* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: #f2f8ff;
  color: #002b5c;
  line-height: 1.8;
  padding-top: 100px; /* space for fixed top bar */
}

/* Top Bar */
.topbar {
  display: flex;
  align-items: center;
  background: #003366;
  padding: 25px 30px;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: transform 0.3s ease;
}
.topbar.hide {
  transform: translateY(-100%);
}
.logo-title {
  display: flex;
  align-items: center;
}
.logo-title img {
  width: auto;
  height: 100px;
  margin-right: 15px;
}
.site-title {
  color: #ffffff;
  font-size: 2.8rem;
  font-weight: bold;
  white-space: nowrap;
}

/* Sections */
.section {
  padding: 20px 8%;
}
.hero-heading {
  text-align: center;
  padding-top: 3rem;
  font-size: 2.8rem;
  font-weight: bold;
  color: #003366;
  margin-bottom: 20px;
}
.sub-heading {
  text-align: center;
  font-size: 1.6rem;
  font-weight: bold;
  color: #003366;
  margin-bottom: 25px;
}
.main-heading {
  font-size: 2rem;
  font-weight: bold;
  color: #003366;
  margin: 40px 0 20px;
  position: relative;
  padding-bottom: 10px;
}
.main-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: #003366;
}
.section p {
  font-size: 1.05rem;
  margin-bottom: 25px;
  text-align: justify;
}

/* Services zig-zag */
.service {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 50px;
  gap: 30px;
}
.service .image {
  flex: 0 0 320px;
}
.service .image img {
  width: 100%;
  max-width: 320px;
  border-radius: 8px;
  background: #d9e8ff;
  object-fit: cover;
}
.service .text {
  flex: 1;
}
.service.left { flex-direction: row; }
.service.right { flex-direction: row-reverse; }
.service h3 {
  font-size: 1.5rem;
  font-weight: bold;
  color: #004080;
  margin-bottom: 15px;
}

/* ========  MOBILE FIX  ======== */
 @media (max-width: 768px) {
      body {
        padding-top: 80px;
      }
      .topbar {
        padding: 15px 20px;
        flex-wrap: wrap;
      }
      .logo-title img {
        width: 100px;
        height: auto;
      }
      .site-title {
        font-size: 1.8rem;
      }
      .hero-heading { font-size: 1.8rem; }
      .sub-heading  { font-size: 1.2rem; }
      .main-heading { font-size: 1.4rem; }
      .service {
        flex-direction: column;
        text-align: center;
        gap: 20px;
      }
      .service.left,
      .service.right {
        flex-direction: column;
      }
      .service .image {
        flex: unset;
        width: 100%;
        max-width: 420px;
        margin: 0 auto;
      }
      .service .image img {
        max-width: 100%;
        height: auto;
      }
      .main-heading::after {
        width: 100%;
      }
    }