/* Proposition 2, chantier en lumière, pierre claire, vert sapin et or */
:root {
  --noir: #000000;
  --sapin: #1E3A2C;
  --sapin-clair: #2D5240;
  --or: #B8924A;
  --or-clair: #D9BE85;
  --pierre: #EEEFEA;
  --pierre-fonce: #DFE1DA;
  --ardoise: #3B4340;
  --blanc: #FFFFFF;
  --f: "Archivo", system-ui, sans-serif;
  --t-h1: clamp(2.2rem, 1.5rem + 2.4vw, 3.7rem);
  --t-h2: clamp(1.8rem, 1.3rem + 1.5vw, 2.7rem);
  --t-h3: 1.2rem;
  --t-txt: 1.0625rem;
}

body { font-family: var(--f); font-size: var(--t-txt); line-height: 1.6; color: var(--ardoise); background: var(--pierre); }
h1, h2, h3 { font-weight: 800; font-stretch: 72%; line-height: 1.05; color: var(--sapin); text-transform: none; }
h1 { font-size: var(--t-h1); color: var(--blanc); }
h2 { font-size: var(--t-h2); }
h3 { font-size: var(--t-h3); font-stretch: 85%; font-weight: 700; line-height: 1.2; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 12px 26px; border-radius: 40px; font-weight: 700; font-size: 1rem; text-decoration: none; transition: background .2s, color .2s; }
.btn .ico { width: 20px; height: 20px; }
.btn-or { background: var(--or); color: var(--noir); }
.btn-or:hover { background: var(--or-clair); }
.btn-ligne { border: 1.5px solid var(--or-clair); color: var(--blanc); }
.btn-ligne:hover { background: var(--or-clair); color: var(--noir); }
.btn-sapin { background: var(--sapin); color: var(--blanc); border: 0; cursor: pointer; }
.btn-sapin:hover { background: var(--sapin-clair); }
.btns { display: flex; flex-wrap: wrap; gap: 14px; }

.titre-bloc { display: flex; flex-direction: column; gap: 16px; max-width: 760px; margin-bottom: 48px; }
.titre-bloc.centre { margin-left: auto; margin-right: auto; text-align: center; align-items: center; }

/* En-tête */
.header.section { padding-top: 6px; padding-bottom: 6px; background: var(--noir); position: sticky; top: 0; z-index: 20; }
.header-in { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo img { height: 62px; width: auto; }
.menu { display: flex; align-items: center; gap: 28px; }
.menu a:not(.btn) { text-decoration: none; color: var(--pierre); font-weight: 500; font-size: .98rem; }
.menu a:not(.btn):hover { color: var(--or-clair); }
.menu .btn { min-height: 44px; }

/* Héros composé */
.hero.section { background: linear-gradient(90deg, var(--sapin) 0 50%, var(--pierre) 50% 100%); }
.hero-in { display: grid; grid-template-columns: 5fr 7fr; gap: 0; align-items: stretch; }
.hero-panneau { background: var(--sapin); color: var(--pierre); display: flex; flex-direction: column; justify-content: center; gap: 24px; padding: 40px 56px 40px 0; }
.hero-panneau p { font-size: 1.12rem; max-width: 50ch; }
.hero-visuel { position: relative; min-height: 560px; }
.hero-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-drone { position: absolute; left: -56px; bottom: -40px; width: 46%; margin: 0; background: var(--noir); border: 6px solid var(--pierre); box-shadow: 0 18px 40px rgba(20,42,31,.35); }
.hero-drone video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.hero-drone figcaption { padding: 8px 12px; font-size: .85rem; color: var(--pierre); }

/* Engagements */
.engagements.section { background: var(--pierre); }
.eng-liste { margin-top: 30px; }
.eng-liste { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.eng-liste li { display: flex; gap: 18px; align-items: flex-start; }
.eng-liste .ico { width: 40px; height: 40px; color: var(--or); stroke-width: 1.5; }
.eng-liste h2 { font-size: 1.35rem; font-stretch: 85%; margin-bottom: 6px; }

/* Prestations */
.prestations.section { background: var(--blanc); }
.prest-in { display: grid; grid-template-columns: 4fr 7fr; gap: 72px; align-items: start; }
.prest-txt { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 110px; }
.prest-txt img { margin-top: 12px; aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.prest-liste { display: grid; grid-template-columns: 1fr 1fr; gap: 44px 40px; }
.prest-liste li { display: flex; flex-direction: column; gap: 10px; padding-top: 24px; border-top: 2px solid var(--pierre-fonce); }
.pastille { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: var(--sapin); color: var(--or-clair); }
.pastille .ico { width: 28px; height: 28px; }

/* Étapes d'un chantier */
.chantier.section { background: var(--sapin); color: var(--pierre); }
.chantier h2, .chantier h3 { color: var(--blanc); }
.etapes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: none; }
.etapes li { position: relative; display: flex; flex-direction: column; gap: 10px; }
.etapes img { aspect-ratio: 3 / 4; object-fit: cover; width: 100%; margin-bottom: 14px; }
.etapes .num { position: absolute; top: 14px; left: 14px; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; background: var(--or); color: var(--noir); font-weight: 800; font-size: 1.4rem; }
.anim .etapes li { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.anim .etapes.vu li { opacity: 1; transform: none; }
.anim .etapes.vu li:nth-child(2) { transition-delay: .2s; }
.anim .etapes.vu li:nth-child(3) { transition-delay: .4s; }
.anim .etapes.vu li:nth-child(4) { transition-delay: .6s; }

/* Réalisations en défilement */
.realisations.section { background: var(--pierre); overflow: hidden; }
.defile { margin: 0 calc(var(--kit-pad-x) * -1); }
.defile { overflow: hidden; }
.defile-piste { display: flex; gap: 16px; width: max-content; animation: defile 60s linear infinite; }
.defile:hover .defile-piste { animation-play-state: paused; }
.defile img { height: 340px; width: auto; }
@keyframes defile { to { transform: translateX(calc(-50% - 8px)); } }

/* Zone */
.zone.section { background: var(--pierre-fonce); }
.zone-in { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.zone-txt { display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
.zone-liste { display: flex; flex-direction: column; gap: 14px; }
.zone-liste li { display: flex; align-items: center; gap: 16px; padding: 22px 26px; background: var(--blanc); border-left: 4px solid var(--or); font-size: 1.25rem; font-weight: 700; color: var(--sapin); }
.zone-liste .ico { color: var(--or); }
.zone-liste .dep { margin-left: auto; font-size: 2rem; font-stretch: 70%; font-weight: 800; color: var(--or); }

/* Avis */
.avis.section { background: var(--pierre); }
.mention { font-size: .9rem; }
.avis-liste { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.avis-carte { background: var(--blanc); border-radius: 14px; overflow: hidden; padding-bottom: 26px; display: flex; flex-direction: column; gap: 14px; }
.avis-carte img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.avis-carte > *:not(img) { margin: 0 26px; }
.etoiles { display: flex; gap: 4px; color: var(--or); }
.etoiles .ico { width: 20px; height: 20px; fill: currentColor; stroke: none; }
.auteur { font-weight: 700; color: var(--sapin); }

/* FAQ */
.faq.section { background: var(--blanc); }
.faq h2 { margin-bottom: 36px; }
.faq details { border-bottom: 1px solid var(--pierre-fonce); }
.faq details:first-child { border-top: 1px solid var(--pierre-fonce); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 24px 0; font-weight: 700; font-size: 1.2rem; color: var(--sapin); }
.faq summary .ico { flex: none; width: 34px; height: 34px; padding: 6px; border-radius: 50%; background: var(--sapin); color: var(--or-clair); transition: transform .3s; }
.faq details[open] summary .ico { transform: rotate(45deg); }
.faq details p { padding: 0 0 26px; max-width: 80ch; }

/* Devis */
.devis.section { position: relative; background: url("../img/maison-ville.jpg") center 40% / cover; }
.devis::before { content: ""; position: absolute; inset: 0; background: rgba(20,42,31,.82); }
.devis-in { position: relative; display: flex; justify-content: center; }
.devis-carte { width: 100%; max-width: 820px; background: var(--pierre); border-radius: 16px; padding: 48px; display: flex; flex-direction: column; gap: 16px; text-align: center; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 16px; text-align: left; }
.form label { display: flex; flex-direction: column; gap: 8px; font-size: .92rem; font-weight: 600; color: var(--sapin); }
.form .large { grid-column: 1 / -1; }
.form input, .form select, .form textarea { font: inherit; color: var(--ardoise); background: var(--blanc); border: 1px solid var(--pierre-fonce); border-radius: 8px; padding: 12px 14px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--or); outline-offset: 1px; }

/* Pied de page */
.footer.section { background: var(--noir); color: var(--pierre); }
.footer-in { display: grid; grid-template-columns: auto 1fr auto; gap: 48px; align-items: center; }
.footer-logo { width: 180px; }
.footer-contacts { display: flex; flex-direction: column; gap: 10px; }
.footer-contacts li { display: flex; align-items: center; gap: 10px; }
.footer-contacts .ico { color: var(--or); }
.footer-contacts a { text-decoration: none; }
.footer-droite { display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
.reseaux { display: flex; gap: 12px; }
.reseaux a { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: var(--sapin); color: var(--or-clair); }
.legal { display: flex; gap: 20px; font-size: .88rem; }

/* Portable */
@media (max-width: 1366px) {
  .menu { gap: 20px; }
  .prest-in { gap: 48px; }
  .hero-visuel { min-height: 500px; }
}
@media (max-width: 1180px) {
  .burger { display: block; color: var(--or-clair); }
  .menu { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 12px var(--kit-pad-x) 24px; background: var(--noir); }
  .menu.ouvert { display: flex; }
  .menu a:not(.btn) { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .menu .btn { margin-top: 16px; }
}
/* Tablette */
@media (max-width: 1024px) {
  .hero.section { background: var(--sapin); padding-bottom: 0; }
  .hero-in { grid-template-columns: 1fr; }
  .hero-panneau { padding: 0 0 40px; }
  .hero-visuel { min-height: 420px; margin: 0 calc(var(--kit-pad-x) * -1); }
  .hero-drone { left: var(--kit-pad-x); bottom: -40px; width: 52%; }
  .eng-liste { grid-template-columns: 1fr; gap: 28px; }
  .prest-in { grid-template-columns: 1fr; }
  .prest-txt { position: static; }
  .prest-txt img { aspect-ratio: 16 / 9; }
  .etapes { grid-template-columns: repeat(2, 1fr); }
  .zone-in { grid-template-columns: 1fr; gap: 40px; }
  .avis-liste { grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; }
  .footer-in { grid-template-columns: 1fr; text-align: left; gap: 28px; }
  .footer-droite { align-items: flex-start; }
}
/* Téléphone */
@media (max-width: 767px) {
  .logo img { height: 54px; }
  .btns .btn { width: 100%; }
  .hero-visuel { min-height: 300px; }
  .hero-drone { width: 64%; bottom: -30px; }
  .prest-liste { grid-template-columns: 1fr; gap: 28px; }
  .etapes { grid-template-columns: 1fr; }
  .defile img { height: 240px; }
  .devis-carte { padding: 28px 20px; }
  .form { grid-template-columns: 1fr; }
  .legal { flex-direction: column; gap: 8px; }
}