/* ============================================
   ATELIER 78 TRAVAUX - Style principal
   Palette : Bleu nuit + Jaune chantier
   ============================================ */

:root {
  --bleu-nuit: #0F172A;
  --bleu-fonce: #1E293B;
  --bleu-clair: #334155;
  --jaune: #FBBF24;
  --jaune-clair: #FCD34D;
  --gris-clair: #F8FAFC;
  --gris-moyen: #E2E8F0;
  --gris-texte: #64748B;
  --blanc: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.16);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Bebas+Neue&display=swap');

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  color: var(--bleu-nuit);
  background: var(--blanc);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ============ NAVBAR ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gris-moyen);
  z-index: 1000;
  transition: var(--transition);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.navbar-logo img {
  height: 56px;
}

.nav-menu {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  align-items: center;
}

.nav-menu a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--bleu-nuit);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--jaune);
  transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-cta {
  background: var(--jaune);
  color: var(--bleu-nuit) !important;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 700;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--bleu-nuit);
  color: var(--jaune) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.nav-cta::after {
  display: none !important;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.burger span {
  width: 28px;
  height: 3px;
  background: var(--bleu-nuit);
  border-radius: 2px;
  transition: var(--transition);
}

.burger.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* ============ HERO ============ */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bleu-nuit) 0%, var(--bleu-fonce) 100%);
  color: var(--blanc);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 0 4rem;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background:
    radial-gradient(circle at 70% 30%, rgba(251, 191, 36, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 30% 70%, rgba(251, 191, 36, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--jaune) 0%, var(--jaune-clair) 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  animation: fadeUp 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.5rem 1.25rem;
  background: rgba(251, 191, 36, 0.15);
  border: 1px solid rgba(251, 191, 36, 0.3);
  color: var(--jaune);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.hero-tag::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--jaune);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--jaune);
}

.hero h1 {
  margin-bottom: 1.5rem;
  font-weight: 800;
}

.hero h1 .highlight {
  color: var(--jaune);
  position: relative;
  display: inline-block;
}

.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--jaune);
  opacity: 0.3;
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 1rem 2rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--jaune);
  color: var(--bleu-nuit);
  box-shadow: 0 8px 24px rgba(251, 191, 36, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(251, 191, 36, 0.5);
  background: var(--jaune-clair);
}

.btn-secondary {
  background: transparent;
  color: var(--blanc);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  border-color: var(--jaune);
  background: rgba(251, 191, 36, 0.1);
}

.hero-stats {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 600px;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--jaune);
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 0.02em;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============ SECTIONS GÉNÉRIQUES ============ */
section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(251, 191, 36, 0.15);
  color: #B8860B;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--gris-texte);
  max-width: 700px;
  margin: 0 auto;
}

/* ============ SERVICES ============ */
.services {
  background: var(--gris-clair);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--blanc);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  transition: var(--transition);
  border: 1px solid var(--gris-moyen);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--jaune);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 64px;
  height: 64px;
  background: rgba(251, 191, 36, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 2rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--jaune);
  transform: rotate(-5deg) scale(1.05);
}

.service-card h3 {
  margin-bottom: 1rem;
  color: var(--bleu-nuit);
}

.service-card p {
  color: var(--gris-texte);
  margin-bottom: 1.5rem;
}

.service-link {
  font-weight: 700;
  color: var(--bleu-nuit);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
}

.service-link::after {
  content: '→';
  transition: var(--transition);
}

.service-card:hover .service-link::after {
  transform: translateX(5px);
}

/* ============ A PROPOS ============ */
.about {
  background: var(--blanc);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bleu-nuit), var(--bleu-fonce));
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 30L0 0M30 30l30-30M30 30L0 60M30 30l30 30' stroke='%23FBBF24' stroke-width='0.5' opacity='0.1'/%3E%3C/svg%3E");
}

.about-visual-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--jaune);
}

.about-visual-content .big-number {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 10rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.about-visual-content .big-label {
  font-size: 1.5rem;
  font-weight: 800;
  margin-top: 0.5rem;
}

.about-visual-content .big-sub {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.5rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-content h2 {
  margin-bottom: 1.5rem;
}

.about-content p {
  color: var(--gris-texte);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.about-features {
  list-style: none;
  margin: 2rem 0;
}

.about-features li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--gris-moyen);
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.about-features li::before {
  content: '✓';
  width: 28px;
  height: 28px;
  background: var(--jaune);
  color: var(--bleu-nuit);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  flex-shrink: 0;
}

/* ============ REALISATIONS ============ */
.realisations {
  background: var(--gris-clair);
}

.realisations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.realisation-card {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  background: linear-gradient(135deg, var(--bleu-nuit), var(--bleu-clair));
}

.realisation-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.9) 100%);
  z-index: 1;
  transition: var(--transition);
}

.realisation-card:hover::before {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 0%, rgba(15, 23, 42, 0.95) 100%);
}

.realisation-bg {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: rgba(251, 191, 36, 0.15);
  transition: var(--transition);
}

.realisation-card:hover .realisation-bg {
  transform: scale(1.1);
}

.realisation-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1.5rem;
  color: var(--blanc);
  z-index: 2;
}

.realisation-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--jaune);
  color: var(--bleu-nuit);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.realisation-info h4 {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.realisation-info p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.realisations-cta {
  text-align: center;
  margin-top: 3rem;
}

.notice-realisations {
  text-align: center;
  padding: 1.5rem;
  background: rgba(251, 191, 36, 0.1);
  border-radius: 12px;
  margin-bottom: 2rem;
  font-size: 0.95rem;
  color: var(--bleu-nuit);
}

/* ============ DEVIS ============ */
.devis {
  background: var(--bleu-nuit);
  color: var(--blanc);
  position: relative;
  overflow: hidden;
}

.devis::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.devis-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  position: relative;
  z-index: 2;
}

.devis-info h2 {
  color: var(--blanc);
  margin-bottom: 1.5rem;
}

.devis-info > p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.devis-features {
  list-style: none;
}

.devis-features li {
  padding: 1rem 0;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.devis-features li:last-child { border: none; }

.devis-features strong {
  display: block;
  color: var(--jaune);
  font-size: 1rem;
  margin-bottom: 4px;
}

.devis-features .feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(251, 191, 36, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.devis-form-wrapper {
  background: var(--blanc);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  color: var(--bleu-nuit);
  box-shadow: var(--shadow-lg);
}

.devis-form-wrapper h3 {
  margin-bottom: 0.5rem;
}

.devis-form-wrapper > p {
  color: var(--gris-texte);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--bleu-nuit);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--gris-moyen);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  background: var(--blanc);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--jaune);
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.15);
}

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

.form-submit {
  width: 100%;
  margin-top: 1rem;
  justify-content: center;
  font-size: 1.05rem;
}

.form-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--gris-texte);
  margin-top: 1rem;
}

/* ============ CONTACT ============ */
.contact {
  background: var(--blanc);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.contact-card {
  background: var(--gris-clair);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--gris-moyen);
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  background: var(--blanc);
  border-color: var(--jaune);
}

.contact-icon {
  width: 64px;
  height: 64px;
  background: var(--bleu-nuit);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 1.5rem;
  color: var(--jaune);
  transition: var(--transition);
}

.contact-card:hover .contact-icon {
  background: var(--jaune);
  color: var(--bleu-nuit);
  transform: scale(1.1);
}

.contact-card h4 {
  margin-bottom: 0.5rem;
}

.contact-card p, .contact-card a {
  color: var(--gris-texte);
  font-weight: 500;
  font-size: 0.95rem;
}

.contact-card a:hover {
  color: var(--bleu-nuit);
}

.contact-card .primary-info {
  color: var(--bleu-nuit);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0.25rem 0;
  display: block;
}

.zone-intervention {
  background: var(--gris-clair);
  border-radius: 16px;
  padding: 3rem;
  text-align: center;
}

.zone-intervention h3 {
  margin-bottom: 1rem;
}

.zone-intervention p {
  color: var(--gris-texte);
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.zone-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.zone-tag {
  background: var(--blanc);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--gris-moyen);
  transition: var(--transition);
}

.zone-tag:hover {
  background: var(--jaune);
  border-color: var(--jaune);
}

/* ============ FOOTER ============ */
.footer {
  background: var(--bleu-nuit);
  color: var(--blanc);
  padding: 4rem 0 2rem;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--jaune);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand img {
  height: 60px;
  margin-bottom: 1.5rem;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

.footer-col h5 {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  color: var(--jaune);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--jaune);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.footer-legal a:hover {
  color: var(--jaune);
}

/* ============ ANIMATIONS ============ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: 88px;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: calc(100vh - 88px);
    background: var(--blanc);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
  }

  .nav-menu.active {
    right: 0;
  }

  .burger {
    display: flex;
  }

  .about-grid,
  .devis-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    padding-top: 7rem;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 1.25rem;
  }

  .navbar-inner {
    padding: 0.85rem 1.25rem;
  }

  .navbar-logo img {
    height: 44px;
  }

  section {
    padding: 4rem 0;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .about-visual-content .big-number {
    font-size: 7rem;
  }

  .devis-form-wrapper {
    padding: 2rem 1.5rem;
  }

  .zone-intervention {
    padding: 2rem 1.5rem;
  }
}