:root {
  color-scheme: dark;
  --bg: #080d19;
  --card: #121a2d;
  --card2: #1a2540;
  --text: #f4f7ff;
  --muted: #a4afc7;
  --accent: #6ee7b7;
  --accent2: #60a5fa;
  --ok: #31d28b;
  --warn: #f7c948;
  --danger: #ff647c;
  --border: rgba(255,255,255,.1);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #1f3a5f, var(--bg) 45%);
  color: var(--text);
}
.app { width: min(900px, calc(100% - 28px)); margin: 0 auto; padding: 28px 0; }
.hero { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
h1 { margin: 0; font-size: clamp(28px, 5vw, 44px); letter-spacing: -.04em; line-height: 1.08; }
h2 { margin: 0 0 10px; font-size: 21px; }
p { line-height: 1.65; }
.eyebrow { color: var(--accent); letter-spacing: .16em; font-size: 13px; margin: 0 0 8px; font-weight: 800; }
.muted, .hint { color: var(--muted); }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 16px 40px rgba(0,0,0,.25);
}
.main-card { display: grid; grid-template-columns: 1.4fr .9fr; gap: 20px; align-items: center; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.step { border: 1px solid var(--border); border-radius: 16px; padding: 14px; background: rgba(255,255,255,.04); }
.step span { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 999px; background: #293653; color: var(--text); font-weight: 900; margin-bottom: 10px; }
.step strong { display: block; margin-bottom: 4px; }
.step small { color: var(--muted); line-height: 1.4; }
.step.active { border-color: rgba(110,231,183,.45); background: rgba(110,231,183,.08); }
.step.done span { background: var(--ok); color: #062113; }
.row { display: flex; align-items: center; gap: 10px; margin: 12px 0; }
.wrap { flex-wrap: wrap; }
button, select, input {
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--card2);
  color: var(--text);
  font: inherit;
}
button { cursor: pointer; padding: 12px 16px; background: linear-gradient(135deg, var(--accent), var(--accent2)); border: none; font-weight: 800; color: #07111d; }
button.secondary { background: #273152; color: var(--text); }
button:disabled { cursor: not-allowed; opacity: .45; }
select, input { width: 100%; padding: 12px; margin: 6px 0 14px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.grid3 label { color: var(--muted); font-size: 14px; }
.status { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.06); border: 1px solid var(--border); padding: 10px 14px; border-radius: 999px; white-space: nowrap; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--danger); box-shadow: 0 0 0 5px rgba(255,100,124,.12); }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 5px rgba(49,210,139,.12); }
.meta { display: grid; grid-template-columns: 80px 1fr; gap: 8px 12px; color: var(--muted); margin: 0; }
.meta dd { margin: 0; color: var(--text); word-break: break-all; }
summary { cursor: pointer; font-weight: 800; }
.advanced { background: rgba(255,255,255,.035); }
#log { min-height: 110px; max-height: 240px; overflow: auto; margin: 12px 0 0; color: #d7def5; white-space: pre-wrap; font-size: 13px; }
@media (max-width: 760px) {
  .hero { flex-direction: column; align-items: flex-start; }
  .steps, .main-card { grid-template-columns: 1fr; }
  .row { align-items: stretch; flex-direction: column; }
  button { width: 100%; }
}