html, body {
  height: 100%;
  width: 100%;
  scroll-behavior: smooth;
}

header {
  text-align: center;
  height: 95%;
  display: inline-block;
  width: 100%;
}

.top_logo * {
  font-size: 75px;
  font-weight: 600;
  letter-spacing: -0.03em;
  max-height: 75px;
  display: inline-block !important;
}

div.big_logo {
  display: inline-block;
  margin: 10% auto 0 auto;
}

.top_logo img {
  margin: 0 10px -10px 0;
}

header h4 {
  font-family: sans-serif;
  margin-top: -25px;
  /* font-style: italic; */
  font-weight: 500;
}

#down {
  display: inline-block;
  width: 100%;
  text-align: center;
  margin: 18% auto 0 auto;
}

#down img {
  width: 30px;
  height: 30px;
  filter: opacity(20%);
}

hr {
    background-color: #ecebf4;
}

.center {
    text-align: center;
    margin: 0 auto;
}

.center hr {
    width: 100px;
    background-color: #ecebf4;
    border: none;
    margin: 0 auto;
    height: 4px;
}

section.nondev {
  padding: 0% 5%;
  margin: 2% auto 0 auto;
  max-width: 500px;
}

.roald h3 {
    text-align: center;
}

.roald h4 {
    text-align: center;
    font-weight: 500 !important;
}

.roald img {
    max-width: 100%;
    margin: 0 auto;
}

.text-url {
  text-decoration: none;
}

.red-text {
    color: #0432ff;
}
#endorsements {
  display: flex;
  flex-direction: column;
  margin-bottom: 7%;
}

div.endorsements {
  display: flex;
  flex-direction: row;
  max-width: 570px;
  margin: 1.5em auto;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: flex-start;
  row-gap: 40px;
}

#endorsements h3 {
  margin: 30px auto;
  font-size: 22px;
}

div.endorsed {
  text-align: center !important;
  width: 200px;
  display: flex;
  flex-direction: column;
  flex: 0 0 calc(50% - 5px);
}

.endorsed img {
  max-height: 120px;
  margin: 0 auto;
}

.endorsed h4 {
  margin: 13px auto;
}

.endorsed h5 {
  margin: 10px auto auto auto;
}

.endorsed p {
  max-width: 250px;
  text-align: center;
  margin: 0 auto;
  font-size: 0.9em;
}

.about-signature {
  font-family: "Franklin Gothic Medium", "Arial Narrow", Arial, sans-serif;
}

#login_link {
  text-align: center;
  margin-top: 2%;
}

#login_link a {
  text-decoration: none;
  padding: 5px 10px;
  font-family: sans-serif;
  font-weight: bold;
}

#login_link a:hover {
  color: rgba(40, 125, 255, 0.85);
  font-weight: bold;
}

.note {
    font-family: monospace;
    font-size: 13px;
    color: gray;
    margin: 50px auto 20px;
    text-align: center;
}

@media screen and (max-width: 450px) {
  div.big_logo {
    display: inline-block;
    margin: 40% auto 0 auto;
  }

  .top_logo * {
    font-size: 40px;
    font-weight: 600;
    letter-spacing: -0.03em;
    max-height: 45px;
    display: inline-block !important;
  }

  header h4 {
    font-family: sans-serif;
    margin-top: -10px;
    font-weight: 500;
    font-size: 0.9em;
  }

  #down {
    display: inline-block;
    width: 100%;
    text-align: center;
    margin: 38% auto 0 auto;
  }

  div.endorsements {
    max-width: 100%;
  }

  .note {
      font-family: monospace;
      font-size: 13px;
      color: gray;
      margin: 50px auto 20px;
      text-align: center;
  }
}