:root {
  --primary: #6d28d9;
  --primary-dark: #5b21b6;
  --secondary: #f97316;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-100: #f1f5f9;
  --white: #ffffff;
  --max-width: 1200px;
  --border-radius: 12px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  line-height: 1.6;
  color: var(--slate-800);
  background: linear-gradient(135deg, var(--slate-100), #ffffff);
  min-height: 100vh;
}

/* Section Description */
.section-description {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
  color: var(--slate-600);
  font-size: 1.125rem;
  line-height: 1.7;
  padding: 0 1rem;
}

/* Header & Navigation */
header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--slate-700);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
}

.nav-links a:hover {
  color: var(--primary);
  background-color: rgba(109, 40, 217, 0.1);
}

.github-link {
  background-color: var(--slate-800);
  color: var(--white) !important;
  padding: 0.75rem 1.25rem !important;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease !important;
}

.github-link:hover {
  background-color: var(--primary) !important;
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  padding: 8rem 2rem 6rem;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
  min-height: 90vh;
}

.hero-content {
  position: relative;
}

.hero-content h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

.hero-content h1::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--slate-700);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.cta-buttons {
  display: flex;
  gap: 1.5rem;
}

.cta-primary,
.cta-secondary {
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.cta-primary {
  background-color: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 6px rgba(109, 40, 217, 0.2);
}

.cta-secondary {
  background-color: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.cta-primary:hover,
.cta-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(109, 40, 217, 0.2);
}

/* Code Preview */
.code-preview {
  background-color: var(--slate-800);
  padding: 2rem;
  border-radius: var(--border-radius);
  color: var(--white);
  font-family: 'Fira Code', monospace;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
}

.code-dots {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  gap: 0.5rem;
}

.code-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: block;
}

.code-dots span:nth-child(1) {
  background-color: #ff5f56;
}

.code-dots span:nth-child(2) {
  background-color: #ffbd2e;
}

.code-dots span:nth-child(3) {
  background-color: #27c93f;
}

.code-preview pre {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.code-preview code {
  color: #a5b4fc;
}

/* Features Section */
.features {
  padding: 6rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
  color: var(--slate-800);
  position: relative;
}

.features h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

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

.feature-card {
  background-color: var(--white);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.feature-card i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  margin-bottom: 1rem;
  color: var(--slate-800);
  font-size: 1.5rem;
}

.feature-card p {
  color: var(--slate-700);
  line-height: 1.6;
}

/* Prerequisites Section */
.prerequisites {
  padding: 6rem 2rem;
  background: linear-gradient(to bottom, var(--white), var(--slate-100));
  position: relative;
  overflow: hidden;
}

.prerequisites::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.prerequisites h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.prerequisites-list {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.prerequisite-item {
  text-align: center;
  padding: 2.5rem 2rem;
  transition: all 0.3s ease;
  background-color: var(--white);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

.prerequisite-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.prerequisite-item i {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.prerequisite-item h3 {
  color: var(--slate-800);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.prerequisite-item p {
  color: var(--slate-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Roadmap Section */
.roadmap {
  padding: 6rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  background-color: var(--white);
}

.roadmap h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
}

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

.roadmap-item {
  background-color: var(--white);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius);
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.roadmap-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.roadmap-item i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.roadmap-item h3 {
  color: var(--slate-800);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.roadmap-item p {
  color: var(--slate-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Footer */
footer {
  background-color: var(--slate-800);
  color: var(--white);
  padding: 3rem 2rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.social-links a {
  color: var(--white);
  font-size: 1.5rem;
  transition: all 0.3s ease;
  margin-left: 1rem;
}

.social-links a:hover {
  color: var(--secondary);
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
    padding-top: 6rem;
    min-height: auto;
  }

  .hero-content h1 {
    font-size: 3rem;
  }

  .hero-content h1::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .hero-description {
    margin: 0 auto 2rem;
  }

  .cta-buttons {
    justify-content: center;
  }

  .code-preview {
    max-width: 600px;
    margin: 0 auto;
  }

  .section-description {
    padding: 0 2rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

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

  .features-grid,
  .prerequisites-list,
  .roadmap-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .social-links {
    margin-top: 1rem;
  }

  .social-links a {
    margin: 0 0.5rem;
  }

  .cta-buttons {
    flex-direction: column;
    gap: 1rem;
  }

  .cta-primary,
  .cta-secondary {
    width: 100%;
    justify-content: center;
  }

  .section-description {
    font-size: 1rem;
    padding: 0 1rem;
  }

  h2 {
    font-size: 2rem !important;
  }
}