:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-display);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: 0;
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.2s ease;
}

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

/* Hero Section */
.hero {
  padding: 8rem 2rem 4rem;
  display: flex;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  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;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease;
}

.highlight {
  color: var(--accent-color);
  position: relative;
}

.highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: rgba(245, 158, 11, 0.3);
  border-radius: 4px;
}

.hero-description {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

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

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

/* Code Preview */
.hero-visual {
  animation: fadeInUp 0.8s ease 0.6s both;
}

.code-preview {
  background: #1e1e1e;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: perspective(1000px) rotateY(-5deg);
  transition: transform 0.3s ease;
}

.code-preview:hover {
  transform: perspective(1000px) rotateY(0deg);
}

.code-header {
  background: #2d2d2d;
  padding: 0.75rem 1rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.code-preview pre {
  padding: 1.5rem;
  margin: 0;
  color: #d4d4d4;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  overflow-x: auto;
}

.code-preview code {
  display: block;
}

/* Sections */
.ateliers, .projets, .why-vanilla {
  padding: 5rem 0;
}

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

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Atelier Grid */
.atelier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.atelier-card {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.atelier-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.atelier-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

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

.atelier-number {
  width: 3rem;
  height: 3rem;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.atelier-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.atelier-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.atelier-links {
  display: flex;
  gap: 1rem;
}

.link {
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

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

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

.link.primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

/* Projects Section */
.projets {
  background: var(--bg-secondary);
}

.coming-soon {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-primary);
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  max-width: 600px;
  margin: 0 auto;
}

.coming-soon-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.coming-soon h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.coming-soon p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* Why Vanilla Section */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.why-card {
  text-align: center;
  padding: 2rem;
  background: var(--bg-primary);
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.why-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.why-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.why-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Footer */
.footer {
  background: var(--text-primary);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: white;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1rem;
}

.footer-section a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: color 0.2s ease;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom a {
  color: white;
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .hero {
    padding: 6rem 1rem 3rem;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

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

  .hero-actions {
    justify-content: center;
    flex-wrap: wrap;
  }

  .code-preview {
    transform: none;
  }

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

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .container {
    padding: 0 1rem;
  }
}