:root{
  --bg: #0b0d12;
  --card: #111520;
  --muted: #8892a6;
  --text: #e9eefc;
  --accent: #6aa6ff;
  --accent2: #7ef0d6;
  --border: #1d2433;
  --danger: #ff6b6b;
}
.ttb-bf-container{color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;display:grid;gap:16px}
.ttb-bf-title{margin:0;font-size:1.75rem;color: #000000;}
.ttb-bf-subtitle{margin:0;color:var(--muted)}
.ttb-bf-card{background:linear-gradient(180deg,#0f1320,#0c101a);border:1px solid var(--border);border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.35);padding:20px}
.ttb-bf-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ttb-bf-span-2{grid-column:1/-1}
.ttb-bf-field{display:flex;flex-direction:column;gap:8px}
.ttb-bf-label{font-weight:600;color:#c7d2ee}
.ttb-bf-input{background:#0b1020;border:1px solid var(--border);border-radius:12px;padding:10px 12px;color:var(--text);outline:none;transition:border .15s ease, box-shadow .15s ease; width: 100%;}
.ttb-bf-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(106,166,255,.15)}
.ttb-bf-segment{display:inline-grid;grid-template-columns:auto auto;gap:8px;background:#0b1020;border:1px solid var(--border);border-radius:999px;padding:6px}
.ttb-bf-segment input{display:none}
.ttb-bf-segment label{padding:6px 12px;border-radius:999px;color:var(--muted);cursor:pointer}
.ttb-bf-segment input:checked + label{background:linear-gradient(90deg,var(--accent),var(--accent2));color:#0b0d12;font-weight:600}
.ttb-bf-flex{display:flex;gap:8px;align-items:center}
.ttb-bf-actions{display:flex;gap:10px;flex-wrap:wrap}
.ttb-bf-btn{background:#121a2b;border:1px solid var(--border);color:var(--text);padding:10px 14px;border-radius:12px;cursor:pointer;transition:transform .05s ease, background .2s ease}
.ttb-bf-btn:hover{background:#172036}
.ttb-bf-btn:active{transform:translateY(1px)}
.ttb-bf-btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent2));color:#04101a;border:none}
.ttb-bf-error{color:var(--danger);font-weight:600}
.ttb-bf-unit{color:var(--muted);font-size:12px}
.ttb-bf-table-wrap{overflow:auto;border:1px solid var(--border);border-radius:12px;margin-top:8px}
.ttb-bf-table{width:100%;border-collapse:separate;border-spacing:0;background:#0b1020}
.ttb-bf-table th,.ttb-bf-table td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left}
.ttb-bf-table thead th{position:sticky;top:0;background:#0d1426;z-index:1;color:#cfe0ff}
.ttb-bf-table tbody tr:hover{background:#0e1630}
.ttb-bf-note{color:var(--muted);margin-top:10px;font-size:.9rem}
.ttb-bf-group{border:1px dashed var(--border);border-radius:12px;padding:12px}
@media (max-width: 720px){
  .ttb-bf-grid{grid-template-columns:1fr}
  .ttb-bf-span-2{grid-column:auto}
}

.ttb-bf-flex input { margin: 5px 0; }