.epoch-ai-chat-root {
	max-width: 720px;
	margin: 0 auto;
}

.epoch-ai-chat {
	display: flex;
	flex-direction: column;
	height: 78vh;
	min-height: 560px;
	background: rgba(10, 40, 20, 0.92);
	border: 1px solid rgba(44, 255, 124, 0.25);
	border-radius: 16px;
	overflow: hidden;
	box-shadow: 0 15px 30px rgba(0, 0, 0, 0.35);
	font-family: "Noto Sans TC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.epoch-ai-chat-toolbar {
	display: flex;
	justify-content: flex-end;
	padding: 8px 12px;
	border-bottom: 1px solid rgba(44, 255, 124, 0.25);
	background: rgba(4, 12, 8, 0.88);
}

.epoch-ai-chat-lang-toggle {
	background: rgba(8, 22, 13, 0.8);
	border: 1px solid rgba(44, 255, 124, 0.32);
	color: #7dffb1;
	border-radius: 999px;
	padding: 4px 12px;
	font-size: 12px;
	font-weight: 600;
	cursor: pointer;
}

.epoch-ai-chat-lang-toggle:hover {
	color: #072511;
	background: linear-gradient(90deg, #2cff7c, #67ff9f);
	border-color: transparent;
}

.epoch-ai-chat-messages {
	flex: 1;
	overflow-y: auto;
	padding: 16px;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.epoch-ai-chat-msg {
	display: flex;
}

.epoch-ai-chat-msg--user {
	justify-content: flex-end;
}

.epoch-ai-chat-msg--assistant {
	justify-content: flex-start;
}

.epoch-ai-chat-bubble {
	max-width: 80%;
	padding: 10px 14px;
	border-radius: 14px;
	line-height: 1.5;
	white-space: pre-wrap;
	word-break: break-word;
	font-size: 14px;
}

.epoch-ai-chat-msg--user .epoch-ai-chat-bubble {
	background: rgba(44, 255, 124, 0.22);
	color: #eafff2;
	border: 1px solid rgba(44, 255, 124, 0.35);
	border-bottom-right-radius: 4px;
}

.epoch-ai-chat-msg--assistant .epoch-ai-chat-bubble {
	background: rgba(130, 255, 181, 0.12);
	color: #d8ffe5;
	border: 1px solid rgba(44, 255, 124, 0.15);
	border-bottom-left-radius: 4px;
}

.epoch-ai-chat-msg--thinking .epoch-ai-chat-bubble {
	color: #8dd9a5;
	font-style: italic;
}

.epoch-ai-chat-form {
	display: flex;
	gap: 8px;
	padding: 12px;
	border-top: 1px solid rgba(44, 255, 124, 0.25);
	background: rgba(4, 12, 8, 0.88);
}

.epoch-ai-chat-input {
	flex: 1;
	resize: none;
	border-radius: 10px;
	border: 1px solid rgba(44, 255, 124, 0.35);
	background: rgba(6, 15, 9, 0.88);
	color: #d8ffe5;
	padding: 10px 12px;
	font-size: 14px;
	max-height: 120px;
	font-family: inherit;
}

.epoch-ai-chat-input:focus {
	outline: none;
	border-color: #2cff7c;
}

.epoch-ai-chat-send {
	background: linear-gradient(90deg, #21d46a, #74ffab);
	color: #04260f;
	border: none;
	border-radius: 10px;
	padding: 0 18px;
	font-size: 14px;
	font-weight: 700;
	cursor: pointer;
}

.epoch-ai-chat-send:disabled {
	opacity: 0.6;
	cursor: default;
}

.epoch-ai-chat-send:hover:not(:disabled) {
	filter: brightness(1.08);
}

.epoch-ai-chat-locked {
	max-width: 560px;
	margin: 40px auto;
	padding: 24px;
	text-align: center;
	background: rgba(10, 40, 20, 0.92);
	border: 1px solid rgba(44, 255, 124, 0.25);
	border-radius: 16px;
	color: #d8ffe5;
	font-family: "Noto Sans TC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.epoch-ai-chat-cta {
	display: inline-block;
	margin-top: 8px;
	background: linear-gradient(90deg, #21d46a, #74ffab);
	color: #04260f;
	text-decoration: none;
	padding: 10px 20px;
	border-radius: 10px;
	font-size: 14px;
	font-weight: 700;
}

.epoch-ai-chat-cta:hover {
	filter: brightness(1.08);
}