:root {
  --bg: #f4f6f8; --card: #ffffff; --text: #16212b; --muted: #6b7a88; --line: #e1e6eb;
  --accent: #00a86b; --accent-dark: #008556; --accent-soft: #e3f7ee; --danger: #d6453d; --danger-soft: #fdeceb; --warn: #e3a008; --warn-soft: #fff6dc; --info: #2f6fed; --info-soft: #e7eefc;
  --side: #101820; --side-text: #c7d1da; --side-active: #00c878;
  --radius: 12px; --shadow: 0 1px 3px rgba(16,24,32,.08), 0 4px 14px rgba(16,24,32,.05);
  --safe-b: env(safe-area-inset-bottom, 0px); --safe-t: env(safe-area-inset-top, 0px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #0d1218; --card: #161d25; --text: #e6ecf1; --muted: #8d9aa7; --line: #263039; --accent-soft: #10311f; --danger-soft: #3a1a18; --warn-soft: #3a2f0f; --info-soft: #14233f; --side: #0a0f14; }
}
:root[data-theme="dark"] { --bg: #0d1218; --card: #161d25; --text: #e6ecf1; --muted: #8d9aa7; --line: #263039; --accent-soft: #10311f; --danger-soft: #3a1a18; --warn-soft: #3a2f0f; --info-soft: #14233f; --side: #0a0f14; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; -webkit-text-size-adjust: 100%; }
body { min-height: 100vh; }
a { color: var(--info); text-decoration: none; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
.right { text-align: right; }
.center { text-align: center; }
.nowrap { white-space: nowrap; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grow { flex: 1 1 auto; min-width: 0; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.mt { margin-top: 14px; } .mb { margin-bottom: 14px; }
h1 { font-size: 22px; margin: 0 0 12px; font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: 16px; margin: 0 0 8px; font-weight: 650; }
h3 { font-size: 14px; margin: 0 0 6px; font-weight: 650; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

/* Login */
.login { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: linear-gradient(160deg, #101820, #1a2a36); padding: 20px; }
.login-card { background: var(--card); color: var(--text); padding: 28px 24px; border-radius: 16px; width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 12px; box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.logo { display: flex; align-items: center; gap: 10px; }
.logo b { display: block; font-size: 17px; }
.logo small { display: block; color: var(--muted); font-size: 12px; }
.logo-dot { display: inline-flex; width: 38px; height: 38px; border-radius: 10px; background: #00c878; color: #101820; font-weight: 800; align-items: center; justify-content: center; font-size: 20px; flex: 0 0 auto; }

/* Layout */
.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar { background: var(--side); color: var(--side-text); padding: 18px 14px; display: flex; flex-direction: column; gap: 16px; position: sticky; top: 0; height: 100vh; }
.sidebar .logo b { color: #fff; } .sidebar .logo small { color: var(--side-text); }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.sidebar nav a { color: var(--side-text); padding: 9px 12px; border-radius: 9px; display: flex; gap: 10px; align-items: center; font-weight: 500; }
.sidebar nav a.active, .sidebar nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
.sidebar nav a.active { color: var(--side-active); }
.sidebar nav .sep { height: 1px; background: rgba(255,255,255,.08); margin: 8px 4px; }
.sidebar-foot { margin-top: auto; display: flex; justify-content: space-between; align-items: center; }
.main { padding: 22px 26px 40px; max-width: 1200px; width: 100%; }
.tabbar { display: none; }
.ico { width: 20px; text-align: center; font-size: 16px; }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .main { padding: calc(14px + var(--safe-t)) 14px calc(84px + var(--safe-b)); }
  .tabbar { display: grid; grid-template-columns: repeat(5, 1fr); position: fixed; bottom: 0; left: 0; right: 0; background: var(--card); border-top: 1px solid var(--line); padding: 6px 4px calc(6px + var(--safe-b)); z-index: 30; }
  .tabbar a { display: flex; flex-direction: column; align-items: center; gap: 2px; color: var(--muted); font-size: 11px; padding: 4px 2px; border-radius: 8px; }
  .tabbar a .ico { font-size: 21px; }
  .tabbar a.active { color: var(--accent); }
  h1 { font-size: 20px; }
}

/* Cards / Tiles */
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.card.pad0 { padding: 0; overflow: hidden; }
.grid { display: grid; gap: 12px; }
.grid.k2 { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.grid.k3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.k4 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.kpi { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 16px; cursor: pointer; border-left: 4px solid var(--accent); }
.kpi.warn { border-left-color: var(--warn); } .kpi.danger { border-left-color: var(--danger); } .kpi.info { border-left-color: var(--info); } .kpi.plain { border-left-color: var(--line); }
.kpi .v { font-size: 26px; font-weight: 750; letter-spacing: -.02em; line-height: 1.1; }
.kpi .l { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.tile { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 12px; text-align: center; cursor: pointer; font-weight: 600; display: flex; flex-direction: column; gap: 6px; align-items: center; border: 2px solid transparent; }
.tile:hover { border-color: var(--accent); }
.tile .ico { font-size: 28px; }
.tile.big { padding: 26px 12px; }

/* Buttons */
.btn { appearance: none; border: 1px solid var(--line); background: var(--card); color: var(--text); padding: 9px 14px; border-radius: 10px; font-weight: 600; cursor: pointer; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; justify-content: center; min-height: 40px; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; } .btn.primary:hover { background: var(--accent-dark); }
.btn.danger { background: var(--danger-soft); border-color: transparent; color: var(--danger); }
.btn.ghost { background: transparent; border-color: rgba(255,255,255,.2); color: inherit; }
.btn.small { padding: 5px 10px; min-height: 32px; font-size: 13px; border-radius: 8px; }
.btn.big { padding: 13px 18px; font-size: 16px; min-height: 50px; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.icon { padding: 6px 9px; min-height: 36px; }

/* Forms */
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); font-weight: 600; }
input, select, textarea { font: inherit; color: var(--text); background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; min-height: 42px; width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
input[type=checkbox] { width: auto; min-height: 0; transform: scale(1.2); margin: 6px 4px; }
textarea { min-height: 80px; resize: vertical; }
.form { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.form .full { grid-column: 1 / -1; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.qty button { border: 0; background: var(--bg); width: 40px; height: 40px; font-size: 20px; cursor: pointer; color: var(--text); }
.qty input { border: 0; width: 60px; text-align: center; border-radius: 0; min-height: 40px; padding: 4px; font-weight: 700; }
.search { position: relative; }
.search input { padding-left: 36px; }
.search:before { content: "\1F50D"; position: absolute; left: 11px; top: 11px; font-size: 15px; opacity: .6; }
.error { background: var(--danger-soft); color: var(--danger); padding: 9px 12px; border-radius: 9px; font-size: 13.5px; }
.note { background: var(--info-soft); color: var(--text); padding: 9px 12px; border-radius: 9px; font-size: 13.5px; }
.warnbox { background: var(--warn-soft); padding: 9px 12px; border-radius: 9px; font-size: 13.5px; }
.okbox { background: var(--accent-soft); padding: 9px 12px; border-radius: 9px; font-size: 13.5px; }

/* Tables / lists */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; font-weight: 650; white-space: nowrap; }
tr.click { cursor: pointer; } tr.click:hover td { background: var(--bg); }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.list { display: flex; flex-direction: column; }
.item { display: flex; gap: 12px; align-items: center; padding: 11px 14px; border-bottom: 1px solid var(--line); cursor: pointer; }
.item:last-child { border-bottom: 0; }
.item:hover { background: var(--bg); }
.thumb { width: 44px; height: 44px; border-radius: 8px; object-fit: cover; background: var(--bg); flex: 0 0 auto; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.row.nowrap { flex-wrap: nowrap; }
.item .t { font-weight: 600; } .item .s { color: var(--muted); font-size: 12.5px; }
.item .num { font-weight: 750; font-size: 17px; min-width: 44px; text-align: right; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11.5px; font-weight: 650; background: var(--bg); color: var(--muted); white-space: nowrap; }
.badge.ok { background: var(--accent-soft); color: var(--accent-dark); } .badge.warn { background: var(--warn-soft); color: #8a5a00; } .badge.danger { background: var(--danger-soft); color: var(--danger); } .badge.info { background: var(--info-soft); color: var(--info); }
.pill-row { display: flex; gap: 6px; flex-wrap: wrap; }
.pill { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); cursor: pointer; font-size: 13px; font-weight: 600; }
.pill.active { background: var(--text); color: var(--card); border-color: var(--text); }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 12px; overflow-x: auto; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 9px 12px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; white-space: nowrap; }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }
.bar { height: 6px; background: var(--bg); border-radius: 3px; overflow: hidden; } .bar > i { display: block; height: 100%; background: var(--accent); }
.chart { display: flex; align-items: flex-end; gap: 4px; height: 90px; }
.chart .b { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; gap: 1px; height: 100%; }
.chart .b i { display: block; border-radius: 2px 2px 0 0; } .chart .b i.z { background: var(--accent); } .chart .b i.v { background: var(--info); } .chart .b i.e { background: var(--warn); }

/* Scanner */
.scanner { position: relative; background: #000; border-radius: var(--radius); overflow: hidden; min-height: 240px; }
.scanner video { width: 100%; display: block; }
#reader { width: 100%; }
#reader video { border-radius: var(--radius); }
.scan-input { display: flex; gap: 8px; }
.scan-input input { font-size: 17px; font-family: ui-monospace, Menlo, Consolas, monospace; }

/* Toast / Modal */
.toast { position: fixed; left: 50%; bottom: calc(90px + var(--safe-b)); transform: translateX(-50%); background: #101820; color: #fff; padding: 11px 16px; border-radius: 10px; z-index: 100; max-width: 90vw; box-shadow: 0 8px 30px rgba(0,0,0,.3); font-weight: 600; }
.toast.err { background: var(--danger); } .toast.ok { background: var(--accent-dark); }
.modal { position: fixed; inset: 0; background: rgba(10,15,20,.55); z-index: 50; display: flex; align-items: flex-end; justify-content: center; padding: 0; }
.modal-card { background: var(--card); width: 100%; max-width: 560px; border-radius: 18px 18px 0 0; padding: 18px 18px calc(18px + var(--safe-b)); max-height: 92vh; overflow-y: auto; display: flex; flex-direction: column; gap: 12px; }
@media (min-width: 861px) { .modal { align-items: center; padding: 20px; } .modal-card { border-radius: 16px; } }
.modal-card h2 { margin: 0; }
.upload { border: 2px dashed var(--line); border-radius: 12px; padding: 16px; text-align: center; color: var(--muted); cursor: pointer; }
.upload:hover { border-color: var(--accent); color: var(--text); }
.thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
.thumbs a { display: flex; flex-direction: column; align-items: center; gap: 4px; width: 92px; font-size: 11px; color: var(--muted); text-align: center; }
.thumbs img, .thumbs .doc { width: 92px; height: 92px; object-fit: cover; border-radius: 8px; background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 30px; }
.sticky-bottom { position: sticky; bottom: calc(76px + var(--safe-b)); background: var(--card); padding: 10px 12px; border-radius: var(--radius); box-shadow: 0 -4px 20px rgba(0,0,0,.08); display: flex; gap: 10px; align-items: center; z-index: 5; }
@media (min-width: 861px) { .sticky-bottom { bottom: 10px; } }
.cart-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.cart-row .meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 6px; }
.cart-row .meta input { min-height: 36px; padding: 6px 8px; font-size: 13px; width: 120px; }
.img-prev { max-width: 100%; max-height: 220px; border-radius: 10px; object-fit: contain; background: var(--bg); }
.spinner { display: inline-block; width: 18px; height: 18px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }
.hint { font-size: 12.5px; color: var(--muted); }
@media print { .sidebar, .tabbar, .btn, .sticky-bottom { display: none !important; } .main { padding: 0; } .card { box-shadow: none; } }