* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f0f0f;
  color: #e0e0e0;
  line-height: 1.7;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid #222;
  max-width: 900px;
  margin: 0 auto;
}
.logo {
  font-size: 20px;
  font-weight: 700;
  color: #6c63ff;
  text-decoration: none;
}
nav a {
  color: #888;
  text-decoration: none;
  font-size: 14px;
}
nav a:hover { color: #fff; }
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px;
}
h1 {
  font-size: 32px;
  line-height: 1.3;
  margin-bottom: 8px;
  color: #fff;
}
.subtitle {
  color: #888;
  font-size: 16px;
  margin-bottom: 32px;
}
h2 {
  font-size: 20px;
  margin: 32px 0 12px;
  color: #fff;
}
p { margin-bottom: 12px; color: #ccc; }
.prompt-box {
  background: #1a1a2e;
  border: 1px solid #333;
  border-radius: 8px;
  overflow: hidden;
  margin: 24px 0;
}
.prompt-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: #16213e;
  font-size: 13px;
  font-weight: 600;
  color: #6c63ff;
}
.prompt-header button {
  background: #6c63ff;
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  font-weight: 600;
}
.prompt-header button:hover { opacity: 0.85; }
.prompt-text {
  padding: 16px;
  white-space: pre-wrap;
  font-size: 14px;
  line-height: 1.6;
  color: #e0e0e0;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.example-box {
  background: #111;
  border-left: 3px solid #6c63ff;
  padding: 16px 20px;
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.7;
  color: #ccc;
}
ul, ol {
  padding-left: 20px;
  margin-bottom: 12px;
}
li {
  margin-bottom: 6px;
  color: #ccc;
}
.tools-section a {
  display: inline-block;
  background: #1a1a2e;
  border: 1px solid #333;
  padding: 12px 20px;
  border-radius: 8px;
  color: #6c63ff;
  text-decoration: none;
  margin: 4px 8px 4px 0;
  font-weight: 600;
  font-size: 14px;
}
.tools-section a:hover {
  border-color: #6c63ff;
  background: #16213e;
}
.related {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.related a {
  display: block;
  padding: 14px 16px;
  background: #1a1a2e;
  border: 1px solid #222;
  border-radius: 8px;
  color: #ccc;
  text-decoration: none;
  font-size: 14px;
}
.related a:hover {
  border-color: #6c63ff;
  color: #fff;
}
footer {
  text-align: center;
  padding: 40px 20px;
  color: #555;
  font-size: 13px;
  border-top: 1px solid #1a1a1a;
}
/* Index page */
.hero {
  text-align: center;
  padding: 60px 20px 40px;
}
.hero h1 { font-size: 40px; margin-bottom: 12px; }
.hero p { color: #888; font-size: 18px; }
.search-box {
  max-width: 500px;
  margin: 24px auto;
}
.search-box input {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid #333;
  border-radius: 8px;
  background: #1a1a2e;
  color: #e0e0e0;
  font-size: 16px;
}
.search-box input:focus {
  outline: none;
  border-color: #6c63ff;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 60px;
}
.card {
  background: #1a1a2e;
  border: 1px solid #222;
  border-radius: 8px;
  padding: 20px;
  text-decoration: none;
  transition: border-color 0.2s;
}
.card:hover { border-color: #6c63ff; }
.card h3 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 6px;
}
.card p {
  color: #888;
  font-size: 13px;
  margin: 0;
}
.category-tag {
  display: inline-block;
  background: #6c63ff22;
  color: #6c63ff;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 8px;
}