@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  color-scheme: dark;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #e2e8f0;
  background: #0b1120;
  accent-color: #7c3aed;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at top, rgba(99, 102, 241, 0.14), transparent 22%),
    radial-gradient(circle at bottom right, rgba(14, 165, 233, 0.14), transparent 18%),
    #020617;
}

body {
  color: #e2e8f0;
  line-height: 1.6;
}

img,
svg {
  max-width: 100%;
  display: block;
}

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

.site-header,
.overview,
.features,
.cta-section,
.site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  padding: 3rem 0 2rem;
  text-align: center;
}

.brand-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0.65rem 1rem;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.82);
}

.brand-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  height: 3rem;
  border-radius: 999px;
  background: #7c3aed;
  color: #f8fafc;
  font-weight: 700;
}

.site-header h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.05em;
}

.subtitle {
  max-width: 720px;
  margin: 1rem auto 1.75rem;
  font-size: 1.05rem;
  color: #cbd5e1;
}

.action-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, #8b5cf6, #22d3ee);
  color: #fff;
  box-shadow: 0 16px 40px rgba(124, 58, 237, 0.25);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.overview {
  display: grid;
  gap: 2rem;
  padding-bottom: 2.5rem;
}

.overview-card {
  padding: 2.25rem;
  border-radius: 32px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.overview-card h2 {
  margin-top: 0;
  font-size: clamp(2rem, 3vw, 2.75rem);
}

.resource-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.resource-grid article,
.feature-cards article {
  padding: 1.5rem;
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.resource-grid h3,
.feature-cards h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.features {
  padding: 2rem 0;
}

.section-title {
  max-width: 660px;
  margin: 0 auto 1.75rem;
  text-align: center;
}

.section-title span {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-weight: 700;
  color: #7dd3fc;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.85rem;
}

.feature-cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.cta-section {
  display: grid;
  gap: 1.5rem;
  justify-items: center;
  text-align: center;
  padding: 2rem 0 4rem;
}

.cta-section h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.75rem);
}

.cta-section p {
  max-width: 710px;
  color: #cbd5e1;
}

.site-footer {
  padding: 1.5rem 0 3rem;
  color: #94a3b8;
  text-align: center;
}

@media (max-width: 640px) {
  .site-header {
    padding-top: 2rem;
  }

  .overview-card,
  .resource-grid article,
  .feature-cards article {
    padding: 1.5rem;
  }
}