/* ============================================
   PBE - Site vitrine
   Couleurs : vert et noir du logo PBE
   ============================================ */

:root {
  --primary: #111111;
  --primary-light: #1e1e1e;
  --accent: #2e7d32;
  --accent-light: #388e3c;
  --accent-dark: #1b5e20;
  --white: #ffffff;
  --light: #f7f8fa;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #9ca3af;
  --gray-600: #6b7280;
  --text: #1f2937;
  --text-light: #4b5563;
  --font-head: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.14);
  --transition: 0.25s ease;
}

/* 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(--text); background: var(--white); line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* LAYOUT */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn--primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn--primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(46,125,50,0.4);
}
.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}
.btn--full { width: 100%; justify-content: center; }

/* SECTION HEADERS */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header--light .section-title,
.section-header--light .section-sub { color: var(--white); }
.section-header--light .section-label { color: rgba(255,255,255,0.65); }
.section-label {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: all 0.3s ease;
}
.nav.scrolled {
  background: var(--primary);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.nav__container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  background: var(--white);
  border-radius: 6px;
  padding: 6px 12px;
}
.nav__logo img {
  height: 36px;
  width: auto;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__links a {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--white); }
.nav__cta {
  background: var(--accent) !important;
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}
.nav__cta:hover { background: var(--accent-dark) !important; }
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--primary);
  overflow: hidden;
  padding: 0;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/etancheite-pvc-dune-pilat.jpg') center/cover no-repeat;
  opacity: 0.12;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(17,17,17,0.98) 0%, rgba(17,17,17,0.85) 50%, rgba(17,17,17,0.4) 100%);
}
.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 1160px;
  margin: 0 auto;
  padding: 130px 24px 80px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 64px;
  align-items: center;
}
.hero__label {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 20px;
  display: block;
}
.hero__title {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 24px;
}
.hero__title span { color: var(--accent-light); }
.hero__subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,0.72);
  max-width: 500px;
  margin-bottom: 28px;
  line-height: 1.75;
}
.hero__details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
}
.hero__detail {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
}
.hero__detail svg { color: var(--accent-light); flex-shrink: 0; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.hero__trust {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.trust-item {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  font-weight: 500;
}
.trust-sep {
  color: rgba(255,255,255,0.2);
  font-size: 0.8rem;
}

/* Photo grid dans le hero */
.hero__visual { position: relative; }
.hero__photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 220px 180px;
  gap: 10px;
  border-radius: 12px;
  overflow: hidden;
}
.hero__photo { overflow: hidden; border-radius: 8px; }
.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.hero__photo:hover img { transform: scale(1.05); }
.hero__photo--tall {
  grid-row: 1 / 3;
}

.hero__scroll {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.3);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
  z-index: 2;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================
   STATS
   ============================================ */
.stats { background: var(--accent); padding: 0; }
.stats__container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stats__item {
  padding: 32px 24px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.stats__item:last-child { border-right: none; }
.stats__item strong {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stats__item span {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.82);
  font-weight: 500;
}

/* ============================================
   SERVICES
   ============================================ */
.services { background: var(--light); }
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--white);
  border-radius: 12px;
  padding: 40px 32px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  border-top: 4px solid transparent;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--accent);
}
.service-card--accent {
  background: var(--accent);
  border-top-color: var(--accent-dark);
}
.service-card__icon {
  width: 64px; height: 64px;
  border-radius: 12px;
  background: rgba(46,125,50,0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  padding: 14px;
}
.service-card__icon svg { width: 100%; height: 100%; }
.service-card h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.service-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.service-card__list { display: flex; flex-direction: column; gap: 8px; }
.service-card__list li {
  color: var(--text-light);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.service-card__list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.service-card--accent h3 { color: var(--white); }
.service-card--accent p { color: rgba(255,255,255,0.88); }
.service-card--accent .service-card__list li { color: rgba(255,255,255,0.85); }
.service-card--accent .service-card__icon { color: var(--white); background: rgba(255,255,255,0.18); }
.service-card--accent .service-card__list li::before { background: var(--white); opacity: 0.7; }

/* ============================================
   CLIENTS
   ============================================ */
.clients { background: var(--white); }
.clients__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.client-card {
  background: var(--light);
  border-radius: 10px;
  padding: 28px 16px;
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 96px;
}
.client-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.client-card__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--primary);
  line-height: 1.35;
  margin-bottom: 6px;
}
.client-card__type {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
}

/* ============================================
   PAGES LÉGALES
   ============================================ */
.legal-hero {
  background: var(--primary);
  padding: 130px 0 64px;
}
.legal-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}
.legal-hero p {
  color: rgba(255,255,255,0.45);
  font-size: 0.88rem;
}
.legal-content { padding: 80px 0; }
.legal-content__inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}
.legal-content h2 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin: 40px 0 14px;
  padding-top: 40px;
  border-top: 1px solid var(--gray-200);
}
.legal-content h2:first-of-type { margin-top: 0; padding-top: 0; border-top: none; }
.legal-content p {
  color: var(--text-light);
  line-height: 1.85;
  font-size: 0.95rem;
  margin-bottom: 14px;
}
.legal-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}
.legal-content li { margin-bottom: 6px; }
.legal-content strong { color: var(--text); font-weight: 600; }
.legal-content a { color: var(--accent); }
.legal-content a:hover { text-decoration: underline; }

/* ============================================
   RÉALISATIONS
   ============================================ */
.realisations { background: var(--primary); }
.realisations__filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 2px solid rgba(255,255,255,0.2);
  background: transparent;
  color: rgba(255,255,255,0.65);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover, .filter-btn--active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}
.realisations__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.realisation-item {
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition);
  position: relative;
}
.realisation-item:hover { transform: scale(1.02); }
.realisation-item:hover .realisation-item__info { opacity: 1; }
.realisation-item.hidden { display: none; }
.realisation-item__img {
  aspect-ratio: 4/3;
  overflow: hidden;
}
.realisation-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.realisation-item:hover .realisation-item__img img { transform: scale(1.05); }
.realisation-item__info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(17,17,17,0.92) 0%, transparent 100%);
  padding: 32px 16px 14px;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  opacity: 0.85;
  transition: opacity var(--transition);
}
.realisation-item__cat {
  background: var(--accent);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 100px;
  white-space: nowrap;
  flex-shrink: 0;
}
.realisation-item__info p {
  color: rgba(255,255,255,0.9);
  font-size: 0.85rem;
  line-height: 1.3;
}

/* ============================================
   DEVIS
   ============================================ */
.devis { background: var(--light); }
.devis__wrapper {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}
.devis__intro h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
}
.devis__intro p {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 32px;
}
.devis__garanties { display: flex; flex-direction: column; gap: 14px; }
.devis__garanties li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 500;
}
.devis__garanties svg { color: var(--accent); flex-shrink: 0; }
.devis__form {
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.form-group:last-of-type { margin-bottom: 0; }
label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}
input, select, textarea {
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text);
  transition: border-color var(--transition);
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
input::placeholder, textarea::placeholder { color: var(--gray-400); }
textarea { resize: vertical; min-height: 120px; }
select { cursor: pointer; }
.form-mention {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 12px;
  text-align: center;
}
.devis__success {
  background: var(--white);
  border-radius: 12px;
  padding: 64px 40px;
  box-shadow: var(--shadow);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.devis__success svg { color: var(--accent); }
.devis__success h3 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
}
.devis__success p { color: var(--text-light); }

/* ============================================
   FOOTER
   ============================================ */
.footer { background: var(--primary); padding: 64px 0 0; }
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer__logo-img {
  height: 44px;
  width: auto;
  background: var(--white);
  padding: 6px 10px;
  border-radius: 6px;
  margin-bottom: 16px;
}
.footer__brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}
.footer__col h4 {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.35);
  margin-bottom: 20px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col li a,
.footer__col li {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer__col li a:hover { color: var(--white); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom p {
  color: rgba(255,255,255,0.3);
  font-size: 0.82rem;
}
.footer__legal-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer__legal-links a {
  color: rgba(255,255,255,0.3);
  font-size: 0.82rem;
  transition: color var(--transition);
}
.footer__legal-links a:hover { color: rgba(255,255,255,0.65); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { display: none; }
  .stats__container { grid-template-columns: repeat(2, 1fr); }
  .stats__item:nth-child(2) { border-right: none; }
  .stats__item:nth-child(3) { border-top: 1px solid rgba(255,255,255,0.2); }
  .services__grid { grid-template-columns: 1fr 1fr; }
  .clients__grid { grid-template-columns: repeat(3, 1fr); }
  .realisations__grid { grid-template-columns: repeat(2, 1fr); }
  .devis__wrapper { grid-template-columns: 1fr; gap: 40px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: var(--primary);
    align-items: center;
    justify-content: center;
    gap: 32px;
    z-index: 99;
  }
  .nav__links.open a { font-size: 1.2rem; }
  .nav__toggle { display: flex; z-index: 100; }
  .hero__inner { padding: 110px 24px 60px; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .stats__container { grid-template-columns: repeat(2, 1fr); }
  .services__grid { grid-template-columns: 1fr; }
  .clients__grid { grid-template-columns: repeat(2, 1fr); }
  .realisations__grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .devis__form { padding: 28px 20px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .realisations__grid { grid-template-columns: 1fr; }
}