:root {
  --bg: #faf8f5;
  --surface: #ffffff;
  --text: #1e242b;
  --muted: #52606d;
  --accent: #b84a27;
  --accent-hover: #96391b;
  --border: #e2ddd5;
  --max-width: 760px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.65;
  padding: 0 1.25rem;
}

header, main, footer {
  max-width: var(--max-width);
  margin: 0 auto;
}

header {
  padding: 2rem 0 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  font-size: 1.05rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.25rem;
  font-size: 0.95rem;
}

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

main {
  padding: 3rem 0 4rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem;
  margin-top: 1.5rem;
}

h1 {
  font-size: 2rem;
  line-height: 1.25;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
}

h3 {
  font-size: 1.1rem;
  margin: 1.25rem 0 0.5rem;
}

p, ul {
  margin-bottom: 1rem;
}

ul {
  padding-left: 1.25rem;
}

.btn {
  display: inline-block;
  background-color: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  padding: 0.85rem 1.5rem;
  border-radius: 4px;
  margin-top: 0.5rem;
}

.btn:hover {
  background-color: var(--accent-hover);
}

.note-box {
  background: #f3efe8;
  border-left: 4px solid var(--accent);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

footer a {
  color: var(--muted);
  text-decoration: underline;
}