* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0b0f17;
  --card: #131a26;
  --border: #223047;
  --text: #e6ebf4;
  --muted: #8b98ad;
  --accent: #34d399;
  --red: #f87171;
  --yellow: #fbbf24;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.5;
  padding: 2rem 1rem;
}

.wrap { max-width: 720px; margin: 0 auto; }

header { margin-bottom: 1.5rem; }
h1 { font-size: 1.6rem; letter-spacing: -0.02em; }
.sub { color: var(--muted); margin-top: 0.25rem; font-size: 0.95rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

h2 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.hint { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.75rem; }
.hint.inline { margin-left: 0.5rem; }
code { background: #0e1622; padding: 0.1rem 0.35rem; border-radius: 4px; font-size: 0.85em; }

textarea, input, select {
  width: 100%;
  background: #0e1622;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.7rem 0.8rem;
  font-size: 0.95rem;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}
textarea { resize: vertical; min-height: 96px; }
input[type="number"] { max-width: 160px; }

select {
  font-family: inherit;
  cursor: pointer;
}

.row { display: flex; gap: 1rem; flex-wrap: wrap; }
.row label { flex: 1; min-width: 140px; font-size: 0.85rem; color: var(--muted); }
.row input { margin-top: 0.3rem; }

.radio { display: block; padding: 0.4rem 0; cursor: pointer; }
.radio input { margin-right: 0.5rem; width: auto; }

.status { margin-top: 0.75rem; font-size: 0.85rem; }
.status .ok { color: var(--accent); }
.status .err { color: var(--red); }
.status .warn { color: var(--yellow); }

.primary {
  width: 100%;
  background: var(--accent);
  color: #052e1b;
  border: none;
  border-radius: 10px;
  padding: 0.9rem;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  margin: 0.5rem 0 1rem;
}
.primary:disabled { opacity: 0.4; cursor: not-allowed; }
.primary.fire { background: var(--red); color: #fff; }

pre#log {
  background: #0e1622;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem;
  font-size: 0.8rem;
  max-height: 320px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
pre#log .ok { color: var(--accent); }
pre#log .err { color: var(--red); }
pre#log .warn { color: var(--yellow); }

.hidden { display: none; }

footer { color: var(--muted); font-size: 0.8rem; text-align: center; margin-top: 2rem; }