body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to right top, #f0f2f5, #e0e7ee);
  color: #2c3e50;
  margin: 0;
  padding: 0;
}

.container.content-section {
  background: linear-gradient(135deg, #ffffff, #f9f9f9);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  padding: 60px 50px;
  margin-top: 90px;
  transition: all 0.3s ease;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}
.container.content-section:hover {
  transform: scale(1.01);
}

h2 {
  font-weight: 800;
  font-size: 2.2rem;
  color: #0d6efd;
  margin-bottom: 30px;
  position: relative;
}
h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background-color: #0d6efd;
  margin-top: 10px;
  border-radius: 2px;
}

p {
  font-size: 1.15rem;
  line-height: 1.9;
  color: #444;
  margin-bottom: 20px;
}

footer {
  background-color: #ffffff;
  color: #333;
  padding: 18px 30px;
  margin: 50px auto 30px;
  border: 1px solid #ccc;
  border-radius: 14px;
  max-width: 800px;
  text-align: center;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
}
footer p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: #555;
}

html {
  scroll-behavior: smooth;
}
.navbar {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
.navbar-brand {
  font-weight: 700;
  color: #000 !important;
  letter-spacing: 0.6px;
}
.nav-link {
  font-weight: 500;
  color: #000 !important;
  transition: color 0.3s ease;
}
.nav-link:hover,
.nav-link.active {
  color: #0d6efd !important;
}

/* Submenu Styles */
.dropdown-menu {
  display: none;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  padding: 12px 0;
}
.dropdown-menu.show {
  display: block;
}
.submenu {
  padding-left: 20px;
}
.back-arrow {
  font-weight: bold;
  color: #0d6efd;
  cursor: pointer;
  padding-left: 10px;
}
.dropdown-item {
  padding: 12px 22px;
  transition: background-color 0.2s ease;
  font-weight: 500;
  color: #333;
}
.dropdown-item:hover {
  background-color: #f0f0f0;
  color: #0d6efd;
}

@media (max-width: 768px) {
  .container.content-section {
    margin-top: 70px;
    padding: 35px 20px;
  }
  h2 {
    font-size: 1.7rem;
  }
  p {
    font-size: 1rem;
  }
  footer {
    max-width: 90%;
    margin: 40px auto 20px;
  }
}

/* ----------- Inquiry Modal ----------- */
.modal-custom {
  display: none; 
  position: fixed; 
  z-index: 1050; 
  left: 0; 
  top: 0; 
  width: 100%; 
  height: 100%; 
  overflow: auto; 
  background-color: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
}
.modal-content-custom {
  background-color: #fff;
  padding: 20px;
  border-radius: 12px;
  max-width: 600px;
  width: 100%;
}