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

body {
  font-family: Arial, sans-serif;
  background: #0b1020;
  color: #ffffff;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 16, 32, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
  width: min(1120px, 92%);
  margin: auto;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 800;
  font-size: 1.3rem;
}

.logo span {
  color: #38bdf8;
}

.links {
  display: flex;
  gap: 24px;
  color: #cbd5e1;
}

.links a:hover {
  color: #38bdf8;
}

.hero {
  width: min(1120px, 92%);
  margin: auto;
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  align-items: center;
  gap: 40px;
  padding: 70px 0;
}

.badge {
  display: inline-block;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 1;
  margin-bottom: 22px;
}

.hero p {
  color: #cbd5e1;
  max-width: 640px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  padding: 13px 20px;
  border-radius: 14px;
  font-weight: 700;
}

.btn-retour-menu {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 9999;
  padding: 12px 18px;
  border-radius: 30px;
  background: #0f172a;
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  transition: 0.3s ease;
}

.btn-retour-menu:hover {
  background: #2563eb;
  transform: translateY(-2px);
}

.primary {
  background: #38bdf8;
  color: #08111f;
}

.secondary {
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #e5e7eb;
}

.hero-card,
.project-card,
.offer {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 26px;
  padding: 28px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
}

.hero-card h2 {
  margin-bottom: 16px;
}

.hero-card li {
  margin: 12px 0;
  color: #dbeafe;
}

.section {
  width: min(1120px, 92%);
  margin: auto;
  padding: 80px 0;
}

.section-title {
  margin-bottom: 28px;
}

.section-title p {
  color: #38bdf8;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.project-grid,
.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.project-card span {
  color: #38bdf8;
  font-weight: 800;
}

.project-card h3,
.offer h3 {
  font-size: 1.5rem;
  margin: 12px 0;
}

.project-card p,
.offer p {
  color: #cbd5e1;
}

.project-card a {
  display: inline-block;
  margin-top: 20px;
  color: #38bdf8;
  font-weight: 800;
}

.price {
  font-size: 1.6rem;
  color: #ffffff !important;
  font-weight: 800;
}

.featured {
  outline: 2px solid #38bdf8;
}

.reseaux {
  padding: 80px 20px;
  text-align: center;
  background: #0f172a;
  color: white;
}

.reseaux h2 {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.reseaux p {
  color: #cbd5e1;
  margin-bottom: 40px;
}

.reseaux-container {
  display: flex;
  justify-content: center;
  gap: 25px;
  flex-wrap: wrap;
}

.reseau-card {
  width: 250px;
  padding: 30px;
  border-radius: 20px;
  background: #111827;
  color: white;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: 0.3s ease;
}

.reseau-card:hover {
  transform: translateY(-8px);
  background: #1e293b;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.35);
}

.reseau-card .icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 15px;
}

.reseau-card h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.reseau-card p {
  margin: 0;
  color: #38bdf8;
  font-weight: 600;
}

.contact {
  width: min(900px, 92%);
  margin: 70px auto;
  text-align: center;
  background: linear-gradient(135deg, #38bdf8, #2563eb);
  color: #06111f;
  border-radius: 32px;
  padding: 56px 24px;
}

.contact h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.contact p {
  margin: 12px 0 24px;
  font-weight: 600;
}

footer {
  text-align: center;
  color: #94a3b8;
  padding: 30px;
}

@media (max-width: 850px) {
  .links {
    display: none;
  }

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

  .project-grid,
  .offer-grid {
    grid-template-columns: 1fr;
  }

  footer {
    text-align: center;
    padding: 25px;
    background: #111;
    color: white;
    font-size: 14px;
  }

  footer strong {
    color: #00c3ff;
  }

  .watermark-logo {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    opacity: 0.25;
    pointer-events: none;
  }

  .watermark-logo img {
    width: 90px;
    height: auto;
    display: block;
  }

  .brand-logo img {
  width: 160px;
  height: auto;
  display: block;
}

}