* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Montserrat', Arial, sans-serif;
  background: #eef5fc;
  color: #003366;
  text-align: center;
}

/* TOP BLUE BANNER */
.top-banner {
  background: linear-gradient(90deg, #bcd9f3, #9fc3e6);
  padding: 18px 0;
}

  
/* NAVIGATION */
.nav {
  width: 92%;
  max-width: 1200px;
  margin: auto;
  background: white;
  border-radius: 14px;
  padding: 18px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 135px;
  width: auto;
}

.links a {
  margin: 0 18px;
  color: #003366;
  text-decoration: none;
  font-size: 21px;
  font-weight: 700;
}

.links a:hover {
  color: #007BFF;
}

/* HOME SKYLINE */
.hero {
  height: 470px;
  background: url("images/city-skyline.jpg") center center / cover no-repeat;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.dark {
  position: absolute;
  inset: 0;
  background: rgba(0, 35, 75, 0.48);
}

.hero-text {
  position: relative;
  color: white;
  padding: 30px;
}

.hero-text h1 {
  font-size: 60px;
  line-height: 1.1;
  margin: 0 0 20px;
  font-weight: 800;
}

.hero-text p {
  font-size: 28px;
  margin: 0;
  font-weight: 600;
}

/* PAGE LAYOUT */
.main {
  width: 92%;
  max-width: 950px;
  margin: auto;
  padding: 70px 0;
}

.main.wide {
  max-width: 1200px;
}

/* TEXT BOXES */
.box {
  background: white;
  border-radius: 18px;
  padding: 48px;
  margin-bottom: 34px;
  box-shadow: 0 10px 25px rgba(0, 51, 102, 0.12);
  border: 1px solid #d8e8f8;
}

.large-box h1 {
  font-size: 46px;
  margin-top: 0;
  margin-bottom: 20px;
}

.large-box h2 {
  font-size: 38px;
  margin-top: 0;
  margin-bottom: 20px;
}

.large-box p {
  font-size: 23px;
  line-height: 1.75;
  margin: 0 0 18px;
}

/* ABOUT IMAGE */
.image-box {
  padding: 24px;
}

.van-photo {
  width: 100%;
  height: auto;
  max-height: 650px;
  object-fit: contain;
  border-radius: 14px;
  margin: auto;
}

/* SERVICES */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 34px;
}

.service-box {
  background: white;
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 10px 25px rgba(0, 51, 102, 0.12);
  border: 1px solid #d8e8f8;
}

.service-box img {
  width: 100%;
  height: 300px;
  object-fit: contain;
  background: #f4f8fc;
  border-radius: 14px;
  margin-bottom: 22px;
}

.service-box h2 {
  font-size: 28px;
  margin: 0;
  color: #003366;
}

/* CONTACT FORM */
form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

input,
textarea {
  width: 100%;
  padding: 20px;
  font-size: 21px;
  border-radius: 12px;
  border: 1px solid #bdd3ea;
  font-family: 'Montserrat', Arial, sans-serif;
}

textarea {
  height: 180px;
}

button {
  background: #007BFF;
  color: white;
  border: none;
  padding: 20px;
  border-radius: 12px;
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: #005fc4;
}

/* BOTTOM BLUE BANNER */
.bottom-banner {
  height: 75px;
  background: linear-gradient(90deg, #bcd9f3, #9fc3e6);
  width: 100%;
}

/* MOBILE */
@media (max-width: 900px) {
  .nav {
    flex-direction: column;
    gap: 18px;
  }

  .logo {
    height: 115px;
  }

  .links a {
    font-size: 18px;
    margin: 0 10px;
  }

  .hero-text h1 {
    font-size: 42px;
  }

  .hero-text p {
    font-size: 22px;
  }

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

  .box {
    padding: 32px;
  }

  .large-box h1 {
    font-size: 36px;
  }

  .large-box h2 {
    font-size: 31px;
  }

  .large-box p {
    font-size: 20px;
  }

  .service-box img {
    height: 260px;
  }
}