*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family: system-ui, Arial, sans-serif;
  margin: 0;
  background: #f5f6f8;
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  display: flex;
  justify-content: space-between;
  padding: 20px 40px;
  background: #fff;
  align-items: center;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-weight: bold;
  font-size: 20px;
  color: #1a1a1a;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #333;
  transition: color 0.15s;
}

nav a:hover {
  color: #007bff;
}

a.cta {
  background: #007bff;
  color: #fff;
  padding: 8px 14px;
  border-radius: 5px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s;
}

a.cta:hover {
  background: #0069d9;
}

main {
  flex: 1;
}

.hero {
  padding: 80px 40px;
  text-align: center;
  background: #fff;
}

.hero h1 {
  font-size: 48px;
  margin: 0 0 12px;
  color: #1a1a1a;
}

.hero p {
  margin: 0 0 8px;
  color: #555;
  font-size: 18px;
}

.hero p:last-of-type {
  margin-bottom: 0;
  color: #888;
  font-size: 16px;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 18px;
  background: #007bff;
  color: #fff;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.15s, transform 0.1s;
}

.btn:hover {
  background: #0069d9;
  transform: translateY(-1px);
}

section {
  padding: 40px;
  max-width: 1000px;
  margin: auto;
}

.intro {
  background: #fff;
  margin-top: 24px;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.intro h2 {
  margin: 0 0 16px;
  font-size: 28px;
  color: #1a1a1a;
}

.intro p {
  margin: 0;
  color: #444;
}

section.cta {
  text-align: center;
  background: #fff;
  margin-top: 24px;
  margin-bottom: 40px;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

section.cta h2 {
  margin: 0 0 12px;
  font-size: 28px;
  color: #1a1a1a;
}

section.cta p {
  margin: 0;
  color: #555;
}

section.page {
  background: #fff;
  margin: 40px auto;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

section.page h1 {
  margin: 0 0 20px;
  font-size: 32px;
  color: #1a1a1a;
}

section.page p {
  margin: 0 0 16px;
  color: #444;
}

section.page p:last-child {
  margin-bottom: 0;
}

.footer {
  background: #fff;
  padding: 30px;
  text-align: center;
  border-top: 1px solid #eee;
  margin-top: auto;
}

.footer p {
  margin: 0 0 8px;
  color: #555;
}

.footer p:last-of-type {
  margin-bottom: 16px;
  color: #999;
  font-size: 14px;
}

.footer-links a {
  margin: 0 8px;
  color: #666;
  text-decoration: none;
}

.footer-links a:hover {
  color: #007bff;
}

@media (max-width: 768px) {
  .header {
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px 20px;
  }

  nav {
    order: 3;
    width: 100%;
    text-align: center;
  }

  nav a {
    margin: 0 6px;
    font-size: 14px;
  }

  .hero {
    padding: 48px 20px;
  }

  .hero h1 {
    font-size: 36px;
  }

  section {
    padding: 28px 20px;
  }

  section.page {
    margin: 24px auto;
  }
}