:root{--bg:#f5f6f8;--card:#fff;--ink:#1c2330;--muted:#6b7280;--line:#e3e6eb;--accent:#1f5eff;--accent-ink:#fff;--ok:#167d4a;--warn:#b45309;--bad:#b91c1c;--soft:#eef2ff;--radius:10px}
@media (prefers-color-scheme:dark){:root{--bg:#121519;--card:#1b1f26;--ink:#e6e9ef;--muted:#98a0ad;--line:#2b313b;--accent:#6c95ff;--accent-ink:#0b0f16;--soft:#232a3a}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
header.top{display:flex;align-items:center;gap:20px;padding:0 20px;height:52px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
header .brand{font-weight:700;font-size:16px;color:var(--ink)}
header nav{display:flex;gap:4px;flex:1}
header nav a{padding:6px 12px;border-radius:8px;color:var(--muted);font-weight:500}
header nav a.active,header nav a:hover{background:var(--soft);color:var(--ink);text-decoration:none}
form.logout{margin:0}
main{max-width:1100px;margin:0 auto;padding:22px 16px 60px}main.wide{max-width:1400px}main.narrow{max-width:420px;margin-top:10vh}
h1{font-size:22px;margin:0 0 16px}h2{font-size:16px;margin:24px 0 10px}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}.grow{flex:1}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.tile .k{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.tile .v{font-size:24px;font-weight:700;margin-top:4px}.tile .s{font-size:12px;color:var(--muted);margin-top:2px}
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
th,td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;background:var(--bg);white-space:nowrap}
th a{color:inherit}tr:last-child td{border-bottom:0}
tbody tr:hover td{background:var(--soft)}
td.name{min-width:180px}
td.num,th.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
td.muted,.muted{color:var(--muted)}.small{font-size:12px}.nowrap{white-space:nowrap}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.badge.stock{background:#dcfce7;color:#166534}.badge.reserved{background:#fef3c7;color:#92400e}.badge.sold{background:#dbeafe;color:#1e3a8a}.badge.scrapped{background:#f3f4f6;color:#4b5563}
@media (prefers-color-scheme:dark){.badge.stock{background:#14532d;color:#bbf7d0}.badge.reserved{background:#78350f;color:#fde68a}.badge.sold{background:#1e3a8a;color:#bfdbfe}.badge.scrapped{background:#374151;color:#d1d5db}}
input[type=text],input[type=number],input[type=date],input[type=password],input[type=search],select,textarea{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);font:inherit}
textarea{min-height:70px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;font-weight:600}
.field{margin-bottom:12px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px 16px}
button,.btn{display:inline-block;padding:7px 14px;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-weight:600;cursor:pointer;white-space:nowrap}
button:hover,.btn:hover{background:var(--soft);text-decoration:none}
.btn.primary,button.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.btn.primary:hover,button.primary:hover{filter:brightness(1.08)}
.btn.danger,button.danger{color:var(--bad);border-color:var(--bad)}button.sm,.btn.sm{padding:3px 9px;font-size:12px}
button.link{background:none;border:0;color:var(--accent);padding:0;font-weight:500}button.link:hover{text-decoration:underline}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;border:1px solid}
.flash.ok{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}.flash.err{background:#fef2f2;border-color:#fecaca;color:#991b1b}.flash.info{background:var(--soft);border-color:var(--line)}
@media (prefers-color-scheme:dark){.flash.ok{background:#064e3b;border-color:#065f46;color:#d1fae5}.flash.err{background:#7f1d1d;border-color:#991b1b;color:#fee2e2}}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:end;margin-bottom:12px}.filters .field{margin:0;min-width:140px}.filters .field.q{flex:1;min-width:200px}
.bulkbar{position:sticky;bottom:12px;display:none;gap:8px;align-items:center;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:10px;margin-top:12px;box-shadow:0 6px 24px rgba(0,0,0,.25)}
.bulkbar.on{display:flex;flex-wrap:wrap}.bulkbar button,.bulkbar select{background:transparent;color:inherit;border-color:rgba(255,255,255,.35)}.bulkbar select{width:auto}
.bulkbar button:hover{background:rgba(255,255,255,.12)}
dialog{border:1px solid var(--line);border-radius:12px;padding:20px;background:var(--card);color:var(--ink);width:min(520px,94vw);box-shadow:0 20px 60px rgba(0,0,0,.3)}
dialog::backdrop{background:rgba(0,0,0,.4)}dialog h2{margin-top:0}
.actions{display:flex;gap:8px;justify-content:flex-end;margin-top:14px}
.pager{display:flex;gap:8px;align-items:center;margin-top:12px;color:var(--muted)}
.kv{display:grid;grid-template-columns:160px 1fr;gap:6px 12px}.kv dt{color:var(--muted)}.kv dd{margin:0}
.hist li{margin-bottom:6px}.hist time{color:var(--muted);font-size:12px;margin-right:8px}
.preview-sheet{margin-bottom:20px}.preview-sheet .head{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
.preview-sheet .head select,.preview-sheet .head input{width:auto;min-width:180px}.warn{color:var(--warn)}
.scroll{overflow:auto;max-height:360px;border-radius:var(--radius)}
.upload{border:2px dashed var(--line);border-radius:var(--radius);padding:30px;text-align:center}
.upload input[type=file]{margin:10px auto;display:block}
tr.clickable{cursor:pointer}
.chip{display:inline-block;padding:2px 8px;border-radius:6px;background:var(--soft);font-size:12px;margin:2px 4px 2px 0}

/* ---------- mobile ---------- */
.menu-btn{display:none;border:0;background:none;font-size:22px;padding:4px 8px;line-height:1}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-bottom:12px}
.table-wrap table{margin-bottom:0}
@media (max-width:720px){
  html,body{font-size:15px}
  header.top{gap:10px;padding:0 12px;height:50px;flex-wrap:nowrap}
  header .brand{flex:1;font-size:15px}
  .menu-btn{display:block}
  header nav{display:none;position:absolute;top:50px;left:0;right:0;background:var(--card);border-bottom:1px solid var(--line);flex-direction:column;padding:8px;box-shadow:0 10px 30px rgba(0,0,0,.15);z-index:6}
  header.open nav{display:flex}
  header nav a{padding:11px 12px;font-size:16px}
  header .small{display:none}
  main{padding:14px 12px 90px}
  h1{font-size:20px}
  .row.between{flex-direction:column;align-items:stretch}
  .row.between>.row{flex-wrap:wrap}
  .row.between h1{margin-bottom:6px}
  .tiles{grid-template-columns:repeat(2,1fr);gap:8px}
  .tile{padding:10px 12px}.tile .v{font-size:19px}
  input[type=text],input[type=number],input[type=date],input[type=month],input[type=password],input[type=search],select,textarea{font-size:16px;padding:9px 10px}
  button,.btn{padding:9px 14px;min-height:40px}button.sm,.btn.sm{min-height:34px;padding:6px 10px}
  .filters{gap:6px}.filters .field{min-width:calc(50% - 3px)}.filters .field.q{min-width:100%}
  .grid{grid-template-columns:1fr}
  .kv{grid-template-columns:1fr}
  td.hide-sm,th.hide-sm{display:none}
  .bulkbar{left:8px;right:8px;bottom:8px;padding:8px 10px}
  /* tables as cards */
  table.cards thead,table.cards tr.hdr{display:none}
  table.cards,table.cards tbody{display:block}
  table.cards tr{display:block;padding:10px 12px;border-bottom:1px solid var(--line)}
  table.cards tr:last-child{border-bottom:0}
  table.cards td{display:flex;justify-content:space-between;align-items:baseline;gap:12px;border:0;padding:2px 0;text-align:left}
  table.cards td.num{text-align:right}
  table.cards td::before{content:attr(data-l);color:var(--muted);font-size:12px;flex:0 0 38%;text-align:left}
  table.cards td:empty,table.cards td.empty{display:none}
  table.cards td.title{display:block;font-size:15px;padding-bottom:4px}
  table.cards td.title::before{display:none}
  table.cards td.pick-cell{display:block;float:right}
  table.cards td.pick-cell::before{display:none}
  table.cards td.actions-cell{justify-content:flex-end;padding-top:6px}
  table.cards td.actions-cell::before{display:none}
  tbody tr:hover td{background:none}
}