/* 共通スタイル */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;

  background-color: #dcdcdc;
  color: #000000;
  font-weight: bold;
/*  font-size:min(1.4vw,20px); */
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  padding: 0.5em 1em;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 20px;
  color: #000000;
}

.nav-links a {
  color: #000000;
  text-decoration: none;
}

.hamburger {
  display: none;
  font-size:min(2.2vw,18px);
  cursor: pointer;
   background-color: #f0f0f0;
}

.responsive-image {
    max-width: 30px;
}
@media screen and (max-width: 640px) {

/* header */

  .nav-links {
    display: none;
    flex-direction: column;
    background-color: #c0c0c0;
    width: 80%;
    position: absolute;
    top: 30px;
    left: 0;
    padding: 10px;
    margin: 5%;
	font-size: 1rem;
  }

  .nav-links.active {
    display: flex;
  }

  .hamburger {
    display: block;
	  font-size:min(6vw);
  }

}