html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  width: 100%;
}
body {
  min-height: 100vh;
  background: #181a20;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', Arial, sans-serif;
  font-size: 2.5rem;
  text-align: center;
  letter-spacing: 0.02em;
}

.center-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.main-title {
  margin-top: 0;
  font-size: 2.5rem;
  color: #fff;
  min-height: unset;
  opacity: 1;
  transition: none;
}

.bitcoin-orange {
  color: #f7931a;
}

.sayings {
  margin-top: 1.5rem;
  font-size: 1.25rem;
  color: #fff;
  min-height: 2.5em;
  opacity: 0;
  transition: opacity 0.6s;
  text-align: center;
}

.fade-in {
  opacity: 1 !important;
  transition: opacity 0.6s;
}

.fade-out {
  opacity: 0 !important;
  transition: opacity 0.6s;
}

.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  text-align: center;
  font-size: 0.9rem;
  color: #888;
  background: transparent;
  padding: 0.75rem 0 0.5rem 0;
  z-index: 10;
  letter-spacing: 0.01em;
  display: block;
  box-sizing: border-box;
  padding-left: 0;
  padding-right: 0;
}
.site-footer a {
  color: #888;
  text-decoration: none;
  transition: color 0.2s;
}
.site-footer a:hover {
  color: #f7931a;
  text-decoration: underline;
}

.footer-logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 0.5rem;
}

.footer-logo {
  height: 40px;
  width: auto;
  display: block;
}

@media (max-width: 600px) {
  body {
    font-size: 1.5rem;
    padding: 1rem;
    margin-top: 0;
  }
  .main-title {
    font-size: 1.5rem;
    padding: 1rem;
    margin-top: 0;
  }
  .sayings {
    font-size: 1rem;
    margin-top: 1rem;
  }
}