.signal-mobile-nav {
  display: none;
}

.signal-burger {
  display: none;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.signal-burger span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: #1c2826;
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.signal-mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 9999;
  min-width: 220px;
  margin: 0;
  padding: 10px 0;
  list-style: none;
  background: #ffffff;
  border-top: 3px solid #f24333;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.signal-mobile-menu li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.signal-mobile-menu a {
  display: block;
  padding: 12px 18px;
  color: #1c2826;
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
}

.signal-mobile-menu a:hover {
  color: #f24333;
}

.signal-mobile-nav.is-open .signal-mobile-menu {
  display: block;
}

.signal-mobile-nav.is-open .signal-burger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.signal-mobile-nav.is-open .signal-burger span:nth-child(2) {
  opacity: 0;
}

.signal-mobile-nav.is-open .signal-burger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 980px) {
  #top-menu-nav {
    display: none !important;
  }

  .signal-mobile-nav {
    display: block;
    position: relative;
    float: right;
  }

  .signal-burger {
    display: block;
  }
}