:root{--bg: #f3f6fb;--surface: #ffffff;--surface-2: #f7f9fc;--surface-3: #eef2f8;--border: #dde4ee;--border-strong: #c5d0de;--text: #0f1b2d;--text-2: #3c4a5e;--muted: #64748b;--primary: #15467a;--primary-2: #0f3760;--primary-soft: #e7eef7;--on-primary: #ffffff;--accent: #e2691f;--accent-soft: #fdeee4;--ok: #138a52;--ok-soft: #e3f6ec;--warn: #b26b00;--warn-soft: #fff4dc;--danger: #c62828;--danger-soft: #fde8e8;--info: #0b6aa8;--info-soft: #e3f2fc;--shadow: 0 1px 2px rgba(15,27,45,.06), 0 4px 16px rgba(15,27,45,.06);--shadow-lg: 0 12px 40px rgba(15,27,45,.18);--radius: 14px;--radius-s: 10px;--topbar-h: 60px;--menu-w: 248px;--font: "Hind Siliguri", "Noto Sans Bengali", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;color-scheme:light}:root[data-theme=dark]{--bg: #0b1220;--surface: #121b2d;--surface-2: #172238;--surface-3: #1d2a43;--border: #26344f;--border-strong: #34476a;--text: #eef3fb;--text-2: #c9d4e5;--muted: #9fb0c8;--primary: #5aa2ff;--primary-2: #7ab4ff;--primary-soft: #16294a;--on-primary: #06152b;--accent: #ff8a3d;--accent-soft: #3a2a10;--ok: #4cd394;--ok-soft: #10301f;--warn: #ffc14d;--warn-soft: #3a2c0c;--danger: #ff7a7a;--danger-soft: #3d1717;--info: #6cc3ff;--info-soft: #0f2c42;--shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.3);--shadow-lg: 0 12px 40px rgba(0,0,0,.55);color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}h1,h2,h3{margin:0 0 .5rem;line-height:1.25}h1{font-size:1.5rem;font-weight:700}h2{font-size:1.15rem;font-weight:700}h3{font-size:1rem;font-weight:600}.muted{color:var(--muted)}.small{font-size:.85rem}.right{text-align:right}.center{text-align:center}.num{font-variant-numeric:tabular-nums}.ok{color:var(--ok)}.danger{color:var(--danger)}.warn{color:var(--warn)}.app{display:flex;min-height:100%}.sidebar{width:var(--menu-w);background:var(--surface);border-right:1px solid var(--border);position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:30;transition:transform .2s}.sidebar .brand{height:var(--topbar-h);display:flex;align-items:center;gap:10px;padding:0 16px;border-bottom:1px solid var(--border)}.brand-logo{width:36px;height:36px;border-radius:9px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px}.brand b{display:block;font-size:1rem}.brand small{color:var(--muted);font-size:.72rem}.nav{padding:10px;overflow-y:auto;flex:1}.nav a{display:flex;align-items:center;gap:10px;padding:7px 12px;border-radius:var(--radius-s);color:var(--text-2);font-weight:500;margin-bottom:2px}.nav a:hover{background:var(--surface-3)}.nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}.nav .ico{width:20px;text-align:center}.main{flex:1;margin-left:var(--menu-w);min-width:0;display:flex;flex-direction:column}.topbar{height:var(--topbar-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;padding:0 16px;position:sticky;top:0;z-index:20}.topbar .title{font-weight:700;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.content{padding:20px;max-width:1280px;width:100%;margin:0 auto}.icon-btn.menu-btn,.scrim{display:none}@media(max-width:900px){.sidebar{transform:translate(-100%);box-shadow:var(--shadow-lg)}.sidebar.open{transform:none}.scrim.open{display:block;position:fixed;inset:0;background:#00000059;z-index:25}.main{margin-left:0}.icon-btn.menu-btn{display:inline-flex}.content{padding:14px}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.card+.card{margin-top:14px}.grid>.card+.card,.row>.card+.card{margin-top:0}.grid{display:grid;gap:14px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}.stack>*+*{margin-top:12px}.spacer{flex:1}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);padding:9px 14px;border-radius:var(--radius-s);font:inherit;font-weight:600;cursor:pointer;min-height:40px;white-space:nowrap}.btn:hover{background:var(--surface-3)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}.btn-primary:hover{background:var(--primary-2)}.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}.btn-ok{background:var(--ok);border-color:var(--ok);color:#fff}.btn-danger{background:var(--danger-soft);border-color:transparent;color:var(--danger)}.btn-ghost{background:transparent;border-color:transparent}.btn-sm{padding:5px 10px;min-height:32px;font-size:.85rem}.btn-lg{padding:13px 18px;font-size:1.05rem;min-height:52px}.btn-block{width:100%}.icon-btn{background:transparent;border:0;color:var(--text);width:40px;height:40px;border-radius:10px;cursor:pointer;font:inherit;font-weight:700;display:inline-flex;align-items:center;justify-content:center}.icon-btn:hover{background:var(--surface-3)}label.f{display:block}label.f>span{display:block;font-size:.82rem;font-weight:600;color:var(--text-2);margin-bottom:4px}.input,select.input,textarea.input{width:100%;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:var(--radius-s);padding:9px 12px;font:inherit;min-height:40px}.input:focus{outline:2px solid var(--primary-soft);border-color:var(--primary)}.input-lg{font-size:1.1rem;min-height:50px}.check{display:flex;align-items:center;gap:8px;cursor:pointer}.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);cursor:pointer;font-size:.85rem;font-weight:500;user-select:none}.chip.on{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:.75rem;font-weight:600;background:var(--surface-3);color:var(--text-2)}.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.danger{background:var(--danger-soft);color:var(--danger)}.badge.warn{background:var(--warn-soft);color:var(--warn)}.badge.info{background:var(--info-soft);color:var(--info)}.table-wrap{overflow-x:auto}table.t{width:100%;border-collapse:collapse}table.t th,table.t td{padding:9px 10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}table.t th{font-size:.78rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);font-weight:600;background:var(--surface-2)}table.t tr.click{cursor:pointer}table.t tr.click:hover td{background:var(--surface-2)}.stat{padding:14px 16px}.stat .k{font-size:.8rem;color:var(--muted);font-weight:600}.stat .v{font-size:1.45rem;font-weight:700;margin-top:2px}.alert{padding:10px 14px;border-radius:var(--radius-s);background:var(--info-soft);color:var(--info);font-weight:500}.alert.danger{background:var(--danger-soft);color:var(--danger)}.alert.ok{background:var(--ok-soft);color:var(--ok)}.alert.warn{background:var(--warn-soft);color:var(--warn)}.modal-bg{position:fixed;inset:0;background:#080f1e80;z-index:50;display:flex;align-items:center;justify-content:center;padding:14px}.modal{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:560px;max-height:92vh;overflow:auto}.modal.wide{max-width:860px}.modal-h{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--surface);z-index:1}.modal-b{padding:16px}.toast{position:fixed;bottom:18px;left:50%;transform:translate(-50%);background:var(--text);color:var(--bg);padding:10px 18px;border-radius:999px;z-index:60;font-weight:600;box-shadow:var(--shadow-lg)}.auth-wrap{min-height:100%;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,var(--primary) 0%,var(--primary-2) 45%,var(--bg) 45%)}.auth-card{width:100%;max-width:420px}.pos{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:14px;align-items:start}@media(max-width:1000px){.pos{grid-template-columns:1fr}}.cart-line{display:grid;grid-template-columns:minmax(0,1fr) auto auto auto;gap:8px;align-items:center;padding:10px 0;border-bottom:1px solid var(--border)}@media(max-width:560px){.cart-line{grid-template-columns:minmax(0,1fr) auto auto}.cart-line>div:first-child{grid-column:1 / -1}}.disc{display:inline-flex;align-items:center;gap:2px;vertical-align:middle}.disc .input{width:62px;min-height:28px;padding:2px 6px}.disc i{font-style:normal;color:var(--muted);margin-right:6px}.qty{display:inline-flex;align-items:center;border:1px solid var(--border-strong);border-radius:10px;overflow:hidden}.qty button{width:32px;height:34px;border:0;background:var(--surface-2);color:var(--text);font-size:1.1rem;cursor:pointer}.qty input{width:52px;text-align:center;border:0;background:var(--surface);color:var(--text);font:inherit;height:34px}.total-big{font-size:2rem;font-weight:800;color:var(--primary)}.search-results{position:absolute;left:0;right:0;top:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-s);box-shadow:var(--shadow-lg);z-index:15;max-height:320px;overflow:auto}.search-results button{display:block;width:100%;text-align:left;padding:10px 12px;border:0;background:none;color:var(--text);font:inherit;cursor:pointer;border-bottom:1px solid var(--border)}.search-results button:hover,.search-results button.sel{background:var(--primary-soft)}.scanner-video{width:100%;border-radius:var(--radius-s);background:#000;aspect-ratio:4/3;object-fit:cover}.held{display:flex;gap:6px;flex-wrap:wrap}.matrix td input{min-width:70px}.bars{display:flex;align-items:flex-end;gap:4px;height:160px;padding-top:10px}.bars div{flex:1;background:var(--primary);border-radius:4px 4px 0 0;min-height:2px;position:relative}.bars div:hover:after{content:attr(data-tip);position:absolute;bottom:100%;left:50%;transform:translate(-50%);background:var(--text);color:var(--bg);font-size:.75rem;padding:2px 6px;border-radius:6px;white-space:nowrap}@media print{body *{visibility:hidden}}.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.92rem}.crumbs span{color:var(--muted)}.folder-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}.folder{text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;cursor:pointer;font:inherit;color:inherit;transition:border-color .15s,transform .15s}.folder:hover{border-color:var(--primary);transform:translateY(-1px)}.folder-ico{font-size:1.5rem}.folder-name{font-weight:700;font-size:1.05rem;margin:4px 0 2px}table.t tr.group-row td{background:var(--primary-soft);color:var(--text)}.nav-group+.nav-group{margin-top:8px}.nav-head{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:6px 12px 4px}.side-foot{padding:10px 12px;border-top:1px solid var(--border)}.ellipsis{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat{display:flex;flex-direction:column;gap:10px;min-height:460px}.chat-log{flex:1;overflow-y:auto;max-height:60vh;display:flex;flex-direction:column;gap:8px;padding-right:4px}.bubble{max-width:88%;padding:9px 12px;border-radius:14px;line-height:1.45;white-space:pre-wrap}.bubble.bot{background:var(--surface-3);align-self:flex-start;border-bottom-left-radius:4px}.bubble.me{background:var(--primary);color:var(--on-primary);align-self:flex-end;border-bottom-right-radius:4px}.gate{max-width:1000px;margin:0 auto;padding:20px}