:root{--primary-color:#2c3e50;--secondary-color:#3498db;--accent-color:#e74c3c;--success-color:#27ae60;--warning-color:#f39c12;--light-color:#f8f9fa;--dark-color:#2c3e50;--gray-color:#95a5a6;--bg-color:#f5f7fa;--card-bg:white;--text-color:#2c3e50;--border-color:#ddd;--shadow-color:rgba(0, 0, 0, 0.1);--border-radius:10px;--box-shadow:0 5px 15px var(--shadow-color);--transition:all 0.3s ease}[data-theme=dark]{--primary-color:#3498db;--secondary-color:#1abc9c;--accent-color:#e74c3c;--success-color:#2ecc71;--warning-color:#f1c40f;--light-color:#34495e;--dark-color:#ecf0f1;--gray-color:#7f8c8d;--bg-color:#1a1a2e;--card-bg:#16213e;--text-color:#ecf0f1;--border-color:#2c3e50;--shadow-color:rgba(0, 0, 0, 0.3)}*{margin:0;padding:0;box-sizing:border-box;max-width:100%;overflow-x:visible}body,html{max-width:100%;overflow-x:hidden}a,button,input{touch-action:manipulation}body{font-family:'Segoe 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(min-width:769px){.custom-keyboard{display:none!important}}@media (max-width:768px){.custom-keyboard{position:fixed;bottom:0;left:0;right:0;background-color:var(--card-bg);border-top:2px solid var(--secondary-color);box-shadow:0 -5px 20px rgba(0,0,0,.3);z-index:1000000;padding:15px;animation:slideUp .3s ease}@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}.custom-keyboard.hidden{display:none}.keyboard-header{display:flex;justify-content:flex-end;margin-bottom:10px}.keyboard-close{background:0 0;border:none;color:var(--gray-color);font-size:1.2rem;cursor:pointer;padding:5px 10px}.keyboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:10px}.key-btn{background-color:var(--light-color);border:2px solid var(--border-color);border-radius:8px;padding:10px 0;font-size:1.3rem;font-weight:700;color:var(--text-color);cursor:pointer;transition:all .1s 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blink{0%,50%{opacity:1}100%,51%{opacity:0}}.simulated-cursor{animation:blink 1s step-end infinite}