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style.css

@@ -1,76 +1,236 @@
 * {
-    box-sizing: border-box;
-    padding: 0;
     margin: 0;
-    font-family: sans-serif;
+    padding: 0;
+    box-sizing: border-box;
 }
 
-html,
 body {
-    height: 100%;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    min-height: 100vh;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    padding: 20px;
 }
 
-body {
-    padding: 32px;
+.container {
+    width: 100%;
+    max-width: 800px;
+    background: white;
+    border-radius: 20px;
+    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
+    overflow: hidden;
+    position: relative;
+}
+
+header {
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    color: white;
+    padding: 25px;
+    text-align: center;
+}
+
+header h1 {
+    font-size: 28px;
+    margin-bottom: 5px;
+}
+
+header p {
+    opacity: 0.9;
+    font-size: 14px;
 }
 
-body,
-#container {
+.chat-container {
     display: flex;
     flex-direction: column;
-    justify-content: center;
-    align-items: center;
+    height: 500px;
 }
 
-#container {
-    position: relative;
-    gap: 0.4rem;
+.chat-messages {
+    flex: 1;
+    overflow-y: auto;
+    padding: 20px;
+    background: #f8f9fa;
+}
 
-    width: 640px;
-    height: 640px;
-    max-width: 100%;
-    max-height: 100%;
+.message {
+    display: flex;
+    margin-bottom: 15px;
+    animation: fadeIn 0.3s ease-in;
+}
 
-    border: 2px dashed #D1D5DB;
-    border-radius: 0.75rem;
-    overflow: hidden;
-    cursor: pointer;
-    margin: 1rem;
+@keyframes fadeIn {
+    from {
+        opacity: 0;
+        transform: translateY(10px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
 
-    background-size: 100% 100%;
-    background-position: center;
-    background-repeat: no-repeat;
-    font-size: 18px;
+.message.user {
+    justify-content: flex-end;
 }
 
-#upload {
-    display: none;
+.message.assistant {
+    justify-content: flex-start;
 }
 
-svg {
-    pointer-events: none;
+.message-content {
+    max-width: 70%;
+    padding: 12px 16px;
+    border-radius: 18px;
+    word-wrap: break-word;
+    line-height: 1.4;
 }
 
-#example {
-    font-size: 14px;
-    text-decoration: underline;
-    cursor: pointer;
+.message.user .message-content {
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    color: white;
+    border-bottom-right-radius: 4px;
 }
 
-#example:hover {
-    color: #2563EB;
+.message.assistant .message-content {
+    background: white;
+    color: #333;
+    border-bottom-left-radius: 4px;
+    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
 }
 
-.bounding-box {
-    position: absolute;
-    box-sizing: border-box;
-    border: solid 2px;
+.input-container {
+    display: flex;
+    padding: 20px;
+    background: white;
+    border-top: 1px solid #e0e0e0;
+    gap: 10px;
 }
 
-.bounding-box-label {
+#userInput {
+    flex: 1;
+    padding: 12px 16px;
+    border: 2px solid #e0e0e0;
+    border-radius: 25px;
+    font-size: 16px;
+    outline: none;
+    transition: border-color 0.3s;
+}
+
+#userInput:focus {
+    border-color: #667eea;
+}
+
+#userInput:disabled {
+    background: #f5f5f5;
+    cursor: not-allowed;
+}
+
+#sendButton {
+    width: 50px;
+    height: 50px;
+    border-radius: 50%;
+    border: none;
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
     color: white;
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: transform 0.2s, opacity 0.2s;
+}
+
+#sendButton:hover:not(:disabled) {
+    transform: scale(1.05);
+}
+
+#sendButton:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+.loading-indicator {
     position: absolute;
-    font-size: 12px;
-    margin: -16px 0 0 -2px;
-    padding: 1px;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    text-align: center;
+    background: white;
+    padding: 30px;
+    border-radius: 15px;
+    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
+    z-index: 10;
+}
+
+.spinner {
+    width: 50px;
+    height: 50px;
+    border: 4px solid #f3f3f3;
+    border-top: 4px solid #667eea;
+    border-radius: 50%;
+    animation: spin 1s linear infinite;
+    margin: 0 auto 15px;
+}
+
+@keyframes spin {
+    0% { transform: rotate(0deg); }
+    100% { transform: rotate(360deg); }
+}
+
+.typing-indicator {
+    display: inline-flex;
+    gap: 4px;
+}
+
+.typing-indicator span {
+    width: 8px;
+    height: 8px;
+    background: #667eea;
+    border-radius: 50%;
+    animation: typing 1.4s infinite;
+}
+
+.typing-indicator span:nth-child(2) {
+    animation-delay: 0.2s;
+}
+
+.typing-indicator span:nth-child(3) {
+    animation-delay: 0.4s;
+}
+
+@keyframes typing {
+    0%, 60%, 100% {
+        transform: translateY(0);
+        opacity: 0.5;
+    }
+    30% {
+        transform: translateY(-10px);
+        opacity: 1;
+    }
+}
+
+.error-message {
+    color: #d32f2f;
+    font-size: 16px;
+}
+
+@media (max-width: 600px) {
+    .container {
+        border-radius: 0;
+        height: 100vh;
+        max-width: 100%;
+    }
+    
+    .chat-container {
+        height: calc(100vh - 120px);
+    }
+    
+    .message-content {
+        max-width: 85%;
+    }
+    
+    header h1 {
+        font-size: 24px;
+    }
 }