/**
 * Musubime — メインスタイル
 */

:root {
	--color-primary: #8b2942;
	--color-primary-dark: #6d1f34;
	--color-accent: #c9a227;
	--color-bg: #faf7f2;
	--color-bg-alt: #f0ebe3;
	--color-text: #2c2c2c;
	--color-text-muted: #666;
	--color-border: #ddd5c8;
	--color-white: #fff;

	--font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
	--font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;

	--container-width: 1120px;
	--header-height: 72px;
	--radius: 4px;
	--shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
	--transition: 0.2s ease;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	font-size: 16px;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: var(--font-sans);
	font-size: 1rem;
	line-height: 1.75;
	color: var(--color-text);
	background-color: var(--color-bg);
	-webkit-font-smoothing: antialiased;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color var(--transition);
}

a:hover,
a:focus {
	color: var(--color-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
	font-family: var(--font-serif);
	font-weight: 600;
	line-height: 1.4;
	margin-top: 0;
}

.container {
	width: 100%;
	max-width: var(--container-width);
	margin-left: auto;
	margin-right: auto;
	padding-left: 1.25rem;
	padding-right: 1.25rem;
}

/* Screen reader */
.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;
}

.screen-reader-text:focus {
	background-color: var(--color-bg-alt);
	clip: auto !important;
	clip-path: none;
	color: var(--color-primary);
	display: block;
	font-size: 0.875rem;
	height: auto;
	left: 0.5rem;
	line-height: normal;
	padding: 0.75rem 1rem;
	text-decoration: none;
	top: 0.5rem;
	width: auto;
	z-index: 100000;
}

/* Header */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--color-white);
	border-bottom: 1px solid var(--color-border);
	box-shadow: var(--shadow);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: var(--header-height);
	gap: 1rem;
}

.site-title {
	margin: 0;
	font-family: var(--font-serif);
	font-size: 1.25rem;
	font-weight: 700;
}

.site-title a {
	color: var(--color-text);
}

.site-title a:hover {
	color: var(--color-primary);
}

.site-description {
	margin: 0.15rem 0 0;
	font-size: 0.75rem;
	color: var(--color-text-muted);
}

.site-logo img {
	max-height: 56px;
	width: auto;
}

/* Navigation */
.nav-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 44px;
	height: 44px;
	padding: 0;
	border: none;
	background: transparent;
	cursor: pointer;
}

.nav-toggle__bar {
	display: block;
	width: 22px;
	height: 2px;
	background: var(--color-text);
	transition: transform var(--transition), opacity var(--transition);
}

.primary-menu {
	display: flex;
	flex-wrap: wrap;
	gap: 0.25rem 1.5rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.primary-menu a {
	display: block;
	padding: 0.5rem 0;
	font-size: 0.9375rem;
	font-weight: 500;
	color: var(--color-text);
}

.primary-menu a:hover,
.primary-menu .current-menu-item > a {
	color: var(--color-primary);
}

/* Hero (front page) */
.hero {
	padding: 4rem 0 5rem;
	text-align: center;
	background: linear-gradient(180deg, var(--color-white) 0%, var(--color-bg) 100%);
	border-bottom: 1px solid var(--color-border);
}

.hero__label {
	margin: 0 0 0.5rem;
	font-size: 0.875rem;
	letter-spacing: 0.2em;
	color: var(--color-primary);
}

.hero__title {
	margin: 0 0 1rem;
	font-size: clamp(1.75rem, 5vw, 2.75rem);
}

.hero__lead {
	margin: 0 auto 2rem;
	max-width: 36em;
	font-size: 1.0625rem;
	color: var(--color-text-muted);
}

.hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem;
	justify-content: center;
}

/* Buttons */
.btn {
	display: inline-block;
	padding: 0.75rem 1.5rem;
	font-size: 0.9375rem;
	font-weight: 500;
	border-radius: var(--radius);
	border: 2px solid transparent;
	cursor: pointer;
	transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn--primary {
	background: var(--color-primary);
	color: var(--color-white) !important;
	border-color: var(--color-primary);
}

.btn--primary:hover {
	background: var(--color-primary-dark);
	border-color: var(--color-primary-dark);
	color: var(--color-white) !important;
}

.btn--outline {
	background: transparent;
	color: var(--color-primary) !important;
	border-color: var(--color-primary);
}

.btn--outline:hover {
	background: var(--color-primary);
	color: var(--color-white) !important;
}

/* Main content */
.site-main {
	padding: 2.5rem 0 4rem;
}

.page-header {
	margin-bottom: 2rem;
	padding-bottom: 1rem;
	border-bottom: 1px solid var(--color-border);
}

.page-title {
	margin: 0;
	font-size: 1.75rem;
}

.entry-content {
	max-width: 72ch;
}

.entry-content > * + * {
	margin-top: 1.25em;
}

.entry-thumbnail {
	margin-bottom: 1.5rem;
	border-radius: var(--radius);
	overflow: hidden;
}

.entry-meta {
	font-size: 0.875rem;
	color: var(--color-text-muted);
	margin-bottom: 1rem;
}

/* Post list */
.post-list {
	display: grid;
	gap: 2rem;
}

.post-card {
	display: grid;
	gap: 1rem;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	overflow: hidden;
	box-shadow: var(--shadow);
}

@media (min-width: 640px) {
	.post-card {
		grid-template-columns: 240px 1fr;
	}
}

.post-card__thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	min-height: 160px;
}

.post-card__body {
	padding: 1.25rem 1.25rem 1.25rem 0;
}

@media (max-width: 639px) {
	.post-card__body {
		padding: 0 1.25rem 1.25rem;
	}
}

.entry-title {
	margin: 0 0 0.5rem;
	font-size: 1.25rem;
}

.read-more {
	font-size: 0.875rem;
	font-weight: 500;
}

/* Pagination */
.pagination,
.navigation.posts-navigation {
	margin-top: 2.5rem;
}

.nav-links {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	justify-content: center;
}

.page-numbers,
.nav-links a {
	display: inline-block;
	padding: 0.5rem 0.875rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	background: var(--color-white);
}

.page-numbers.current {
	background: var(--color-primary);
	color: var(--color-white);
	border-color: var(--color-primary);
}

/* Sidebar */
.widget-area {
	margin-top: 2rem;
	padding: 1.5rem;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
}

.widget-title {
	margin: 0 0 1rem;
	font-size: 1rem;
}

@media (min-width: 900px) {
	.site-main.container {
		display: grid;
		grid-template-columns: 1fr 280px;
		gap: 2.5rem;
		align-items: start;
	}

	.widget-area {
		margin-top: 0;
	}
}

/* Footer */
.site-footer {
	background: var(--color-text);
	color: rgba(255, 255, 255, 0.85);
	padding: 2.5rem 0;
	margin-top: auto;
}

.site-footer a {
	color: var(--color-white);
}

.site-footer__widgets {
	padding-bottom: 2rem;
	margin-bottom: 2rem;
	border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-menu {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem 1.5rem;
	list-style: none;
	margin: 0 0 1.5rem;
	padding: 0;
	justify-content: center;
}

.site-footer__copy {
	margin: 0;
	text-align: center;
	font-size: 0.875rem;
	opacity: 0.8;
}

/* Search */
.search-form {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	max-width: 400px;
}

.search-field {
	flex: 1;
	min-width: 180px;
	padding: 0.625rem 0.875rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	font-family: inherit;
}

/* 404 */
.error-404__home {
	margin-top: 1.5rem;
}

/* Comments */
.comments-area {
	margin-top: 3rem;
	padding-top: 2rem;
	border-top: 1px solid var(--color-border);
}

/* Front content */
.front-content {
	padding: 3rem 0 4rem;
}

/* Mobile nav */
@media (max-width: 767px) {
	.nav-toggle {
		display: flex;
	}

	.primary-navigation {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--color-white);
		border-bottom: 1px solid var(--color-border);
		max-height: 0;
		overflow: hidden;
		transition: max-height var(--transition);
	}

	.primary-navigation.is-open {
		max-height: 80vh;
		overflow-y: auto;
	}

	.primary-menu {
		flex-direction: column;
		padding: 1rem 1.25rem;
	}

	.site-header__inner {
		position: relative;
		flex-wrap: wrap;
	}

	.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
		transform: translateY(7px) rotate(45deg);
	}

	.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
		opacity: 0;
	}

	.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
		transform: translateY(-7px) rotate(-45deg);
	}
}