*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
}

:root { 
  --primary-clr: #0f7544;
  --secondary-clr: #2cb7d7;
  --secondary-contrast-clr: #0000CC;
  --accent-clr: #fecf17;
  --dark-clr: #0b0a07;
  --light-clr: #fcefef;
}

html { 
  font-family: system-ui, sans-serif;
  line-height: 1.6;
}

body { 
  background-color: var(--primary-clr);
}

p { 
  margin-block: 1rem;
}

a[href^="http"]::after { 
  display: inline-block;
  content: " ";
  height: 1rem;
  width: 1rem;
  margin-left: 4px;
  background: url("/assets/external-link.svg") center no-repeat;
  background-size: contain;
}

.header { 
  background-color: var(--secondary-clr);
}

.header__contents { 
  display: grid;
  grid-template-columns: 96px 1fr;
 
  max-width: 50rem;
  padding: 8px;
  margin-inline: auto;
}

.header a { 
  color: var(--secondary-contrast-clr);
}

.header__logo { 
  padding: 8px;
  border-radius: 50%;
  max-width: 90px;
  height: auto;
  aspect-ratio: 1/1;

  background-color: white;
}

.header__title { 
  padding: 16px;
}

.primary-nav { 
  position: sticky;
  top: 0;

  background-color: var(--secondary-clr);
}

.primary-nav__toggle { 
  display: none;
}


.primary-nav__menu { 
  list-style: none;

  display: flex;
  justify-content: space-around;

  max-width: 50rem;
  margin-inline: auto;

  padding: 0;
}

.primary-nav a { 
  display: inline-block;

  padding: 8px;

  color: var(--secondary-contrast-clr);
}

.primary-nav a:hover, 
.primary-nav a:focus { 
  background-color: var(--accent-clr);
}

.main { 
  display: flex;
  flex-direction: column;
  gap: 1rem;

  max-width: 50rem;
  margin-inline: auto;
  padding-block: 1rem;
}

.main h2 {
  padding: 16px;
  border-radius: 1rem;

  background-color: var(--light-clr);
}


.main__section { 
  padding: 16px;
  border: 1px solid black;
  border-radius: 1rem;

  background-color: var(--light-clr);

  scroll-margin-top: calc(1.6 * 1lh);
}

.main__section h2 {
  font-size: 1.4rem;
  scroll-margin-top: calc(1.6 * 1lh);
}

.main__section h3 {
  font-size: 1.25rem;
  scroll-margin-top: calc(1.6 * 1lh);
}

.main__section h4 { 
  font-size: 1.15rem;
  scroll-margin-top: calc(1.6 * 1lh);
}

.main__section.main__section--with-poster { 
  display: grid;
  grid-template-columns: auto 1fr;
  grid-auto-flow: dense;
  gap: 1rem;
}

.main__section--with-poster .main__title { 
  grid-column: span 2;
}


.footer { 
  display: grid;
  place-items: center;

  padding: 16px;

  background-color: var(--secondary-clr);
}

.footer a { 
  color: var(--secondary-contrast-clr);
}

/* .footer dl { */ 
/*   display: grid; */
/*   grid-template-columns: auto 1fr; */
/* } */

/* .footer dt { */ 
/*   font-weight: bold; */
/* } */

/* .footer dd { */ 
/*   padding-inline-start: 4ch; */
/* } */

.footer__links { 
  display: flex;
  gap: 1rem;

  padding: 0;
  margin: 0;

  list-style-type: none;
}

.footer__email { 
  display: flex;
  flex-direction: column;

  padding: 0;
  margin: 0;

  list-style-type: none;
}


@media (max-width: 40rem) { 

  .primary-nav {
    position: fixed;
    right: 16px;
    top: 16px;

    background-color: transparent;
  }

  .primary-nav__menu { 
    position: absolute;
    right: 0;

    flex-direction: column;

    margin-top: 20px;
    width: max-content;
    border-radius: 16px;

    overflow: hidden;

    background-color: var(--secondary-clr);

    transform: rotateX(90deg);
  }

  .primary-nav__toggle[aria-expanded=true] + .primary-nav__menu {
    transform: rotateX(0deg);
  }

  .primary-nav__toggle { 
    appearance: unset;

    display: flex ;
    flex-direction: column;

    border: none;
    border-radius: 8px;

    background-color: var(--light-clr);
  }

  .primary-nav__item a { 
    display: block;
  }

  .footer__links { 
    flex-direction: column;
    gap: 0;
  }
}

@media(prefers-reduced-motion: no-preference) { 
  .primary-nav__menu { 
    transform-origin: top;
    transition: transform 0.2s linear;
  }

}