:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --border:#dfe3eb;
  --text:#1f2937;
  --muted:#6b7280;
  --accent:#0f766e;
  --accent-soft:#dff7f4;
  --danger:#b91c1c;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-variant-ligatures:none}
button,input,select,textarea{font:inherit}
.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.sidebar{background:#0f172a;color:#fff;padding:24px;display:flex;flex-direction:column;gap:24px}
.brand{display:flex;gap:12px;align-items:center}
.brand h1{font-size:22px;margin:0}
.brand p{margin:4px 0 0;color:#cbd5e1}
.brand-mark{font-size:28px}
.sidebar nav{display:flex;flex-direction:column;gap:10px}
.nav-btn,.primary-btn,.secondary-btn,.danger-btn{border:none;border-radius:12px;padding:12px 14px;cursor:pointer}
.nav-btn{background:#1e293b;color:#fff;text-align:left}
.nav-btn.active,.primary-btn{background:var(--accent);color:#fff}
.secondary-btn{background:#e2e8f0;color:#111827}
.danger-btn{background:#fee2e2;color:var(--danger)}
.sidebar-card{background:#111827;border:1px solid rgba(255,255,255,.08);padding:16px;border-radius:16px}
.sidebar-card h3{margin-top:0}
.content{padding:28px}
.page{display:none}
.page.active{display:block}
.page-header{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;margin-bottom:20px}
.page-header h2{margin:0 0 6px}
.page-header p{margin:0;color:var(--muted)}
.header-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.cloud-status{margin:0 0 12px;padding:10px 12px;border-radius:12px;background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8;font-size:14px}
.cloud-status.success{background:#ecfdf5;border-color:#a7f3d0;color:#047857}
.cloud-status.error{background:#fef2f2;border-color:#fecaca;color:#b91c1c}
.page-header p{margin:0;color:var(--muted)}
.google-box,.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:18px}
.card{box-shadow:0 10px 25px rgba(15,23,42,.04)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-weight:600}
.field input,.field select,.field textarea{padding:11px 12px;border-radius:12px;border:1px solid var(--border);background:#fff}
.inline-group{display:flex;gap:10px}
.span-2{grid-column:span 2}
.muted{color:var(--muted)}
.header-actions{display:flex;gap:10px}
.invoice-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(420px,.9fr);gap:18px;align-items:start}
.items-header{display:flex;justify-content:space-between;align-items:center;margin:16px 0 10px}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:16px}
.items-table,.preview-table{width:100%;border-collapse:collapse;font-size:13px}
.items-table th,.items-table td,.preview-table th,.preview-table td{padding:10px;border-bottom:1px solid var(--border);vertical-align:top}
.items-table input,.items-table select{min-width:90px;width:100%;padding:8px;border:1px solid var(--border);border-radius:10px}
.totals-grid{display:grid;grid-template-columns:1fr 280px;gap:16px;margin-top:16px}
.summary-box,.preview-totals{display:flex;flex-direction:column;gap:10px;background:#f8fafc;border:1px solid var(--border);border-radius:16px;padding:16px}
.summary-box div,.preview-totals div{display:flex;justify-content:space-between}
.summary-box .grand,.preview-totals .grand{font-size:20px}
.invoice-preview{position:sticky;top:20px}
.invoice-paper{background:#fff;color:#111827}
.invoice-top,.buyer-box,.signatures{display:flex;justify-content:space-between;gap:18px}
.invoice-top{border-bottom:2px solid #111827;padding-bottom:16px}
.seller-block{display:flex;gap:14px;align-items:flex-start}
.logo-preview{width:88px;height:88px;object-fit:contain;border:1px solid var(--border);border-radius:14px;display:none}
.invoice-meta h1{margin:0 0 10px}
.buyer-box{padding:16px 0;border-bottom:1px solid var(--border)}
.terms-box{margin-top:16px;border-top:1px solid var(--border);padding-top:14px}
.terms-box ol{padding-left:18px}
.signatures{margin-top:18px;align-items:flex-end}
.for-company{text-align:right;min-width:260px}
.signature-line{height:64px;border-bottom:1px solid #111827}
.integration-list{margin:0;padding-left:18px}
@media (max-width:1100px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{position:static}
  .invoice-layout{grid-template-columns:1fr}
  .invoice-preview{position:static}
  .totals-area{grid-template-columns:1fr}
  .totals-grid{grid-template-columns:1fr}
}
@page{
  size:A4;
  margin:8mm;
}

@media print{
  html,body{width:210mm;height:297mm}
  body{background:#fff;margin:0;padding:0;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .no-print,.sidebar,.page-header,.items-header button{display:none !important}
  .app-shell,.content,.card,.invoice-layout{display:block;padding:0;margin:0;border:none;box-shadow:none;background:#fff}
  #setupSection,#settingsSection{display:none !important}
  #invoiceSection{display:block !important;margin:0;padding:0}
  #invoiceForm{display:none !important}
  .invoice-preview{position:static;top:auto}
  .invoice-paper{padding:0;margin:0;font-size:10px;line-height:1.2}
  .invoice-top,.buyer-box,.signatures{gap:10px}
  .invoice-top{padding-bottom:8px;margin-bottom:6px}
  .seller-block{gap:8px}
  .logo-preview{width:54px;height:54px;border-radius:8px}
  .invoice-meta h1{font-size:18px;margin:0 0 6px;font-family:Arial,Helvetica,'Segoe UI',sans-serif;font-weight:700;letter-spacing:.06em;font-synthesis:none;font-variant-ligatures:none}
  .invoice-paper h2{font-size:16px;margin:0 0 3px}
  .invoice-paper h3{font-size:12px;margin:0 0 4px}
  .invoice-paper p{margin:2px 0}
  .preview-table{table-layout:fixed;font-size:8.5px}
  .preview-table th,.preview-table td{padding:4px 3px;word-break:break-word}
  .totals-area{grid-template-columns:1.2fr .8fr;gap:8px;margin-top:8px}
  .notes-box,.preview-totals{padding:8px;border-radius:8px}
  .summary-box .grand,.preview-totals .grand{font-size:13px}
  .terms-box{margin-top:8px;padding-top:8px}
  .terms-box ol{margin:4px 0 0;padding-left:16px}
  .terms-box li{margin:1px 0}
  .signatures{margin-top:10px;align-items:flex-end}
  .for-company{min-width:180px}
  .signature-line{height:36px}
}

.notes-box{background:#f8fafc;border:1px solid var(--border);border-radius:16px;padding:16px}
.notes-box h3{margin-top:0}
.totals-area{display:grid;grid-template-columns:1fr 320px;gap:16px;margin-top:16px;align-items:start}
#previewBusinessType{font-weight:600;color:#374151}

.invoice-meta h1{text-transform:uppercase}