article {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl);
}

#article-hero {
  margin: calc(-1 * var(--spacing-xl)) calc(-1 * var(--spacing-xl)) var(--spacing-xl);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
  max-height: 400px;
}

#article-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

#article-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

article h1 {
  font-size: 2rem;
  margin: var(--spacing-lg) 0;
  line-height: 1.3;
}

#article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  margin: var(--spacing-xl) 0;
}

#article-body h2,
#article-body h3 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

#article-body h2 {
  font-size: 1.5rem;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--spacing-sm);
}

#article-body h3 {
  font-size: 1.2rem;
}

#article-body p {
  margin: var(--spacing-lg) 0;
}

#article-body ul,
#article-body ol {
  margin: var(--spacing-lg) 0;
  padding-left: 2rem;
}

#article-body li {
  margin: var(--spacing-sm) 0;
}

#article-body strong,
#article-body b {
  color: var(--color-primary);
  font-weight: 600;
}

#article-body code {
  background-color: var(--color-bg-alt);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.9em;
  color: #c7254e;
}

#article-body pre {
  background-color: var(--color-bg-alt);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  border-left: 4px solid var(--color-primary);
}

#article-body pre code {
  background: none;
  padding: 0;
  color: inherit;
}

#article-body .article-figure {
  margin: var(--spacing-xl) 0;
  text-align: center;
}

#article-body .article-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
  margin: 0 auto;
}

#article-body .article-figure figcaption {
  margin-top: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* Admonition blocks (:::note, :::tip, :::warning, etc.) */
#article-body .admonition {
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius-md);
  border-left: 4px solid;
  padding: var(--spacing-md) var(--spacing-lg);
}

#article-body .admonition-title {
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--spacing-sm);
}

#article-body .admonition-body {
  font-size: 0.95rem;
  line-height: 1.7;
}

#article-body .admonition-note {
  background-color: #e8f4fd;
  border-color: #3498db;
  color: #1a5276;
}
#article-body .admonition-note .admonition-title { color: #2980b9; }

#article-body .admonition-tip {
  background-color: #eafaf1;
  border-color: #2ecc71;
  color: #1e8449;
}
#article-body .admonition-tip .admonition-title { color: #27ae60; }

#article-body .admonition-info {
  background-color: #eaf4fb;
  border-color: #5dade2;
  color: #154360;
}
#article-body .admonition-info .admonition-title { color: #2e86c1; }

#article-body .admonition-warning {
  background-color: #fef9e7;
  border-color: #f39c12;
  color: #7d6608;
}
#article-body .admonition-warning .admonition-title { color: #d68910; }

#article-body .admonition-danger {
  background-color: #fdedec;
  border-color: #e74c3c;
  color: #922b21;
}
#article-body .admonition-danger .admonition-title { color: #c0392b; }

#article-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--spacing-lg);
  margin-left: 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

#article-footer {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

#source-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: background-color 0.2s ease;
}

#source-link:hover {
  background-color: var(--color-primary-dark);
}

.article-tags {
  display: flex;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Back link */
header a {
  display: inline-block;
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.2s ease;
}

header a:hover {
  opacity: 0.7;
}

@media (max-width: 640px) {
  article {
    padding: var(--spacing-lg);
  }

  article h1 {
    font-size: 1.5rem;
  }

  #article-body {
    font-size: 1rem;
  }

  #article-body h2 {
    font-size: 1.3rem;
  }

  #article-body h3 {
    font-size: 1.1rem;
  }
}