:root {
  --color-black: #080808;
  --color-white: #ffffff;
  --color-gold: #e3a514; /* Couleur d'origine: rgba(227, 165, 20, 1) */
  --color-gray: #fcfcfc;
  --font-primary: 'Montserrat', sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  position: relative;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  font-family: var(--font-primary);
  background-color: var(--color-white);
  color: var(--color-black);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Utilities */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 2rem;
}
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mt-4 { margin-top: 4rem; }
.bg-gray { background-color: var(--color-gray); }

/* Typography */
h1, h2, h3 { font-weight: 500; margin-top: 0; }
.accent-title {
  color: var(--color-gold);
  font-weight: 600;
  font-size: 2rem;
  margin-bottom: 0.5rem;
  letter-spacing: 1px;
}
.sub-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.highlight-title {
  color: var(--color-gold);
  font-size: 1.5rem;
  font-weight: 500;
}
.section-title {
  font-size: 2.2rem;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.text-content p {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: #333;
}
.large-text p {
  font-size: 1.25rem;
}

.custom-list {
  list-style: none;
  padding: 0;
}
.custom-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.8rem;
  font-size: 1.1rem;
}
.custom-list li::before {
  content: '•';
  color: var(--color-gold);
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-sizing: border-box;
  box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}
.logo-container { height: 60px; }
.logo { height: 100%; object-fit: contain; mix-blend-mode: multiply; }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-black);
}
.mobile-menu-btn i {
  width: 28px;
  height: 28px;
}

.nav {
  display: flex;
  align-items: center;
}
.nav a {
  text-decoration: none;
  color: var(--color-black);
  margin-left: 2rem;
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.3s;
}
.nav a:hover {
  color: var(--color-gold);
}
.lang-switch {
  margin-left: 2rem;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-black);
}
.lang-switch a {
  margin-left: 0.5rem;
  color: #999;
}
.lang-switch span {
  margin-right: 0.5rem;
}
.lang-switch a:hover {
  color: var(--color-gold);
}
.lang-switch .active {
  font-weight: 700;
  color: var(--color-black);
}
.btn {
  padding: 0.8rem 1.8rem;
  border: 2px solid var(--color-black);
  background: transparent;
  color: var(--color-black);
  border-radius: 30px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
  cursor: pointer;
  display: inline-block;
  font-size: 0.95rem;
}
.btn:hover {
  background: var(--color-black);
  color: var(--color-white) !important;
}
.btn-primary {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-black);
  border-color: var(--color-black);
}

/* Hero Mobile-First Section */
.hero-mobile-first {
  position: relative;
  background-color: var(--color-white);
  padding-top: 60px; /* espace pour le header sticky */
  display: flex;
  flex-direction: column;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  height: 55vh; 
  min-height: 350px;
}

.hero-image-wrapper img,
.hero-image-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.hero-fade-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 150px;
  background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 10;
  padding: 0 1.5rem 2rem 1.5rem;
  text-align: center; 
  margin-top: 0; /* retiré le margin négatif pour éviter de chevaucher le fondu */
}

.hero-logo {
  max-width: 180px;
  margin: 1.5rem auto 1.5rem auto;
  display: block;
  mix-blend-mode: multiply; /* Rend le fond blanc du logo transparent ! */
}

.hero-title {
  font-family: 'Playfair Display', serif;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-title .text-black {
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--color-black);
  display: block;
}

.hero-title .text-gold {
  font-size: 2rem;
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold);
  display: block;
  margin-top: 0.5rem;
}

.hero-desc {
  font-size: 1.1rem;
  color: #444;
  line-height: 1.5;
  font-weight: 400;
  margin: 0 auto 2rem auto;
  max-width: 400px;
}

/* Header transition (ligne dorée et texte) */
.header-transition {
  position: relative;
  width: 100%;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 1rem 1rem 1rem; /* Dégradé plus haut, texte plus bas */
  background: var(--color-white);
}

.gold-line {
  flex: 1;
  height: 1px;
  background-color: var(--color-gold);
  max-width: 80px; /* plus petit sur mobile */
  margin: 0 0.8rem;
}

.transition-text {
  text-align: center;
  color: #333;
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0;
}

/* Desktop layout (min-width: 900px) */
@media (min-width: 900px) {
  .hero-mobile-first {
    min-height: 95vh;
    padding-top: 80px;
    display: block; /* laissons le container et l'image absolute gérer le layout */
  }
  
  .hero-image-wrapper {
    width: 60%;
    height: 100%;
    position: absolute;
    top: 0;
    right: 0;
    z-index: 1;
    /* On desktop, fade vers la gauche comme sur le flyer original */
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 25%);
    mask-image: linear-gradient(to right, transparent 0%, black 25%);
  }
  
  .hero-image-wrapper img,
  .hero-image-wrapper video {
    object-position: top right; /* Aligne la vidéo sur la droite pour voir les arbres */
  }
  
  .hero-fade-bottom {
    display: none; 
  }
  
  .hero-content {
    width: 50%;
    padding: 0;
    margin-top: 0;
    text-align: left;
  }

  .hero-logo { 
    margin: 4rem 0 2rem 0; /* Marge augmentée au-dessus du logo sur ordinateur */
    max-width: 220px; 
  }
  
  .hero-title .text-black { font-size: 3.8rem; }
  .hero-title .text-gold { font-size: 3.3rem; }
  .hero-desc { font-size: 1.25rem; max-width: 450px; margin: 0 0 2rem 0;}
  
  .header-transition {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 12rem 0 0 0; /* Pousse le texte tout en bas, et allonge le dégradé */
    background: linear-gradient(to top, rgba(255,255,255,1) 30%, rgba(255,255,255,0));
  }
  .gold-line {
    max-width: 200px;
    margin: 0 1.5rem;
  }
  .transition-text {
    font-size: 1.1rem;
    letter-spacing: 2px;
  }
}

/* Layouts */
.split-section {
  padding: 6rem 0;
}
.split-section:first-of-type {
  padding-top: 10rem;
}
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.split-image img {
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  width: 100%;
}

/* Values section */
.values {
  padding: 5rem 0;
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.value-item {
  position: relative;
  padding: 2rem;
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  overflow: hidden; /* Coupe le faisceau tournant aux bords arrondis */
}

/* Le faisceau doré qui tourne (liseré) */
.value-item::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  /* Un rayon solide qui trace le bord, pas un gradient doux */
  background: conic-gradient(transparent 0deg, var(--color-gold) 0deg 90deg, transparent 90deg);
  animation: spin-ray 2s linear infinite;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}

/* Le masque blanc intérieur qui cache le faisceau sauf sur 2px au bord */
.value-item::after {
  content: "";
  position: absolute;
  inset: 2px; /* Épaisseur du liseré */
  background: var(--color-white);
  border-radius: 10px; /* 12px - 2px */
  z-index: 1;
}

/* Le contenu doit rester au-dessus du masque blanc */
.value-item > * {
  position: relative;
  z-index: 2;
}

/* Hover : effet loupe et ombre colorée */
.value-item:hover {
  transform: scale(1.05) translateY(-5px);
  box-shadow: 0 20px 40px rgba(227, 165, 20, 0.2); /* Ombre dorée d'arrière-plan */
}

/* Apparition du liseré */
.value-item:hover::before {
  opacity: 1;
}

@keyframes spin-ray {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.value-icon {
  color: var(--color-gold);
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.value-item:hover .value-icon {
  transform: scale(1.15) rotate(5deg);
}

.value-item h3 {
  font-size: 1.2rem;
  margin: 0;
  letter-spacing: 1px;
}

/* Services Bento Premium Section */
.services-premium {
  background-color: #fafafa; /* Gris très clair pour contraster avec les cartes */
  color: var(--color-black);
  padding: 8rem 0;
}

.services-premium .section-title {
  color: var(--color-black);
}

.services-bento {
  display: grid;
  grid-template-columns: 1fr; /* Mobile-first: 1 colonne */
  gap: 2.5rem;
}

@media (min-width: 900px) {
  .services-bento {
    grid-template-columns: 1fr 1fr; /* Desktop: 2x2 */
  }
}

.bento-card {
  background: #2a2a2a; /* Gris foncé chic, pas de noir absolu */
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.bento-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(227, 165, 20, 0.15);
  border-color: rgba(227, 165, 20, 0.3);
}

.bento-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
}

.bento-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease, filter 0.8s ease;
  filter: grayscale(80%) brightness(0.8);
}

.bento-card:hover .bento-image img {
  transform: scale(1.08);
  filter: grayscale(0%) brightness(1);
}

.bento-content {
  padding: 2.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.bento-content h3 {
  font-size: 1.6rem;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag {
  background: rgba(255, 255, 255, 0.05);
  color: #ccc;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  transition: all 0.3s ease;
}

.bento-card:hover .tag {
  background: rgba(227, 165, 20, 0.1);
  color: var(--color-gold);
  border-color: rgba(227, 165, 20, 0.4);
}

/* Contact */
.contact {
  padding: 6rem 0;
  background-color: var(--color-black);
  color: var(--color-white);
  text-align: center;
}

/* Footer */
footer {
  background-color: #111;
  color: rgba(255,255,255,0.4);
  text-align: center;
  padding: 2rem 0;
  font-size: 0.9rem;
}

/* Fallback for browsers without scroll-driven animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Modern CSS Scroll-driven animations */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
      animation: fade-in-up auto ease-out both;
      animation-timeline: view(block);
      animation-range: entry 5% cover 25%;
    }
    @keyframes fade-in-up {
      from {
        opacity: 0;
        transform: translateY(40px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
  }
}

.mobile-break {
  display: none;
}

/* Responsive */
@media (max-width: 900px) {
  .header-transition {
    padding-top: 2rem;
  }
  .split-section {
    padding: 3.5rem 0;
  }
  .split-section:first-of-type {
    padding-top: 4rem;
  }
  .values {
    padding: 3.5rem 0;
  }
  .value-item {
    padding: 1.2rem;
  }
  .services-premium {
    padding: 4rem 0;
  }
  .mobile-break {
    display: block;
  }

  .mobile-menu-btn {
    display: block;
  }
  .nav { 
    display: none; 
    position: fixed;
    top: 92px; /* hauteur header */
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    padding: 2rem 0;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    z-index: 999;
  }
  .nav.active {
    display: flex;
  }
  .nav a {
    margin: 1rem 0;
    font-size: 1.2rem;
  }
  .lang-switch {
    margin: 1rem 0;
  }

  .split-grid { grid-template-columns: 1fr; gap: 2rem; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .split-grid.reverse-mobile {
    display: flex;
    flex-direction: column-reverse;
  }
}
@media (max-width: 500px) {
  .values-grid { grid-template-columns: 1fr; }
}