:root {
  --bg: #0f172a;
  --panel: #111827;
  --card: #1f2937;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #f97316;
  --ok: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --border: rgba(148, 163, 184, 0.25);
  --font: "Segoe UI", Tahoma, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(249, 115, 22, 0.18), transparent 35%),
    linear-gradient(160deg, #020617, #0f172a 45%, #111827);
}

.shell {
  width: min(720px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3rem;
}

.hero { margin-bottom: 1.5rem; }
.eyebrow {
  margin: 0 0 0.4rem;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}
.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}
.lead, .meta, .muted p { color: var(--muted); line-height: 1.8; }

.card {
  background: rgba(31, 41, 55, 0.92);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(8px);
}
.card h2 { margin: 0 0 1rem; font-size: 1.1rem; }
.card.muted { background: rgba(15, 23, 42, 0.7); }

.form { display: grid; gap: 0.9rem; }
label { display: grid; gap: 0.35rem; font-size: 0.92rem; color: #e2e8f0; }
input {
  width: 100%;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  font: inherit;
}
button, .button {
  appearance: none;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #111827;
  font: inherit;
  font-weight: 700;
  padding: 0.85rem 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  justify-content: center;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }

.alert {
  border-radius: 14px;
  padding: 0.9rem 1rem;
  margin-bottom: 1rem;
  line-height: 1.7;
}
.alert.ok { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.35); }
.alert.warn { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.35); }
.alert.danger { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.35); }

.facts { display: grid; gap: 0.75rem; margin: 0; }
.facts > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 0.55rem;
}
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-weight: 600; }

ol { margin: 0; padding-inline-start: 1.2rem; color: var(--muted); line-height: 1.9; }
code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
}
.debug {
  margin-top: 1rem;
  overflow: auto;
  background: #020617;
  border-radius: 12px;
  padding: 0.9rem;
  border: 1px solid var(--border);
  white-space: pre-wrap;
}
.actions { margin-top: 1.25rem; }