:root {
  --article-bg: #0a0e27;
  --article-card-bg: rgba(15, 19, 51, 0.95);
  --article-text: #e5e7eb;
  --article-heading: #22c55e;
  --article-link: #22c55e;
  --article-border: rgba(34, 197, 94, 0.15);
  --article-code-bg: rgba(34, 197, 94, 0.05);
}

[data-reader-mode="light"] {
  --article-bg: #f9fafb;
  --article-card-bg: #ffffff;
  --article-text: #1f2937;
  --article-heading: #16a34a;
  --article-link: #16a34a;
  --article-border: #e5e7eb;
  --article-code-bg: #f3f4f6;
}

.article-page {
  min-height: 100vh;
  padding: 5rem 0 3rem;
  background: var(--article-bg);
  transition: background 0.3s ease;
}

.article-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.reader-mode-toggle {
  position: fixed;
  top: 120px;
  right: 20px;
  z-index: 999;
  background: var(--article-card-bg);
  border: 1px solid var(--article-border);
  border-radius: 24px;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.reader-mode-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.reader-mode-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--article-heading);
}

.reader-mode-toggle span {
  font-size: 0.875rem;
  color: var(--article-text);
  font-weight: 500;
}

.article-content {
  background: var(--article-card-bg);
  border: 1px solid var(--article-border);
  border-radius: 12px;
  padding: 2.5rem;
  transition: all 0.3s ease;
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--article-border);
}

.article-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  color: var(--article-heading);
  line-height: 1.3;
  margin: 0 0 1rem 0;
}

.article-meta {
  color: var(--article-text);
  opacity: 0.7;
  font-size: 0.875rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.article-body {
  color: var(--article-text);
  font-size: 1.0625rem;
  line-height: 1.75;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-reader-mode="light"] .article-body [style*="background"] {
  background: var(--article-code-bg) !important;
  color: var(--article-text) !important;
}

[data-reader-mode="light"] .article-body [style*="color"] {
  color: var(--article-text) !important;
}

.article-body h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--article-heading);
  margin: 2.5rem 0 1.25rem 0;
  line-height: 1.3;
}

.article-body h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--article-heading);
  margin: 2rem 0 1rem 0;
  line-height: 1.4;
}

.article-body h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--article-heading);
  margin: 1.75rem 0 0.875rem 0;
}

.article-body p {
  margin-bottom: 1.25rem;
}

.article-body strong {
  font-weight: 600;
  color: var(--article-heading);
}

.article-body em {
  font-style: italic;
}

.article-body a {
  color: var(--article-link);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity 0.2s ease;
}

.article-body a:hover {
  opacity: 0.8;
}

.article-body ul,
.article-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.75rem;
}

.article-body li {
  margin-bottom: 0.5rem;
  line-height: 1.75;
}

.article-body ul li {
  list-style-type: disc;
}

.article-body ol li {
  list-style-type: decimal;
}

.table-container {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: 8px;
  border: 1px solid var(--article-border);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.article-body th,
.article-body td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--article-border);
}

.article-body th {
  background: var(--article-code-bg);
  font-weight: 600;
  color: var(--article-heading);
}

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

.article-body code {
  background: var(--article-code-bg);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: 'Courier New', Courier, monospace;
}

.article-body pre {
  background: var(--article-code-bg);
  padding: 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.article-body pre code {
  background: none;
  padding: 0;
}

.article-body blockquote {
  border-left: 4px solid var(--article-link);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  font-style: italic;
  opacity: 0.9;
}

.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
}

.article-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--article-border);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.article-footer .btn {
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  display: inline-block;
}

.article-footer .btn-secondary {
  background: transparent;
  border: 2px solid var(--article-heading);
  color: var(--article-heading);
}

.article-footer .btn-secondary:hover {
  background: var(--article-heading);
  color: var(--article-bg);
}

.article-footer .btn-primary {
  background: var(--article-heading);
  color: var(--article-bg);
  border: 2px solid var(--article-heading);
}

.article-footer .btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.article-footer .btn-primary:focus {
  outline: 2px solid var(--article-heading);
  outline-offset: 2px;
}

.article-footer .btn-primary:focus-visible {
  outline: 2px solid var(--article-heading);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .article-page {
    padding: 4rem 0 2rem;
  }
  
  .article-container {
    padding: 0 1rem;
  }
  
  .article-content {
    padding: 1.5rem;
  }
  
  .article-title {
    font-size: 1.75rem;
  }
  
  .article-body {
    font-size: 1rem;
  }
  
  .article-body h2 {
    font-size: 1.5rem;
  }
  
  .article-body h3 {
    font-size: 1.25rem;
  }
  
  .reader-mode-toggle {
    top: 80px;
    right: 10px;
    padding: 0.4rem 0.75rem;
  }
  
  .reader-mode-toggle span {
    display: none;
  }
  
  .article-footer {
    flex-direction: column;
  }
  
  .article-footer .btn {
    width: 100%;
    text-align: center;
  }
}

@media print {
  .reader-mode-toggle,
  .article-footer {
    display: none !important;
  }
  
  .article-page {
    background: white;
  }
  
  .article-content {
    border: none;
    box-shadow: none;
  }
  
  .article-body {
    color: black;
  }
}

@media (prefers-contrast: high) {
  :root {
    --article-border: rgba(34, 197, 94, 0.5);
  }
  
  [data-reader-mode="light"] {
    --article-border: #000;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.01ms !important;
  }
}

.article-disclaimer {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  margin: 1.6rem 0 0;
  padding: 0.85rem 1.05rem;
  border-radius: 10px;
  background: var(--article-code-bg);
  border: 1px solid var(--article-border);
}
.article-disclaimer-icon {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--article-heading);
}
.article-disclaimer p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--article-text);
  opacity: 0.82;
}