:root {
  --bg: #0b0d12;
  --panel: #141821;
  --ink: #e6e9ef;
  --muted: #8b93a5;
  --accent: #7aa2ff;
  --line: #232838;
  --ok: #58d68d;
  --err: #ff6b6b;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; letter-spacing: 2px; font-size: 20px; }
.status { font-size: 12px; color: var(--muted); }
.status.ok { color: var(--ok); }
.status.err { color: var(--err); }
main { max-width: 880px; margin: 24px auto; padding: 0 24px; display: grid; gap: 20px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 20px; }
.panel h1 { margin: 0 0 8px; font-size: 24px; }
.panel h2 { margin: 0 0 12px; font-size: 18px; }
.muted { color: var(--muted); margin: 0 0 14px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
button, input { font: inherit; color: var(--ink); }
button { background: var(--accent); color: #0b0d12; border: 0; padding: 8px 14px; border-radius: 8px; cursor: pointer; font-weight: 600; }
button:hover { filter: brightness(1.08); }
input { background: #0b0d12; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; min-width: 220px; }
pre { background: #0b0d12; border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow: auto; white-space: pre-wrap; word-break: break-word; }
ul { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 6px; }
li { background: #0b0d12; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; display: flex; justify-content: space-between; }
li .id { color: var(--muted); font-size: 12px; }
footer { text-align: center; color: var(--muted); padding: 18px; border-top: 1px solid var(--line); margin-top: 24px; }