/**
 * LinkNLock AI Chatbot – Frontend Styles
 * Premium jewelry-store chat widget.
 */

:root {
	--lnac-primary: #1a1a1a;
	--lnac-accent: #b8956a;
	--lnac-bg: #ffffff;
	--lnac-text: #111111;
	--lnac-text-muted: #6b6b6b;
	--lnac-border: #ebebeb;
	--lnac-user-bg: #1a1a1a;
	--lnac-user-text: #ffffff;
	--lnac-bot-bg: #f7f7f7;
	--lnac-bot-text: #1a1a1a;
	--lnac-shadow: 0 12px 48px rgba(0, 0, 0, 0.16);
	--lnac-shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.12);
	--lnac-radius: 18px;
	--lnac-radius-sm: 14px;
	--lnac-transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
	--lnac-z-index: 999999;
}

/* Isolate from theme button styles */
.lnac-chatbot button {
	font-family: inherit;
	line-height: 1;
	box-shadow: none;
	text-transform: none;
	letter-spacing: normal;
	min-height: unset;
}

.lnac-chatbot {
	position: fixed;
	z-index: var(--lnac-z-index);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
	font-size: 14px;
	line-height: 1.5;
	box-sizing: border-box;
}

.lnac-chatbot *,
.lnac-chatbot *::before,
.lnac-chatbot *::after {
	box-sizing: border-box;
}

.lnac-position-bottom-right {
	bottom: 28px;
	right: 28px;
}

.lnac-position-bottom-left {
	bottom: 28px;
	left: 28px;
}

/* Floating toggle button */
.lnac-chat-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 10px;
	padding: 0 22px 0 18px;
	height: 54px;
	background: var(--lnac-primary) !important;
	background-color: var(--lnac-primary) !important;
	color: #ffffff !important;
	border: 1px solid rgba(255, 255, 255, 0.08) !important;
	border-radius: 999px;
	cursor: pointer;
	box-shadow: var(--lnac-shadow-sm);
	transition: transform var(--lnac-transition), box-shadow var(--lnac-transition), background var(--lnac-transition);
	font-size: 14px;
	font-weight: 600;
	appearance: none;
	-webkit-appearance: none;
}

.lnac-chat-toggle:hover {
	transform: translateY(-2px);
	box-shadow: var(--lnac-shadow);
}

.lnac-chat-toggle:focus {
	outline: 2px solid var(--lnac-accent);
	outline-offset: 3px;
}

.lnac-chat-toggle svg {
	display: block;
	flex-shrink: 0;
}

.lnac-chat-toggle .lnac-icon-chat svg {
	stroke: #ffffff !important;
	fill: none !important;
}

.lnac-chat-toggle .lnac-icon-close svg {
	stroke: #ffffff !important;
	fill: none !important;
}

.lnac-toggle-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 22px;
	height: 22px;
}

.lnac-icon-close {
	display: none;
}

.lnac-chatbot.lnac-open .lnac-icon-chat {
	display: none;
}

.lnac-chatbot.lnac-open .lnac-icon-close {
	display: flex;
}

.lnac-chatbot.lnac-open .lnac-toggle-label {
	display: none;
}

.lnac-chatbot.lnac-open .lnac-chat-toggle {
	width: 54px;
	height: 54px;
	padding: 0;
	border-radius: 50%;
}

/* Chat window */
.lnac-chat-window {
	position: absolute;
	bottom: 68px;
	width: 390px;
	max-width: calc(100vw - 40px);
	height: 540px;
	max-height: calc(100vh - 110px);
	background: var(--lnac-bg);
	border-radius: var(--lnac-radius);
	box-shadow: var(--lnac-shadow);
	display: flex;
	flex-direction: column;
	overflow: hidden;
	opacity: 0;
	visibility: hidden;
	transform: translateY(12px) scale(0.97);
	transition: opacity var(--lnac-transition), transform var(--lnac-transition), visibility var(--lnac-transition);
	border: 1px solid var(--lnac-border);
}

.lnac-position-bottom-right .lnac-chat-window {
	right: 0;
}

.lnac-position-bottom-left .lnac-chat-window {
	left: 0;
}

.lnac-chatbot.lnac-open .lnac-chat-window {
	opacity: 1;
	visibility: visible;
	transform: translateY(0) scale(1);
}

/* Header – no close button, clean branding bar */
.lnac-chat-header {
	display: flex;
	align-items: center;
	padding: 14px 18px;
	background: linear-gradient(135deg, var(--lnac-primary) 0%, #2a2a2a 100%);
	color: #ffffff;
	flex-shrink: 0;
	border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.lnac-header-info {
	display: flex;
	align-items: center;
	gap: 12px;
	min-width: 0;
	flex: 1;
}

.lnac-header-logo {
	width: 40px;
	height: 40px;
	border-radius: 50%;
	object-fit: cover;
	border: 2px solid rgba(255, 255, 255, 0.2);
	background: rgba(255, 255, 255, 0.08);
	flex-shrink: 0;
}

.lnac-header-logo-placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	color: #ffffff;
}

.lnac-header-text {
	min-width: 0;
}

.lnac-header-name {
	display: block;
	font-weight: 600;
	font-size: 15px;
	line-height: 1.25;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.lnac-header-status {
	display: block;
	font-size: 12px;
	color: rgba(255, 255, 255, 0.72);
	margin-top: 2px;
}

.lnac-header-status::before {
	content: "";
	display: inline-block;
	width: 7px;
	height: 7px;
	background: #4ade80;
	border-radius: 50%;
	margin-right: 5px;
	vertical-align: middle;
	box-shadow: 0 0 0 2px rgba(74, 222, 128, 0.25);
}

/* Messages */
.lnac-chat-messages {
	flex: 1;
	overflow-y: auto;
	padding: 18px 16px;
	display: flex;
	flex-direction: column;
	gap: 10px;
	scroll-behavior: smooth;
	background: #fafafa;
}

.lnac-chat-messages::-webkit-scrollbar {
	width: 5px;
}

.lnac-chat-messages::-webkit-scrollbar-thumb {
	background: #d4d4d4;
	border-radius: 5px;
}

.lnac-message {
	max-width: 88%;
	padding: 11px 15px;
	border-radius: var(--lnac-radius-sm);
	word-wrap: break-word;
	animation: lnacFadeIn 0.22s ease;
	font-size: 13.5px;
	line-height: 1.55;
}

@keyframes lnacFadeIn {
	from {
		opacity: 0;
		transform: translateY(5px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.lnac-message-user {
	align-self: flex-end;
	background: var(--lnac-user-bg);
	color: var(--lnac-user-text);
	border-bottom-right-radius: 4px;
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.lnac-message-bot {
	align-self: flex-start;
	background: var(--lnac-bot-bg);
	color: var(--lnac-bot-text);
	border-bottom-left-radius: 4px;
	border: 1px solid var(--lnac-border);
}

.lnac-message-bot a {
	color: var(--lnac-accent);
	text-decoration: underline;
	font-weight: 500;
}

.lnac-message-bot a:hover {
	text-decoration: none;
}

.lnac-message-error {
	align-self: center;
	background: #fef2f2;
	color: #991b1b;
	font-size: 13px;
	text-align: center;
	max-width: 95%;
	border: 1px solid #fecaca;
}

/* Product cards */
.lnac-message-products {
	max-width: 100%;
	padding: 0;
	background: transparent;
	align-self: stretch;
}

.lnac-product-cards {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.lnac-product-card {
	display: block;
	text-decoration: none;
	color: inherit;
	border-radius: var(--lnac-radius-sm);
	overflow: hidden;
	border: 1px solid var(--lnac-border);
	background: #ffffff;
	transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.lnac-product-card:hover {
	transform: translateY(-1px);
	box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
	border-color: #d8d8d8;
	text-decoration: none;
}

.lnac-product-card-inner {
	display: flex;
	gap: 12px;
	padding: 10px;
}

.lnac-product-card-image {
	flex-shrink: 0;
	width: 68px;
	height: 68px;
	border-radius: 10px;
	overflow: hidden;
	background: #f0f0f0;
}

.lnac-product-card-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.lnac-product-card-body {
	display: flex;
	flex-direction: column;
	gap: 2px;
	min-width: 0;
	flex: 1;
}

.lnac-product-card-title {
	font-weight: 600;
	font-size: 13px;
	color: var(--lnac-text);
	line-height: 1.3;
}

.lnac-product-card-price {
	font-weight: 700;
	font-size: 14px;
	color: var(--lnac-primary);
}

.lnac-product-card-desc {
	font-size: 11.5px;
	color: var(--lnac-text-muted);
	line-height: 1.35;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.lnac-product-card-cta {
	font-size: 11.5px;
	color: var(--lnac-accent);
	font-weight: 600;
	margin-top: 4px;
}

/* Typing indicator */
.lnac-typing-indicator {
	display: none;
	padding: 0 16px 10px;
	gap: 5px;
	align-items: center;
	background: #fafafa;
}

.lnac-typing-indicator.lnac-visible {
	display: flex;
}

.lnac-typing-indicator span {
	width: 6px;
	height: 6px;
	background: #aaa;
	border-radius: 50%;
	animation: lnacBounce 1.2s infinite ease-in-out;
}

.lnac-typing-indicator span:nth-child(2) {
	animation-delay: 0.15s;
}

.lnac-typing-indicator span:nth-child(3) {
	animation-delay: 0.3s;
}

@keyframes lnacBounce {
	0%, 60%, 100% {
		transform: translateY(0);
		opacity: 0.4;
	}
	30% {
		transform: translateY(-5px);
		opacity: 1;
	}
}

/* Input area */
.lnac-chat-form {
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 14px 16px;
	border-top: 1px solid var(--lnac-border);
	background: #ffffff;
	flex-shrink: 0;
}

.lnac-chat-input {
	flex: 1;
	border: 1px solid var(--lnac-border);
	border-radius: 999px;
	padding: 11px 18px;
	font-size: 14px;
	outline: none;
	transition: border-color 0.2s, box-shadow 0.2s;
	font-family: inherit;
	background: #fafafa;
	color: var(--lnac-text);
}

.lnac-chat-input:focus {
	border-color: var(--lnac-accent);
	background: #ffffff;
	box-shadow: 0 0 0 3px rgba(184, 149, 106, 0.15);
}

.lnac-chat-input::placeholder {
	color: #9ca3af;
}

.lnac-chat-send {
	width: 42px;
	height: 42px;
	border: none !important;
	border-radius: 50%;
	background: var(--lnac-primary) !important;
	background-color: var(--lnac-primary) !important;
	color: #ffffff !important;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	transition: transform 0.2s, opacity 0.2s, background 0.2s;
	appearance: none;
	-webkit-appearance: none;
	padding: 0;
	min-width: 42px;
	min-height: 42px;
}

.lnac-chat-send svg,
.lnac-chat-send svg path {
	fill: #ffffff !important;
	color: #ffffff !important;
}

.lnac-chat-send:hover:not(:disabled) {
	transform: scale(1.06);
	background: #000000 !important;
}

.lnac-chat-send:disabled {
	opacity: 0.45;
	cursor: not-allowed;
}

/* Mobile */
@media (max-width: 480px) {
	.lnac-position-bottom-right,
	.lnac-position-bottom-left {
		bottom: 18px;
		right: 18px;
		left: 18px;
	}

	.lnac-position-bottom-left {
		right: auto;
	}

	.lnac-position-bottom-right {
		left: auto;
	}

	.lnac-chat-window {
		width: calc(100vw - 36px);
		height: min(72vh, 520px);
		bottom: 62px;
	}

	.lnac-position-bottom-right .lnac-chat-window,
	.lnac-position-bottom-left .lnac-chat-window {
		left: 0;
		right: 0;
	}

	.lnac-toggle-label {
		display: none;
	}

	.lnac-chat-toggle {
		width: 54px;
		height: 54px;
		padding: 0;
		border-radius: 50%;
	}

	.lnac-chatbot.lnac-open .lnac-chat-toggle {
		width: 50px;
		height: 50px;
	}
}