/*
Theme Name: crane house systems
Theme URI: http://www.cranehouse.tokyo/blog
Author: crane house systems
Description: ライター 松山茂のポートフォリオ兼ブログ用テーマ。寄稿記事リンク、製品レビュー、コラムを掲載。PC・iPad・iPhone対応。
Version: 1.0.1
Requires at least: 6.0
Tested up to: 7.1
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: crane-house
*/

/* ========== Tokens ========== */
:root {
	--bg: #fbfaf7;
	--surface: #ffffff;
	--ink: #1c1c1e;
	--ink-2: #4a4a4f;
	--ink-3: #86868b;
	--line: #e6e3dc;
	--accent: #0f6b66;
	--accent-soft: #e3f0ee;
	--radius: 14px;
	--shadow: 0 1px 2px rgba(0,0,0,.04), 0 6px 20px rgba(0,0,0,.05);
	--max: 1120px;
	--read: 720px;
	--gutter: clamp(16px, 4vw, 32px);
	--font: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
	--font-en: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
	--mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
	:root {
		--bg: #121214;
		--surface: #1c1c1f;
		--ink: #f2f2f4;
		--ink-2: #c3c3c8;
		--ink-3: #8e8e93;
		--line: #2e2e33;
		--accent: #5cc3ba;
		--accent-soft: #173331;
		--shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.25);
	}
}

/* ========== Base ========== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
	margin: 0;
	background: var(--bg);
	color: var(--ink);
	font-family: var(--font);
	font-size: 16px;
	line-height: 1.8;
	letter-spacing: .02em;
	font-feature-settings: "palt" 1;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}
img, video, iframe { max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.screen-reader-text {
	position: absolute !important; width: 1px; height: 1px; overflow: hidden;
	clip: rect(1px,1px,1px,1px); white-space: nowrap;
}
.skip-link:focus {
	position: fixed; top: 8px; left: 8px; z-index: 1000; width: auto; height: auto; clip: auto;
	background: var(--surface); padding: 8px 14px; border-radius: 8px; box-shadow: var(--shadow);
}
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ========== Header ========== */
.site-header {
	position: sticky; top: 0; z-index: 50;
	background: color-mix(in srgb, var(--bg) 86%, transparent);
	-webkit-backdrop-filter: saturate(180%) blur(16px);
	backdrop-filter: saturate(180%) blur(16px);
	border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 16px; }
.site-branding { display: flex; align-items: center; gap: 14px; min-width: 0; padding: 12px 0; }
.site-logo { display: block; flex-shrink: 0; line-height: 0; }
.site-logo img, .site-branding .custom-logo { display: block; height: 40px; width: auto; max-width: none; }
.site-branding .custom-logo-link { line-height: 0; flex-shrink: 0; }
.site-description { margin: 0; padding-left: 14px; border-left: 1px solid var(--line); font-size: .8rem; font-weight: 600; color: var(--ink-2); line-height: 1.3; white-space: nowrap; }
@media (max-width: 820px) {
	.site-logo img, .site-branding .custom-logo { height: 30px; }
}
@media (max-width: 480px) {
	.site-branding { flex-direction: column; align-items: flex-start; gap: 4px; padding: 10px 0; }
	.site-logo img, .site-branding .custom-logo { height: 26px; }
	.site-description { padding-left: 0; border-left: 0; font-size: .72rem; }
}

.nav-toggle {
	display: none; background: none; border: 0; padding: 10px; margin-right: -10px;
	color: var(--ink); cursor: pointer;
}
.nav-toggle-bar { display: block; width: 22px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-toggle-bar + .nav-toggle-bar { margin-top: 5px; }
.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); }

.main-navigation ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.main-navigation a {
	display: block; padding: 8px 14px; border-radius: 999px; color: var(--ink-2);
	font-size: .92rem; font-weight: 600; text-decoration: none;
}
.main-navigation a:hover, .main-navigation .current-menu-item > a, .main-navigation .current-menu-parent > a {
	background: var(--accent-soft); color: var(--accent);
}
.main-navigation .sub-menu { display: none; }

@media (max-width: 820px) {
	.nav-toggle { display: block; }
	.main-navigation {
		position: absolute; left: 0; right: 0; top: 100%;
		background: var(--bg); border-bottom: 1px solid var(--line);
		display: none;
	}
	.main-navigation.is-open { display: block; }
	.main-navigation ul { flex-direction: column; padding: 8px var(--gutter) 16px; gap: 0; }
	.main-navigation a { padding: 14px 4px; border-radius: 0; border-bottom: 1px solid var(--line); font-size: 1rem; }
	.main-navigation li:last-child a { border-bottom: 0; }
	.main-navigation a:hover, .main-navigation .current-menu-item > a { background: none; }
	.main-navigation .sub-menu { display: block; padding: 0 0 0 16px; }
}

/* ========== Hero ========== */
.hero { padding: clamp(48px, 9vw, 112px) 0 clamp(40px, 7vw, 80px); border-bottom: 1px solid var(--line); }
.hero-inner { display: grid; grid-template-columns: 1fr auto; gap: clamp(24px, 5vw, 64px); align-items: center; }
.hero-eyebrow {
	margin: 0 0 12px; font-family: var(--font-en); font-size: .8rem; font-weight: 700;
	letter-spacing: .18em; text-transform: uppercase; color: var(--accent);
}
.hero-title { margin: 0; font-size: clamp(2.2rem, 6.4vw, 4rem); line-height: 1.15; font-weight: 800; letter-spacing: .04em; }
.hero-lead { margin: 20px 0 0; max-width: 36em; font-size: clamp(1rem, 1.8vw, 1.12rem); color: var(--ink-2); }
.hero-media { margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; }
.hero-media li {
	font-size: .82rem; font-weight: 600; padding: 5px 12px; border: 1px solid var(--line);
	border-radius: 999px; background: var(--surface); color: var(--ink-2);
}
.hero-photo {
	width: clamp(140px, 22vw, 240px); aspect-ratio: 1; border-radius: 50%; overflow: hidden;
	background: var(--accent-soft); box-shadow: var(--shadow);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 640px) {
	.hero-inner { grid-template-columns: 1fr; }
	.hero-photo { order: -1; width: 112px; }
}

/* ========== Sections ========== */
.section { padding: clamp(40px, 7vw, 80px) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.section-title { margin: 0; font-size: clamp(1.35rem, 2.6vw, 1.75rem); font-weight: 800; letter-spacing: .04em; }
.section-title small {
	display: block; font-family: var(--font-en); font-size: .72rem; font-weight: 700;
	letter-spacing: .18em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px;
}
.section-more { font-size: .9rem; font-weight: 600; white-space: nowrap; }
.section-more::after { content: " →"; }

/* ========== Cards ========== */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: clamp(16px, 2.4vw, 28px); }
.card {
	position: relative; display: flex; flex-direction: column;
	background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
	overflow: hidden; transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-thumb { aspect-ratio: 16 / 9; background: var(--accent-soft); overflow: hidden; }
.card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-thumb--empty {
	display: flex; align-items: center; justify-content: center; padding: 16px;
	font-family: var(--font-en); font-weight: 700; letter-spacing: .08em; color: var(--accent);
	background: linear-gradient(135deg, var(--accent-soft), var(--surface));
	text-align: center;
}
.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: .78rem; color: var(--ink-3); }
.card-title { margin: 0; font-size: 1.05rem; line-height: 1.55; font-weight: 700; }
.card-title a { color: var(--ink); text-decoration: none; }
.card-title a::after { content: ""; position: absolute; inset: 0; } /* whole card clickable */
.card-title a:hover { text-decoration: none; }
.card-excerpt { margin: 0; font-size: .88rem; color: var(--ink-2); line-height: 1.75; }
.card-ext { margin-top: auto; font-size: .8rem; font-weight: 600; color: var(--accent); }

.badge {
	display: inline-flex; align-items: center; gap: 6px; font-size: .72rem; font-weight: 700;
	padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent);
	line-height: 1.5;
}
.badge--cat { background: transparent; border: 1px solid var(--line); color: var(--ink-2); }

/* compact list (for works on front page) */
.work-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.work-item { position: relative; display: grid; grid-template-columns: 9.5em 1fr auto; gap: 16px; align-items: center; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.work-item:hover { background: var(--surface); }
.work-item time { font-size: .82rem; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.work-item .work-title { margin: 0; font-size: 1rem; font-weight: 600; line-height: 1.6; }
.work-item .work-title a { color: var(--ink); }
.work-item .work-title a::after { content: ""; position: absolute; inset: 0; }
.work-item .work-arrow { color: var(--ink-3); font-size: .9rem; }
@media (max-width: 640px) {
	.work-item { grid-template-columns: 1fr auto; gap: 6px 12px; }
	.work-item .work-when { grid-column: 1 / -1; display: flex; gap: 10px; align-items: center; }
}
.work-when { display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }
@media (max-width: 640px) { .work-when { flex-direction: row; } }

/* ========== Profile ========== */
.profile { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 64px); }
.profile-text { color: var(--ink-2); }
.profile-text p { margin: 0 0 1em; }
.profile-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.button {
	display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 999px;
	background: var(--ink); color: var(--bg); font-weight: 700; font-size: .92rem; text-decoration: none;
	border: 1px solid var(--ink); cursor: pointer;
}
.button:hover { text-decoration: none; opacity: .85; }
.button--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
@media (max-width: 820px) { .profile { grid-template-columns: 1fr; } }

/* ========== Archive / page head ========== */
.page-head { padding: clamp(40px, 6vw, 72px) 0 clamp(24px, 4vw, 40px); border-bottom: 1px solid var(--line); margin-bottom: clamp(28px, 4vw, 48px); }
.page-head h1 { margin: 0; font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: .04em; line-height: 1.3; }
.page-head p { margin: 10px 0 0; color: var(--ink-2); }

/* media filter chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; padding: 0; list-style: none; }
.chips a {
	display: block; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line);
	font-size: .85rem; font-weight: 600; color: var(--ink-2); background: var(--surface);
}
.chips a:hover, .chips a.is-active { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* ========== Pagination ========== */
.pagination { margin: 48px 0 16px; }
.pagination .nav-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.pagination .page-numbers {
	min-width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center;
	padding: 0 12px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2); font-weight: 600;
}
.pagination .page-numbers.current { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pagination a.page-numbers:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* ========== Single ========== */
.entry { max-width: var(--read); margin: 0 auto; padding: clamp(40px, 6vw, 72px) 0 40px; }
.entry-header { margin-bottom: 32px; }
.entry-meta { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; font-size: .85rem; color: var(--ink-3); margin-bottom: 14px; }
.entry-title { margin: 0; font-size: clamp(1.6rem, 4.2vw, 2.3rem); line-height: 1.45; font-weight: 800; letter-spacing: .03em; }
.entry-thumb { margin: 0 0 32px; border-radius: var(--radius); overflow: hidden; }
.entry-thumb img { display: block; width: 100%; }

.entry-content { font-size: 1.0625rem; line-height: 1.95; }
.entry-content > * { margin-top: 0; margin-bottom: 1.5em; }
.entry-content h2 {
	font-size: 1.45rem; line-height: 1.5; margin: 2.4em 0 1em; padding-bottom: .4em;
	border-bottom: 2px solid var(--ink);
}
.entry-content h3 { font-size: 1.2rem; line-height: 1.55; margin: 2em 0 .8em; padding-left: .7em; border-left: 4px solid var(--accent); }
.entry-content h4 { font-size: 1.05rem; margin: 1.8em 0 .6em; }
.entry-content ul, .entry-content ol { padding-left: 1.4em; }
.entry-content li + li { margin-top: .4em; }
.entry-content blockquote {
	margin-left: 0; margin-right: 0; padding: 1em 1.4em; background: var(--surface);
	border-left: 4px solid var(--line); border-radius: 0 var(--radius) var(--radius) 0; color: var(--ink-2);
}
.entry-content blockquote p:last-child { margin-bottom: 0; }
.entry-content figure { margin-left: 0; margin-right: 0; }
.entry-content img { border-radius: 10px; }
.entry-content figcaption, .entry-content .wp-element-caption { font-size: .82rem; color: var(--ink-3); text-align: center; margin-top: .6em; line-height: 1.6; }
.entry-content code { font-family: var(--mono); font-size: .88em; background: var(--accent-soft); padding: .15em .4em; border-radius: 5px; }
.entry-content pre {
	font-family: var(--mono); font-size: .88rem; line-height: 1.7; background: #1c1c1e; color: #f2f2f4;
	padding: 1.2em 1.4em; border-radius: 12px; overflow-x: auto;
}
.entry-content pre code { background: none; padding: 0; color: inherit; }
.entry-content table { width: 100%; border-collapse: collapse; font-size: .92rem; display: block; overflow-x: auto; }
.entry-content th, .entry-content td { border: 1px solid var(--line); padding: .7em .9em; text-align: left; }
.entry-content th { background: var(--surface); }
.entry-content hr { border: 0; border-top: 1px solid var(--line); margin: 3em 0; }
.entry-content .alignwide { margin-left: calc(50% - min(50vw, 560px) + var(--gutter)); margin-right: calc(50% - min(50vw, 560px) + var(--gutter)); max-width: none; }
.entry-content .alignfull { margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw); max-width: 100vw; width: 100vw; }
.entry-content .alignleft { float: left; margin: .3em 1.5em 1em 0; max-width: 50%; }
.entry-content .alignright { float: right; margin: .3em 0 1em 1.5em; max-width: 50%; }
.entry-content .aligncenter { margin-left: auto; margin-right: auto; }
.entry-content .wp-block-embed iframe { width: 100%; }
@media (max-width: 640px) {
	.entry-content .alignleft, .entry-content .alignright { float: none; margin: 0 0 1.5em; max-width: 100%; }
}

/* external article box */
.external-box {
	margin: 40px 0; padding: 24px; border-radius: var(--radius);
	background: var(--surface); border: 1px solid var(--line);
	display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
}
.external-box p { margin: 0; font-size: .92rem; color: var(--ink-2); }
.external-box strong { display: block; color: var(--ink); font-size: 1rem; }

.entry-footer { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px; }
.entry-footer a.tag { font-size: .8rem; padding: 4px 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); color: var(--ink-2); }

.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: var(--read); margin: 0 auto 48px; }
.post-nav a {
	display: block; padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius);
	background: var(--surface); color: var(--ink); font-size: .9rem; line-height: 1.6;
}
.post-nav a:hover { border-color: var(--accent); text-decoration: none; }
.post-nav span { display: block; font-size: .75rem; color: var(--ink-3); margin-bottom: 4px; }
.post-nav .next { text-align: right; grid-column: 2; }
@media (max-width: 640px) { .post-nav { grid-template-columns: 1fr; } .post-nav .next { grid-column: 1; } }

/* comments */
.comments-area { max-width: var(--read); margin: 0 auto 64px; }
.comments-area .comment-list { list-style: none; padding: 0; }
.comments-area input[type="text"], .comments-area input[type="email"], .comments-area input[type="url"], .comments-area textarea {
	width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--ink); font: inherit;
}
.comments-area .submit { background: var(--ink); color: var(--bg); border: 0; border-radius: 999px; padding: 10px 22px; font-weight: 700; cursor: pointer; }

/* ========== Search form ========== */
.search-form { display: flex; gap: 8px; max-width: 480px; }
.search-form input[type="search"] {
	flex: 1; min-width: 0; padding: 11px 16px; border-radius: 999px; border: 1px solid var(--line);
	background: var(--surface); color: var(--ink); font: inherit; font-size: 16px; /* prevent iOS zoom */
}
.search-form button { padding: 11px 18px; border-radius: 999px; border: 0; background: var(--ink); color: var(--bg); font-weight: 700; cursor: pointer; }

/* ========== Footer ========== */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 calc(32px + env(safe-area-inset-bottom)); margin-top: 40px; font-size: .85rem; color: var(--ink-3); }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.footer-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 18px; }
.footer-nav a { color: var(--ink-2); }
.site-footer .copyright { margin: 0; font-family: var(--font-en); letter-spacing: .04em; }

.empty-state { padding: 48px 0; text-align: center; color: var(--ink-3); }

@media (prefers-reduced-motion: reduce) {
	* { transition: none !important; scroll-behavior: auto !important; }
}