* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #f7f7f7;
}

.container {
  width: min(1000px, 90%);
  margin: 0 auto;
}

.site-header {
  background: #111;
  color: #fff;
  padding: 16px 0;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.logo {
  margin: 0;
  font-size: 1.4rem;
}

.nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 16px;
}

.nav a:hover {
  text-decoration: underline;
}

.hero {
  padding: 80px 0;
  background: #fff;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.hero p {
  max-width: 650px;
  margin: 0 auto 24px;
}

.button {
  display: inline-block;
  padding: 12px 20px;
  background: #111;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
}

.button:hover {
  opacity: 0.9;
}

.section {
  padding: 60px 0;
}

.section.alt {
  background: #ececec;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.site-footer {
  background: #111;
  color: #fff;
  text-align: center;
  padding: 20px 0;
}