:root {
  --bg: #0a0f1a;
  --card: #141c2b;
  --text: #f4f6ff;
  --muted: #9aa7c2;
  --accent: #21c3a5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at top, #16233f, var(--bg));
  color: var(--text);
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  margin: 0;
}

.muted {
  color: var(--muted);
}

.card {
  background: color-mix(in srgb, var(--card) 92%, #000 8%);
  border: 1px solid #26324b;
  border-radius: 12px;
  padding: 12px;
  margin-top: 12px;
}

label {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
}

input,
textarea,
button {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #2d3a57;
  background: #0e1523;
  color: var(--text);
  padding: 10px;
  margin-bottom: 10px;
}

button {
  cursor: pointer;
  background: linear-gradient(90deg, #1ba9ff, var(--accent));
  color: #001110;
  border: none;
  font-weight: 700;
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 120px;
}