html {
  scroll-padding-top: 80px;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background: rgba(16, 16, 16, 0.84);
  border-bottom-color: rgba(238, 234, 225, 0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.mark {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--paper);
  padding: 0;
  font-family: Georgia, serif;
  font-size: 1.55rem;
  line-height: 1;
  text-shadow: 0 0 18px rgba(189, 101, 62, 0.25);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.mark-a {
  color: var(--paper);
}

.mark-m {
  color: var(--copper);
  font-style: italic;
}

.mark:hover,
.mark:focus-visible {
  color: var(--copper);
  border-color: var(--copper);
  background: rgba(189, 101, 62, 0.08);
}

.contact-actions {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: 68px;
  }

  .nav {
    position: fixed;
    padding: 0 5vw;
  }

  .mark {
    width: 42px;
    height: 42px;
    font-size: 1.35rem;
  }

  .nav nav {
    background: rgba(16, 16, 16, 0.97);
    padding-left: 5vw;
    padding-right: 5vw;
  }
}