/* =============================================================
   PolkuAI · Article / Blog post styles
   Jaettu tyylitiedosto kaikille blogi-*.html artikkelisivuille.
   Lataa colors_and_type.css ja site.css ENNEN tätä.
   ============================================================= */

/* -------------------------------------------------------------
   SCROLL PROGRESS LINE (lukupalkki)
   ------------------------------------------------------------- */
.scroll-line {
  position: fixed;
  left: 0; top: 0;
  width: 3px;
  height: 100vh;
  z-index: 200;
  background: rgba(96,148,128,0.12);
  pointer-events: none;
  --pct: 0%;
}
.scroll-line::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: var(--pct);
  background: linear-gradient(to bottom, var(--polku-sage), var(--polku-sage-dark));
  transition: height 0.06s linear;
}
@media (max-width: 768px) { .scroll-line { display: none; } }

/* -------------------------------------------------------------
   ARTICLE HERO — vaalea, ilmava
   ------------------------------------------------------------- */
.article-hero {
  background: var(--polku-page);
  padding: 140px 0 var(--space-7);
  border-bottom: 1px solid var(--polku-line);
}
.article-hero .container { max-width: 820px; }
.article-hero .breadcrumb { margin-bottom: var(--space-5); }
.article-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.article-hero .eyebrow svg { width: 15px; height: 15px; }
.article-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 4.4vw, 52px);
  line-height: 1.1;
  letter-spacing: var(--tracking-tight);
  color: var(--polku-ink);
  margin: 0 0 var(--space-5);
}

/* Meta row: author · date · reading time */
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-family: var(--font-ui);
  font-size: 14px;
  color: var(--fg-mute);
}
.article-meta .am-author {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  color: var(--polku-graphite);
}
.article-meta .am-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.article-meta .am-sep {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--polku-line);
  display: inline-block;
}
.article-meta .am-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta .am-item svg { width: 14px; height: 14px; color: var(--polku-sage); }

/* Large hero image under the title */
.article-hero-img {
  margin-top: var(--space-7);
  width: 100%;
  aspect-ratio: 16 / 8;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--polku-mint-soft);
}
.article-hero-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* -------------------------------------------------------------
   POST BODY — lukukolumni
   ------------------------------------------------------------- */
.post-wrap { padding: var(--space-8) 0 var(--space-9); }
.post {
  max-width: 720px;
  margin: 0 auto;
  font-family: var(--font-body);
  font-size: var(--fs-body-lg);
  line-height: 1.78;
  color: var(--polku-graphite);
}
.post > p:first-of-type {
  font-size: clamp(19px, 1.2vw + 0.8rem, 23px);
  line-height: 1.65;
  color: var(--polku-ink);
}
.post p { margin: 0 0 var(--space-5); }
.post h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 2.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--polku-ink);
  margin: var(--space-8) 0 var(--space-4);
}
.post h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(20px, 1.8vw, 24px);
  line-height: 1.3;
  color: var(--polku-ink);
  margin: var(--space-6) 0 var(--space-3);
}
.post ul, .post ol {
  margin: 0 0 var(--space-5);
  padding-left: var(--space-6);
}
.post li { margin: 0 0 var(--space-3); padding-left: var(--space-2); }
.post li::marker { color: var(--polku-sage); }
.post a {
  color: var(--polku-sage-dark);
  border-bottom: 1px solid rgba(96,148,128,0.4);
}
.post a:hover { color: var(--polku-sage); border-bottom-color: currentColor; }
.post strong { color: var(--polku-ink); font-weight: 700; }

/* Blockquote */
.post blockquote {
  margin: var(--space-7) 0;
  padding: var(--space-2) 0 var(--space-2) var(--space-6);
  border-left: 3px solid var(--polku-sage);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.4;
  color: var(--polku-ink);
}
.post blockquote p { margin: 0; }

/* Inline figure with caption */
.post figure {
  margin: var(--space-7) 0;
}
.post figure img {
  width: 100%;
  border-radius: var(--radius-lg);
  display: block;
  box-shadow: var(--shadow-sm);
}
.post figure figcaption {
  margin-top: var(--space-3);
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--fg-mute);
  text-align: center;
}

/* Callout box */
.callout {
  margin: var(--space-7) 0;
  padding: var(--space-5) var(--space-6);
  background: var(--polku-mint-soft);
  border: 1px solid rgba(96,148,128,0.25);
  border-radius: var(--radius-lg);
  display: flex;
  gap: var(--space-4);
}
.callout-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--polku-sage);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.callout-icon svg { width: 20px; height: 20px; }
.callout-body { font-size: var(--fs-body); line-height: 1.65; }
.callout-body p { margin: 0; }
.callout-body strong { color: var(--polku-sage-dark); }

/* Section divider between body and footer blocks */
.post-divider {
  max-width: 720px;
  margin: var(--space-8) auto 0;
  height: 1px;
  background: var(--polku-line);
}

/* -------------------------------------------------------------
   AUTHOR BOX
   ------------------------------------------------------------- */
.author-box {
  max-width: 720px;
  margin: var(--space-8) auto 0;
  padding: var(--space-6);
  background: var(--polku-surface);
  border: 1px solid var(--polku-line);
  border-radius: var(--radius-xl);
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
}
.author-box img {
  width: 72px; height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.author-box-text h4 {
  font-family: var(--font-heading);
  font-size: var(--fs-h4);
  color: var(--polku-ink);
  margin: 0 0 4px;
}
.author-box-role {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  color: var(--polku-sage-dark);
  margin: 0 0 var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.author-box-text p { font-size: var(--fs-body); color: var(--fg-mute); line-height: 1.6; margin: 0 0 var(--space-3); }
.author-box-links { display: flex; gap: var(--space-4); }
.author-box-links a {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-bottom: none;
}
.author-box-links a svg { width: 15px; height: 15px; }

/* -------------------------------------------------------------
   "LUE MYÖS" — related articles
   ------------------------------------------------------------- */
.related-section { padding: var(--space-8) 0 var(--space-9); background: var(--polku-page); }
.related-section .section-label { margin-bottom: var(--space-6); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.related-card {
  background: var(--polku-surface);
  border: 1px solid var(--polku-line);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-decoration: none;
  border-bottom: 1px solid var(--polku-line);
  color: inherit;
  transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
  display: block;
}
.related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: rgba(96,148,128,0.4); }
.related-card .article-tag { margin-bottom: var(--space-3); }
.related-card h4 { font-size: var(--fs-body-lg); color: var(--polku-ink); margin: 0 0 var(--space-2); line-height: 1.35; }
.related-card p { font-size: var(--fs-body-sm); color: var(--fg-mute); margin: 0; line-height: 1.55; }

/* -------------------------------------------------------------
   RESPONSIVE
   ------------------------------------------------------------- */
@media (max-width: 768px) {
  .article-hero { padding: 120px 0 var(--space-6); }
  .article-hero-img { aspect-ratio: 16 / 10; }
  .post { font-size: var(--fs-body); }
  .related-grid { grid-template-columns: 1fr; }
  .author-box { flex-direction: column; gap: var(--space-4); }
}