body{background:linear-gradient(120deg,#eef2f7,#dfe9f3);font-family:Segoe UI,system-ui,sans-serif}button{padding:10px 18px;border-radius:10px;border:none;background:linear-gradient(45deg,#6a11cb,#2575fc);color:#fff;font-weight:600;cursor:pointer;transition:all .2s ease;font-size:14px}button:hover{transform:translateY(-1px);box-shadow:0 6px 14px #00000026}button:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}button.correct{background:linear-gradient(45deg,#22c55e,#16a34a)}button.wrong,button.end-btn{background:linear-gradient(45deg,#ef4444,#dc2626)}button.buzz-btn{font-size:30px;padding:20px 60px}input,textarea,select{padding:10px 14px;border-radius:10px;border:1px solid #d1d5db;outline:none;font-size:14px;transition:all .2s ease}input:focus,textarea:focus,select:focus{border-color:#6a11cb;box-shadow:0 0 0 3px #6a11cb26}.card{background:#fff;border-radius:16px;padding:25px;box-shadow:0 10px 25px #00000014}