html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
}

/* Header fixed height */
.header { 
  padding: 20px;
  background: #EBF8FF;
}

.header-p {
  margin: 0;
  color: #495e6d;
  font-size: 24px;
}

/* Middle content (logo) does NOT stretch */
main {
  flex-shrink: 0;
}

/* Logo spans full viewport width */
.logo {
  width: 100vw;
  display: block;
}

/* Footer fills leftover space */
.footer {
  background: #495e6d;
  padding: 20px;
  flex: 1; /* makes it grow to fill the rest */
  display: flex;
  justify-content: right;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.footer-p {
  color: white;
  margin: 10px;
}