* {
  box-sizing: border-box;
}

html {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  color: #1f2937;
  background: #ffffff;
}

.container {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  padding: 20px 0;
  border-bottom: 1px solid #e5e7eb;
}

.brand {
  color: inherit;
  text-decoration: none;
  font-weight: 700;
}

.hero {
  padding: 80px 0;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 6vw, 4rem);
}

.hero p {
  margin: 0;
  font-size: 1.2rem;
}

.content-section {
  padding: 48px 0;
}

.site-footer {
  margin-top: 48px;
  padding: 28px 0;
  border-top: 1px solid #e5e7eb;
  font-size: 0.9rem;
}