/* ============================================================
   RESET
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ============================================================
   VARIABLES
   ============================================================ */
:root {
  --color-bg: #0d0d0d;
  --color-bg-alt: #161616;
  --color-gold: #c9a050;
  --color-gold-light: #e2c07a;
  --color-gold-dark: #8a6e35;
  --color-text: #f0ede8;
  --color-text-muted: #a09890;
  --color-border: #2a2520;

  --font-display: "Cormorant Garant", Georgia, serif;
  --font-body: "Lato", Arial, sans-serif;

  --section-padding: 100px;
  --container-max: 1100px;
  --container-px: 24px;
}

/* ============================================================
   BASE
   ============================================================ */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.7;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1,
h2 {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  line-height: 1.2;
}

h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}
h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
}
h3 {
  font-size: 1.3rem;
}
h4 {
  font-size: 1.1rem;
}

p {
  color: var(--color-text);
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

.tagline {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.section {
  padding: var(--section-padding) 0;
}

.section--alt {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-gold-dark);
  border-bottom: 1px solid var(--color-gold-dark);
}

/* ============================================================
   COMPONENTS
   ============================================================ */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  background: transparent;
  transition:
    background 0.3s,
    color 0.3s;
}

.btn:hover {
  background: var(--color-gold);
  color: var(--color-bg);
}

.divider {
  display: block;
  width: 60px;
  height: 2px;
  background-color: var(--color-gold);
  margin: 20px 0;
}

.divider--center {
  margin: 20px auto;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-gold-dark);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
  height: 70px;
}

.nav-logo img {
  height: 50px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-gold);
}

.nav-links a.active {
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 2px;
}

/* Hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-gold);
  transition:
    transform 0.3s,
    opacity 0.3s;
}

/* Mobile overlay menu */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: var(--color-bg);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.nav-overlay a {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.8rem;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.nav-overlay a:hover,
.nav-overlay a.active {
  color: var(--color-gold);
}

.nav-overlay-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: var(--color-gold);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

nav.nav-open .nav-overlay {
  display: flex;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-gold-dark);
  padding: 60px 0 40px;
}

.footer-nav {
  background-color: var(--color-bg-alt);
  border-bottom: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand img {
  height: 44px;
  width: auto;
  margin-bottom: 16px;
}

.footer-brand p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.footer-nav h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 20px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--color-gold);
}

.footer-contact h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 20px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-gold);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   HERO (plein écran — index.html)
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 var(--container-px);
}

.hero-content h1 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  letter-spacing: 0.15em;
  margin-bottom: 0;
}

.hero-content .divider {
  margin: 24px auto;
}

.hero-content .tagline {
  margin-bottom: 40px;
}

/* ============================================================
   HERO DE PAGE (autres pages — fond alt, pas d'image)
   ============================================================ */
.page-hero {
  background-color: var(--color-bg-alt);
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--color-gold-dark);
}

.page-hero h1 {
  margin-bottom: 0;
}

.page-hero .tagline {
  margin-top: 16px;
}

/* ============================================================
   SECTION NOTRE HISTOIRE
   ============================================================ */
.histoire-grid {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: 64px;
  align-items: center;
}

.histoire-text h2 {
  margin-bottom: 8px;
}

.histoire-text p {
  color: var(--color-text-muted);
  margin-top: 24px;
}

.histoire-text .link-text {
  display: inline-block;
  margin-top: 32px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  border-bottom: 1px solid var(--color-gold-dark);
  padding-bottom: 4px;
  transition:
    border-color 0.2s,
    color 0.2s;
}

.histoire-text .link-text:hover {
  color: var(--color-gold-light);
  border-color: var(--color-gold);
}

.histoire-image img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

/* ============================================================
   CARTES SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.service-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 40px 32px;
  transition: border-color 0.3s;
}

.service-card:hover {
  border-color: var(--color-gold);
}

.service-card-icon {
  color: var(--color-gold);
  margin-bottom: 20px;
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.service-card .link-text {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  border-bottom: 1px solid var(--color-gold-dark);
  padding-bottom: 3px;
  transition:
    border-color 0.2s,
    color 0.2s;
}

.service-card .link-text:hover {
  color: var(--color-gold-light);
  border-color: var(--color-gold);
}

/* ============================================================
   SECTION CTA FINAL
   ============================================================ */
.cta-section {
  text-align: center;
}

.cta-section h2 {
  max-width: 700px;
  margin: 0 auto 40px;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

/* ============================================================
   ENGAGEMENTS (achat-revente)
   ============================================================ */
.engagements-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.engagement-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 28px 24px;
  border: 1px solid var(--color-border);
}

.engagement-item svg {
  flex-shrink: 0;
  color: var(--color-gold);
  margin-top: 2px;
}

.engagement-item p {
  margin: 0;
  color: var(--color-text);
}

/* ============================================================
   GALERIE (achat-revente)
   ============================================================ */
.gallery-section h2 {
  margin-bottom: 8px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.gallery-item {
  overflow: hidden;
  aspect-ratio: 1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.03);
}

/* ============================================================
   PRESTATIONS SAV
   ============================================================ */
.prestations-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.prestation-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 32px 28px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: border-color 0.3s;
}

.prestation-item:hover {
  border-color: var(--color-gold);
}

.prestation-item svg {
  flex-shrink: 0;
  color: var(--color-gold);
  margin-top: 2px;
}

.prestation-item-text h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.prestation-item-text p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ============================================================
   ILLUSTRATION SAV
   ============================================================ */
.illustration-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.illustration-grid img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

/* ============================================================
   EXPERTISE
   ============================================================ */
.expertise-grid {
  display: grid;
  grid-template-columns: 45% 55%;
  gap: 64px;
  align-items: center;
}

.expertise-image img {
  width: 100%;
  height: 520px;
  object-fit: cover;
}

.expertise-text h2 {
  margin-bottom: 8px;
}

.expertise-text p {
  color: var(--color-text-muted);
  margin-top: 24px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-top: 0;
}

.contact-info h3 {
  margin-bottom: 32px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item svg {
  flex-shrink: 0;
  color: var(--color-gold);
  margin-top: 2px;
}

.contact-item-text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.contact-item-text a {
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.contact-item-text a:hover {
  color: var(--color-gold);
}

.contact-cta {
  margin-top: 40px;
}

.contact-social h3 {
  margin-bottom: 32px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.social-links {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.social-link svg {
  color: var(--color-gold);
  transition: color 0.2s;
}

.social-link:hover {
  color: var(--color-gold);
}

/* ============================================================
   ANIMATIONS (fade-in via IntersectionObserver)
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in:nth-child(2) {
  transition-delay: 0.1s;
}
.fade-in:nth-child(3) {
  transition-delay: 0.2s;
}
.fade-in:nth-child(4) {
  transition-delay: 0.3s;
}
.fade-in:nth-child(5) {
  transition-delay: 0.4s;
}
.fade-in:nth-child(6) {
  transition-delay: 0.5s;
}

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================================
   RESPONSIVE — Tablette (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }

  .histoire-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .histoire-image img {
    height: 360px;
  }

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

  .expertise-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .expertise-image img {
    height: 380px;
  }

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

  .illustration-grid img {
    height: 240px;
  }
}

/* ============================================================
   RESPONSIVE — Mobile (< 768px)
   ============================================================ */
@media (max-width: 767px) {
  :root {
    --section-padding: 60px;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero-content h1 {
    font-size: clamp(1.8rem, 8vw, 3rem);
  }

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

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

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

  .illustration-grid img {
    height: 220px;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
}

/* ============================================================
   RESPONSIVE — Mobile S (< 480px)
   ============================================================ */
@media (max-width: 479px) {
  body {
    font-size: 15px;
  }

  .btn {
    padding: 12px 28px;
    font-size: 0.8rem;
  }

  .page-hero {
    padding: 60px 0 44px;
  }

  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
}