/* ─── Vitanzo Blog Stylesheet ─────────────────────────────────────────────────
   Extends /styles.css (shared design tokens and base styles).
   Load styles.css first, then this file.
   Built by: Jenny (Website) — April 2026
   ─────────────────────────────────────────────────────────────────────────── */


/* ─── Blog Index ──────────────────────────────────────────────────────────── */

.blog-hero {
  padding: 80px 0 64px;
  background: var(--color-background);
}

@media (max-width: 767px) {
  .blog-hero { padding: 48px 0 40px; }
}

.blog-hero__inner {
  max-width: 720px;
}

.blog-hero__eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 16px;
}

.blog-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 20px;
}

.blog-hero__lead {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  max-width: 600px;
}

/* ─── Article List ────────────────────────────────────────────────────────── */

.blog-index {
  padding: 0 0 96px;
  background: var(--color-background);
}

@media (max-width: 767px) {
  .blog-index { padding: 0 0 64px; }
}

@media (max-width: 639px) {
  .blog-card {
    padding: 22px 20px 20px;
  }

  .blog-card__title {
    font-size: 1.15rem;
  }

  /* Tighten the outer gutter on mobile so cards feel present in the viewport.
     Scoped to blog index + hero so we don't affect the rest of the site. */
  .blog-hero .container,
  .blog-index .container {
    padding: 0 12px;
  }
}

.blog-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 720px;
}

@media (min-width: 640px) {
  .blog-index__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .blog-index__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 960px;
  }
}

.blog-card {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 28px 24px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-base) var(--ease-default),
              transform var(--duration-base) var(--ease-default);
}

.blog-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

.blog-card:focus-visible {
  border-color: var(--color-border-strong);
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ─── Blog Card Thumbnail ─────────────────────────────────────────────────── */

/*
  Per-article OG image (1200×630) rendered by scripts/render-og-images.mjs,
  used as the card thumbnail. Breaks out of the card padding with negative
  margins so it sits flush to the card's top-left/top-right rounded corners.
*/

.blog-card__thumb {
  display: block;
  width: calc(100% + 56px);
  max-width: none;
  margin: -28px -28px 28px;
  aspect-ratio: 1200 / 630;
  object-fit: cover;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  flex-shrink: 0;
}

@media (max-width: 639px) {
  .blog-card__thumb {
    width: calc(100% + 40px);
    margin: -22px -20px 22px;
  }
}

/* ─────────────────────────────────────────────────────────────────────────── */

.blog-card__topic {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.blog-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--color-text-primary);
  margin-bottom: 12px;
}

.blog-card__excerpt {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__read-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: 16px;
}

/* ─── Article Page Layout ─────────────────────────────────────────────────── */

.article-header {
  padding: 64px 0 48px;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
}

@media (max-width: 767px) {
  .article-header { padding: 40px 0 36px; }
}

.article-header__inner {
  max-width: 720px;
}

.article-header__topic {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 20px;
}

.article-header h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 20px;
}

.article-header__deck {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  max-width: 620px;
}

/* Published / updated dates below the deck */
.article-meta {
  margin-top: 18px;
  font-size: 13px;
  color: var(--color-text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.article-meta time {
  color: inherit;
}

.article-meta__sep {
  color: var(--color-border-strong);
  user-select: none;
}

/* Key-takeaways / TL;DR block near the top of long articles */
.article-tldr {
  max-width: 720px;
  margin: 40px 0 0;
  background: var(--color-surface-secondary);
  border-left: 3px solid var(--color-accent);
  border-radius: 12px;
  padding: 20px 24px 22px;
}

.article-tldr__label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.article-tldr ul {
  list-style: disc;
  padding-left: 20px;
  margin: 0;
}

.article-tldr li {
  color: var(--color-text-primary);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 8px;
}

.article-tldr li:last-child {
  margin-bottom: 0;
}

/* ─── Article Body ────────────────────────────────────────────────────────── */

.article-body {
  padding: 64px 0 0;
  background: var(--color-background);
}

@media (max-width: 767px) {
  .article-body { padding: 40px 0 0; }
}

.article-prose {
  max-width: 720px;
}

.article-prose p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 28px;
}

.article-prose h2 {
  font-size: clamp(1.3rem, 3vw, 1.65rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--color-text-primary);
  margin-top: 56px;
  margin-bottom: 20px;
  line-height: 1.25;
}

.article-prose h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-top: 36px;
  margin-bottom: 14px;
  line-height: 1.3;
}

.article-prose ul,
.article-prose ol {
  color: var(--color-text-secondary);
  line-height: 1.75;
  padding-left: 24px;
  margin-bottom: 28px;
}

.article-prose li {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.article-prose strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.article-prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-prose a:hover {
  opacity: 0.85;
}

/* Pull quote */
.article-prose blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 4px 0 4px 24px;
  margin: 40px 0;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1.55;
  font-style: normal;
}

/* Callout / highlight box */
.article-callout {
  background: var(--color-surface-secondary);
  border-left: 3px solid var(--color-accent);
  border-radius: 12px;
  padding: 24px 28px;
  margin: 36px 0;
}

.article-callout p {
  margin-bottom: 0;
}

/* Divider */
.article-prose hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 56px 0;
}

/* ─── Tables ──────────────────────────────────────────────────────────────── */
/* Spec: vitanzo-business/design/components/table.md (Max, April 2026) */

.article-prose table {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-faq);
  border-collapse: separate;
  border-spacing: 0;
  margin: 32px 0;
  font-size: 0.9rem;
  line-height: 1.55;
  table-layout: fixed;
}

.article-prose table caption {
  display: block;
  caption-side: top;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 14px 16px 0;
}

.article-prose thead tr {
  background: var(--color-surface-secondary);
}

.article-prose th,
.article-prose td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.article-prose th {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-strong);
}

.article-prose td {
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.article-prose tbody tr:last-child td {
  border-bottom: none;
}

/* Row label — first column reads as primary text */
.article-prose tbody td:first-child {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* Desktop: more breathing room, larger type, prose container is wide enough
   to let columns size naturally rather than share the width equally. */
@media (min-width: 640px) {
  .article-prose table {
    font-size: 0.95rem;
    table-layout: auto;
  }
  .article-prose th,
  .article-prose td {
    padding: 14px 24px;
  }
  .article-prose th {
    font-size: 0.875rem;
    white-space: nowrap;
  }
  .article-prose tbody td:first-child {
    min-width: 7.5rem;
  }
  .article-prose table caption {
    padding: 16px 24px 0;
  }
}

/* ─── Article Footer (back links) ─────────────────────────────────────────── */

.article-footer-nav {
  padding: 32px 0;
  background: var(--color-background);
  border-top: 1px solid var(--color-border);
}

.article-footer-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.article-footer-nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--duration-base) var(--ease-default);
}

.article-footer-nav__link:hover {
  color: var(--color-text-primary);
}

/* ─── Site footer (blog pages) ───────────────────────────────────────────── */

.blog-footer {
  background: var(--color-surface-secondary);
  border-top: 1px solid var(--color-border);
  padding: 32px 0 28px;
}

.blog-footer__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px 28px;
}

.blog-footer__logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.blog-footer__logo img {
  display: none;
  height: 26px;
  width: auto;
  max-width: none;
}

.blog-footer__logo-light { display: block; }

.blog-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: center;
}

.blog-footer__link {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--duration-base) var(--ease-default);
}

.blog-footer__link:hover {
  color: var(--color-text-primary);
}

.blog-footer__copy {
  font-size: 12px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  text-align: right;
}

@media (prefers-color-scheme: dark) {
  .blog-footer__logo-light { display: none; }
  .blog-footer__logo-dark  { display: block; }
}

@media (max-width: 767px) {
  .blog-footer { padding: 28px 0 24px; }
  .blog-footer__inner {
    grid-template-columns: 1fr;
    align-items: flex-start;
    gap: 14px;
  }
  .blog-footer__inner nav { width: 100%; }
  .blog-footer__links { justify-content: flex-start; }
  .blog-footer__copy { white-space: normal; text-align: left; }
}

/* ─── Reading progress indicator ─────────────────────────────────────────── */

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--color-accent);
  z-index: 200;
  transition: width 0.1s linear;
}