/* Critical CSS for preventing layout shifts */

/* Basic body and container setup */
body {
  padding-top: 70px;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Navigation elements */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1030;
  background-color: #2e86c1;
  height: 60px;
}

/* Container dimensions */
.container {
  width: 100%;
  box-sizing: border-box;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

/* Navigation logo placeholders */
.navb-icon.stem-logo {
  width: 88px;
  height: 40px;
  display: inline-block;
}

.navb-icon.polyu-logo {
  width: 72px; 
  height: 32px;
  display: inline-block;
}

/* Content area placeholders */
.jumbotron {
  min-height: 300px;
  background-color: #f8f9fa;
  padding: 2rem 1rem;
}

/* Welcome text placeholders */
.welcomefont {
  min-height: 2.5em;
  margin-bottom: 1em;
  display: block;
  font-size: 1.5em;
}