/* OXY-GEN - Styles futuristes */
/* Thème dark futuriste avec néons bleu/violet */

:root {
  --bg: #0a0a0f;
  --panel: rgba(20, 20, 35, 0.8);
  --text: #e8eef5;
  --muted: #8a9ba8;
  --blue: #00d9ff;
  --violet: #8b5cf6;
  --blue-glow: rgba(0, 217, 255, 0.5);
  --violet-glow: rgba(139, 92, 246, 0.5);
  --border-color: rgba(138, 155, 168, 0.2);
  --focus-color: var(--blue);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  cursor: none; /* Custom cursor */
}

/* Custom Cursor */
#custom-cursor {
  position: fixed;
  width: 20px;
  height: 20px;
  border: 2px solid var(--blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s;
  box-shadow: 0 0 20px var(--blue-glow);
}

#custom-cursor.hover {
  width: 40px;
  height: 40px;
  border-color: var(--violet);
  box-shadow: 0 0 30px var(--violet-glow);
}

#cursor-trail {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.6;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px var(--blue-glow);
}

/* Background animé Aurora */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  animation: aurora 20s ease-in-out infinite;
  z-index: -2;
  pointer-events: none;
}

@keyframes aurora {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 1; }
  33% { transform: translate(30px, -30px) scale(1.1); opacity: 0.8; }
  66% { transform: translate(-20px, 20px) scale(0.9); opacity: 0.9; }
}

/* Grain overlay */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.03;
  z-index: -1;
  pointer-events: none;
  animation: grain 0.2s steps(6) infinite;
}

@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-5%, -5%); }
  20% { transform: translate(-10%, 5%); }
  30% { transform: translate(5%, -10%); }
  40% { transform: translate(-5%, 15%); }
  50% { transform: translate(-10%, 5%); }
  60% { transform: translate(15%, 0); }
  70% { transform: translate(0, 10%); }
  80% { transform: translate(-15%, 0); }
  90% { transform: translate(10%, 5%); }
}

/* Canvas pour particules */
#fx-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Header glassmorphism */
header {
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: all 0.3s;
}

.logo img {
  height: 40px;
  width: auto;
  filter: drop-shadow(0 0 10px var(--blue-glow));
}

.logo:hover {
  color: var(--violet);
  text-shadow: 0 0 20px var(--violet-glow);
}

.logo:focus {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
  padding: 0.5rem 1rem;
  position: relative;
}

nav a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--violet));
  transform: translateX(-50%);
  transition: width 0.3s;
}

nav a:hover::before,
nav a:focus::before {
  width: 80%;
}

nav a:hover,
nav a:focus {
  color: var(--blue);
  text-shadow: 0 0 10px var(--blue-glow);
  outline: none;
}

nav a.active {
  color: var(--blue);
  text-shadow: 0 0 10px var(--blue-glow);
}

nav a.active::before {
  width: 80%;
}

nav .nav-inactive {
  color: var(--muted);
  opacity: 0.6;
  cursor: not-allowed;
  padding: 0.5rem 1rem;
  font-weight: 500;
}

/* Menu mobile */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  transition: all 0.3s;
}

.menu-toggle:hover {
  color: var(--blue);
  text-shadow: 0 0 10px var(--blue-glow);
}

.menu-toggle:focus {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

/* Main content */
main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1rem;
  position: relative;
  z-index: 1;
}

/* Hero section cinématique */
.hero {
  text-align: center;
  padding: 6rem 0 4rem;
  margin-bottom: 4rem;
  position: relative;
}

.hero-logo {
  margin-bottom: 2rem;
  animation: float 6s ease-in-out infinite;
}

.hero-logo img {
  height: 120px;
  width: auto;
  filter: drop-shadow(0 0 30px var(--blue-glow));
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  animation: shimmer 3s ease-in-out infinite;
  text-shadow: 0 0 40px var(--blue-glow);
}

@keyframes shimmer {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.3); }
}

.hero h1.glitch {
  position: relative;
}

.hero h1.glitch::before,
.hero h1.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero h1.glitch::before {
  left: -2px;
  text-shadow: 2px 0 var(--violet);
  clip: rect(44px, 450px, 56px, 0);
  animation: glitch 3s infinite;
}

.hero h1.glitch::after {
  left: 2px;
  text-shadow: -2px 0 var(--blue);
  clip: rect(44px, 450px, 56px, 0);
  animation: glitch 2s infinite;
}

@keyframes glitch {
  0% { clip: rect(42px, 9999px, 44px, 0); }
  5% { clip: rect(12px, 9999px, 59px, 0); }
  10% { clip: rect(48px, 9999px, 29px, 0); }
  15% { clip: rect(42px, 9999px, 73px, 0); }
  20% { clip: rect(63px, 9999px, 27px, 0); }
  25% { clip: rect(34px, 9999px, 55px, 0); }
  30% { clip: rect(86px, 9999px, 73px, 0); }
  35% { clip: rect(20px, 9999px, 20px, 0); }
  40% { clip: rect(26px, 9999px, 60px, 0); }
  45% { clip: rect(50px, 9999px, 34px, 0); }
  50% { clip: rect(60px, 9999px, 28px, 0); }
  55% { clip: rect(68px, 9999px, 45px, 0); }
  60% { clip: rect(10px, 9999px, 60px, 0); }
  65% { clip: rect(5px, 9999px, 14px, 0); }
  70% { clip: rect(79px, 9999px, 13px, 0); }
  75% { clip: rect(17px, 9999px, 79px, 0); }
  80% { clip: rect(76px, 9999px, 34px, 0); }
  85% { clip: rect(32px, 9999px, 11px, 0); }
  90% { clip: rect(67px, 9999px, 70px, 0); }
  95% { clip: rect(95px, 9999px, 3px, 0); }
  100% { clip: rect(14px, 9999px, 83px, 0); }
}

.hero p {
  font-size: 1.5rem;
  color: var(--muted);
  max-width: 700px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Sections */
section {
  margin-bottom: 5rem;
  position: relative;
}

section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1rem;
  position: relative;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--violet));
  box-shadow: 0 0 10px var(--blue-glow);
}

section h3 {
  font-size: 1.75rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--blue);
  text-shadow: 0 0 10px var(--blue-glow);
}

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

.card {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 217, 255, 0.1), transparent);
  transition: left 0.5s;
}

.card:hover::before {
  left: 100%;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--blue);
  box-shadow: 0 10px 40px rgba(0, 217, 255, 0.3);
}

.card-tilt {
  transform-style: preserve-3d;
  transition: transform 0.1s;
}

.card h3 {
  color: var(--blue);
  margin-top: 0;
  margin-bottom: 1rem;
  text-shadow: 0 0 10px var(--blue-glow);
}

.card p {
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.card-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  color: var(--bg);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 20px;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  color: var(--bg);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 700;
  transition: all 0.3s;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 20px var(--blue-glow);
  animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px var(--blue-glow); }
  50% { box-shadow: 0 0 30px var(--blue-glow), 0 0 40px var(--violet-glow); }
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:hover,
.btn:focus {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 0 40px var(--blue-glow), 0 0 60px var(--violet-glow);
  outline: none;
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--blue);
  color: var(--blue);
  box-shadow: 0 0 20px var(--blue-glow);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--blue);
  color: var(--bg);
  box-shadow: 0 0 40px var(--blue-glow);
}

.btn-inactive {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
  animation: none;
}

.btn-inactive:hover {
  transform: none;
  box-shadow: 0 0 20px var(--blue-glow);
}

/* Links */
a {
  color: var(--blue);
  text-decoration: none;
  transition: all 0.3s;
}

a:hover,
a:focus {
  color: var(--violet);
  text-shadow: 0 0 10px var(--violet-glow);
  outline: none;
}

a:focus {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

/* Lists */
ul, ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
  color: var(--muted);
}

/* Footer */
footer {
  background: var(--panel);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-color);
  padding: 3rem 1rem;
  margin-top: 5rem;
  text-align: center;
  position: relative;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: var(--muted);
  transition: all 0.3s;
}

.footer-links a:hover,
.footer-links a:focus {
  color: var(--blue);
  text-shadow: 0 0 10px var(--blue-glow);
}

footer p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Contact info */
.contact-info {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  margin: 2rem 0;
  position: relative;
}

.contact-info::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--violet));
  box-shadow: 0 0 10px var(--blue-glow);
}

.contact-info p {
  margin-bottom: 0.5rem;
}

/* FAQ */
.faq-item {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: var(--blue);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.2);
}

.faq-item h3 {
  margin-top: 0;
  font-size: 1.25rem;
  color: var(--blue);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item h3::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--blue);
  transition: transform 0.3s;
}

.faq-item.active h3::after {
  transform: rotate(45deg);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-content {
  max-height: 500px;
  margin-top: 1rem;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(50px) scale(0.9);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Glass effect */
.glass {
  background: var(--panel);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
}

/* Neon border */
.neon-border {
  border: 2px solid var(--blue);
  box-shadow: 
    0 0 10px var(--blue-glow),
    inset 0 0 10px var(--blue-glow);
}

/* Glow effect */
.glow {
  text-shadow: 0 0 20px var(--blue-glow);
}

/* Timeline */
.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline-item {
  position: relative;
  padding-left: 3rem;
  margin-bottom: 3rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 20px var(--blue-glow);
  border: 3px solid var(--bg);
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: 9px;
  top: 20px;
  width: 2px;
  height: calc(100% + 1rem);
  background: linear-gradient(180deg, var(--blue), var(--violet));
  box-shadow: 0 0 10px var(--blue-glow);
}

.timeline-item:last-child::after {
  display: none;
}

.timeline-item h3 {
  color: var(--blue);
  margin-bottom: 0.5rem;
}

.timeline-item p {
  color: var(--muted);
}

/* Responsive */
@media (max-width: 768px) {
  body {
    cursor: auto; /* Désactiver custom cursor sur mobile */
  }

  #custom-cursor,
  #cursor-trail {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  nav {
    width: 100%;
    display: none;
  }

  nav.active {
    display: block;
    margin-top: 1rem;
  }

  nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }

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

  .hero p {
    font-size: 1.2rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  section h2 {
    font-size: 2rem;
  }

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

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

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

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

  .hero-logo img {
    height: 80px;
  }

  main {
    padding: 1.5rem 1rem;
  }
}