/* =========================================================
   FONCAGE.COM – styles.css
   Index page + Header + Footer
   ========================================================= */

/* ---------- 1. CSS VARIABLES ---------- */
:root {
  --color-primary:        #c0102a;
  --color-primary-hover:  #e01030;
  --color-dark:           #111111;
  --color-darker:         #0a0a0a;
  --color-light:          #f5f5f5;
  --color-white:          #ffffff;
  --color-text:           #222222;
  --color-text-muted:     #666666;
  --color-border:         #dddddd;
  --color-bg-section:     #f8f8f6;

  --font-heading: 'Oswald', sans-serif;
  --font-body:    'Lato', sans-serif;
  --font-nav:     'Montserrat', sans-serif;

  --container-max: 1200px;
  --section-py:    80px;
  --header-h:      72px;

  --transition:    0.3s ease;
  --shadow-card:   0 4px 20px rgba(0,0,0,0.12);
}

/* ---------- 2. RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 3. ACCESSIBILITÉ ---------- */

/* Skip link */
.skip-link {
  position: absolute;
  top: -48px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 18px;
  font-family: var(--font-nav);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus { top: 0; }

/* Focus indicators globaux */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ---------- 4. HEADER ---------- */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  background: var(--color-darker);
  border-bottom: 2px solid var(--color-primary);
  transition: background var(--transition), box-shadow var(--transition);
}

#site-header.scrolled {
  background: rgba(10,10,10,0.97);
  box-shadow: 0 2px 16px rgba(0,0,0,0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}

/* Logo */
.logo a { display: flex; align-items: center; }

.logo-text {
  font-family: 'Oswald', sans-serif;
  font-style: italic;
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.logo-slash, .logo-f { color: var(--color-primary); }
.logo-rest { color: var(--color-white); }

/* Nav wrapper */
#main-nav {
  display: flex;
  align-items: center;
  flex: 1;               /* prend tout l'espace disponible */
  justify-content: center; /* centre les éléments nav */
  gap: 8px;
}

/* Nav links — centrés */
.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex: 1;
}

.nav-links li a {
  font-family: var(--font-nav);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #cccccc;
  padding: 8px 14px;
  transition: color var(--transition);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.nav-links li a:hover,
.nav-links li a.active {
  color: var(--color-white);
  border-bottom-color: var(--color-primary);
}

/* CTA bouton */
.btn-consultation {
  font-family: var(--font-nav);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 20px;
  border: 2px solid var(--color-primary);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.btn-consultation:hover {
  background: transparent;
  color: var(--color-primary);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: 16px;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ---------- 5. HERO SECTION ---------- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
}

/* FIX : hero-bg couvre tout l'espace */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;     /* nécessaire pour que l'animation zoom reste contenue */
}

/* FIX : l'image couvre bien tout le hero */
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: heroZoom 10s ease-out forwards;
  will-change: transform;
}

@keyframes heroZoom {
  from { transform: scale(1.12); }
  to   { transform: scale(1.0);  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0,0,0,0.72) 0%,
    rgba(0,0,0,0.45) 60%,
    rgba(192,16,42,0.18) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding-top: 40px;
  padding-bottom: 80px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeUp 0.9s 0.3s both;
}

.hero-text {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.87);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.8;
  animation: fadeUp 0.9s 0.55s both;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  animation: fadeUp 0.9s 0.75s both;
}

/* ---------- 6. BOUTONS ---------- */
.btn-primary {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 14px 28px;
  border: 2px solid var(--color-primary);
  transition: background var(--transition), color var(--transition);
}
.btn-primary:hover {
  background: var(--color-white);
  color: var(--color-primary);
}
.btn-primary.large { padding: 18px 36px; font-size: 0.96rem; }

.btn-secondary {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--color-white);
  color: var(--color-dark);
  padding: 14px 28px;
  border: 2px solid var(--color-white);
  transition: background var(--transition), color var(--transition);
}
.btn-secondary:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

.btn-outline {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: transparent;
  color: var(--color-primary);
  padding: 13px 28px;
  border: 2px solid var(--color-primary);
  transition: background var(--transition), color var(--transition);
  margin-top: 28px;
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ---------- 7. SECTION BG IMAGE ---------- */
.section-bg-image {
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: var(--section-py) 0;
}

.section-bg-overlay {
  position: absolute;
  inset: 0;
  background: rgba(245,242,235,0.88);
}
.section-bg-overlay.dark-overlay {
  background: rgba(10,10,10,0.72);
}

/* ---------- 8. TITRES DE SECTIONS ---------- */
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-dark);
  line-height: 1.2;
  margin-bottom: 20px;
}
.section-title.light { color: var(--color-white); }

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 48px;
}

.section-header-centered {
  text-align: center;
  margin-bottom: 8px;
}

/* ---------- 9. SECTION 1 – INTRO ---------- */
#section-intro { padding: var(--section-py) 0; }

.section-inner { position: relative; z-index: 2; }

.s1-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.s1-image figure {
  position: relative;
  overflow: hidden;
  border: 4px solid var(--color-white);
  box-shadow: var(--shadow-card);
}
.s1-image img {
  width: 100%;
  transition: transform 0.6s ease;
}
.s1-image figure:hover img { transform: scale(1.04); }

.s1-image figcaption {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 10px 12px;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  font-style: italic;
}

.s1-content .section-title {
  position: relative;
  padding-left: 20px;
}
.s1-content .section-title::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 4px;
  background: var(--color-primary);
}
.s1-content p {
  font-size: 1rem;
  color: #444;
  line-height: 1.8;
}

/* ---------- 10. SECTION 2 – ÉTAPES ---------- */
#section-etapes {
  padding: var(--section-py) 0;
  background: var(--color-bg-section);
}

.etapes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 16px;
}

.etape-card {
  overflow: hidden;
  border: 3px solid var(--color-white);
  box-shadow: var(--shadow-card);
  background: var(--color-dark);
  cursor: default;
}

.etape-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.etape-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6);
  transition: transform 0.5s ease, filter 0.5s ease;
}
.etape-card:hover .etape-img-wrap img {
  transform: scale(1.06);
  filter: brightness(0.85);
}

.etape-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding: 24px 16px;
  text-align: center;
}

.etape-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(255,255,255,0.25);
  line-height: 1;
  margin-bottom: 6px;
  transition: color var(--transition);
}
.etape-card:hover .etape-num { color: var(--color-primary); }

.etape-label {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-white);
}

.etape-caption {
  font-size: 0.8rem;
  color: #aaa;
  padding: 10px 14px;
  background: #1a1a1a;
  font-style: italic;
  line-height: 1.5;
}

/* ---------- 11. SECTION 3 – GUIDE FASCICULE 70 ---------- */
#section-guide {
  padding: calc(var(--section-py) * 1.4) 0;
  text-align: center;
}
.section-guide-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
}
.guide-text {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.84);
  line-height: 1.85;
  margin-bottom: 40px;
}
.btn-guide {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: transparent;
  color: var(--color-white);
  padding: 14px 36px;
  border: 2px solid var(--color-white);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.btn-guide:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* ---------- 12. SECTION 4 – CTA ---------- */
#section-cta {
  padding: var(--section-py) 0;
  background: var(--color-dark);
  color: var(--color-white);
}
.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
}
.cta-text .section-title { color: var(--color-white); }
.cta-text p { color: #bbb; margin-bottom: 24px; line-height: 1.8; }
.cta-services-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}
.cta-services-list li {
  font-size: 0.88rem;
  color: #aaa;
  padding-left: 18px;
  position: relative;
}
.cta-services-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}
.cta-action { flex-shrink: 0; }

/* ---------- 13. FOOTER ---------- */
#site-footer {
  background: #0d0d0d;
  color: #aaa;
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid #222;
}
.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: #888;
  margin: 16px 0 20px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border: 1px solid #333;
  font-size: 0.78rem;
  font-weight: 700;
  color: #888;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.social-link:hover {
  border-color: var(--color-primary);
  color: var(--color-white);
  background: var(--color-primary);
}
.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-white);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}
.footer-links li { margin-bottom: 10px; }
.footer-links li a {
  font-size: 0.87rem;
  color: #888;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links li a:hover {
  color: var(--color-white);
  padding-left: 6px;
}
.footer-bottom {
  text-align: center;
  padding: 20px 24px;
  font-size: 0.8rem;
  color: #555;
  border-top: 1px solid #1a1a1a;
}

/* ---------- 14. ANIMATIONS ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0);    }
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- 15. RESPONSIVE ---------- */

/* Tablette */
@media (max-width: 1024px) {
  .s1-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta-inner { grid-template-columns: 1fr; gap: 40px; }
  .cta-action { text-align: left; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

/* Mobile */
@media (max-width: 768px) {
  :root { --section-py: 56px; --header-h: 64px; }

  /* Masquer nav desktop */
  .nav-links,
  .btn-consultation { display: none; }

  /* Afficher hamburger */
  .hamburger { display: flex; }

  /* ── Menu mobile overlay ── */
  #main-nav.mobile-open {
    position: static;
  }

  #main-nav.mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--color-darker);
    padding: 24px 24px 32px;
    gap: 0;
    border-top: 2px solid var(--color-primary);
    z-index: 999;
    /* FIX : hauteur max + scroll si contenu trop long */
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  #main-nav.mobile-open .nav-links li a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #222;
    font-size: 1rem;
    text-align: center;
    border-bottom-color: transparent; /* annule border-bottom nav desktop */
    border-bottom: 1px solid #222;
  }

  #main-nav.mobile-open .btn-consultation {
    display: block;
    text-align: center;
    margin: 20px 24px 0;
    position: fixed;
    /* placer en bas du menu mobile */
    bottom: 0;
    left: 0; right: 0;
    z-index: 1000;
    border-radius: 0;
    padding: 16px 24px;
  }

  /* Corrections layout mobile */
  .etapes-grid       { grid-template-columns: 1fr; }
  .cta-services-list { grid-template-columns: 1fr; }
  .footer-grid       { grid-template-columns: 1fr; gap: 32px; }
  .hero-buttons      { flex-direction: column; align-items: flex-start; }
  .section-bg-image  { background-attachment: scroll; }
}

@media (max-width: 480px) {
  .hero-title    { font-size: 1.75rem; }
  .section-title { font-size: 1.35rem; }
}