/* Variables para modo claro */
:root {
  --bg-body: #f9f9f9;
  --text-color: #333;
  --bg-sidebar: #2c3e50;
  --text-sidebar: #ecf0f1;
  --sidebar-hover: #34495e;
  --bg-content: #fff;
  --bg-footer: #222;
  --text-footer: #fff;
  --scrollbar-thumb: #ccc;
  --code-bg: #2d2d2d;
  --code-text: #f8f8f2;
}

/* Variables para modo oscuro */
body.dark {
  --bg-body: #1e1e1e;
  --text-color: #e0e0e0;
  --bg-sidebar: #111;
  --text-sidebar: #f0f0f0;
  --sidebar-hover: #222;
  --bg-content: #2a2a2a;
  --bg-footer: #000;
  --text-footer: #bbb;
  --scrollbar-thumb: #555;
  --code-bg: #3b3b3b; /* un gris más claro que el fondo */
  --code-text: #ffffff;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-body);
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Encabezado */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1rem;
  background: var(--bg-sidebar);
  color: var(--text-sidebar);
}

#theme-toggle {
  background: transparent;
  color: var(--text-sidebar);
  border: 1px solid var(--text-sidebar);
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
}

/* Contenedor principal */
.container {
  flex: 1;
  display: flex;
  min-height: 0;
}

.sidebar {
  width: 240px;
  background: var(--bg-sidebar);
  color: var(--text-sidebar);
  padding: 20px;
  overflow-y: auto;
}

.sidebar h2 {
  margin-top: 0;
  margin-bottom: 15px;
  font-weight: 600;
  font-size: 1.3em;
}

.sidebar ul {
  list-style: none;
  padding-left: 0;
}

.sidebar ul li {
  margin-bottom: 12px;
}

.sidebar ul li a {
  color: var(--text-sidebar);
  text-decoration: none;
  font-size: 1em;
  display: block;
  padding: 6px 10px;
  border-radius: 4px;
  transition: background-color 0.3s;
}

.sidebar ul li a:hover,
.sidebar ul li a.active {
  background-color: var(--sidebar-hover);
}

.content {
  flex-grow: 1;
  padding: 30px;
  overflow-y: auto;
  background: var(--bg-content);
  box-shadow: inset 0 0 10px #0002;
  min-height: 0;
}

/* Markdown */
.content h1,
.content h2,
.content h3 {
  color: var(--text-color);
}

.content p {
  line-height: 1.6;
  font-size: 1rem;
}

/* Bloques de código */
.content pre, .content code {
  background-color: var(--code-bg);
  color: var(--code-text);
  font-family: 'Fira Code', monospace;
}

.content pre {
  padding: 15px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.95rem;
  line-height: 1.4;
}

.content code {
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9rem;
}

/* Botón copiar */
.code-block {
  position: relative;
  margin-bottom: 1.5em;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background-color: #6272a4;
  color: #f8f8f2;
  border: none;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background-color 0.3s;
  user-select: none;
  z-index: 10;
}

.copy-btn:hover {
  background-color: #505e8c;
}

/* Scrollbar */
.sidebar::-webkit-scrollbar,
.content::-webkit-scrollbar {
  width: 8px;
}

.sidebar::-webkit-scrollbar-thumb,
.content::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
  border-radius: 10px;
}

/* Footer */
.footer {
  background-color: var(--bg-footer);
  color: var(--text-footer);
  text-align: center;
  padding: 0.5rem;
}