:root {
  --primary: #2d6cdf;
  --accent: #f5f7fa;
  --text: #222;
  --radius: 12px;
  --max-width: 900px;
}

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

body {
  font-family: 'Inter', Arial, sans-serif;
  background: var(--accent);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  padding: 1.5rem 0;
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary);
  letter-spacing: 1px;
  text-decoration: none;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

nav a.active,
nav a:hover {
  color: var(--primary);
}

main {
  flex: 1;
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 0 1rem;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  text-align: center;
  margin-top: 3rem;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
}

.hero p {
  font-size: 1.2rem;
  color: #555;
  margin-bottom: 1.5rem;
}

.cta-btn {
  background: var(--primary);
  color: #fff;
  padding: 0.9rem 2.2rem;
  border: none;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  text-decoration: none;
  display: inline-block;
}

.cta-btn:hover {
  background: #174ea6;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(44, 108, 223, 0.06);
  padding: 2rem 1.2rem;
  text-align: center;
}

.feature-card h3 {
  margin-bottom: 0.7rem;
  color: var(--primary);
}

section {
  margin-bottom: 2.5rem;
}

.faq-list {
  max-width: 700px;
  margin: 2rem auto;
}

.faq-item {
  margin-bottom: 1.5rem;
}

.faq-item h4 {
  color: var(--primary);
  margin-bottom: 0.3rem;
}

footer {
  background: #fff;
  border-top: 1px solid #e5e7eb;
  padding: 1.2rem 0;
  text-align: center;
  font-size: 0.97rem;
  color: #888;
  margin-top: 2rem;
}

@media (max-width: 700px) {
  .hero h1 {
    font-size: 2rem;
  }
  .features {
    grid-template-columns: 1fr;
  }
  nav ul {
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  nav {
    flex-direction: column;
    gap: 1rem;
  }
  main {
    margin: 1rem 0;
    padding: 0 0.5rem;
  }
}