:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  min-height: 100vh;
  background: radial-gradient(circle at top, #0b1227 0%, #0f172a 70%);
  color: #e5e7eb;
}
.app { max-width: 1200px; margin: 0 auto; padding: 24px 16px 30px; }
h1 { margin: 0; font-size: 1.7rem; }
p { margin-top: 8px; color: #9ca3af; }
.controls { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.field label { display: block; color: #9ca3af; margin-bottom: 6px; }
.field input, .field select {
  width: 100%; border: 1px solid #334155; border-radius: 8px;
  background: #0b1220; color: #e5e7eb; padding: 9px 10px; font-size: 0.95rem;
}
.toolbar { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 10px; }
button {
  border: 1px solid #334155; background: #1f2937; color: #e5e7eb;
  padding: 9px 12px; border-radius: 8px; cursor: pointer; font-size: 0.95rem;
}
button:hover { border-color: #38bdf8; }
.grid { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-1 { margin-top: 14px; display: grid; grid-template-columns: 1fr; gap: 12px; }
.panel { border: 1px solid #334155; border-radius: 10px; background: #111827; padding: 12px; }
label { display: block; color: #9ca3af; margin-bottom: 8px; }
textarea {
  width: 100%; min-height: 300px; border-radius: 8px; border: 1px solid #334155;
  background: #0b1220; color: #e5e7eb; padding: 10px; resize: vertical;
  font-size: 0.94rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}
textarea.short { min-height: 160px; }
.status-wrap { margin-top: 12px; border: 1px solid #334155; border-radius: 10px; padding: 10px 12px; background: #0b1220; }
.status { margin: 0; font-weight: 600; }
.status.ok { color: #34d399; }
.status.error { color: #f87171; }
.back-link { margin-top: 12px; }
.back-link a { color: #93c5fd; text-decoration: none; }
.back-link a:hover { text-decoration: underline; }
.seo-content { margin-top: 14px; padding: 16px; border: 1px solid #334155; border-radius: 10px; background: #0b1220; }
.seo-content h2 { margin: 0 0 10px; font-size: 1.1rem; color: #cbd5e1; }
.seo-content h3 { margin: 14px 0 6px; font-size: 0.98rem; color: #94a3b8; }
.seo-content p { margin: 6px 0; color: #9ca3af; line-height: 1.6; }
.seo-content code { background: #1e293b; padding: 1px 5px; border-radius: 4px; font-size: 0.88rem; color: #7dd3fc; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } textarea { min-height: 200px; } }