:root {
  --bg-color-dark: #000;
  --bg-color-light: #f5f5f5;
  --text-color-dark: #fff;
  --text-color-light: #111;
  --accent-color: #3782ab;
  --sidebar-bg-dark: #0a0a0a;
  --sidebar-bg-light: #fff;
  --code-bg-dark: #1e1e1e;
  --code-bg-light: #f0f0f0;
  --code-text-dark: #0f0;
  --code-text-light: #222;
  --border-color-dark: #111;
  --border-color-light: #ccc;
}

[data-theme="dark"] {
  --bg-color: var(--bg-color-dark);
  --text-color: var(--text-color-dark);
  --sidebar-bg: var(--sidebar-bg-dark);
  --code-bg: var(--code-bg-dark);
  --code-text: var(--code-text-dark);
  --border-color: var(--border-color-dark);
  --footer-bg: #111;
  --footer-text: #ccc;
  --background: #0a0a0a;
  --text: #eee;
}

[data-theme="light"] {
  --bg-color: var(--bg-color-light);
  --text-color: var(--text-color-light);
  --sidebar-bg: var(--sidebar-bg-light);
  --code-bg: var(--code-bg-light);
  --code-text: var(--code-text-light);
  --border-color: var(--border-color-light);
  --footer-bg: #f0f0f0;
  --footer-text: #333;
  --background: #fff;
  --text: #111;
}

body {
  margin: 0;
  font-family: "Segoe UI", sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  transition: background 0.3s, color 0.3s;
  overflow-x: hidden;
}

a {
  color: var(--accent-color);
  text-decoration: none;
}

a:hover {
  color: var(--text-color);
  background-color: rgba(0, 191, 255, 0.1);
  border-radius: 5px;
}

.topbar {
  background: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  padding: 15px 20px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  height: 60px;
}

.btn-doc {
  background: var(--accent-color);
  color: #000;
  padding: 6px 15px;
  border-radius: 20px;
  font-size: 0.9rem;
}

.navbar-brand strong {
  color: var(--text-color);
}

.topbar select {
  background: var(--sidebar-bg);
  color: var(--accent-color);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.9rem;
}

.toggle-theme {
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--accent-color);
}

.sidebar-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--accent-color);
}

.doc-layout {
  display: flex;
  margin-top: 60px;
  min-height: calc(100vh - 60px);
  overflow: hidden;
}

/* Left Sidebar */
.doc-sidebar {
  background: var(--sidebar-bg);
  padding: 30px 15px;
  width: 250px;
  height: calc(100vh - 60px);
  overflow-y: auto;
  position: fixed;
  top: 60px;
  left: 0;
  border-right: 1px solid var(--border-color);
  transition: left 0.3s ease;
  z-index: 1040;
}

.active-left-sidebar {
  background: var(--accent-color);
  color: var(--text-color) !important;
  font-weight: bold;
  border-radius: 4px;
}

.doc-sidebar h4 {
  font-size: 1.1rem;
  margin-top: 20px;
  color: var(--text-color);
}

.doc-sidebar a {
  display: block;
  padding: 6px 10px;
  margin-bottom: 6px;
  color: var(--accent-color);
  font-size: 0.95rem;
}

.doc-sidebar a.active {
  background: var(--accent-color);
  color: #000;
  font-weight: bold;
  border-radius: 4px;
}

/* Main Content */
.doc-content {
  flex: 1;
  padding: 40px 30px;
  margin-left: 250px;
  margin-right: 250px;
  max-width: 100%;
}

.doc-content h2 {
  color: var(--accent-color);
  margin-top: 40px;
}

.doc-content p {
  line-height: 1.6;
}

.doc-content pre {
  background: var(--code-bg);
  padding: 15px;
  border-radius: 6px;
  color: var(--code-text);
  overflow-x: auto;
}

/* Right Sidebar */
.doc-rightbar {
  position: fixed;
  top: 60px;
  right: 0;
  width: 220px;
  background: var(--background);
  color: var(--text);
  padding: 20px;
  border-left: 1px solid var(--border-color);
  height: calc(100vh - 60px);
  overflow-y: auto;
  z-index: 1030;
  box-shadow: -2px 0 6px rgba(0, 0, 0, 0.1);
  font-size: 0.9rem;
}

.doc-rightbar h5 {
  font-size: 1rem;
  color: var(--text);
}

.doc-rightbar .rightbar-link {
  display: block;
  color: var(--text);
  padding: 6px 0;
}

.doc-rightbar .rightbar-link:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

/* Footer */
.footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
  margin-left: 250px;
  margin-right: 250px;
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 25px;
  z-index: 999;
  background-color: var(--accent-color);
  color: var(--bg-color);
  border: none;
  border-radius: 50%;
  padding: 10px 14px;
  font-size: 18px;
  cursor: pointer;
  display: none;
  transition: opacity 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.back-to-top:hover {
  opacity: 0.9;
}

/* Code Block */
.code-block {
  position: relative;
  margin-top: 10px;
}

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: none;
  color: var(--accent-color);
  font-size: 13px;
  cursor: pointer;
}

.copy-btn:hover {
  color: var(--text-color);
}

/* Responsive */
@media (max-width: 991.98px) {
  .doc-rightbar {
    display: none !important;
  }

  .doc-content {
    margin-right: 0;
  }

  .footer {
    margin-right: 0;
  }
}

@media (max-width: 767.98px) {
  .sidebar-toggle {
    display: inline-block;
  }

  .doc-sidebar {
    left: -260px;
  }

  .doc-sidebar.open {
    left: 0;
  }

  .doc-content {
    margin-left: 0;
    padding: 20px;
  }

  .footer {
    margin-left: 0;
  }
}

/* Right Sidebar */
.doc-rightbar {
  position: fixed;
  top: 60px;
  right: 0;
  width: 240px;
  height: calc(100vh - 60px);
  background: var(--background);
  color: var(--text);
  padding: 20px;
  border-left: 1px solid var(--border-color);
  overflow-y: auto;
  z-index: 1050;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.doc-rightbar.open {
  transform: translateX(0);
}

/* Rightbar Toggle Button (Mobile Only) */
.rightbar-toggle {
  position: fixed;
  bottom: 280px;
  right: 20px;
  z-index: 1055;
  background: var(--accent-color);
  color: var(--bg-color);
  border: none;
  border-radius: 50%;
  padding: 12px 14px;
  font-size: 18px;
  cursor: pointer;
  display: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.rightbar-toggle:hover {
  opacity: 0.9;
}

@media (max-width: 991.98px) {
  .rightbar-toggle {
    display: block;
  }

  .doc-rightbar {
    display: none;
    position: fixed;
    top: 60px;
    right: 0;
    width: 240px;
    background: var(--background);
    color: var(--text);
    padding: 20px;
    height: calc(100vh - 60px);
    overflow-y: auto;
    z-index: 1050;
    box-shadow: -2px 0 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
  }

  .doc-rightbar.open {
    display: block !important;
  }
}

/* Toggle Button */
.rightbar-toggle {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  right: 0;
  z-index: 1060;
  background: var(--accent-color);
  color: var(--bg-color);
  border: none;
  border-radius: 6px 0 0 6px;
  padding: 5px 6px;
  font-size: 18px;
  cursor: pointer;
  transition: right 0.3s ease;
  box-shadow: -2px 0 8px rgba(0, 0, 0, 0.25);
}

.rightbar-toggle.open {
  right: 240px;
}

/* Hide toggle on desktop */
@media (min-width: 992px) {
  .rightbar-toggle {
    display: none;
  }

  .doc-rightbar {
    transform: none !important;
    position: fixed;
  }
}

.doc-rightbar .rightbar-link.active {
  color: var(--accent-color);
  font-weight: bold;
  text-decoration: underline;
}

.content-start {
  margin-top: -40px;
}