.msai-external-support,
.msai-external-support-page {
	--msai-ext-bg: linear-gradient(180deg, #eef6ff 0%, #f9fcff 100%);
	--msai-ext-card: #ffffff;
	--msai-ext-border: #d8e6f4;
	--msai-ext-border-strong: #a9c6e5;
	--msai-ext-text: #0f2742;
	--msai-ext-muted: #5f748d;
	--msai-ext-primary: #0b3261;
	--msai-ext-primary-hover: #14457e;
	--msai-ext-soft: #edf5ff;
	--msai-ext-shadow: 0 20px 50px rgba(15, 39, 66, 0.12);
}

.msai-external-support {
	padding: 32px 16px;
}

.msai-external-support__shell {
	max-width: 840px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 20px;
	align-items: stretch;
}

.msai-external-support__intro,
.msai-external-support__card {
	border: 1px solid var(--msai-ext-border);
	border-radius: 28px;
	background: var(--msai-ext-card);
	box-shadow: var(--msai-ext-shadow);
}

.msai-external-support__intro {
	padding: 28px;
	background: var(--msai-ext-bg);
}

.msai-external-support__eyebrow {
	margin: 0 0 10px;
	font-size: 12px;
	font-weight: 800;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--msai-ext-primary);
}

.msai-external-support__intro h2,
.msai-external-support__thread-head h3 {
	margin: 0 0 12px;
	font-size: clamp(1.8rem, 3vw, 2.4rem);
	line-height: 1.05;
	color: var(--msai-ext-text);
}

.msai-external-support__intro p,
.msai-external-support__thread-head p,
.msai-external-support__meta {
	margin: 0;
	color: var(--msai-ext-muted);
	line-height: 1.6;
}

.msai-external-support__card {
	padding: 30px;
	display: grid;
	gap: 18px;
}

.msai-external-support__notice {
	padding: 14px 16px;
	border-radius: 16px;
	font-weight: 600;
}

.msai-external-support__notice.is-success {
	background: #e7f7ee;
	color: #115c37;
}

.msai-external-support__notice.is-error {
	background: #fff1f1;
	color: #8f1f29;
}

.msai-external-support__form,
.msai-external-support__grid,
.msai-external-support__timeline {
	display: grid;
	gap: 16px;
}

.msai-external-support__grid {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

.msai-external-support__field {
	display: grid;
	gap: 8px;
}

.msai-external-support__field--wide {
	grid-column: 1 / -1;
}

.msai-external-support__field span {
	font-size: 0.92rem;
	font-weight: 700;
	color: var(--msai-ext-text);
}

.msai-external-support__field input,
.msai-external-support__field select,
.msai-external-support__field textarea,
.msai-external-support__form button {
	font: inherit;
	box-shadow: none;
}

.msai-external-support__field input,
.msai-external-support__field select,
.msai-external-support__field textarea {
	width: 100%;
	padding: 15px 16px;
	border: 1px solid var(--msai-ext-border);
	border-radius: 18px;
	background: #fff;
	color: var(--msai-ext-text);
	transition: border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.msai-external-support__field input:focus,
.msai-external-support__field select:focus,
.msai-external-support__field textarea:focus {
	outline: none;
	border-color: var(--msai-ext-border-strong);
	box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.14);
}

.msai-external-support__actions {
	display: grid;
	gap: 12px;
}

.msai-external-support__primary {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 54px;
	padding: 0 22px;
	border: 0;
	border-radius: 18px;
	background: var(--msai-ext-primary);
	color: #fff;
	font-size: 0.98rem;
	font-weight: 800;
	text-decoration: none;
	cursor: pointer;
	transition: background 140ms ease, transform 140ms ease, box-shadow 140ms ease;
	box-shadow: 0 16px 30px rgba(11, 50, 97, 0.2);
}

.msai-external-support__primary:hover,
.msai-external-support__primary:focus-visible {
	background: var(--msai-ext-primary-hover);
	transform: translateY(-1px);
	outline: none;
}

.msai-external-support__honeypot {
	position: absolute;
	left: -9999px;
	width: 1px;
	height: 1px;
	overflow: hidden;
}

.msai-external-support__thread-head {
	display: grid;
	gap: 8px;
	padding-bottom: 8px;
	border-bottom: 1px solid var(--msai-ext-border);
}

.msai-external-support__timeline {
	gap: 14px;
}

.msai-external-support__message {
	display: grid;
	gap: 10px;
	padding: 18px;
	border-radius: 20px;
	border: 1px solid var(--msai-ext-border);
	background: #fff;
}

.msai-external-support__message.is-admin {
	background: var(--msai-ext-soft);
}

.msai-external-support__message header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	color: var(--msai-ext-muted);
	font-size: 0.85rem;
}

.msai-external-support__fallback {
	padding: 18px;
	border-radius: 18px;
	background: #fff7e8;
	border: 1px solid #f3d7a7;
	color: #7a4d08;
}

@media (max-width: 900px) {
	.msai-external-support {
		padding: 28px 14px;
	}

	.msai-external-support__shell {
		max-width: 100%;
	}
}

@media (max-width: 640px) {
	.msai-external-support__grid {
		grid-template-columns: 1fr;
	}

	.msai-external-support__intro,
	.msai-external-support__card {
		padding: 22px;
		border-radius: 22px;
	}

	.msai-external-support__primary {
		width: 100%;
	}
}