:root {
  --bg-color: #ffffff;
  --text-color: #111827;
  --header-bg-color: rgba(255, 255, 255, 0.8);
  --border-color: #e5e7eb;
  --link-color: #1d4ed8;
  --link-hover-color: #3b82f6;
  --meta-color: #6b7280;
  --card-bg-color: #ffffff;
}

html[data-theme='dark'] {
  --bg-color: #0d1117;
  --text-color: #c9d1d9;
  --header-bg-color: rgba(13, 17, 23, 0.8);
  --border-color: #30363d;
  --link-color: #58a6ff;
  --link-hover-color: #96d0ff;
  --meta-color: #8b949e;
  --card-bg-color: #161b22;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

header {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background-color: var(--header-bg-color);
  border-bottom: 1px solid var(--border-color);
}

.nav-link {
  color: #22d3ee;
  transition: all 0.3s ease;
  text-shadow: 0 0 6px rgba(34, 211, 238, 0.7);
}

.nav-link:hover {
  color: #facc15;
  text-shadow: 0 0 12px rgba(250, 204, 21, 0.8);
}

.nav-active {
  color: var(--text-color);
  font-weight: 600;
}

html[data-theme='dark'] .nav-active {
  color: #f0f6fc;
}

.post-card {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
}

.post-card:hover {
  @apply shadow-lg border-blue-500/50;
  transform: translateY(-2px);
}

.post-title a {
  color: var(--text-color);
  text-decoration: none;
  transition: color 0.3s;
}

.post-title a:hover {
  color: var(--link-color);
}

.post-meta {
  color: var(--meta-color);
}

.post-excerpt {
  color: var(--text-color);
}

.read-more-btn {
  color: #f472b6;
  text-shadow: 0 0 8px rgba(244, 114, 182, 0.8);
  border-bottom: 1px solid #f472b6;
  transition: all 0.3s ease;
}

.read-more-btn:hover {
  color: #facc15;
  text-shadow: 0 0 12px rgba(250, 204, 21, 0.8);
  border-color: #facc15;
}

.content-article {
  font-family: 'Lora', serif;
  line-height: 1.8;
  font-size: 1.125rem;
}

.content-article h1, .content-article h2, .content-article h3 {
  font-family: 'Inter', sans-serif;
  color: var(--text-color);
  font-weight: 800;
}

.content-article a {
  color: var(--link-color);
  text-decoration: underline;
}

.content-article pre {
  position: relative;
  background-color: #161b22;
  border: 1px solid var(--border-color);
}

.copy-code-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background-color: #374151;
  color: #e5e7eb;
  border: 1px solid #4b5563;
  padding: 0.25rem 0.6rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.content-article pre:hover .copy-code-btn {
  opacity: 1;
}

.copy-code-btn:hover {
  background-color: #4b5563;
}

.ad-label {
  display: block;
  text-align: center;
  font-size: 0.75rem;
  color: var(--meta-color);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.category-btn {
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg-color);
  color: var(--text-color);
  transition: all 0.2s ease-in-out;
}

.category-btn:hover {
  background-color: #f472b6;
  color: white;
  border-color: #f472b6;
}

.category-btn.active {
  background-color: #d946ef;
  color: white;
  font-weight: bold;
  border-color: #d946ef;
}