.header {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  width: 100%;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-blue);
}

.logo-icon {
  font-size: 28px;
}

.logo-image {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.nav {
  display: flex;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--text-dark);
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
  position: relative;
}

.nav-link:hover {
  color: var(--primary-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-blue);
  transition: width 0.3s;
}

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

.header-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn-login,
.btn-signup {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s;
}

.btn-login {
  color: var(--text-dark);
  background: transparent;
}

.btn-login:hover {
  color: var(--primary-blue);
  background: var(--soft-blue);
}

.btn-signup {
  background: var(--primary-blue);
  color: white;
}

.btn-signup:hover {
  background: var(--dark-blue);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
  .header-content {
    flex-wrap: wrap;
    gap: 16px;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: space-around;
    gap: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
  }

  .header-actions {
    gap: 8px;
  }

  .btn-login,
  .btn-signup {
    padding: 8px 16px;
    font-size: 13px;
  }
}