body {
  height: 100vh;
  margin: 0;
  background: #008080;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Arimo', sans-serif;
  color: #1a1c1c;
  overflow: hidden;
}

label {
  font-family: 'Arimo', sans-serif;
  font-size: 0.75rem;
  line-height: 0.875rem;
  font-weight: 400;
  user-select: none;
}

main {
  background: #c0c0c0;
  width: 25rem;
  max-width: 95vw;
  z-index: 10;
  display: flex;
  flex-direction: column;
  border-top: 0.125rem solid #FFF;
  border-left: 0.125rem solid #FFF;
  border-right: 0.125rem solid #808080;
  border-bottom: 0.125rem solid #808080;
  box-shadow: inset -0.0625rem -0.0625rem 0 0 #000, 0.0625rem 0.0625rem 0 0 #000,
    0 1.5rem 3rem -0.75rem rgba(0, 0, 0, 0.25);
}

header {
  background: #000080;
  color: #FFF;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.125rem 0.25rem;
  margin: 0.125rem;
  user-select: none;
}

h1 {
  font-family: 'Arimo', sans-serif;
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 700;
  margin: 0;
  padding-left: 0.25rem;
  letter-spacing: -0.025em;
}

.title-close {
  width: 0.875rem;
  height: 0.875rem;
  text-decoration: none;
  background: #c0c0c0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1a1c1c;
  padding: 0;
  cursor: pointer;
  border-top: 0.125rem solid #FFF;
  border-left: 0.125rem solid #FFF;
  border-right: 0.125rem solid #808080;
  border-bottom: 0.125rem solid #808080;
  box-shadow: inset -0.0625rem -0.0625rem 0 0 #000, 0.0625rem 0.0625rem 0 0 #000;
}

.title-close:active {
  border-top: 0.125rem solid #808080;
  border-left: 0.125rem solid #808080;
  border-right: 0.125rem solid #FFF;
  border-bottom: 0.125rem solid #FFF;
  box-shadow: inset 0.0625rem 0.0625rem 0 0 #000, -0.0625rem -0.0625rem 0 0 #000;
  padding-top: 0.0625rem;
  padding-left: 0.0625rem;
}

.content {
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-top: 0.0625rem solid #FFF;
  border-left: 0.0625rem solid #FFF;
  border-right: 0.0625rem solid #747878;
  border-bottom: 0.0625rem solid #747878;
  margin: 0.125rem;
}

.controls {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 0.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  width: 6rem;
}

input {
  background: #FFF;
  font-family: 'Courier Prime', monospace;
  font-size: 0.75rem;
  line-height: 1rem;
  padding: 0.125rem 0.25rem;
  width: 100%;
  border-top: 0.125rem solid #808080;
  border-left: 0.125rem solid #808080;
  border-right: 0.125rem solid #FFF;
  border-bottom: 0.125rem solid #FFF;
  box-shadow: inset 0.0625rem 0.0625rem 0 0 #000, -0.0625rem -0.0625rem 0 0 #000;
}

input:focus {
  outline: none;
}

.generate-btn {
  background: #c0c0c0;
  cursor: pointer;
  font-family: 'Arimo', sans-serif;
  font-size: 0.75rem;
  line-height: 0.875rem;
  font-weight: 400;
  padding: 0.25rem 0.5rem;
  height: 1.75rem;
  border-top: 0.125rem solid #FFF;
  border-left: 0.125rem solid #FFF;
  border-right: 0.125rem solid #808080;
  border-bottom: 0.125rem solid #808080;
  box-shadow: inset -0.0625rem -0.0625rem 0 0 #000, 0.0625rem 0.0625rem 0 0 #000;
}

.generate-btn:focus {
  outline: none;
}

.generate-btn:active {
  border-top: 0.125rem solid #808080;
  border-left: 0.125rem solid #808080;
  border-right: 0.125rem solid #FFF;
  border-bottom: 0.125rem solid #FFF;
  box-shadow: inset 0.0625rem 0.0625rem 0 0 #000, -0.0625rem -0.0625rem 0 0 #000;
  padding: 0.25rem 0.5rem;
}

hr {
  width: 100%;
  height: 0.125rem;
  border-top: 0.0625rem solid #747878;
  border-bottom: 0.0625rem solid #FFF;
  margin: 0.25rem 0;
}

.output {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

textarea {
  background: #FFF;
  font-family: 'Courier Prime', monospace;
  font-size: 0.75rem;
  line-height: 1rem;
  padding: 0.5rem;
  resize: none;
  border-top: 0.125rem solid #808080;
  border-left: 0.125rem solid #808080;
  border-right: 0.125rem solid #FFF;
  border-bottom: 0.125rem solid #FFF;
  box-shadow: inset 0.0625rem 0.0625rem 0 0 #000, -0.0625rem -0.0625rem 0 0 #000;
}

textarea:focus {
  outline: none;
}

textarea::selection {
  background: #000080;
  color: #FFF;
}

.copy-btn {
  background: #c0c0c0;
  color: #000;
  cursor: pointer;
  font-family: 'Arimo', sans-serif;
  font-size: 0.75rem;
  line-height: 0.875rem;
  font-weight: 400;
  padding: 0.25rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  border-top: 0.125rem solid #FFF;
  border-left: 0.125rem solid #FFF;
  border-right: 0.125rem solid #808080;
  border-bottom: 0.125rem solid #808080;
  box-shadow: inset -0.0625rem -0.0625rem 0 0 #000, 0.0625rem 0.0625rem 0 0 #000;
  align-self: flex-end;
}

.copy-btn:focus {
  outline: none;
}

.copy-btn:active {
  border-top: 0.125rem solid #808080;
  border-left: 0.125rem solid #808080;
  border-right: 0.125rem solid #FFF;
  border-bottom: 0.125rem solid #FFF;
  box-shadow: inset 0.0625rem 0.0625rem 0 0 #000, -0.0625rem -0.0625rem 0 0 #000;
  padding: 0.25rem 0.75rem;
}