:root {
	--mtp-ai-bg: #ffffff;
	--mtp-ai-surface: #f4f6f8;
	--mtp-ai-border: #d8dee4;
	--mtp-ai-text: #1f2933;
	--mtp-ai-muted: #5f6b7a;
	--mtp-ai-accent: #0f766e;
	--mtp-ai-accent-hover: #0d5f59;
	--mtp-ai-user: #e8f1f0;
	--mtp-ai-shadow: 0 12px 40px rgba(15, 23, 42, 0.16);
	--mtp-ai-radius: 14px;
	--mtp-ai-font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.mtp-nexus-ai-widget {
	font-family: var(--mtp-ai-font);
	color: var(--mtp-ai-text);
	z-index: 99990;
}

.mtp-nexus-ai-widget--floating {
	position: fixed;
	right: 1.25rem;
	bottom: 1.25rem;
}

.mtp-nexus-ai-widget--embedded {
	position: relative;
	max-width: 420px;
	margin: 1rem 0;
}

.mtp-nexus-ai-widget--embedded .mtp-nexus-ai-widget__toggle {
	display: none;
}

.mtp-nexus-ai-widget--embedded .mtp-nexus-ai-widget__panel {
	position: relative;
	display: flex !important;
	width: 100%;
	height: 520px;
	max-height: 70vh;
	box-shadow: var(--mtp-ai-shadow);
}

.mtp-nexus-ai-widget__toggle {
	width: 3.5rem;
	height: 3.5rem;
	border: 0;
	border-radius: 999px;
	background: var(--mtp-ai-accent);
	color: #fff;
	box-shadow: var(--mtp-ai-shadow);
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0;
	transition: background 0.2s ease, transform 0.2s ease;
}

.mtp-nexus-ai-widget__toggle:hover,
.mtp-nexus-ai-widget__toggle:focus-visible {
	background: var(--mtp-ai-accent-hover);
	transform: translateY(-1px);
	outline: none;
}

.mtp-nexus-ai-widget__toggle-icons {
	display: flex;
	align-items: center;
	justify-content: center;
	line-height: 0;
}

.mtp-nexus-ai-widget__icon {
	display: block;
	width: 1.25rem;
	height: 1.25rem;
	flex-shrink: 0;
	pointer-events: none;
	overflow: visible;
	color: inherit;
}

.mtp-nexus-ai-widget__toggle .mtp-nexus-ai-widget__icon {
	width: 1.625rem; /* ~26px — larger, still inside 3.5rem toggle */
	height: 1.625rem;
}

/* Outline when closed; filled when open — driven by existing aria-expanded. */
.mtp-nexus-ai-widget__toggle[aria-expanded="true"] .mtp-nexus-ai-widget__icon--chat-outline {
	display: none;
}

.mtp-nexus-ai-widget__toggle:not([aria-expanded="true"]) .mtp-nexus-ai-widget__icon--chat-filled {
	display: none;
}

.mtp-nexus-ai-widget__panel {
	position: absolute;
	right: 0;
	bottom: calc(100% + 0.75rem);
	width: min(420px, calc(100vw - 2rem));
	height: min(640px, calc(100vh - 6rem));
	background: var(--mtp-ai-bg);
	border: 1px solid var(--mtp-ai-border);
	border-radius: var(--mtp-ai-radius);
	box-shadow: var(--mtp-ai-shadow);
	display: flex;
	flex-direction: column;
	overflow: hidden;
}

.mtp-nexus-ai-widget__panel[hidden] {
	display: none !important;
}

.mtp-nexus-ai-widget__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 0.85rem 1rem;
	border-bottom: 1px solid var(--mtp-ai-border);
	background: var(--mtp-ai-surface);
}

.mtp-nexus-ai-widget__title {
	margin: 0;
	font-size: 1rem;
	font-weight: 600;
}

.mtp-nexus-ai-widget__header-actions {
	display: flex;
	align-items: center;
	gap: 0.35rem;
}

.mtp-nexus-ai-widget__reset,
.mtp-nexus-ai-widget__close {
	border: 0;
	background: transparent;
	color: var(--mtp-ai-muted);
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.25rem;
	height: 2.25rem;
	padding: 0;
	border-radius: 8px;
	line-height: 0;
}

.mtp-nexus-ai-widget__reset:hover,
.mtp-nexus-ai-widget__close:hover,
.mtp-nexus-ai-widget__reset:focus-visible,
.mtp-nexus-ai-widget__close:focus-visible {
	background: rgba(15, 118, 110, 0.08);
	color: var(--mtp-ai-accent);
	outline: none;
}

.mtp-nexus-ai-widget__icon--new-conversation {
	width: 1.375rem; /* 22px — match Close visual weight */
	height: 1.375rem;
}

.mtp-nexus-ai-widget__messages {
	flex: 1;
	overflow-y: auto;
	padding: 1rem;
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
	background: linear-gradient(180deg, #fbfcfd 0%, #ffffff 100%);
}

.mtp-nexus-ai-widget__message {
	max-width: 92%;
	padding: 0.75rem 0.9rem;
	border-radius: 12px;
	line-height: 1.45;
	font-size: 0.95rem;
	word-break: break-word;
}

.mtp-nexus-ai-widget__message--user {
	align-self: flex-end;
	background: var(--mtp-ai-user);
	border: 1px solid #cfe3e1;
}

.mtp-nexus-ai-widget__message--assistant {
	align-self: flex-start;
	background: #fff;
	border: 1px solid var(--mtp-ai-border);
}

.mtp-nexus-ai-widget__message--error {
	align-self: stretch;
	background: #fff5f5;
	border: 1px solid #f1caca;
	color: #8a1f1f;
}

.mtp-nexus-ai-widget__message--loading {
	align-self: flex-start;
	color: var(--mtp-ai-muted);
	font-style: italic;
}

.mtp-nexus-ai-widget__cards {
	display: grid;
	gap: 0.65rem;
	margin-top: 0.65rem;
}

.mtp-nexus-ai-widget__card {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 0.5rem;
	align-items: stretch;
	padding: 0.65rem;
	border: 1px solid var(--mtp-ai-border);
	border-radius: 12px;
	background: #fff;
	color: inherit;
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.mtp-nexus-ai-widget__card:hover,
.mtp-nexus-ai-widget__card:focus-within {
	border-color: var(--mtp-ai-accent);
	box-shadow: 0 4px 16px rgba(15, 118, 110, 0.12);
}

.mtp-nexus-ai-widget__card-main {
	display: grid;
	grid-template-columns: 72px 1fr;
	gap: 0.75rem;
	min-width: 0;
	text-decoration: none;
	color: inherit;
	border-radius: 10px;
}

.mtp-nexus-ai-widget__card-main:focus-visible {
	outline: 2px solid var(--mtp-ai-accent);
	outline-offset: 2px;
}

.mtp-nexus-ai-widget__card-thumb {
	width: 72px;
	height: 72px;
	border-radius: 10px;
	background: var(--mtp-ai-surface);
	object-fit: cover;
}

.mtp-nexus-ai-widget__card-body {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
	min-width: 0;
}

.mtp-nexus-ai-widget__card-title {
	font-weight: 600;
	font-size: 0.92rem;
}

.mtp-nexus-ai-widget__card-meta,
.mtp-nexus-ai-widget__card-price {
	font-size: 0.85rem;
	color: var(--mtp-ai-muted);
}

.mtp-nexus-ai-widget__card-actions {
	display: flex;
	align-items: center;
	justify-content: center;
}

.mtp-nexus-ai-widget__cart-btn {
	position: relative;
	width: 2.55rem;
	height: 2.55rem;
	border: 1px solid var(--mtp-ai-accent);
	border-radius: 999px;
	background: var(--mtp-ai-accent);
	color: #fff;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 0;
	transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, opacity 0.15s ease;
}

.mtp-nexus-ai-widget__cart-btn:hover:not(:disabled),
.mtp-nexus-ai-widget__cart-btn:focus-visible:not(:disabled) {
	background: var(--mtp-ai-accent-hover);
	border-color: var(--mtp-ai-accent-hover);
	color: #fff;
	outline: none;
}

.mtp-nexus-ai-widget__cart-btn:disabled,
.mtp-nexus-ai-widget__cart-btn--disabled {
	opacity: 0.45;
	cursor: not-allowed;
}

.mtp-nexus-ai-widget__cart-btn--loading {
	opacity: 0.7;
	cursor: wait;
}

.mtp-nexus-ai-widget__cart-btn--loading .mtp-nexus-ai-widget__cart-icon {
	opacity: 0.35;
}

.mtp-nexus-ai-widget__cart-btn--success {
	background: var(--mtp-ai-accent);
	border-color: var(--mtp-ai-accent);
	color: #fff;
}

.mtp-nexus-ai-widget__cart-btn--error {
	background: #fff;
	border-color: #b42318;
	color: #b42318;
}

.mtp-nexus-ai-widget__cart-icon {
	display: block;
	width: 20px;
	height: 20px;
	flex-shrink: 0;
	pointer-events: none;
	overflow: visible;
}

.mtp-nexus-ai-widget__cart-btn--success .mtp-nexus-ai-widget__cart-icon,
.mtp-nexus-ai-widget__cart-btn--error .mtp-nexus-ai-widget__cart-icon {
	visibility: hidden;
}

.mtp-nexus-ai-widget__cart-feedback {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 0.95rem;
	font-weight: 700;
	background: inherit;
	border-radius: inherit;
	pointer-events: none;
	color: inherit;
}

.mtp-nexus-ai-widget__cart-feedback[hidden] {
	display: none !important;
}

.mtp-nexus-ai-widget__form {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 0.5rem;
	padding: 0.85rem;
	border-top: 1px solid var(--mtp-ai-border);
	background: #fff;
}

.mtp-nexus-ai-widget__input {
	width: 100%;
	resize: none;
	border: 1px solid var(--mtp-ai-border);
	border-radius: 10px;
	padding: 0.65rem 0.75rem;
	font: inherit;
	min-height: 2.75rem;
}

.mtp-nexus-ai-widget__input:focus-visible {
	outline: 2px solid rgba(15, 118, 110, 0.35);
	border-color: var(--mtp-ai-accent);
}

.mtp-nexus-ai-widget__send {
	border: 0;
	border-radius: 10px;
	background: var(--mtp-ai-accent);
	color: #fff;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.75rem;
	min-width: 2.75rem;
	height: 2.75rem;
	padding: 0;
	cursor: pointer;
	line-height: 0;
}

.mtp-nexus-ai-widget__send:hover,
.mtp-nexus-ai-widget__send:focus-visible {
	background: var(--mtp-ai-accent-hover);
	outline: none;
}

.mtp-nexus-ai-widget__send:disabled {
	opacity: 0.55;
	cursor: not-allowed;
}

.mtp-nexus-ai-widget .screen-reader-text {
	border: 0;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	width: 1px;
	word-wrap: normal !important;
}

@media (max-width: 640px) {
	.mtp-nexus-ai-widget--floating {
		right: 0.75rem;
		bottom: 0.75rem;
	}

	.mtp-nexus-ai-widget__panel {
		width: calc(100vw - 1.5rem);
		height: min(80vh, 640px);
	}
}