:root {
      --bg:        #f0ede8;
      --surface:   #faf8f5;
      --border:    #ddd8cf;
      --border-2:  #c9c2b7;
      --text:      #1a1714;
      --muted:     #6b6560;
      --accent:    #2c4a8c;
      --accent-lt: #e8edf7;
      --green:     #1e6b45;
      --green-lt:  #e4f3ec;
      --red:       #8c2c2c;
      --red-lt:    #f3e4e4;
      --amber:     #7a5c10;
      --amber-lt:  #faf0d7;
      --shadow:    0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.05);
      --radius:    6px;
      --mono:      'IBM Plex Mono', monospace;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      font-family: 'IBM Plex Sans', sans-serif;
      background: var(--bg);
      color: var(--text);
      font-size: 14px;
      line-height: 1.5;
    }

    /* ── Layout ── */
    .page-wrap { max-width: 1410px; margin: auto; padding: 24px 28px; }

    /* ── Header ── */
    .page-header {
      display: flex; align-items: flex-start; justify-content: space-between;
      margin-bottom: 2px; gap: 6px; flex-wrap: wrap;
    }
    .page-title { font-size: 22px; font-weight: 700; letter-spacing: -.3px; }
    .page-sub   { font-size: 13px; color: var(--muted); margin-top: 2px; font-family: var(--mono); }

    /* ── Stat cards ── */
    .stats-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; margin-bottom: 22px; }
    .stat-card {
      background: var(--surface); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 16px 18px;
      display: flex; align-items: center; gap: 14px;
    }
    .stat-icon {
      width: 38px; height: 38px; border-radius: 6px;
      display: flex; align-items: center; justify-content: center;
      font-size: 17px; flex-shrink: 0;
    }
    .stat-icon.blue   { background: var(--accent-lt); color: var(--accent); }
    .stat-icon.green  { background: var(--green-lt);  color: var(--green);  }
    .stat-icon.amber  { background: var(--amber-lt);  color: var(--amber);  }
    .stat-icon.red    { background: var(--red-lt);    color: var(--red);    }
    .stat-val  { font-size: 24px; font-weight: 700; line-height: 1; font-family: var(--mono); }
    .stat-lbl  { font-size: 12px; color: var(--muted); margin-top: 2px; }

    /* ── Toolbar ── */
    .toolbar {
      background: var(--surface); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 12px 16px;
      display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
      margin-bottom: 16px;
    }
    .toolbar .search-wrap {
      flex: 1; min-width: 200px; position: relative;
    }
    .toolbar .search-wrap i {
      position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
      color: var(--muted); font-size: 14px;
    }
    .toolbar input, .toolbar select {
      height: 34px; border: 1px solid var(--border-2); border-radius: var(--radius);
      background: var(--bg); color: var(--text); font-family: inherit; font-size: 13px;
      padding: 0 10px; outline: none; transition: border .15s;
    }
    .toolbar .search-wrap input { padding-left: 32px; width: 100%; }
    .toolbar input:focus, .toolbar select:focus { border-color: var(--accent); }
    .toolbar select { min-width: 140px; }

    /* ── Buttons ── */
    .btn {
      display: inline-flex; align-items: center; gap: 6px;
      height: 34px; padding: 0 14px; border-radius: var(--radius);
      font-family: inherit; font-size: 13px; font-weight: 500;
      border: 1px solid transparent; cursor: pointer; white-space: nowrap;
      transition: all .15s;
    }
    .btn-primary   { background: var(--accent); color: #fff; border-color: var(--accent); }
    .btn-primary:hover { background: #1e3566; }
    .btn-outline   { background: var(--surface); color: var(--text); border-color: var(--border-2); }
    .btn-outline:hover { border-color: var(--accent); color: var(--accent); }
    .btn-danger    { background: var(--red-lt); color: var(--red); border-color: #e8c4c4; }
    .btn-danger:hover { background: var(--red); color: #fff; }
    .btn-success   { background: var(--green-lt); color: var(--green); border-color: #b8dece; }
    .btn-success:hover { background: var(--green); color: #fff; }
    .btn-sm { height: 28px; padding: 0 10px; font-size: 12px; }
    .btn-icon { width: 28px; height: 28px; padding: 0; justify-content: center; }

    /* ── Table ── */
    .table-wrap {
      background: var(--surface); border: 1px solid var(--border);
      border-radius: var(--radius); overflow: hidden;
    }
    table { width: 100%; border-collapse: collapse; }
    thead th {
      background: #edeae4; border-bottom: 1px solid var(--border);
      padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 600;
      text-transform: uppercase; letter-spacing: .5px; color: var(--muted);
      white-space: nowrap;
    }
    tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
    tbody tr:last-child { border-bottom: none; }
    tbody tr:hover { background: #f5f2ed; }
    td { padding: 10px 14px; vertical-align: middle; }

    .prod-code  { font-family: var(--mono); font-size: 12px; color: var(--muted); }
    .prod-name  { font-weight: 500; }
    .prod-cat   { font-size: 12px; color: var(--muted); }

    /* Badges */
    .badge {
      display: inline-flex; align-items: center; gap: 4px;
      padding: 2px 8px; border-radius: 100px; font-size: 11px; font-weight: 500;
    }
    .badge-green  { background: var(--green-lt);  color: var(--green); }
    .badge-red    { background: var(--red-lt);    color: var(--red); }
    .badge-amber  { background: var(--amber-lt);  color: var(--amber); }
    .badge-blue   { background: var(--accent-lt); color: var(--accent); }
    .badge-gray   { background: #ebe8e2; color: var(--muted); }

    /* Stock bar */
    .stock-cell { min-width: 130px; }
    .stock-num  { font-family: var(--mono); font-size: 13px; font-weight: 600; }
    .stock-bar  { height: 3px; background: var(--border); border-radius: 2px; margin-top: 4px; }
    .stock-fill { height: 100%; border-radius: 2px; transition: width .3s; }
    .fill-ok    { background: var(--green); }
    .fill-low   { background: #d97a0c; }
    .fill-zero  { background: var(--red); }

    .actions-cell { display: flex; gap: 4px; flex-wrap: nowrap; }

    /* ── Modals ── */
    .modal-bg {
      display: none; position: fixed; inset: 0;
      background: rgba(10,8,6,.45); backdrop-filter: blur(3px);
      z-index: 1000; align-items: flex-start; justify-content: center;
      overflow-y: auto; padding: 40px 16px;
    }
    .modal-bg.open { display: flex; }
    .modal {
      background: var(--surface); border: 1px solid var(--border);
      border-radius: 10px; width: 100%; max-width: 780px;
      box-shadow: 0 12px 48px rgba(0,0,0,.18);
      animation: slideUp .2s ease;
    }
    .modal.modal-lg { max-width: 1000px; }
    .modal.modal-sm { max-width: 480px; }
    @keyframes slideUp {
      from { transform: translateY(20px); opacity: 0; }
      to   { transform: translateY(0);    opacity: 1; }
    }
    .modal-header {
      display: flex; align-items: center; justify-content: space-between;
      padding: 18px 24px; border-bottom: 1px solid var(--border);
    }
    .modal-title { font-size: 16px; font-weight: 700; }
    .modal-body  { padding: 24px; }
    .modal-footer {
      padding: 16px 24px; border-top: 1px solid var(--border);
      display: flex; gap: 10px; justify-content: flex-end;
    }
    .btn-close-modal {
      background: none; border: none; cursor: pointer; color: var(--muted);
      font-size: 18px; line-height: 1; padding: 4px;
    }
    .btn-close-modal:hover { color: var(--text); }

    /* ── Form grid ── */
    .form-grid { display: grid; gap: 14px; }
    .grid-2 { grid-template-columns: 1fr 1fr; }
    .grid-3 { grid-template-columns: 1fr 1fr 1fr; }
    .grid-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
    .col-span-2 { grid-column: span 2; }
    .col-span-3 { grid-column: span 3; }
    .col-span-4 { grid-column: span 4; }

    .form-group label {
      display: block; font-size: 12px; font-weight: 600;
      text-transform: uppercase; letter-spacing: .4px;
      color: var(--muted); margin-bottom: 5px;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%; border: 1px solid var(--border-2); border-radius: var(--radius);
      background: var(--bg); color: var(--text); font-family: inherit; font-size: 13px;
      padding: 8px 10px; outline: none; transition: border .15s;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus { border-color: var(--accent); }
    .form-group textarea { resize: vertical; min-height: 68px; }

    .section-sep {
      font-size: 11px; font-weight: 700; text-transform: uppercase;
      letter-spacing: .8px; color: var(--muted);
      padding: 10px 0 4px;
      border-top: 1px solid var(--border);
      margin-top: 4px;
    }

    /* ── Grade de variações ── */
    .grade-toggle-row { display: flex; align-items: center; gap: 10px; margin: 6px 0 14px; }
    .toggle-switch {
      position: relative; width: 38px; height: 20px;
      flex-shrink: 0;
    }
    .toggle-switch input { opacity: 0; width: 0; height: 0; }
    .toggle-slider {
      position: absolute; inset: 0;
      background: var(--border-2); border-radius: 20px; cursor: pointer;
      transition: .2s;
    }
    .toggle-slider::before {
      content: ''; position: absolute;
      width: 14px; height: 14px; border-radius: 50%; background: #fff;
      left: 3px; top: 3px; transition: .2s;
    }
    .toggle-switch input:checked + .toggle-slider { background: var(--accent); }
    .toggle-switch input:checked + .toggle-slider::before { transform: translateX(18px); }

    #gradeSection, #gradeSection-edit { margin-top: 2px; }

    .grade-builder {
      border: 1px solid var(--border); border-radius: var(--radius);
      overflow: hidden; margin-top: 10px;
    }
    .grade-header {
      display: grid;
      grid-template-columns: 90px 1fr 130px 80px 110px 36px;
      gap: 0; background: #edeae4;
      border-bottom: 1px solid var(--border);
    }
    .grade-header span {
      padding: 7px 10px; font-size: 11px; font-weight: 700;
      text-transform: uppercase; letter-spacing: .4px; color: var(--muted);
      border-right: 1px solid var(--border);
    }
    .grade-header span:last-child { border-right: none; }
    .grade-body { max-height: 260px; overflow-y: auto; }
    .grade-row {
      display: grid;
      grid-template-columns: 90px 1fr 130px 80px 110px 36px;
      border-bottom: 1px solid var(--border);
      align-items: center;
    }
    .grade-row:last-child { border-bottom: none; }
    .grade-row input, .grade-row select {
      width: 100%; border: none; border-right: 1px solid var(--border);
      background: transparent; padding: 7px 10px;
      font-family: var(--mono); font-size: 13px; color: var(--text);
      outline: none; height: 100%;
    }
    .grade-row input:focus, .grade-row select:focus { background: var(--accent-lt); }
    .grade-row input:last-of-type { border-right: none; }
    .grade-row .btn-icon { margin: 0 auto; border: none; background: none; }
    .grade-row .btn-icon:hover { color: var(--red); }
    .grade-add-btn {
      display: flex; align-items: center; gap: 8px;
      padding: 8px 12px; border-top: 1px solid var(--border);
      font-size: 12px; color: var(--accent); cursor: pointer;
      background: var(--accent-lt); border-radius: 0;
      border: none; width: 100%; font-family: inherit; font-weight: 500;
    }
    .grade-add-btn:hover { background: #dce4f5; }

    /* ── Detail modal ── */
    .detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .detail-section { }
    .detail-section h4 {
      font-size: 11px; font-weight: 700; text-transform: uppercase;
      letter-spacing: .6px; color: var(--muted);
      border-bottom: 1px solid var(--border); padding-bottom: 6px; margin-bottom: 12px;
    }
    .detail-row { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 13px; }
    .detail-label { color: var(--muted); }
    .detail-value { font-weight: 500; font-family: var(--mono); }

    .var-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 4px; }
    .var-table th {
      background: #edeae4; padding: 7px 10px; text-align: left;
      font-size: 11px; font-weight: 700; text-transform: uppercase;
      letter-spacing: .4px; color: var(--muted); border-bottom: 1px solid var(--border);
    }
    .var-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); }
    .var-table tr:last-child td { border-bottom: none; }
    .var-table .mono { font-family: var(--mono); }

    /* ── Move modal ── */
    .move-product-info {
      background: var(--bg); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 12px 14px; margin-bottom: 18px;
    }
    .move-product-name { font-weight: 700; font-size: 15px; }
    .move-product-code { font-family: var(--mono); font-size: 12px; color: var(--muted); }

    .tipo-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
    .tipo-tab {
      flex: 1; padding: 9px; border-radius: var(--radius); border: 1px solid var(--border-2);
      background: var(--bg); cursor: pointer; text-align: center; font-size: 13px;
      font-weight: 500; font-family: inherit; transition: all .15s;
    }
    .tipo-tab.active-entrada { background: var(--green-lt); border-color: #8ecfb0; color: var(--green); }
    .tipo-tab.active-saida   { background: var(--red-lt);   border-color: #e8c4c4; color: var(--red);   }

    /* variação move table */
    .var-move-wrap { margin-top: 14px; }
    .var-move-wrap h5 {
      font-size: 11px; font-weight: 700; text-transform: uppercase;
      letter-spacing: .5px; color: var(--muted); margin-bottom: 8px;
    }
    .var-move-table { width: 100%; border-collapse: collapse; font-size: 13px; }
    .var-move-table th {
      background: #edeae4; padding: 7px 10px; text-align: left;
      font-size: 11px; font-weight: 600; text-transform: uppercase;
      letter-spacing: .4px; color: var(--muted); border-bottom: 1px solid var(--border);
    }
    .var-move-table td { padding: 7px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
    .var-move-table tr:last-child td { border-bottom: none; }
    .var-qty-input {
      width: 72px; border: 1px solid var(--border-2); border-radius: 4px;
      padding: 4px 7px; font-family: var(--mono); font-size: 13px;
      background: var(--bg); color: var(--text); outline: none;
    }
    .var-qty-input:focus { border-color: var(--accent); }

    /* ── Flash messages ── */
    .flash {
      padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px;
      font-size: 13px; display: flex; align-items: center; gap: 8px;
    }
    .flash-success { background: var(--green-lt); color: var(--green); border: 1px solid #b8dece; }
    .flash-error   { background: var(--red-lt);   color: var(--red);   border: 1px solid #e8c4c4; }

    /* ── Empty state ── */
    .empty-state {
      text-align: center; padding: 60px 20px; color: var(--muted);
    }
    .empty-state i { font-size: 40px; opacity: .3; display: block; margin-bottom: 12px; }

    
    .topbar {
      background: var(--surface); border-bottom: 1px solid var(--border-2);
     
      margin-top: -9px;
      margin-bottom: 9px;
      padding: 0 28px; height: 48px;
      display: flex; align-items: center; justify-content: space-between;
      position: sticky; top: 0; z-index: 50;
    }
    .topbar-title { font-family: var(--font-code); font-size: 16px; font-weight: 700; color: var(--text); }
    .topbar-actions { display: flex; gap: 10px; align-items: center; }
    .content { padding: 28px; flex: 1; }

    .btn {
      display: inline-flex; align-items: center; gap: 7px;
      padding: 8px 16px; border-radius: var(--radius);
      font-family: var(--font-body); font-size: 13px; font-weight: 600;
      cursor: pointer; border: none; text-decoration: none;
      transition: all .15s; white-space: nowrap;
    }

    /* ── Responsive ── */
    @media (max-width: 1100px) { .stats-row { grid-template-columns: repeat(2,1fr); } }
    @media (max-width: 768px)  {
      .stats-row { grid-template-columns: 1fr 1fr; }
      .detail-grid { grid-template-columns: 1fr; }
      .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
      .col-span-2, .col-span-3, .col-span-4 { grid-column: span 1; }
    }