:root {
  --bg-color: #050505;
  --grid-color: rgba(255, 255, 255, 0.05);
  --accent-color: #92e002; /* Bleu néon (Cyberpunk/Synthwave) */
  --text-color: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  cursor: none; /* On cache le curseur par défaut pour mettre le nôtre */
}

body {
  background-color: var(--bg-color);
  /* Création de la grille de fond */
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 50px 50px;
  color: var(--text-color);
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  overflow-x: hidden;
  scroll-behavior: smooth; /* Scrolling fluide */
}

/******************curseur */
/* === 2. CURSEUR PERSONNALISÉ === */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  pointer-events: none; /* Pour ne pas bloquer les clics */
  transform: translate(-50%, -50%);
  transition:
    width 0.2s,
    height 0.2s,
    background-color 0.2s;
  z-index: 9999;
  background-color: rgb(154, 255, 95);
}

.custom-cursor.hovered {
  width: 50px;
  height: 50px;
  background-color: rgba(154, 255, 95, 0.007);
}

/* --- NAVIGATION --- */
.app-nav {
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: transparent;
  backdrop-filter: blur(10px); /* Effet verre (Glassmorphism) */
  z-index: 100;

  border-bottom: 0.5px solid white;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  margin: 0 15px;
  font-weight: 400;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-links a.active,
.nav-links a:hover {
  font-weight: 700;
  padding: 20px 0 20px 0;

  /*********/
  box-shadow: 0 1px 35px #92e002;
  border: 2.5px solid white;
  border-left: 12px;
  border-right: 12px;
  border-top: 12px;

  
}
/************************/

#theme-toggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

.page-container {
  padding: 120px 5% 50px 5%; /* Espace pour que  la navbar ne cache pas */
  max-width: 1900px;
  margin: 0 auto;
  justify-content: center;
  align-items: center;
}

/**************************************/

.section-title {
  font-size: 1.9rem;
  font-weight: 900;
  margin: auto;
  padding-bottom: 11px;
  letter-spacing: -2px;
  justify-content: center;
  align-items: center;
}

/* --- 4. GALERIE AVEC MENU LATÉRAL --- */
.gallery-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 60px;
  align-items: start;
}

.gallery-sidebar {
  background: transparent;
  backdrop-filter: blur(80px); /*Effet verre (Glassmorphism) */
  /*background: rgb(110, 238, 255);*/
  border: 0.5px solid white; /* Rappel subtil de la grille du fond */
  border-radius: 24px; /* Coins très ronds typiques du Bento/Apple */

  display: flex;
  flex-direction: column;
  justify-content: center;

  transition:
    transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
    box-shadow 0.3s ease;

  position: sticky;
  top: 120px;
  padding: 20px;
  
}

.gallery-sidebar h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
  opacity: 0.5;
}

.filter-menu-vertical {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: sticky;
}

.filter-btn {
  text-align: left;
  padding: 12px 15px;
  background: transparent;
  border: none;
  color: var(--text-color);
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

/************************************/

.filter-btn:hover {
  /**/
  box-shadow: 0 2px 35px #92e002;
  border-radius: 55px;
  border: 2.5px solid white;
}

.filter-btn.active {
  font-weight: 100;
  font-family: Verdana, Geneva, Tahoma, sans-serif;

  box-shadow: 0 2px 35px #92e002;
  border-radius: 55px;
  border: 2.5px solid white;

  background-color: white;
  color: #000000;
}

/************************************/

.filter-btn.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20%;
  height: 60%;
  width: 3px;
  /*background:  #7502e0;*/
}

/* --- 5. GRILLE D'IMAGES --- */
.minimal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 50px;
}

.grid-item {
  cursor: pointer;
  animation: fadeIn 0.8s ease forwards;
}

.item-visual {
  /*aspect-ratio: 4 / 3;*/
  background: var(--grid-color);
  overflow: hidden;
  border: 1px solid var(--grid-color);
}

.item-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.2, 1, 0.3, 1);
}

.grid-item:hover .item-visual img {
  transform: scale(1.05);
}

/* --- 7. ANIMATIONS & RESPONSIVE --- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .gallery-layout {
    grid-template-columns: 1fr;
  }
  .gallery-sidebar {
    position: relative;
    top: 0;
    border-right: none;
    border-bottom: 1px solid var(--grid-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
  }
  .filter-menu-vertical {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .modal-content {
    flex-direction: column;
    overflow-y: auto;
  }
  .modal-visual {
    padding: 20px;
  }
}

/* === 7. MENU BURGER & RESPONSIVE === */

/* Style du bouton burger (caché par défaut sur PC) */
.burger-menu {
  display: none;
  cursor: pointer;
  z-index: 101; /* Toujours au-dessus du menu déployé */
}

/* Les 3 barres du burger */
.burger-menu div {
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin: 5px;
  transition: all 0.3s ease;
  border-radius: 2px;
}

/* MEDIA QUERY : Écrans de taille Tablette et Mobile */
@media screen and (max-width: 768px) {
  /* On affiche le burger */
  .burger-menu {
    display: block;
  }

  /* On transforme la barre de liens en menu plein écran */
  .nav-links {
    position: fixed;
    right: -100%; /* Caché hors de l'écran par défaut */
    top: 0;
    height: 100vh;
    width: 100vw;
    background-color: rgba(
      5,
      5,
      5,
      0.95
    ); /* Ton bg-color avec légère transparence */
    backdrop-filter: blur(15px); /* Garde l'effet verre */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 100;
  }

  /* On grossit et espace les liens pour le tactile */
  .nav-links a {
    margin: 20px 0;
    font-size: 1.5rem;
  }

  /* Classe qui sera ajoutée en JS pour ouvrir le menu */
  .nav-links.nav-active {
    right: 0;
  }

  /* Animations pour transformer le burger en croix (X) quand il est ouvert */
  .burger-menu.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
    background-color: var(--accent-color); /* Devient couleur néon */
  }

  .burger-menu.toggle .line2 {
    opacity: 0;
  }

  .burger-menu.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
    background-color: var(--accent-color);
  }

  /* Ajustement de ton titre "PORTFOLIO" pour qu'il rentre sur mobile */
  .portfolio {
    font-size: 18vw;
  }
}

/* Grille de projets (Exposition) */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 50px;
}

.project-card {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  animation: fadeIn 0.6s ease forwards;
}

.project-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #ffffff;
  overflow: hidden;
  border: 1px solid var(--grid-color); /* Le cadre de la peinture */
}

body.dark-mode .project-frame {
  background: #ffffff;
}

.project-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: 700;
  transition: transform 0.5s ease;
}

.project-image-placeholder img {
  width: 100%;
}

/* Effet Overlay (Dopamine / Récompense) */
.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-overlay span {
  background-color: #ffffff;
  
  padding: 10px 20px;
  border-radius: 50px;
  
  transition: transform 0.3s ease;
}

.project-card:hover .project-overlay {
  opacity: 1;
}
.project-card:hover .project-overlay span {
  transform: translateY(0);
}
.project-card:hover .project-image-placeholder {
  transform: scale(1.1);
}

.project-info {
  /*margin-top: 20px;*/
  border-top: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;

  padding: 15px;
}

.project-info h3 {
  font-size: 1.4rem;
  margin-bottom: 5px;
}
.project-info p {
  opacity: 0.6;
  font-size: 0.9rem;
  text-transform: uppercase;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}