/* ==========================================================================
   Lumen theme stylesheet
   Design tokens: white canvas, off-white sections, deep teal accent (#0F7B6C)
   Type: Fraunces (display/serif headings) + Inter (body/UI)
   ========================================================================== */

:root {
	--color-bg: #ffffff;
	--color-bg-soft: #fafaf9;
	--color-ink: #16181d;
	--color-ink-soft: #4b4f58;
	--color-muted: #767b86;
	--color-border: #e8e8e6;
	--color-border-strong: #d9d9d6;
	--color-accent: #0f7b6c;
	--color-accent-ink: #0b5c51;
	--color-accent-tint: #e6f2f0;
	--color-accent-tint-strong: #cfe8e4;

	--font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
	--font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

	--container-w: 1160px;
	--radius-sm: 8px;
	--radius-md: 14px;
	--radius-lg: 20px;
	--shadow-sm: 0 1px 2px rgba(22, 24, 29, 0.05);
	--shadow-md: 0 10px 30px rgba(22, 24, 29, 0.08);
	--header-h: 76px;
	--transition: 180ms cubic-bezier(.4, 0, .2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
body, h1, h2, h3, h4, p, figure, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; padding: 0; }
input, textarea { font: inherit; }

body {
	font-family: var(--font-body);
	color: var(--color-ink);
	background: var(--color-bg);
	font-size: 16px;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 28px; }
@media (max-width: 480px) { .container { padding: 0 18px; } }

:focus-visible {
	outline: 2px solid var(--color-accent);
	outline-offset: 3px;
}

.screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	white-space: nowrap;
}
.skip-link {
	position: fixed; top: -100px; left: 12px; z-index: 9999;
	background: var(--color-ink); color: #fff; padding: 10px 18px;
	border-radius: var(--radius-sm);
	transition: top var(--transition);
}
.skip-link:focus { top: 12px; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; color: var(--color-ink); letter-spacing: -0.01em; }

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header {
	position: sticky; top: 0; z-index: 500;
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: saturate(180%) blur(10px);
	border-bottom: 1px solid transparent;
	transition: border-color var(--transition), box-shadow var(--transition);
}
.site-header.is-scrolled { border-bottom-color: var(--color-border); box-shadow: var(--shadow-sm); }

.site-header-inner {
	max-width: var(--container-w); margin: 0 auto; padding: 0 28px;
	height: var(--header-h);
	display: flex; align-items: center; gap: 32px;
}
@media (max-width: 480px) { .site-header-inner { padding: 0 18px; } }

.site-branding { flex: 0 0 auto; }
.site-title-link { display: flex; flex-direction: column; }
.site-title { font-family: var(--font-display); font-size: 22px; font-weight: 700; }
.site-description { font-size: 12px; color: var(--color-muted); }
.custom-logo { max-height: 40px; width: auto; }
@media (max-width: 400px) {
	.site-title { font-size: 18px; }
	.site-description { display: none; }
	.site-header-inner { gap: 12px; }
	.header-actions { gap: 0; }
}

.main-navigation { flex: 1 1 auto; display: none; }
@media (min-width: 960px) { .main-navigation { display: block; } }

.primary-menu { display: flex; align-items: center; gap: 4px; }
.primary-menu > .menu-item { position: relative; }
.primary-menu > .menu-item > a {
	display: flex; align-items: center; gap: 6px;
	padding: 10px 14px; border-radius: var(--radius-sm);
	font-size: 14.5px; font-weight: 500; color: var(--color-ink-soft);
	transition: color var(--transition), background var(--transition);
}
.primary-menu > .menu-item > a:hover,
.primary-menu > .menu-item.menu-item-has-mega.is-open > a { color: var(--color-ink); background: var(--color-bg-soft); }
.primary-menu > .menu-item.current-menu-item > a,
.primary-menu > .menu-item.current_page_item > a { color: var(--color-ink); font-weight: 600; }
.primary-menu > .menu-item.current-menu-item > a::after,
.primary-menu > .menu-item.current_page_item > a::after {
	content: ''; position: absolute; left: 14px; right: 14px; bottom: 4px;
	height: 2px; border-radius: 2px; background: var(--color-accent);
}
.menu-caret { transition: transform var(--transition); opacity: .7; }
.menu-item-has-children.is-open > a .menu-caret,
.menu-item-has-mega.is-open > a .menu-caret { transform: rotate(180deg); }

/* plain dropdown (no mega) */
.sub-menu {
	position: absolute; top: 100%; left: 0; margin-top: 6px;
	min-width: 220px; background: #fff; border: 1px solid var(--color-border);
	border-radius: var(--radius-md); box-shadow: var(--shadow-md);
	padding: 8px; opacity: 0; visibility: hidden; transform: translateY(6px);
	transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.menu-item-has-children:hover > .sub-menu,
.menu-item-has-children:focus-within > .sub-menu {
	opacity: 1; visibility: visible; transform: translateY(0);
}
.sub-menu li a { display: block; padding: 9px 12px; border-radius: var(--radius-sm); font-size: 14px; }
.sub-menu li a:hover { background: var(--color-bg-soft); }

/* mega menu panel */
.mega-panel {
	position: absolute; top: 100%; left: 50%; transform: translate(-50%, 6px);
	margin-top: 10px; width: min(640px, 86vw);
	background: #fff; border: 1px solid var(--color-border);
	border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
	opacity: 0; visibility: hidden; pointer-events: none;
	transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
	z-index: 50;
}
.menu-item-has-mega:hover > .mega-panel,
.menu-item-has-mega:focus-within > .mega-panel,
.menu-item-has-mega.is-open > .mega-panel {
	opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0);
}
.mega-panel-inner { display: grid; grid-template-columns: 1fr 1.4fr; gap: 0; padding: 26px; }
.mega-panel-label {
	display: block; font-size: 11px; font-weight: 600; letter-spacing: .08em;
	text-transform: uppercase; color: var(--color-muted); margin-bottom: 12px;
}
.mega-panel-links { padding-right: 24px; border-right: 1px solid var(--color-border); }
.mega-panel-links ul li a { display: block; padding: 7px 0; font-size: 14.5px; color: var(--color-ink-soft); }
.mega-panel-links ul li a:hover { color: var(--color-accent); }
.mega-panel-featured { padding-left: 24px; }
.mega-panel-posts li + li { margin-top: 14px; }
.mega-panel-posts a { display: flex; gap: 12px; align-items: flex-start; }
.mega-thumb { flex: 0 0 auto; width: 64px; height: 44px; border-radius: var(--radius-sm); overflow: hidden; background: var(--color-bg-soft); }
.mega-thumb img { width: 100%; height: 100%; object-fit: cover; }
.mega-post-info { display: flex; flex-direction: column; gap: 3px; }
.mega-post-title { font-size: 13.5px; font-weight: 500; color: var(--color-ink); line-height: 1.35; }
.mega-post-date { font-size: 11.5px; color: var(--color-muted); }
.mega-panel-posts a:hover .mega-post-title { color: var(--color-accent); }

/* header actions: search + hamburger */
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 6px; padding-left: 18px; position: relative; }
.header-actions::before {
	content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
	width: 1px; height: 22px; background: var(--color-border);
}
@media (max-width: 959px) { .header-actions::before { display: none; } }
.icon-button {
	display: flex; align-items: center; justify-content: center;
	width: 40px; height: 40px; border-radius: 50%;
	color: var(--color-ink-soft); transition: background var(--transition), color var(--transition);
}
.icon-button:hover { background: var(--color-bg-soft); color: var(--color-ink); }

.header-search { max-height: 0; overflow: hidden; transition: max-height var(--transition); border-bottom: 1px solid transparent; }
.header-search.is-open { max-height: 90px; border-bottom-color: var(--color-border); }
.header-search-inner { max-width: var(--container-w); margin: 0 auto; padding: 16px 28px; }
@media (max-width: 480px) { .header-search-inner { padding: 14px 18px; } }
.search-form { display: flex; align-items: center; gap: 10px; background: var(--color-bg-soft); border-radius: var(--radius-md); padding: 4px 6px 4px 16px; }
.search-field { flex: 1; background: none; border: none; padding: 10px 0; font-size: 15px; }
.search-field:focus { outline: none; }
.search-submit { width: 40px; height: 40px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--color-ink-soft); }
.search-submit:hover { color: var(--color-accent); }

/* hamburger */
.hamburger { display: flex; }
@media (min-width: 960px) { .hamburger { display: none; } }
.hamburger-box { position: relative; width: 18px; height: 13px; display: block; }
.hamburger-line {
	position: absolute; left: 0; width: 100%; height: 2px; border-radius: 2px;
	background: currentColor; transition: transform var(--transition), opacity var(--transition), top var(--transition);
}
.hamburger-line:nth-child(1) { top: 0; }
.hamburger-line:nth-child(2) { top: 5.5px; }
.hamburger-line:nth-child(3) { top: 11px; }
.hamburger.is-active .hamburger-line:nth-child(1) { top: 5.5px; transform: rotate(45deg); }
.hamburger.is-active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger.is-active .hamburger-line:nth-child(3) { top: 5.5px; transform: rotate(-45deg); }

/* mobile slide-in panel */
.mobile-menu-overlay {
	position: fixed; inset: 0; background: rgba(17, 18, 22, 0.4);
	opacity: 0; visibility: hidden; transition: opacity var(--transition), visibility var(--transition);
	z-index: 590;
}
.mobile-menu-overlay.is-open { opacity: 1; visibility: visible; }
.mobile-menu-panel {
	position: fixed; top: 0; right: 0; height: 100%; width: min(360px, 86vw);
	background: #fff; z-index: 600; box-shadow: -18px 0 40px rgba(0,0,0,.12);
	transform: translateX(100%); transition: transform 260ms cubic-bezier(.4,0,.2,1);
	overflow-y: auto;
}
.mobile-menu-panel.is-open { transform: translateX(0); }
.mobile-menu-panel-inner { padding: calc(var(--header-h) + 12px) 24px 40px; }
.mobile-menu-item { border-bottom: 1px solid var(--color-border); }
.mobile-menu-row { display: flex; align-items: center; justify-content: space-between; }
.mobile-menu-row a { display: block; padding: 16px 0; font-size: 16px; font-weight: 500; flex: 1; }
.mobile-submenu-toggle { width: 40px; height: 48px; display: flex; align-items: center; justify-content: center; color: var(--color-muted); transition: transform var(--transition); }
.mobile-menu-item.is-open .mobile-submenu-toggle { transform: rotate(180deg); color: var(--color-ink); }
.mobile-submenu { max-height: 0; overflow: hidden; transition: max-height 260ms ease; }
.mobile-submenu li a { display: block; padding: 10px 0 10px 14px; font-size: 14.5px; color: var(--color-ink-soft); border-left: 2px solid var(--color-border); }
body.menu-open { overflow: hidden; }

/* ==========================================================================
   Layout: main content + sidebar
   ========================================================================== */
.site-main { padding: 48px 0 80px; }
.site-main.has-sidebar { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 56px; align-items: start; }
@media (max-width: 900px) { .site-main.has-sidebar { grid-template-columns: minmax(0, 1fr); gap: 40px; } }
.content-area-full { max-width: 760px; margin: 0 auto; }

.archive-header { margin-bottom: 40px; max-width: 640px; }
.archive-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 10px; }
.archive-eyebrow::before { content: ''; display: inline-block; width: 16px; height: 2px; border-radius: 2px; background: var(--color-accent); }
.archive-title { font-size: clamp(28px, 4vw, 40px); }
.archive-title span { color: var(--color-accent); }
.archive-description { margin-top: 12px; color: var(--color-ink-soft); font-size: 16px; }

/* post grid / cards */
.post-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px 28px; }
@media (max-width: 700px) { .post-grid { grid-template-columns: 1fr; } }
.has-sidebar .post-grid { grid-template-columns: 1fr; }

.post-card { display: flex; flex-direction: column; }
.has-sidebar .post-card { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding-bottom: 28px; border-bottom: 1px solid var(--color-border); }
@media (max-width: 560px) { .has-sidebar .post-card { grid-template-columns: 1fr; } }
.post-thumbnail { display: block; border-radius: var(--radius-md); overflow: hidden; background: var(--color-bg-soft); aspect-ratio: 16/11; }
.post-thumbnail img { width: 100%; height: auto; object-fit: cover; transition: transform 400ms ease; }
.post-card:hover .post-thumbnail img { transform: scale(1.04); }
.post-card-body { padding-top: 16px; }
.has-sidebar .post-card-body { padding-top: 0; }
.taxonomy-badge {
	display: inline-flex; align-items: center; font-size: 11.5px; font-weight: 600;
	letter-spacing: .04em; text-transform: uppercase; color: var(--color-accent-ink);
	background: var(--color-accent-tint); padding: 4px 10px; border-radius: 20px; margin-bottom: 12px;
}
.post-card .entry-title { font-size: 20px; margin-bottom: 8px; }
.post-card .entry-title a:hover { color: var(--color-accent); }
.entry-meta { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--color-muted); flex-wrap: wrap; }
.entry-meta span + span::before { content: '\2022'; margin-right: 8px; }
.entry-summary { margin-top: 10px; color: var(--color-ink-soft); font-size: 15px; }
.read-more {
	display: inline-flex; align-items: center; gap: 7px; margin-top: 14px;
	font-size: 13.5px; font-weight: 600; color: var(--color-accent-ink);
}
.read-more svg { transition: transform var(--transition); }
.read-more:hover svg { transform: translateX(3px); }

/* pagination */
.pagination { margin-top: 48px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.pagination .page-numbers {
	display: inline-flex; align-items: center; justify-content: center;
	min-width: 38px; height: 38px; padding: 0 10px; border-radius: var(--radius-sm);
	font-size: 14px; color: var(--color-ink-soft); border: 1px solid transparent;
}
.pagination .page-numbers:hover { border-color: var(--color-border); }
.pagination .page-numbers.current { background: var(--color-ink); color: #fff; }

/* no results */
.no-results { text-align: center; padding: 60px 20px; max-width: 480px; margin: 0 auto; }
.no-results h2 { font-size: 26px; margin-bottom: 10px; }
.no-results p { color: var(--color-ink-soft); margin-bottom: 20px; }
.error-code { display: block; font-family: var(--font-display); font-size: 72px; color: var(--color-accent-tint-strong); font-weight: 700; }
.error-404-page .search-form { margin: 0 auto 20px; max-width: 380px; }
.error-404-page .read-more { justify-content: center; }

/* ==========================================================================
   Sidebar widgets
   ========================================================================== */
.widget-area { display: flex; flex-direction: column; gap: 36px; }
.widget { padding-top: 4px; }
.widget-title { font-size: 15px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--color-border); }
.widget ul li { padding: 7px 0; font-size: 14.5px; color: var(--color-ink-soft); }
.widget select, .widget input[type="text"], .widget input[type="search"] {
	width: 100%; padding: 10px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg-soft);
}

/* ==========================================================================
   Single post (blog)
   ========================================================================== */
.single-entry .entry-header { max-width: 720px; margin-bottom: 28px; }
.single-entry .entry-title { font-size: clamp(28px, 4.4vw, 42px); margin: 12px 0 16px; }
.single-entry .post-thumbnail { margin-bottom: 32px; border-radius: var(--radius-lg); aspect-ratio: 16/9; }
.single-entry .post-thumbnail img { width: 100%; height: 100%; object-fit: cover; }

.entry-content { max-width: 720px; font-size: 17px; color: var(--color-ink-soft); overflow-wrap: break-word; word-wrap: break-word; }
.entry-content > * + * { margin-top: 1.3em; }
.entry-content h2 { font-size: 26px; color: var(--color-ink); margin-top: 2em; scroll-margin-top: 100px; }
.entry-content h3 { font-size: 21px; color: var(--color-ink); margin-top: 1.8em; scroll-margin-top: 100px; }
.entry-content a { color: var(--color-accent-ink); text-decoration: underline; text-decoration-color: var(--color-accent-tint-strong); text-underline-offset: 3px; }
.entry-content a:hover { text-decoration-color: currentColor; }
.entry-content blockquote {
	border-left: 3px solid var(--color-accent); padding-left: 20px; font-family: var(--font-display);
	font-size: 20px; color: var(--color-ink); font-style: italic;
}
.entry-content img { border-radius: var(--radius-md); }
.entry-content ul, .entry-content ol { padding-left: 1.4em; list-style: disc; }
.entry-content ol { list-style: decimal; }
.entry-content code { background: var(--color-bg-soft); padding: 2px 6px; border-radius: 5px; font-size: 0.9em; }
.entry-content pre { background: var(--color-ink); color: #f4f4f2; padding: 20px; border-radius: var(--radius-md); overflow-x: auto; }
.entry-content pre code { background: none; padding: 0; color: inherit; }
.entry-content table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
.entry-content table th, .entry-content table td { padding: 10px 14px; border: 1px solid var(--color-border); font-size: 15px; }
.entry-content iframe, .entry-content embed, .entry-content object, .entry-content video { max-width: 100%; }

.entry-tags { margin-top: 32px; display: flex; gap: 8px; flex-wrap: wrap; font-size: 13px; }
.entry-tags a { border: 1px solid var(--color-border); padding: 5px 12px; border-radius: 20px; color: var(--color-ink-soft); }
.entry-tags a:hover { border-color: var(--color-accent); color: var(--color-accent-ink); }

.author-box {
	max-width: 720px; margin-top: 44px; padding: 24px; background: var(--color-bg-soft);
	border-radius: var(--radius-lg); display: flex; gap: 16px; align-items: flex-start;
}
.author-box img { border-radius: 50%; }
.author-box-label { font-size: 12px; color: var(--color-muted); }
.author-box-name { font-size: 17px; margin: 2px 0 6px; }
.author-box-bio { font-size: 14.5px; color: var(--color-ink-soft); }

/* comments */
.comments-area { max-width: 720px; margin-top: 56px; }
.comments-title { font-size: 22px; margin-bottom: 24px; }
.comment-list > li { margin-bottom: 24px; }
.comment-list .children { margin-left: 36px; margin-top: 20px; }
@media (max-width: 560px) {
	.comment-list .children { margin-left: 16px; }
	.comment-body { gap: 10px; }
	.comment-body .avatar { width: 36px; height: 36px; }
}
.comment-body { display: flex; gap: 14px; }
.comment-body .avatar { border-radius: 50%; flex-shrink: 0; }
.comment-author { font-weight: 600; font-size: 14.5px; }
.comment-metadata { font-size: 12.5px; color: var(--color-muted); margin-bottom: 8px; display: block; }
.comment-content p { font-size: 14.5px; color: var(--color-ink-soft); }
.comment-reply-link { font-size: 12.5px; font-weight: 600; color: var(--color-accent-ink); }
#respond { margin-top: 32px; }
.comment-form p { margin-bottom: 16px; }
.comment-form label { display: block; font-size: 13.5px; font-weight: 500; margin-bottom: 6px; }
.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"], .comment-form textarea {
	width: 100%; padding: 12px 14px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-bg-soft);
}
.comment-form textarea { resize: vertical; }

/* ==========================================================================
   Guides: archive hub
   ========================================================================== */
.guides-hero { text-align: center; max-width: 640px; margin-left: auto; margin-right: auto; }
.guide-category-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 44px; }
.chip { padding: 8px 18px; border-radius: 20px; border: 1px solid var(--color-border); font-size: 13.5px; font-weight: 500; color: var(--color-ink-soft); transition: all var(--transition); }
.chip:hover { border-color: var(--color-accent); color: var(--color-accent-ink); }
.chip.is-active { background: var(--color-ink); border-color: var(--color-ink); color: #fff; }
.guides-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .guides-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .guides-grid { grid-template-columns: 1fr; } }
.guides-grid .post-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 16px; transition: box-shadow var(--transition), transform var(--transition); }
.guides-grid .post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.guides-grid .post-thumbnail { margin: -16px -16px 16px; border-radius: var(--radius-lg) var(--radius-lg) 0 0; width: calc(100% + 32px); }

/* ==========================================================================
   Guides: single guide with sticky TOC + progress
   ========================================================================== */
.has-toc { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 56px; align-items: start; }
@media (max-width: 980px) { .has-toc { grid-template-columns: minmax(0, 1fr); } }
.guide-toc-aside { position: sticky; top: calc(var(--header-h) + 24px); }
@media (max-width: 980px) { .guide-toc-aside { position: static; margin-top: 8px; } }
.guide-toc-sticky { border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 20px; }
.guide-toc-summary {
	display: flex; align-items: center; justify-content: space-between; gap: 10px;
	cursor: pointer; list-style: none; margin-bottom: 14px;
}
.guide-toc-summary::-webkit-details-marker { display: none; }
.details-chevron { color: var(--color-muted); transition: transform var(--transition); flex-shrink: 0; }
.guide-toc-sticky[open] .details-chevron { transform: rotate(180deg); }
.guide-progress-track { height: 4px; background: var(--color-border); border-radius: 4px; overflow: hidden; margin-bottom: 18px; }
.guide-progress-fill { height: 100%; width: 0%; background: var(--color-accent); border-radius: 4px; transition: width 120ms linear; }
.guide-toc-label { display: block; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--color-muted); }
.guide-toc { display: flex; flex-direction: column; gap: 3px; max-height: 60vh; overflow-y: auto; }
.guide-toc-link { font-size: 13.5px; color: var(--color-ink-soft); padding: 7px 10px; border-left: 2px solid var(--color-border); border-radius: 0 6px 6px 0; transition: all var(--transition); }
.guide-toc-link.toc-level-h3 { padding-left: 22px; font-size: 13px; }
.guide-toc-link:hover { color: var(--color-ink); background: var(--color-bg-soft); }
.guide-toc-link.is-active { color: var(--color-accent-ink); border-left-color: var(--color-accent); background: var(--color-accent-tint); font-weight: 500; }

.guide-nav-footer { max-width: 720px; margin-top: 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .guide-nav-footer { grid-template-columns: 1fr; } }
.guide-nav-link { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 16px 18px; display: flex; flex-direction: column; gap: 6px; transition: border-color var(--transition); }
.guide-nav-link:hover { border-color: var(--color-accent); }
.guide-nav-link.next { text-align: right; align-items: flex-end; }
.guide-nav-label { font-size: 12px; color: var(--color-muted); font-weight: 600; }
.guide-nav-title { font-size: 14.5px; font-weight: 500; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--color-bg-soft); border-top: 1px solid var(--color-border); margin-top: 80px; }
.footer-widgets { max-width: var(--container-w); margin: 0 auto; padding: 56px 28px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
@media (max-width: 860px) { .footer-widgets { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .footer-widgets { grid-template-columns: 1fr; padding: 40px 18px; gap: 28px; } }
.footer-widget-col .widget-title { font-size: 14px; border: none; padding-bottom: 0; }
.footer-widget-col p { font-size: 14px; color: var(--color-ink-soft); }
.footer-menu li a { display: block; padding: 6px 0; font-size: 14px; color: var(--color-ink-soft); }
.footer-menu li a:hover { color: var(--color-accent); }
.site-info {
	max-width: var(--container-w); margin: 0 auto; padding: 24px 28px;
	border-top: 1px solid var(--color-border); display: flex; align-items: center;
	justify-content: space-between; font-size: 13px; color: var(--color-muted);
}
@media (max-width: 520px) { .site-info { padding: 20px 18px; flex-direction: column; gap: 10px; text-align: center; } }
.back-to-top:hover { color: var(--color-accent); }

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */
.lumen-breadcrumbs { margin-bottom: 24px; }
.lumen-breadcrumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.lumen-breadcrumbs li { font-size: 13px; color: var(--color-muted); display: flex; align-items: center; gap: 8px; }
.lumen-breadcrumbs a { color: var(--color-muted); }
.lumen-breadcrumbs a:hover { color: var(--color-accent-ink); }
.lumen-breadcrumbs li[aria-hidden] { color: var(--color-border-strong); }
.lumen-breadcrumbs span[aria-current] { color: var(--color-ink-soft); font-weight: 500; }

/* ==========================================================================
   Guide meta badges (Difficulty / Estimated Time)
   ========================================================================== */
.guide-meta-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.guide-meta-badge {
	display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 600;
	padding: 5px 12px; border-radius: 20px; background: var(--color-bg-soft); color: var(--color-ink-soft);
}
.guide-meta-badge.difficulty-beginner { background: #e7f3ea; color: #1f7a3d; }
.guide-meta-badge.difficulty-intermediate { background: #fef3e2; color: #a05a00; }
.guide-meta-badge.difficulty-advanced { background: #fde8e8; color: #b3261e; }
.guide-meta-badge.guide-meta-time { background: var(--color-accent-tint); color: var(--color-accent-ink); }

/* ==========================================================================
   Related guides
   ========================================================================== */
.related-guides { max-width: 100%; margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--color-border); }
.related-guides-title { font-size: 24px; margin-top: 6px; margin-bottom: 28px; }
.related-guides-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .related-guides-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .related-guides-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Homepage hero
   ========================================================================== */
.home-hero { position: relative; overflow: hidden; padding: 80px 0 60px; border-bottom: 1px solid var(--color-border); }
.home-hero::before {
	content: ''; position: absolute; top: -220px; left: 50%; transform: translateX(-50%);
	width: 720px; height: 560px; border-radius: 50%;
	background: radial-gradient(closest-side, var(--color-accent-tint), rgba(255,255,255,0));
	pointer-events: none; z-index: 0;
}
@media (max-width: 640px) { .home-hero { padding: 44px 0 36px; } .home-hero::before { width: 480px; height: 380px; top: -160px; } }
.home-hero-inner { max-width: 640px; text-align: center; margin: 0 auto; position: relative; z-index: 1; }
.home-hero-title { font-size: clamp(32px, 5vw, 48px); margin-top: 10px; }
.home-hero-desc { margin-top: 16px; font-size: 17px; color: var(--color-ink-soft); }
.home-hero-topics { margin-top: 22px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.hero-topic-pill {
	font-size: 12.5px; font-weight: 500; padding: 7px 15px; border-radius: 20px;
	background: var(--color-accent-tint); color: var(--color-accent-ink);
	transition: background var(--transition);
}
.hero-topic-pill:hover { background: var(--color-accent-tint-strong); }
.home-hero-actions { margin-top: 28px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-btn {
	display: inline-flex; align-items: center; gap: 8px; padding: 13px 26px; border-radius: 999px;
	font-size: 14.5px; font-weight: 600; transition: all var(--transition);
}
.hero-btn-primary { background: var(--color-ink); color: #fff; box-shadow: 0 8px 20px rgba(22, 24, 29, 0.18); }
.hero-btn-primary:hover { background: var(--color-accent-ink); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(11, 92, 81, 0.24); }
.hero-btn-secondary { border: 1px solid var(--color-border-strong); color: var(--color-ink); background: #fff; }
.hero-btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent-ink); transform: translateY(-2px); }

/* ==========================================================================
   Homepage: sectioned layout (Latest Articles / Guides)
   ========================================================================== */
.home-section { padding: 56px 0; scroll-margin-top: calc(var(--header-h) + 16px); }
@media (max-width: 640px) { .home-section { padding: 36px 0; } }
.home-section.section-alt { background: var(--color-bg-soft); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }

.section-header {
	display: flex; align-items: flex-end; justify-content: space-between;
	gap: 20px; margin-bottom: 36px; flex-wrap: wrap;
}
.section-title { font-size: clamp(24px, 3vw, 32px); margin-top: 6px; }
.view-all-link {
	display: inline-flex; align-items: center; gap: 8px; flex-shrink: 0;
	font-size: 14px; font-weight: 600; color: var(--color-accent-ink);
	padding-bottom: 4px; border-bottom: 1px solid transparent;
	transition: border-color var(--transition);
}
.view-all-link svg { transition: transform var(--transition); }
.view-all-link:hover { border-color: currentColor; }
.view-all-link:hover svg { transform: translateX(3px); }

.home-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 980px) { .home-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .home-grid { grid-template-columns: 1fr; } }

.home-card {
	display: flex; flex-direction: column; background: #fff;
	border: 1px solid var(--color-border); border-radius: var(--radius-lg);
	overflow: hidden; transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.home-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--color-border-strong); }

.home-card-media { position: relative; display: block; aspect-ratio: 16/10; background: var(--color-bg-soft); overflow: hidden; }
.home-card-media img { width: 100%; height: auto; object-fit: cover; transition: transform 450ms ease; }
.home-card:hover .home-card-media img { transform: scale(1.05); }
.home-card-media-fallback {
	display: block; width: 100%; height: 100%;
	background: linear-gradient(135deg, var(--color-accent-tint), var(--color-bg-soft));
}
.home-card-kicker {
	position: absolute; top: 14px; left: 14px; font-size: 11px; font-weight: 700;
	letter-spacing: .05em; text-transform: uppercase; color: #fff;
	background: rgba(17, 18, 22, 0.72); padding: 5px 12px; border-radius: 20px;
	backdrop-filter: blur(4px);
}

.home-card-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.home-card-body .taxonomy-badge { margin-bottom: 10px; }
.home-card-title { font-size: 19px; line-height: 1.35; margin-bottom: 10px; }
.home-card-title a:hover { color: var(--color-accent); }
.home-card-body .entry-meta { margin-bottom: 12px; }
.home-card-excerpt { font-size: 14.5px; color: var(--color-ink-soft); margin-bottom: 16px; flex: 1; }
.home-card-body .read-more { margin-top: auto; }

.home-grid-guides .home-card { background: #fff; }
.home-grid-guides .home-card-media { background: var(--color-accent-tint); }