.grid-cell.selected{background:#e8f5e9;border-color:#7cb342;box-shadow:inset 0 0 0 2px 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var(--primary-dark), 0 10px 20px #7cb3424d;border:none;border-radius:16px;align-items:center;gap:.75rem;padding:1.25rem 2.5rem;font-size:1.25rem;font-weight:700;transition:all .3s;display:flex}.primary-button:hover{box-shadow:0 9px 0 var(--primary-dark), 0 15px 30px #7cb34266;transform:translateY(-3px)}.primary-button:active{box-shadow:0 3px 0 var(--primary-dark), 0 5px 10px #7cb3424d;transform:translateY(3px)}.button-icon{font-size:1.5rem}.secondary-actions{gap:1rem;display:flex}.secondary-button{color:var(--text);border:2px solid var(--border);cursor:pointer;background:#fff;border-radius:12px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;transition:all .2s;display:flex}.secondary-button:hover{background:var(--bg-light);border-color:var(--primary)}.token-display{box-shadow:var(--shadow);background:#fff;border-radius:50px;justify-content:center;align-items:center;gap:.5rem;width:fit-content;margin:0 auto 2rem;padding:.75rem 1.5rem;display:flex}.token-icon{font-size:1.5rem}.token-count{color:var(--accent);font-size:1.5rem;font-weight:700}.token-label{color:var(--text-light);font-size:.9rem}.features-preview{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;max-width:600px;margin:0 auto;display:grid}.feature-card{text-align:center;box-shadow:var(--shadow);background:#fff;border-radius:16px;padding:1.5rem 1rem;transition:all .2s}.feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.feature-icon{margin-bottom:.5rem;font-size:2.5rem;display:block}.feature-card h3{color:var(--text);margin-bottom:.25rem;font-size:1rem}.feature-card p{color:var(--text-light);font-size:.85rem}.settings-screen{background:var(--bg);min-height:100vh}.settings-header{border-bottom:1px solid var(--border);align-items:center;gap:1rem;padding:1rem 1.5rem;display:flex}.settings-header h2{color:var(--text);font-size:1.5rem}.settings-content{max-width:600px;padding:1.5rem}.setting-item{border-bottom:1px 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fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.3s ease-out fadeIn}.slide-up{animation:.4s ease-out slideUp}