:root {
  color-scheme: light;
  --bg: #f7f4ec;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #667085;
  --line: #e5e0d5;
  --accent: #8b5e34;
  --accent-dark: #684322;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
}

nav {
  max-width: 920px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: var(--text);
  font-size: 20px;
  font-weight: 800;
  text-decoration: none;
}

nav div {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

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

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}

article,
.hero {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 34px;
}

h1 {
  margin-top: 0;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.15;
}

h2 {
  margin-top: 36px;
  font-size: 23px;
}

p,
li {
  font-size: 16px;
}

.meta {
  color: var(--muted);
}

a {
  color: var(--accent-dark);
}

.button {
  display: inline-block;
  margin-top: 14px;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-weight: 700;
}

.notice {
  padding: 18px;
  margin: 24px 0;
  border-left: 4px solid var(--accent);
  background: #faf8f3;
}

footer {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px 48px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  article,
  .hero {
    padding: 24px;
  }

  nav {
    align-items: flex-start;
    flex-direction: column;
  }
}