:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --text: #101828;
  --muted: #475467;
  --border: #d0d5dd;
  --primary: #1d2939;
  --accent: #e4e7ec;
  --highlight: #0f172a;
  --surface: #ffffff;
}

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

body {
  font-family: "Inter", "Segoe UI", -apple-system, system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

.container {
  width: min(1100px, 90%);
  margin: 0 auto;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  gap: 1rem;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.hero {
  padding: 4rem 0 3rem;
}

.hero-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 3vw, 3.5rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: 1px solid var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
}

.btn.primary:hover {
  background: var(--highlight);
}

.btn.ghost {
  color: var(--primary);
  background: transparent;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 1.5rem;
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
}

.hero-card h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.hero-card ul {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  color: var(--muted);
}

.section {
  padding: 3.5rem 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2rem;
}

.section-heading h2 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.section-heading p {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  min-height: 180px;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--muted);
}

.accent {
  background: var(--surface);
}

.timeline {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.timeline h3 {
  margin-bottom: 0.5rem;
}

.timeline p {
  color: var(--muted);
}

.subtle {
  background: #f0f2f5;
}

.about {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: center;
}

.about-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 1.25rem;
  border: 1px solid var(--border);
}

.about-card ul {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  color: var(--muted);
}

.cta {
  background: var(--primary);
  color: #fff;
}

.cta .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  align-items: center;
}

.cta p {
  color: #d0d5dd;
}

.cta .btn.primary {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

.cta .btn.primary:hover {
  background: #e4e7ec;
}

.small {
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--muted);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 2.5rem;
  }
}