/* Hỗ trợ khách hàng — Unified Customer Support Chat */

.support-chat-widget {
	position: fixed;
	right: 20px;
	bottom: 20px;
	z-index: 9999;
	font-family: var(--wf-font, 'DM Sans', system-ui, sans-serif);
}

.support-chat-toggle {
	width: 56px;
	height: 56px;
	border-radius: 50%;
	border: none;
	background: var(--wf-accent, #9a7b2f);
	color: #fff;
	font-size: 22px;
	box-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: transform 0.15s ease;
}

.support-chat-toggle:hover {
	transform: scale(1.05);
}

.support-chat-widget.is-open .support-chat-toggle {
	display: none;
}

.support-chat-panel {
	position: fixed;
	right: 20px;
	bottom: 20px;
	width: 380px;
	max-width: calc(100vw - 24px);
	height: 560px;
	max-height: calc(100vh - 40px);
	background: var(--wf-bg, #fff);
	border: 1px solid var(--wf-border, rgba(0, 0, 0, 0.08));
	border-radius: 14px;
	box-shadow: 0 14px 40px rgba(0, 0, 0, 0.18);
	display: flex;
	flex-direction: column;
	overflow: hidden;
}

.support-chat-panel[hidden] {
	display: none;
}

.support-chat-panel__header {
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 14px;
	background: var(--wf-accent, #9a7b2f);
	color: #fff;
	flex-shrink: 0;
}

.support-chat-panel__avatar {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.2);
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	font-size: 16px;
}

.support-chat-panel__title {
	display: flex;
	flex-direction: column;
	line-height: 1.25;
	flex-grow: 1;
	min-width: 0;
}

.support-chat-panel__title strong {
	font-size: 14px;
}

.support-chat-panel__status {
	font-size: 11px;
	opacity: 0.92;
	display: flex;
	align-items: center;
	gap: 4px;
}

.support-chat-panel__dot {
	width: 7px;
	height: 7px;
	border-radius: 50%;
	background: #4ade80;
	display: inline-block;
}

.support-chat-panel__close {
	background: transparent;
	border: none;
	color: #fff;
	font-size: 16px;
	cursor: pointer;
	opacity: 0.85;
	flex-shrink: 0;
}

.support-chat-panel__messages {
	flex: 1;
	overflow-y: auto;
	padding: 14px;
	display: flex;
	flex-direction: column;
	gap: 12px;
	background: var(--wf-bg-elevated, #f8f8f9);
}

.support-chat-msg {
	display: flex;
	gap: 8px;
	max-width: 100%;
}

.support-chat-msg--customer {
	flex-direction: row-reverse;
}

.support-chat-msg__avatar {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	font-size: 12px;
	background: #fff;
	border: 1px solid var(--wf-border, rgba(0, 0, 0, 0.08));
	color: var(--wf-muted, #5a5a5a);
}

.support-chat-msg--customer .support-chat-msg__avatar {
	background: var(--wf-accent, #9a7b2f);
	color: #fff;
	border-color: transparent;
}

.support-chat-msg--staff .support-chat-msg__avatar {
	background: #059669;
	color: #fff;
	border-color: transparent;
}

.support-chat-msg--ai .support-chat-msg__avatar {
	background: #6366f1;
	color: #fff;
	border-color: transparent;
}

.support-chat-msg__body {
	max-width: calc(100% - 40px);
	display: flex;
	flex-direction: column;
	gap: 2px;
}

.support-chat-msg--customer .support-chat-msg__body {
	align-items: flex-end;
}

.support-chat-msg__label {
	font-size: 10px;
	color: var(--wf-muted, #5a5a5a);
	padding: 0 4px;
}

.support-chat-msg__bubble {
	padding: 9px 12px;
	border-radius: 12px;
	font-size: 13.5px;
	line-height: 1.45;
	word-break: break-word;
	white-space: pre-wrap;
}

.support-chat-msg--customer .support-chat-msg__bubble {
	background: var(--wf-accent, #9a7b2f);
	color: #fff;
	border-bottom-right-radius: 4px;
}

.support-chat-msg--ai .support-chat-msg__bubble {
	background: #fff;
	color: var(--wf-text, #141414);
	border: 1px solid var(--wf-border, rgba(0, 0, 0, 0.08));
	border-bottom-left-radius: 4px;
}

.support-chat-msg--staff .support-chat-msg__bubble {
	background: #ecfdf5;
	color: #065f46;
	border: 1px solid #a7f3d0;
	border-bottom-left-radius: 4px;
}

.support-chat-msg--system .support-chat-msg__bubble,
.support-chat-msg__bubble--connecting {
	background: #fff7ed;
	color: #9a3412;
	border: 1px dashed #fdba74;
	text-align: center;
	width: 100%;
}

.support-chat-msg--system {
	justify-content: center;
}

.support-chat-msg__time {
	font-size: 10px;
	color: var(--wf-muted, #5a5a5a);
	padding: 0 4px;
}

.support-chat-msg--typing .support-chat-msg__bubble {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	background: #fff;
	border: 1px solid var(--wf-border, rgba(0, 0, 0, 0.08));
}

.support-chat-typing-label {
	font-size: 12px;
	color: var(--wf-muted, #5a5a5a);
}

.support-chat-msg--typing span:not(.support-chat-typing-label) {
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--wf-muted, #5a5a5a);
	opacity: 0.5;
	animation: support-chat-typing 1s infinite ease-in-out;
}

.support-chat-msg--typing span:nth-child(3) { animation-delay: 0.15s; }
.support-chat-msg--typing span:nth-child(4) { animation-delay: 0.3s; }

@keyframes support-chat-typing {
	0%, 80%, 100% { opacity: 0.25; transform: translateY(0); }
	40% { opacity: 1; transform: translateY(-2px); }
}

.support-chat-product {
	margin-bottom: 6px;
}

.support-chat-product a {
	color: inherit;
	text-decoration: underline;
}

.support-chat-panel__quick-replies {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	padding: 0 14px 10px;
	background: var(--wf-bg-elevated, #f8f8f9);
	flex-shrink: 0;
}

.support-chat-quick-reply {
	border: 1px solid var(--wf-border, rgba(0, 0, 0, 0.08));
	background: #fff;
	color: var(--wf-text, #141414);
	border-radius: 999px;
	padding: 5px 11px;
	font-size: 12px;
	cursor: pointer;
	white-space: nowrap;
}

.support-chat-quick-reply:hover {
	border-color: var(--wf-accent, #9a7b2f);
	color: var(--wf-accent, #9a7b2f);
}

.support-chat-quick-reply--handoff {
	border-color: var(--wf-accent, #9a7b2f);
	color: var(--wf-accent, #9a7b2f);
	background: rgba(154, 123, 47, 0.08);
	font-weight: 600;
}

.support-chat-panel__form {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 10px;
	border-top: 1px solid var(--wf-border, rgba(0, 0, 0, 0.08));
	background: var(--wf-bg, #fff);
	flex-shrink: 0;
}

.support-chat-panel__input {
	flex: 1;
	border: 1px solid var(--wf-border, rgba(0, 0, 0, 0.08));
	border-radius: 999px;
	padding: 9px 14px;
	font-size: 13.5px;
	font-family: inherit;
	outline: none;
}

.support-chat-panel__input:focus {
	border-color: var(--wf-accent, #9a7b2f);
}

.support-chat-panel__send {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	border: none;
	background: var(--wf-accent, #9a7b2f);
	color: #fff;
	cursor: pointer;
	flex-shrink: 0;
	display: flex;
	align-items: center;
	justify-content: center;
}

@media (max-width: 480px) {
	.support-chat-panel {
		right: 10px;
		left: 10px;
		bottom: 10px;
		width: auto;
		height: calc(100vh - 20px);
	}
}