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

:root {
  --primary: #3b82f6;
  --secondary: #60a5fa;
  --accent: #1e40af;
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-card: #111111;
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --border: #1f2937;
  --gradient-1: linear-gradient(135deg, #1e3a8a, #2563eb, #3b82f6);
  --gradient-2: linear-gradient(135deg, #3b82f6, #60a5fa);
  --shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
  --shadow-hover: 0 16px 64px rgba(59, 130, 246, 0.25);
  --code-bg: #0d1117;
  --code-border: #1e3a8a;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: "Inter", sans-serif;
  line-height: 1.8;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  padding: 4rem 2rem 2rem;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
}

.back-link:hover {
  transform: translateX(-5px);
  color: var(--primary);
}

.category-badge {
  display: inline-block;
  background: var(--gradient-2);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.meta-info {
  display: flex;
  justify-content: center;
  gap: 2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

article {
  margin-top: 3rem;
  padding: 2rem 0;
}

h2 {
  font-size: 1.8rem;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary);
}

h3 {
  font-size: 1.4rem;
  color: var(--secondary);
  margin: 2rem 0 1rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

ul, ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
  color: var(--text-primary);
}

li {
  margin-bottom: 0.5rem;
}

strong {
  color: var(--primary);
  font-weight: 600;
}

code {
  font-family: "Fira Code", monospace;
  background: var(--code-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--secondary);
  border: 1px solid var(--code-border);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  padding: 1.5rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

pre code {
  background: none;
  padding: 0;
  border: none;
  display: block;
  line-height: 1.6;
  color: var(--text-primary);
}

.info-box {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(30, 64, 175, 0.1));
  border-left: 4px solid var(--primary);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 8px;
}

.info-box h4 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.warning-box {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(30, 64, 175, 0.15));
  border-left: 4px solid var(--secondary);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 8px;
}

.warning-box h4 {
  color: var(--secondary);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.table-container {
  overflow-x: auto;
  margin: 2rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 8px;
  overflow: hidden;
}

th {
  background: var(--gradient-1);
  color: white;
  padding: 1rem;
  text-align: left;
  font-weight: 600;
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover {
  background: rgba(59, 130, 246, 0.05);
}

.code-header {
  background: var(--gradient-1);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 8px 8px 0 0;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: -1px;
}

.code-block {
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .container {
    padding: 1rem;
  }

  pre {
    padding: 1rem;
    font-size: 0.85rem;
  }
}