body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#fff}header{background-color:#fff;color:#87ceeb;padding:10px;text-align:center;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center}.logo-img{max-height:100px;margin-right:10px}nav ul{list-style:none;margin:50px;padding:0}nav ul li{display:inline-block;margin-right:20px}nav a{color:#87ceeb;text-decoration:none;font-weight:700}.container{max-width:800px;margin:20px auto;padding:20px;border:0px solid #ccc;display:flex;justify-content:space-between}.chat-container{flex:1;display:flex;flex-direction:column}.response-container{background-color:#87ceeb;color:#fff;padding:10px;border-radius:8px;max-width:90%;margin-left:10px;position:relative}.response-textarea{box-sizing:border-box;border:none;outline:none;background:transparent;color:inherit;width:100%;resize:none}.response-container:before{content:"";position:absolute;top:50%;right:-20px;width:0;height:0;border-top:10px solid transparent;border-left:20px solid #87CEEB;border-bottom:10px solid transparent}#response-text{font-size:14px;font-weight:700;color:#fff;margin-top:10px;line-height:1.5;font-family:Comic Sans MS,cursive}.custom-response-style,.response-text-style{font-size:14px;font-weight:700;color:#fff;margin-top:15px;line-height:1.5;font-family:Comic Sans MS,cursive}.message-input{box-sizing:border-box;padding:10px;margin-bottom:10px;border:1px solid #ddd;border-radius:8px;width:100%;max-width:95%;height:60px;resize:none}.case-container{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;margin-top:20px;margin-left:175px}.case-button{display:inline-block;margin-right:2%;margin-bottom:10px;padding:5px;background-color:#b2d177;color:#fff;text-decoration:none;border:none;border-radius:5px;cursor:pointer;width:150px;height:40px}.case-button:hover{background-color:#289941}.case-button:focus{outline:none;box-shadow:0 0 0 2px #007bff}.submit-button{padding:10px;background-color:#87ceeb;color:#fff;border:none;cursor:pointer;border-radius:8px;transition:background-color .3s ease}.submit-button:hover{background-color:#5f9ea0}.sample-image{max-height:300px;max-width:100%}.spinner{border:4px solid rgba(0,0,0,.1);border-top:4px solid #3498db;border-radius:50%;width:20px;height:20px;animation:spin 1s linear infinite;display:none;margin-bottom:10px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}