body{margin:0;padding:0;overflow:hidden;background-color:#2c3e50;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.app-container{width:100%;height:100%;position:relative;background-color:#2c3e50;view-transition-name:app-maze}::view-transition-group(app-maze){animation-duration:.6s;animation-timing-function:cubic-bezier(.22,1,.36,1)}canvas{display:block;width:100%;height:100%}.overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#000c;display:flex;justify-content:center;align-items:center;z-index:10}.modal{background:#fff;padding:30px;border-radius:20px;text-align:center;max-width:80%}h1{margin-top:0;color:#2c3e50}button{background:#2c3e50;color:#fff;border:none;padding:15px 30px;font-size:18px;border-radius:30px;cursor:pointer;font-weight:700;margin-top:20px;transition:transform .1s}button:active{transform:scale(.95)}.completion-time{font-size:20px;color:#2c3e50;margin:20px 0;font-weight:600}.completion-time span{color:#3498db;font-size:28px;font-weight:700}.share-btn{background:#3498db;margin-right:10px}.share-btn:hover{background:#2980b9}.modal button{display:inline-block}.hidden{display:none}.dark-mode-btn{position:absolute;top:20px;right:20px;background:#fffc;border:none;border-radius:50%;width:44px;height:44px;font-size:24px;cursor:pointer;box-shadow:0 2px 5px #0003;display:flex;justify-content:center;align-items:center;transition:all .3s ease;padding:0;margin:0;z-index:20}.dark-mode-btn:hover{transform:scale(1.1);background:#fff}body.dark-mode{background-color:#2c3e50}body.dark-mode .dark-mode-btn{background:#2c3e50cc;color:#ecf0f1;box-shadow:0 2px 5px #fff3}body.dark-mode .dark-mode-btn:hover{background:#34495e}body.dark-mode .modal{background:#34495e;color:#ecf0f1}body.dark-mode h1,body.dark-mode p,body.dark-mode .completion-time{color:#ecf0f1}body.dark-mode button{background:#2c3e50;border:1px solid #7f8c8d}body.dark-mode button:hover{background:#34495e}body.dark-mode .share-btn{background:#3498db;border:none}body.dark-mode .completion-time span{color:#3498db}