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button{width:100%;padding:12px;background-color:#4facfe;color:#fff;font-weight:700;border:none;border-radius:8px;cursor:pointer;transition:transform .2s ease}.login-box button:hover{transform:scale(1.03);background-color:#00c6ff}.link-text{color:#e0e0e0;cursor:pointer;font-size:14px;margin-top:10px}.link-text:hover{text-decoration:underline;color:#fff}.error-text{color:#ff6b6b;font-size:14px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:1f1f1f}.home-container{min-height:100%;display:flex;flex-direction:column;padding:20px}.home-header{background-color:1f1f1f;color:#fff;padding:20px;border-radius:8px;text-align:center;margin-bottom:20px}.book-grid{flex:1;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px;padding-bottom:20px}.book-card{background-color:#fff;padding:15px;border-radius:10px;box-shadow:0 4px 8px #0000001a;text-align:center;transition:transform .2s}.book-card:hover{transform:translateY(-5px)}.book-image{width:100px;height:150px;object-fit:cover;margin-bottom:10px}.buy-btn:hover{background-color:#45a049}.qty-control{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:10px}.qty-control button{background-color:#4facfe;border:none;padding:6px 12px;color:#fff;font-size:16px;border-radius:5px;cursor:pointer}.qty-control span{font-size:16px;font-weight:700}.buy-btn{padding:8px 12px;background-color:#4caf50;color:#fff;border:none;border-radius:6px;cursor:pointer;margin-top:10px}.home-header{background-color:#4facfe;color:#fff;padding:15px 30px;border-radius:8px;margin-bottom:20px;display:flex;justify-content:space-between;align-items:center}.header-btn{background-color:#fff;color:#4facfe;border:none;padding:8px 14px;margin-left:10px;font-weight:700;border-radius:6px;cursor:pointer;transition:background-color .2s}.header-btn:hover{background-color:#e0e0e0}.logout{background-color:#ff4d4d;color:#fff}.logout:hover{background-color:#ff1a1a}@keyframes bounce{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.book-card.animate{animation:bounce .3s ease}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}.pulse-animate{animation:pulse .4s ease}@keyframes shake{0%{transform:translate(0)}25%{transform:translate(-5px)}50%{transform:translate(5px)}75%{transform:translate(-5px)}to{transform:translate(0)}}.shake-animate{animation:shake .4s ease}.cart-container{padding:30px;max-width:800px;margin:auto}.cart-item{display:flex;gap:20px;margin-bottom:20px;background:#fff;padding:15px;border-radius:10px;box-shadow:0 4px 10px #0000001a}.cart-item img{width:100px;height:150px;object-fit:cover}.cart-actions{margin-top:20px;display:flex;justify-content:space-between}.cart-actions button{padding:10px 20px;border:none;font-weight:700;border-radius:6px;cursor:pointer;background-color:#4facfe;color:#fff}.cart-actions button:hover{background-color:#00c6ff}.checkout-container{max-width:500px;margin:40px auto;padding:30px;background-color:#f9f9f9;border-radius:12px;box-shadow:0 5px 15px #0000001a}.checkout-form{display:flex;flex-direction:column}.checkout-form label{margin-bottom:15px;font-weight:700}.checkout-form input{padding:10px;font-size:16px;margin-top:5px;border:1px solid #ccc;border-radius:6px;width:100%}.checkout-buttons{display:flex;justify-content:space-between;margin-top:20px}.checkout-buttons button{padding:10px 15px;font-weight:700;background-color:#4facfe;color:#fff;border:none;border-radius:6px;cursor:pointer;transition:background-color .2s}.checkout-buttons button:hover{background-color:#00c6ff}.register-page{display:flex;justify-content:center;align-items:center;height:100vh;width:100vw;background-size:cover;background-position:center;position:relative;animation:backgroundSlide 25s infinite;transition:background-image 1s ease-in-out}@keyframes backgroundSlide{0%{background-image:url(/assets/bg1.jpg)}20%{background-image:url(/assets/bg2.jpg)}40%{background-image:url(/assets/bg3.jpg)}60%{background-image:url(/assets/bg4.jpg)}80%{background-image:url(/assets/bg5.jpg)}to{background-image:url(/assets/bg1.jpg)}}.register-box{background-color:#ffffff26;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:40px;border-radius:16px;width:320px;text-align:center;box-shadow:0 10px 40px #0003;z-index:1;position:relative}.register-box h2{margin-bottom:20px;color:#fff}.register-box input{width:100%;padding:10px;margin:12px 0;border:none;border-radius:8px;background-color:#fffc;color:#000;transition:border-color .3s}.register-box input:focus{outline:none;border-bottom:2px solid #2980b9}.register-box button{background-color:#2980b9;color:#fff;border:none;padding:12px 20px;font-size:16px;border-radius:5px;margin-top:10px;width:100%;cursor:pointer;transition:transform .2s ease}.register-box button:hover{transform:scale(1.03);background-color:#1e6091}.register-box .error{color:red;margin-top:10px}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}