body {
  font-family: Roboto, sans-serif;
}
header,
main,
footer {
  /* max-width: 1000px; */
  margin: 1rem auto;
  /* border: 1px solid #ccc; */
  padding: 1rem;
}
header,
footer {
  color: white;
  background-color: #2b81e3;
}
header {
  margin-top: 0;
}
footer {
  margin-bottom: 0;
}
main {
  display: grid;
  grid-template-columns: 1fr;
  justify-content: center;
  justify-items: center;
}
h1 {
  text-align: center;
}
img {
  width: 300px;
  height: 300px;
  object-fit: cover;
  padding: 5px;
  background-color: white;
  margin: 1em;
  border: 1px solid #ccc;
  box-shadow: 5px 5px 5px;
}

nav {
  text-align: center;
}

nav a {
  font-size: 1.25em;
  padding: 20px;
  color: white;
  display: none; /* Hidden by default on mobile */
}

nav.show a {
  display: block;
  padding: 10px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

nav a:hover {
  text-decoration: none;
  color: #616061;
  background-color: rgba(255, 255, 255, 0.1);
}
.menu-btn {
  font-size: 1.25em;
  /* padding: 20px; */
  color: white;
  cursor: pointer;
  border: none;
  background-color: transparent;
  display: block;
  margin: 0 auto;
}
button p {
  text-align: center;
}
footer {
  text-align: center;
}
.gallery {
  max-width: 1000px;
  margin: 0 auto;
}
figure img {
  width: 250px;
  height: 250px;
  object-fit: cover;
  padding: 5px;
  background-color: white;
  box-shadow: 5px 5px 15px black;
  display: block;
  margin: 0 auto;
}

/* modal */
dialog {
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
}

/* Make sure the backdrop doesn't interfere */
dialog::backdrop {
  background: transparent;
}

dialog img {
  width: 60vw;
  min-width: 250px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  margin: 20vh auto;
  /* width: 90%;
    max-width: 800px;
    max-height: 800px;
    object-fit: cover;
    display: block;
    margin: 10vh auto; */
}

.close-viewer {
  position: absolute;
  background-color: rgba(0, 0, 0, 0.5);
  color: whitesmoke;
  top: 2rem;
  right: 2rem;
  padding: 0.5rem 1rem;
  font-size: 1.5em;
  border: 1px solid white;
  cursor: pointer;
  z-index: 10; /* Ensure button is on top */
}

@media screen and (min-width: 700px) {
  main {
    grid-template-columns: 1fr 1fr;
  }
  dialog img {
    width: 55vw;
    height: auto;
    aspect-ratio: 1 / 1;
    /* margin: 10vh auto; */
  }

  .close-viewer {
    top: 3rem;
    right: 3rem;
  }
}

@media screen and (min-width: 1000px) {
  main {
    max-width: 1200px;
    grid-template-columns: 1fr 1fr 1fr;
  }
  .menu-btn {
    display: none;
  }
  nav a {
    display: inline;
  }
  dialog img {
    width: 40vw;
    height: auto;
    aspect-ratio: 1 / 1;
    /* margin: 10vh auto; */
  }

  .close-viewer {
    top: 3rem;
    right: 3rem;
  }
  .viewer {
    margin: 50px;
    padding: 50px;
  }
  .viewer img {
    max-width: 800px;
  }
}