/* ============================================================
   CONCERNS / CONDITION PAGES
   Shared styling for /concerns/* (hub, domain hubs, named pages).
   Also reused by /performance/*.
   ============================================================ */

/* --------------------------------------------------------
   PAGE HERO — calmer than home hero
   -------------------------------------------------------- */
.page-hero {
  position: relative;
  padding-block: var(--space-12) var(--space-16);
  background: var(--bg-page);
  border-bottom: var(--border-thin);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -120px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(127,182,196,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-16);
  align-items: end;
}
.page-hero__copy { max-width: 38ch; }
.page-hero__title {
  font-family: var(--font-display);
  font-weight: var(--fw-display-md);
  font-size: var(--fs-h1);
  line-height: var(--lh-snug);
  color: var(--color-deep-night);
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin-top: var(--space-4);
}
.page-hero__title em {
  font-style: italic;
  color: var(--color-warm-amber);
}
.page-hero__lead {
  font-size: var(--fs-body-lg);
  color: var(--text-secondary);
  margin-top: var(--space-6);
  max-width: 56ch;
}
.page-hero__cta {
  margin-top: var(--space-6);
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.page-hero__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-deep-night);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-md);
}

@media (max-width: 1024px) {
  .page-hero__inner { grid-template-columns: 1fr; gap: var(--space-8); }
  .page-hero__visual { aspect-ratio: 3 / 2; max-width: 600px; }
}

/* Hero variants — solid colour bg for domain-specific identity */
.page-hero--mood     { background: linear-gradient(180deg, #FAF6EF 0%, #F2EDDF 100%); }
.page-hero--focus    { background: linear-gradient(180deg, #FAF6EF 0%, #EFE8DC 100%); }
.page-hero--memory   { background: linear-gradient(180deg, #FAF6EF 0%, #ECE7DC 100%); }
.page-hero--recovery { background: linear-gradient(180deg, #FAF6EF 0%, #EAE5DA 100%); }
.page-hero--learning { background: linear-gradient(180deg, #FAF6EF 0%, #E8E3D9 100%); }
.page-hero--sleep    { background: linear-gradient(180deg, #FAF6EF 0%, #E5E0D6 100%); }

/* --------------------------------------------------------
   DOMAIN-HUB CARD — used on /concerns/index.html
   Richer than the homepage focus-card.
   -------------------------------------------------------- */
.domain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
@media (max-width: 880px) { .domain-grid { grid-template-columns: 1fr; } }

.domain-card {
  background: var(--bg-surface);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  padding: var(--space-12) var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-decoration: none;
  color: inherit;
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.domain-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-mist-teal);
  color: inherit;
}
.domain-card__icon {
  width: 56px; height: 56px;
  background: var(--color-sea-mist);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ocean-teal);
}
.domain-card__icon svg { width: 30px; height: 30px; }
.domain-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-display-md);
  color: var(--color-deep-night);
  line-height: var(--lh-h3);
}
.domain-card__desc { color: var(--text-secondary); font-size: var(--fs-body); flex: 1; }
.domain-card__list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.domain-card__list li {
  background: var(--color-cloud);
  padding: 4px var(--space-3);
  font-size: var(--fs-caption);
  font-weight: var(--fw-ui-medium);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
}
.domain-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ocean-teal);
  font-weight: var(--fw-ui-semi);
  margin-top: auto;
  text-decoration: none;
}
.domain-card__link::after {
  content: "→";
  transition: transform var(--dur-base) var(--ease-out);
}
.domain-card:hover .domain-card__link::after { transform: translateX(4px); }

/* --------------------------------------------------------
   NAMED-CONDITION CARD — used on domain hubs
   Three-column under most domains.
   -------------------------------------------------------- */
.condition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 1024px) { .condition-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .condition-grid { grid-template-columns: 1fr; } }

.condition-card {
  background: var(--bg-surface);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}
.condition-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: inherit;
}
.condition-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-display-md);
  color: var(--color-deep-night);
}
.condition-card__hint {
  font-size: var(--fs-body-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}
.condition-card__desc {
  color: var(--text-secondary);
  font-size: var(--fs-body);
  flex: 1;
}
.condition-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ocean-teal);
  font-weight: var(--fw-ui-semi);
  margin-top: var(--space-2);
  text-decoration: none;
}
.condition-card__link::after { content: "→"; transition: transform var(--dur-base) var(--ease-out); }
.condition-card:hover .condition-card__link::after { transform: translateX(4px); }

/* --------------------------------------------------------
   ARTICLE — long-form prose blocks
   -------------------------------------------------------- */
.article {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-16);
  align-items: start;
}
@media (max-width: 1024px) {
  .article { grid-template-columns: 1fr; gap: var(--space-12); }
}
.article__body {
  max-width: var(--article-measure);
}
.article__body > * + * { margin-top: var(--space-6); }
.article__body h2 {
  font-size: var(--fs-h2);
  font-family: var(--font-display);
  margin-top: var(--space-12);
}
.article__body h3 {
  font-size: var(--fs-h3);
  margin-top: var(--space-8);
}
.article__body p { color: var(--text-primary); font-size: var(--fs-body); line-height: var(--lh-body); }
.article__body p.lead { font-size: var(--fs-body-lg); color: var(--text-secondary); }
.article__body ul, .article__body ol { padding-left: var(--space-6); }
.article__body li + li { margin-top: var(--space-2); }
.article__body li { color: var(--text-primary); }
.article__body strong { color: var(--color-deep-night); font-weight: var(--fw-ui-semi); }

.article__sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.toc {
  background: var(--bg-surface);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  font-size: var(--fs-body-sm);
}
.toc h4 {
  font-size: var(--fs-caption);
  font-weight: var(--fw-ui-semi);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ocean-teal);
  margin-bottom: var(--space-3);
}
.toc ol {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  counter-reset: toc;
}
.toc li {
  counter-increment: toc;
  padding-left: var(--space-6);
  position: relative;
}
.toc li::before {
  content: counter(toc, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  color: var(--color-warm-amber);
  font-weight: var(--fw-display-md);
}
.toc a {
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  padding: 2px 0;
  font-weight: var(--fw-ui-medium);
}
.toc a:hover { color: var(--color-ocean-teal); }

@media (max-width: 1024px) {
  .article__sidebar { position: static; }
}

/* --------------------------------------------------------
   CARE PATHWAY — vertical timeline
   -------------------------------------------------------- */
.pathway {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  padding-left: var(--space-12);
}
.pathway::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-cloud);
}
.pathway-step {
  position: relative;
}
.pathway-step::before {
  content: "";
  position: absolute;
  left: calc(var(--space-12) * -1 + 14px);
  top: 4px;
  width: 18px; height: 18px;
  background: var(--color-warm-amber);
  border: 3px solid var(--color-warm-cream);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--color-warm-amber);
}
.pathway-step h3 {
  font-family: var(--font-ui);
  font-size: var(--fs-h4);
  color: var(--color-deep-night);
  margin-bottom: var(--space-2);
}
.pathway-step p { color: var(--text-secondary); font-size: var(--fs-body); }
.pathway-step__meta {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: var(--fs-caption);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ocean-teal);
  font-weight: var(--fw-ui-semi);
}

/* --------------------------------------------------------
   INFO GRID — two-column "can / cannot" sidebar
   For Learning & processing page (and reused elsewhere).
   -------------------------------------------------------- */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
@media (max-width: 768px) {
  .info-grid { grid-template-columns: 1fr; }
}
.info-grid__col {
  padding: var(--space-8);
}
.info-grid__col + .info-grid__col {
  border-left: var(--border-thin);
}
@media (max-width: 768px) {
  .info-grid__col + .info-grid__col {
    border-left: none;
    border-top: var(--border-thin);
  }
}
.info-grid__col--can {
  background: rgba(90, 143, 103, 0.06);
}
.info-grid__col--cannot {
  background: rgba(184, 69, 61, 0.04);
}
.info-grid__col h4 {
  font-family: var(--font-ui);
  font-size: var(--fs-h4);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.info-grid__col--can h4 { color: var(--color-success); }
.info-grid__col--cannot h4 { color: var(--color-error); }
.info-grid__col ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.info-grid__col li {
  padding-left: var(--space-6);
  position: relative;
  color: var(--text-primary);
  font-size: var(--fs-body-sm);
  line-height: 1.55;
}
.info-grid__col--can li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  color: var(--color-success);
  font-weight: var(--fw-ui-semi);
}
.info-grid__col--cannot li::before {
  content: "—";
  position: absolute;
  left: 0; top: 0;
  color: var(--color-error);
  font-weight: var(--fw-ui-semi);
}

/* --------------------------------------------------------
   CITATIONS / EVIDENCE LIST
   -------------------------------------------------------- */
.citations {
  list-style: none;
  padding: 0;
  counter-reset: cite;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  font-size: var(--fs-body-sm);
}
.citations li {
  counter-increment: cite;
  padding-left: var(--space-8);
  position: relative;
  color: var(--text-secondary);
  line-height: 1.55;
}
.citations li::before {
  content: counter(cite);
  position: absolute;
  left: 0; top: 0;
  width: 24px;
  font-family: var(--font-display);
  font-weight: var(--fw-display-md);
  color: var(--color-warm-amber);
}
.citations a { color: var(--color-ocean-teal); }

/* --------------------------------------------------------
   RELATED ARTICLES STRIP
   -------------------------------------------------------- */
.related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 1024px) { .related { grid-template-columns: 1fr; } }

/* --------------------------------------------------------
   PERFORMANCE-HUB CROSS-LINK BAND
   -------------------------------------------------------- */
.cross-link-band {
  background: var(--color-sea-mist);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-8);
  align-items: center;
}
@media (max-width: 768px) {
  .cross-link-band { grid-template-columns: 1fr; }
}
.cross-link-band h3 {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  color: var(--color-deep-night);
}
.cross-link-band p {
  color: var(--color-deep-night);
  margin-top: var(--space-2);
  font-size: var(--fs-body);
  max-width: 60ch;
}

/* --------------------------------------------------------
   PAGE FOOT — page-specific scope-and-safety + CTA
   -------------------------------------------------------- */
.page-foot {
  margin-top: var(--space-16);
  padding-top: var(--space-12);
  border-top: var(--border-thin);
}

/* --------------------------------------------------------
   FEELS-LIKE ROWS — biology → lived-experience (3-col → stack)
   Used on condition pages. Inline-styled in HTML; only the
   responsive collapse lives here.
   -------------------------------------------------------- */
@media (max-width: 768px) {
  [aria-labelledby="feels-title"] [style*="grid-template-columns: 1fr auto 1fr"] {
    grid-template-columns: 1fr !important;
    text-align: center;
    gap: var(--space-4) !important;
  }
  [aria-labelledby="feels-title"] [style*="grid-template-columns: 1fr auto 1fr"] > div:nth-child(2) {
    margin-inline: auto;
  }
}