/* Article pages (generated by build-article-pages.mjs) — platform-themed. */

body.blog-page {
  background:
    radial-gradient(circle at 12% 0%, rgba(30, 79, 145, 0.06), transparent 42%),
    radial-gradient(circle at 95% 18%, rgba(42, 125, 107, 0.05), transparent 40%),
    #f3f6fb;
}

.article-container { max-width: 880px; }

.article-doc {
  padding: 44px 48px 38px;
  border-radius: 18px;
  border: 1px solid #dfe6f0;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.07);
  font-family: "IBM Plex Sans", -apple-system, "Segoe UI", Arial, sans-serif;
  color: #1f2c40;
}
@media (max-width: 640px) { .article-doc { padding: 26px 20px; } }

.article-eyebrow {
  margin: 0 0 14px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #1e4f91;
}

.article-doc h1 {
  margin: 0 0 16px;
  font-size: clamp(1.7rem, 3.8vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: #0f172a;
  font-weight: 700;
}

.article-standfirst {
  font-size: 1.12rem;
  line-height: 1.6;
  color: #52627a;
  margin: 0 0 10px;
}

.article-dateline {
  font-size: 0.84rem;
  color: #7b8798;
  border-bottom: 1px solid #e3e9f2;
  padding-bottom: 20px;
  margin: 0 0 8px;
}

.article-doc h2 {
  margin: 2em 0 0.6em;
  font-size: 1.42rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: #0f172a;
  font-weight: 700;
}

.article-doc h3 {
  margin: 1.6em 0 0.5em;
  font-size: 1.05rem;
  line-height: 1.35;
  color: #1e4f91;
  font-weight: 700;
}

.article-doc p, .article-doc li { font-size: 1rem; line-height: 1.72; }
.article-doc strong { color: #0f172a; }
.article-doc a { color: #1e4f91; }
.article-doc ul, .article-doc ol { padding-left: 22px; }
.article-doc li { margin-bottom: 6px; }

/* Formula / definition blocks */
.article-doc pre {
  background: linear-gradient(180deg, #f7fafd 0%, #f0f5fb 100%);
  border: 1px solid #d9e3f0;
  border-radius: 12px;
  padding: 16px 20px;
  overflow-x: auto;
  margin: 18px 0;
}
.article-doc pre code {
  background: none;
  border: none;
  padding: 0;
  font-family: "IBM Plex Mono", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.65;
  color: #1e4f91;
  font-weight: 600;
}
.article-doc code {
  background: #f0f5fb;
  border: 1px solid #d9e3f0;
  border-radius: 5px;
  padding: 0.08em 0.4em;
  font-family: "IBM Plex Mono", Consolas, monospace;
  font-size: 0.88em;
  color: #17385f;
}

.article-doc table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 18px 0;
  font-size: 0.95rem;
  border: 1px solid #dfe6f0;
  border-radius: 12px;
  overflow: hidden;
}
.article-doc th {
  text-align: left;
  background: #f4f8fc;
  color: #5b6b80;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 10px 14px;
  border-bottom: 1px solid #dfe6f0;
}
.article-doc td {
  text-align: left;
  vertical-align: top;
  padding: 10px 14px;
  border-bottom: 1px solid #e8eef6;
  background: #ffffff;
}
.article-doc tr:last-child td { border-bottom: none; }

.article-cta {
  border: 1px solid #cddcf0;
  background: linear-gradient(135deg, #eaf1fb 0%, #f2f7fd 100%);
  border-radius: 16px;
  padding: 26px 30px;
  margin: 40px 0 8px;
}
.article-cta h2 { margin: 0 0 10px; font-size: 1.3rem; }
.article-cta p { margin: 0 0 12px; }
.article-cta .button {
  margin-top: 0;
  background: #1e4f91;
  color: #ffffff;
  border-radius: 10px;
  font-weight: 600;
}
.article-cta .button:hover { background: #17385f; }
.article-cta .button-secondary {
  background: transparent;
  color: #1e4f91;
  border: 1px solid #1e4f91;
}
.article-cta .button-secondary:hover { background: #e3edf9; }

.article-related { margin-top: 34px; }
.article-related h2 { font-size: 1.3rem; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.related-card {
  display: block;
  border: 1px solid #dfe6f0;
  border-radius: 12px;
  padding: 16px 18px;
  text-decoration: none;
  color: #1e4f91;
  font-weight: 600;
  background: #ffffff;
  transition: border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}
.related-card:hover {
  border-color: #1e4f91;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.article-list { padding-left: 0; list-style: none; }
.article-list-topic {
  display: table;
  margin-bottom: 8px;
  padding: 3px 10px;
  border: 1px solid #cddcf0;
  border-radius: 999px;
  background: #eef3fb;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #1e4f91;
}
.article-list li {
  margin: 0 0 14px;
  border: 1px solid #dfe6f0;
  border-radius: 12px;
  padding: 18px 20px;
  background: #ffffff;
}
.article-list li a { color: #0f172a; text-decoration: none; font-size: 1.06rem; }
.article-list li a:hover { color: #1e4f91; }
.article-list .muted { color: #5b6b80; font-size: 0.94rem; }