/* ========================================
   NAVIGATION - Design sobre et épuré RESPONSIVE
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  backdrop-filter: blur(8px) saturate(1.1);
  -webkit-backdrop-filter: blur(8px) saturate(1.1);
  background: rgba(10, 10, 10, 0.6);
  border-bottom: 1px solid rgba(245, 245, 220, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Logo - minimaliste avec effet subtil */
.logo {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #f5f5dc;
  position: relative;
  transition: all 0.2s ease;
  text-decoration: none;
  z-index: 1001;
}

.logo:hover {
  transform: translateY(-1px);
  color: #ffffff;
}

/* Navigation links - style épuré */
.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: rgba(245, 245, 220, 0.7);
  text-decoration: none;
  position: relative;
  padding: 0.5rem 0;
  transition: all 0.2s ease;
}

/* Effet hover minimaliste */
.nav-link:hover {
  color: #f5f5dc;
  transform: translateY(-1px);
}

/* État actif - point discret */
.nav-link.active {
  color: #f5f5dc;
  position: relative;
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background: #f5f5dc;
  border-radius: 50%;
  opacity: 0.8;
}

/* État scrollé - navbar plus compacte */
.navbar.scrolled {
  padding: 0.8rem 0;
  background: rgba(10, 10, 10, 0.65);
  border-bottom-color: rgba(245, 245, 220, 0.12);
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
}

.navbar.scrolled .logo {
  font-size: 0.85rem;
}

.navbar.scrolled .nav-link {
  font-size: 0.75rem;
}

/* Menu mobile - hamburger épuré */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 1001;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  background: rgba(245, 245, 220, 0.8);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.nav-toggle:hover span {
  background: #f5f5dc;
}

/* Animation hamburger -> X */
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(3px, 3px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(3px, -3px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem 0;
  }
  
  .nav-container {
    padding: 0 1.5rem;
  }
  
  .logo {
    font-size: 0.85rem;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  /* Menu mobile en overlay glassmorphism */
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    padding: 0;
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-link {
    font-size: 1.1rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    padding: 1rem 0;
    text-align: center;
    color: rgba(245, 245, 220, 0.9);
    position: relative;
  }
  
  .nav-link:hover {
    color: #ffffff;
    font-weight: 400;
    transform: none;
  }
  
  .nav-link.active::before {
    display: none;
  }
  
  /* Indicateur actif mobile - ligne sous le texte */
  .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 1px;
    background: #f5f5dc;
    opacity: 0.8;
  }

  .nav-link.active {
    color: #f5f5dc;
    font-weight: 400;
  }
}

/* Tablette */
@media (max-width: 1024px) and (min-width: 769px) {
  .nav-container {
    padding: 0 1.5rem;
  }
  
  .nav-links {
    gap: 2rem;
  }
  
  .nav-link {
    font-size: 0.75rem;
  }
  
  .logo {
    font-size: 0.85rem;
  }
}

/* Petit mobile */
@media (max-width: 480px) {
  .nav-container {
    padding: 0 1rem;
  }
  
  .navbar {
    padding: 0.8rem 0;
  }
  
  .logo {
    font-size: 0.8rem;
  }
  
  .nav-link {
    font-size: 1rem;
    gap: 1.5rem;
  }
  
  .nav-toggle span {
    width: 16px;
  }
}

/* Très petit écran */
@media (max-width: 320px) {
  .nav-container {
    padding: 0 0.8rem;
  }
  
  .logo {
    font-size: 0.75rem;
  }
}

/* Animation d'entrée au chargement */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.navbar {
  animation: fadeInDown 0.6s ease-out;
}

/* Prévenir le scroll du body quand le menu mobile est ouvert */
body.nav-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

/* Touch-friendly pour mobile */
@media (hover: none) and (pointer: coarse) {
  .nav-link {
    padding: 1rem 1.5rem;
    margin: 0.2rem 0;
  }
  
  .nav-toggle {
    padding: 0.8rem;
  }
}

/* Amélioration de performance pour les animations mobile */
@media (max-width: 768px) {
  .nav-links {
    will-change: transform, opacity;
  }
  
  .nav-links.active {
    animation: slideInMobile 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  @keyframes slideInMobile {
    from {
      transform: translateY(-100%);
      opacity: 0;
    }
    to {
      transform: translateY(0);
      opacity: 1;
    }
  }
}