.background-base {
  min-height: 100vh;
  width: 100%;
  margin: 0 auto;
}

.container-base {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.container-base > header {
  position: relative;
  height: 10vh;
  width: 100%;
  margin: 0 auto;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.site-nav {
  position: relative;
  z-index: 100;
}

.site-nav > ul {
  list-style: none;
  margin: 0;
  padding: 0;

  display: flex;
  gap: 1rem;
}

.site-nav > ul > li {
  position: relative;
}

.site-nav > ul > li > a {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  text-decoration: none;
  color: #000;
  transition: background 0.2s, color 0.2s;

  font-family: "Inter-Regular", Helvetica;
}

.site-nav > ul > li > a:hover,
.site-nav > ul > li > a:focus {
  background: #eee;
  color: #333;
  outline: none;
}

.site-nav > ul > li > ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;

  background: #fff;
  border: 1px solid #ddd;
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;

  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  min-width: 200px;
  z-index: 200;
}

.site-nav > ul > li > ul > li > a {
  display: block;
  padding: 0.5rem 1rem;
  text-decoration: none;
  color: #000;
  font-size: clamp(12px, 1vw, 16px);
  transition: background 0.2s;
}

.site-nav > ul > li > ul > li > a:hover,
.site-nav > ul > li > ul > li > a:focus {
  background: #f2f2f2;
  outline: none;
}

.site-nav .has-submenu:hover > ul {
  display: block;
}

.container-base > footer {
  height: 10vh;
  width: 100%;

  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 600px) {
  .site-nav > ul {
    gap: 0.25rem;
  }

  .site-nav > ul > li > a {
    padding: 0.5rem 0.3rem;
    font-size: 14px;
  }
}