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

body {
  display: flex;
  flex-direction: column;
  color: #232b24;
  background: #fff;
  font-family: system-ui, sans-serif;
}

main {
  flex: 1;
  box-sizing: border-box;
  max-width: 39rem;
  margin: 0 auto;
  padding: min(14vh, 7rem) 1.5rem 2rem;
  line-height: 1.65;
}

h1 { font-size: 1.65rem; }

button {
  font: inherit;
  padding: .4rem .85rem;
  border: 1px solid #365d43;
  border-radius: .35rem;
  background: #365d43;
  color: #fff;
  margin: 0 .6rem .6rem 0;
  cursor: pointer;
}

a { color: #275438; }

#dashboard:not(:empty) {
  flex: 1 0 430px;
  position: relative;
}

#dashboard iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

.ad-section {
  box-sizing: border-box;
  padding: .85rem 1rem 1rem;
  border-top: 1px solid #dce5de;
  background: #f6f9f6;
  text-align: center;
}

.ad-disclosure {
  margin: 0 0 .35rem;
  color: #46544a;
  font-size: .82rem;
}

.ad-disclosure strong {
  display: inline-block;
  margin-right: .25rem;
  color: #2e573d;
}

.ad-note {
  max-width: 52rem;
  margin: 0 auto .65rem;
  font-size: .9rem;
  line-height: 1.5;
}

.ad-banner {
  display: block;
  width: min(100%, 680px);
  height: 140px;
  margin: 0 auto;
  border: 0;
}