.main-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
}

.main-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

@media (max-width: 700px) {
  .main-nav {
    position: static;
  }

  body {
    padding-bottom: 0;
  }
}

.mobile-bottom-menu {
  display: none;
}

.menu-icon {
  width: 22px;
  height: 22px;
  display: block;
}

.menu-label {
  font-size: 12px;
  letter-spacing: 0.5px;
}

@media (max-width: 767px) {
  .main-nav {
    display: none;
  }

  body {
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
  }

  .mobile-bottom-menu {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: 72px;
    padding-bottom: env(safe-area-inset-bottom);
    background: #fff;
    border-top: 4px solid #2C3E50;
    box-shadow: 0 -4px 0 #2C3E50;
    z-index: 1100;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    position: fixed;
  }

  .mobile-bottom-menu::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 26px;
    pointer-events: none;
    background: linear-gradient(270deg, #fff 0%, rgba(255, 255, 255, 0) 100%);
  }

  .mobile-bottom-menu .menu-item {
    flex: 1 1 0;
    min-width: 72px;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
  }

  .mobile-bottom-menu .menu-icon {
    width: 22px;
    height: 22px;
  }

  .mobile-bottom-menu .menu-label {
    display: block;
    font-size: 10px;
    line-height: 1;
    letter-spacing: 0.4px;
  }
}