* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f6f7f8;
  color: #222;
  line-height: 1.6;
}

a {
  color: #2f6f44;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  background: #2f6f44;
  padding: 16px 24px;
}

header a {
  color: #fff;
  font-size: 20px;
  font-weight: 600;
}

main {
  max-width: 960px;
  margin: 24px auto;
  background: #fff;
  padding: 24px;
  border-radius: 6px;
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
}

h1 {
  margin-top: 0;
  font-size: 28px;
}

h2 {
  margin-top: 32px;
  font-size: 22px;
  border-bottom: 1px solid #eee;
  padding-bottom: 4px;
}

footer {
  margin-top: 40px;
  padding: 24px;
  text-align: center;
  font-size: 14px;
  color: #666;
}

/* ADS PLACEHOLDERS */
.ads {
  margin: 24px 0;
  padding: 16px;
  border: 1px dashed #ccc;
  text-align: center;
  font-size: 14px;
  color: #999;
}

/* SEARCH */
.search-box input {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

/* GRID */
.categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.category {
  border: 1px solid #e5e5e5;
  padding: 16px;
  border-radius: 4px;
  background: #fafafa;
}