/* ============================================================
   C.I.M 3D — Feuille de style principale
   Couleurs modifiables ici :
   ============================================================ */
:root {
  --vert: #2e9e5b;          /* couleur principale (accent) */
  --vert-fonce: #217a45;
  --vert-clair: #e6f4ec;
  --encre: #1d2b26;         /* texte principal */
  --gris: #5c6b64;          /* texte secondaire */
  --fond: #fafcfb;
  --fond-alt: #f0f6f2;
  --blanc: #ffffff;
  --ombre: 0 6px 24px rgba(29, 43, 38, .08);
  --radius: 14px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--encre);
  background: var(--fond);
  line-height: 1.65;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

a { color: var(--vert-fonce); }

h1, h2, h3 { line-height: 1.2; }

/* ============ Header / nav ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 252, 251, .97);
  border-bottom: 1px solid #e3ece7;
}

.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.3rem; font-weight: 800; text-decoration: none;
  color: var(--encre); letter-spacing: .5px;
}
.logo-mark { color: var(--vert); }
.accent { color: var(--vert); }

.nav-links {
  display: flex; align-items: center; gap: 28px; list-style: none;
}
.nav-links a:not(.btn) {
  text-decoration: none; color: var(--encre); font-weight: 600;
  padding-bottom: 2px; border-bottom: 2px solid transparent;
}
.nav-links a:not(.btn):hover,
.nav-links a.active:not(.btn) { border-bottom-color: var(--vert); }

.nav-toggle {
  display: none; background: none; border: none; font-size: 1.6rem;
  color: var(--encre); cursor: pointer;
}

/* ============ Boutons ============ */
.btn {
  display: inline-block; background: var(--vert); color: #fff !important;
  padding: 13px 28px; border-radius: 999px; text-decoration: none;
  font-weight: 700; border: 2px solid var(--vert);
  transition: transform .15s, background .15s; cursor: pointer;
  font-size: 1rem;
}
.btn:hover { background: var(--vert-fonce); border-color: var(--vert-fonce); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--vert-fonce) !important; }
.btn-outline:hover { background: var(--vert-clair); }
.btn-small { padding: 8px 18px; font-size: .92rem; }
.btn-light { background: #fff; color: var(--vert-fonce) !important; border-color: #fff; }
.btn-light:hover { background: var(--vert-clair); border-color: var(--vert-clair); }

/* ============ Hero (deux colonnes : logo 70% / texte sur fond noir 30%) ============ */
.hero { display: flex; align-items: stretch; min-height: 540px; }

.hero-left {
  flex: 0 0 60%; max-width: 60%;
  display: flex; align-items: center; justify-content: center;
  padding: 60px 48px;
  background: linear-gradient(0deg, var(--fond) 10%, var(--vert-clair));
}
.hero-logo { width: 100%; max-width: 640px; height: auto; display: block; }

.hero-right {
  flex: 0 0 40%; max-width: 40%;
  display: flex; flex-direction: column; justify-content: center;
  padding: 60px 44px;
  background: var(--encre); color: #fff;
}
.hero-kicker {
  text-transform: uppercase; letter-spacing: 3px; font-size: .82rem;
  font-weight: 700; color: #8fdcae; margin-bottom: 14px;
}
.hero-right h1 { font-size: clamp(2rem, 3vw, 2.8rem); margin-bottom: 20px; color: #fff; }
.hero-right .accent { color: #5fbf86; }
.hero-text { font-size: 1.08rem; color: #cfe0d7; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-right .btn-outline { color: #fff !important; border-color: #fff; }
.hero-right .btn-outline:hover { background: rgba(255, 255, 255, .14); }

/* ============ Bandeau valeurs ============ */
.strip { background: var(--encre); color: #fff; padding: 18px 0; }
.strip-items {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.strip-item { font-size: .98rem; }
.strip-item strong { color: #8fdcae; }

/* ============ Sections ============ */
.section { padding: 80px 0; }
.section-alt { background: var(--fond-alt); }
.section-title { font-size: 2rem; text-align: center; margin-bottom: 12px; }
.section-sub {
  text-align: center; color: var(--gris); max-width: 640px;
  margin: 0 auto 48px;
}

/* ============ Cartes services ============ */
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.card {
  background: var(--blanc); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--ombre);
  border-top: 4px solid var(--vert);
  transition: transform .15s;
}
.card:hover { transform: translateY(-4px); }
.card-icon { font-size: 2.2rem; margin-bottom: 12px; }
.card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.card p { color: var(--gris); font-size: .95rem; }

/* ============ Étapes ============ */
.steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px; margin-top: 40px;
}
.step { text-align: center; padding: 0 10px; }
.step-num {
  width: 52px; height: 52px; margin: 0 auto 16px;
  background: var(--vert); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; font-weight: 800;
}
.step h3 { margin-bottom: 8px; font-size: 1.1rem; }
.step p { color: var(--gris); font-size: .95rem; }

/* ============ Engagement ============ */
.engagement { display: grid; grid-template-columns: 1.4fr 1fr; gap: 50px; align-items: center; }
.engagement-text p { color: var(--gris); margin-bottom: 16px; }
.engagement-badges { display: grid; gap: 16px; }
.badge-big {
  display: flex; align-items: center; gap: 16px;
  background: var(--vert-clair); border-radius: var(--radius);
  padding: 18px 22px; font-size: 1.8rem;
}
.badge-big span { font-size: .95rem; font-weight: 700; color: var(--encre); line-height: 1.35; }

/* ============ Bande CTA ============ */
.cta-band {
  background: linear-gradient(135deg, var(--vert), var(--vert-fonce));
  color: #fff; text-align: center; padding: 60px 0;
}
.cta-band h2 { margin-bottom: 24px; font-size: 1.7rem; }

/* ============ Footer ============ */
.site-footer { background: var(--encre); color: #cfe0d7; padding: 50px 0 20px; }
.footer-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px; margin-bottom: 30px;
}
.site-footer a { color: #8fdcae; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .logo { color: #fff; margin-bottom: 8px; }
.footer-legal {
  text-align: center; font-size: .85rem; color: #7d938a;
  border-top: 1px solid #33443d; padding-top: 18px;
}

/* ============ Page galerie ============ */
.page-head {
  background: linear-gradient(160deg, var(--fond) 55%, var(--vert-clair));
  padding: 60px 0 50px; text-align: center;
}
.page-head h1 { font-size: 2.4rem; margin-bottom: 10px; }
.page-head p { color: var(--gris); max-width: 620px; margin: 0 auto; }
.page-head .lead-strong {
  color: var(--encre); font-weight: 800;
  font-size: clamp(1.2rem, 2.6vw, 1.55rem); line-height: 1.35;
  max-width: 680px; margin: 0 auto 8px;
}
.page-head .lead-sub { font-size: .95rem; }

.gallery {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}
.project {
  background: var(--blanc); border-radius: var(--radius);
  box-shadow: var(--ombre); overflow: hidden;
}
.project-info { padding: 20px 22px; position: relative; }
.project-info h3 { margin-bottom: 12px; }

/* Bouton "Voir en 3D" dans le coin haut droit de la zone blanche */
.btn-3d {
  position: absolute; top: 16px; right: 16px;
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--vert); color: #fff; border: none;
  font-size: .78rem; font-weight: 700; line-height: 1.1;
  padding: 7px 13px; border-radius: 999px; cursor: pointer;
  transition: background .15s, transform .15s;
}
.btn-3d:hover { background: var(--vert-fonce); transform: translateY(-1px); }
.project-info p { color: var(--gris); font-size: .93rem; }
.project-tag {
  display: inline-block; background: var(--vert-clair); color: var(--vert-fonce);
  font-size: .78rem; font-weight: 700; padding: 3px 12px;
  border-radius: 999px; margin-bottom: 10px;
}

/* Bulle prix sous chaque projet */
.project-meta { display: flex; flex-wrap: wrap; gap: 10px; }
.meta-bubble {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--vert); color: #fff;
  font-size: .85rem; font-weight: 700; padding: 6px 14px;
  border-radius: 999px;
}
.meta-bubble .meta-icon { font-size: 1rem; }

/* --- Comparateur avant/après --- */
.compare {
  position: relative; aspect-ratio: 4 / 3; overflow: hidden;
  user-select: none; background: #dde7e1;
}
.compare img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block; pointer-events: none;
}
.compare .img-after { clip-path: inset(0 0 0 50%); }
.compare-handle {
  position: absolute; top: 0; bottom: 0; left: 50%; width: 3px;
  background: #fff; cursor: ew-resize; z-index: 5;
  box-shadow: 0 0 8px rgba(0,0,0,.35);
}
.compare-handle::after {
  content: "◂ ▸"; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: #fff; color: var(--encre); font-size: .8rem;
  padding: 6px 9px; border-radius: 999px; white-space: nowrap;
  font-weight: 700;
}
.compare-label {
  position: absolute; top: 10px; z-index: 4;
  background: rgba(29,43,38,.75); color: #fff; font-size: .75rem;
  font-weight: 700; padding: 3px 10px; border-radius: 999px;
}
.compare-label.avant { left: 10px; }
.compare-label.apres { right: 10px; }

/* --- Photo simple (projet sans "avant") --- */
.photo-solo {
  position: relative; aspect-ratio: 4 / 3; overflow: hidden;
  background: #dde7e1;
}
.photo-solo img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.photo-solo img.zoomable { cursor: zoom-in; }

/* --- Bouton loupe sur les cartes avant/après --- */
.compare .zoom-btn {
  position: absolute; bottom: 10px; right: 10px; z-index: 6;
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(29, 43, 38, .78); color: #fff; border: none;
  font-size: 1.15rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
.compare .zoom-btn:hover { background: var(--vert); }

/* --- Lightbox : photo en grand sur fond assombri --- */
.lightbox {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(10, 18, 15, .82);
  display: none; align-items: center; justify-content: center;
  padding: 20px;
}
.lightbox.open { display: flex; }
.lightbox-img {
  max-width: 80vw; max-height: 80vh; width: auto; height: auto;
  border-radius: 10px; background: #fff;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
}
.lightbox-close {
  position: fixed; top: 18px; right: 22px;
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(255, 255, 255, .15); color: #fff; border: none;
  font-size: 2rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
.lightbox-close:hover { background: var(--vert); }

/* --- Visionneuse 3D --- */
.viewer-wrap {
  background: var(--blanc); border-radius: var(--radius);
  box-shadow: var(--ombre); overflow: hidden;
}
#viewer3d {
  width: 100%; height: 480px; display: block;
  background: radial-gradient(circle at 50% 40%, #ffffff, #dce8e1);
  cursor: grab; touch-action: none;
}
#viewer3d:active { cursor: grabbing; }
.viewer-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 14px 18px; border-top: 1px solid #e3ece7;
}
.viewer-bar label { font-weight: 700; font-size: .92rem; }
.viewer-bar select {
  padding: 8px 12px; border: 1.5px solid #cfe0d7; border-radius: 8px;
  font-size: .95rem; background: #fff;
}

/* ============ Page commande ============ */
.form-card {
  background: var(--blanc); border-radius: var(--radius);
  box-shadow: var(--ombre); padding: 40px;
  max-width: 720px; margin: 0 auto;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-weight: 700; font-size: .95rem; }
.form-field label .req { color: #d24545; }
.form-field input, .form-field select, .form-field textarea {
  padding: 12px 14px; border: 1.5px solid #cfe0d7; border-radius: 10px;
  font-size: 1rem; font-family: inherit; background: #fff;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--vert);
  box-shadow: 0 0 0 3px rgba(46,158,91,.15);
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-help { font-size: .83rem; color: var(--gris); }

.file-drop {
  border: 2px dashed #b5cfc1; border-radius: 10px; padding: 24px;
  text-align: center; color: var(--gris); cursor: pointer;
  transition: border-color .15s, background .15s;
}
.file-drop:hover, .file-drop.drag { border-color: var(--vert); background: var(--vert-clair); }
.file-drop input { display: none; }
.file-list { list-style: none; margin-top: 10px; font-size: .88rem; color: var(--vert-fonce); }
.file-list li { padding: 2px 0; }

.notice {
  background: var(--vert-clair); border-left: 4px solid var(--vert);
  padding: 14px 18px; border-radius: 0 10px 10px 0;
  font-size: .9rem; color: var(--encre); margin-bottom: 26px;
}

/* ============ Page merci ============ */
.merci-box { text-align: center; padding: 100px 20px; }
.merci-box .big { font-size: 4rem; margin-bottom: 16px; }
.merci-box h1 { margin-bottom: 12px; }
.merci-box p { color: var(--gris); margin-bottom: 30px; }

/* ============ Responsive ============ */
@media (max-width: 820px) {
  .hero { flex-direction: column; min-height: 0; }
  .hero-left, .hero-right { flex-basis: auto; max-width: 100%; }
  .hero-left { padding: 40px 24px; }
  .hero-logo { max-width: 420px; }
  .hero-right { padding: 44px 24px; }
  .engagement { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .strip-items { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 680px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--fond); flex-direction: column; padding: 20px;
    border-bottom: 1px solid #e3ece7; gap: 16px;
  }
  .nav-links.open { display: flex; }
  .form-card { padding: 26px 20px; }
}

/* ============================================================
   Logo texte "C.I.M 3D" épinglé en haut à gauche (vert des boutons)
   ============================================================ */
.site-header .nav { justify-content: flex-end; } /* le menu reste à droite du conteneur centré */
.site-header .logo {
  position: absolute; left: 20px; top: 0; height: 64px;
  display: flex; align-items: center;
  color: var(--vert); font-size: 1.4rem; font-weight: 800; letter-spacing: .5px;
}