.builder-shell{display:grid;gap:16px}.builder-topbar{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:0 10px 28px rgba(15,23,42,.06)}.builder-topbar h1{margin:0;font-size:28px;letter-spacing:-.045em}.segmented{display:flex;gap:4px;padding:4px;background:#eef3f8;border-radius:14px}.segmented button{border:0;border-radius:11px;padding:9px 12px;background:transparent;font-weight:900;color:var(--muted);cursor:pointer}.segmented button.active{background:#fff;color:var(--brand);box-shadow:0 4px 12px rgba(15,23,42,.08)}.top-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.builder-grid{display:grid;grid-template-columns:minmax(420px,.92fr) minmax(520px,1.08fr);gap:16px;align-items:start}.pane{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.pane-toolbar{position:sticky;top:var(--header-h);z-index:10;display:flex;align-items:center;justify-content:space-between;gap:10px;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:12px 14px}.pane-toolbar button{border:1px solid var(--line);background:#fff;border-radius:12px;padding:8px 10px;font-weight:800}.proposal-form{padding:14px;display:grid;gap:12px;max-height:calc(100vh - 160px);overflow:auto}.form-section{border:1px solid var(--line);border-radius:16px;background:#fbfdff;overflow:hidden}.form-section summary{cursor:pointer;padding:14px 16px;font-weight:950;color:#0f172a;background:linear-gradient(180deg,#fff,#f8fafc);border-bottom:1px solid var(--line)}.field-grid{display:grid;gap:12px;padding:14px}.field-grid.one{grid-template-columns:1fr}.field-grid.two{grid-template-columns:repeat(2,1fr)}.field-grid.three{grid-template-columns:repeat(3,1fr)}.field-grid.four{grid-template-columns:repeat(4,1fr)}.field-grid label{display:grid;gap:6px;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#475569;font-weight:950}.field-grid .wide{grid-column:1/-1}.field-grid input,.field-grid textarea,.field-grid select{width:100%;border:1px solid var(--line);border-radius:12px;padding:10px;background:#fff;color:#0f172a;text-transform:none;letter-spacing:0;font-weight:650}.line-items{display:grid;gap:10px;padding:14px}.line-card{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.line-card-head{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;padding:10px 12px;background:#f8fafc;border-bottom:1px solid var(--line)}.line-card-head strong{font-size:14px}.line-card-head small{display:block;color:var(--muted);font-weight:700}.line-card-body{display:grid;grid-template-columns:1.5fr .7fr .7fr .7fr .8fr;gap:10px;padding:12px}.line-card label{display:grid;gap:5px;font-size:11px;color:var(--muted);font-weight:900;text-transform:uppercase}.line-card input,.line-card select{border:1px solid var(--line);border-radius:10px;padding:9px}.line-total{font-weight:950;color:var(--brand);font-size:18px;align-self:end;text-align:right}.remove-line{border:0;background:#fee2e2;color:#b91c1c;border-radius:10px;padding:7px 9px;font-weight:950}.proposal-document{margin:0 auto;background:#fff;min-height:900px;padding:38px;max-width:940px;color:#111827}.doc-header{display:grid;grid-template-columns:1fr auto;gap:24px;border-bottom:4px solid var(--doc-brand,var(--brand));padding-bottom:22px;margin-bottom:24px}.doc-company{display:flex;gap:14px;align-items:center}.doc-logo{width:76px;height:76px;border-radius:18px;background:linear-gradient(135deg,var(--doc-brand,var(--brand)),var(--doc-accent,var(--accent)));display:grid;place-items:center;color:#fff;font-size:30px;font-weight:950;overflow:hidden}.doc-logo img{width:100%;height:100%;object-fit:cover}.doc-company h2{margin:0;font-size:28px;letter-spacing:-.045em}.doc-company p,.doc-meta p{margin:4px 0;color:#475569}.doc-meta{text-align:right}.doc-title{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:22px}.doc-title h1{font-size:38px;letter-spacing:-.06em;line-height:.95;margin:0}.doc-badge{background:color-mix(in srgb,var(--doc-brand,var(--brand)) 12%,white);color:var(--doc-brand,var(--brand));padding:8px 12px;border-radius:999px;font-weight:950;white-space:nowrap}.doc-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:20px}.doc-box{border:1px solid #e5edf5;border-radius:16px;padding:16px;background:#fbfdff}.doc-box h3,.doc-section h3{margin:0 0 10px;font-size:15px;text-transform:uppercase;letter-spacing:.1em;color:var(--doc-brand,var(--brand))}.doc-box p,.doc-section p{line-height:1.55;color:#334155}.doc-section{margin:20px 0}.floorplan-box{min-height:190px;border:2px dashed #cbd5e1;border-radius:18px;background:#f8fafc;display:grid;place-items:center;text-align:center;color:#64748b;overflow:hidden}.floorplan-box img{width:100%;height:auto;display:block}.pricing-table{width:100%;border-collapse:collapse;margin-top:10px}.pricing-table th{background:#f1f5f9;text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#475569}.pricing-table th,.pricing-table td{padding:10px;border-bottom:1px solid #e5edf5;vertical-align:top}.pricing-table td:nth-child(n+3),.pricing-table th:nth-child(n+3){text-align:right}.totals{margin-left:auto;max-width:360px;display:grid;gap:6px}.totals div{display:flex;justify-content:space-between;border-bottom:1px solid #e5edf5;padding:7px 0}.totals .grand{font-size:22px;font-weight:950;color:var(--doc-brand,var(--brand));border-bottom:0}.signature-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:34px}.sig-line{border-top:1px solid #111827;padding-top:8px;color:#475569}.focus-mode .builder-grid{grid-template-columns:1fr}.focus-mode [data-pane]{display:none}.focus-mode[data-focus-pane="form"] [data-pane="form"],.focus-mode[data-focus-pane="preview"] [data-pane="preview"]{display:block}.builder-grid[data-layout="form"]{grid-template-columns:1fr}.builder-grid[data-layout="form"] [data-pane="preview"]{display:none}.builder-grid[data-layout="preview"]{grid-template-columns:1fr}.builder-grid[data-layout="preview"] [data-pane="form"]{display:none}.builder-grid[data-layout="preview"] .proposal-document{max-width:980px}.financial-grid{border-top:1px solid var(--line);background:#f8fafc}
@media(max-width:1100px){.builder-topbar{grid-template-columns:1fr}.builder-grid{grid-template-columns:1fr}.proposal-form{max-height:none}.field-grid.two,.field-grid.three,.field-grid.four,.line-card-body{grid-template-columns:1fr}.doc-grid,.doc-header,.doc-title,.signature-grid{grid-template-columns:1fr}.doc-meta{text-align:left}.proposal-document{padding:22px}.doc-title h1{font-size:30px}}

/* Step 3: nested custom line items inside each pricing card */
.sub-lines{
  margin: 12px 14px 14px;
  padding: 12px;
  border: 1px dashed rgba(37,99,235,.35);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(37,99,235,.045), rgba(14,165,233,.025));
}
.sub-lines-title{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
  font-size:.86rem;
}
.btn.tiny{
  padding:6px 10px;
  min-height:auto;
  font-size:.78rem;
  border-radius:999px;
}
.empty-subline{
  margin:0;
  color:#64748b;
  font-size:.82rem;
}
.sub-line-card{
  border:1px solid rgba(148,163,184,.35);
  background:#fff;
  border-radius:12px;
  padding:10px;
  margin-top:8px;
}
.sub-line-head{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
}
.sub-line-head strong{
  font-size:.82rem;
  color:#334155;
}
.mini-check{
  display:flex;
  align-items:center;
  gap:6px;
  font-size:.78rem;
  color:#475569;
  margin:0;
}
.sub-remove{
  margin-left:auto;
}
.sub-line-grid{
  display:grid;
  grid-template-columns: 1.2fr .65fr .75fr .75fr .95fr .75fr 1.4fr auto;
  gap:8px;
  align-items:end;
}
.sub-line-grid label{
  margin:0;
  font-size:.74rem;
}
.sub-line-total{
  min-width:94px;
  padding:9px 10px;
  border-radius:10px;
  background:#eff6ff;
  color:#1d4ed8;
  font-weight:800;
  text-align:right;
  border:1px solid #bfdbfe;
}
@media (max-width: 900px){
  .sub-line-grid{ grid-template-columns: 1fr 1fr; }
  .sub-line-total{ text-align:left; }
}