:root{
  --primary:#2f87b8;
  --primary-dark:#286f96;
  --secondary:#14a44d;
  --danger:#d9534f;
  --warning:#f0ad4e;
  --muted:#64748b;
  --bg:#e7ebef;
  --card:#ffffff;
  --border:#cfd7df;
  --shadow:0 1px 2px rgba(15,23,42,.06);
  --radius-xs:2px;
  --radius-sm:3px;
  --radius-md:4px;
}

*{box-sizing:border-box}
body{font-family:"Segoe UI",Tahoma,Arial,sans-serif;margin:0;background:var(--bg);color:#1f2937}

.admin-shell{display:flex;min-height:100vh;background:var(--bg)}
.main-area{flex:1;min-width:0}

.sidebar{width:275px;flex:0 0 275px;color:#cfdae6;background:linear-gradient(180deg,#1f2e3c 0%,#172432 100%);border-right:1px solid #2a3b4b;padding:10px 9px;overflow:auto}
.brand{display:block;padding:8px 8px 12px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:10px}
.brand-wide{display:block;width:100%;height:62px;object-fit:cover;object-position:center;border-radius:0;border:0;background:transparent}
.brand-square{display:none;width:50px;height:50px;object-fit:cover;object-position:center;border-radius:0;border:0;background:transparent}
.menu-header{font-size:13px;color:#90a7bb;margin:8px 6px 10px;letter-spacing:.08em}
.menu-group{background:rgba(255,255,255,.02);border:1px solid #304658;border-radius:2px;margin-bottom:9px;padding:8px}
.menu-title{display:flex;align-items:center;gap:8px;font-size:15px;color:#e5f0f8;font-weight:500;margin:0 0 6px;text-transform:none}
.menu-title i{color:#99df65;width:auto;text-align:left}
.menu-link{width:100%;text-decoration:none;border:1px solid #2e4355;background:rgba(255,255,255,.02);color:#dce7f2;padding:10px 10px;border-radius:2px;margin:2px 0;cursor:pointer;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:400;transition:background .15s ease,border-color .15s ease}
.menu-link i{width:16px;text-align:center;color:#9eb8cc}
.menu-link:hover{background:rgba(255,255,255,.06);border-color:#3f586d}
.menu-link.active{background:#2f87b8;border-color:#5ea9d3;color:#fff}
.menu-link.active i{color:#fff}

.sidebar-backdrop{display:none}
body.sidebar-collapsed .sidebar{width:72px;flex-basis:72px;padding-left:6px;padding-right:6px}
body.sidebar-collapsed .brand{display:flex;justify-content:center}
body.sidebar-collapsed .brand-wide{display:none}
body.sidebar-collapsed .brand-square{display:block}
body.sidebar-collapsed .menu-header,
body.sidebar-collapsed .menu-title span,
body.sidebar-collapsed .menu-link span{display:none}
body.sidebar-collapsed .menu-title{justify-content:center}
body.sidebar-collapsed .menu-link{justify-content:center}

.topbar{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(90deg,var(--primary) 0%,#3992c4 55%,#46a1d2 100%);border-bottom:1px solid var(--primary-dark);padding:9px 14px;position:sticky;top:0;z-index:8;color:#fff}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar h1{font-size:20px;margin:0;color:#fff;letter-spacing:.2px;font-weight:600}
.topbar .sub{font-size:13px;color:#d6eaf7;margin-top:1px}
.icon-btn{width:38px;height:38px;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.14);color:#fff;border-radius:2px;cursor:pointer}
.icon-btn:hover{background:rgba(255,255,255,.24)}

.container{max-width:none;margin:0 auto;padding:14px 16px;display:flex;flex-direction:column;gap:12px}

.card{background:var(--card);border:1px solid var(--border);border-radius:5px;box-shadow:0 10px 24px rgba(15,23,42,.06)}
.card header{padding:10px 12px;border-bottom:1px solid var(--border);background:#f8fafc}
.card header h2{margin:0;font-size:18px;color:#1e3347}
.card .content{padding:12px}

.hero-card{border-color:#d8e2ec;background:linear-gradient(180deg,#ffffff 0%,#fbfdff 100%)}
.hero-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.hero-top h2{margin:0;font-size:20px;color:#1f3246}
.hero-top p{margin:6px 0 0;color:#60768d;font-size:14px;max-width:900px}

.stats-grid{margin-top:12px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
.stat-card{border:1px solid #d9e4ef;background:#f8fbff;border-radius:4px;padding:9px 10px;display:flex;flex-direction:column;gap:5px}
.stat-card span{font-size:12px;color:#5f7387;text-transform:uppercase;letter-spacing:.04em}
.stat-card strong{font-size:26px;font-weight:700;color:#1f3246;line-height:1}

.totals-grid{margin-top:10px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}
.totals-grid article{border:1px solid #dce6f0;border-radius:4px;padding:8px 10px;background:#fff;display:flex;flex-direction:column;gap:4px}
.totals-grid span{font-size:12px;color:#5f7387}
.totals-grid strong{font-size:20px;font-weight:700;color:#1f3246;line-height:1.1}

.controls-card{border-color:#d8e2ec}
.filters-grid{display:grid;grid-template-columns:1.2fr .8fr auto;gap:10px;align-items:end}
.bulk-grid{margin-top:12px;display:grid;grid-template-columns:minmax(220px,.55fr) 1fr;gap:10px;align-items:end}
.bulk-actions{display:flex;gap:8px;flex-wrap:wrap}
.quick-tools{margin-top:10px;border:1px solid #dbe6f0;border-radius:4px;background:#f8fbff;padding:9px 10px}
.quick-tools-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
.quick-tools-head span{font-size:13px;font-weight:700;color:#344d63}
.quick-tools-head small{font-size:12px;color:#60768d}
.quick-tools-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:8px}

.field{display:flex;flex-direction:column;gap:6px}
.field span{font-size:12px;color:#4f657a;font-weight:600}
.checkbox-field{flex-direction:row;align-items:center;gap:8px;padding:10px 10px;border:1px solid #d8e2ec;border-radius:4px;background:#fbfdff}
.checkbox-field span{font-size:13px;color:#3d556c;font-weight:500}

input[type="text"],
input[type="number"],
select{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:2px;outline:0;background:#fff;transition:border .15s ease,box-shadow .15s ease}
input:focus,
select:focus{border-color:#94a3b8;box-shadow:0 0 0 2px rgba(148,163,184,.18)}

.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;border-radius:2px;padding:9px 12px;font-weight:600;transition:opacity .15s ease;text-decoration:none}
.btn:hover{opacity:.92}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn.primary{background:var(--primary);color:#fff}
.btn.secondary{background:var(--secondary);color:#fff}
.btn.ghost{background:#fff;border:1px solid var(--border);color:#111827}
.btn.warning{background:var(--warning);color:#111827}
.btn.topbtn{color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35)}
.btn.topbtn.alt{background:rgba(255,255,255,.2)}
.btn.topbtn.danger{background:#d9534f;border-color:#c94743}

.toolbar{display:flex;gap:8px;flex-wrap:wrap}
.muted{color:var(--muted);font-size:14px}

.table-card{border-color:#d8e2ec}
.table-content{padding-top:0}
.table-wrap{width:100%;overflow:auto;border:1px solid #d8e2ec;border-radius:4px;background:#fff}
.mobile-price-cards{display:none}

.price-table{width:100%;border-collapse:separate;border-spacing:0;min-width:920px}
.price-table thead th{position:sticky;top:0;background:#f4f8fc;z-index:1;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#4c667d;padding:9px 8px;border-bottom:1px solid #d8e2ec;text-align:left}
.price-table td{padding:8px;border-bottom:1px solid #e8eff6;font-size:14px;color:#25384c;vertical-align:middle}
.price-table tbody tr:hover{background:#fbfdff}
.price-table tbody tr.is-changed{background:#f8fcff}

.col-check{width:70px;text-align:center}
.col-price{text-align:right;white-space:nowrap}
.old-price{color:#526980}

.cell-title{font-weight:600;color:#1f3449}
.cell-sub{font-size:12px;color:#72869a;margin-top:2px}

.price-input{width:118px;text-align:right;font-weight:600;padding-right:8px}

.check-wrap{display:inline-grid;place-items:center}
.check-wrap input{width:18px;height:18px;margin:0}

.diff-badge{display:inline-flex;align-items:center;justify-content:center;min-width:96px;padding:5px 8px;border-radius:999px;border:1px solid #d9e4ef;background:#f5f8fc;color:#3f556b;font-weight:600;font-size:12px}
.diff-badge.up{background:#ecfdf3;border-color:#c8f2d7;color:#177d45}
.diff-badge.down{background:#fff2f2;border-color:#ffd9d8;color:#b32723}
.diff-badge.same{background:#f3f4f6;border-color:#e5e7eb;color:#4b5563}

.empty{border:1px dashed #d4dee8;border-radius:4px;padding:18px;text-align:center;color:var(--muted);margin-top:10px}

.action-footer{position:sticky;bottom:0;z-index:6;display:flex;justify-content:flex-end;gap:8px;background:rgba(231,235,239,.95);backdrop-filter:blur(4px);padding:10px 0 2px}
.draft-status{font-size:12px;color:#526980;padding:0 2px 2px}

.progress{height:8px;background:#e6edf4;border-radius:2px;overflow:hidden;border:1px solid #d8e2ec}
.progress>span{display:block;height:100%;width:0;background:linear-gradient(90deg,#2f87b8,#16a34a);transition:width .15s ease}
.progress.indeterminate{position:relative;overflow:hidden}
.progress.indeterminate > span{width:38%;min-width:120px;animation:progressSlide 1s ease-in-out infinite}

@keyframes progressSlide{
  0%{transform:translateX(-120%)}
  100%{transform:translateX(320%)}
}

.global-progress{margin-top:10px;display:flex;flex-direction:column;gap:6px}

.modal{position:fixed;inset:0;background:rgba(10,19,33,.55);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:14px;z-index:30}
.modal.show{display:flex}
body.modal-open{overflow:hidden}

.preview-sheet{background:#fff;width:min(1100px,96vw);max-height:92vh;border-radius:6px;overflow:hidden;border:1px solid #d5e2ef;box-shadow:0 26px 60px rgba(2,6,23,.36);display:flex;flex-direction:column}
.modal-hero{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;padding:16px 18px;border-bottom:1px solid #d9e6f2;background:linear-gradient(135deg,#f8fbff 0%,#edf5fd 65%,#e7f1fb 100%)}
.modal-hero h3{margin:0;font-size:22px;color:#1f3246}
.modal-hero p{margin:6px 0 0;color:#61788f;font-size:13px}
.close-x{width:34px;height:34px;border-radius:6px;border:1px solid #d5e2ee;background:#fff;color:#34495e;cursor:pointer;font-size:20px;line-height:1}

.quick-modal .content{padding:12px;overflow:auto}
.preview-summary-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
.preview-summary-grid article{border:1px solid #dbe6f0;background:#f8fbff;border-radius:4px;padding:8px 10px;display:flex;flex-direction:column;gap:4px}
.preview-summary-grid span{font-size:12px;color:#5f7387}
.preview-summary-grid strong{font-size:24px;color:#1f3246;line-height:1}

.preview-warning{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:flex-start;margin-top:10px;padding:10px;border:1px solid #f2cf93;background:#fff7e9;color:#8a570d;border-radius:4px;font-size:13px}

.preview-progress{margin-top:10px;display:flex;flex-direction:column;gap:6px}
.preview-table-wrap{margin-top:10px;max-height:48vh}

.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:10px 12px;border-top:1px solid #d8e4ef}

.toast{position:fixed;bottom:20px;right:20px;background:#1f2937;color:#fff;padding:11px 14px;border-radius:2px;opacity:0;transform:translateY(8px);transition:all .25s ease;z-index:50}
.toast.show{opacity:1;transform:translateY(0)}
.undo-bar{position:fixed;left:18px;right:18px;bottom:18px;z-index:48;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid #cfe0ec;background:#ffffff;border-radius:6px;box-shadow:0 10px 30px rgba(2,6,23,.18)}
.undo-content{display:flex;align-items:center;gap:8px;color:#1f3246;font-weight:600;font-size:14px}
.undo-content i{color:#16a34a}
.undo-actions{display:flex;align-items:center;gap:8px}
#undoCountdown{font-size:12px;color:#61788f;font-weight:700}

.m-card{border:1px solid #dbe5ef;border-radius:4px;background:#fff;padding:10px;margin-bottom:8px}
.m-card.is-changed{border-color:#b9d5ea;background:#f8fcff}
.m-card-head{display:flex;align-items:flex-start;gap:10px}
.m-card-title{font-size:15px;font-weight:700;color:#1f3449;line-height:1.2}
.m-card-sub{font-size:12px;color:#6d8296;margin-top:2px}
.m-card-grid{margin-top:10px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;align-items:end}
.m-card-grid > div{display:flex;flex-direction:column;gap:4px}
.m-card-grid span{font-size:11px;color:#6d8296;text-transform:uppercase;letter-spacing:.04em}
.m-card-grid strong{font-size:14px;color:#22374b}
.m-card-grid .price-input{width:100%;text-align:left}
.m-diff.up{color:#177d45}
.m-diff.down{color:#b32723}
.m-diff.same{color:#374151}

#stDiffTotal.up,#pvTotalDiff.up{color:#177d45}
#stDiffTotal.down,#pvTotalDiff.down{color:#b32723}
#stDiffTotal.same,#pvTotalDiff.same{color:#374151}

@media (max-width:980px){
  .admin-shell{display:block}
  .sidebar{position:fixed;left:-290px;top:0;width:275px;max-height:none;height:100dvh;z-index:30;transition:left .2s ease}
  body.mobile-menu-open .sidebar{left:0}
  .sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:25}
  body.mobile-menu-open .sidebar-backdrop{display:block}
  body.mobile-menu-open{overflow:hidden}
  body.sidebar-collapsed .sidebar{width:275px;flex-basis:275px;padding-left:9px;padding-right:9px}
  body.sidebar-collapsed .menu-header,
  body.sidebar-collapsed .menu-title span,
  body.sidebar-collapsed .menu-link span{display:initial}

  .topbar{height:auto;flex-direction:column;align-items:stretch;gap:8px}
  .topbar-left{justify-content:flex-start}
  .toolbar{justify-content:flex-start}

  .container{padding:12px}
  .hero-top,
  .bulk-grid,
  .filters-grid{grid-template-columns:1fr}
  .hero-top{flex-direction:column}
  .quick-tools-head{align-items:flex-start}

  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .totals-grid{grid-template-columns:1fr}
  .preview-summary-grid{grid-template-columns:repeat(2,minmax(0,1fr))}

  .action-footer{position:static;padding-top:0}
  .action-footer .btn{flex:1;justify-content:center}
}

@media (max-width:620px){
  .topbar{padding:8px 10px}
  .topbar-left{width:100%}
  .toolbar{width:100%}
  .toolbar .btn{flex:1;min-width:120px}

  .stats-grid,
  .preview-summary-grid{grid-template-columns:1fr}

  .table-wrap{display:none}
  .mobile-price-cards{display:block}
  .m-card-grid{grid-template-columns:1fr}
  .price-table{min-width:760px}
  .modal{padding:0;align-items:stretch;justify-content:stretch}
  .preview-sheet{width:100vw;max-width:none;height:100dvh;max-height:none;border-radius:0;border:0;box-shadow:none}
  .modal-hero{position:sticky;top:0;z-index:2}
  .quick-modal .content{padding:10px}
  .modal-footer{padding:10px}
  .modal-footer .btn{flex:1;justify-content:center}
  .undo-bar{left:10px;right:10px;bottom:10px;padding:9px 10px}
  .undo-content{font-size:12px}
}

/* Sidebar brand logo should stay fully transparent on all admin pages */
.brand-media,.brand-media img,.brand-wide,.brand-square{
  background:transparent !important;
  border-color:transparent !important;
  box-shadow:none !important;
}