body {
  margin: 0;
  background: #eeeeee;
  color: #111;
  font-family: Arial, Helvetica, sans-serif;
}

main {
  max-width: 680px;
  margin: 28px auto 18px;
  padding: 0 18px;
}

header {
  text-align: center;
}

.logo {
  display: block;
  width: min(300px, 80vw);
  height: auto;
  margin: 0 auto 10px;
}

h1 {
  margin: 0 0 6px;
  font-size: 2rem;
}

.slogan {
  margin: 0 0 24px;
}

hr {
  border: 0;
  border-top: 1px solid #999;
  margin: 0 0 22px;
}

.tools {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.tool {
  padding: 16px;
  background: #fff;
  border: 1px solid #999;
}

.tool h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
}

.tool p {
  min-height: 48px;
  margin: 0 0 14px;
  line-height: 1.4;
}

.button {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid #666;
  background: #f7f7f7;
  color: #0000aa;
  text-decoration: none;
}

.button:hover {
  background: #fff;
  text-decoration: underline;
}

footer {
  max-width: 680px;
  margin: 0 auto;
  padding: 10px 18px 22px;
  border-top: 1px solid #bbb;
  color: #666;
  font-size: 0.75rem;
  text-align: center;
}

footer a {
  color: #555;
}

@media (max-width: 560px) {
  .tools {
    grid-template-columns: 1fr;
  }

  .tool p {
    min-height: 0;
  }
}