:root {
	--primary-color: #4f46e5;
	--secondary-color: #10b981;
	--accent-color: #f59e0b;
	--bg-primary: #ffffff;
	--bg-secondary: #f9fafb;
	--text-primary: #111827;
	--text-secondary: #6b7280;
	--border-color: #e5e7eb;
	--user-bubble: #4f46e5;
	--assistant-bubble: #f3f4f6;
	--spacing: 1rem;
	--transition: all 0.3s ease;
}

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

html, body {
	height: 100%;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	background-color: var(--bg-secondary);
	color: var(--text-primary);
}

.container {
	display: flex;
	height: 100vh;
	gap: var(--spacing);
	padding: var(--spacing);
	background-color: var(--bg-secondary);
}

/* Sidebar */
.sidebar {
	width: 300px;
	background-color: var(--bg-primary);
	border-radius: 12px;
	padding: calc(var(--spacing) * 1.5);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
	overflow-y: auto;
	border: 1px solid var(--border-color);
}

.sidebar-header {
	margin-bottom: calc(var(--spacing) * 2);
	border-bottom: 2px solid var(--primary-color);
	padding-bottom: var(--spacing);
}

.sidebar-header h2 {
	font-size: 1.5rem;
	color: var(--primary-color);
}

.sidebar-section {
	margin-bottom: calc(var(--spacing) * 2);
}

.sidebar-section h3 {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--text-secondary);
	text-transform: uppercase;
	letter-spacing: 0.5px;
	margin-bottom: var(--spacing);
}

.tags-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: var(--spacing);
	min-height: 40px;
	align-items: center;
}

.tag {
	display: inline-block;
	background-color: var(--bg-secondary);
	color: var(--text-primary);
	padding: 0.4rem 0.8rem;
	border-radius: 20px;
	font-size: 0.875rem;
	border: 1px solid var(--border-color);
}

.tag.active {
	background-color: var(--primary-color);
	color: white;
	border-color: var(--primary-color);
}

.session-info {
	font-size: 0.875rem;
	color: var(--text-secondary);
	word-break: break-all;
	margin-bottom: var(--spacing);
	font-family: monospace;
	background-color: var(--bg-secondary);
	padding: 0.5rem;
	border-radius: 6px;
	border-left: 3px solid var(--primary-color);
}

/* Chat Container */
.chat-container {
	flex: 1;
	display: flex;
	flex-direction: column;
	background-color: var(--bg-primary);
	border-radius: 12px;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
	border: 1px solid var(--border-color);
	overflow: hidden;
}

.chat-header {
	padding: calc(var(--spacing) * 1.5);
	background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
	color: white;
	text-align: center;
	border-bottom: 1px solid var(--border-color);
}

.chat-header h1 {
	font-size: 1.5rem;
	margin-bottom: 0.25rem;
}

.chat-header p {
	font-size: 0.875rem;
	opacity: 0.9;
}

/* Chat Messages */
.chat-messages {
	flex: 1;
	overflow-y: auto;
	padding: calc(var(--spacing) * 1.5);
	display: flex;
	flex-direction: column;
	gap: var(--spacing);
	scroll-behavior: smooth;
}

.message {
	display: flex;
	animation: messageSlideIn 0.3s ease;
}

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

.user-message {
	justify-content: flex-end;
}

.assistant-message {
	justify-content: flex-start;
}

.message-bubble {
	max-width: 70%;
	padding: var(--spacing);
	border-radius: 12px;
	line-height: 1.5;
	word-wrap: break-word;
}

.user-message .message-bubble {
	background-color: var(--user-bubble);
	color: white;
	border-bottom-right-radius: 4px;
}

.assistant-message .message-bubble {
	background-color: var(--assistant-bubble);
	color: var(--text-primary);
	border-bottom-left-radius: 4px;
	border: 1px solid var(--border-color);
}

.message-bubble p {
	margin: 0;
	line-height: 1.6;
}

/* Markdown formatting in messages */
.message-bubble strong {
	font-weight: 600;
	color: inherit;
}

.message-bubble em {
	font-style: italic;
	color: inherit;
}

.message-bubble h1,
.message-bubble h2,
.message-bubble h3 {
	margin: 0.75rem 0 0.5rem 0;
	font-weight: 600;
	line-height: 1.4;
}

.message-bubble h1 {
	font-size: 1.25rem;
}

.message-bubble h2 {
	font-size: 1.1rem;
}

.message-bubble h3 {
	font-size: 1rem;
}

.message-bubble ul {
	margin: 0.5rem 0 0.5rem 1.5rem;
	padding: 0;
	list-style-position: outside;
}

.message-bubble li {
	margin-bottom: 0.25rem;
	text-align: left;
}

.message-bubble br {
	line-height: 1.2;
}

/* Quick Replies */
.quick-replies {
	padding: 0 calc(var(--spacing) * 1.5);
	margin-bottom: var(--spacing);
	display: flex;
	gap: 0.75rem;
	flex-wrap: wrap;
}

.quick-reply-btn {
	background-color: var(--bg-secondary);
	border: 1px solid var(--border-color);
	padding: 0.5rem 1rem;
	border-radius: 20px;
	font-size: 0.875rem;
	cursor: pointer;
	transition: var(--transition);
	color: var(--text-primary);
}

.quick-reply-btn:hover {
	background-color: var(--primary-color);
	color: white;
	border-color: var(--primary-color);
}

/* Chat Input Area */
.chat-input-area {
	padding: calc(var(--spacing) * 1.5);
	border-top: 1px solid var(--border-color);
	background-color: var(--bg-secondary);
}

.chat-form {
	display: flex;
	gap: var(--spacing);
	align-items: center;
}

#messageInput {
	flex: 1;
	padding: var(--spacing);
	border: 1px solid var(--border-color);
	border-radius: 8px;
	font-size: 1rem;
	font-family: inherit;
	transition: var(--transition);
}

#messageInput:focus {
	outline: none;
	border-color: var(--primary-color);
	box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.btn-primary,
.btn-secondary {
	padding: var(--spacing) calc(var(--spacing) * 1.5);
	border: none;
	border-radius: 8px;
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	transition: var(--transition);
	font-family: inherit;
}

.btn-primary {
	background-color: var(--primary-color);
	color: white;
}

.btn-primary:hover:not(:disabled) {
	background-color: #4338ca;
	transform: translateY(-2px);
	box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.btn-secondary {
	background-color: var(--bg-secondary);
	color: var(--text-primary);
	border: 1px solid var(--border-color);
	width: 100%;
	margin-top: var(--spacing);
}

.btn-secondary:hover {
	background-color: var(--border-color);
}

/* Loading Indicator */
.loading-indicator {
	text-align: center;
	padding: var(--spacing);
}

.loading-indicator span {
	display: inline-block;
	width: 8px;
	height: 8px;
	margin: 0 4px;
	background-color: var(--primary-color);
	border-radius: 50%;
	animation: bounce 1.4s infinite;
}

.loading-indicator span:nth-child(2) {
	animation-delay: 0.2s;
}

.loading-indicator span:nth-child(3) {
	animation-delay: 0.4s;
}

@keyframes bounce {
	0%, 80%, 100% {
		transform: scale(0);
		opacity: 0.5;
	}
	40% {
		transform: scale(1);
		opacity: 1;
	}
}

/* Modal */
.modal {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.5);
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 1000;
}

.modal-content {
	background-color: var(--bg-primary);
	border-radius: 12px;
	width: 90%;
	max-width: 500px;
	box-shadow: 0 20px 25px rgba(0, 0, 0, 0.15);
	animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
	from {
		transform: translateY(-50px);
		opacity: 0;
	}
	to {
		transform: translateY(0);
		opacity: 1;
	}
}

.modal-header {
	padding: calc(var(--spacing) * 1.5);
	border-bottom: 1px solid var(--border-color);
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.modal-header h2 {
	margin: 0;
	font-size: 1.25rem;
}

.close-btn {
	background: none;
	border: none;
	font-size: 1.5rem;
	cursor: pointer;
	color: var(--text-secondary);
	transition: var(--transition);
}

.close-btn:hover {
	color: var(--text-primary);
}

.modal-body {
	padding: calc(var(--spacing) * 1.5);
}

.form-group {
	margin-bottom: calc(var(--spacing) * 1.5);
}

.form-group label {
	display: block;
	margin-bottom: 0.5rem;
	font-weight: 600;
	color: var(--text-primary);
}

.form-group input {
	width: 100%;
	padding: var(--spacing);
	border: 1px solid var(--border-color);
	border-radius: 8px;
	font-size: 1rem;
	font-family: inherit;
	transition: var(--transition);
}

.form-group input:focus {
	outline: none;
	border-color: var(--primary-color);
	box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group small {
	display: block;
	margin-top: 0.5rem;
	color: var(--text-secondary);
	font-size: 0.875rem;
}

.modal-footer {
	padding: calc(var(--spacing) * 1.5);
	border-top: 1px solid var(--border-color);
	display: flex;
	gap: var(--spacing);
	justify-content: flex-end;
}

.modal-footer .btn-secondary {
	margin-top: 0;
	width: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
	.container {
		flex-direction: column;
		padding: 0;
		gap: 0;
	}

	.sidebar {
		width: 100%;
		border-radius: 0;
		max-height: 30vh;
		overflow-y: auto;
	}

	.chat-container {
		border-radius: 0;
	}

	.message-bubble {
		max-width: 85%;
	}

	.quick-replies {
		flex-direction: column;
	}

	.quick-reply-btn {
		width: 100%;
	}

	.chat-form {
		flex-direction: column;
	}

	.btn-primary {
		width: 100%;
	}
}

/* Scrollbar Styling */
::-webkit-scrollbar {
	width: 8px;
}

::-webkit-scrollbar-track {
	background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
	background: var(--border-color);
	border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
	background: var(--text-secondary);
}