:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary-color: #ec4899;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --bg-white: #ffffff;
  --bg-light: #f9fafb;
  --bg-dark: #111827;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation */
.navbar {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 700;
  font-size: 1.5rem;
  gap: 0.5rem;
}

.logo-icon {
  font-size: 1.75rem;
}

.logo-text {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text-light);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-menu a:hover {
  color: var(--primary-color);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

.nav-menu a:hover::after {
  width: 100%;
}

.github-link {
  background: var(--primary-color);
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-weight: 600;
}

.github-link:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.github-link::after {
  display: none;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  gap: 4px;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 3px;
  background: var(--text-dark);
  transition: var(--transition);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 6rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero .subtitle {
  font-size: 1.5rem;
  margin-bottom: 2.5rem;
  opacity: 0.95;
  font-weight: 300;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: white;
  color: var(--primary-color);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: transparent;
  color: white;
  border-color: white;
}

.btn-secondary:hover {
  background: white;
  color: var(--primary-color);
}

/* Feature Grid */
.features-section {
  padding: 5rem 0;
  background: var(--bg-light);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-subtitle {
  text-align: center;
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.7;
}

/* Screenshots */
.screenshots-section {
  padding: 5rem 0;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.screenshot-item {
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.screenshot-item:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-xl);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

.screenshot-caption {
  padding: 1rem;
  background: white;
  font-weight: 600;
  color: var(--text-dark);
  text-align: center;
}

/* Installation Section */
.install-section {
  padding: 5rem 0;
  background: var(--bg-light);
}

.install-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.install-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--primary-color);
}

.install-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.install-card pre {
  background: var(--bg-dark);
  color: #e5e7eb;
  padding: 1rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.5;
}

.install-card code {
  font-family: 'Monaco', 'Courier New', monospace;
}

.install-card .description {
  color: var(--text-light);
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: #e5e7eb;
  padding: 3rem 0 1rem;
  margin-top: 5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.footer-section h4 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: white;
}

.footer-section p {
  color: #9ca3af;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: #9ca3af;
  text-decoration: none;
  transition: var(--transition);
}

.footer-section ul li a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  color: #9ca3af;
}

/* Documentation Page */
.docs-content {
  padding: 4rem 0;
  max-width: 900px;
  margin: 0 auto;
}

.docs-content h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--text-dark);
}

.docs-content h2 {
  font-size: 2rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.docs-content h3 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.docs-content p {
  margin-bottom: 1rem;
  line-height: 1.8;
  color: var(--text-light);
}

.docs-content ul, .docs-content ol {
  margin-bottom: 1rem;
  padding-left: 2rem;
  color: var(--text-light);
}

.docs-content li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.docs-content code {
  background: var(--bg-light);
  padding: 0.2rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.875rem;
  font-family: 'Monaco', 'Courier New', monospace;
  color: var(--primary-dark);
}

.docs-content pre {
  background: var(--bg-dark);
  color: #e5e7eb;
  padding: 1.5rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.docs-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.docs-content img {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
  margin: 2rem 0;
  box-shadow: var(--shadow-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 1rem 0;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--border-color);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
    text-align: center;
    padding: 0.5rem 0;
  }

  .nav-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
  }

  .nav-menu a::after {
    display: none;
  }

  .github-link {
    margin: 0.5rem 1.5rem;
    display: inline-block;
    width: auto;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero .subtitle {
    font-size: 1.25rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .feature-grid,
  .screenshot-grid,
  .install-methods {
    grid-template-columns: 1fr;
  }

  .screenshot-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}