.article-page-body { background: #f5faff; }
.article-main { padding-top: 48px; }
/* RESERVED ADVERTISING LAYOUT — DO NOT REMOVE the 320px desktop column.
   Article and email-answer pages intentionally reserve it while ads are absent.
   Future book/PDF promotions or approved AdSense units belong in .article-sidebar. */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
  gap: 34px;
  padding-bottom: 82px;
}
.brain-article {
  display: flex;
  min-width: 0;
  overflow: hidden;
  flex-direction: column;
  background: var(--white);
  border: 1px solid rgba(6, 43, 99, 0.08);
  border-radius: 16px;
  box-shadow: 0 20px 55px rgba(6, 43, 99, 0.1);
}
.article-breadcrumb {
  display: flex;
  padding: 17px 32px;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  background: #f8fbfe;
  border-bottom: 1px solid rgba(6, 43, 99, 0.08);
}
.article-breadcrumb a { color: var(--blue); text-decoration: none; }
.article-breadcrumb a:hover,
.article-breadcrumb a:focus-visible { text-decoration: underline; text-underline-offset: 3px; }
.article-breadcrumb span[aria-hidden] { color: rgba(8, 120, 232, 0.45); font-size: 1.1rem; }
.article-hero { margin: 0; overflow: hidden; background: var(--blue-pale); }
.article-hero img { width: 100%; height: auto; aspect-ratio: 7 / 4; object-fit: cover; }
.article-head { padding: 31px 36px 0; }
.category-tag {
  display: inline-flex;
  margin: 0 0 13px;
  padding: 7px 14px;
  color: var(--white);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  line-height: 1;
  background: linear-gradient(135deg, var(--blue-bright), var(--blue));
  border-radius: 999px;
}
.article-head h1 {
  max-width: 800px;
  margin: 0;
  color: var(--navy);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.05em;
}
.article-standfirst {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
  line-height: 1.65;
}
.article-meta {
  display: flex;
  margin: 19px 0 0;
  padding-bottom: 25px;
  align-items: center;
  gap: 10px;
  color: #7085a2;
  font-size: 0.76rem;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.article-meta i { width: 4px; height: 4px; background: rgba(8, 120, 232, 0.45); border-radius: 50%; }
.article-body {
  padding: 31px 36px 42px;
  color: #3c5577;
  font-size: 1rem;
  line-height: 1.75;
}
.article-body > p,
.supplement-entry p { margin: 0 0 20px; }
.article-body h2 {
  position: relative;
  margin: 43px 0 14px;
  padding-top: 20px;
  color: var(--navy);
  font-size: clamp(1.3rem, 2.1vw, 1.58rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
}
.article-body > h2::before,
.article-sources > h2::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--teal);
  border-radius: 2px;
}
.supplement-entry h2 { display: flex; padding-top: 0; align-items: center; gap: 12px; }
.supplement-entry h2 span {
  display: inline-grid;
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--white);
  font-size: 0.92rem;
  background: var(--blue);
  border-radius: 50%;
  box-shadow: 0 7px 16px rgba(8, 120, 232, 0.22);
}
.article-body strong { color: var(--navy); }
.article-body a { color: #076ccf; font-weight: 600; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article-highlights {
  margin-bottom: 38px;
  overflow: hidden;
  background: #effbf8;
  border: 1px solid rgba(19, 170, 139, 0.22);
  border-radius: 10px;
  box-shadow: 0 4px 18px rgba(6, 43, 99, 0.05);
}
.article-highlights h2 {
  margin: 0;
  padding: 15px 26px;
  color: var(--white);
  font-size: 0.95rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  background: var(--navy);
}
.article-highlights ul { margin: 0; padding: 23px 26px; list-style: none; }
.article-highlights li {
  position: relative;
  margin-bottom: 13px;
  padding-left: 25px;
  font-size: 0.94rem;
  line-height: 1.62;
}
.article-highlights li::before {
  content: "";
  position: absolute;
  top: 0.66em;
  left: 3px;
  width: 8px;
  height: 8px;
  background: var(--teal);
  border-radius: 50%;
}
.article-highlights li:last-child { margin-bottom: 0; }
.article-callout {
  display: flex;
  margin: 28px 0 10px !important;
  padding: 18px 20px;
  align-items: flex-start;
  gap: 14px;
  color: var(--navy);
  font-weight: 600;
  background: #effbf8;
  border: 1px solid rgba(19, 170, 139, 0.2);
  border-left: 4px solid var(--teal);
  border-radius: 0 9px 9px 0;
}
.article-callout svg {
  flex: 0 0 23px;
  width: 23px;
  height: 23px;
  margin-top: 2px;
  fill: none;
  stroke: var(--teal);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.article-body blockquote {
  margin: 31px 0;
  padding: 24px 28px;
  color: var(--navy);
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.6;
  background: #f4f8fd;
  border-left: 5px solid var(--teal);
  border-radius: 4px 10px 10px 4px;
}
.article-body blockquote p { margin: 0; }
.article-body blockquote cite {
  display: block;
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.article-sources { margin-top: 38px; }
.article-sources ul { margin: 0; padding-left: 20px; }
.article-sources li { margin-bottom: 9px; }
.article-disclaimer {
  margin-top: 34px !important;
  padding: 17px 19px;
  color: #667d9a;
  font-size: 0.78rem;
  line-height: 1.65;
  background: #f7f9fc;
  border: 1px solid rgba(6, 43, 99, 0.08);
  border-radius: 10px;
}
.article-foot {
  display: flex;
  margin: 0 36px;
  padding: 25px 0 35px;
  justify-content: center;
  border-top: 1px solid var(--line);
}
.article-back {
  display: inline-flex;
  padding: 12px 18px;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid rgba(8, 120, 232, 0.23);
  border-radius: 9px;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}
.article-back svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.article-back:hover,
.article-back:focus-visible { color: var(--white); background: var(--blue); transform: translateY(-1px); }
.article-sidebar {
  position: sticky;
  top: 24px;
  display: grid;
  gap: 28px;
}
/* Keep the desktop grid column reserved; hide the empty landmark itself.
   At <=980px the existing single-column layout leaves no blank mobile row. */
/* Keep HTML comments inside the aside, but avoid placeholder whitespace/content:
   :empty hides the unused landmark/mobile row; the desktop grid track stays reserved. */
.article-sidebar:empty { display: none; }
.article-sidebar img { display: block; max-width: 100%; height: auto; }
.ad-slot {
  display: grid;
  width: 100%;
  place-content: center;
  color: #8ca0b8;
  text-align: center;
  background: repeating-linear-gradient(-45deg, #f8fbfe, #f8fbfe 10px, #f2f7fb 10px, #f2f7fb 20px);
  border: 1px solid #d7e4ef;
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(6, 43, 99, 0.07);
}
.ad-slot--rectangle { min-height: 250px; }
.ad-slot--skyscraper { min-height: 600px; }
.ad-slot span { margin-bottom: 8px; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.15em; }
.ad-slot strong { color: #7188a4; font-size: 1rem; }
.ad-slot small { margin-top: 5px; font-size: 0.69rem; }
.article-main .newsletter { background: linear-gradient(180deg, #f5faff 0 50%, var(--navy) 50%); }

@media (max-width: 980px) {
  .article-layout { grid-template-columns: 1fr; max-width: 820px; }
  .article-sidebar { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ad-slot--skyscraper { min-height: 250px; }
  .ad-slot:last-child { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .article-main { padding-top: 24px; }
  .article-layout { width: 100%; gap: 26px; padding-bottom: 52px; }
  .brain-article { border-right: 0; border-left: 0; border-radius: 0; }
  .article-breadcrumb { order: 0; padding: 14px 20px; }
  .article-head { order: 1; padding: 23px 20px 0; }
  .article-head h1 { font-size: clamp(1.85rem, 9vw, 2.45rem); }
  .article-standfirst { font-size: 0.98rem; }
  .article-hero { order: 2; margin-top: 20px; }
  .article-body { order: 3; padding: 24px 20px 32px; font-size: 0.96rem; }
  .article-foot { order: 4; margin-inline: 20px; padding-bottom: 28px; }
  .article-highlights { margin-bottom: 31px; }
  .article-highlights h2,
  .article-highlights ul { padding-inline: 20px; }
  .article-body h2 { margin-top: 37px; }
  .supplement-entry h2 { align-items: flex-start; }
  .article-callout { padding: 16px; }
  .article-sidebar { grid-template-columns: minmax(0, 1fr); width: min(100% - 28px, 360px); margin-inline: auto; }
  .ad-slot:last-child { grid-column: auto; }
}