body {
  margin: 0;
  min-height: 100vh;
  background: #f7f5ef;
  color: #111;
  font-family: Georgia, serif;
}

header {
  width: min(900px, 90vw);
  margin: 32px auto 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 2px solid #111;
  padding-bottom: 16px;
}

.site-title {
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #111;
  text-decoration: none;
  white-space: nowrap;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

nav a {
  color: #111;
  text-decoration: none;
}

nav a:hover {
  opacity: 0.6;
}

.notice a {
  color: #111;
}

.notice a:hover {
  opacity: 0.6;
}

nav .dropdown {
  position: relative;
}

nav .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #f7f5ef;
  border: 2px solid #111;
  padding: 12px;
  z-index: 10;
}

.nav-item-with-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
}

.dropdown-toggle {
  background: none;
  border: none;
  padding: 0;
  color: #111;
  font-family: Georgia, serif;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
}

.dropdown-toggle:hover {
  opacity: 0.6;
}

.dropdown.open > .dropdown-menu {
  display: block;
}

nav .dropdown-menu a {
  display: block;
  padding: 6px 0;
  white-space: nowrap;
}

nav .nested-menu {
  top: -14px;
  left: 100%;
}

main {
  width: min(900px, 90vw);
  border: 2px solid #111;
  padding: 48px;
  box-sizing: border-box;
  position: relative;
  margin: 0 auto 48px;
  min-height: 520px;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 8vw, 88px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.dept {
  margin-top: 8px;
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.notice {
  margin-top: 96px;
  font-size: 18px;
  line-height: 1.6;
  max-width: 540px;
}

.code {
  margin-top: 48px;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.logo {
  position: absolute;
  right: 48px;
  bottom: 48px;
  width: 170px;
  opacity: 0.9;
}

.division-directory {
  margin-top: 32px;
  margin-bottom: 32px;

  border-top: 1px solid #111;
  border-bottom: 1px solid #111;

  padding: 12px 0;
}

.division-directory-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;

  margin-bottom: 8px;
}

.division-directory-links {
  font-size: 14px;
  line-height: 1.5;
}

.division-directory-links a {
  color: #111;
  text-decoration: none;
}

.division-directory-links a:hover {
  opacity: 0.6;
}

.division-directory-links a.current {
  font-weight: bold;
}

.division-directory-links a.parent {
  text-decoration: underline;
}

#division-directory + .notice {
  margin-top: 48px;
}

@media (max-width: 700px) {
  header {
    display: block;
  }

  nav {
    justify-content: flex-start;
    margin-top: 16px;
  }

  main {
    padding: 32px;
  }

  h1 {
    font-size: clamp(32px, 7vw, 56px);
  }

  .division-directory-title {
    font-size: 10px;
  }

  .division-directory-links {
    font-size: 12px;
  }

  .notice {
    margin-top: 64px;
  }

  .logo {
    position: static;
    display: block;
    width: 120px;
    margin: 48px auto 0;
  }

  .dropdown-menu {
    position: static;
    border: none;
    padding: 8px 0 8px 16px;
  }

  .nested-menu {
    position: static;
    padding-left: 16px;
  }
  
}