/* Reset et variables CSS */
:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #8b5cf6;
  --accent-color: #06b6d4;
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --border-color: #27272a;
  --shadow-light: rgba(99, 102, 241, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.3);
  --gradient-primary: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  --gradient-accent: linear-gradient(
    135deg,
    var(--accent-color),
    var(--primary-color)
  );
}

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

body {
  font-family: "Inter", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  min-height: 100vh;
  position: relative;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  transition: all 0.3s ease;
}

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

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.1);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 80%;
}

/* Hero Section */
.hero {
  padding: 8rem 2rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  min-height: 80vh;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  gap: 3rem;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.5rem;
}

.hero-visual {
  position: relative;
  height: 400px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.floating-card {
  position: absolute;
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  animation: float 6s ease-in-out infinite;
  box-shadow: 0 10px 30px var(--shadow-light);
}

.floating-card.delay-1 {
  animation-delay: -2s;
  top: 20%;
  right: 20%;
  background: var(--gradient-accent);
}

.floating-card.delay-2 {
  animation-delay: -4s;
  bottom: 20%;
  left: 20%;
  background: linear-gradient(
    135deg,
    var(--secondary-color),
    var(--accent-color)
  );
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-20px) rotate(5deg);
  }
  66% {
    transform: translateY(10px) rotate(-5deg);
  }
}

/* Main Content */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.projects-section {
  margin-bottom: 6rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

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

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

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

.project-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  z-index: 2;
}

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

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px var(--shadow-medium);
  border-color: var(--primary-color);
}

/* Image de preview */
.project-preview {
  width: 100%;
  height: 200px;
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.project-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.project-card:hover .project-preview img {
  transform: scale(1.05);
}

.project-preview-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
  color: var(--text-muted);
  font-size: 3rem;
}

.project-preview-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(15, 15, 35, 0.3) 100%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .project-preview-overlay {
  opacity: 1;
}

/* Contenu de la carte */
.project-content {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.project-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
  flex: 1;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.project-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.project-link:hover {
  color: var(--primary-dark);
  transform: translateX(5px);
}

.project-status {
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary-color);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  margin-top: 4rem;
}

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

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

.footer-link {
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-link:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    padding: 0 1rem;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 6rem 1rem 2rem;
    text-align: center;
  }

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

  .hero-stats {
    justify-content: center;
    gap: 2rem;
  }

  .main {
    padding: 2rem 1rem;
  }

  .section-title {
    font-size: 2rem;
    flex-direction: column;
    gap: 0.5rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .nav {
    gap: 1rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

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

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

  .project-content {
    padding: 1.5rem;
  }

  .floating-card {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Animations d'entrée */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
}

.fade-in.delay-1 {
  animation-delay: 0.1s;
}
.fade-in.delay-2 {
  animation-delay: 0.2s;
}
.fade-in.delay-3 {
  animation-delay: 0.3s;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll smooth amélioré */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px; /* Compensation pour le header fixe */
}

/* Amélioration du scroll pour les navigateurs qui le supportent */
@supports (scroll-behavior: smooth) {
  html {
    scroll-behavior: smooth;
  }
}

/* Loading state */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 3rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Lazy loading pour les images */
.project-preview img.lazy {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-preview img.lazy.loaded {
  opacity: 1;
}