/* Instant Invoice Generator — front-end styles */
.iig-app{--iig-accent:#2563eb;--iig-border:#e2e8f0;--iig-muted:#64748b;--iig-bg:#fff;--iig-field:#f8fafc;--iig-text:#0f172a;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--iig-text);max-width:1200px;margin:0 auto;}
.iig-app *{box-sizing:border-box}

/* AI Quick Fill */
.iig-ai{background:var(--iig-field);border:1px solid var(--iig-border);border-radius:14px;padding:20px;margin-bottom:22px}
.iig-ai[data-ai-available="0"]{opacity:.97}
.iig-ai__title{margin:0 0 4px;font-size:1.25rem}
.iig-ai__sub{margin:0 0 12px;color:var(--iig-muted);font-size:.92rem}
.iig-ai__input{width:100%;border:1px solid var(--iig-border);border-radius:10px;padding:12px;font:inherit;resize:vertical;background:var(--iig-bg);color:var(--iig-text)}
.iig-ai__actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px}
.iig-ai__status{font-size:.85rem;color:var(--iig-muted)}
.iig-ai__note{margin:10px 0 0;font-size:.8rem;color:var(--iig-muted)}

/* Buttons */
.iig-btn{cursor:pointer;border:1px solid var(--iig-border);background:var(--iig-bg);color:var(--iig-text);
  padding:10px 16px;border-radius:10px;font:inherit;font-weight:600;font-size:.9rem;transition:.15s}
.iig-btn:hover{border-color:var(--iig-accent)}
.iig-btn--primary{background:var(--iig-accent);border-color:var(--iig-accent);color:#fff}
.iig-btn--primary:hover{filter:brightness(1.07)}
.iig-btn--ghost{background:transparent}
.iig-btn--add{width:100%;border-style:dashed;margin-top:8px}
.iig-link{background:none;border:none;color:var(--iig-accent);cursor:pointer;font:inherit;text-decoration:underline;padding:0}

/* Layout */
.iig-grid{display:grid;grid-template-columns:55% 45%;gap:22px;align-items:start}
.iig-editor{display:flex;flex-direction:column;gap:16px}
.iig-card{border:1px solid var(--iig-border);border-radius:14px;padding:16px;background:var(--iig-bg)}
.iig-card h3{margin:0 0 12px;font-size:1rem}
.iig-card__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.iig-card__head h3{margin:0}
.iig-logo{font-size:.85rem;color:var(--iig-accent);cursor:pointer;border:1px dashed var(--iig-border);padding:6px 10px;border-radius:8px}
.iig-row2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.iig-field{display:flex;flex-direction:column;gap:4px;font-size:.78rem;color:var(--iig-muted)}
.iig-in{width:100%;border:1px solid var(--iig-border);border-radius:8px;padding:9px 10px;font:inherit;font-size:.9rem;
  background:var(--iig-field);color:var(--iig-text);margin-bottom:0}
.iig-in:focus{outline:2px solid var(--iig-accent);outline-offset:-1px}
textarea.iig-in{margin-bottom:10px;resize:vertical}
.iig-inline{display:flex;gap:6px}
.iig-in--sm{max-width:72px}
.iig-in--color{height:38px;padding:3px}

/* Items */
.iig-item{display:grid;grid-template-columns:1fr 62px 90px 40px;gap:6px;margin-bottom:8px;align-items:center}
.iig-item__amt{font-size:.85rem;text-align:right;color:var(--iig-muted)}
.iig-item__del{cursor:pointer;border:none;background:none;color:#ef4444;font-size:1.1rem;line-height:1}
.iig-item-head{display:grid;grid-template-columns:1fr 62px 90px 40px;gap:6px;font-size:.72rem;color:var(--iig-muted);margin-bottom:6px}

.iig-save{font-size:.82rem;color:var(--iig-muted);margin:4px 2px}

/* Preview */
.iig-previewwrap{position:sticky;top:16px}
.iig-toolbar{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.iig-preview{border:1px solid var(--iig-border);border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 4px 24px rgba(0,0,0,.06)}

/* Invoice document (shared) */
.iig-doc{background:#fff;color:#0f172a;padding:34px;font-size:13px;line-height:1.5}
.iig-doc__top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.iig-doc__logo{max-height:64px;max-width:180px;object-fit:contain}
.iig-doc h1{font-size:26px;margin:0 0 4px;letter-spacing:.04em}
.iig-doc__meta{text-align:right;font-size:12px;color:#475569}
.iig-doc__parties{display:flex;justify-content:space-between;gap:20px;margin:24px 0}
.iig-doc__parties h4{margin:0 0 4px;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:#94a3b8}
.iig-doc table{width:100%;border-collapse:collapse;margin:12px 0}
.iig-doc th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#94a3b8;padding:8px 6px;border-bottom:2px solid var(--iig-accent)}
.iig-doc td{padding:9px 6px;border-bottom:1px solid #eef2f7;vertical-align:top}
.iig-doc .num{text-align:right;white-space:nowrap}
.iig-doc__totals{margin-left:auto;width:56%;margin-top:8px}
.iig-doc__totals div{display:flex;justify-content:space-between;padding:5px 0;font-size:13px}
.iig-doc__totals .grand{border-top:2px solid var(--iig-accent);margin-top:6px;padding-top:10px;font-size:16px;font-weight:700}
.iig-doc__notes{margin-top:24px;font-size:12px;color:#475569;white-space:pre-wrap}
.iig-doc__foot{margin-top:8px;font-size:12px;color:#475569}

/* Template variants */
.iig-doc--modern .iig-doc__top{background:var(--iig-accent);color:#fff;margin:-34px -34px 0;padding:28px 34px}
.iig-doc--modern .iig-doc__meta{color:rgba(255,255,255,.85)}
.iig-doc--modern h1{color:#fff}
.iig-doc--professional{font-family:Georgia,"Times New Roman",serif}
.iig-doc--professional h1{letter-spacing:.12em;font-weight:400}

@media (max-width:820px){
  .iig-grid{grid-template-columns:1fr}
  .iig-previewwrap{position:static;order:-1}
}
@media (prefers-color-scheme:dark){
  .iig-app{--iig-border:#334155;--iig-muted:#94a3b8;--iig-bg:#0f172a;--iig-field:#1e293b;--iig-text:#e2e8f0}
  /* the invoice document itself stays white (it is a printable page) */
}