/* Неоновые линии по краям */
body.with-neon-lines::before,
body.with-neon-lines::after {
  content: "";
  position: fixed;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #0ff, #f0f, #0ff);
  box-shadow: 0 0 20px #0ff, 0 0 40px #f0f;
  z-index: 9999;
}
body.with-neon-lines::before {
  left: 0;
}
body.with-neon-lines::after {
  right: 0;
}

/* Карточки тарифов */
.tariffs {
  display: flex;
  justify-content: center;
  gap: 30px;
  padding: 50px;
}
.tariff-card {
  background: rgba(0, 0, 0, 0.7);
  border: 2px solid #0ff;
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  color: #fff;
  box-shadow: 0 0 20px #0ff;
  flex: 1;
}
.price {
  font-size: 1.5em;
  margin: 15px 0;
  color: #0ff;
}
.btn-order {
  background: transparent;
  border: 2px solid #0ff;
  padding: 10px 20px;
  border-radius: 10px;
  color: #fff;
  cursor: pointer;
  transition: 0.3s;
}
.btn-order:hover {
  background: #0ff;
  color: #000;
  box-shadow: 0 0 20px #0ff;
}

/* Неоновые вертикальные линии */
.side-line {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #0ff, #f0f);
  box-shadow: 0 0 20px #0ff, 0 0 40px #f0f;
  z-index: 9999;
}
.side-line.left {
  left: 0;
}
.side-line.right {
  right: 0;
}

.side-line.side-left { left: 0; }
.side-line.side-right { right: 0; }