:root {
  --color-primary: #0099d5;
  --color-secondary: #f17f29;
  --color-tertiary: #4caf50;
  --color-top-background: #ecfaff;
}
 
html {
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased'
}

section.top
{
  background-color: var(--color-top-background);
}

section {
  padding: 1em; 
}

body {   margin:0; padding:0; }
    
header {
   
  background-color: var(--color-primary);
  font-size:24px;
  box-shadow: 0 2px 20px #0003;
  position: relative; /* or absolute/fixed if needed */
  z-index: 10;   
}


.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px 12px 24px;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-inner > a {
  margin-right: auto;
}

header .logo {
  padding: 4px;
  
}

.button 
{
  text-decoration: none;  
  padding: 8px 20px 8px 20px;
  background-color: var(--color-secondary);
  color: white;
  border: none;
  border-radius: 20px;
  font-size: 16px;
}
.button.btn-primary {
  background: var(--color-primary);
  color: white;
}

.button.btn-secondary {
  background: var(--color-secondary);
  color: white;
}


.button.btn-tertiary {
  background: var(--color-tertiary);
  color: white;
}



.button:hover {
  background-color: white;
  color: black;
}

header img {
  height: 40px;               /* keeps logo size consistent */
}
    

    main { 
      
      font-size: 1.5em;
      color: #555555;
    }