:root {
  --sky: #f5f7fb;
  --ink: #142131;
  --ink-soft: #4d647d;
  --line: #dfeaf4;
  --brand: #1f8577;
  --brand-deep: #0d3d52;
  --gold: #f4b942;
  --gold-soft: #f8ebc9;
  --card: #ffffff;
  --shadow: rgba(16, 36, 52, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "IBM Plex Sans", Arial, sans-serif;
  background: var(--sky);
  color: var(--ink);
  line-height: 1.7;
}
img { max-width: 100%; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: "Fraunces", Georgia, serif; margin-top: 0; }
p { margin: 0 0 1rem; }
.wrap { width: min(1100px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(13, 26, 35, 0.96);
  backdrop-filter: blur(8px);
}
.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
}
.brand svg { display: block; }
.primary-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}
.primary-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 0.96rem;
}
.primary-nav a.active { color: #fff; font-weight: 700; }
.lang-switch { display: flex; gap: 8px; margin-left: 8px; }
.lang-switch a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.8);
  font-size: 0.75rem;
}
.lang-switch a.active { background: rgba(255,255,255,0.1); color: #fff; }
.nav-toggle { display: none; }

.hero {
  padding: 72px 0 42px;
  background: linear-gradient(180deg, #eef6f5 0%, #f8f9fb 100%);
}
.compact-hero { padding: 56px 0 22px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--brand-deep);
}
.eyebrow.small { font-size: 0.7rem; }
.hero h1, .compact-hero h1 {
  font-size: clamp(2.4rem, 4vw, 4.4rem);
  line-height: 1.08;
  margin-bottom: 14px;
}
.lede { font-size: 1.08rem; color: var(--ink-soft); max-width: 62ch; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 22px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.9rem 1.4rem;
  font-weight: 700;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-gold { background: var(--gold); color: var(--ink); }
.btn-outline {
  background: #fff;
  border: 1px solid rgba(20,33,49,0.18);
  color: var(--ink);
}
.btn-teal { background: var(--brand); color: #fff; }
.hero-panel { display: flex; justify-content: center; }
.hero-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px 22px;
  box-shadow: 0 20px 42px var(--shadow);
  width: min(100%, 420px);
}
.hero-card ul { margin: 0; padding-left: 18px; color: var(--ink-soft); }

.section-soft { background: #edf5f4; }
section { padding: 28px 0 42px; }
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}
.section-head h2 { font-size: clamp(2rem, 3vw, 2.8rem); margin: 0; }
.section-head p { max-width: 640px; color: var(--ink-soft); margin: 0; }

.feature-grid, .stack-grid, .dual-grid, .pricing-grid, .article-grid, .opportunity-grid { display: grid; gap: 18px; }
.feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stack-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.dual-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pricing-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.opportunity-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.feature-card, .step-box, .info-panel, .price-card, .prose, .opportunity-card, .article-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 12px 24px rgba(16, 36, 52, 0.03);
}
.feature-card h3, .step-box h3, .info-panel h3, .opportunity-card h3, .article-card h3 { margin-bottom: 10px; }
.feature-card p, .step-box p, .info-panel p, .price-card p, .prose p, .prose li, .opportunity-card p, .article-card p { color: var(--ink-soft); }
.opportunity-head { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.opportunity-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #eef8f6;
  color: var(--brand-deep);
  padding: 5px 10px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.opportunity-tag.soft { background: #fdf4d6; }
.meta { font-size: 0.9rem; color: var(--ink-soft); }
.chip-row, .filter-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-row span {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--sky);
  border: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--ink);
}
.filter-note { color: var(--ink-soft); margin: 0 0 14px; }
.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  font-weight: 600;
}
.filter-chip.active { background: var(--brand-deep); border-color: var(--brand-deep); color: white; }
.step-box span {
  display: inline-block;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gold-soft);
  color: var(--brand-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 10px;
}

.tight { padding-top: 12px; }
.course-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px 26px;
}
.course-callout p { margin: 0; color: var(--ink-soft); }

.price-card {
  text-align: center;
}
.price-card h3 { margin-bottom: 14px; }
.price { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; }
.price span { font-size: 1rem; }
.price-card ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  color: var(--ink-soft);
}
.price-card ul li + li { margin-top: 8px; }
.was {
  text-decoration: line-through;
  color: var(--ink-soft);
  margin-right: 10px;
}
.highlight-card { border-color: rgba(244,185,66,0.5); background: linear-gradient(180deg, #fffaf0, #fff); }

.prose {
  max-width: 820px;
  margin: 0 auto;
}
.prose h2 { font-size: clamp(1.8rem, 2vw, 2.3rem); margin-top: 24px; }
.prose ul, .prose ol { padding-left: 20px; }

.site-footer {
  background: #0d1b2b;
  color: rgba(255,255,255,0.8);
  padding: 42px 0 18px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 22px;
  margin-bottom: 18px;
}
.foot-grid h4 { color: #fff; margin-bottom: 12px; }
.foot-grid ul { list-style: none; padding: 0; margin: 0; }
.foot-grid li + li { margin-top: 8px; }
.foot-grid a, .foot-grid p { color: rgba(255,255,255,0.8); }
.footer-brand { margin-bottom: 10px; }
.foot-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

@media (max-width: 900px) {
  .hero-grid, .feature-grid, .stack-grid, .dual-grid, .pricing-grid, .article-grid, .opportunity-grid, .foot-grid { grid-template-columns: 1fr; }
  .primary-nav {
    position: absolute;
    top: 78px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 18px 40px rgba(16,36,52,0.12);
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { color: var(--ink); }
  .nav-toggle {
    display: inline-flex;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.06);
    color: #fff;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
  }
  .course-callout { flex-direction: column; align-items: flex-start; }
}