:root {
  --bg: #0b0f17;
  --panel: #141a24;
  --panel-2: #1a2130;
  --text: #e6ebf2;
  --muted: #8a94a6;
  --accent: #2bb673;
  --accent-hi: #34d18a;
  --error: #e5484d;
  --radius: 10px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.5; -webkit-font-smoothing: antialiased; }
.app-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; border-bottom: 1px solid #1e2634; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(43, 182, 115, 0.15); }
.app-nav { display: flex; gap: 16px; }
.app-nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.app-nav a:hover { color: var(--text); }
.container { max-width: 780px; margin: 32px auto; padding: 0 24px; display: grid; gap: 20px; }
.card { background: var(--panel); border: 1px solid #1e2634; border-radius: var(--radius); padding: 20px 24px; }
.card h2 { margin: 0 0 12px; font-size: 16px; font-weight: 600; }
.muted { color: var(--muted); }
.status-grid { display: grid; grid-template-columns: 180px 1fr; gap: 8px 16px; margin: 0; }
.status-grid dt { color: var(--muted); font-size: 14px; }
.status-grid dd { margin: 0; font-size: 14px; }
.mono { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.btn-secondary { padding: 8px 14px; border: 1px solid #2a3344; background: var(--panel-2); color: var(--text); border-radius: 8px; font-weight: 500; cursor: pointer; font-family: inherit; }
.btn-secondary:hover { border-color: var(--accent); }
.tool-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.tool-list li { background: var(--panel-2); border: 1px solid #2a3344; border-radius: 8px; padding: 12px 14px; display: grid; gap: 8px; }
.tool-name { font-weight: 600; font-family: var(--mono); font-size: 14px; color: var(--accent-hi); }
.tool-desc { font-size: 13px; color: var(--muted); }
.tool-actions { display: flex; gap: 8px; align-items: center; }
.tool-actions button { padding: 6px 12px; border: 0; background: var(--accent); color: white; border-radius: 6px; font-weight: 600; cursor: pointer; font-size: 13px; }
.tool-actions button:hover { background: var(--accent-hi); }
.tool-actions button:disabled { opacity: 0.6; cursor: progress; }
.result { padding: 14px 16px; border-radius: 8px; font-family: var(--mono); font-size: 13px; white-space: pre-wrap; word-break: break-word; }
.result.ok { background: rgba(43, 182, 115, 0.1); color: #9fe5c3; border: 1px solid rgba(43, 182, 115, 0.3); }
.result.err { background: rgba(229, 72, 77, 0.1); color: #f0a4a7; border: 1px solid rgba(229, 72, 77, 0.3); }
.app-footer { text-align: center; padding: 24px 16px; color: var(--muted); font-size: 12px; }
.app-footer a { color: var(--muted); }