1 files changed, 149 insertions, 0 deletions
diff --git a/frontend/src/components/ChatInterface.css b/frontend/src/components/ChatInterface.css
new file mode 100644
index 0000000..531d2a3
--- /dev/null
+++ b/frontend/src/components/ChatInterface.css
@@ -0,0 +1,149 @@
+.chat-interface {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  height: 100vh;
+  background: #ffffff;
+}
+
+.messages-container {
+  flex: 1;
+  overflow-y: auto;
+  padding: 24px;
+}
+
+.empty-state {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  height: 100%;
+  color: #666;
+  text-align: center;
+}
+
+.empty-state h2 {
+  margin: 0 0 8px 0;
+  font-size: 24px;
+  color: #333;
+}
+
+.empty-state p {
+  margin: 0;
+  font-size: 16px;
+}
+
+.message-group {
+  margin-bottom: 32px;
+}
+
+.user-message,
+.assistant-message {
+  margin-bottom: 16px;
+}
+
+.message-label {
+  font-size: 12px;
+  font-weight: 600;
+  color: #666;
+  margin-bottom: 8px;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.user-message .message-content {
+  background: #f0f7ff;
+  padding: 16px;
+  border-radius: 8px;
+  border: 1px solid #d0e7ff;
+  color: #333;
+  line-height: 1.6;
+  max-width: 80%;
+  white-space: pre-wrap;
+}
+
+.loading-indicator {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 16px;
+  color: #666;
+  font-size: 14px;
+}
+
+.spinner {
+  width: 20px;
+  height: 20px;
+  border: 2px solid #e0e0e0;
+  border-top-color: #4a90e2;
+  border-radius: 50%;
+  animation: spin 0.8s linear infinite;
+}
+
+@keyframes spin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+.input-form {
+  display: flex;
+  align-items: flex-end;
+  gap: 12px;
+  padding: 24px;
+  border-top: 1px solid #e0e0e0;
+  background: #fafafa;
+}
+
+.message-input {
+  flex: 1;
+  padding: 14px;
+  background: #ffffff;
+  border: 1px solid #d0d0d0;
+  border-radius: 8px;
+  color: #333;
+  font-size: 15px;
+  font-family: inherit;
+  line-height: 1.5;
+  outline: none;
+  resize: vertical;
+  min-height: 80px;
+  max-height: 300px;
+}
+
+.message-input:focus {
+  border-color: #4a90e2;
+  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
+}
+
+.message-input:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+  background: #f5f5f5;
+}
+
+.send-button {
+  padding: 14px 28px;
+  background: #4a90e2;
+  border: 1px solid #4a90e2;
+  border-radius: 8px;
+  color: #fff;
+  font-size: 15px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.2s;
+  white-space: nowrap;
+  align-self: flex-end;
+}
+
+.send-button:hover:not(:disabled) {
+  background: #357abd;
+  border-color: #357abd;
+}
+
+.send-button:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+  background: #ccc;
+  border-color: #ccc;
+}