* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: #0a0a0a;
  color: #e5e5e5;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}
header {
  padding: 32px 32px 18px;
  border-bottom: 1px solid #1a1a1a;
}
header h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
header h1 .accent { color: #f4b942; }
header .tagline {
  margin: 4px 0 0;
  color: #6b7280;
  font-size: 13px;
}
main {
  max-width: 560px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}
.step {
  background: #111;
  border: 1px solid #1f1f1f;
  border-radius: 8px;
  padding: 20px 22px;
}
.step.hidden { display: none; }
h2 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
}
p { color: #9ca3af; margin: 0 0 14px; }
code {
  background: #1a1a1a;
  padding: 2px 5px;
  border-radius: 3px;
  font-family: ui-monospace, monospace;
  color: #e5e7eb;
  font-size: 12px;
}
input, textarea {
  width: 100%;
  background: #0a0a0a;
  border: 1px solid #2a2a2a;
  border-radius: 4px;
  color: #e5e7eb;
  padding: 8px 10px;
  font-family: ui-monospace, monospace;
  font-size: 13px;
  margin-bottom: 12px;
}
input:focus, textarea:focus { outline: none; border-color: #f4b942; }
textarea { resize: vertical; min-height: 70px; word-break: break-all; }
.actions {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.actions.stacked { flex-direction: column; }
button {
  flex: 1;
  padding: 9px 14px;
  border: 1px solid #2d2d2d;
  background: transparent;
  color: #e5e7eb;
  font-family: inherit;
  font-size: 14px;
  border-radius: 4px;
  cursor: pointer;
}
button:hover:not(:disabled) { background: #1a1a1a; }
button.primary {
  border-color: #f4b942;
  color: #f4b942;
}
button.primary:hover:not(:disabled) { background: #f4b94215; }
button:disabled { opacity: 0.4; cursor: not-allowed; }
button.back {
  flex: none;
  margin-top: 4px;
  padding: 4px 0;
  border: none;
  background: none;
  color: #6b7280;
  font-size: 12px;
  text-align: left;
}
button.back:hover:not(:disabled) {
  background: none;
  color: #e5e7eb;
}
p.hint {
  font-size: 12px;
  color: #f87171;
  margin: 4px 0 0;
}
.field.hidden { display: none; }
.status {
  font-size: 12px;
  padding: 6px 0;
  min-height: 18px;
}
.status.pass { color: #22c55e; }
.status.fail { color: #f87171; }
.link-card {
  background: #0a0a0a;
  border: 1px solid #2a2a2a;
  border-radius: 4px;
  padding: 10px;
  margin-bottom: 14px;
  word-break: break-all;
}
.link-card a {
  font-family: ui-monospace, monospace;
  font-size: 12px;
  color: #f4b942;
  text-decoration: none;
}
.link-card a:hover { text-decoration: underline; }
.reveal {
  background: #0a0a0a;
  border: 1px solid #2a2a2a;
  border-radius: 4px;
  padding: 12px;
  margin-bottom: 14px;
}
.field { margin-bottom: 12px; }
.field:last-child { margin-bottom: 0; }
.field .label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #6b7280;
  margin-bottom: 4px;
}
.field pre {
  margin: 0;
  font-family: ui-monospace, monospace;
  font-size: 12px;
  color: #fef3c7;
  white-space: pre-wrap;
  word-break: break-all;
}