:root {
  --bg: #f4f5f7; --card: #fff; --text: #1d2330; --muted: #6b7280; --line: #e3e6eb;
  --accent: #2563eb; --accent-d: #1d4ed8; --ok: #15803d; --ok-bg: #e8f6ec;
  --err: #b91c1c; --err-bg: #fdecec; --warn-bg: #fff6e0;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 60px; }
h1 { font-size: 24px; margin: 4px 0 16px; }
h2 { font-size: 18px; margin: 24px 0 10px; }

.top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px; padding: 10px 16px; background: #1f2937; color: #fff; }
.top a { color: #e5e7eb; }
.top .brand { font-weight: 700; color: #fff; font-size: 17px; }
.top nav { display: flex; flex-wrap: wrap; gap: 4px; flex: 1; }
.top nav a { padding: 6px 10px; border-radius: 6px; }
.top nav a:hover { background: #374151; text-decoration: none; }
.top .nav-sale { background: var(--ok); color: #fff; font-weight: 600; }
.top .nav-sale:hover { background: #166534 !important; }
.top .who { font-size: 14px; color: #9ca3af; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 2px; }
.stat.good .value { color: var(--ok); }
.stat.bad .value { color: var(--err); }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; background: var(--warn-bg); border: 1px solid #f3d58a; }
.flash.ok { background: var(--ok-bg); border-color: #a7dbb5; }
.flash.error { background: var(--err-bg); border-color: #f2b8b8; color: var(--err); }

label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
input, select, textarea { font: inherit; color: var(--text); padding: 8px 10px; border: 1px solid #cfd4dc; border-radius: 7px; background: #fff; min-width: 0; }
input:focus, select:focus { outline: 2px solid #bfd3fb; border-color: var(--accent); }
input[type=checkbox] { width: 18px; height: 18px; }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); font-size: 15px; }
.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; margin-bottom: 14px; }
.row .grow { flex: 1; min-width: 200px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-bottom: 16px; }

.btn, button { font: inherit; display: inline-block; padding: 8px 14px; border-radius: 7px; border: 1px solid #cfd4dc; background: #fff; color: var(--text); cursor: pointer; white-space: nowrap; }
.btn:hover, button:hover { background: #f0f2f5; text-decoration: none; }
.btn.primary, button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover, button.primary:hover { background: var(--accent-d); }
.btn.green { background: var(--ok); border-color: var(--ok); color: #fff; }
button.danger { color: var(--err); border-color: #f2b8b8; }
button.big, .btn.big { padding: 12px 26px; font-size: 17px; font-weight: 600; }
button:disabled { opacity: .6; cursor: default; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 16px; }
.actions form { margin: 0; }

.tbl-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; }
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
.tbl th { background: #f8f9fb; font-size: 13px; color: var(--muted); font-weight: 600; white-space: nowrap; }
.tbl tfoot td { font-weight: 700; background: #f8f9fb; border-bottom: none; }
.tbl tr.off td { color: #9ca3af; }
.tbl tr.canceled td { color: #9ca3af; text-decoration: line-through; }
.tbl tr.link { cursor: pointer; }
.tbl tr.link:hover td { background: #f5f8ff; }
.r { text-align: right !important; white-space: nowrap; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.neg { color: var(--err); font-weight: 600; }
.lowcell { background: #fff1f1; color: var(--err); font-weight: 600; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; background: #eef2f7; color: #374151; }
.badge.sale { background: var(--ok-bg); color: var(--ok); }
.badge.in { background: #e6efff; color: var(--accent-d); }
.badge.move { background: #f1e9ff; color: #6d28d9; }
.badge.writeoff { background: var(--err-bg); color: var(--err); }

/* форма документа */
.search-box { position: relative; margin-bottom: 12px; }
.search-box input { width: 100%; font-size: 17px; padding: 12px 14px; }
.suggest { position: absolute; z-index: 10; left: 0; right: 0; top: 100%; background: #fff; border: 1px solid #cfd4dc; border-radius: 0 0 8px 8px; box-shadow: 0 8px 20px rgba(0,0,0,.1); max-height: 360px; overflow-y: auto; display: none; }
.suggest div { padding: 9px 14px; cursor: pointer; display: flex; justify-content: space-between; gap: 12px; }
.suggest div.on, .suggest div:hover { background: #eef4ff; }
.suggest .empty { color: var(--muted); cursor: default; }
.items input.qty { width: 90px; text-align: right; }
.items input.price { width: 110px; text-align: right; }
.items button.x { border: none; color: #9ca3af; padding: 4px 8px; }
.items button.x:hover { color: var(--err); background: none; }
.items .total { font-size: 20px; }
.pay { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-end; margin: 16px 0; }
.pay .change { font-size: 20px; padding-bottom: 6px; }

/* вход */
.auth { max-width: 380px; margin: 60px auto; }
.auth form { display: flex; flex-direction: column; gap: 12px; }
.auth h1 { text-align: center; }

/* печать */
.print-head { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.sign { margin-top: 40px; display: flex; gap: 60px; flex-wrap: wrap; }
@media print {
  .no-print, .top { display: none !important; }
  body { background: #fff; font-size: 12pt; }
  main { padding: 0; max-width: none; }
  .card, .tbl-wrap { border: none; padding: 0; }
  .tbl th, .tbl td { border: 1px solid #999; padding: 4px 6px; }
  .tbl th { background: #fff; color: #000; }
}
@media (max-width: 640px) {
  h1 { font-size: 20px; }
  .items input.qty { width: 64px; }
  .items input.price { width: 80px; }
  .tbl th, .tbl td { padding: 6px; }
}

/* меню «Ещё» */
.top details.more { position: relative; }
.top details.more summary { list-style: none; cursor: pointer; padding: 6px 10px; border-radius: 6px; color: #e5e7eb; }
.top details.more summary::-webkit-details-marker { display: none; }
.top details.more summary:hover, .top details.more[open] summary { background: #374151; }
.top details.more .menu { position: absolute; z-index: 20; top: 100%; left: 0; margin-top: 4px; min-width: 220px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.15); padding: 6px; }
.top details.more .menu a { display: block; color: var(--text); padding: 8px 10px; border-radius: 6px; }
.top details.more .menu a:hover { background: #f0f2f5; text-decoration: none; }
.top details.more .menu hr { border: none; border-top: 1px solid var(--line); margin: 4px 0; }

.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.kv { width: 100%; border-collapse: collapse; }
.kv td { padding: 5px 0; border-bottom: 1px dashed var(--line); }
.kv td:last-child { text-align: right; white-space: nowrap; }
.kv tr.big td { font-size: 18px; font-weight: 700; border-bottom: none; padding-top: 10px; }
.pos { color: var(--ok); font-weight: 600; }
.badge.return { background: #fff1e6; color: #c2410c; }
.badge.inventory { background: #e0f2fe; color: #0369a1; }
.badge.debt { background: #fef3c7; color: #92400e; }
.seg { display: inline-flex; border: 1px solid #cfd4dc; border-radius: 8px; overflow: hidden; }
.seg label { flex-direction: row; align-items: center; gap: 6px; padding: 8px 14px; cursor: pointer; color: var(--text); font-size: 15px; }
.seg label + label { border-left: 1px solid #cfd4dc; }
.seg input { margin: 0; }
.seg label:has(input:checked) { background: #eef4ff; color: var(--accent-d); font-weight: 600; }
tr.hl td { background: #fffbe6 !important; }
tr.diff-minus td.diffc { color: var(--err); font-weight: 600; }
tr.diff-plus td.diffc { color: var(--ok); font-weight: 600; }

/* шапка на телефоне: название и «выйти» сверху, меню строками ниже */
@media (max-width: 760px) {
  .top { gap: 6px 12px; padding: 8px 10px; }
  .top .who { margin-left: auto; font-size: 13px; }
  .top nav { order: 3; flex: 0 0 100%; gap: 2px; }
  .top nav a, .top details.more summary { padding: 6px 8px; font-size: 14px; }
  .top details.more .menu { position: fixed; left: 10px; right: 10px; top: auto; }
}

/* подсветка открытого раздела в меню */
.top nav a.on, .top details.more.on summary { background: #3b4a61; color: #fff; font-weight: 600; box-shadow: inset 0 -3px 0 #60a5fa; }
.top .nav-sale.on { box-shadow: inset 0 -3px 0 #bbf7d0, 0 0 0 2px #fff; }
.top details.more .menu a.on { background: #eef4ff; color: var(--accent-d); font-weight: 600; }

/* сканер камерой */
.cam-btn { font-size: 20px; padding: 6px 12px; line-height: 1; flex: none; }
.search-box.with-cam { display: flex; gap: 8px; }
.search-box.with-cam input { flex: 1; }
.search-box.with-cam .cam-btn { padding: 0 16px; font-size: 22px; }
.input-cam { display: flex; gap: 6px; }
.input-cam input { flex: 1; }
.scan-overlay { position: fixed; inset: 0; z-index: 1000; background: #000; color: #fff; display: none; flex-direction: column; }
.scan-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; }
.scan-close { background: none; border: none; color: #fff; font-size: 26px; padding: 0 6px; }
.scan-close:hover { background: none; }
.scan-box { flex: 1; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.scan-box video { width: 100% !important; height: 100% !important; object-fit: cover; }
.scan-status { padding: 14px 16px; font-size: 17px; text-align: center; min-height: 56px; background: #111; }
.scan-status.ok { background: #14532d; }
.scan-status.err { background: #7f1d1d; }
.scan-done { margin: 0; border-radius: 0; border: none; background: #2563eb; color: #fff; font-size: 18px; font-weight: 600; padding: 16px; }
.scan-done:hover { background: #1d4ed8; }