:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #c9d1d9;
  --heading: #f0f6fc;
  --primary: #238636;
  --primary-hover: #2ea043;
  --accent: #58a6ff;
  --muted: #8b949e;
  --card-bg: #161b22;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding: 0;
}
.container { max-width: 960px; margin: 0 auto; padding: 24px 20px; }
header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky; top: 0; z-index: 100;
}
.nav-bar {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 960px; margin: 0 auto; padding: 16px 20px;
}
.brand { font-size: 1.25rem; font-weight: 700; color: var(--heading); text-decoration: none; }
.nav-links { display: flex; gap: 16px; align-items: center; }
.nav-links a { color: var(--text); text-decoration: none; font-size: 0.95rem; }
.nav-links a:hover { color: var(--accent); }
.lang-badge {
  background: var(--border); padding: 4px 10px; border-radius: 12px; font-size: 0.8rem;
  color: var(--heading); text-decoration: none;
}
.hero { padding: 48px 0 32px; text-align: center; }
.hero h1 { font-size: 2.3rem; color: var(--heading); margin-bottom: 16px; line-height: 1.25; }
.hero p { font-size: 1.1rem; color: var(--muted); max-width: 720px; margin: 0 auto 24px; }
.btn {
  display: inline-block; background: var(--primary); color: #fff;
  padding: 10px 20px; border-radius: 6px; font-weight: 600; text-decoration: none;
  transition: background 0.2s; font-size: 0.95rem;
}
.btn:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--border); color: var(--heading); margin-left: 12px; }
.btn-secondary:hover { background: #3c444d; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin: 32px 0; }
.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 24px; display: flex; flex-direction: column; justify-content: space-between;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card h3 { color: var(--heading); font-size: 1.25rem; margin-bottom: 8px; line-height: 1.35; }
.card h3 a { color: inherit; text-decoration: none; }
.card h3 a:hover { color: var(--accent); }
.card p { color: var(--muted); font-size: 0.95rem; margin-bottom: 16px; }
.price { font-size: 1.35rem; font-weight: 700; color: var(--heading); margin-bottom: 16px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; margin-bottom: 12px; }
.badge-green { background: rgba(35, 134, 54, 0.2); color: #3fb950; border: 1px solid rgba(35, 134, 54, 0.4); }
.badge-blue { background: rgba(88, 166, 255, 0.2); color: #58a6ff; border: 1px solid rgba(88, 166, 255, 0.4); }
.badge-purple { background: rgba(163, 113, 247, 0.2); color: #bc8cff; border: 1px solid rgba(163, 113, 247, 0.4); }
.section-title {
  margin: 48px 0 16px; padding-bottom: 10px; border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 8px;
}
.section-title h2 { font-size: 1.5rem; color: var(--heading); }
.section-title a { color: var(--accent); text-decoration: none; font-size: 0.9rem; }
.sublink-box {
  background: #111822; border: 1px solid rgba(88, 166, 255, 0.25); border-radius: 8px;
  padding: 24px; margin: 48px 0 24px;
}
.sublink-box h3 { color: var(--heading); font-size: 1.25rem; margin-bottom: 8px; }
.sublink-box p { color: var(--muted); font-size: 0.95rem; margin-bottom: 16px; }
article.content { max-width: 760px; margin: 40px auto; }
article.content h1 { font-size: 2.2rem; color: var(--heading); margin-bottom: 12px; line-height: 1.25; }
article.content .meta { color: var(--muted); font-size: 0.85rem; margin-bottom: 32px; border-bottom: 1px solid var(--border); padding-bottom: 16px; }
article.content h2 { font-size: 1.5rem; color: var(--heading); margin: 32px 0 12px; }
article.content h3 { font-size: 1.2rem; color: var(--heading); margin: 24px 0 8px; }
article.content p { margin-bottom: 16px; }
article.content ul { margin: 0 0 16px 24px; }
article.content li { margin-bottom: 8px; }
footer {
  border-top: 1px solid var(--border); padding: 32px 20px; text-align: center;
  color: var(--muted); font-size: 0.85rem; margin-top: 60px;
}