body {
  margin: 0;
  min-height: 100vh;
  background: #17191d;
  color: #f5f7fb;
  font-family: Arial, Helvetica, sans-serif;
}

main {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

section {
  width: min(820px, 100%);
  background: #23262d;
  border: 1px solid #3b414b;
  border-radius: 8px;
  padding: 24px;
}

.small {
  width: min(420px, 100%);
}

.head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: start;
}

h1 {
  margin: 0 0 8px;
  font-size: 32px;
}

p {
  margin: 0 0 18px;
  color: #b8c0cc;
}

form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  margin-top: 18px;
}

label {
  grid-column: 1 / -1;
  color: #c9d1dc;
}

input {
  min-height: 58px;
  border: 1px solid #4e5663;
  border-radius: 6px;
  background: #111318;
  color: #fff;
  font-size: 26px;
  padding: 10px 14px;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  padding: 0 18px;
  background: #4aa36f;
  color: #07110b;
  font-weight: 700;
}

.link-button {
  min-height: 44px;
  display: inline-grid;
  place-items: center;
  border-radius: 6px;
  padding: 0 18px;
  background: #5e7fb8;
  color: #f7fbff;
  font-weight: 700;
  text-decoration: none;
}

#undo {
  background: #d7b65d;
}

.status {
  margin-top: 20px;
  min-height: 72px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 16px;
  font-size: 24px;
  font-weight: 700;
}

.idle {
  background: #313741;
}

.ok {
  background: #17472d;
  color: #aef2c8;
}

.err {
  background: #571f25;
  color: #ffd1d6;
}

ol {
  color: #d7dde7;
}

@media (max-width: 640px) {
  form {
    grid-template-columns: 1fr;
  }
}