.header-v1 {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 0, 31, 0.85);
  border-bottom: 1px solid rgba(0, 255, 234, 0.2);
  box-shadow: 0 4px 30px rgba(0, 255, 234, 0.15);
}

.header-v1 .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1400px;
  /* width: 100%; */
  margin: 0 auto;
  padding: 1rem 2rem;
}

.logo-text {
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(90deg, #00ffea, #ff00aa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.highlight { color: #ff00aa; }

.nav-menu ul {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent-color, #00ffea);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -6px;
  left: 0;
  background: var(--accent-color, #00ffea);
  transition: width 0.3s;
}

.nav-menu a:hover::after { width: 100%; }

.user-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.balance {
  background: rgba(0, 255, 234, 0.15);
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  font-weight: bold;
  color: #00ffea;
}

.btn-login, .btn-signup {
  padding: 0.7rem 1.5rem;
  border-radius: 50px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

.btn-login {
  background: transparent;
  border: 2px solid #00ffea;
  color: #00ffea;
}

.btn-login:hover { background: #00ffea; color: #ffffff; }

.btn-signup {
  background: #ff00aa;
  border: none;
  color: white;
}

.btn-signup:hover { background: #ff3399; color: #ffffff; transform: translateY(-2px); }

.burger-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.burger-menu span {
  width: 28px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: all 0.3s;
}

/* Мобильная адаптация */
@media (max-width: 992px) {
  .nav-menu, .user-actions { display: none; }
  .burger-menu { display: flex; }

  /* Бургер-меню открытие — нужно добавить JS в конструктор или в preview */
}