/* Blogg — blog-specific additions to gs-* design system.
 * Assumes tokens.css + styles-ds.css loaded before.
 * No duplication of button/card/topbar/typography — only what's unique to blog.
 */

/* Legacy token aliases for inline-HTML content migrated from the pre-design-system blog.
 * Keeps existing `style="color: var(--success)"` / `var(--error)` / `var(--accent)` / `var(--muted)`
 * renderable in the new palette without rewriting every post body. */
:root {
  --success: var(--gs-navy-800);
  --error: var(--gs-coral-800);
  --muted: var(--gs-text-muted);
  --ink: var(--gs-primary);
  --line: var(--gs-border);
  --card-bg: var(--gs-bg-raised);
}

/* ══════════ SKIP LINK (mirrors index) ══════════ */
.gs-skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 1000;
  padding: 10px 18px;
  background: var(--gs-primary);
  color: var(--gs-text-invert);
  border-radius: var(--gs-radius-md);
  font-family: var(--gs-font-sans);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}
.gs-skip-link:focus {
  top: 12px;
}

/* ══════════ HERO ══════════ */
.gs-blog-hero {
  max-width: 760px;
  padding-top: 56px;
  padding-bottom: 72px;
}
.gs-blog-hero h1 {
  margin-bottom: var(--gs-space-5);
}
.gs-blog-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--gs-space-5);
}

/* ══════════ FEATURED GRID ══════════ */
.gs-blog-featured__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 720px) {
  .gs-blog-featured__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ══════════ POSTS GRID ══════════ */
.gs-blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 720px) {
  .gs-blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1080px) {
  .gs-blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ══════════ BLOG CARD ══════════
 * Extends .gs-card as a clickable article link.
 * Uses flex-column so meta sits at the bottom regardless of card height. */
.gs-blog-card {
  display: flex;
  flex-direction: column;
  gap: var(--gs-space-3);
  text-decoration: none;
  color: inherit;
  transition:
    transform var(--gs-duration-base) var(--gs-ease),
    box-shadow var(--gs-duration-base) var(--gs-ease),
    border-color var(--gs-duration-base) var(--gs-ease);
}
.gs-blog-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--gs-shadow-md);
  border-color: var(--gs-border-strong);
  color: inherit;
}
.gs-blog-card:focus-visible {
  outline: 2px solid var(--gs-accent);
  outline-offset: 3px;
}

.gs-blog-card__category {
  align-self: flex-start;
}

.gs-blog-card__title {
  font-family: var(--gs-font-serif);
  font-variation-settings:
    "SOFT" 0,
    "opsz" 36;
  font-weight: 500;
  font-size: var(--gs-text-xl);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--gs-primary);
  margin: 0;
  text-wrap: balance;
}

.gs-blog-card--lg .gs-blog-card__title {
  font-size: var(--gs-text-2xl);
  line-height: 1.15;
}

.gs-blog-card__excerpt {
  color: var(--gs-text-muted);
  font-size: var(--gs-text-base);
  line-height: 1.55;
  margin: 0;
  flex: 1;
}

.gs-blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--gs-font-mono);
  font-size: 12px;
  color: var(--gs-text-faint);
  margin: 0;
  padding-top: var(--gs-space-3);
  border-top: 1px solid var(--gs-border);
}

/* ══════════ CTA SECTION (index) ══════════ */
.gs-blog-cta__card {
  padding: 56px 48px;
  text-align: left;
  max-width: 820px;
}
@media (max-width: 640px) {
  .gs-blog-cta__card {
    padding: 40px 28px;
  }
}

/* ══════════ ARTICLE PAGE ══════════ */
.gs-blog-article-wrap {
  max-width: 780px;
  padding-top: 40px;
  padding-bottom: 120px;
}

.gs-blog-article__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--gs-font-sans);
  font-size: 14px;
  color: var(--gs-text-muted);
  text-decoration: none;
  margin-bottom: var(--gs-space-6);
}
.gs-blog-article__back:hover {
  color: var(--gs-primary);
}

.gs-blog-article__header {
  margin-bottom: var(--gs-space-8);
}

.gs-blog-article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-family: var(--gs-font-mono);
  font-size: 12px;
  color: var(--gs-text-muted);
  margin-bottom: var(--gs-space-5);
}

.gs-blog-article__lead {
  font-family: var(--gs-font-sans);
  font-size: var(--gs-text-xl);
  line-height: 1.5;
  color: var(--gs-text-muted);
  max-width: 60ch;
  margin: var(--gs-space-5) 0 0;
}

/* ══════════ ARTICLE BODY — long-form reading ══════════ */
.gs-blog-article__body {
  font-family: var(--gs-font-sans);
  font-size: var(--gs-text-lg);
  line-height: 1.7;
  color: var(--gs-text);
}

.gs-blog-article__body > * + * {
  margin-top: var(--gs-space-4);
}

.gs-blog-article__body h2 {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  margin-top: var(--gs-space-8);
  margin-bottom: var(--gs-space-3);
}

.gs-blog-article__body h3 {
  font-size: var(--gs-text-xl);
  margin-top: var(--gs-space-6);
  margin-bottom: var(--gs-space-2);
}

.gs-blog-article__body h4 {
  font-family: var(--gs-font-serif);
  font-variation-settings:
    "SOFT" 0,
    "opsz" 24;
  font-weight: 600;
  font-size: var(--gs-text-lg);
  color: var(--gs-primary);
  margin-top: var(--gs-space-5);
  margin-bottom: var(--gs-space-2);
}

.gs-blog-article__body p {
  margin: 0 0 var(--gs-space-4);
}

.gs-blog-article__body ul,
.gs-blog-article__body ol {
  padding-left: 1.25em;
  margin: 0 0 var(--gs-space-4);
}
.gs-blog-article__body li {
  margin-bottom: 8px;
  line-height: 1.6;
}
.gs-blog-article__body li::marker {
  color: var(--gs-accent);
}

.gs-blog-article__body a {
  color: var(--gs-primary);
  text-decoration: underline;
  text-decoration-color: var(--gs-accent);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}
.gs-blog-article__body a:hover {
  color: var(--gs-accent);
}

.gs-blog-article__body strong {
  font-weight: 600;
  color: var(--gs-primary);
}

.gs-blog-article__body hr {
  border: 0;
  border-top: 1px solid var(--gs-border);
  margin: var(--gs-space-7) 0;
}

.gs-blog-article__body blockquote {
  font-family: var(--gs-font-serif);
  font-variation-settings:
    "SOFT" 0,
    "opsz" 36;
  font-size: var(--gs-text-xl);
  line-height: 1.4;
  color: var(--gs-primary);
  border-left: 2px solid var(--gs-accent);
  padding: 4px 0 4px var(--gs-space-5);
  margin: var(--gs-space-6) 0;
}

.gs-blog-article__body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--gs-space-5) 0;
  font-size: var(--gs-text-base);
}
.gs-blog-article__body th,
.gs-blog-article__body td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gs-border);
}
.gs-blog-article__body th {
  font-family: var(--gs-font-sans);
  font-weight: 600;
  color: var(--gs-primary);
  background: var(--gs-bg-raised);
}

.gs-blog-article__body code {
  font-family: var(--gs-font-mono);
  font-size: 0.9em;
  padding: 2px 6px;
  background: var(--gs-bg-raised);
  border-radius: var(--gs-radius-sm);
  border: 1px solid var(--gs-border);
}

/* ══════════ LEGACY INLINE HTML BLOCKS ══════════
 * The migrated markdown files embed a few inline-HTML patterns
 * (grid-2, card, structure-box, example-box, article-cta) that survive
 * inside .gs-blog-article__body. Style them to match the design system.
 */

.gs-blog-article__body .grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: var(--gs-space-5) 0;
}
@media (min-width: 600px) {
  .gs-blog-article__body .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gs-blog-article__body .card,
.gs-blog-article__body .structure-box,
.gs-blog-article__body .example-box {
  background: var(--gs-bg-raised);
  border: 1px solid var(--gs-border);
  border-radius: var(--gs-radius-lg);
  padding: 20px 24px;
  margin: var(--gs-space-4) 0;
}

.gs-blog-article__body .structure-box h4 {
  margin-top: var(--gs-space-4);
  margin-bottom: var(--gs-space-2);
}
.gs-blog-article__body .structure-box > h4:first-child {
  margin-top: 0;
}

.gs-blog-article__body .example-box.bad {
  border-left: 3px solid var(--gs-coral-800);
}
.gs-blog-article__body .example-box.good {
  border-left: 3px solid var(--gs-navy-800);
}

.gs-blog-article__body .article-cta {
  background: var(--gs-navy-50);
  border: 1px solid var(--gs-navy-100);
  border-radius: var(--gs-radius-lg);
  padding: 24px 28px;
  margin: var(--gs-space-6) 0;
}
.gs-blog-article__body .article-cta h3,
.gs-blog-article__body .article-cta h4 {
  margin-top: 0;
}
.gs-blog-article__body .article-cta .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--gs-accent);
  color: var(--gs-navy-900);
  font-family: var(--gs-font-sans);
  font-weight: 500;
  font-size: var(--gs-text-base);
  border-radius: var(--gs-radius-md);
  text-decoration: none;
  border: 1.5px solid var(--gs-accent);
}
.gs-blog-article__body .article-cta .btn:hover {
  background: var(--gs-accent-hover);
  border-color: var(--gs-accent-hover);
  color: #fff;
}

/* ══════════ ARTICLE-END CTA (dark card) ══════════ */
.gs-blog-article__cta {
  margin-top: var(--gs-space-9);
}
.gs-blog-article__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--gs-space-4);
}

/* ══════════ RELATED POSTS ══════════ */
.gs-blog-related {
  margin-top: var(--gs-space-9);
  padding-top: var(--gs-space-7);
  border-top: 1px solid var(--gs-border);
}
.gs-blog-related__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: var(--gs-space-4);
}
@media (min-width: 640px) {
  .gs-blog-related__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ══════════ READING PROGRESS BAR ══════════ */
.gs-reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gs-accent);
  transform: scaleX(0);
  transform-origin: left;
  z-index: 100;
  pointer-events: none;
  transition: transform 50ms linear;
}