/* ------------------------------------------------------
   VARIABLES & RESET
------------------------------------------------------ */
:root {
  --font-main: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-title: "Inter", "Helvetica Neue", Arial, sans-serif;

  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #666;
  --color-primary: #000000;
  --color-secondary: #e5e5e5;
  --color-accent: #ff4d4d;

  --container-width: 1200px;
  --transition: 0.35s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

a:hover {
  opacity: 0.7;
}

.container {
  width: 90%;
  max-width: var(--container-width);
  margin: auto;
}
/* ------------------------------------------------------
   HEADER
------------------------------------------------------ */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid #eee;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo-img {
  height: 48px;
  width: auto;
}

/* ------------------------------------------------------
   NAVIGATION (DESKTOP)
------------------------------------------------------ */
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list {
  display: flex;
  gap: 32px;
  align-items: center;
}

.btn-nav {
  padding: 10px 18px;
  border: 1px solid var(--color-text);
  border-radius: 4px;
}

/* Bouton burger (desktop = caché) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 26px;
  height: 3px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ------------------------------------------------------
   NAVIGATION (MOBILE)
------------------------------------------------------ */
@media (max-width: 768px) {

  /* Menu mobile */
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    padding: 80px 30px 40px;
    gap: 20px;
    transition: var(--transition);
    box-shadow: -4px 0 12px rgba(0,0,0,0.1);

    /* ✔️ Permet le scroll vertical dans le menu */
    overflow-y: auto;
  }

  /* Menu ouvert */
  .main-nav.nav-open {
    right: 0;
  }

  /* Liste verticale */
  .nav-list {
    flex-direction: column;
    gap: 24px;
    width: 100%;
  }

  /* Bouton burger visible */
  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 2000; /* ✔️ reste cliquable au-dessus du menu */
  }

  .nav-toggle-bar {
    width: 28px;
    height: 3px;
    background: var(--color-text);
    transition: var(--transition);
  }

  /* ✔️ Animation du bouton quand le menu est ouvert */
  .nav-toggle.nav-open .nav-toggle-bar:nth-child(1) {
    transform: rotate(45deg) translateY(8px);
  }

  .nav-toggle.nav-open .nav-toggle-bar:nth-child(2) {
    transform: rotate(-45deg) translateY(-8px);
  }
}

/* ------------------------------------------------------
   HERO
------------------------------------------------------ */
.hero {
  padding-top: 160px;
  padding-bottom: 100px;
  display: flex;
  align-items: center;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.hero-cta {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 26px;
  border-radius: 4px;
  display: inline-block;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--color-accent);
}

.btn-secondary {
  border: 1px solid var(--color-text);
  padding: 14px 26px;
  border-radius: 4px;
}

.hero-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* ------------------------------------------------------
   SECTIONS GÉNÉRIQUES
------------------------------------------------------ */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.4rem;
  margin-bottom: 10px;
}

/* ------------------------------------------------------
   SERVICES
------------------------------------------------------ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.service-card {
  padding: 30px;
  border: 1px solid #eee;
  border-radius: 8px;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary);
}

/* ------------------------------------------------------
   GALERIES (GRILLE CLASSIQUE)
------------------------------------------------------ */
.gallery-tabs {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap; /* ✔️ retour à la ligne */
}

.gallery-tab {
  padding: 10px 20px;
  border: 1px solid var(--color-text);
  background: none;
  cursor: pointer;
  border-radius: 4px;
  transition: var(--transition);
  flex: 1 1 calc(50% - 20px); /* ✔️ 2 par ligne sur mobile */
  text-align: center;
}

.gallery-tab.active,
.gallery-tab:hover {
  background: var(--color-primary);
  color: #fff;
}

.gallery-grid {
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.gallery-active {
  display: grid;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
}

.gallery-item img {
  transition: var(--transition);
}

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

.gallery-item figcaption {
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* ------------------------------------------------------
   PROCESS
------------------------------------------------------ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 30px;
}

.process-step {
  text-align: center;
}

.step-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  margin-bottom: 10px;
}

/* ------------------------------------------------------
   CLIENTS
------------------------------------------------------ */
.clients-logos {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 60px;
}

.client-logo {
  padding: 20px 40px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 1.1rem;

  /* ✔️ Ajout pour centrer le logo même avec un lien */
  display: flex;
  align-items: center;
  justify-content: center;
}

.client-logo a {
  display: inline-block; /* ✔️ Empêche le lien de s'étirer */
}

.client-logo img {
  max-width: 120px;
  height: auto;
  display: block;
  filter: grayscale(100%);
  opacity: 0.8;
  transition: 0.3s ease;
}

.client-logo img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* Témoignages */
.testimonials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.testimonial-card {
  padding: 30px;
  border: 1px solid #eee;
  border-radius: 8px;
  font-style: italic;
}

/* ------------------------------------------------------
   CONTACT
------------------------------------------------------ */
.contact-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
}

.contact-form .form-group {
  margin-bottom: 20px;
}

.contact-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: var(--font-main);
}

/* ------------------------------------------------------
   FOOTER
------------------------------------------------------ */
.site-footer {
  padding: 40px 0;
  background: #f8f8f8;
  border-top: 1px solid #eee;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-nav {
  display: flex;
  gap: 20px;
}

/* ------------------------------------------------------
   ANIMATIONS AU SCROLL
------------------------------------------------------ */
.section-animated {
  opacity: 0;
  transform: translateY(40px);
  transition: 0.8s ease;
}

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

/* ------------------------------------------------------
   RESPONSIVE
------------------------------------------------------ */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 768px) {

  /* Menu mobile */
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    padding: 40px;
    gap: 30px;
    transition: var(--transition);
    box-shadow: -4px 0 12px rgba(0,0,0,0.1);
  }

  .main-nav.nav-open {
    right: 0;
  }

  .nav-toggle {
    display: flex;
  }

  /* Layouts */
  .services-grid,
  .gallery-grid,
  .process-steps,
  .testimonials,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .clients-logos {
    flex-direction: column;
    align-items: center;
  }

  /* ✔️ Hero corrigé : menu visible immédiatement */
  .hero {
    padding-top: 120px;
  }
}