:root {
  color-scheme: dark;
  font-family: system-ui, -apple-system, sans-serif;
  background: #0b1020;
  color: #f4f7ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 24px 14px;
}

main {
  max-width: 760px;
  margin: auto;
}

header {
  margin-bottom: 24px;
}

h1 {
  margin-bottom: 4px;
}

h2 {
  margin-top: 0;
}

p {
  color: #b8c6e1;
  line-height: 1.5;
}

.warning {
  border: 1px solid #c99b45;
  background: #342919;
  padding: 16px;
  border-radius: 12px;
}

.panel {
  background: #161e32;
  border: 1px solid #34415c;
  border-radius: 16px;
  padding: 22px;
  margin-top: 18px;
}

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

label {
  display: block;
  margin-top: 16px;
  margin-bottom: 6px;
}

input, textarea, button {
  font: inherit;
  width: 100%;
  padding: 12px;
  border-radius: 9px;
}

input, textarea {
  background: #0d1527;
  color: white;
  border: 1px solid #53617d;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

button {
  cursor: pointer;
  margin-top: 16px;
  background: #a9c7ff;
  color: #0b1020;
  border: 0;
  font-weight: 700;
}

button:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.secondary {
  background: #d5dcec;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

#status {
  min-height: 26px;
}

footer {
  padding: 28px 0;
  color: #8f9db9;
  text-align: center;
  font-size: 12px;
}

@media (max-width: 480px) {
  .actions {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 16px;
  }
}