.auth {
	grid-column: 1 / -1;
	display: flex;
	flex-direction: column;
	margin: -30px -50px;
	overflow-x: hidden;
}

.auth__section {
	padding: 80px 50px;
	display: flex;
	flex-direction: column;
	align-items: center;
	position: relative;
	overflow: hidden;
	isolation: isolate;
}

.auth__bg-anchor {
	position: relative;
}

.auth__bg-anchor::before {
	content: "漢字森";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-family: var(--font-jp);
	font-size: 18rem;
	font-weight: 600;
	line-height: 1;
	letter-spacing: 0.2em;
	color: var(--color-gray-100);
	user-select: none;
	pointer-events: none;
	white-space: nowrap;
	z-index: -1;
}

.auth__section .section-title {
	margin-bottom: var(--spacing-xs);
}

.auth__subtitle {
	margin-bottom: var(--spacing-xl);
}

.auth__content {
	width: 100%;
	max-width: 420px;
}

.auth__form-group--compact {
	margin-bottom: var(--spacing-sm);
}

.auth__form-group--compact label {
	margin-top: 0;
	margin-bottom: var(--spacing-xs);
	font-size: var(--size-sm);
}

.auth__hint {
	display: block;
	font-size: var(--size-sm);
	color: var(--color-gray-700);
	margin-top: var(--spacing-xs);
}

.auth__error {
	visibility: hidden;
	font-size: var(--size-xs);
	color: var(--color-momiji-500);
	margin-top: 4px;
}

.auth__error--visible {
	visibility: visible;
}

.auth__submit {
	margin-top: var(--spacing-md);
	width: 100%;
}

.auth__footer {
	text-align: center;
	margin-top: var(--spacing-lg);
	font-size: var(--size-sm);
	color: var(--color-gray-400);
}

.auth__footer a {
	color: var(--color-seiji-600);
	font-size: inherit;
	font-weight: inherit;
	text-decoration: underline;
	text-underline-offset: 2px;
}

.auth__footer a:hover,
.auth__footer a:active {
	color: var(--color-seiji-700);
}

@media (width <= 768px) {
	.auth {
		margin: -20px -12px;
	}

	.auth__section {
		padding: 48px 24px;
	}

	.auth__bg-anchor::before {
		font-size: 12rem;
	}
}

@media (width <= 480px) {
	.auth {
		margin: -20px -8px;
	}

	.auth__section {
		padding: 36px 16px;
	}

	.auth__bg-anchor::before {
		font-size: 8rem;
	}
}