:root {
  --brand-primary: #3a5a40;
  --brand-secondary: #4a7050;
  --brand-accent: #8a9e80;
  --brand-dark: #555;
  --brand-light: #fafafa;
  --brand-muted: #999;
  --font-heading: "Inter", "Noto Sans JP", sans-serif;
  --font-body: "Inter", "Noto Sans JP", sans-serif;
}

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

html {
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--brand-dark);
  background: var(--brand-light);
  line-height: 1.9;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-weight: 300;
}

a {
  color: var(--brand-dark);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--brand-primary);
  opacity: 1;
}