body {
  font-family: 'Poppins', sans-serif;
  background-color: #f8f9fa;
}
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
}
main {
  padding-top: 60px;
  padding-bottom: 70px;
}
.app-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 6px 0;
  height: 60px;
  z-index: 1030;
}
.app-bottom-nav a {
  color: #888;
  text-decoration: none;
  font-size: 14px;
  text-align: center;
  flex: 1;
}
.app-bottom-nav a i {
  display: block;
  font-size: 18px;
}
.app-bottom-nav a.active {
  color: #0d6efd;
}
.app-bottom-nav span {
  font-size: 12px;
}

/* Top Header */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background-color: #0d6efd;
  color: white;
  z-index: 1030;
}

.app-header .logo img {
  height: 36px;
}

.app-header .header-icons i {
  font-size: 20px;
  cursor: pointer;
  margin-left: 12px;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: -250px;
  width: 250px;
  height: 100%;
  background: #ffffff; /* Lighter background */
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.3);
  padding-top: 60px;
  transition: 0.3s;
  z-index: 1050;
  border-right: 1px solid #e0e0e0;
}

/* General link style */
.sidebar a {
  display: block;
  padding: 15px 20px;
  color: #333;
  font-size: 17px;
  font-weight: 500;
  text-decoration: none;
  transition: 0.3s;
}

/* Contact Us link specifically */
.sidebar a[href*="contact_us"] {
  background-color: #0078d7; /* Bright blue */
  color: #fff;
  border-radius: 6px;
  margin: 10px 15px;
  text-align: center;
}

/* Hover effects */
.sidebar a:hover {
  background: #0d6efd;
  color: #fff;
}

/* Icon spacing */
.sidebar a i {
  margin-right: 10px;
  font-size: 18px;
}

/* Sidebar visible */
.sidebar.show {
  left: 0;
}

/* Dark mode */
body.dark-mode { background: #121212; color: #f0f0f0; }
body.dark-mode .app-bottom-nav { background: #1e1e1e; border-top-color: #333; }
body.dark-mode .app-bottom-nav a { color: #f0f0f0; }
body.dark-mode .app-bottom-nav a.active { color: #ffc107; }

/* Main content padding for top & bottom bars */
main { padding-top: 70px; padding-bottom: 70px; }