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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #1a1a2e;
  line-height: 1.6;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.site-header {
  background: #ffffff;
  border-bottom: 1px solid #eaeaea;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
}

.logo span { color: #4361ee; }

nav a {
  margin-left: 24px;
  font-weight: 500;
}

nav a:hover { color: #4361ee; }

.hero {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  color: #fff;
  text-align: center;
  padding: 120px 24px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.15rem;
  color: #cfd2e3;
  margin-bottom: 32px;
}

.btn {
  display: inline-block;
  background: #4361ee;
  color: #fff;
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.2s ease;
}

.btn:hover { background: #3348c4; }

.section {
  padding: 80px 0;
}

.section.alt {
  background: #f7f8fc;
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.card {
  background: #fff;
  padding: 24px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.card h3 { margin-bottom: 8px; color: #4361ee; }

.site-footer {
  background: #1a1a2e;
  color: #cfd2e3;
  text-align: center;
  padding: 24px 0;
}