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

:root {
  --bg: #f6f8fa;
  --bg-card: #ffffff;
  --text: #1f2328;
  --text-mid: #59636e;
  --text-light: #848d97;
  --accent: #0969da;
  --border: #d1d9e0;
  --code-bg: #0d1117;
  --code-text: #e6edf3;
  --toolbar-bg: #161b22;
  --green: #1a7f37;
  --badge-bg: #ddf4ff;
  --badge-text: #0969da;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo span { color: var(--accent); }

.nav {
  display: flex;
  gap: 20px;
}
.nav a {
  color: var(--text-mid);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
}
.nav a:hover { color: var(--text); }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.snippet-meta {
  margin-bottom: 20px;
}

.snippet-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.snippet-title-row h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-family: 'JetBrains Mono', monospace;
}

.lang-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--badge-bg);
  color: var(--badge-text);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.snippet-desc {
  font-size: 15px;
  color: var(--text-mid);
  margin-bottom: 12px;
}

.meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-light);
}

.author {
  display: flex;
  align-items: center;
  gap: 6px;
}

.avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 10px;
}

.meta-row strong { color: var(--text); font-weight: 600; }
.sep { color: var(--border); }

.code-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.code-toolbar {
  background: var(--toolbar-bg);
  padding: 8px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.dot.green { background: #3fb950; }

.filename {
  font-size: 12px;
  font-weight: 500;
  color: #e6edf3;
  font-family: 'JetBrains Mono', monospace;
}

.line-count {
  font-size: 11px;
  color: #848d97;
}

.toolbar-right {
  display: flex;
  gap: 6px;
}

.btn-raw, .btn-copy {
  background: transparent;
  border: 1px solid #30363d;
  color: #c9d1d9;
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: all 0.15s;
}
.btn-raw:hover, .btn-copy:hover {
  background: #30363d;
  color: #e6edf3;
}

.code-scroll {
  overflow-x: auto;
}

.code-pre {
  background: var(--code-bg);
  padding: 16px 20px;
  margin: 0;
}

.code-content {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 13px;
  color: var(--code-text);
  line-height: 1.55;
  white-space: pre;
}

.snippet-footer {
  margin-top: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.usage-hint {
  font-size: 13px;
  color: var(--text-mid);
}
.usage-hint code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent);
}

.footer-actions {
  display: flex;
  gap: 8px;
}

.btn-star, .btn-fork {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-mid);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
}
.btn-star:hover, .btn-fork:hover {
  background: var(--bg-card);
  border-color: var(--text-light);
  color: var(--text);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
  font-size: 12px;
  color: var(--text-light);
}
.footer-inner a {
  color: var(--text-light);
  text-decoration: none;
}
.footer-inner a:hover { color: var(--text); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 640px) {
  .snippet-title-row h1 { font-size: 18px; }
  .snippet-footer { flex-direction: column; gap: 10px; align-items: flex-start; }
  .nav { display: none; }
}