/* PRAXIA Editorial Articles v1
   Separate asset to support long-lived immutable caching on /assets/css/*.
*/
.px-article {
  padding: clamp(3.5rem, 7vw, 7rem) 0;
}

.px-article__head {
  max-width: 900px;
  margin: 0 auto 2.75rem;
}

.px-article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem 1rem;
  align-items: center;
  margin-top: 1.25rem;
  color: var(--text-muted);
  font-size: var(--fs-xs);
}

.px-article__body {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.px-article__body > p:first-child {
  font-size: 1.12rem;
  line-height: 1.75;
  color: var(--text);
}

.px-article__body h2 {
  margin: 3.25rem 0 1rem;
  color: var(--text);
  font-size: clamp(1.7rem, 1.45rem + .85vw, 2.25rem);
  line-height: 1.18;
  letter-spacing: -.025em;
  max-width: 22ch;
}

.px-article__body h3 {
  margin: 2rem 0 .75rem;
  color: var(--text);
  font-size: clamp(1.15rem, 1rem + .45vw, 1.4rem);
  line-height: 1.25;
}

.px-article__body p {
  margin: 0 0 1.25rem;
}

.px-article__body ul,
.px-article__body ol {
  margin: 0 0 1.5rem 1.25rem;
  display: grid;
  gap: .55rem;
}

.px-article__body li::marker {
  color: var(--px-flow);
  font-weight: 700;
}

.px-article__body strong {
  color: var(--text);
}

.px-article__body a:not(.px-link):not(.px-btn) {
  color: var(--accent-strong);
  text-decoration: underline;
  text-decoration-color: var(--accent-line);
  text-underline-offset: .2em;
}

.px-article__body a:not(.px-link):not(.px-btn):hover {
  text-decoration-color: currentColor;
}

.px-article__formula {
  margin: 1.5rem 0;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--px-sand-soft);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: .92rem;
  line-height: 1.55;
  overflow: auto;
}

.px-article__callout {
  margin: 2rem 0;
  padding: 1.4rem 1.5rem;
  border-left: 3px solid var(--px-flow);
  background: var(--accent-tint);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  color: var(--text);
}

.px-article__callout p:last-child {
  margin-bottom: 0;
}

.px-article__nav {
  max-width: 800px;
  margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: space-between;
}

.px-article__related {
  margin-top: 4rem;
}

@media (max-width: 720px) {
  .px-article {
    padding: 3rem 0 4rem;
  }

  .px-article__body {
    font-size: 1rem;
    line-height: 1.72;
  }

  .px-article__body > p:first-child {
    font-size: 1.04rem;
  }

  .px-article__body h2 {
    margin-top: 2.5rem;
    font-size: clamp(1.55rem, 7vw, 1.95rem);
  }

  .px-article__meta {
    align-items: flex-start;
    flex-direction: column;
    gap: .35rem;
  }
}


/* Related perspectives / topic-cluster navigation */
.px-related {
  max-width: 800px;
  margin: 4rem auto 0;
  padding-top: 2.5rem;
  border-top: 1px solid var(--line);
}
.px-related__head {
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:1rem;
  margin-bottom:1.25rem;
}
.px-related__head h2 {
  margin:0;
  max-width:18ch;
  font-size:clamp(1.55rem,1.35rem + .7vw,2rem);
  line-height:1.15;
  letter-spacing:-.025em;
}
.px-related__head p {
  margin:0;
  color:var(--text-muted);
  font-size:.82rem;
}
.px-related__grid {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:.75rem;
}
.px-related__card {
  display:block;
  min-height:160px;
  padding:1.15rem;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--surface-card);
  color:inherit;
  text-decoration:none;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.px-related__card:hover {
  transform:translateY(-2px);
  border-color:var(--accent-line);
  box-shadow:var(--sh-sm);
}
.px-related__card small {
  display:block;
  margin-bottom:.8rem;
  color:var(--text-muted);
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.px-related__card strong {
  display:block;
  color:var(--text);
  font-size:.98rem;
  line-height:1.35;
}
.px-related__card span {
  display:block;
  margin-top:.7rem;
  color:var(--accent-strong);
  font-size:.78rem;
  font-weight:700;
}
.px-related__hub {
  margin-top:1rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:1rem 1.15rem;
  border-radius:var(--r-md);
  background:var(--accent-tint);
}
.px-related__hub p {
  margin:0;
  color:var(--text-soft);
  font-size:.82rem;
}
@media (max-width:720px) {
  .px-related__head {
    align-items:start;
    flex-direction:column;
  }
  .px-related__grid { grid-template-columns:1fr; }
  .px-related__card { min-height:0; }
  .px-related__hub {
    align-items:flex-start;
    flex-direction:column;
  }
}