:root {
  --bg-dark: #1a1a2e;
  --bg-medium: #16213e;
  --bg-light: #0f3460;
  --accent: #00ff99;
  --accent-dark: #00cc7a;
  --text-light: #e7e7e7;
  --text-dim: #a7a7a7;
  --code-bg: #111927;
  --error-color: #ff5252;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-light);
  font-family: 'Segoe UI', 'Roboto', sans-serif;
  line-height: 1.6;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header Styles */
header {
  background-color: var(--bg-medium);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid var(--accent);
}

.logo h1 {
  font-size: 2rem;
  margin: 0;
  color: var(--accent);
  display: flex;
  align-items: center;
}

.tagline {
  color: var(--text-dim);
  font-size: 0.85rem;
  display: block;
  margin-top: -5px;
}

nav {
  display: flex;
  gap: 10px;
}

.nav-button {
  background: transparent;
  color: var(--text-light);
  padding: 0.5rem 1rem;
  border: 1px solid var(--bg-light);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.nav-button:hover {
  background-color: var(--bg-light);
}

.nav-button.active {
  background-color: var(--accent);
  color: var(--bg-dark);
  border-color: var(--accent);
  font-weight: bold;
}

.github-button {
  background-color: #333;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
}

.github-button:hover {
  background-color: #555;
}

/* Main Content Styles */
main {
  flex: 1;
  padding: 1rem 2rem;
  overflow-y: auto;
}

.tab-content {
  display: none;
  height: 100%;
}

.tab-content.active {
  display: block;
}

/* Editor Tab Styles */
.editor-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.editor-controls {
  display: flex;
  gap: 10px;
}

#exampleSelector {
  background-color: var(--bg-medium);
  color: var(--text-light);
  padding: 0.5rem;
  border: 1px solid var(--bg-light);
  border-radius: 4px;
  font-size: 0.9rem;
}

#runButton {
  background-color: var(--accent);
  color: var(--bg-dark);
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  font-weight: bold;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
}

#runButton:hover {
  background-color: var(--accent-dark);
}

.editor-panel {
  flex: 1;
  min-height: 300px;
}

#codeArea {
  width: 100%;
  height: 100%;
  background: var(--code-bg);
  color: #fff;
  border: 2px solid var(--bg-light);
  border-radius: 4px;
  padding: 1rem;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 1rem;
  line-height: 1.5;
  resize: none;
  outline: none;
  transition: border 0.3s ease;
}

#codeArea:focus {
  border-color: var(--accent);
}

/* Editor and Output Layout */
.code-output-layout {
  display: flex;
  gap: 1rem;
  height: 500px;
  margin-top: 1rem;
}

.code-panel, .output-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-medium);
  border-radius: 8px;
  overflow: hidden;
}

.panel-header {
  background-color: var(--bg-light);
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--accent);
}

.panel-header h4 {
  margin: 0;
  color: var(--accent);
  font-size: 1rem;
}

#codeArea {
  flex: 1;
  background-color: var(--code-bg);
  color: var(--text-light);
  border: none;
  padding: 1rem;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  outline: none;
  margin: 0;
}

#outputBox {
  flex: 1;
  background-color: var(--code-bg);
  color: #0ff;
  padding: 1rem;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-y: auto;
  border: none;
  margin: 0;
}

.output-placeholder {
  color: var(--text-dim);
  font-style: italic;
  text-align: center;
  padding: 2rem;
}

#clearButton {
  background-color: transparent;
  color: var(--text-dim);
  border: 1px solid var(--text-dim);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

#clearButton:hover {
  color: var(--text-light);
  border-color: var(--text-light);
}

/* Remove old output styles */
.output-container {
  display: none;
}

.editor-panel {
  display: none;
}

/* Documentation Tab Styles */
.docs-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem 0;
}

.doc-section {
  margin-bottom: 2rem;
  background-color: var(--bg-medium);
  padding: 1.5rem;
  border-radius: 8px;
}

.doc-section h3 {
  margin-bottom: 1rem;
  color: var(--accent);
  border-bottom: 1px solid var(--bg-light);
  padding-bottom: 0.5rem;
}

.language-feature {
  margin-bottom: 1.5rem;
}

.language-feature h4 {
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.code-example {
  background-color: var(--code-bg);
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.code-example code {
  color: var(--accent);
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.code-example p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  background-color: var(--bg-dark);
  border-radius: 4px;
  overflow: hidden;
}

.comparison-table th, .comparison-table td {
  padding: 0.8rem;
  text-align: left;
  border-bottom: 1px solid var(--bg-light);
}

.comparison-table th {
  background-color: var(--bg-light);
  color: var(--accent);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

/* About Tab Styles */
.about-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem 0;
}

.about-section {
  background-color: var(--bg-medium);
  padding: 2rem;
  border-radius: 8px;
}

.about-section h3 {
  color: var(--accent);
  margin: 1.5rem 0 0.8rem 0;
}

.about-section h3:first-child {
  margin-top: 0;
}

.tech-stack, .creator-info {
  margin-top: 1.5rem;
}

.tech-stack ul, .about-section ul {
  margin-left: 1.5rem;
  margin-top: 0.5rem;
}

.about-section a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
}

.about-section a:hover {
  text-decoration: underline;
}

/* Footer Styles */
footer {
  background-color: var(--bg-medium);
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    padding: 1rem;
  }
  
  .logo {
    margin-bottom: 1rem;
  }
  
  nav {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
  
  main {
    padding: 1rem;
  }
  
  .editor-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .editor-controls {
    width: 100%;
  }
  
  #exampleSelector, #runButton {
    flex: 1;
  }
}