/* TM Base — サイト共通（仮デザイン） */

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

body {
	margin: 0;
	background: #f1f5f9;
	color: #0f172a;
	font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", system-ui, sans-serif;
	-webkit-font-smoothing: antialiased;
}

.c-site-header__bar {
	background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
	border-bottom: 1px solid #334155;
}

.c-site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding: 0.875rem 1.25rem;
	max-width: 960px;
	margin: 0 auto;
}

.c-site-header__logo {
	color: #f8fafc;
	text-decoration: none;
	font-weight: 700;
	font-size: 1rem;
	letter-spacing: 0.02em;
}

.c-site-nav__list {
	display: flex;
	gap: 1.25rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.c-site-nav__link {
	color: #e2e8f0;
	text-decoration: none;
	font-size: 0.875rem;
	font-weight: 500;
}

.c-site-nav__link:hover {
	color: #fff;
	text-decoration: underline;
}

.c-site-nav__link--muted {
	color: #94a3b8;
}

.c-site-main--single,
.c-site-main--archive {
	min-height: 50vh;
}

.c-site-footer {
	background: #0f172a;
	color: #94a3b8;
	padding: 2rem 1.25rem;
	margin-top: 0;
	font-size: 0.8125rem;
}

.c-site-footer__inner {
	max-width: 960px;
	margin: 0 auto;
}

.c-site-footer__note {
	margin: 0;
}

/* 一覧 */
.c-archive {
	padding: 2.5rem 1.25rem 4rem;
}

.c-archive__inner {
	max-width: 720px;
	margin: 0 auto;
}

.c-archive__title {
	font-size: 1.5rem;
	margin: 0 0 0.5rem;
	color: #0f172a;
}

.c-archive__lead {
	margin: 0 0 2rem;
	font-size: 0.9375rem;
	color: #64748b;
}

.c-post-list {
	margin: 0;
	padding: 0;
	list-style: none;
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.c-post-card {
	background: #fff;
	border: 1px solid #e2e8f0;
	border-radius: 12px;
	padding: 1.25rem 1.5rem;
	box-shadow: 0 1px 2px rgb(15 23 42 / 6%);
	transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.c-post-card:hover {
	border-color: #cbd5e1;
	box-shadow: 0 4px 12px rgb(15 23 42 / 8%);
}

.c-post-card__meta {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin: 0 0 0.5rem;
	font-size: 0.8125rem;
	color: #64748b;
}

.c-post-card__badge {
	background: #fef3c7;
	color: #92400e;
	font-size: 0.6875rem;
	font-weight: 700;
	padding: 0.125rem 0.5rem;
	border-radius: 999px;
}

.c-post-card__title {
	font-size: 1.125rem;
	margin: 0 0 0.5rem;
	line-height: 1.4;
}

.c-post-card__title a {
	color: #0f172a;
	text-decoration: none;
}

.c-post-card__title a:hover {
	color: #1d4ed8;
}

.c-post-card__excerpt {
	margin: 0 0 0.75rem;
	font-size: 0.9375rem;
	line-height: 1.65;
	color: #475569;
}

.c-post-card__link {
	font-size: 0.875rem;
	font-weight: 600;
	color: #2563eb;
	text-decoration: none;
}

.c-post-card__link:hover {
	text-decoration: underline;
}

.c-post-list__empty {
	color: #64748b;
}

@media (max-width: 640px) {
	.c-site-header__inner {
		flex-direction: column;
		align-items: flex-start;
	}

	.c-site-nav__list {
		flex-wrap: wrap;
		gap: 0.75rem;
	}
}