/* Dark Mode Styles */
:root {
  --bg-color: #ffffff;
  --text-color: #222222;
  --header-bg: #f5f5f5;
  --link-color: #267CB9;
  --link-hover: #069;
  --border-color: #e5e5e5;
  --code-bg: #f3f3f3;
  --footer-text: #666;
}

[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --text-color: #e0e0e0;
  --header-bg: #252525;
  --link-color: #58a6ff;
  --link-hover: #79c0ff;
  --border-color: #3a3a3a;
  --code-bg: #2d2d2d;
  --footer-text: #999;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.wrapper header {
  background-color: var(--header-bg);
  transition: background-color 0.3s ease;
}

a {
  color: var(--link-color);
  transition: color 0.3s ease;
}

a:hover, a:focus {
  color: var(--link-hover);
}

code, pre {
  background-color: var(--code-bg);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

blockquote {
  border-left-color: var(--border-color);
  color: var(--footer-text);
}

footer {
  color: var(--footer-text);
}

hr {
  border-color: var(--border-color);
}

/* Dark Mode Toggle Button */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background-color: var(--header-bg);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.theme-toggle:active {
  transform: scale(0.95);
}

[data-theme="dark"] .theme-toggle {
  box-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .theme-toggle:hover {
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

/* Responsive adjustments */
@media print, screen and (max-width: 960px) {
  .theme-toggle {
    top: 10px;
    right: 10px;
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
}

/* Additional dark mode refinements */
[data-theme="dark"] h1, 
[data-theme="dark"] h2, 
[data-theme="dark"] h3, 
[data-theme="dark"] h4, 
[data-theme="dark"] h5, 
[data-theme="dark"] h6 {
  color: #f0f0f0;
}

[data-theme="dark"] strong {
  color: #ffffff;
}

[data-theme="dark"] table {
  border-color: var(--border-color);
}

[data-theme="dark"] th {
  background-color: #2d2d2d;
  color: #f0f0f0;
}

[data-theme="dark"] tr:nth-child(even) {
  background-color: #252525;
}

[data-theme="dark"] img {
  opacity: 0.9;
}