:root{
  --bg:#f4f7fb;--panel:#0f172a;--panel-2:#111c32;--panel-3:#16233d;--text:#0f172a;--muted:#64748b;
  --line:#cbd5e1;--line-soft:#e2e8f0;--primary:#2563eb;--primary-hover:#1d4ed8;--danger:#dc2626;--danger-hover:#b91c1c;
  --surface:#fff;--head:#eef4ff;--stripe:#f8fafc;--success:#059669;--shadow:0 16px 42px rgba(15,23,42,.08);
  --radius:14px;--font:Tahoma,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.8 var(--font);-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit}
button{touch-action:manipulation}
img{max-width:100%}
.is-hidden{display:none!important}
.noscript{padding:14px 20px;background:#fee2e2;color:#991b1b;text-align:center;font-weight:700}
.app-shell{min-height:100vh;display:grid;grid-template-columns:minmax(320px,390px) minmax(0,1fr)}
.panel{position:sticky;top:0;height:100vh;overflow:auto;background:linear-gradient(180deg,var(--panel),#0b1120);color:#e5e7eb;padding:18px 16px 80px;border-left:1px solid #1e293b;scrollbar-width:thin}
.panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.brand-title{font-size:22px;font-weight:900;color:#fff;letter-spacing:-.4px}.brand-subtitle{font-size:11px;color:#94a3b8}
.storage-badge,.count-badge,.edit-badge{display:inline-flex;align-items:center;border-radius:999px;padding:3px 9px;font-size:11px;font-weight:800}
.storage-badge{background:#0f2f26;color:#6ee7b7;border:1px solid #14532d}.count-badge{background:#1e3a8a;color:#dbeafe}.edit-badge{background:#78350f;color:#fde68a}
.sticky-actions{position:sticky;top:0;z-index:5;padding:8px 0 10px;background:linear-gradient(180deg,#0f172a 80%,rgba(15,23,42,0))}
.panel-actions,.button-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.button-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.button-grid+.button-grid{margin-top:8px}
.panel-card{background:linear-gradient(180deg,var(--panel-2),#0d172a);border:1px solid #243650;border-radius:var(--radius);padding:13px;margin-bottom:11px}
.panel-card h2{font-size:14px;margin:0 0 10px;color:#f8fafc}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}
.panel label{display:block;margin:8px 0 4px;color:#cbd5e1;font-size:12px;font-weight:700}
.panel input,.panel textarea{width:100%;border:1px solid #334a6e;border-radius:10px;background:#0c1729;color:#f8fafc;padding:9px 10px;outline:none;transition:.18s border-color,.18s box-shadow}
.panel input:focus,.panel textarea:focus{border-color:#60a5fa;box-shadow:0 0 0 3px rgba(59,130,246,.18)}
.panel input[type=file]{padding:7px;font-size:12px}.panel textarea{min-height:94px;resize:vertical}
.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.field-help,.privacy-note{margin:5px 0 0;color:#94a3b8;font-size:11px;line-height:1.65}.privacy-note{margin-top:10px}
.btn{border:0;border-radius:10px;padding:8px 11px;font-weight:800;cursor:pointer;transition:.15s transform,.15s background,.15s opacity;min-height:38px}.btn:active{transform:translateY(1px)}.btn:disabled{cursor:not-allowed;opacity:.55}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:#334155;color:#fff}.btn-secondary:hover{background:#475569}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-ghost{background:#1e293b;color:#e2e8f0}.btn-full{width:100%;margin-top:8px}
.invoice-list,.panel-items{display:flex;flex-direction:column;gap:7px;max-height:230px;overflow:auto;margin-top:10px;padding-left:2px}
.invoice-list-item,.panel-item{display:grid;align-items:center;gap:8px;background:#0c1729;border:1px solid #2b405f;border-radius:11px;padding:8px}.invoice-list-item{grid-template-columns:minmax(0,1fr) auto}.invoice-list-item.active{border-color:#60a5fa;box-shadow:0 0 0 2px rgba(59,130,246,.18)}
.invoice-list-item strong{display:block;color:#f8fafc;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.invoice-list-item small{color:#94a3b8}.invoice-list-item .open-btn{min-height:31px;padding:4px 9px;font-size:11px}
.panel-item{grid-template-columns:52px minmax(0,1fr) auto}.panel-item img{width:52px;height:44px;object-fit:cover;border-radius:8px;background:#fff;border:1px solid #334155}.panel-item-title{color:#f8fafc;font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.panel-item-meta{font-size:11px;color:#94a3b8}.panel-item-actions{display:flex;gap:5px}.mini-btn{min-height:30px;padding:4px 8px;font-size:11px}
.page{min-width:0;padding:24px}.page-toolbar{max-width:1100px;margin:0 auto 10px;display:flex;align-items:center;justify-content:space-between;gap:12px}.save-state{font-size:12px;color:var(--muted)}
.invoice{max-width:1100px;margin:0 auto;background:var(--surface);border:1px solid var(--line-soft);border-radius:18px;padding:26px;box-shadow:var(--shadow)}
.invoice-header{display:grid;grid-template-columns:130px minmax(0,1fr) 220px;align-items:center;gap:18px;margin-bottom:18px}.invoice-logo-wrap{min-width:0}.invoice-logo{width:94px;height:72px;object-fit:contain;border-radius:10px;background:#fff}.invoice-title{text-align:center;font-size:22px;line-height:1.4;margin:0;font-weight:900;color:#0f172a}.invoice-number-box{font-size:13px;color:#475569;line-height:2}.invoice-number-box strong{color:#0f172a}
.meta-grid{display:grid;grid-template-columns:120px minmax(0,1fr) minmax(0,1fr) 180px;border:1px solid #b9c8da;border-radius:12px;overflow:hidden}.meta-grid>div{padding:9px 10px;border-left:1px solid #b9c8da;border-bottom:1px solid #b9c8da;min-height:43px}.meta-grid>div:nth-last-child(-n+4){border-bottom:0}.meta-grid>div:nth-child(4n){border-left:0}.meta-label{font-weight:900;background:var(--head)}.meta-caption{color:#64748b}.meta-status{font-weight:900;color:#1d4ed8;background:#f8fbff}.status-note{margin-top:7px;color:#64748b;min-height:24px;font-size:12px}
.table-scroll{overflow-x:auto;margin-top:12px;border:1px solid #b9c8da;border-radius:12px}.items-table{width:100%;border-collapse:collapse;min-width:760px}.items-table th{background:var(--head);font-weight:900;padding:10px 8px;border-bottom:1px solid #b9c8da;white-space:nowrap}.items-table td{padding:10px 8px;border-bottom:1px solid #dbe4ef;text-align:center;vertical-align:middle}.items-table tbody tr:nth-child(even){background:var(--stripe)}.items-table tbody tr:last-child td{border-bottom:0}.items-table .text-right,.product-cell{text-align:right}.product-name{font-weight:900}.product-desc{font-size:12px;color:#64748b;margin-top:2px}.thumb{width:68px;height:48px;object-fit:cover;border:1px solid var(--line);border-radius:8px;background:#fff}.empty-items{padding:18px;text-align:center;color:#94a3b8;border:1px dashed var(--line);border-radius:12px;margin-top:12px}
.invoice-footer-grid{display:grid;grid-template-columns:minmax(260px,34%) minmax(0,1fr);gap:14px;margin-top:14px}.sum-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid #b9c8da;border-radius:11px;overflow:hidden}.sum-table td{padding:10px;border-bottom:1px solid #dbe4ef}.sum-table tr:last-child td{border-bottom:0}.sum-table td:first-child{font-weight:900;background:var(--head)}.sum-table td:last-child{text-align:left;font-variant-numeric:tabular-nums}.sum-table .payable td{font-weight:900;background:#eaf2ff;color:#0f172a}.notes{min-height:106px;border:1px dashed #b9c8da;border-radius:11px;padding:10px 12px;background:#fbfdff}.notes ul{margin:0;padding-right:20px}.stamp{margin-top:10px;border:1px solid #3156a4;border-radius:10px;padding:8px 12px;text-align:center;font-weight:900;color:#3156a4}
.app-footer{max-width:1100px;margin:16px auto 0;text-align:center;color:#94a3b8;font-size:11px}.toast-region{position:fixed;left:18px;bottom:18px;z-index:1000;display:flex;flex-direction:column;gap:8px;max-width:min(360px,calc(100vw - 36px))}.toast{background:#0f172a;color:#f8fafc;border:1px solid #334155;border-radius:11px;padding:10px 13px;box-shadow:0 12px 30px rgba(15,23,42,.26);animation:toast-in .18s ease-out}.toast.success{border-color:#047857}.toast.error{border-color:#b91c1c}.toast.warning{border-color:#b45309}@keyframes toast-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.panel-collapsed .panel{display:none}.panel-collapsed{grid-template-columns:1fr}
@media(max-width:1050px){.app-shell{grid-template-columns:1fr}.panel{position:relative;height:auto;max-height:none;border-left:0;border-bottom:1px solid #1e293b}.page{padding:16px}.page-toolbar{position:sticky;top:8px;z-index:20;background:rgba(244,247,251,.88);backdrop-filter:blur(10px);padding:7px;border-radius:12px}.panel-collapsed .panel{display:none}.invoice{padding:20px}.invoice-header{grid-template-columns:100px minmax(0,1fr) 180px}}
@media(max-width:700px){.field-grid{grid-template-columns:1fr}.button-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.page{padding:10px}.invoice{padding:14px;border-radius:12px}.invoice-header{grid-template-columns:80px 1fr;gap:10px}.invoice-number-box{grid-column:1/-1;display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line-soft);padding-top:8px}.invoice-title{text-align:right;font-size:18px}.invoice-logo{width:70px;height:56px}.meta-grid{grid-template-columns:90px minmax(0,1fr)}.meta-grid>div{border-left:1px solid #b9c8da!important;border-bottom:1px solid #b9c8da!important}.meta-grid>div:nth-child(even){border-left:0!important}.meta-grid>div:nth-last-child(-n+2){border-bottom:0!important}.status-label{order:7}.meta-status{order:8}.invoice-footer-grid{grid-template-columns:1fr}.totals-wrap{order:2}.toast-region{left:10px;bottom:10px}}
@media(max-width:430px){.button-grid.three{grid-template-columns:1fr}.button-grid{grid-template-columns:1fr}.panel{padding:14px 12px 60px}.page-toolbar{align-items:stretch}.page-toolbar .btn{flex:1}.save-state{display:flex;align-items:center}.invoice-number-box{display:grid;grid-template-columns:1fr}.invoice-footer-grid{gap:10px}}
@media print{
  @page{size:A4;margin:10mm}
  html,body{background:#fff}.app-shell{display:block}.panel,.page-toolbar,.no-print,.app-footer,.toast-region{display:none!important}.page{padding:0}.invoice{max-width:none;border:0;border-radius:0;box-shadow:none;padding:0}.invoice-header{grid-template-columns:100px 1fr 190px}.invoice-title{font-size:18px}.table-scroll{overflow:visible}.items-table{min-width:0;font-size:11px}.items-table th,.items-table td{padding:6px 5px}.thumb{width:50px;height:36px}.invoice-footer-grid{grid-template-columns:34% 1fr;break-inside:avoid}.meta-grid,.table-scroll,.sum-table,.notes,.stamp{break-inside:avoid}.empty-items{display:none!important}*{-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important}
}