:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --muted: #5a5a5a;
  --border: #e2e2e2;
  --accent: #0f6b4c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

header .brand {
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
}

header .brand img {
  height: 42px;
  width: auto;
  display: block;
}

nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 1.5rem;
  font-size: 0.95rem;
}

nav a:first-child { margin-left: 0; }

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

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

h1 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.15rem;
  margin-top: 2.25rem;
  margin-bottom: 0.5rem;
}

p { color: var(--text); }

.muted { color: var(--muted); font-size: 0.95rem; }

footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

ul { padding-left: 1.25rem; }
li { margin-bottom: 0.4rem; }