.startpage {
  width: 100%;
  height: 100%;
}

.startpage-grid {
  width: 100%;
  height: 100%;
  border: var(--border);
  display: grid;
  grid-template-columns: 1fr;
}

.intro,
.dev,
.design,
.art,
.about-cv,
.playground {
  grid-column: auto;
  grid-row: auto;
}

.dev,
.design,
.art,
.about-cv,
.playground {
  text-transform: uppercase;
}

.tile {
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(18px, 2.2vw, 28px);
  line-height: 1.45;
  border-top: var(--border);
  border-left: none;
}
.tile:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}
.tile:hover {
  filter: brightness(0.98);
}
.intro {
  display: flex;
  align-items: center;
  border-top: none;
}

.intro-body {
  max-width: 46ch;
  margin-top: 0.25rem;
  text-align: left;
}
.intro-body a {
  color: inherit;
}

.intro,
a.tile.about-cv {
  border-left: none;
}

.startpage-nav {
  display: contents;
}

@media screen and (width >= 700px) {
  .startpage-grid {
    grid-template-columns: 1.15fr 1fr;
    grid-template-rows: repeat(4, 1fr);
    align-content: start;
  }

  .intro {
    grid-column: 1;
    grid-row: 1 / span 3;
  }

  .tile {
    border-left: var(--border);
    transition: background-color 0.3s ease;
  }

  a.tile.dev {
    border-top: none;
  }

  .intro {
    border-top: none;
    border-left: none;
  }

  .intro-body {
    padding: 2rem;
  }
  .dev {
    grid-column: 2;
    grid-row: 1;
  }

  .design {
    grid-column: 2;
    grid-row: 2;
  }
  .art {
    grid-column: 2;
    grid-row: 3;
  }

  .about-cv {
    grid-column: 1;
    grid-row: 4;
  }
  .playground {
    grid-column: 2;
    grid-row: 4;
  }

  /* hover color-effect */
  .intro:hover {
    background-color: var(--sun);
  }

  .dev:hover {
    background-color: var(--sky-blue);
    letter-spacing: 0.5px;
  }

  .design:hover {
    background-color: var(--orange);
    letter-spacing: 0.5px;
  }

  .art:hover {
    background-color: var(--vintage-green);
    letter-spacing: 0.5px;
  }

  .about-cv:hover {
    background-color: var(--mustard);
    letter-spacing: 0.5px;
  }

  .playground:hover {
    background-color: var(--lime);
    letter-spacing: 0.5px;
  }
}