body{margin:0;padding:0;font-family:Arial,Helvetica,sans-serif}.app{text-align:center;color:#000;background:#f4f4f4;min-height:100vh;padding:40px}.dark{color:#fff;background:#111827}.quote-card{color:#fff;background:#1f2937;border-radius:16px;width:500px;margin:30px auto;padding:30px}.quote-text{font-size:24px;line-height:1.5}.quote-author{margin-top:20px}button{cursor:pointer;border:none;border-radius:10px;margin:10px;padding:12px 20px}.category-container{margin:20px 0}.search-input{border:none;border-radius:8px;width:300px;padding:12px}.favorites-section{margin-top:50px}.favorite-card{color:#000;background:#fff;border-radius:10px;width:400px;margin:10px auto;padding:15px}