:root {
  --bg: #0b1020;
  --panel: #111832;
  --card: #ffffff;
  --muted: #64748b;
  --text: #172033;
  --accent: #5b7cfa;
  --accent-2: #8b5cf6;
  --line: #e5e7eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: #f4f7fb;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  background: radial-gradient(circle at top left, #27316f 0, var(--bg) 42%, #090d18 100%);
  color: #fff;
  padding: 28px 20px 64px;
}

.nav,
.hero,
.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
  color: #cbd5e1;
}

.hero {
  padding-top: 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 46px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.5rem, 5vw, 5.2rem);
  line-height: 0.95;
  letter-spacing: -0.07em;
}

.hero p {
  margin: 0;
  max-width: 620px;
  color: #d9e2f2;
  font-size: 1.12rem;
}

.hero-card {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
}

.hero-card strong {
  display: block;
  font-size: 1.4rem;
  line-height: 1.2;
}

.hero-card span {
  display: block;
  margin-top: 10px;
  color: #cbd5e1;
}

.mobile-ad-slot {
  width: min(640px, 100%);
  margin: -40px auto 34px;
  display: block;
  text-align: center;
}

.section-title {
  margin: 0 0 18px;
  font-size: 1.9rem;
  letter-spacing: -0.04em;
}

.featured-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.06);
}

.card:hover {
  transform: translateY(-2px);
  transition: transform 160ms ease;
}

.tag {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 5px 10px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card h2,
.card h3 {
  margin: 0 0 10px;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.card p,
.meta,
.article-body p {
  color: var(--muted);
}

.container {
  padding: 34px 0 64px;
}

.categories {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 42px;
}

.category-pill {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: #334155;
  font-weight: 700;
}

.article-page {
  background: #f8fafc;
}

.article-hero {
  padding: 52px 20px 38px;
  background: linear-gradient(135deg, #0b1020, #23318a);
  color: #fff;
}

.article-hero .inner,
.article-body {
  width: min(820px, calc(100% - 32px));
  margin: 0 auto;
}

.back-link {
  display: inline-block;
  margin-bottom: 28px;
  color: #cbd5e1;
  font-weight: 700;
}

.article-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.07em;
}

.article-body {
  padding: 42px 0 72px;
  font-size: 1.08rem;
}

.article-body h2 {
  margin-top: 34px;
  letter-spacing: -0.03em;
}

.site-footer {
  padding: 28px 20px;
  text-align: center;
  color: #94a3b8;
  background: #080c16;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 44px;
  }

  .featured-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .mobile-ad-slot {
    width: min(640px, calc(100% - 24px));
    margin-top: -28px;
  }
}