/* gym-calorie.microfund.co.jp — skeleton stylesheet */
:root {
  --bg: #0b0f14;
  --fg: #e6edf3;
  --muted: #8b949e;
  --accent: #39d353;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #30363d;
}

header h1 { margin: 0 0 0.5rem; font-size: 1.5rem; }

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover { color: var(--accent); }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}

section {
  margin-bottom: 3rem;
}

h2 {
  border-bottom: 1px solid #30363d;
  padding-bottom: 0.5rem;
}

footer {
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid #30363d;
}