/* --- 1. VARIABLES & RESET --- */
:root {
  --bg-color:       #F5F5F5;      
  --text-main:      #1A1A1A;     
  --text-secondary: #8E8E8E;
  --accent:         #000000;
  --danger:         #E60012; /* Le rouge d'alerte NGE/Lazarus */
  --border:         #E0E0E0;
  --nav-height:     80px;
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
}

/* --- 2. TYPOGRAPHIE SPECIFIQUE (EVA STYLE) --- */
.eva {
  font-family: "Times New Roman", serif;
  font-weight: 900;         
  text-transform: uppercase;  
  line-height: 0.9;           
  letter-spacing: -0.05em;
  transform: scaleX(0.8);
  display: inline-block;
  transform-origin: left; /* Évite le décalage lors du scale */
}

/* --- 3. NAVIGATION (BARRE FIXE) --- */
.buttons {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: center;
  align-items: center;
  gap: 3rem;
  padding: 0.8rem;
  background-color: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(5px); /* Effet moderne */
  
  /* Masqué par défaut */
  transform: translateY(-100%); 
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.buttons.active {
  transform: translateY(0);
}

.buttons a {
  text-decoration: none;
  color: #FFFFFF;
  font-size: 0.9rem;
  transition: opacity 0.3s, color 0.3s;
}

.buttons a:hover {
  color: var(--text-secondary);
}

.buttons img {
  height: 45px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1); /* Logo blanc */
}

/* --- 4. HERO & CAROUSEL --- */
.hero {
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  background-color: #000;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  z-index: 0;
  transition: opacity 1s ease-in-out;
  display: flex;
  justify-content: center;
  align-items: center;
}

.slide.active {
  opacity: 1;
  z-index: 1;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7); /* Pour faire ressortir le texte */
}

.slide-content {
  position: absolute;
  z-index: 2;
  text-align: center;
  color: white;
  max-width: 800px;
}

.slide-content h2 {
  font-size: 4.5rem;
  margin-bottom: 1rem;
  text-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.slide-content p {
  font-size: 1.2rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Contrôles du Carrousel */
.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: none;
  border: none;
  color: rgba(255,255,255,0.5);
  font-size: 2.5rem;
  cursor: pointer;
  padding: 30px;
  transition: color 0.3s;
}

.nav-btn:hover { color: white; }
.prev { left: 20px; }
.next { right: 20px; }

.carousel-pagination {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}

.dot {
  width: 40px; /* Style bâtonnet plutôt que rond */
  height: 3px;
  background: rgba(255,255,255,0.3);
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.3s;
}

.dot.active { background: white; }

/* --- 5. SECTIONS DE CONTENU --- */
.section-container {
  padding: 100px 10%;
  border-bottom: 1px solid var(--border);
  background: white;
}

.section-title {
  font-size: 3.5rem;
  margin-bottom: 4rem;
  color: var(--accent);
}

section {
  scroll-margin-top: var(--nav-height);
}

/* Grilles (Products & Team) */
.product-grid, .team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.product-card, .member {
  padding: 3rem 2rem;
  border: 1px solid var(--border);
  background: #FFF;
  transition: transform 0.4s, background 0.4s, color 0.4s;
}

.product-card h3, .member h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.product-card:hover {
  background: var(--accent);
  color: #FFF;
  transform: translateY(-10px);
}

.member span {
  display: block;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-weight: bold;
  font-size: 0.8rem;
  text-transform: uppercase;
}

/* Roadmap */
.roadmap-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.roadmap-item {
  flex: 1;
  min-width: 280px;
  padding: 30px;
  border-left: 3px solid var(--accent);
  background: #f9f9f9;
}

.roadmap-item.highlight {
  border-left-color: var(--danger);
  background-color: #fff1f1;
}

.year {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 15px;
}

.roadmap-item h4 {
  margin-bottom: 10px;
  font-size: 1.4rem;
}


footer {
  padding: 40px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}