.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 17, 31, 0.94);
  border-bottom: 1px solid rgba(32, 59, 56, 0.72);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(12px);
}

.section[id],
.help section[id] {
  scroll-margin-top: 96px;
}

@media (max-width: 650px) {
  .section[id],
  .help section[id] {
    scroll-margin-top: 82px;
  }
}