#appFridge {
      --bg:#f5f5f7;--bg2:#ffffff;--bg3:#ededf0;--border:rgba(0,0,0,0.12);
      --accent:#3b82f6;--accent-h:#2563eb;--green:#22c55e;--red:#ef4444;
      --amber:#f59e0b;--text:#111111;--muted:#6b7280;--radius:10px;
      --shadow:0 4px 24px rgba(0,0,0,.08);--nav-h:64px;
      background:var(--bg);color:var(--text);
      font-family:'Inter','Segoe UI',system-ui,sans-serif;
    }
    #appFridge *,#appFridge *::before,#appFridge *::after{box-sizing:border-box;margin:0;padding:0;}
    #appFridge a{color:var(--accent);}
    #appFridge input,#appFridge select,#appFridge textarea{background:var(--bg);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:.9rem;padding:.45rem .65rem;width:100%;outline:none;transition:border .15s;}
    #appFridge input:focus,#appFridge select:focus,#appFridge textarea:focus{border-color:var(--accent);}
    #appFridge label{display:flex;flex-direction:column;gap:4px;font-size:.82rem;color:var(--muted);font-weight:500;}
    /* main */
    #appFridge .app-main{padding:1rem;padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 1rem);max-width:1300px;margin:0 auto;}
    #appFridge .tab-section{display:none;}
    #appFridge .tab-section.active{display:block;}
    #appFridge .section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.1rem;flex-wrap:wrap;gap:.5rem;}
    #appFridge .section-header h2{font-size:1.2rem;font-weight:700;}
    /* buttons */
    #appFridge .btn{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;border-radius:7px;font-size:.84rem;font-weight:600;cursor:pointer;border:none;transition:background .15s,opacity .15s;white-space:nowrap;}
    #appFridge .btn:disabled{opacity:.5;pointer-events:none;}
    #appFridge .btn-primary{background:var(--accent);color:#fff;}
    #appFridge .btn-primary:hover{background:var(--accent-h);}
    #appFridge .btn-ghost{background:var(--bg3);color:var(--text);border:1px solid var(--border);}
    #appFridge .btn-ghost:hover{background:var(--border);}
    #appFridge .btn-danger{background:rgba(239,68,68,.1);color:#c62828;border:1px solid rgba(198,40,40,.4);font-weight:600;}
    #appFridge .btn-danger:hover{background:rgba(239,68,68,.2);}
    #appFridge .btn-sm{padding:.3rem .65rem;font-size:.78rem;}
    #appFridge .btn-icon{padding:.3rem .45rem;}
    /* cards */
    #appFridge .card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.75rem;}
    #appFridge .product-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;display:flex;flex-direction:column;gap:.4rem;position:relative;}
    #appFridge .product-card.inactive{opacity:.5;}
    #appFridge .product-card-name{font-size:.95rem;font-weight:600;}
    #appFridge .product-card-price{font-size:.82rem;color:var(--muted);}
    #appFridge .product-card-price strong{color:var(--green);}
    #appFridge .product-card-actions{display:flex;gap:.35rem;margin-top:.5rem;}
    #appFridge .product-badge{position:absolute;top:.65rem;right:.65rem;font-size:.65rem;padding:.18rem .45rem;border-radius:100px;font-weight:600;}
    #appFridge .badge-active{background:rgba(34,197,94,.15);color:var(--green);}
    #appFridge .badge-inactive{background:rgba(100,116,139,.15);color:var(--muted);}
    /* filter */
    #appFridge .filter-bar{display:flex;align-items:flex-end;gap:.65rem;flex-wrap:wrap;margin-bottom:.75rem;}
    #appFridge .filter-bar label{flex:1 1 140px;min-width:130px;}
    #appFridge .purchase-summary-bar{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:.75rem;font-size:.82rem;color:var(--muted);}
    #appFridge .purchase-summary-bar span strong{color:var(--text);}
    /* table */
    #appFridge .table-wrap{overflow-x:auto;}
    #appFridge .data-table{width:100%;border-collapse:collapse;font-size:.82rem;min-width:700px;}
    #appFridge .data-table th{background:var(--bg3);color:var(--muted);font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;padding:.55rem .7rem;text-align:left;white-space:nowrap;position:sticky;top:0;}
    #appFridge .data-table td{padding:.5rem .7rem;border-bottom:1px solid var(--border);color:var(--text);}
    #appFridge .data-table tbody tr:hover td{background:rgba(0,0,0,.02);}
    #appFridge .num{text-align:right;font-variant-numeric:tabular-nums;}
    #appFridge .green{color:var(--green);}
    #appFridge .red{color:var(--red);}
    #appFridge .amber{color:var(--amber);}
    /* snapshot */
    #appFridge .snapshot-dates{display:flex;flex-wrap:wrap;gap:.65rem;margin-bottom:1rem;}
    #appFridge .snapshot-date-chip{background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:.6rem 1rem;cursor:pointer;transition:border-color .15s,background .15s;font-size:.85rem;}
    #appFridge .snapshot-date-chip:hover{border-color:var(--accent);background:var(--bg3);}
    #appFridge .snapshot-date-chip .chip-date{font-weight:600;}
    #appFridge .snapshot-date-chip .chip-sub{font-size:.72rem;color:var(--muted);margin-top:2px;}
    #appFridge .inventory-date-header{display:flex;align-items:center;gap:.75rem;margin-bottom:.75rem;flex-wrap:wrap;}
    #appFridge .inventory-date-header span{font-weight:700;font-size:1rem;flex:1;}
    /* accounting */
    #appFridge .summary-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.75rem;margin-bottom:1.25rem;}
    #appFridge .summary-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:.85rem 1rem;}
    #appFridge .summary-card-label{font-size:.72rem;color:var(--muted);font-weight:500;margin-bottom:.25rem;text-transform:uppercase;letter-spacing:.04em;}
    #appFridge .summary-card-val{font-size:1.35rem;font-weight:700;}
    #appFridge .summary-card-val.green{color:var(--green);}
    #appFridge .summary-card-val.red{color:var(--red);}
    #appFridge .summary-card-val.amber{color:var(--amber);}
    #appFridge .summary-card-val.blue{color:var(--accent);}
    /* periods */
    #appFridge #fr-periodsList{display:flex;flex-direction:column;gap:.65rem;}
    #appFridge .period-chip{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:.85rem 1.1rem;cursor:pointer;transition:border-color .15s,background .15s;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;align-items:center;column-gap:1rem;}
    #appFridge .period-chip:hover{border-color:var(--accent);background:var(--bg3);}
    #appFridge .period-chip-label{font-weight:700;font-size:.95rem;grid-column:1;}
    #appFridge .period-chip-range{font-size:.82rem;color:var(--accent);font-weight:600;grid-column:1;margin-top:2px;}
    #appFridge .period-chip-meta{font-size:.72rem;color:var(--muted);grid-column:1;margin-top:3px;}
    #appFridge .period-chip-arrow{grid-column:2;grid-row:1/-1;color:var(--muted);font-size:.85rem;}
    #appFridge .period-detail-title{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;}
    #appFridge .period-detail-title span:first-child{font-size:1rem;font-weight:700;}
    #appFridge .period-detail-range{font-size:.78rem;color:var(--muted);}
    #appFridge .payments-section{margin-top:2rem;border-top:1px solid var(--border);padding-top:1.25rem;}
    #appFridge .payments-header h3{font-size:.95rem;font-weight:700;}
    #appFridge .deviation-bar{margin-top:.85rem;border-radius:8px;padding:.65rem 1rem;font-size:.85rem;font-weight:500;display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;}
    #appFridge .deviation-short{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:var(--red);}
    #appFridge .deviation-over{background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.3);color:var(--amber);}
    #appFridge .deviation-exact{background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.3);color:var(--green);}
    #appFridge tr.totals-row td{border-top:2px solid var(--border);font-weight:600;background:var(--bg3);}
    /* modals */
    #appFridge .modal-backdrop{display:none;position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.6);align-items:center;justify-content:center;padding:1rem;}
    #appFridge .modal-backdrop.open{display:flex;}
    #appFridge .modal{background:var(--bg2);border:1px solid var(--border);border-radius:14px;width:100%;max-width:440px;box-shadow:var(--shadow);max-height:90vh;display:flex;flex-direction:column;}
    #appFridge .modal-wide{max-width:800px;}
    #appFridge .modal-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--border);}
    #appFridge .modal-header h3{font-size:1rem;font-weight:700;}
    #appFridge .modal-close{background:none;border:none;cursor:pointer;color:var(--muted);font-size:1rem;padding:.25rem;border-radius:5px;}
    #appFridge .modal-close:hover{color:var(--text);background:var(--bg3);}
    #appFridge .modal-body{padding:1rem 1.25rem;display:flex;flex-direction:column;gap:.75rem;overflow-y:auto;}
    #appFridge .modal-footer{padding:.85rem 1.25rem;border-top:1px solid var(--border);display:flex;gap:.5rem;justify-content:flex-end;}
    /* purchase lines */
    #appFridge .purchase-line{background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:.75rem;display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr auto;gap:.5rem;align-items:end;}
    @media(max-width:640px){#appFridge .purchase-line{grid-template-columns:1fr 1fr;}}
    #appFridge .purchase-line .line-derived{font-size:.75rem;color:var(--muted);background:var(--bg);border-radius:5px;padding:.4rem .6rem;display:flex;flex-direction:column;gap:1px;}
    #appFridge .purchase-line .line-derived span{color:var(--text);font-weight:600;}
    #appFridge .add-line-btn{margin-top:.25rem;}
    #appFridge .purchase-batch-total{padding:.65rem 1.25rem;border-top:1px solid var(--border);font-size:.85rem;color:var(--muted);display:flex;gap:1.25rem;flex-wrap:wrap;}
    #appFridge .purchase-batch-total strong{color:var(--text);}
    /* inventory */
    #appFridge .inventory-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.6rem;}
    #appFridge .inv-item{background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:.65rem .75rem;display:flex;flex-direction:column;gap:.35rem;}
    #appFridge .inv-item-name{font-size:.82rem;font-weight:600;}
    /* toast */
    .fr-toast{position:fixed;bottom:calc(var(--nav-h) + 1rem + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:var(--bg3);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:.6rem 1.1rem;font-size:.85rem;box-shadow:var(--shadow);z-index:999;opacity:0;pointer-events:none;transition:opacity .25s;white-space:nowrap;}
    .fr-toast.fr-toast-show{opacity:1;}
    .fr-toast.fr-toast-success{border-color:var(--green);color:var(--green);}
    .fr-toast.fr-toast-error{border-color:var(--red);color:var(--red);}
    /* bottom nav */
    #appFridge .bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:100;background:var(--bg2);border-top:1px solid var(--border);box-shadow:0 -4px 24px rgba(0,0,0,.45);display:flex;padding-bottom:env(safe-area-inset-bottom);}
    #appFridge .tab-btn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:.5rem .25rem;min-height:var(--nav-h);border:none;background:none;cursor:pointer;color:var(--muted);font-size:.62rem;font-weight:600;border-top:2px solid transparent;transition:color .15s,background .15s,border-color .15s;text-transform:uppercase;letter-spacing:.04em;-webkit-tap-highlight-color:transparent;}
    #appFridge .tab-btn i{font-size:1.35rem;transition:transform .15s;}
    #appFridge .tab-btn:hover{color:var(--text);background:rgba(0,0,0,.04);}
    #appFridge .tab-btn.active{color:var(--accent);border-top-color:var(--accent);background:rgba(59,130,246,.06);}
    #appFridge .tab-btn.active i{transform:scale(1.1);}
    /* misc */
    #appFridge .hint{font-size:.78rem;color:var(--muted);}
    #appFridge .empty-state{text-align:center;color:var(--muted);padding:3rem 1rem;font-size:.9rem;}
    #appFridge .empty-state i{font-size:2rem;display:block;margin-bottom:.75rem;}
    @media(max-width:560px){#appFridge .app-main{padding:.75rem;padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + .75rem);}#appFridge .modal{border-radius:16px 16px 0 0;margin-top:auto;max-height:92vh;}#appFridge .modal-backdrop{align-items:flex-end;padding:0;}#appFridge .summary-cards{grid-template-columns:repeat(2,1fr);}}

/* ── Print / PDF — handled via popup window, no print CSS needed here ─── */