/* ==========================================================================
   Clear Sea — article page
   Loaded after clearsea.css + clearsea-v2.css on blog/*.html only.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Article hero
   -------------------------------------------------------------------------- */
.article-hero {
  position: relative;
  padding-block: clamp(8rem, 15vh, 11rem) clamp(2rem, 4vw, 3rem);
  text-align: center;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-faint);
}

.breadcrumb a { color: var(--text-dim); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--aqua); }
.breadcrumb i { font-size: 0.6rem; opacity: 0.5; }

.article-hero h1 {
  max-width: 20ch;
  margin: 0 auto 1.4rem;
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.article-hero .standfirst {
  max-width: 44rem;
  margin: 0 auto;
  color: var(--text-dim);
  font-size: clamp(1rem, 0.5vw + 0.92rem, 1.16rem);
  text-wrap: pretty;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem 1.4rem;
  margin-top: 2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--glass-line);
  font-size: 0.85rem;
  color: var(--text-faint);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.article-meta i { color: var(--aqua); font-size: 0.78rem; }

/* Decorative banner strip under the hero */
.article-banner {
  display: grid;
  place-items: center;
  height: clamp(150px, 26vw, 260px);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--indigo), var(--aqua-600));
  font-size: clamp(3rem, 8vw, 5.5rem);
  color: rgba(255, 255, 255, 0.9);
  overflow: hidden;
  position: relative;
}

.article-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 90% at 22% 0%, rgba(255, 255, 255, 0.3), transparent 62%);
}

.article-banner i {
  position: relative;
  z-index: 1;
  animation: floaty 7s var(--ease-in-out) infinite;
}

/* --------------------------------------------------------------------------
   2. Prose
   -------------------------------------------------------------------------- */
.prose {
  max-width: 46rem;
  margin-inline: auto;
  font-size: clamp(1rem, 0.35vw + 0.95rem, 1.09rem);
  line-height: 1.85;
  color: var(--text-dim);
}

.prose > * + * { margin-top: 1.35rem; }

.prose h2 {
  margin-top: 3.2rem;
  margin-bottom: 0.2rem;
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  color: var(--text);
  letter-spacing: -0.03em;
  scroll-margin-top: 6rem;
}

.prose h3 {
  margin-top: 2.2rem;
  margin-bottom: 0.2rem;
  font-size: clamp(1.1rem, 1.8vw, 1.28rem);
  color: var(--text);
  scroll-margin-top: 6rem;
}

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

.prose a {
  color: var(--aqua);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.3s;
}

.prose a:hover { color: var(--aqua-300); }

.prose ul,
.prose ol {
  display: grid;
  gap: 0.75rem;
  padding-left: 0;
}

.prose ol { counter-reset: step; }

.prose li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.prose ul > li::before {
  content: "";
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  margin-top: 0.75rem;
  border-radius: 50%;
  background: var(--aqua);
}

.prose ol > li::before {
  counter-increment: step;
  content: counter(step);
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  margin-top: 0.28rem;
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--ink-900);
  background: var(--aqua);
}

.prose blockquote {
  position: relative;
  margin-block: 2.2rem;
  padding: 1.5rem 1.7rem;
  border: 1px solid var(--glass-line);
  border-left: 3px solid var(--aqua);
  border-radius: 0 18px 18px 0;
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-size: 1.06em;
  color: var(--text);
}

.prose blockquote p + p { margin-top: 0.8rem; }

.prose figure { margin-block: 2rem; }

.prose figcaption {
  margin-top: 0.7rem;
  font-size: 0.84rem;
  color: var(--text-faint);
  text-align: center;
}

.prose hr {
  margin-block: 2.6rem;
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-line), transparent);
}

/* --------------------------------------------------------------------------
   3. Callouts
   -------------------------------------------------------------------------- */
.callout {
  display: flex;
  gap: 1.1rem;
  margin-block: 2.2rem;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.callout__ico {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  font-size: 1.05rem;
  color: var(--aqua);
  background: linear-gradient(140deg, rgba(56, 224, 255, 0.15), rgba(64, 56, 160, 0.32));
  border: 1px solid var(--glass-line);
}

.callout h4 {
  font-size: 0.98rem;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.callout p { font-size: 0.93rem; line-height: 1.7; margin: 0; }
.callout p + p { margin-top: 0.6rem; }

.callout--warn { border-left: 3px solid #ffc94d; }
.callout--warn .callout__ico { color: #ffc94d; background: rgba(255, 201, 77, 0.12); }

/* Key takeaways panel */
.takeaways {
  margin-block: 2.4rem;
  padding: 1.6rem 1.8rem;
  border: 1px solid var(--glass-line-lit);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(64, 56, 160, 0.32), rgba(8, 18, 49, 0.6));
}

.takeaways h4 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--aqua-300);
}

.takeaways ul { display: grid; gap: 0.7rem; }

.takeaways li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: 0.95rem;
  line-height: 1.65;
}

.takeaways li i {
  flex-shrink: 0;
  margin-top: 0.4rem;
  font-size: 0.78rem;
  color: var(--aqua);
}

/* --------------------------------------------------------------------------
   4. Tables inside prose
   -------------------------------------------------------------------------- */
.prose .table-card { margin-block: 2rem; }
.prose table.data { min-width: 460px; font-size: 0.88rem; }

/* --------------------------------------------------------------------------
   5. End-of-article CTA
   -------------------------------------------------------------------------- */
.article-cta {
  max-width: 46rem;
  margin: clamp(3rem, 6vw, 4.5rem) auto 0;
  padding: clamp(1.8rem, 3.5vw, 2.6rem);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(90% 140% at 12% 0%, rgba(64, 56, 160, 0.5), transparent 60%),
    rgba(8, 18, 49, 0.62);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  text-align: center;
}

.article-cta h3 {
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  margin-bottom: 0.7rem;
}

.article-cta p {
  max-width: 34rem;
  margin: 0 auto 1.6rem;
  color: var(--text-dim);
  font-size: 0.96rem;
}

.article-cta .links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
}

/* --------------------------------------------------------------------------
   6. Related articles
   -------------------------------------------------------------------------- */
.related { margin-top: clamp(3.5rem, 7vw, 5.5rem); }

.related__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.8rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--glass-line);
}

.related__head h2 {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  letter-spacing: -0.03em;
}

.related__head a {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--aqua);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.related__head a i { transition: transform 0.4s var(--ease-out); }
.related__head a:hover i { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   7. Reading progress (reuses .scroll-progress from the main sheet)
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  .prose blockquote { padding: 1.2rem 1.3rem; }
  .callout { flex-direction: column; gap: 0.9rem; }
}