* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}
.app { max-width: 760px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
header h1 { color: #93c5fd; margin-bottom: 0.2rem; }
header .sub { color: #94a3b8; font-size: 0.85rem; margin-top: 0; }
header .sub code { background: #1e293b; padding: 0.1rem 0.4rem; border-radius: 4px; }

.tabs { display: flex; gap: 0.4rem; margin: 1.5rem 0 1rem; flex-wrap: wrap; }
.tab-btn {
  background: #1e293b; color: #cbd5e1; border: 1px solid #334155;
  padding: 0.5rem 0.9rem; border-radius: 8px; cursor: pointer; font-size: 0.85rem;
}
.tab-btn.active { background: #2563eb; color: #fff; border-color: #2563eb; }

.tab-panel { display: none; background: #1e293b; border: 1px solid #334155; border-radius: 10px; padding: 1.25rem; }
.tab-panel.active { display: block; }
.tab-panel h2 { margin-top: 0; color: #e2e8f0; font-size: 1.1rem; }
.hint { color: #94a3b8; font-size: 0.82rem; margin-top: -0.3rem; }

label { display: block; margin: 0.9rem 0 0.3rem; font-size: 0.85rem; color: #cbd5e1; }
input[type="text"], input[type="number"], textarea {
  width: 100%; padding: 0.5rem 0.6rem; border-radius: 6px; border: 1px solid #334155;
  background: #0f172a; color: #e2e8f0; font-size: 0.9rem; font-family: inherit;
}
textarea { resize: vertical; }

.run-btn {
  margin-top: 1.2rem; background: #16a34a; color: #fff; border: none;
  padding: 0.6rem 1.2rem; border-radius: 8px; font-size: 0.9rem; cursor: pointer;
}
.run-btn:hover { background: #15803d; }
.run-btn:disabled { background: #475569; cursor: not-allowed; }

.secondary-btn {
  margin-top: 0.6rem; background: transparent; color: #93c5fd; border: 1px dashed #334155;
  padding: 0.4rem 0.8rem; border-radius: 6px; font-size: 0.82rem; cursor: pointer;
}

.field-row { display: flex; gap: 0.5rem; margin-top: 0.5rem; align-items: flex-start; }
.field-row input.search { flex: 0 0 40%; }
.field-row textarea.values { flex: 1; }
.field-row button.remove { background: #7f1d1d; color: #fecaca; border: none; border-radius: 6px; padding: 0.4rem 0.6rem; cursor: pointer; }

.log-panel { margin-top: 1.5rem; }
.log-panel h3 { color: #94a3b8; font-size: 0.85rem; margin-bottom: 0.4rem; }
.log {
  background: #020617; border: 1px solid #334155; border-radius: 8px;
  padding: 0.8rem; height: 260px; overflow-y: auto; font-family: Consolas, monospace;
  font-size: 0.78rem; line-height: 1.5;
}
.log .line { white-space: pre-wrap; word-break: break-word; }
.log .info { color: #94a3b8; }
.log .error { color: #f87171; }
.log .status { color: #7dd3fc; }
.log .summary { color: #4ade80; font-weight: bold; }