/* ==========================================================
   Article (Insights detail page) styles
   ========================================================== */

/* ---------- Nav variant ---------- */
.nav--article {
  /* Always solid; article pages don't have a dark hero behind nav */
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--color-border-dark);
}

/* ---------- Article hero ---------- */
.article-hero {
  padding: 140px 0 0;
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) {
  .article-hero { padding-top: 168px; }
}
.article-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-text-on-dark-muted);
  margin-bottom: 32px;
  transition: color 0.2s var(--ease);
}
.article-hero__back:hover { color: white; }
.article-hero__inner {
  max-width: 820px;
}
.article-hero__eyebrow {
  color: var(--color-highlight);
}
.article-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 20px 0 0;
  color: white;
  text-wrap: balance;
}
.article-hero__sub {
  margin: 24px 0 0;
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.7;
  color: var(--color-text-on-dark-muted);
  max-width: 680px;
  text-wrap: pretty;
}
.article-hero__meta {
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--color-border-dark);
}
.article-hero__author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.article-hero__author-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-highlight));
  color: white;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  box-shadow: 0 6px 16px rgba(56, 189, 248, 0.32);
}
.article-hero__author-name {
  font-weight: 600;
  font-size: 14px;
  color: white;
}
.article-hero__author-role {
  font-size: 12px;
  color: var(--color-text-on-dark-muted);
  margin-top: 1px;
}
.article-hero__meta-sep {
  width: 1px;
  height: 28px;
  background: var(--color-border-dark);
}
.article-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.article-hero__meta-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-on-dark-muted);
  text-transform: uppercase;
}
.article-hero__meta-val {
  font-size: 14px;
  color: white;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ---------- Hero featured image ---------- */
.article-hero__image-wrap {
  padding-top: 64px;
  padding-bottom: 0;
  position: relative;
  z-index: 1;
}
.article-hero__image {
  position: relative;
  aspect-ratio: 21 / 9;
  max-height: 520px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: -120px; /* overlap into body section */
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(148, 163, 184, 0.16);
}
.article-hero__image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.article-hero__image-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(15, 23, 42, 0) 60%),
    linear-gradient(180deg, rgba(15, 23, 42, 0) 60%, rgba(15, 23, 42, 0.5) 100%);
}
.article-hero__image-tag {
  position: absolute;
  left: 24px;
  bottom: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: white;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 4px;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
@media (max-width: 768px) {
  .article-hero__image {
    aspect-ratio: 4 / 3;
    margin-bottom: -64px;
    border-radius: var(--radius);
  }
}

/* ---------- Article body ---------- */
.article-body {
  background: var(--color-bg-light);
  padding: 184px 0 96px;
  position: relative;
}
@media (max-width: 768px) {
  .article-body { padding: 120px 0 80px; }
}
.article-body__inner {
  max-width: 720px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.85;
  color: var(--color-text-dark);
}

.article-lead {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(19px, 1.9vw, 22px);
  line-height: 1.6;
  color: var(--color-text-dark);
  margin: 0 0 40px;
  letter-spacing: -0.005em;
  text-wrap: pretty;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.article-section {
  margin-top: 56px;
}
.article-section:first-child {
  margin-top: 0;
}
.article-section__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.article-section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 0 0 24px;
  text-wrap: balance;
}
.article-section__body > *:first-child {
  margin-top: 0;
}

.article-p {
  margin: 0 0 20px;
  text-wrap: pretty;
}
.article-p:last-child {
  margin-bottom: 0;
}
.article-p strong, .article-section__body strong {
  font-weight: 700;
  color: var(--color-text-dark);
  background: linear-gradient(180deg, transparent 60%, rgba(56, 189, 248, 0.25) 60%);
  padding: 0 2px;
}

/* ---------- Callout ---------- */
.article-callout {
  display: flex;
  gap: 16px;
  padding: 24px 28px;
  border-radius: var(--radius);
  background: rgba(37, 99, 235, 0.04);
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-left: 3px solid var(--color-primary);
  margin: 32px 0;
}
.article-callout--warn {
  background: rgba(245, 158, 11, 0.05);
  border-color: rgba(245, 158, 11, 0.2);
  border-left-color: #F59E0B;
}
.article-callout--tip {
  background: rgba(16, 185, 129, 0.05);
  border-color: rgba(16, 185, 129, 0.2);
  border-left-color: #10B981;
}
.article-callout__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 700;
}
.article-callout--warn .article-callout__icon { background: #F59E0B; }
.article-callout--tip .article-callout__icon { background: #10B981; }
.article-callout__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.article-callout__body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-dark);
}
.article-callout__body p {
  margin: 0;
}

/* ---------- Pull quote ---------- */
.article-quote {
  margin: 48px -12px;
  padding: 32px 40px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(56, 189, 248, 0.04));
  border: 1px solid rgba(37, 99, 235, 0.12);
  position: relative;
}
.article-quote__mark {
  position: absolute;
  top: 8px;
  left: 28px;
  font-family: var(--font-display);
  font-size: 72px;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.2;
  font-weight: 700;
}
.article-quote__text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.5;
  margin: 0 0 12px;
  position: relative;
  color: var(--color-text-dark);
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.article-quote__cite {
  font-style: normal;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  font-weight: 500;
}
@media (max-width: 768px) {
  .article-quote { margin: 32px 0; padding: 24px 24px 24px 28px; }
  .article-quote__mark { left: 18px; font-size: 56px; }
}

/* ---------- Steps list ---------- */
.article-steps {
  list-style: none;
  padding: 0;
  margin: 32px 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  counter-reset: article-step;
}
.article-step {
  display: flex;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius);
  background: white;
  border: 1px solid var(--color-border);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.article-step:hover {
  border-color: rgba(37, 99, 235, 0.3);
  transform: translateX(2px);
}
.article-step__num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-highlight));
  color: white;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.24);
}
.article-step__body { flex: 1; }
.article-step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  margin: 4px 0 8px;
  letter-spacing: -0.01em;
  line-height: 1.4;
}
.article-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-dark);
}

/* ---------- Check list ---------- */
.article-checklist {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 16px;
  line-height: 1.6;
}
.article-checklist__check {
  flex-shrink: 0;
  margin-top: 4px;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  display: grid;
  place-items: center;
}
.article-checklist__check svg { width: 14px; height: 14px; }

/* ---------- Key stats row ---------- */
.article-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin: 32px 0;
  padding: 28px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: white;
}
.article-stats__item {
  text-align: center;
}
.article-stats__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 3.4vw, 38px);
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--color-highlight), #A5B4FC);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.article-stats__label {
  font-size: 12px;
  color: var(--color-text-on-dark-muted);
  margin-top: 6px;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

/* ---------- Figure ---------- */
.article-figure {
  margin: 32px -12px;
  padding: 0;
}
.article-figure__body {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
}
.article-figure__body img,
.article-figure__body svg {
  display: block;
  width: 100%;
  height: auto;
}
.article-figure__caption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.5;
}
@media (max-width: 768px) {
  .article-figure { margin: 32px 0; }
}

/* ---------- Related articles ---------- */
.article-related {
  padding: 96px 0;
  background: var(--color-bg-muted);
  border-top: 1px solid var(--color-border);
}
.article-related__head {
  margin-bottom: 48px;
}
.article-related__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 16px 0 0;
}

/* ---------- Article CTA strip ---------- */
.article-cta {
  padding: 80px 0;
  background: var(--color-bg-light);
}
.article-cta__box {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 60%, #1E40AF 100%);
  border-radius: var(--radius-lg);
  padding: 56px;
  color: white;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.article-cta__box::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.18), transparent 60%);
  pointer-events: none;
}
@media (min-width: 900px) {
  .article-cta__box { grid-template-columns: 1.5fr 1fr; padding: 64px; }
}
.article-cta__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin: 16px 0 0;
  text-wrap: balance;
}
.article-cta__title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--color-highlight), #A5B4FC);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.article-cta__sub {
  color: var(--color-text-on-dark-muted);
  font-size: 15px;
  margin: 16px 0 0;
  line-height: 1.7;
  max-width: 480px;
}
.article-cta__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
  position: relative;
  z-index: 1;
}
@media (min-width: 900px) {
  .article-cta__actions { align-items: flex-end; }
  .article-cta__actions .btn { width: 100%; max-width: 280px; justify-content: center; }
}
@media (max-width: 768px) {
  .article-cta { padding: 56px 0; }
  .article-cta__box { padding: 36px 28px; }
}

/* ---------- Make 'reveal' visible by default on article pages ---------- */
/* Article content shouldn't depend on scroll observer; show immediately */
.article-body .reveal {
  opacity: 1;
  transform: none;
}