/* ===== SkillsUniversity.org — Kids Blog Stylesheet =====
   Palette + type matched to /ai-fundamentals-for-kids/ (gold on navy) */

:root {
  --navy: #050d1f;
  --navy2: #08152e;
  --navy3: #0d1f45;
  --gold: #c9971f;
  --gold-bright: #e6b333;
  --gold-glow: #f0c84d;
  --cream: #ffe066;
  --gold-soft: #f5c842;
  --white: #ffffff;
  --white80: rgba(255,255,255,0.8);
  --white65: rgba(255,255,255,0.65);
  --white50: rgba(255,255,255,0.5);
  --white20: rgba(255,255,255,0.12);
  --white10: rgba(255,255,255,0.07);
  --border: rgba(230,179,51,0.25);
  --font-display: 'Plus Jakarta Sans', 'Arial Black', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', Courier, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white80);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% -8%, rgba(201,151,31,0.14), transparent 65%),
    radial-gradient(ellipse 44% 40% at 88% 12%, rgba(255,224,102,0.06), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.container-narrow { max-width: 720px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

a { color: var(--gold-bright); text-decoration: none; }
a:hover { color: var(--cream); }

/* ===== NAV ===== */
header.site-nav {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(5,13,31,0.92);
  backdrop-filter: blur(10px);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.01em;
}

.nav-logo img { width: 38px; height: auto; display: block; }
.nav-logo .brand-name span { color: var(--gold-bright); }
.nav-logo .brand-tag { display: block; font-size: 0.6rem; color: var(--white50); font-style: italic; font-weight: 500; letter-spacing: 0.03em; }

.nav-links { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }

.nav-links a {
  color: var(--white65);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--gold-bright); }

.nav-cta {
  background: linear-gradient(135deg, var(--gold) 0%, #9c7016 100%);
  color: var(--white) !important;
  padding: 9px 18px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: 0 4px 16px rgba(201,151,31,0.32);
}

.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(201,151,31,0.45); color: var(--white) !important; }

/* ===== BREADCRUMB ===== */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--white50);
  letter-spacing: 0.02em;
  margin: 28px 0 0;
}
.breadcrumb a { color: var(--white50); }
.breadcrumb a:hover { color: var(--gold-bright); }

/* ===== ARTICLE HEADER ===== */
.article-header { padding: 24px 0 34px; text-align: left; }

.article-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--gold-bright);
  background: rgba(201,151,31,0.12);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
  margin-bottom: 18px;
}

.article-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.5vw, 2.95rem);
  line-height: 1.1;
  color: var(--white);
  letter-spacing: -0.022em;
  margin-bottom: 18px;
}

.article-title .accent {
  background: linear-gradient(110deg, #d9a635 0%, #ffe066 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.article-dek {
  font-size: 1.12rem;
  color: var(--white65);
  max-width: 620px;
  margin-bottom: 22px;
  line-height: 1.7;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.84rem;
  color: var(--white50);
  flex-wrap: wrap;
}

.article-meta .dot { color: var(--white20); }

/* ===== ARTICLE BODY ===== */
.article-body { padding-bottom: 56px; }

.article-body h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.52rem;
  color: var(--white);
  margin: 42px 0 16px;
  letter-spacing: -0.018em;
}

.article-body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.16rem;
  color: var(--white);
  margin: 30px 0 12px;
  letter-spacing: -0.01em;
}

.article-body p { margin-bottom: 18px; font-size: 1.03rem; }

.article-body ul, .article-body ol { margin: 0 0 18px 22px; }
.article-body li { margin-bottom: 10px; font-size: 1.03rem; }

.article-body strong { color: var(--white); }

.article-body a { border-bottom: 1px solid rgba(230,179,51,0.4); }
.article-body a:hover { border-bottom-color: var(--cream); }

/* Age-stage callout table */
.age-table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0 30px;
  font-size: 0.96rem;
}
.age-table th, .age-table td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--white10);
  vertical-align: top;
}
.age-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
  background: rgba(201,151,31,0.08);
}
.age-table td:first-child { color: var(--white); font-weight: 600; white-space: nowrap; }

.pull-box {
  background: linear-gradient(160deg, var(--navy2), var(--navy3));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 26px;
  margin: 30px 0;
}

.pull-box-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--gold-glow);
  margin-bottom: 8px;
  display: block;
}

.pull-box p:last-child { margin-bottom: 0; }

/* ===== MID-ARTICLE CTA ===== */
.mid-cta {
  background: linear-gradient(150deg, rgba(201,151,31,0.16), rgba(255,224,102,0.05));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  margin: 40px 0;
  text-align: center;
}

.mid-cta-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.18rem;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.mid-cta-desc { color: var(--white65); font-size: 0.95rem; margin-bottom: 18px; max-width: 520px; margin-left: auto; margin-right: auto; }

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold) 0%, #9c7016 100%);
  color: var(--white);
  font-weight: 700;
  font-size: 0.94rem;
  padding: 13px 28px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(201,151,31,0.3);
  border-bottom: none !important;
}

.btn-primary:hover { transform: translateY(-1px); color: var(--white); box-shadow: 0 10px 28px rgba(201,151,31,0.42); }

.mid-cta-note { display: block; margin-top: 12px; font-size: 0.78rem; color: var(--white50); }

/* ===== KEY TAKEAWAY / TL;DR ===== */
.tldr {
  background: var(--navy2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 8px 0 34px;
}
.tldr-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--gold-bright);
  display: block;
  margin-bottom: 8px;
}
.tldr p { margin-bottom: 0; font-size: 0.98rem; color: var(--white80); }

/* ===== FAQ ===== */
.faq-block { margin: 12px 0 20px; }
.faq-q {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--white);
  margin: 24px 0 8px;
}
.faq-a { font-size: 1.0rem; color: var(--white80); }

/* ===== RELATED POSTS ===== */
.related-section { padding: 40px 0 70px; border-top: 1px solid var(--border); }

.related-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 20px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-card {
  background: var(--navy2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  display: block;
  transition: border-color 0.2s, transform 0.2s;
}

.related-card:hover { border-color: var(--gold-bright); transform: translateY(-2px); }

.related-card-cat {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gold-bright);
  margin-bottom: 8px;
  display: block;
}

.related-card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--white);
  line-height: 1.4;
  border-bottom: none !important;
}

/* ===== BLOG INDEX ===== */
.blog-hero { padding: 56px 0 34px; text-align: center; }

.blog-hero-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-bottom: 16px;
}

.blog-hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  color: var(--white);
  letter-spacing: -0.022em;
  margin-bottom: 16px;
}

.blog-hero-title .accent {
  background: linear-gradient(110deg, #d9a635 0%, #ffe066 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.blog-hero-desc { color: var(--white65); font-size: 1.06rem; max-width: 580px; margin: 0 auto; line-height: 1.7; }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  padding: 20px 0 60px;
}

.blog-card {
  background: linear-gradient(160deg, var(--navy2), var(--navy3));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  transition: border-color 0.2s, transform 0.2s;
}

.blog-card:hover { border-color: var(--gold-bright); transform: translateY(-3px); }

.blog-card-cat {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
}

.blog-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.22rem;
  color: var(--white);
  line-height: 1.32;
  letter-spacing: -0.01em;
}

.blog-card-desc { color: var(--white65); font-size: 0.92rem; flex-grow: 1; }

.blog-card-read {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--gold-bright);
}

/* Index CTA band */
.index-cta {
  background: linear-gradient(150deg, rgba(201,151,31,0.16), rgba(255,224,102,0.05));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 40px 32px;
  margin: 10px 0 70px;
  text-align: center;
}
.index-cta h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: var(--white);
  letter-spacing: -0.015em;
  margin-bottom: 12px;
}
.index-cta p { color: var(--white65); max-width: 500px; margin: 0 auto 20px; }

/* ===== FOOTER ===== */
footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0 28px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  font-size: 0.84rem;
}

.footer-links a { color: var(--white50); }
.footer-links a:hover { color: var(--gold-bright); }

.footer-copy { color: var(--white50); font-size: 0.8rem; line-height: 1.6; }

/* ===== RESPONSIVE ===== */
@media (max-width: 760px) {
  .related-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 14px; }
  .nav-logo .brand-tag { display: none; }
  .article-title { font-size: clamp(1.7rem, 7vw, 2.4rem); }
  .age-table { font-size: 0.86rem; }
  .age-table th, .age-table td { padding: 10px 11px; }
}