:root {
  --bg: #0b1120;
  --card: #1e293b;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #0ea5e9;
  --green: #10b981;
  --amber: #f59e0b;
  --border: #334155;
}
* { box-sizing: border-box; font-family: system-ui, -apple-system, sans-serif; }
body { background: var(--bg); color: var(--text); margin: 0; padding: 18px; max-width: 1180px; margin-inline: auto; }
.top-bar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; border-bottom: 1px solid var(--border); padding-bottom: 12px; }
h1 { margin: 0; font-size: 1.35rem; display: flex; align-items: center; gap: 10px; }
.subtitle { margin: 4px 0 0; font-size: 0.82rem; color: var(--muted); }
.badge { background: rgba(14,165,233,0.2); color: #38bdf8; font-size: 0.75rem; padding: 3px 8px; border-radius: 5px; }
.auth-bar, .row, .oracle-bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 8px 0; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 12px; margin-bottom: 14px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(420px,1fr)); gap: 12px; margin-bottom: 14px; }
.stat-card, .card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 14px; margin-bottom: 14px; }
.card-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
.label { font-size: 0.76rem; color: var(--muted); text-transform: uppercase; font-weight: 700; }
.big-val { font-size: 1.65rem; font-weight: 800; font-family: monospace; color: var(--accent); margin: 6px 0; }
.big-val.green { color: var(--green); }
.big-val.amber { color: var(--amber); }
.sub { font-size: 0.78rem; color: var(--muted); }
.sim-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 12px; margin-bottom: 12px; align-items: center; font-size: 0.84rem; }
.param-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(150px,1fr)); gap: 10px; font-size: 0.8rem; color: var(--muted); }
.sim-preview { background: #131c2e; border: 1px solid var(--accent); padding: 10px; border-radius: 8px; text-align: center; }
input, textarea { background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; font-size: 0.86rem; width: 100%; }
.auth-bar input { width: 190px; }
textarea { height: 76px; font-family: monospace; }
button { background: #26354d; color: var(--text); border: 1px solid var(--border); padding: 8px 12px; border-radius: 6px; cursor: pointer; font-weight: 600; font-size: 0.84rem; }
button:hover { border-color: var(--accent); }
.btn-primary { background: var(--green); border-color: var(--green); color: #fff; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-ble { background: #6366f1; border-color: #6366f1; color: #fff; }
table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 0.84rem; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-size: 0.74rem; text-transform: uppercase; }
#toast { display: none; position: fixed; bottom: 20px; right: 20px; background: var(--green); color: #fff; padding: 12px 18px; border-radius: 8px; font-weight: 700; z-index: 100; }