body{margin:0;padding:0;font-family:Arial,sans-serif;line-height:1.5;background-color:#fdfdfd;font-size:20px}#root>div{padding:20px;max-width:900px;margin:0 auto}.highlight{background-color:#ff0;transition:background-color .5s ease}.highlight-section{transition:background-color .5s ease}.highlight-section.active{background-color:#fff3b0;padding:10px;border-radius:5px}.section-divider{height:2px;background-color:#ddd;margin:20px 0}.tab{display:flex;gap:10px;margin-bottom:20px}.tab button{padding:10px 20px;border:1px solid #ccc;background-color:#eee;cursor:pointer;border-radius:5px;font-size:16px;transition:background-color .2s}.tab button:hover{background-color:#ddd}.tab button.active{background-color:#bbb;font-weight:700}.tabcontent{padding:10px 0}h1,h2,h3,h5{margin-top:0}iframe,img{max-width:100%}.puzzle-button{padding:8px 16px;margin:5px 5px 5px 0;background-color:#007bff;color:#fff;border:none;border-radius:5px;cursor:pointer;font-weight:700;transition:background-color .2s}.puzzle-button:hover{background-color:#0056b3}.dropdown{position:relative;display:inline-block}.dropdown-content{display:none;position:absolute;background-color:#fff;min-width:160px;box-shadow:0 8px 16px #0003;z-index:1;flex-direction:column}.dropdown-content span{padding:8px 12px;cursor:pointer}.dropdown-content span:hover{background-color:#f1f1f1}.dropdown:hover .dropdown-content{display:flex}.game-controls{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.top-row{display:flex;justify-content:space-between;align-items:center}.button-row{display:flex;gap:10px}.timer{font-weight:700;margin-left:auto}.game-section{margin:20px 0;padding:10px;border:1px solid #ddd;border-radius:6px}.controls-divider{height:1px;background-color:#ccc;margin:8px 0}.difficulty-select{padding:6px 10px;font-size:16px;border-radius:4px}.hangman button{padding:10px 14px;font-size:18px;margin:3px;border-radius:6px;cursor:pointer}.hangman button:disabled{opacity:.5;cursor:not-allowed}