/* ============================================================================
   SCMEP ONLINE — PREMIUM ARTICLE TEMPLATE
   Scoped under #sc-article-page so nothing here touches the topic pages,
   catalog, or homepage, which keep their own layouts. Reuses the site's
   existing --sc-* tokens and the .sc-article / .sc-table / .sc-faq /
   .sc-breadcrumb component styles already in style.css — this file only
   adds what's new: reading progress, hero, TOC layout, sidebar, content
   component boxes, author card, related grid, CTA banner, comments.
   ============================================================================ */

/* ---------------------------------------------------------------------------
   READING PROGRESS BAR
   --------------------------------------------------------------------------- */
.sc-reading-progress {
	position: fixed;
	top: var(--sc-header-h, 80px);
	left: 0;
	width: 100%;
	height: 3px;
	background: transparent;
	z-index: 60;
}
.sc-reading-progress__bar {
	height: 100%;
	width: 0%;
	background: linear-gradient(90deg, var(--sc-secondary), var(--sc-accent));
	transform-origin: left;
	transition: width 0.1s linear;
}
@media (prefers-reduced-motion: reduce) {
	.sc-reading-progress__bar { transition: none; }
}

/* ---------------------------------------------------------------------------
   PAGE SCAFFOLD
   --------------------------------------------------------------------------- */
#sc-article-page { background: var(--sc-bg); }
#sc-article-page .sc-container--wide { max-width: 1440px; margin-inline: auto; padding-inline: var(--sc-3); }

.sc-article-breadcrumb-bar { padding-block: var(--sc-3); }

/* ---------------------------------------------------------------------------
   HERO
   --------------------------------------------------------------------------- */
.sc-article-hero { padding-block: var(--sc-4) var(--sc-6); }

.sc-article-hero__badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 6px 14px;
	border-radius: var(--sc-radius-pill);
	background: rgb(15 108 189 / 10%);
	color: var(--sc-secondary);
	font-size: var(--sc-fs-xs);
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	margin-bottom: var(--sc-3);
}

.sc-article-hero__title {
	margin: 0 0 var(--sc-2);
	font-family: var(--sc-font);
	font-weight: 800;
	font-size: clamp(2rem, 4.2vw, 3.5rem);
	line-height: 1.12;
	letter-spacing: -0.02em;
	color: var(--sc-primary);
	max-width: 46ch;
}

.sc-article-hero__subtitle {
	margin: 0 0 var(--sc-3);
	font-size: 1.125rem;
	line-height: 1.6;
	color: var(--sc-muted);
	max-width: 62ch;
}

.sc-article-hero__meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--sc-3);
	color: var(--sc-muted);
	font-size: var(--sc-fs-sm);
	margin-bottom: var(--sc-4);
}
.sc-article-hero__meta-item { display: inline-flex; align-items: center; gap: 6px; }
.sc-article-hero__meta-item svg { width: 16px; height: 16px; flex: 0 0 16px; }
.sc-article-hero__meta-sep { opacity: 0.5; }

.sc-article-hero__difficulty {
	display: inline-flex;
	align-items: center;
	padding: 3px 10px;
	border-radius: var(--sc-radius-pill);
	background: var(--sc-bg);
	border: 1px solid var(--sc-border);
	font-weight: 600;
	font-size: var(--sc-fs-xs);
	color: var(--sc-text);
}

.sc-article-hero__share {
	display: flex;
	align-items: center;
	gap: var(--sc-1);
	margin-bottom: var(--sc-5);
}
.sc-article-hero__share-label {
	font-size: var(--sc-fs-xs);
	color: var(--sc-muted);
	font-weight: 600;
	margin-right: 4px;
}
.sc-share-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border-radius: 999px;
	background: var(--sc-surface);
	border: 1px solid var(--sc-border);
	color: var(--sc-text);
	transition: transform var(--sc-dur) var(--sc-ease), color var(--sc-dur) var(--sc-ease), border-color var(--sc-dur) var(--sc-ease);
}
.sc-share-btn svg { width: 18px; height: 18px; }
.sc-share-btn:hover,
.sc-share-btn:focus-visible {
	color: var(--sc-secondary);
	border-color: var(--sc-secondary);
	transform: translateY(-2px);
}

.sc-article-hero__media {
	aspect-ratio: 16 / 6;
	border-radius: var(--sc-radius-sm);
	overflow: hidden;
	box-shadow: var(--sc-shadow-lg);
}
.sc-article-hero__media img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------------------------------------------------------------------------
   QUICK SUMMARY CARD
   --------------------------------------------------------------------------- */
.sc-quick-summary {
	background: var(--sc-surface);
	border: 1px solid var(--sc-border);
	border-left: 4px solid var(--sc-secondary);
	border-radius: var(--sc-radius);
	padding: var(--sc-4);
	margin-top: calc(-1 * var(--sc-6));
	margin-bottom: var(--sc-6);
	box-shadow: var(--sc-shadow);
	position: relative;
	z-index: 2;
}
.sc-quick-summary__title {
	margin: 0 0 var(--sc-3);
	font-size: 1.0625rem;
	font-weight: 800;
	color: var(--sc-primary);
	display: flex;
	align-items: center;
	gap: 8px;
}
.sc-quick-summary__title svg { width: 20px; height: 20px; color: var(--sc-secondary); }
.sc-quick-summary__grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: var(--sc-3);
}
.sc-quick-summary__block h3 {
	margin: 0 0 6px;
	font-size: var(--sc-fs-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--sc-muted);
}
.sc-quick-summary__block p { margin: 0; font-size: var(--sc-fs-sm); color: var(--sc-text); line-height: 1.6; }
.sc-quick-summary__block ul { margin: 0; padding-left: 1.1em; font-size: var(--sc-fs-sm); color: var(--sc-text); }
.sc-quick-summary__block li { margin: 0; padding: 0; }
.sc-quick-summary__block li + li { margin-top: 4px; }
.sc-quick-summary__skills { display: flex; flex-wrap: wrap; gap: 6px; }
.sc-quick-summary__skill {
	font-size: 0.75rem;
	font-weight: 600;
	padding: 3px 10px;
	border-radius: var(--sc-radius-pill);
	background: rgb(24 183 199 / 12%);
	color: var(--sc-accent-700);
}

/* ---------------------------------------------------------------------------
   TWO-COLUMN LAYOUT — content / sidebar. (The sticky "On this page" TOC
   column was removed per feedback; .sc-article-toc rules below are kept,
   unused, in case a TOC is reintroduced later.)
   --------------------------------------------------------------------------- */
.sc-article-layout {
	display: grid;
	grid-template-columns: minmax(0, 780px) 320px;
	gap: var(--sc-6);
	align-items: start;
	justify-content: center;
	padding-bottom: var(--sc-8);
}

/* ---------------------------------------------------------------------------
   TABLE OF CONTENTS
   --------------------------------------------------------------------------- */
.sc-article-toc {
	position: sticky;
	top: calc(var(--sc-header-h, 80px) + var(--sc-3));
	max-height: calc(100vh - var(--sc-header-h, 80px) - var(--sc-4));
	overflow-y: auto;
	padding-right: var(--sc-1);
}
.sc-article-toc__title {
	margin: 0 0 var(--sc-2);
	font-size: var(--sc-fs-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--sc-muted);
}
.sc-article-toc__list { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--sc-border); }
.sc-article-toc__list li { margin: 0; }
.sc-article-toc__list a {
	display: block;
	padding: 6px 0 6px 14px;
	margin-left: -2px;
	border-left: 2px solid transparent;
	font-size: var(--sc-fs-sm);
	color: var(--sc-muted);
	text-decoration: none;
	line-height: 1.4;
	transition: color var(--sc-dur) var(--sc-ease), border-color var(--sc-dur) var(--sc-ease);
}
.sc-article-toc__list li.is-h3 a { padding-left: 26px; font-size: 0.8125rem; }
.sc-article-toc__list a:hover { color: var(--sc-secondary); }
.sc-article-toc__list li.is-active > a {
	color: var(--sc-secondary);
	border-left-color: var(--sc-secondary);
	font-weight: 600;
}

/* ---------------------------------------------------------------------------
   ARTICLE BODY — refines the existing .sc-article typography for the
   750px reading column; tables/FAQ keep their established styling as-is.
   --------------------------------------------------------------------------- */
.sc-article-main .sc-article {
	max-width: 780px;
}
.sc-article-main .sc-article > * + * { margin-top: var(--sc-4); }
.sc-article-main .sc-article p,
.sc-article-main .sc-article li { font-size: 1.125rem; line-height: 1.9; }
.sc-article-main .sc-article h2 { font-size: clamp(1.5rem, 3vw, 2.375rem); scroll-margin-top: calc(var(--sc-header-h, 80px) + 16px); }
.sc-article-main .sc-article h3 { font-size: clamp(1.125rem, 2vw, 1.75rem); scroll-margin-top: calc(var(--sc-header-h, 80px) + 16px); }
.sc-article-main .sc-article figure img { border-radius: 16px; box-shadow: var(--sc-shadow); }

/* ---------------------------------------------------------------------------
   CONTENT COMPONENT BOXES — usable inside post content via a Custom HTML
   block, e.g. <div class="sc-box sc-box--tip">…</div>
   --------------------------------------------------------------------------- */
.sc-box {
	border-radius: var(--sc-radius);
	padding: var(--sc-3);
	border: 1px solid var(--sc-border);
	display: flex;
	gap: var(--sc-2);
}
.sc-box__icon { flex: 0 0 24px; width: 24px; height: 24px; margin-top: 2px; }
.sc-box__body p:first-child { margin-top: 0; }
.sc-box__body p:last-child { margin-bottom: 0; }
.sc-box__title { font-weight: 700; margin: 0 0 4px; }

.sc-box--info    { background: rgb(15 108 189 / 6%);  border-color: rgb(15 108 189 / 25%); }
.sc-box--info    .sc-box__icon, .sc-box--info .sc-box__title    { color: var(--sc-secondary); }

.sc-box--tip     { background: rgb(46 125 50 / 6%);   border-color: rgb(46 125 50 / 25%); }
.sc-box--tip     .sc-box__icon, .sc-box--tip .sc-box__title     { color: var(--sc-success); }

.sc-box--warning { background: rgb(217 119 6 / 8%);   border-color: rgb(217 119 6 / 30%); }
.sc-box--warning .sc-box__icon, .sc-box--warning .sc-box__title { color: #B45309; }

.sc-box--practice{ background: var(--sc-bg);          border-color: var(--sc-border); }
.sc-box--practice .sc-box__icon, .sc-box--practice .sc-box__title { color: var(--sc-text); }

.sc-box--example { background: rgb(24 183 199 / 7%);  border-color: rgb(24 183 199 / 28%); }
.sc-box--example .sc-box__icon, .sc-box--example .sc-box__title { color: var(--sc-accent-700); }

/* Quote block */
.sc-quote {
	position: relative;
	margin: var(--sc-4) 0;
	padding: var(--sc-3) var(--sc-4);
	background: var(--sc-surface);
	border-left: 4px solid var(--sc-accent);
	border-radius: var(--sc-radius-sm);
	box-shadow: var(--sc-shadow-sm);
	font-size: 1.25rem;
	line-height: 1.6;
	color: var(--sc-primary);
	font-weight: 600;
}
.sc-quote cite { display: block; margin-top: var(--sc-2); font-size: var(--sc-fs-sm); font-weight: 500; color: var(--sc-muted); font-style: normal; }

/* Checklist */
.sc-checklist { list-style: none; margin: var(--sc-3) 0; padding: 0; display: grid; gap: var(--sc-1); }
.sc-checklist li {
	display: flex;
	align-items: flex-start;
	gap: var(--sc-2);
	padding: var(--sc-1) var(--sc-2);
	border-radius: var(--sc-radius-sm);
	transition: background var(--sc-dur) var(--sc-ease);
}
.sc-checklist input[type="checkbox"] {
	appearance: none;
	width: 20px;
	height: 20px;
	flex: 0 0 20px;
	margin-top: 2px;
	border: 2px solid var(--sc-border);
	border-radius: 6px;
	cursor: pointer;
	display: grid;
	place-content: center;
	transition: border-color var(--sc-dur) var(--sc-ease), background var(--sc-dur) var(--sc-ease);
}
.sc-checklist input[type="checkbox"]::before {
	content: "";
	width: 10px;
	height: 6px;
	border-left: 2px solid #fff;
	border-bottom: 2px solid #fff;
	transform: rotate(-45deg) scale(0);
	transition: transform 0.15s var(--sc-ease);
}
.sc-checklist input[type="checkbox"]:checked { background: var(--sc-secondary); border-color: var(--sc-secondary); }
.sc-checklist input[type="checkbox"]:checked::before { transform: rotate(-45deg) scale(1); }
.sc-checklist label { font-size: 1.0625rem; cursor: pointer; }
.sc-checklist li:has(input:checked) label { color: var(--sc-muted); text-decoration: line-through; }

/* Download card */
.sc-download-card {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--sc-3);
	flex-wrap: wrap;
	background: linear-gradient(135deg, var(--sc-primary-700), var(--sc-primary));
	color: #fff;
	border-radius: var(--sc-radius);
	padding: var(--sc-3) var(--sc-4);
	margin: var(--sc-4) 0;
}
.sc-download-card__text h3 { margin: 0 0 4px; color: #fff; font-size: 1.125rem; }
.sc-download-card__text p { margin: 0; color: var(--sc-on-dark-muted); font-size: var(--sc-fs-sm); }
.sc-download-card .sc-btn--solid { background: #fff; color: var(--sc-primary); flex: 0 0 auto; }
.sc-download-card .sc-btn--solid:hover { background: var(--sc-bg); }

/* ---------------------------------------------------------------------------
   CALLOUT — "Key takeaway"
   --------------------------------------------------------------------------- */
.sc-callout {
	display: flex;
	gap: var(--sc-3);
	align-items: flex-start;
	background: linear-gradient(135deg, rgb(15 108 189 / 8%), rgb(24 183 199 / 8%));
	border: 1px solid rgb(15 108 189 / 20%);
	border-radius: var(--sc-radius);
	padding: var(--sc-3) var(--sc-4);
	margin: var(--sc-5) 0;
}
.sc-callout__icon {
	flex: 0 0 44px;
	width: 44px;
	height: 44px;
	border-radius: 12px;
	background: linear-gradient(135deg, var(--sc-secondary), var(--sc-accent));
	display: grid;
	place-content: center;
	color: #fff;
}
.sc-callout__icon svg { width: 22px; height: 22px; }
.sc-callout__title { margin: 0 0 4px; font-weight: 800; color: var(--sc-primary); font-size: 1rem; text-transform: uppercase; letter-spacing: 0.04em; }
.sc-callout p { margin: 0; font-size: 1.0625rem; color: var(--sc-text); }

/* ---------------------------------------------------------------------------
   APPLICATION GRID
   --------------------------------------------------------------------------- */
.sc-app-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: var(--sc-2);
	margin: var(--sc-4) 0;
}
.sc-app-card {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--sc-1);
	text-align: center;
	padding: var(--sc-3) var(--sc-2);
	background: var(--sc-surface);
	border: 1px solid var(--sc-border);
	border-radius: var(--sc-radius-sm);
	transition: transform var(--sc-dur) var(--sc-ease), box-shadow var(--sc-dur) var(--sc-ease), border-color var(--sc-dur) var(--sc-ease);
}
.sc-app-card:hover { transform: translateY(-4px); box-shadow: var(--sc-shadow-lg); border-color: var(--sc-secondary); }
.sc-app-card__icon { width: 32px; height: 32px; color: var(--sc-secondary); }
.sc-app-card__title { font-size: var(--sc-fs-sm); font-weight: 600; color: var(--sc-text); }

/* ---------------------------------------------------------------------------
   SIDEBAR
   --------------------------------------------------------------------------- */
.sc-article-sidebar { position: sticky; top: calc(var(--sc-header-h, 80px) + var(--sc-3)); display: grid; gap: var(--sc-3); }

.sc-side-card {
	background: var(--sc-surface);
	border: 1px solid var(--sc-border);
	border-radius: var(--sc-radius);
	padding: var(--sc-3);
	box-shadow: var(--sc-shadow-sm);
}
.sc-side-card__title {
	margin: 0 0 var(--sc-2);
	font-size: var(--sc-fs-xs);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--sc-muted);
}

.sc-side-author { display: flex; gap: var(--sc-2); align-items: center; }
.sc-side-author__avatar {
	width: 52px;
	height: 52px;
	border-radius: 999px;
	flex: 0 0 52px;
	background: var(--sc-bg);
	border: 1px solid var(--sc-border);
	display: grid;
	place-content: center;
	padding: 9px;
}
.sc-side-author__avatar svg { width: 100%; height: 100%; display: block; }
.sc-side-author__name { margin: 0; font-weight: 700; color: var(--sc-primary); font-size: 0.9375rem; }
.sc-side-author__role { margin: 0; font-size: var(--sc-fs-xs); color: var(--sc-muted); }
.sc-side-card p.sc-side-author__bio { margin: var(--sc-2) 0 0; font-size: var(--sc-fs-sm); color: var(--sc-text); line-height: 1.6; }

.sc-side-related { display: grid; gap: var(--sc-2); }
.sc-side-related__item { display: flex; gap: var(--sc-2); text-decoration: none; align-items: flex-start; }
.sc-side-related__thumb {
	width: 64px;
	height: 64px;
	flex: 0 0 64px;
	border-radius: var(--sc-radius-sm);
	overflow: hidden;
	background: var(--sc-bg);
}
.sc-side-related__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sc-side-related__title { margin: 0; font-size: 0.875rem; font-weight: 600; color: var(--sc-text); line-height: 1.4; }
.sc-side-related__item:hover .sc-side-related__title { color: var(--sc-secondary); }
.sc-side-related__meta { margin: 4px 0 0; font-size: 0.75rem; color: var(--sc-muted); }

.sc-side-share { display: flex; gap: var(--sc-1); }

/* Floating mobile share bar */
.sc-mobile-share {
	display: none;
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
	z-index: 55;
	background: var(--sc-surface);
	border-top: 1px solid var(--sc-border);
	box-shadow: 0 -4px 12px rgb(16 42 67 / 8%);
	padding: var(--sc-1) var(--sc-2);
	justify-content: space-around;
	align-items: center;
}

/* ---------------------------------------------------------------------------
   AUTHOR SECTION (full width, below content)
   --------------------------------------------------------------------------- */
.sc-author-block {
	display: flex;
	gap: var(--sc-3);
	align-items: center;
	flex-wrap: wrap;
	background: var(--sc-surface);
	border: 1px solid var(--sc-border);
	border-radius: var(--sc-radius);
	padding: var(--sc-4);
	box-shadow: var(--sc-shadow-sm);
}
.sc-author-block__avatar {
	width: 72px;
	height: 72px;
	border-radius: 999px;
	flex: 0 0 72px;
	background: var(--sc-bg);
	border: 1px solid var(--sc-border);
	display: grid;
	place-content: center;
	padding: 13px;
}
.sc-author-block__avatar svg { width: 100%; height: 100%; display: block; }
.sc-author-block__info { flex: 1 1 320px; }
.sc-author-block__name { margin: 0; font-size: 1.125rem; font-weight: 800; color: var(--sc-primary); }
.sc-author-block__role { margin: 2px 0 var(--sc-1); font-size: var(--sc-fs-sm); color: var(--sc-secondary); font-weight: 600; }
.sc-author-block__desc { margin: 0; font-size: var(--sc-fs-sm); color: var(--sc-text); line-height: 1.6; max-width: 60ch; }
.sc-author-block__social { display: flex; gap: var(--sc-1); margin-top: var(--sc-2); }

/* ---------------------------------------------------------------------------
   RELATED ARTICLES GRID
   --------------------------------------------------------------------------- */
.sc-related-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: var(--sc-3);
}
.sc-related-card {
	display: flex;
	flex-direction: column;
	background: var(--sc-surface);
	border: 1px solid var(--sc-border);
	border-radius: var(--sc-radius);
	overflow: hidden;
	text-decoration: none;
	box-shadow: var(--sc-shadow-sm);
	transition: transform var(--sc-dur) var(--sc-ease), box-shadow var(--sc-dur) var(--sc-ease);
}
.sc-related-card:hover { transform: translateY(-5px); box-shadow: var(--sc-shadow-lg); }
.sc-related-card__media { aspect-ratio: 16 / 9; overflow: hidden; background: var(--sc-bg); }
.sc-related-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform var(--sc-dur) var(--sc-ease); }
.sc-related-card:hover .sc-related-card__media img { transform: scale(1.05); }
.sc-related-card__body { padding: var(--sc-2); display: flex; flex-direction: column; gap: 6px; flex: 1; }
.sc-related-card__cat { font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--sc-secondary); }
.sc-related-card__title { margin: 0; font-size: 1rem; font-weight: 700; color: var(--sc-text); line-height: 1.4; }
.sc-related-card__meta { margin-top: auto; font-size: 0.75rem; color: var(--sc-muted); }

/* ---------------------------------------------------------------------------
   COURSE CTA BANNER
   --------------------------------------------------------------------------- */
.sc-cta-banner {
	background: linear-gradient(135deg, var(--sc-primary-700) 0%, var(--sc-secondary) 100%);
	border-radius: 20px;
	padding: var(--sc-6) var(--sc-5);
	text-align: center;
	color: #fff;
}
.sc-cta-banner__title { margin: 0 0 var(--sc-1); font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; }
.sc-cta-banner__desc { margin: 0 auto var(--sc-3); max-width: 52ch; color: var(--sc-on-dark-muted); font-size: 1.0625rem; }
.sc-cta-banner__actions { display: flex; justify-content: center; gap: var(--sc-2); flex-wrap: wrap; }
.sc-cta-banner .sc-btn--solid { background: #fff; color: var(--sc-primary); }
.sc-cta-banner .sc-btn--solid:hover { background: var(--sc-bg); }
.sc-cta-banner .sc-btn--secondary { border-color: rgb(255 255 255 / 40%); color: #fff; }
.sc-cta-banner .sc-btn--secondary:hover { border-color: #fff; background: rgb(255 255 255 / 10%); }

/* ---------------------------------------------------------------------------
   COMMENTS
   --------------------------------------------------------------------------- */
.sc-comments-section { margin-top: var(--sc-6); }
#sc-article-page .comment-respond,
#sc-article-page .comment-list { max-width: 780px; }
#sc-article-page .comment-form input[type="text"],
#sc-article-page .comment-form input[type="email"],
#sc-article-page .comment-form input[type="url"],
#sc-article-page .comment-form textarea {
	width: 100%;
	border: 1px solid var(--sc-border);
	border-radius: var(--sc-radius-sm);
	padding: var(--sc-1) var(--sc-2);
	font: inherit;
	font-size: 1rem;
	background: var(--sc-surface);
	color: var(--sc-text);
	transition: border-color var(--sc-dur) var(--sc-ease);
}
#sc-article-page .comment-form input:focus,
#sc-article-page .comment-form textarea:focus {
	outline: none;
	border-color: var(--sc-secondary);
	box-shadow: 0 0 0 3px rgb(15 108 189 / 15%);
}
#sc-article-page .comment-form textarea { min-height: 140px; resize: vertical; }
#sc-article-page .comment-form p { margin: 0 0 var(--sc-2); }
#sc-article-page .comment-list { list-style: none; padding: 0; margin: var(--sc-4) 0; display: grid; gap: var(--sc-3); }
#sc-article-page .comment-body {
	display: flex;
	gap: var(--sc-2);
	background: var(--sc-surface);
	border: 1px solid var(--sc-border);
	border-radius: var(--sc-radius);
	padding: var(--sc-3);
}
#sc-article-page .comment-author .avatar { width: 44px; height: 44px; border-radius: 999px; flex: 0 0 44px; }
#sc-article-page .comment-metadata { font-size: var(--sc-fs-xs); color: var(--sc-muted); }
#sc-article-page .comment-content p { margin: 6px 0 0; font-size: 0.9375rem; line-height: 1.7; }
#sc-article-page .comment-reply-link {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	margin-top: 6px;
	font-size: var(--sc-fs-xs);
	font-weight: 600;
	color: var(--sc-secondary);
	text-decoration: none;
}
#sc-article-page .comment-reply-link:hover { text-decoration: underline; }
#sc-article-page .children { list-style: none; margin: var(--sc-2) 0 0; padding-left: var(--sc-4); border-left: 2px solid var(--sc-border); }

/* ---------------------------------------------------------------------------
   SCROLL REVEAL
   --------------------------------------------------------------------------- */
.sc-reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s var(--sc-ease), transform 0.5s var(--sc-ease); }
.sc-reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
	.sc-reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------------------------------------------------------------------------
   RESPONSIVE
   --------------------------------------------------------------------------- */
/* Below 1280px: drop the TOC column, keep content + sidebar */
@media (max-width: 1280px) {
	.sc-article-layout { grid-template-columns: minmax(0, 1fr) 320px; }
	.sc-article-toc { display: none; }
}

/* Below 960px: single column, sidebar moves below content, mobile share bar appears */
@media (max-width: 960px) {
	.sc-article-layout { grid-template-columns: 1fr; gap: var(--sc-4); }
	.sc-article-sidebar { position: static; }
	.sc-article-hero__share { display: none; }
	.sc-mobile-share { display: flex; }
	#sc-article-page { padding-bottom: 64px; } /* clear the fixed mobile share bar */
	.sc-quick-summary { margin-top: var(--sc-3); }
	.sc-app-grid { grid-template-columns: repeat(2, 1fr); }
	.sc-related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
	.sc-article-hero__title { font-size: clamp(1.75rem, 8vw, 2.25rem); }
	.sc-quick-summary__grid { grid-template-columns: 1fr; }
	.sc-app-grid { grid-template-columns: 1fr 1fr; gap: var(--sc-1); }
	.sc-related-grid { grid-template-columns: 1fr; }
	.sc-author-block { flex-direction: column; text-align: center; }
	.sc-author-block__desc { max-width: none; }
	.sc-cta-banner { padding: var(--sc-4) var(--sc-3); }
	.sc-download-card { flex-direction: column; align-items: stretch; text-align: center; }
}

@media (prefers-reduced-motion: no-preference) {
	html { scroll-behavior: smooth; }
}