:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --border-subtle: #e5e7eb;
  --accent: #0f172a;
  --radius: 12px;
  --shadow-soft: 0 8px 30px rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.65;
}

header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-primary);
}

.logo img {
  height: 34px;
}

nav a {
  margin-left: 2rem;
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

nav a:hover {
  color: var(--text-primary);
}

.hero {
  padding: 6rem 1.5rem 5rem;
  background: linear-gradient(to bottom, #f9fafb, #ffffff);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.hero h1 {
  max-width: 900px;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero p {
  max-width: 640px;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.cta {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.9rem 1.4rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 500;
  text-decoration: none;
}

.section {
  padding: 5rem 1.5rem;
}

.section.alt {
  background: var(--bg-secondary);
}

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

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

.card {
  background: #fff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-soft);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

footer {
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-cta {
  background: linear-gradient(to bottom, #0f172a, #020617);
  color: #ffffff;
  padding: 4.5rem 1.5rem;
}

.footer-cta .container {
  max-width: 1200px;
  text-align: center;
}

.footer-cta h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.footer-cta p {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
  color: #cbd5f5;
}

.footer-cta .cta {
  background: #ffffff;
  color: #020617;
  font-weight: 600;
}