hoppscotch/style.css

:root {
  --bg-color: #121212;
  --fg-color: #fff;
  --ac-color: #51FF0D;
}

* {
  box-sizing: border-box;
  outline: 0;
  border: 0;
  font-family: 'Poppins', 'Roboto', 'Noto', sans-serif;
}

::selection {
  background-color: var(--ac-color);
  color: var(--bg-color);
}

@keyframes fadein {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

a {
  display: inline-flex;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
}

body {
  background-color: var(--bg-color);
  color: var(--fg-color);
  font-weight: 500;
  line-height: 1.5;
  animation: fadein .2s;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
}

header,
footer {
  display: flex;
  padding: 16px;
  width: 100%;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: var(--ac-color);
}

main {
  margin: 0 auto;
  max-width: 1200px;
}

button {
  margin: 4px;
  padding: 8px 16px;
  border-radius: 4px;
  background-color: var(--ac-color);
  color: var(--bg-color);
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
}

fieldset {
  margin: 16px 0;
  border: 2px solid var(--fg-color);
  border-radius: 4px;
}

legend {
  color: #57b5f9;
  font-weight: 700;
  cursor: pointer;
}

fieldset textarea {
  resize: vertical;
}

fieldset.request {
  border-color: #57b5f9;
}

fieldset.request legend {
  color: #57b5f9;
}

fieldset.authentication {
  border-color: #B8E986;
}

fieldset.authentication legend {
  color: #B8E986;
}

fieldset.parameters {
  border-color: #50E3C2;
}

fieldset.parameters legend {
  color: #50E3C2;
}

fieldset.reqbody {
  border-color: #4A90E2;
}

fieldset.reqbody legend {
  color: #4A90E2;
}

fieldset.response {
  border-color: #C198FB;
}

fieldset.response legend {
  color: #C198FB;
}

.hidden .collapsible {
  display: none;
}

select,
input,
option,
textarea {
  margin: 4px;
  padding: 8px 16px;
  width: calc(100% - 8px);
  border-radius: 4px;
  background-color: #000;
  color: var(--fg-color);
  font-weight: 700;
  font-size: 18px;
  font-family: monospace;
}

label {
  padding: 4px;
}

ul,
ol {
  display: flex;
  margin: 8px 0 0;
  padding: 0;
  list-style-type: none;
}

ul li,
ol li {
  display: inline-flex;
  flex-direction: column;
  flex-grow: 1;
}

@media (max-width: 720px) {

  ul,
  ol {
    flex-direction: column;
  }

  ul li,
  ol li {
    display: flex;
  }
}