:root {
    --bg: #0f1115;
    --panel: #151821;
    --panel-2: #1b1f2a;
    --text: #e6e6e6;
    --muted: #a7b1c2;
    --accent: #4db2ff;
    --accent-2: #7bd7ff;
    --error: #ff6b6b;
    --ok: #79d98a;
    --warn: #ffd166;
    --border: #2a2f3a;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  }
  * { box-sizing: border-box; }
  html, body { height: 100%; background: var(--bg); color: var(--text); margin: 0; }
  h1 { font-size: 18px; margin: 0 0 12px; color: var(--accent); }
  .container { padding: 16px; max-width: 1300px; margin: 0 auto; }
  .grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .block {
    background: linear-gradient(180deg, var(--panel), var(--panel-2));
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
  }
  label { color: var(--muted); font-size: 12px; }
  textarea, pre, input[type="text"] {
    width: 100%; min-height: 340px; resize: vertical;
    background: #0d0f14; color: var(--text);
    border: 1px solid var(--border); border-radius: 8px;
    padding: 10px; font-family: var(--mono); font-size: 13px; line-height: 1.5;
  }
  pre { min-height: 160px; white-space: pre-wrap; word-break: break-word; }
  .controls {
    display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0;
  }
  .btn {
    background: #1e2430; color: var(--text);
    border: 1px solid var(--border); border-radius: 8px;
    padding: 8px 12px; cursor: pointer; font-weight: 600;
  }
  .btn:hover { border-color: var(--accent); color: var(--accent-2); }
  .btn.primary { background: #1a2a3a; border-color: #254b7a; color: #bfe5ff; }
  .btn.danger { background: #2a1a1a; border-color: #5a2a2a; color: #ffb3b3; }
  .opts { display: flex; flex-wrap: wrap; gap: 16px; margin: 6px 0 10px; }
  .opts .opt { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
  .stat { padding: 6px 10px; border-radius: 6px; display: inline-block; font-size: 12px; }
  .stat.ok { background: rgba(121,217,138,0.12); color: var(--ok); border: 1px solid rgba(121,217,138,0.25); }
  .stat.err { background: rgba(255,107,107,0.12); color: var(--error); border: 1px solid rgba(255,107,107,0.25); }
  .stat.warn { background: rgba(255,209,102,0.12); color: var(--warn); border: 1px solid rgba(255,209,102,0.25); }
  .small { font-size: 12px; color: var(--muted); }
  .row { display: flex; gap: 14px; }
  .row > * { flex: 1; }
  .log { min-height: 120px; }
  .titlebar { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
  code.inline { background: #0c1016; padding: 2px 6px; border: 1px solid var(--border); border-radius: 6px; }
  .footer { margin-top: 10px; font-size: 12px; color: var(--muted); }