/* ══════════════════════════════════════════════════════════════
   The Zone File — Article & Hub Styles
   ══════════════════════════════════════════════════════════════ */

/* ── Article Header ── */
.article-header {
  padding: 160px 0 60px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.article-category {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue);
  background: rgba(37, 99, 235, 0.08);
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.article-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}

.article-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 620px;
  margin: 0 auto 16px;
}

.article-meta {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 12px;
}

/* ── Article Body ── */
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.article-body h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--text);
}

.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--text);
}

.article-body p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-2);
  margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
  padding-left: 24px;
  margin-bottom: 24px;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  padding: 8px 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-2);
}

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

.article-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(37, 99, 235, 0.06);
  color: var(--blue);
  padding: 2px 7px;
  border-radius: 4px;
}

.article-body blockquote {
  border-left: 3px solid var(--blue);
  padding: 16px 20px;
  margin: 24px 0;
  background: var(--bg-alt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body blockquote p {
  margin-bottom: 0;
  font-style: italic;
}

/* ── Article CTA ── */
.article-cta {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 80px;
  text-align: center;
}

.article-cta-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 32px;
}

.article-cta-box h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.article-cta-box p {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 24px;
  line-height: 1.6;
}

.article-cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Zone File Hub Grid ── */
.zone-file-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.zone-file-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  text-decoration: none;
}

.zone-file-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--blue);
}

.zone-file-card-category {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 14px;
  width: fit-content;
}

.zone-file-card-category--integration {
  color: var(--purple);
  background: rgba(124, 58, 237, 0.08);
}

.zone-file-card-category--concepts {
  color: var(--teal);
  background: rgba(8, 145, 178, 0.08);
}

.zone-file-card-category--guide {
  color: var(--green);
  background: rgba(5, 150, 105, 0.08);
}

.zone-file-card-category--migration {
  color: var(--orange);
  background: rgba(234, 88, 12, 0.08);
}

.zone-file-card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 10px;
  color: var(--text);
}

.zone-file-card-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-2);
  flex: 1;
  margin-bottom: 16px;
}

.zone-file-card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  margin-top: auto;
}

/* Coming soon cards */
.zone-file-card--soon {
  opacity: 0.6;
  pointer-events: none;
}

.zone-file-card--soon:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border);
}

.coming-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-3);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 100px;
  margin-top: auto;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .zone-file-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .article-header {
    padding: 120px 0 40px;
  }

  .article-title {
    font-size: 1.8rem;
  }

  .article-subtitle {
    font-size: 16px;
  }

  .article-body {
    padding: 0 20px 60px;
  }

  .article-body h2 {
    font-size: 19px;
    margin-top: 36px;
  }

  .article-cta {
    padding: 0 20px 60px;
  }

  .article-cta-box {
    padding: 32px 20px;
  }

  .zone-file-grid {
    grid-template-columns: 1fr;
  }
}