/* Wrapper & Typography */
.ttb-vhl-wrap { max-width: 980px; margin: 0 auto; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; color:#111827; }
.ttb-card { background:#fff; border:1px solid #e5e7eb; border-radius:12px; padding:16px; margin:14px 0; box-shadow: 0 1px 3px rgba(0,0,0,.04); }
.ttb-grid-2 { display:grid; grid-template-columns: 1fr; gap:12px; }
.ttb-grid-3 { display:grid; grid-template-columns: 1fr; gap:12px; }
@media (min-width: 900px){
  .ttb-grid-2 { grid-template-columns: 1fr 1fr; }
  .ttb-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
}
.ttb-field label { display:block; font-weight:600; margin-bottom:6px; }
.ttb-field input[type="text"], .ttb-field input[type="number"] { width:100%; padding:10px 12px; border:1px solid #d1d5db; border-radius:10px; }

/* Rows */
.ttb-rows-head { padding:8px 10px; background:#f8fafc; border:1px solid #e5e7eb; border-radius:10px; }
#ttb-vhl-rows { display:grid; gap:10px; margin-top:10px; }
.ttb-row { display:grid; grid-template-columns: 1fr; gap:10px; }
@media (min-width: 900px){
  .ttb-row, .ttb-rows-head { display:grid; grid-template-columns: 180px 1fr 130px; gap:10px; align-items: start; }
}
.ttb-row input[type="text"], .ttb-row input[type="number"] { width:100%; }
.ttb-row .ttb-date { }

/* Buttons */
.ttb-btn { display:inline-block; padding:10px 14px; border-radius:10px; border:1px solid #d1d5db; background:#fff; cursor:pointer; color:#0068ff; }
.ttb-btn:hover { background:#f3f4f6; color:#0068ff; }
.ttb-btn-primary { background:#111827; border-color:#111827; color:#fff; }
.ttb-btn-primary:hover { background:#0b1220; color:#fff; }

#ttb-vhl-print, #ttb-vhl-pdf { width: 100%; }

/* Totals */
.ttb-total { display:flex; justify-content:flex-end; align-items:center; gap:10px; margin-top:12px; font-size:16px; }
.ttb-total strong { font-size:18px; }

/* Preview output */
#ttb-vhl-preview { border:1px solid #e5e7eb; border-radius:10px; padding:14px; overflow:auto; }
.ttb-preview-title { font-size:20px; font-weight:700; text-align:center; margin-bottom:10px; }
.ttb-preview-meta { display:grid; grid-template-columns: 1fr; gap:8px; margin-bottom:10px; }
@media (min-width: 700px){
  .ttb-preview-meta { grid-template-columns: 1fr 1fr; }
}
.ttb-table { width:100%; border-collapse:collapse; }
.ttb-table th, .ttb-table td { border:1px solid #e5e7eb; padding:8px; font-size:14px; vertical-align: top; }
.ttb-table th { background:#f8fafc; text-align:left; }
.ttb-signature { margin-top:14px; display:flex; gap:20px; align-items:flex-end; }
.ttb-line { border-bottom:1px solid #111827; min-width:220px; height:24px; }

/* Print styles */
@media print {
  #wpadminbar, .site-header, .site-footer, .ttb-card:nth-of-type(1), .ttb-card:nth-of-type(2) > #ttb-vhl-add { display:none !important; }
  .ttb-vhl-wrap, .ttb-card { border:none; box-shadow:none; }
  .ttb-vhl-wrap { max-width:100%; }
  .ttb-table { border-collapse: collapse; }
  .ttb-table th, .ttb-table td {
    border-style: solid;
    border-color: #000;
    /* Fallback hairline technique */
    box-shadow: inset 0 0 0 0.75pt #000; /* draws even if border thins */
  }
}

#ttb-vhl-add { margin-top: 10px; }