* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f7fa;
  color: #243447;
  line-height: 1.6;
}

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.header {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  gap: 20px;
}

.logo {
  max-width: 120px;
  height: auto;
  display: block;
}

nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

nav a {
  font-weight: 700;
  color: #2b6cb0;
  transition: 0.2s ease;
}

nav a:hover {
  color: #1e4e8c;
}

.hero {
  background: linear-gradient(135deg, #dbeafe 0%, #eff6ff 100%);
  padding: 90px 20px 70px;
  text-align: center;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: 42px;
  line-height: 1.15;
  color: #1f2937;
}

.hero p {
  max-width: 760px;
  margin: 0 auto;
  font-size: 20px;
  color: #475569;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 13px 24px;
  border-radius: 10px;
  background: #2b6cb0;
  color: white;
  font-weight: 700;
  transition: 0.25s ease;
  box-shadow: 0 8px 20px rgba(43, 108, 176, 0.18);
}

.btn:hover {
  background: #1e4e8c;
  transform: translateY(-2px);
}

.btn-light {
  background: #ffffff;
  color: #2b6cb0;
  border: 1px solid #cbd5e1;
  box-shadow: none;
}

.diensten,
.projecten,
.over,
.contact {
  padding: 70px 0;
}

.diensten h2,
.projecten h2,
.over h2,
.contact h2 {
  font-size: 34px;
  margin-top: 0;
  margin-bottom: 18px;
  color: #1f2937;
}

.grid,
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 30px;
}

.card,
.project {
  background: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  border: 1px solid #e5e7eb;
  transition: 0.25s ease;
}

.card:hover,
.project:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.10);
}

.card {
  padding: 26px;
}

.card h3,
.project h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 24px;
  color: #1f2937;
}

.card p,
.project p,
.over p,
.contact p {
  color: #526071;
  font-size: 17px;
}

.project img,
.project-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
}

.project h3 {
  padding: 18px 18px 8px;
  margin: 0;
}

.project p {
  padding: 0 18px 20px;
  margin: 0;
}

.over {
  background: #ffffff;
}

.over .container {
  max-width: 900px;
}

.over ul {
  padding-left: 20px;
  color: #475569;
  line-height: 1.9;
}

.contact {
  background: linear-gradient(180deg, #ffffff 0%, #eef4f8 100%);
  text-align: center;
}

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

.footer {
  background: #1f2937;
  color: white;
  text-align: center;
  padding: 24px 20px;
  font-size: 15px;
}

@media (max-width: 900px) {
  .header .container {
    flex-direction: column;
    align-items: flex-start;
  }

  nav {
    gap: 16px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero p {
    font-size: 18px;
  }
}

@media (max-width: 600px) {
  .logo {
    max-width: 95px;
  }

  .hero {
    padding: 70px 20px 55px;
  }

  .hero h1 {
    font-size: 30px;
  }

  .diensten,
  .projecten,
  .over,
  .contact {
    padding: 55px 0;
  }

  .diensten h2,
  .projecten h2,
  .over h2,
  .contact h2 {
    font-size: 28px;
  }
}