/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

:root {
  --vscode-font-family: var(--vscode-font-family);
  --vscode-editor-background: var(--vscode-editor-background);
  --vscode-editor-foreground: var(--vscode-editor-foreground);
  --vscode-input-background: var(--vscode-input-background);
  --vscode-input-foreground: var(--vscode-input-foreground);
  --vscode-button-background: var(--vscode-button-background);
  --vscode-button-foreground: var(--vscode-button-foreground);
  --vscode-button-hoverBackground: var(--vscode-button-hoverBackground);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--vscode-font-family);
  background-color: var(--vscode-editor-background);
  color: var(--vscode-editor-foreground);
  overflow: hidden;
}

.chat-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100%;
}

.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 80%;
  padding: 12px 16px;
  border-radius: 8px;
  animation: fadeIn 0.2s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message.user {
  align-self: flex-end;
  background-color: var(--vscode-button-background);
  color: var(--vscode-button-foreground);
}

.message.assistant {
  align-self: flex-start;
  background-color: var(--vscode-input-background);
  color: var(--vscode-input-foreground);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.message.streaming {
  position: relative;
}

.streaming-indicator {
  position: absolute;
  right: 12px;
  bottom: 12px;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

.message-content {
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.5;
}

.message-timestamp {
  font-size: 11px;
  opacity: 0.6;
  align-self: flex-end;
}

.input-form {
  display: flex;
  gap: 8px;
  padding: 16px;
  background-color: var(--vscode-editor-background);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.input-field {
  flex: 1;
  padding: 10px 12px;
  background-color: var(--vscode-input-background);
  color: var(--vscode-input-foreground);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  font-size: 14px;
  font-family: var(--vscode-font-family);
  outline: none;
}

.input-field:focus {
  border-color: var(--vscode-button-background);
}

.input-field:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.send-button {
  padding: 10px 20px;
  background-color: var(--vscode-button-background);
  color: var(--vscode-button-foreground);
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.send-button:hover:not(:disabled) {
  background-color: var(--vscode-button-hoverBackground);
}

.send-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Scrollbar styling */
.messages-container::-webkit-scrollbar {
  width: 8px;
}

.messages-container::-webkit-scrollbar-track {
  background: transparent;
}

.messages-container::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Session selector styles */
.chat-header {
  display: flex;
  justify-content: flex-end;
  padding: 12px 16px;
  background-color: var(--vscode-editor-background);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.session-button {
  padding: 6px 12px;
  background-color: var(--vscode-button-background);
  color: var(--vscode-button-foreground);
  border: none;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.session-button:hover {
  background-color: var(--vscode-button-hoverBackground);
}

.session-selector-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease-in;
}

.session-selector {
  background-color: var(--vscode-editor-background);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  width: 80%;
  max-width: 500px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.session-selector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.session-selector-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
}

.session-selector-header button {
  background: none;
  border: none;
  color: var(--vscode-editor-foreground);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.session-selector-header button:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.session-selector-actions {
  padding: 12px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.new-session-button {
  width: 100%;
  padding: 8px 16px;
  background-color: var(--vscode-button-background);
  color: var(--vscode-button-foreground);
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.new-session-button:hover {
  background-color: var(--vscode-button-hoverBackground);
}

.session-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.no-sessions {
  text-align: center;
  padding: 40px 20px;
  color: rgba(255, 255, 255, 0.5);
}

.session-item {
  padding: 12px 16px;
  margin-bottom: 8px;
  background-color: var(--vscode-input-background);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.session-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--vscode-button-background);
}

.session-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  opacity: 0.7;
  margin-bottom: 4px;
}

.session-time {
  color: var(--vscode-descriptionForeground);
}

.session-count {
  color: var(--vscode-descriptionForeground);
}

.session-id {
  font-size: 12px;
  opacity: 0.6;
  font-family: monospace;
}