/* ============================================
   CNB CONSTRUCTION — style.css
   Palette inspirée du flyer : noir / orange / blanc
   ============================================ */

:root {
  --orange: #f28c1e;
  --orange-dark: #d97a10;
  --dark: #1c1c1c;
  --dark-2: #262626;
  --light: #f7f7f7;
  --white: #ffffff;
  --grey: #6b6b6b;
  --font-title: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .12);
  --transition: all .3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
}

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

.container {
  width: min(1140px, 92%);
  margin-inline: auto;
}

/* ===== Boutons ===== */
.btn {
  display: inline-block;
  padding: .85rem 1.9rem;
  font-family: var(--font-title);
  font-size: .95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}
.btn--primary { background: var(--orange); color: var(--white); }
.btn--primary:hover { background: var(--orange-dark); transform: translateY(-2px); }
.btn--outline { border-color: var(--white); color: var(--white); }
.btn--outline:hover { background: var(--white); color: var(--dark); }
.btn--dark { background: var(--dark); color: var(--white); }
.btn--dark:hover { background: var(--orange); }
.btn--full { width: 100%; }

/* ===== Header ===== */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(28, 28, 28, .92);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.35); background: rgba(20,20,20,.98); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: .9rem;
}

/* Logo */
.logo { display: flex; align-items: center; }
.logo__img { height: 52px; width: auto; display: block; }
.logo--footer .logo__img { height: 68px; }

/* Nav */
.nav { display: flex; align-items: center; gap: 1.8rem; }
.nav__link {
  color: var(--white);
  font-size: .92rem;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--orange);
  transition: var(--transition);
}
.nav__link:hover::after,
.nav__link.active::after { width: 100%; }
.nav__link--btn {
  background: var(--orange);
  padding: .5rem 1.3rem;
  border-radius: var(--radius);
}
.nav__link--btn::after { display: none; }
.nav__link--btn:hover { background: var(--orange-dark); }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
}
.burger span {
  width: 26px; height: 3px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(120deg, rgba(20,20,20,.92) 35%, rgba(20,20,20,.55)),
    url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1600&q=80')
    center/cover no-repeat fixed;
  color: var(--white);
  padding-top: 110px;
}
.hero__content { position: relative; z-index: 2; max-width: 700px; }
.hero__tag {
  display: inline-block;
  background: var(--orange);
  font-family: var(--font-title);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: .35rem 1rem;
  border-radius: 4px;
  margin-bottom: 1.2rem;
}
.hero__title {
  font-family: var(--font-title);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.1;
}
.hero__title span { color: var(--orange); }
.hero__subtitle {
  margin: 1.4rem 0 2.2rem;
  font-size: 1.1rem;
  color: #dcdcdc;
  max-width: 560px;
}
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Bandeau engagements */
.hero__banner {
  margin-top: auto;
  background: rgba(28,28,28,.85);
  border-top: 3px solid var(--orange);
  padding-block: 1.6rem;
  position: relative; z-index: 2;
}
.hero__banner-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.banner-item { display: flex; gap: .9rem; align-items: flex-start; }
.banner-item__icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--orange);
  border-radius: 50%;
  color: var(--white);
}
.banner-item__icon svg { width: 20px; height: 20px; }
.banner-item h3 {
  font-family: var(--font-title);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.banner-item p { font-size: .85rem; color: #cfcfcf; }

/* ===== Sections ===== */
.section { padding-block: 5.5rem; }
.section--dark { background: var(--dark); color: var(--white); }
.section--grey { background: var(--light); }

.section__head { text-align: center; margin-bottom: 3rem; }
.section__title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  text-transform: uppercase;
  letter-spacing: .03em;
}
.section__title span { color: var(--orange); }
.section__title::after {
  content: '';
  display: block;
  width: 60px; height: 4px;
  background: var(--orange);
  margin-top: .6rem;
}
.section__head .section__title::after { margin-inline: auto; }
.section__intro { margin-top: .8rem; color: #bdbdbd; font-size: 1.05rem; }
.section__intro--dark { color: var(--grey); }

/* ===== Services ===== */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}
.service {
  background: var(--dark-2);
  border: 1px solid #333;
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  transition: var(--transition);
}
.service:hover {
  transform: translateY(-6px);
  border-color: var(--orange);
  box-shadow: 0 14px 30px rgba(0,0,0,.4);
}
.service__icon {
  width: 58px; height: 58px;
  display: grid; place-items: center;
  background: var(--orange);
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
  color: var(--white);
  margin-bottom: 1.1rem;
}
.service__icon svg { width: 26px; height: 26px; }
.service h3 {
  font-family: var(--font-title);
  font-size: 1.15rem;
  text-transform: uppercase;
  margin-bottom: .7rem;
}
.service h3 span { display: block; color: var(--orange); font-size: .95rem; }
.service p, .service li { color: #c8c8c8; font-size: .95rem; }
.service ul li::before { content: '• '; color: var(--orange); font-weight: 700; }

.service--cta {
  background: var(--orange);
  border-color: var(--orange);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
  text-align: center;
}
.service--cta p { color: rgba(255,255,255,.92); }
.service--cta .btn { background: var(--dark); color: var(--white); align-self: center; }
.service--cta .btn:hover { background: var(--white); color: var(--dark); }

/* ===== À propos ===== */
.about {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 3.5rem;
  align-items: center;
}
.about__text p { margin-bottom: 1rem; color: #444; }
.about__text .section__title { margin-bottom: 1.4rem; }
.about__text .btn { margin-top: .8rem; }

.about__stats {
  display: grid;
  gap: 1.3rem;
}
.stat {
  background: var(--white);
  border-left: 5px solid var(--orange);
  border-radius: var(--radius);
  padding: 1.5rem 1.8rem;
  box-shadow: var(--shadow);
}
.stat__num {
  font-family: var(--font-title);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--orange);
  display: block;
  line-height: 1;
}
.stat__label {
  font-size: .9rem;
  color: var(--grey);
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* ===== Valeurs ===== */
.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
}
.value {
  position: relative;
  overflow: hidden;
  text-align: left;
  padding: 2.2rem 1.6rem 2rem;
  border-radius: var(--radius);
  background: var(--dark-2);
  border: 1px solid #333;
  border-top: 3px solid var(--orange);
  transition: var(--transition);
}
.value:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 30px rgba(0,0,0,.4);
}
.value__num {
  position: absolute;
  top: .6rem; right: 1rem;
  font-family: var(--font-title);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(255,255,255,.06);
  line-height: 1;
}
.value__icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: rgba(242, 140, 30, .12);
  border: 1px solid var(--orange);
  border-radius: 50%;
  color: var(--orange);
  margin-bottom: 1.1rem;
  transition: var(--transition);
}
.value__icon svg { width: 24px; height: 24px; }
.value:hover .value__icon { background: var(--orange); color: var(--white); }
.value h3 {
  font-family: var(--font-title);
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--white);
  margin-bottom: .5rem;
}
.value p { font-size: .9rem; color: #b5b5b5; }

/* ===== Galerie réalisations ===== */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .6rem;
  margin-bottom: 2.2rem;
}
.filter-btn {
  padding: .5rem 1.3rem;
  border: 2px solid #e2e2e2;
  background: var(--white);
  border-radius: 30px;
  font-family: var(--font-title);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--dark);
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.3rem;
}
.gallery__item {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.gallery__item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}
.gallery__item:hover img { transform: scale(1.07); }
.gallery__item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 2rem 1rem .8rem;
  background: linear-gradient(transparent, rgba(0,0,0,.75));
  color: var(--white);
  font-family: var(--font-title);
  font-size: .95rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.gallery__item.hide { display: none; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  background: rgba(0,0,0,.92);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 8px;
}
.lightbox__close {
  position: absolute;
  top: 1rem; right: 1.6rem;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2.6rem;
  cursor: pointer;
  line-height: 1;
}

/* ===== Zone d'intervention ===== */
.zone {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.zone__text > p { color: #444; margin: 1.3rem 0; }
.zone__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .5rem 1.5rem;
  margin-bottom: 1.6rem;
}
.zone__list li { color: #444; font-size: .95rem; }
.zone__list li::before {
  content: '\2713';
  color: var(--orange);
  font-weight: 700;
  margin-right: .5rem;
}
.zone__badge {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--white);
  border-left: 4px solid var(--orange);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 1.1rem 1.3rem;
}
.zone__badge svg {
  flex-shrink: 0;
  width: 34px; height: 34px;
  color: var(--orange);
}
.zone__badge p { font-size: .92rem; color: #444; }
.zone__map iframe {
  width: 100%;
  height: 400px;
  border: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ===== WhatsApp ===== */
.whatsapp {
  position: fixed;
  right: 1.4rem; bottom: 5.6rem;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  background: #25d366;
  color: var(--white);
  border-radius: 50%;
  box-shadow: 0 6px 18px rgba(0,0,0,.3);
  z-index: 95;
  transition: var(--transition);
}
.whatsapp svg { width: 30px; height: 30px; }
.whatsapp:hover { transform: scale(1.1); }

/* ===== Contact ===== */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}
.contact-card {
  background: var(--light);
  border-radius: var(--radius);
  border-bottom: 3px solid var(--orange);
  box-shadow: var(--shadow);
  padding: 2.4rem 1.6rem;
  text-align: center;
  transition: var(--transition);
}
.contact-card:hover { transform: translateY(-6px); }
.contact-card__icon {
  width: 58px; height: 58px;
  display: grid; place-items: center;
  background: var(--orange);
  color: var(--white);
  border-radius: 50%;
  margin: 0 auto 1.1rem;
}
.contact-card__icon svg { width: 26px; height: 26px; }
.contact-card h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .7rem;
}
.contact-card a {
  display: block;
  color: var(--dark);
  font-weight: 500;
  margin-bottom: .3rem;
  transition: var(--transition);
}
.contact-card a:hover { color: var(--orange); }
.contact-card__mail {
  word-break: break-all;
  font-size: .95rem;
}
.contact-card address { font-style: normal; color: #444; }

.contact-cta {
  text-align: center;
  margin-top: 2.5rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: #cfcfcf;
  padding-top: 3.5rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}
.footer h4 {
  font-family: var(--font-title);
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: .9rem;
  letter-spacing: .05em;
}
.footer a { display: block; margin-bottom: .4rem; transition: var(--transition); }
.footer a:hover { color: var(--orange); }
.footer p { font-size: .92rem; margin-bottom: .4rem; }
.logo--footer { margin-bottom: .9rem; }
.footer__bottom {
  border-top: 1px solid #3a3a3a;
  padding-block: 1.2rem;
  text-align: center;
  font-size: .85rem;
}

/* ===== Back to top ===== */
.back-to-top {
  position: fixed;
  right: 1.4rem; bottom: 1.4rem;
  width: 46px; height: 46px;
  border: none;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 90;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--orange-dark); }

/* ===== Animations reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .services { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .contact-cards { grid-template-columns: 1fr; }
  .about, .zone { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__banner-items { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .burger { display: flex; }
  .nav {
    position: fixed;
    top: 64px; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--dark);
    width: min(280px, 80vw);
    height: calc(100vh - 64px);
    padding: 1.5rem;
    transform: translateX(100%);
    transition: var(--transition);
  }
  .nav.open { transform: translateX(0); }
  .nav__link { padding: .9rem 0; width: 100%; }
  .nav__link--btn { text-align: center; margin-top: 1rem; }
  .services { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .zone__list { grid-template-columns: 1fr; }
  .logo__img { height: 44px; }
  .hero { background-attachment: scroll; }
}

/*teste*/
/* ==========================================================================
   STYLE DU FORMULAIRE DE CONTACT PREMIUM CNB
   ========================================================================== */

/* Structure principale de la carte formulaire */
.formulaire-contact-cnb {
    max-width: 850px;
    margin: 2rem auto 0;
    background-color: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    text-align: left; /* Force le texte à gauche au lieu du centrage par défaut */
    border-top: 4px solid var(--orange);
}

.message-alerte {
    text-align: center;
    margin-bottom: 20px;
    font-weight: 600;
}

/* Les colonnes (50% de largeur chacune sur grand écran) */
.form-groupe {
    flex: 1 1 calc(50% - 10px);
    display: flex;
    flex-direction: column;
}

/* Ligne complète pour le budget, le message et le bouton */
.form-groupe--pleine-largeur {
    flex: 1 1 100%;
}

/* Les petits textes "Nom", "Prénom", etc. */
.form-groupe label {
    margin-bottom: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

/* Le design des cases à remplir */
.form-controle {
    width: 100%;
    padding: 14px;
    border: 1px solid #d1d1d1;
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: #fbfbfb;
    color: var(--dark);
    transition: all 0.3s ease;
}

.form-controle::placeholder {
    color: #a0a0a0;
}

/* L'effet classe quand on clique sur une case */
.form-controle:focus {
    outline: none;
    border-color: var(--orange);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(242, 140, 30, 0.2); /* Un halo orange subtil */
}

textarea.form-controle {
    resize: vertical;
    min-height: 120px;
}

.btn-container {
    margin-top: 10px;
}

/* Version téléphone (1 seule colonne) */
@media (max-width: 768px) {
    .formulaire-contact-cnb {
        padding: 25px 20px;
    }
    .form-groupe {
        flex: 1 1 100%;
    }
}