body {
  margin: 0;
  padding: 0;
  background: #0b1120;
  color: #e5e7eb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

.container {
  max-width: 900px;
  margin: 40px auto;
  padding: 32px;
  background: rgba(15, 23, 42, 0.95);
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.9);
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.5);
  border-radius: 999px;
  color: #7dd3fc;
  font-size: 12px;
  margin-bottom: 20px;
}

h1 {
  font-size: 26px;
  margin-bottom: 12px;
}

h2 {
  font-size: 20px;
  margin-top: 28px;
  margin-bottom: 8px;
}

p, li {
  font-size: 15px;
  line-height: 1.8;
}

ul {
  padding-left: 20px;
  margin-bottom: 12px;
}

.intro {
  margin-bottom: 20px;
  color: #cbd5f5;
}

.code {
  background: rgba(15, 23, 42, 0.85);
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  font-size: 13px;
  color: #7dd3fc;
}