/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Light mode colors */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --text-primary: #333333;
  --text-secondary: #666666;
  --accent-primary: #007bff;
  --accent-secondary: #0056b3;
  --border-color: #e9ecef;
  --shadow: rgba(0, 0, 0, 0.1);
  --code-bg: #f1f3f4;
  --code-text: #d73a49;
  --hero-gradient: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #3b82f6 100%);
  --footer-bg: #2c3e50;
  --footer-text: #ffffff;
  --footer-link: #3498db;
}

[data-theme='dark'] {
  /* Dark mode colors */
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --accent-primary: #4dabf7;
  --accent-secondary: #339af0;
  --border-color: #404040;
  --shadow: rgba(0, 0, 0, 0.3);
  --code-bg: #3d3d3d;
  --code-text: #ff6b6b;
  --hero-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  --footer-bg: #1a1a1a;
  --footer-text: #ffffff;
  --footer-link: #4dabf7;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  box-shadow: 0 2px 10px var(--shadow);
  z-index: 1000;
  height: 60px;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo a {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-logo a:hover {
  color: var(--accent-secondary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 15px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: var(--accent-primary);
  background-color: var(--bg-primary);
}

.nav-link.active {
  color: var(--accent-primary);
  background-color: var(--bg-primary);
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 5px;
}

.theme-toggle:hover {
  background-color: var(--accent-primary);
  color: var(--bg-secondary);
}

.theme-toggle:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

/* Main content */
.main-content {
  margin-top: 60px; /* Account for fixed navbar */
  min-height: calc(100vh - 120px); /* Account for navbar and footer */
  padding: 40px 20px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero section */
.hero {
  text-align: center;
  padding: 60px 0;
  background: var(--hero-gradient);
  color: white;
  margin-bottom: 40px;
  border-radius: 8px;
  transition: background 0.3s ease;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.hero-subtitle {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: 0;
}

/* Terminal logo */
.terminal-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.3);
  padding: 15px 20px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-family: 'Courier New', monospace;
  font-size: 1.2rem;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.terminal-symbol {
  color: #00ff00;
  font-weight: bold;
  text-shadow: 0 0 10px #00ff00;
  animation: blink 1.5s infinite;
}

.terminal-prompt {
  color: #00bfff;
  font-weight: bold;
}

.terminal-command {
  color: #ffffff;
  font-weight: 600;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0.3;
  }
}

/* Terminal cursor effect */
.terminal-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: #00ff00;
  margin-left: 2px;
  animation: blink 1s infinite;
}

/* Section styles */
section {
  margin-bottom: 40px;
}

h1,
h2 {
  margin-bottom: 20px;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
  margin-top: 40px;
}

h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

p {
  margin-bottom: 16px;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

/* Lists */
ul,
ol {
  margin-bottom: 20px;
  padding-left: 30px;
}

li {
  margin-bottom: 8px;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

/* Links */
a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  text-decoration: underline;
  color: var(--accent-secondary);
}

/* Code blocks */
.code-block {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  padding: 20px;
  border-radius: 6px;
  margin: 20px 0;
  font-family: 'Courier New', monospace;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

code {
  background-color: var(--code-bg);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  color: var(--code-text);
  transition: all 0.3s ease;
}

/* Support page specific styles */
.support-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.support-card {
  background: var(--bg-secondary);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 6px var(--shadow);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.support-card h3 {
  color: var(--text-primary);
  margin-bottom: 15px;
  transition: color 0.3s ease;
}

.support-card p {
  margin-bottom: 20px;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.support-button {
  display: inline-block;
  background: var(--accent-primary);
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.support-button:hover {
  background: var(--accent-secondary);
  text-decoration: none;
  transform: translateY(-2px);
}

/* Installation page specific styles */
.prerequisites,
.setup-options,
.project-features {
  background: var(--bg-secondary);
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 4px var(--shadow);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.next-steps {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  padding: 30px;
  border-radius: 8px;
  text-align: center;
  margin-top: 40px;
}

.next-steps h3 {
  color: white;
  margin-bottom: 15px;
}

/* Project description styles */
.features-list,
.project-structure {
  background: var(--bg-secondary);
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 4px var(--shadow);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.features-list li,
.project-structure li {
  margin-bottom: 10px;
}

/* About page specific styles */
.about-hero {
  text-align: center;
  padding: 60px 0;
  background: var(--hero-gradient);
  color: white;
  margin-bottom: 40px;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
  z-index: 1;
}

.about-hero .hero-content {
  position: relative;
  z-index: 2;
}

.about-hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.about-hero .section-subtitle {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: 0;
}

.project-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.link-card {
  background: var(--bg-secondary);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 6px var(--shadow);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.link-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px var(--shadow);
}

.link-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--hero-gradient);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.link-card:hover::before {
  transform: scaleX(1);
}

.link-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.link-card h3 {
  color: var(--text-primary);
  margin-bottom: 15px;
  font-size: 1.5rem;
  transition: color 0.3s ease;
}

.link-card p {
  margin-bottom: 20px;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.project-link {
  display: inline-block;
  background: var(--accent-primary);
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.project-link:hover {
  background: var(--accent-secondary);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.contribution-list {
  background: var(--bg-secondary);
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 4px var(--shadow);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.contribution-list li {
  margin-bottom: 10px;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

/* Footer */
.footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 20px 0;
  margin-top: 40px;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  transition: background-color 0.3s ease;
}

.footer-content {
  max-width: 1200px;
  padding: 0 20px;
  text-align: center;
  margin: 0 auto;
}

.footer-content p {
  margin-bottom: 10px;
}

.footer-content a {
  color: var(--footer-link);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-content a:hover {
  color: var(--accent-primary);
  text-decoration: underline;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 5px;
}

/* Responsive design */
@media (max-width: 768px) {
  .nav-container {
    padding: 0 15px;
  }

  .nav-menu {
    gap: 15px;
  }

  .nav-link {
    padding: 6px 12px;
    font-size: 0.9rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .main-content {
    padding: 20px 15px;
    margin-bottom: 80px; /* Account for fixed footer */
  }

  .support-methods {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .navbar {
    height: 50px;
  }

  .main-content {
    margin-top: 50px;
    min-height: calc(100vh - 130px);
    margin-bottom: 100px; /* Account for fixed footer */
  }

  .hero {
    padding: 40px 0;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .nav-logo a {
    font-size: 1.3rem;
  }

  .theme-toggle {
    padding: 6px 10px;
    font-size: 1rem;
  }

  .footer {
    padding: 15px 0;
  }
}

/* Mobile menu styles */
@media (max-width: 600px) {
  .mobile-menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 60px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background: var(--bg-secondary);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 50px;
    transition: left 0.3s ease;
    box-shadow: 0 2px 10px var(--shadow);
    z-index: 999;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-link {
    padding: 15px 20px;
    font-size: 1.1rem;
    width: 100%;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-controls {
    gap: 10px;
  }

  .theme-toggle {
    padding: 6px 8px;
    font-size: 0.9rem;
  }
}

/* Additional responsive improvements */
@media (max-width: 320px) {
  .nav-container {
    padding: 0 10px;
  }

  .nav-logo a {
    font-size: 1.2rem;
  }

  .theme-toggle {
    padding: 4px 6px;
    font-size: 0.8rem;
  }
}