:root {
  --bg: #0b0b0f;
  --panel: #151521;
  --text: #e9ecf1;
  --muted: #aab3c2;
  --accent: #98e0ff;
  --line: #26263a;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, #142035 0%, #0b0b0f 60%);
  color: var(--text);
}
header, footer { text-align: center; padding: 16px; }
header h1 { margin: 0 0 6px; }
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 16px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.panel.results {
  display: grid;
  gap: 12px;
}
.panel.results > div {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
label { display: block; font-weight: 600; margin-bottom: 8px; }
textarea {
  width: 100%;
  min-height: 140px;
  padding: 12px;
  background: #0f1020;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  resize: vertical;
}
.row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  align-items: center;
  margin-top: 12px;
}
select, button {
  background: #0f1020;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
}
button { cursor: pointer; }
button:hover { border-color: var(--accent); }
button.secondary { opacity: 0.8; }
.actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}
h2 { font-size: 1.05rem; margin: 10px 0; color: var(--accent); }
pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #0c0d18;
  color: var(--text);
}
#status { color: var(--muted); min-height: 1.2em; }