/*
Theme Name: やまだや 2026-2
Description: やまだやホームページ 2026 リニューアルデザイン版（IBM Plexベース／モノトーン＋アクセントピンク）
Version: 2.0
Author: Yamadaya Web Produce
*/

@charset "utf-8";

/* ============================================================
   Design Tokens
   ============================================================ */
:root {
	--ink:            #161616;
	--ink-mid:        #393939;
	--ink-sub:        #525252;
	--ink-light:      #8d8d8d;
	--line-mid:       #a8a8a8;
	--line:           #e0e0e0;
	--paper:          #ffffff;
	--paper-warm:     #f4f4f4;
	--paper-cool:     #c6c6c6;
	--dark:           #161616;
	--dark-deep:      #0b0b0b;
	--dark-line:      #393939;
	--dark-line-sub:  #262626;
	--accent:         #D50057;
	--accent-hover:   #D50057;
	--sans:           'IBM Plex Sans JP','IBM Plex Sans',system-ui,-apple-system,'Hiragino Kaku Gothic ProN','Yu Gothic UI','Meiryo',sans-serif;
	--mono:           'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
	--serif:          'IBM Plex Serif','IBM Plex Sans JP',serif;
}

/* ============================================================
   Base
   ============================================================ */
html, body {
	margin: 0;
	padding: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--sans);
	-webkit-font-smoothing: antialiased;
	letter-spacing: 0;
}
* { box-sizing: border-box; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
::selection { background: var(--accent); color: #fff; }
img { max-width: 100%; height: auto; display: block; }

body {
	font-size: 17px;
	line-height: 1.7;
}

/* ============================================================
   Layout wrapper
   ============================================================ */
.ym-root { background: var(--paper); color: var(--ink); }
.ym-container { max-width: 1600px; }
.ym-container-hero { max-width: 1760px; }

/* ============================================================
   HEADER
   ============================================================ */
.ym-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background: var(--dark);
	color: #f4f4f4;
	height: 48px;
	display: flex;
	align-items: stretch;
	border-bottom: 1px solid var(--dark-line);
	font-size: 14px;
}
.ym-header a { color: inherit; }
.ym-menu-toggle { position: absolute; opacity: 0; pointer-events: none; }
.ym-brand {
	display: flex;
	align-items: stretch;
	flex-shrink: 0;
	margin: 0;
	font-size: 14px;
	font-weight: 400;
}
.ym-brand a {
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 0 16px;
	border-right: 1px solid var(--dark-line);
	height: 100%;
	color: inherit;
}
.ym-brand img { width: 26px; height: 26px; object-fit: contain; }
.ym-brand-name { font-weight: 600; letter-spacing: 0.02em; }
.ym-brand-tagline { font-weight: 300; color: var(--paper-cool); }
.ym-nav { display: flex; align-items: stretch; flex: 1; }
.ym-nav-item {
	display: flex;
	align-items: center;
	padding: 0 16px;
	border-right: 1px solid var(--dark-line-sub);
	font-weight: 400;
}
.ym-nav-item:hover { background: var(--dark-line-sub); color: #fff; }
.ym-nav-spacer { flex: 1; }
.ym-hamburger {
	display: none;
	align-items: center;
	justify-content: center;
	width: 48px; height: 48px;
	cursor: pointer;
	border-left: 1px solid var(--dark-line);
}
.ym-hamburger-icon {
	position: relative;
	display: block;
	width: 18px; height: 12px;
}
.ym-hamburger-icon span {
	position: absolute;
	left: 0; right: 0;
	height: 1.5px;
	background: #f4f4f4;
	transition: transform .2s, top .2s, opacity .2s;
}
.ym-hamburger-icon span:nth-child(1) { top: 0; }
.ym-hamburger-icon span:nth-child(2) { top: 5px; }
.ym-hamburger-icon span:nth-child(3) { top: 10px; }
.ym-menu-toggle:checked ~ .ym-nav .ym-hamburger-icon span:nth-child(1) { top: 5px; transform: rotate(45deg); }
.ym-menu-toggle:checked ~ .ym-nav .ym-hamburger-icon span:nth-child(2) { opacity: 0; }
.ym-menu-toggle:checked ~ .ym-nav .ym-hamburger-icon span:nth-child(3) { top: 5px; transform: rotate(-45deg); }
.ym-cta-header {
	display: flex;
	align-items: center;
	padding: 0 24px;
	background: var(--accent);
	color: #fff;
	font-weight: 500;
}
.ym-cta-header:hover { background: var(--accent); color: #fff; opacity: 0.9; }
.ym-mobile-menu {
	display: none;
	position: fixed;
	top: 48px; left: 0; right: 0; bottom: 0;
	background: var(--dark);
	flex-direction: column;
	padding: 0;
	z-index: 49;
}
.ym-menu-toggle:checked ~ .ym-mobile-menu { display: flex; }
.ym-mobile-menu a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 20px 24px;
	border-bottom: 1px solid var(--dark-line);
	color: #f4f4f4;
	font-size: 16px;
}
.ym-mobile-menu a .ym-arrow { color: var(--ink-light); }
.ym-mobile-menu a.ym-mobile-cta {
	background: var(--accent);
	color: #fff;
	font-weight: 500;
	margin-top: auto;
	border-bottom: none;
}
.ym-mobile-menu a.ym-mobile-cta .ym-arrow { color: #fff; }

/* ============================================================
   Common section
   ============================================================ */
.ym-section {
	padding: 96px 64px;
	border-bottom: 1px solid var(--line);
}
.ym-section-white  { background: var(--paper); }
.ym-section-gray   { background: var(--paper-warm); }
.ym-section-dark   { background: var(--dark); color: #f4f4f4; }

.ym-eyebrow {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.16em;
	color: var(--ink-sub);
	text-transform: uppercase;
	margin-bottom: 16px;
	display: flex;
	align-items: center;
	gap: 12px;
}
.ym-eyebrow-line {
	width: 24px; height: 1px;
	background: var(--ink);
	display: inline-block;
}
.ym-eyebrow-dark { color: var(--paper-cool); }
.ym-eyebrow-dark .ym-eyebrow-line { background: var(--paper-cool); }

.ym-grid-13 {
	display: grid;
	grid-template-columns: 1fr 3fr;
	gap: 64px;
	align-items: end;
}
.ym-grid-13-top { align-items: flex-start; }
.ym-h2 {
	font-family: var(--sans);
	font-weight: 300;
	font-size: 42px;
	line-height: 1.25;
	letter-spacing: -0.01em;
	margin: 0;
	color: var(--ink);
}
.ym-h2-sm {
	font-weight: 300;
	font-size: 36px;
	line-height: 1.3;
	margin: 0 0 16px;
}
.ym-lead {
	font-size: 16px;
	line-height: 1.7;
	color: var(--ink-mid);
	margin: 0;
	max-width: 720px;
}

/* ============================================================
   HERO (front-page)
   ============================================================ */
.ym-hero {
	background: var(--paper);
	padding: 96px 64px 128px;
	border-bottom: 1px solid var(--line);
	position: relative;
	overflow: hidden;
}
.ym-hero-mark {
	position: absolute;
	top: -100px;
	right: -140px;
	width: 820px;
	height: 820px;
	pointer-events: none;
	z-index: 0;
	opacity: 0.18;
}
.ym-hero-inner {
	max-width: 1760px;
	position: relative;
	z-index: 1;
}
.ym-hero .ym-eyebrow { margin-bottom: 48px; }
.ym-h1 {
	font-family: var(--sans);
	font-weight: 300;
	font-size: 112px;
	line-height: 1.1;
	letter-spacing: -0.03em;
	margin: 0 0 64px;
	color: var(--ink);
}
.ym-h1 em, .ym-h1 .ym-h1-strong {
	font-style: normal;
	font-weight: 500;
	color: var(--ink);
}
.ym-grid-hero {
	display: grid;
	grid-template-columns: 2fr 3fr;
	gap: 64px;
	align-items: end;
}
.ym-hero-para {
	font-size: 20px;
	line-height: 1.8;
	color: var(--ink-mid);
	margin: 0;
	font-weight: 400;
}
.ym-hero-para .ym-accent { color: var(--accent); font-weight: 500; }
.ym-tag-row {
	display: flex;
	gap: 1px;
	background: var(--line);
	border: 1px solid var(--line);
	flex-wrap: wrap;
}
.ym-tag {
	background: var(--paper);
	padding: 12px 16px;
	font-size: 13px;
	font-family: var(--mono);
}

/* ============================================================
   Page hero (2nd-level pages)
   ============================================================ */
.ym-page-hero {
	background: var(--paper);
	padding: 80px 64px 64px;
	border-bottom: 1px solid var(--line);
	position: relative;
	overflow: hidden;
}
.ym-page-hero .ym-hero-mark {
	width: 520px; height: 520px;
	opacity: 0.12;
}
.ym-page-hero-inner {
	max-width: 1600px;
	position: relative;
	z-index: 1;
}
.ym-page-hero .ym-eyebrow { margin-bottom: 32px; }
.ym-page-h1 {
	font-family: var(--sans);
	font-weight: 300;
	font-size: 72px;
	line-height: 1.15;
	letter-spacing: -0.02em;
	margin: 0 0 24px;
	color: var(--ink);
}
.ym-page-lead {
	font-size: 18px;
	line-height: 1.75;
	color: var(--ink-mid);
	margin: 0;
	max-width: 720px;
}

/* ============================================================
   Services grid
   ============================================================ */
.ym-services-head {
	margin-bottom: 64px;
}
.ym-services-index {
	font-family: var(--mono);
	font-size: 14px;
	color: var(--ink);
	margin-top: 8px;
}
.ym-services-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1px;
	background: var(--line);
	border: 1px solid var(--line);
}
.ym-service-card {
	background: var(--paper);
	padding: 32px;
	display: flex;
	flex-direction: column;
	gap: 16px;
	min-height: 360px;
}
.ym-service-num {
	font-family: var(--mono);
	font-size: 32px;
	font-weight: 300;
	color: var(--accent);
	margin: 0;
}
.ym-service-card h3 {
	font-family: var(--sans);
	font-weight: 500;
	font-size: 22px;
	line-height: 1.35;
	margin: 0;
	color: var(--ink);
}
.ym-service-card h3 .ym-service-sub {
	display: block;
	font-size: 14px;
	font-weight: 400;
	color: var(--ink-sub);
	margin-top: 6px;
}
.ym-service-card p {
	font-size: 14px;
	line-height: 1.7;
	color: var(--ink-mid);
	margin: 0;
}

/* ============================================================
   Blog list (front-page and archive)
   ============================================================ */
.ym-blog-head {
	margin-bottom: 48px;
}
.ym-blog-head .ym-h2 { margin-bottom: 16px; }
.ym-blog-list {
	list-style: none;
	padding: 0;
	margin: 0;
	border-top: 1px solid var(--ink);
}
.ym-blog-list li {
	border-bottom: 1px solid var(--line);
}
.ym-blog-item {
	display: grid;
	grid-template-columns: 120px 1fr 24px;
	gap: 24px;
	padding: 24px 0;
	align-items: baseline;
}
.ym-blog-item-cat {
	grid-template-columns: 120px 160px 1fr 24px;
}
.ym-blog-item time,
.ym-blog-date {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--ink-sub);
}
.ym-blog-cat {
	font-family: var(--mono);
	font-size: 11px;
	color: var(--accent);
	letter-spacing: 0.08em;
}
.ym-blog-title {
	font-size: 18px;
	line-height: 1.5;
	color: var(--ink);
}
.ym-blog-arrow {
	color: var(--ink-sub);
	text-align: right;
}

/* Category chip list (side) */
.ym-cat-side-label {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
	text-transform: uppercase;
	margin-bottom: 16px;
}
.ym-cat-list {
	display: flex;
	flex-direction: column;
	gap: 1px;
	background: var(--line);
	border: 1px solid var(--line);
}
.ym-cat-list a {
	background: var(--paper);
	padding: 14px 16px;
	font-size: 13px;
	display: flex;
	justify-content: space-between;
	align-items: center;
}
.ym-cat-list a.is-active {
	background: var(--ink);
	color: #fff;
}
.ym-cat-list a.is-active .ym-arrow { color: #fff; }
.ym-cat-list a .ym-arrow { color: var(--ink-sub); }

.ym-list-head {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	margin-bottom: 8px;
	border-bottom: 1px solid var(--ink);
	padding-bottom: 16px;
}
.ym-list-head-label {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.16em;
	color: var(--ink-sub);
	text-transform: uppercase;
}
.ym-list-head-count {
	font-family: var(--mono);
	font-size: 12px;
	color: var(--ink-sub);
}
.ym-blog-more {
	margin-top: 32px;
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-size: 14px;
	color: var(--accent);
	border-bottom: 1px solid var(--accent);
	padding-bottom: 2px;
}

/* ============================================================
   Q&A groups (front-page)
   ============================================================ */
.ym-qa-block { margin-bottom: 96px; }
.ym-qa-block:last-child { margin-bottom: 0; }
.ym-qa-head { margin-bottom: 48px; }
.ym-qa-lead {
	font-size: 16px;
	line-height: 1.7;
	color: var(--ink-mid);
	margin: 0 0 16px;
}
.ym-qa-more {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-size: 14px;
	color: var(--accent);
	border-bottom: 1px solid var(--accent);
	padding-bottom: 2px;
}
.ym-qa-grid {
	display: grid;
	gap: 1px;
	background: var(--line);
	border: 1px solid var(--line);
}
.ym-qa-grid-5 { grid-template-columns: repeat(5, 1fr); }
.ym-qa-grid-4 { grid-template-columns: repeat(4, 1fr); }
.ym-qa-col {
	background: var(--paper);
	padding: 24px;
}
.ym-qa-col-label {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--accent);
	margin-bottom: 16px;
}
.ym-qa-col h3 {
	font-size: 15px;
	font-weight: 600;
	margin: 0 0 16px;
	line-height: 1.5;
}
.ym-qa-col ul {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: 12px;
}
.ym-qa-col li a {
	font-size: 13px;
	line-height: 1.55;
	color: var(--ink);
	display: block;
	border-left: 2px solid var(--line);
	padding-left: 8px;
}
.ym-qa-col li a:hover { border-left-color: var(--accent); color: var(--accent); }

/* ============================================================
   About
   ============================================================ */
.ym-about-head { margin-bottom: 64px; }
.ym-about-info {
	border-collapse: collapse;
	width: 100%;
	font-size: 14px;
}
.ym-about-info tr:first-child {
	border-top: 1px solid var(--ink);
}
.ym-about-info tr {
	border-bottom: 1px solid var(--line);
}
.ym-about-info th {
	text-align: left;
	padding: 16px 0;
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
	font-weight: 400;
	width: 120px;
	text-transform: uppercase;
}
.ym-about-info td {
	padding: 16px 0;
	font-weight: 500;
}
.ym-about-body {
	font-size: 18px;
	line-height: 1.85;
	color: var(--ink);
	font-weight: 400;
	max-width: 820px;
}
.ym-about-body p { margin: 0 0 28px; }
.ym-about-body p:last-child { margin: 0; }
.ym-about-body .ym-highlight {
	padding: 24px;
	background: var(--paper-warm);
	border-left: 3px solid var(--accent);
	font-weight: 500;
}

/* ============================================================
   Contact section (front-page footer CTA) & Contact page
   ============================================================ */
.ym-contact-cta {
	background: var(--dark);
	color: #f4f4f4;
	padding: 128px 64px;
}
.ym-h2-contact {
	font-family: var(--sans);
	font-weight: 300;
	font-size: 56px;
	line-height: 1.2;
	letter-spacing: -0.01em;
	margin: 0 0 32px;
	color: #fff;
}
.ym-contact-body {
	font-size: 18px;
	line-height: 1.75;
	color: var(--paper-cool);
	margin: 0 0 48px;
	max-width: 640px;
}
.ym-cta {
	display: inline-flex;
	align-items: center;
	justify-content: space-between;
	background: var(--accent);
	color: #fff;
	padding: 20px 24px;
	min-width: 400px;
	font-size: 16px;
	font-weight: 500;
	gap: 32px;
	border: none;
	cursor: pointer;
	font-family: inherit;
}
.ym-cta:hover { color: #fff; opacity: 0.92; }
.ym-cta .ym-cta-arrow { font-size: 20px; }
.ym-contact-note {
	font-size: 13px;
	color: var(--ink-light);
	margin: 48px 0 0;
	padding-top: 24px;
	border-top: 1px solid var(--dark-line);
	max-width: 640px;
}

/* Contact page form */
.ym-contact-page-form {
	background: var(--paper);
	padding: 48px;
	border: 1px solid var(--line);
}
.ym-form-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 24px;
	margin-bottom: 24px;
}
.ym-form-label {
	display: flex;
	flex-direction: column;
	gap: 8px;
}
.ym-form-label > span {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
	text-transform: uppercase;
}
.ym-form-label input,
.ym-form-label textarea,
.ym-form-label select {
	padding: 14px 12px;
	border: 1px solid var(--line);
	font-size: 16px;
	font-family: inherit;
	background: var(--paper);
}
.ym-form-req { color: var(--accent); }
.ym-form-check-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1px;
	background: var(--line);
	border: 1px solid var(--line);
}
.ym-form-check-grid label {
	background: var(--paper);
	padding: 14px 16px;
	display: flex;
	align-items: center;
	gap: 10px;
	font-size: 14px;
	cursor: pointer;
}
.ym-form-agree {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	padding: 16px;
	background: var(--paper-warm);
	font-size: 13px;
	line-height: 1.6;
	color: var(--ink-mid);
	margin-bottom: 24px;
	cursor: pointer;
}
.ym-contact-info {
	background: var(--paper);
	border: 1px solid var(--line);
	border-collapse: collapse;
	width: 100%;
	font-size: 14px;
}
.ym-contact-info tr { border-bottom: 1px solid var(--line); }
.ym-contact-info tr:last-child { border-bottom: none; }
.ym-contact-info th {
	text-align: left;
	padding: 16px;
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
	font-weight: 400;
	text-transform: uppercase;
	width: 120px;
}
.ym-contact-info td { padding: 16px; }
.ym-contact-side-note {
	font-size: 13px;
	color: var(--ink-sub);
	line-height: 1.7;
	margin: 24px 0 0;
}

/* ============================================================
   Single (post) page
   ============================================================ */
.ym-single-wrap { padding: 64px 64px 96px; background: var(--paper); }
.ym-single-side {
	position: sticky;
	top: 80px;
}
.ym-breadcrumb {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.08em;
	color: var(--ink-sub);
	margin-bottom: 32px;
	line-height: 1.8;
}
.ym-breadcrumb a { color: var(--ink-sub); }
.ym-breadcrumb .is-current { color: var(--ink); }
.ym-single-meta-table {
	border-collapse: collapse;
	width: 100%;
	font-size: 13px;
}
.ym-single-meta-table tr:first-child { border-top: 1px solid var(--ink); }
.ym-single-meta-table tr { border-bottom: 1px solid var(--line); }
.ym-single-meta-table th {
	text-align: left;
	padding: 14px 0;
	font-family: var(--mono);
	font-size: 10px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
	font-weight: 400;
	width: 80px;
	text-transform: uppercase;
}
.ym-single-meta-table td {
	padding: 14px 0;
	font-family: var(--mono);
	font-size: 13px;
}
.ym-single-meta-table td a { color: var(--accent); font-family: var(--sans); }
.ym-single-meta-table td.is-author { font-weight: 500; font-family: var(--sans); }

.ym-single-share {
	margin-top: 40px;
	padding-top: 24px;
	border-top: 1px solid var(--line);
}
.ym-single-share-label {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
	margin-bottom: 12px;
}
.ym-single-share-list { display: flex; gap: 8px; }
.ym-single-share-list a {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 36px; height: 36px;
	border: 1px solid var(--line);
	font-size: 12px;
	font-family: var(--mono);
}

.ym-single-header {
	border-top: 1px solid var(--ink);
	padding-top: 32px;
	margin-bottom: 48px;
}
.ym-single-eyebrow {
	font-family: var(--mono);
	font-size: 12px;
	letter-spacing: 0.16em;
	color: var(--accent);
	margin-bottom: 24px;
	text-transform: uppercase;
}
.ym-single-title {
	font-family: var(--sans);
	font-weight: 500;
	font-size: 44px;
	line-height: 1.35;
	letter-spacing: -0.01em;
	margin: 0 0 24px;
	color: var(--ink);
}
.ym-single-excerpt {
	font-size: 17px;
	line-height: 1.8;
	color: var(--ink-sub);
	margin: 0;
	max-width: 820px;
}
.ym-entry-content {
	font-size: 17px;
	line-height: 1.9;
	color: var(--ink);
	max-width: 820px;
}
.ym-entry-content p { margin: 0 0 24px; }
.ym-entry-content h2 {
	font-family: var(--sans);
	font-weight: 500;
	font-size: 28px;
	line-height: 1.4;
	margin: 56px 0 20px;
	padding-top: 24px;
	border-top: 1px solid var(--line);
}
.ym-entry-content h3 {
	font-family: var(--sans);
	font-weight: 600;
	font-size: 20px;
	line-height: 1.5;
	margin: 40px 0 16px;
}
.ym-entry-content blockquote {
	margin: 32px 0;
	padding: 24px 32px;
	background: var(--paper-warm);
	border-left: 3px solid var(--accent);
	font-size: 18px;
	line-height: 1.8;
	color: var(--ink);
}
.ym-entry-content ul {
	margin: 0 0 24px;
	padding-left: 0;
	list-style: none;
}
.ym-entry-content ul > li {
	padding: 8px 0 8px 24px;
	position: relative;
	border-bottom: 1px solid var(--paper-warm);
}
.ym-entry-content ul > li::before {
	content: '';
	position: absolute;
	left: 0;
	top: 20px;
	width: 8px; height: 1px;
	background: var(--accent);
}
.ym-entry-content ol {
	margin: 0 0 24px;
	padding-left: 1.5em;
}
.ym-entry-content ol > li { padding: 4px 0; }
.ym-entry-content a {
	color: var(--accent);
	border-bottom: 1px solid var(--accent);
}
.ym-entry-content code {
	background: var(--paper-warm);
	padding: 2px 6px;
	font-family: var(--mono);
	font-size: 14px;
}
.ym-entry-content figure { margin: 40px 0; }
.ym-entry-content figcaption {
	font-family: var(--mono);
	font-size: 12px;
	color: var(--ink-sub);
	margin-top: 8px;
}

/* Tags */
.ym-single-tags {
	margin: 56px 0 0;
	padding-top: 24px;
	border-top: 1px solid var(--line);
}
.ym-single-tags-label {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
	margin-bottom: 12px;
	text-transform: uppercase;
}
.ym-single-tags-list {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}
.ym-single-tags-list a {
	display: inline-block;
	padding: 6px 12px;
	border: 1px solid var(--line);
	font-family: var(--mono);
	font-size: 12px;
}

/* Prev / Next */
.ym-prev-next {
	margin: 56px 0 0;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1px;
	background: var(--line);
	border: 1px solid var(--line);
}
.ym-prev-next a {
	background: var(--paper);
	padding: 24px;
	display: flex;
	flex-direction: column;
	gap: 6px;
}
.ym-prev-next a .ym-pn-label {
	font-family: var(--mono);
	font-size: 11px;
	letter-spacing: 0.12em;
	color: var(--ink-sub);
}
.ym-prev-next a .ym-pn-title {
	font-size: 15px;
	line-height: 1.5;
	color: var(--ink);
}
.ym-prev-next a.is-next { text-align: right; }
.ym-single-back {
	margin: 40px 0 0;
}
.ym-single-back a {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-family: var(--mono);
	font-size: 13px;
	color: var(--accent);
	border-bottom: 1px solid var(--accent);
	padding-bottom: 2px;
}

/* ============================================================
   Q&A single-cat archive (category.php / category-*.php)
   ============================================================ */
.ym-qa-archive ul {
	list-style: none;
	padding: 0;
	margin: 0;
	border-top: 1px solid var(--ink);
}
.ym-qa-archive li {
	border-bottom: 1px solid var(--line);
	padding: 20px 0;
	display: grid;
	grid-template-columns: 24px 1fr 24px;
	gap: 16px;
	align-items: baseline;
}
.ym-qa-archive li > span {
	font-family: var(--mono);
	font-size: 13px;
	color: var(--accent);
	font-weight: 500;
}
.ym-qa-archive li a {
	font-size: 16px;
	line-height: 1.55;
	color: var(--ink);
}
.ym-qa-archive li::after {
	content: '→';
	color: var(--ink-sub);
	text-align: right;
}

/* Series hub card (category-*.php) */
.ym-series-hub {
	margin: 32px 0;
	background: var(--paper);
	border: 1px solid var(--ink);
	padding: 24px 28px;
}
.ym-series-hub a {
	display: block;
	font-size: 18px;
	font-weight: 500;
	color: var(--ink);
	line-height: 1.5;
}
.ym-series-hub a::before {
	content: '★ ';
	color: var(--accent);
	font-weight: 400;
}

/* ============================================================
   Pagination
   ============================================================ */
.ym-pagination {
	margin-top: 48px;
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 12px;
}
.ym-pagination .page-numbers {
	display: inline-flex;
	align-items: center;
	padding: 10px 16px;
	font-family: var(--mono);
	font-size: 13px;
	border: 1px solid var(--line);
	background: var(--paper);
	color: var(--ink);
}
.ym-pagination .page-numbers.current {
	background: var(--ink);
	color: #fff;
	border-color: var(--ink);
}
.ym-pagination .page-numbers.dots { border: none; }

.ym-no-posts {
	padding: 48px 0;
	font-size: 15px;
	color: var(--ink-sub);
}

/* ============================================================
   404
   ============================================================ */
.ym-404 {
	padding: 128px 64px;
	text-align: center;
}
.ym-404 .ym-h1 {
	font-size: 96px;
	margin-bottom: 32px;
}
.ym-404 .ym-page-lead {
	max-width: 720px;
	margin: 0 auto 40px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.ym-footer {
	background: var(--dark-deep);
	color: var(--ink-light);
	padding: 48px 64px;
	font-size: 13px;
}
.ym-footer-inner {
	max-width: 1600px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 32px;
	flex-wrap: wrap;
}
.ym-footer-brand {
	display: flex;
	align-items: center;
	gap: 16px;
}
.ym-footer-brand img { width: 32px; height: 32px; object-fit: contain; }
.ym-footer-brand-name {
	color: #f4f4f4;
	font-weight: 500;
	font-size: 14px;
}
.ym-footer-copy {
	font-family: var(--mono);
	font-size: 12px;
	margin-top: 4px;
}
.ym-footer-nav {
	display: flex;
	gap: 24px;
	font-family: var(--mono);
	font-size: 12px;
}
.ym-footer-nav a:hover { color: #fff; }

/* ============================================================
   Responsive
   ============================================================ */
/* Tablet (≤1024px) */
@media (max-width: 1024px) {
	.ym-section { padding: 64px 32px; }
	.ym-hero { padding: 56px 32px 72px; }
	.ym-hero-mark { width: 440px; height: 440px; top: -60px; right: -100px; opacity: 0.35; }
	.ym-contact-cta { padding: 80px 32px; }
	.ym-footer { padding: 32px; }
	.ym-page-hero { padding: 56px 32px; }
	.ym-single-wrap { padding: 56px 32px; }
	.ym-h1 { font-size: 64px; margin-bottom: 40px; }
	.ym-h2 { font-size: 32px; }
	.ym-h2-sm { font-size: 28px; }
	.ym-h2-contact { font-size: 42px; }
	.ym-page-h1 { font-size: 48px; }
	.ym-single-title { font-size: 32px; }
	.ym-grid-13 { grid-template-columns: 1fr; gap: 32px; }
	.ym-grid-hero { grid-template-columns: 1fr; gap: 32px; }
	.ym-services-grid { grid-template-columns: repeat(2, 1fr); }
	.ym-qa-grid-5 { grid-template-columns: repeat(2, 1fr); }
	.ym-qa-grid-4 { grid-template-columns: repeat(2, 1fr); }
	.ym-nav .ym-nav-item { display: none; }
	.ym-hamburger { display: flex; }
	.ym-footer-inner { width: 100%; }
	.ym-single-side { position: static; }
	.ym-blog-item-cat { grid-template-columns: 120px 1fr 24px; }
	.ym-blog-item-cat .ym-blog-cat { grid-column: 1 / -1; margin-top: 4px; }
	.ym-form-row { grid-template-columns: 1fr; }
	.ym-contact-page-form { padding: 32px; }
	.ym-404 { padding: 80px 32px; }
}

/* Mobile (≤640px) */
@media (max-width: 640px) {
	.ym-section { padding: 56px 20px; }
	.ym-hero { padding: 40px 20px 56px; }
	.ym-contact-cta { padding: 64px 20px; }
	.ym-footer { padding: 24px 20px; flex-direction: column; align-items: flex-start; }
	.ym-page-hero { padding: 40px 20px; }
	.ym-single-wrap { padding: 40px 20px; }
	.ym-h1 { font-size: 40px; line-height: 1.15; margin-bottom: 32px; letter-spacing: -0.02em; }
	.ym-h2 { font-size: 26px; line-height: 1.3; }
	.ym-h2-sm { font-size: 22px; }
	.ym-h2-contact { font-size: 32px; }
	.ym-page-h1 { font-size: 34px; }
	.ym-single-title { font-size: 26px; }
	.ym-hero-para { font-size: 16px; }
	.ym-services-grid { grid-template-columns: 1fr; }
	.ym-qa-grid-5 { grid-template-columns: 1fr; }
	.ym-qa-grid-4 { grid-template-columns: 1fr; }
	.ym-service-card { min-height: 0; padding: 24px; }
	.ym-blog-item { grid-template-columns: 1fr; gap: 8px; padding: 20px 0; }
	.ym-blog-item .ym-blog-arrow { display: none; }
	.ym-blog-title { font-size: 16px; }
	.ym-cta { min-width: 0; width: 100%; padding: 16px 20px; font-size: 15px; }
	.ym-tag-row { max-width: 100%; }
	.ym-footer-inner { flex-wrap: wrap; }
	.ym-brand-tagline { display: none; }
	.ym-cta-header { padding: 0 16px; font-size: 13px; }
	.ym-hero-mark { width: 280px; height: 280px; top: -40px; right: -60px; opacity: 0.3; }
	.ym-404 .ym-h1 { font-size: 56px; }
	.ym-prev-next { grid-template-columns: 1fr; }
	.ym-prev-next a.is-next { text-align: left; }
	.ym-contact-page-form { padding: 20px; }
	.ym-form-check-grid { grid-template-columns: 1fr; }
	.ym-qa-archive li { grid-template-columns: 20px 1fr; }
	.ym-qa-archive li::after { display: none; }
}