/* ===== ヘッダー ===== */
.site-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 100;
	height: var(--header-height);
	background: var(--header-bg);
	backdrop-filter: var(--header-blur);
	-webkit-backdrop-filter: var(--header-blur);
	border-bottom: 1px solid var(--header-border);
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
	padding-inline: 16px;
}

/* ===== ロゴ ===== */
.site-logo {
	display: flex;
	align-items: center;
	gap: 12px;
	text-decoration: none;
}

.site-logo__icon {
	width: 40px;
	height: 40px;
	overflow: hidden;
	flex-shrink: 0;
}

.site-logo__icon img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.site-logo__placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border-radius: var(--radius-pill);
	background: linear-gradient(135deg, var(--color-primary-yellow), var(--color-primary-orange));
	color: #fff;
	font-size: 20px;
	font-weight: 900;
	line-height: 1;
}

.site-logo__text {
	display: flex;
	flex-direction: column;
	gap: 3px;
}

.site-logo__name {
	display: block;
	font-family: 'Dela Gothic One', var(--font-sans);
	font-size: 24px;
	font-weight: 400;
	line-height: 1;
	letter-spacing: 0.05em;
	color: #292524;
}

.site-logo__sub {
	display: block;
	font-family: 'Roboto', var(--font-sans);
	font-size: 11px;
	font-weight: 400;
	line-height: 1;
	letter-spacing: 0.1em;
	color: #A8A29E;
}

/* ===== デスクトップナビ（デフォルト非表示） ===== */
.header-nav {
	display: none;
	align-items: center;
	gap: 28px;
}

.header-nav__link {
	font-family: 'Roboto', var(--font-sans);
	font-size: 16px;
	line-height: 20px;
	color: #57534E;
	text-decoration: none;
	transition: color var(--transition-base);
}

.header-nav__link:hover {
	color: var(--color-primary-orange);
}

/* ===== デスクトップCTAボタン（デフォルト非表示） ===== */
.header-cta {
	display: none;
	align-items: center;
	padding: 8px 20px;
	background: var(--color-primary-orange);
	color: #fff;
	font-family: 'Roboto', var(--font-sans);
	font-size: 14px;
	font-weight: 700;
	line-height: 16px;
	letter-spacing: 0.025em;
	border-radius: var(--radius-pill);
	text-decoration: none;
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
	white-space: nowrap;
	transition: opacity var(--transition-base);
}

.header-cta:hover {
	opacity: 0.85;
}

/* ===== ハンバーガーボタン ===== */
.drawer-toggle {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap: 6px;
	width: 32px;
	height: 32px;
	padding: 0;
	background: none;
	border: none;
	cursor: pointer;
}

.drawer-toggle__bar {
	display: block;
	width: 20px;
	height: 2px;
	background: #292524;
	border-radius: 2px;
	transition: transform var(--transition-base), opacity var(--transition-base);
}

.drawer-toggle[aria-expanded="true"] .drawer-toggle__bar:nth-child(1) {
	transform: translateY(8px) rotate(45deg);
}
.drawer-toggle[aria-expanded="true"] .drawer-toggle__bar:nth-child(2) {
	opacity: 0;
	transform: scaleX(0);
}
.drawer-toggle[aria-expanded="true"] .drawer-toggle__bar:nth-child(3) {
	transform: translateY(-8px) rotate(-45deg);
}

/* ===== デスクトップ切り替え ===== */
@media (min-width: 900px) {
	.header-inner {
		max-width: 1280px;
		margin-inline: auto;
		padding-inline: 32px;
	}

	.header-nav {
		display: flex;
	}

	.header-cta {
		display: flex;
	}

	.drawer-toggle {
		display: none;
	}
}

/* ===== ドロワーメニュー ===== */
.drawer-menu {
	position: fixed;
	top: 0;
	right: 0;
	width: 280px;
	height: 100%;
	z-index: 200;
	background: var(--color-bg);
	padding: 24px 24px 40px;
	transform: translateX(100%);
	transition: transform var(--transition-slow);
	overflow-y: auto;
	box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
}

.drawer-menu.is-open {
	transform: translateX(0);
}

.drawer-close {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	margin-left: auto;
	margin-bottom: 16px;
	background: none;
	border: none;
	cursor: pointer;
	color: var(--color-text-muted);
	transition: color var(--transition-base);
}

.drawer-close:hover {
	color: var(--color-text);
}

.drawer-nav-list {
	list-style: none;
}

.drawer-nav-list li + li {
	border-top: 1px solid var(--color-border);
}

.drawer-nav-list a {
	display: block;
	padding: 16px 0;
	font-size: var(--font-size-sm);
	font-weight: 500;
	color: var(--color-text);
	text-decoration: none;
	transition: color var(--transition-base);
}

.drawer-nav-list a:hover {
	color: var(--color-primary-orange);
}

/* ===== オーバーレイ ===== */
.drawer-overlay {
	position: fixed;
	inset: 0;
	z-index: 150;
	background: rgba(0, 0, 0, 0.4);
	opacity: 0;
	pointer-events: none;
	transition: opacity var(--transition-slow);
}

.drawer-overlay.is-visible {
	opacity: 1;
	pointer-events: auto;
}