:root {
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-weight: 400;
  font-size: 16px;

  --color-black: #000;
  --color-dark: #777;
  --color-gray: #ddd;
  --color-light: #fcfcfc;
}

@media (max-width: 1000px) {
  :root {
    font-size: 15px;
  }
}

#app {
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

#appLayoutGrid {
  width: 100%;
  height: 100%;
  margin: 0;
  display: grid;
  grid-template-columns: 100%;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "app-nav"
    "app-content"
    "app-footer";
}

#appLayoutGrid > * {
  min-width: 0;
  min-height: 0;
  position: relative;
}

#appNav {
  grid-area: app-nav;
  z-index: 1;
}

#appNav .nav-container {
  display: flex;
  align-items: center;
  padding: 10px;
  background: var(--color-light);
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.4),
    -3px -3px 3px rgba(73, 73, 73, 0.4);
}

#appNav .nav-container .nav-item-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

#appNav .nav-container .nav-item-wrapper .nav-item {
  display: block;
  padding: 0 10px;
  position: relative;
}

#appNav .nav-container .nav-item-wrapper .nav-item .nav-item__link {
  display: block;
  line-height: 1.5;
  font-size: 1.25em;
  font-weight: 500;
  text-decoration: none;
}

#appNav .nav-container .nav-item-wrapper .nav-item .nav-item__dropdown {
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms;
  position: absolute;
  top: 100%;
  left: 0;
  width: 400%;
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.4),
    -3px -3px 3px rgba(73, 73, 73, 0.4);
}

#appNav .nav-container .nav-item-wrapper .nav-item:hover .nav-item__dropdown {
  opacity: 1;
  pointer-events: auto;
}

#appNav
  .nav-container
  .nav-item-wrapper
  .nav-item
  .nav-item__dropdown
  .nav-item__sublink {
  display: block;
  padding: 0 10px;
  line-height: 1.8;
  font-size: 1.1em;
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--color-black);
  background: var(--color-light);
  transition: background 300ms;
}

#appNav
  .nav-container
  .nav-item-wrapper
  .nav-item
  .nav-item__dropdown
  .nav-item__sublink:hover {
  background: var(--color-gray);
}

#appNav .nav-container .nav-spacer {
  flex: 1 0 0;
}

#appNav .nav-container .nav-collapser {
  font-family: Material Icons, serif;
  font-size: 2.3rem;
  line-height: 1;
  display: none;
  user-select: none;
  cursor: pointer;
}

@media (max-width: 1000px) {
  #appNav .nav-container {
    padding: 5px 10px;
  }

  #appNav .nav-container .nav-item-wrapper {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-light);
    z-index: -1;
    padding: 5px 0 0 0;
    gap: 0;

    transition: transform 300ms;
  }

  #appNav .nav-container.nav-container--collapsed .nav-item-wrapper {
    transform: translateY(-100%);
  }

  #appNav .nav-container .nav-item-wrapper .nav-item {
    text-align: center;
    padding: 0;
  }

  #appNav .nav-container .nav-item-wrapper .nav-item .nav-item__link,
  #appNav
    .nav-container
    .nav-item-wrapper
    .nav-item
    .nav-item__dropdown
    .nav-item__sublink {
    line-height: 2;
    border-bottom: 1px solid var(--color-dark);
  }

  #appNav .nav-container .nav-item-wrapper .nav-item .nav-item__link:hover,
  #appNav
    .nav-container
    .nav-item-wrapper
    .nav-item
    .nav-item__dropdown
    .nav-item__sublink:hover {
    text-decoration: underline;
  }

  #appNav .nav-container .nav-item-wrapper .nav-item .nav-item__dropdown {
    position: static;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    opacity: 1;
    pointer-events: auto;
    box-shadow: none;
    width: 100%;
  }

  #appNav
    .nav-container
    .nav-item-wrapper
    .nav-item
    .nav-item__dropdown
    .nav-item__sublink,
  #appNav
    .nav-container
    .nav-item-wrapper
    .nav-item
    .nav-item__dropdown
    .nav-item__sublink:hover {
    background: var(--color-gray);
  }

  #appNav .nav-container .nav-collapser {
    display: block;
  }
}

#appContent {
  grid-area: app-content;
  background: var(--color-gray);
  overflow: hidden auto;
  padding: 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr;
  gap: 25px;
}

@media (max-width: 1000px) {
  #appContent {
    grid-template-columns: 1fr;
    grid-template-rows: min-content min-content;
  }
}

.app-content__container {
  min-width: 0;
  min-height: 0;
  padding: 15px;
  background: var(--color-light);
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.4),
    -3px -3px 3px rgba(73, 73, 73, 0.4);
}

#appContent .header {
  color: var(--color-black);
  font-size: 1.8rem;
  line-height: 2;
  font-weight: 600;
}

#appContent .subheader {
  color: var(--color-black);
  font-size: 2.2rem;
  line-height: 2;
  font-weight: 800;
}

#appContent .text {
  color: var(--color-dark);
  font-size: 1rem;
  line-height: 1.5;
}

@media (max-width: 1400px) {
  #appContent .header {
    font-size: 1.5rem;
    line-height: 2;
  }

  #appContent .subheader {
    font-size: 2rem;
    line-height: 2;
  }

  #appContent .text {
    line-height: 1.3;
  }
}

#appContent .img-container {
  margin: 1rem 0;
  width: 100%;
  height: 200px;
  background: url("../../assets/desert-road.jpg") center / cover no-repeat local;
}

#appContent .form {
  background: var(--color-gray);
  color: var(--color-black);
  font-size: 1.1rem;
  line-height: 1.5;
  padding: 10px;
  margin: 1rem 0;
}

#appContent .form .lead {
  color: var(--color-black);
  font-weight: 500;
}

#appContent .form .form__name {
  color: var(--color-dark);
}

#appContent .form .form__name .form__name__input {
  width: 100%;
  box-sizing: border-box;
}

#appContent .form .form__description {
  display: flex;
  flex-flow: column nowrap;
}

#appContent .form .form__description .form__description__textarea {
  margin: 0;
  width: 100%;
  height: 7rem;
  box-sizing: border-box;
  resize: none;
}

#appContent .form .form__name .form__name__input,
#appContent .form .form__description .form__description__textarea {
  outline: none;
}

#appContent .form .form__name .form__name__input:focus,
#appContent .form .form__description .form__description__textarea:focus {
  outline: none;
}

#appContent .form .form__age {
  grid-area: age;
}

#appContent .form .form__options {
  grid-area: options;
}

#appContent .form .form__submit {
  grid-area: submit;
  place-self: start;
  color: var(--color-black);
  padding: 0 5px;
  font-size: 1rem;
  line-height: 1.5;
  font-weight: 600;
  cursor: pointer;
}

#appContent .grid-table {
  display: grid;
  grid-template-columns: repeat(20, minmax(70px, 1fr));
  grid-auto-rows: auto;
  color: var(--color-black);
  overflow: auto;
}

#appContent .grid-table > * {
  min-width: 0;
  min-height: 0;
  font-size: 1rem;
  line-height: 1.5;
  text-align: center;
  border-bottom: 1px solid var(--color-dark);
}

#appContent .grid-table .grid-table__header {
  font-weight: 600;
  border-bottom: none;
}

#appFooter {
  grid-area: app-footer;
  display: flex;
  gap: 1px;
  background: var(--color-dark);
  border-top: 10px solid var(--color-light);
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.4),
    -3px -3px 3px rgba(73, 73, 73, 0.4);
}

#appFooter > * {
  flex-grow: 1;
  background: var(--color-light);
  padding: 0 30px;
  font-size: 1rem;
  line-height: 4;
  color: var(--color-dark);
  font-weight: 600;
}

@media (max-width: 1000px) {
  #appFooter > * {
    padding: 0;
    text-align: center;
  }
}