/* --- Start: Book / Order section --- */
.book {
	padding: var(--space-8xl) 0;
	background: var(--surface-contrast);
	min-height: 100vh;
	color: var(--paper);
}

.book .claim {
	margin: 0 0 56px;
}

.book .head {
	display: grid;
	grid-template-columns: 1.2fr 1fr;
	gap: 64px;
	align-items: end;
	margin-bottom: 56px;
}

.book .head h2 {
	font-family: var(--ff-display);
	font-weight: 700;
	font-size: var(--fs-xlarge);
	letter-spacing: var(--ls-heading);
	line-height: 1.02;
	color: var(--paper);
	margin: 0;
}

.book .head p {
	font-size: var(--fs-small);
	line-height: 1.55;
	max-width: 480px;
	margin: 0;
}

.book .head p a {
	color: var(--yellow);
	border-bottom: 1px solid currentColor;
	padding-bottom: 1px;
}

.book .panel {
	display: grid;
	grid-template-columns: 1fr 1.2fr;
	gap: 32px;
	align-items: stretch;
}

.book .summary {
	background: var(--yellow);
	color: var(--ink);
	border-radius: var(--radius-lg);
	padding: var(--space-2xl);
	display: flex;
	flex-direction: column;
	gap: 18px;
}

.book .summary .stag {
	font-family: var(--ff-mono);
	font-size: var(--fs-xsmall);
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--muted);
}

.structure-product .book .summary .stag {
	align-self: flex-start;
	font-family: var(--ff-display);
	font-size: var(--fs-medium);
	font-weight: 700;
	line-height: 1;
	letter-spacing: 0;
	color: var(--yellow);
	background: var(--ink);
	padding: 8px 14px 10px;
	border-radius: var(--radius-md);
	text-transform: none;
}

.book .summary .old-price {
	align-self: flex-start;
	position: relative;
	font-family: var(--ff-display);
	font-weight: 700;
	font-size: var(--fs-large);
	line-height: 1;
	color: var(--muted);
	margin-top: auto;
}

.book .summary .old-price::after {
	content: '';
	position: absolute;
	left: -6%;
	right: -6%;
	top: 52%;
	height: 3px;
	background: var(--ink);
	transform: rotate(-4deg);
}

.book .summary h3 {
	font-family: var(--ff-display);
	font-weight: normal;
	font-size: var(--fs-medium);
	letter-spacing: var(--ls-heading-tight);
	line-height: 1.1;
	margin: 0;
	margin-top: 20px;
}

.book .summary .desc {
	font-size: var(--fs-small);
	line-height: 1.55;
	color: var(--ink);
}

.book .summary .price {
	margin-top: auto;
}

.book .summary .old-price + .price {
	margin-top: 0;
}

.book .form {
	background: var(--ink);
	border: 1px solid rgb(var(--line-rgb) / .1);
	border-radius: var(--radius-lg);
	padding: 36px;
}

.book .form h4 {
	font-family: var(--ff-display);
	font-size: var(--fs-medium);
	margin-bottom: 8px;
	letter-spacing: var(--ls-heading-tight);
	color: var(--paper);
}

.book .form .note {
	font-size: var(--fs-small);
	color: var(--line);
	line-height: 1.55;
	margin-bottom: 22px;
}

.book .optional-field {
	margin-bottom: 10px;
}

.book .optional-field-toggle {
	appearance: none;
	position: relative;
	width: 100%;
	height: 56px;
	border-radius: var(--radius-sm);
	background: var(--ink);
	color: var(--muted);
	font-family: inherit;
	font-size: var(--fs-small);
	letter-spacing: 0;
	padding: 0 18px;
	text-align: left;
	cursor: pointer;
	transition: background var(--motion-base), border-color var(--motion-base), color var(--motion-base);
}

.book .optional-field-toggle.has-tooltip {
	padding-right: 48px;
}

.book .optional-field-toggle:hover,
.book .optional-field-toggle:focus {
	border-color: var(--yellow);
	color: var(--line);
}

.book .optional-field-toggle .field-info {
	right: 14px;
	color: var(--paper);
}

.book .optional-field input {
	display: none;
}

.book .optional-field.is-open input {
	display: block;
}

.book .form > button {
	width: 100%;
	justify-content: center;
	height: 56px;
	font-size: var(--fs-small);
}

.book .form .tel {
	margin-top: 14px;
	font-size: var(--fs-xsmall);
	color: var(--muted);
	font-family: var(--ff-mono);
	letter-spacing: 0.05em;
	line-height: 1.6;
}

.book .form .tel a {
	color: var(--yellow);
	border-bottom: 1px solid currentColor;
	padding-bottom: 1px;
}

@media (max-width: 1024px) {
	.book .head, .book .panel { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 640px) {
	.book { padding-block: 64px; }
}
/* --- End: Book section --- */