:root{
  --primary:#1a5fb4; --primary-dark:#14427e; --primary-light:#e7eefc;
  --accent:#16a085; --danger:#d64541; --warn:#f39c12;
  --bg:#f3f5f9; --card:#fff; --text:#1c2333; --muted:#6b7280;
  --border:#e5e8ef; --shadow:0 2px 10px rgba(28,35,51,.08);
  --radius:14px; --radius-sm:9px;
  --sidebar-w:250px; --topbar-h:56px; --bottomnav-h:60px;
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px}
.hidden{display:none!important}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#14427e,#1a5fb4 55%,#16a085);padding:20px}
.login-card{background:#fff;padding:32px 26px;border-radius:20px;width:100%;max-width:380px;box-shadow:0 20px 50px rgba(0,0,0,.25);text-align:center}
.login-brand{font-size:26px;font-weight:800;color:var(--primary)}
.login-sub{color:var(--muted);margin:6px 0 20px}
.login-card input{display:block;width:100%;margin:10px 0;padding:14px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#f8fafc}
.login-card input:focus{outline:2px solid var(--primary-light);border-color:var(--primary)}
.login-hint{margin-top:14px;font-size:12px;color:var(--muted)}
.err-msg{color:var(--danger);font-size:13px;min-height:18px;margin-top:8px}

/* ---------- Layout ---------- */
.topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-h);background:var(--primary);color:#fff;display:flex;align-items:center;padding:0 10px;z-index:50;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.topbar-title{flex:1;font-weight:700;font-size:16px;padding:0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon-btn{background:transparent;border:none;color:inherit;font-size:20px;padding:8px 10px;border-radius:8px}
.icon-btn:active{background:rgba(255,255,255,.15)}
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:#14213d;color:#dfe7f5;z-index:60;transform:translateX(-105%);transition:transform .25s;overflow-y:auto;padding-bottom:20px}
.sidebar.open{transform:translateX(0)}
.sidebar-brand{padding:20px 18px;font-size:19px;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
#nav{padding:10px 8px}
#nav .nav-group{font-size:11px;text-transform:uppercase;color:#7c8aa8;padding:12px 12px 4px;letter-spacing:.5px}
#nav .nav-item{display:flex;align-items:center;gap:10px;padding:11px 12px;margin:2px 0;border-radius:10px;color:#dfe7f5;text-decoration:none;font-size:14px;transition:background .15s}
#nav .nav-item.active{background:var(--primary);color:#fff;font-weight:600}
#nav .nav-item:hover{background:rgba(255,255,255,.06)}
#nav .nav-ic{width:22px;text-align:center}
.sidebar-user{border-top:1px solid rgba(255,255,255,.08);padding:14px 16px;display:flex;align-items:center;justify-content:space-between;margin-top:8px}
.sb-role{font-size:12px;color:#8fa0c0}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:55;display:none}
.scrim.show{display:block}
#main{padding:calc(var(--topbar-h) + 14px) 14px calc(var(--bottomnav-h) + 16px);max-width:1100px;margin:0 auto}
.search-panel{position:fixed;top:var(--topbar-h);left:0;right:0;z-index:49;background:#fff;padding:10px 14px;box-shadow:0 8px 16px rgba(0,0,0,.1)}
.search-panel input{width:100%;padding:12px;border:1px solid var(--border);border-radius:10px}
#search-results{margin-top:8px;max-height:320px;overflow:auto}
.sr-item{padding:10px;border-radius:8px;cursor:pointer;display:flex;gap:10px;align-items:center}
.sr-item:hover{background:var(--primary-light)}
.sr-badge{font-size:10px;background:var(--primary-light);color:var(--primary);padding:2px 7px;border-radius:20px;font-weight:700}
.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:var(--bottomnav-h);background:#fff;border-top:1px solid var(--border);display:flex;z-index:45;box-shadow:0 -2px 10px rgba(0,0,0,.05)}
.bottom-nav .bn-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--muted);background:none;border:none}
.bottom-nav .bn-item.active{color:var(--primary);font-weight:600}
.bottom-nav .bn-item .bn-ic{font-size:19px}

/* ---------- Components ---------- */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.card-title{font-weight:700;font-size:16px;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:10px;flex-wrap:wrap}
.page-head h2{margin:0;font-size:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 16px;border:none;border-radius:10px;font-weight:600;font-size:14px;transition:filter .15s}
.btn:active{filter:brightness(.92)}
.btn-primary{background:var(--primary);color:#fff}
.btn-accent{background:var(--accent);color:#fff}
.btn-danger{background:var(--danger);color:#fff}
.btn-ghost{background:var(--primary-light);color:var(--primary)}
.btn-soft{background:#eef1f6;color:var(--text)}
.btn-outline{background:#fff;border:1px solid var(--border);color:var(--text)}
.btn-sm{padding:7px 11px;font-size:13px;border-radius:8px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:10px;background:#fff;margin:5px 0;color:var(--text)}
textarea{min-height:70px;resize:vertical}
label.fld{display:block;font-size:12px;font-weight:600;color:var(--muted);margin:10px 0 2px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.form-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
@media(max-width:480px){.form-row-3{grid-template-columns:1fr 1fr}}

table.data{width:100%;border-collapse:collapse;font-size:14px}
table.data th{background:#f5f7fb;text-align:left;padding:10px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.3px;position:sticky;top:0}
table.data td{padding:11px 10px;border-bottom:1px solid var(--border);vertical-align:top}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.pill{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.pill.green{background:#e2f6ec;color:#0a7d3f}
.pill.red{background:#fde8e8;color:#b0281c}
.pill.orange{background:#fef3e2;color:#b9770b}
.pill.blue{background:#e7eefc;color:var(--primary)}
.pill.gray{background:#eef1f6;color:#5a6474}
.muted{color:var(--muted)}
.right{text-align:right}
.bold{font-weight:700}
.money{font-variant-numeric:tabular-nums}
.row{display:flex;align-items:center;gap:8px}
.row.between{justify-content:space-between}
.wrap{flex-wrap:wrap}
.grow{flex:1}
.mt{margin-top:12px}.mb{margin-bottom:12px}
.empty{padding:40px 20px;text-align:center;color:var(--muted)}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.stat{background:#fff;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.stat .label{font-size:12px;color:var(--muted)}
.stat .value{font-size:22px;font-weight:800;margin-top:3px}
.stat .icon{font-size:22px}
.list-row{display:flex;align-items:center;gap:10px;padding:12px;border-bottom:1px solid var(--border)}
.list-row:last-child{border-bottom:none}

/* chips / quick nav */
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
.chip{white-space:nowrap;padding:8px 14px;background:#fff;border:1px solid var(--border);border-radius:20px;font-size:13px;font-weight:600;color:var(--muted)}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* POS specific */
.pos-layout{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:880px){.pos-layout{grid-template-columns:1fr 340px;align-items:start}}
.pos-cart{position:sticky;top:calc(var(--topbar-h) + 10px)}
.cart-item{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px dashed var(--border)}
.cart-line{flex:1}
.search-pad input{width:100%;padding:13px;border:1px solid var(--border);border-radius:12px;font-size:16px}
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.prod-card{background:#fff;border-radius:12px;padding:12px;box-shadow:var(--shadow);cursor:pointer;text-align:center}
.prod-card:active{transform:scale(.97)}
.prod-card .pc-name{font-weight:600;font-size:13px;line-height:1.2}
.prod-card .pc-price{color:var(--primary);font-weight:800;margin-top:4px}
.prod-card .pc-stock{font-size:11px;color:var(--muted)}
.prod-card.low{outline:2px solid var(--warn)}

/* Modal */
.modal-back{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:80;display:flex;align-items:flex-end;justify-content:center}
@media(min-width:560px){.modal-back{align-items:center}}
.modal{background:#fff;border-radius:18px 18px 0 0;max-width:560px;width:100%;max-height:92vh;overflow-y:auto;padding:20px;animation:slideUp .2s}
@media(min-width:560px){.modal{border-radius:18px}}
@keyframes slideUp{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.modal-head h3{margin:0}

/* Toast */
.toast{position:fixed;left:50%;bottom:calc(var(--bottomnav-h) + 14px);transform:translateX(-50%);background:#1c2333;color:#fff;padding:11px 18px;border-radius:30px;z-index:90;opacity:0;transition:opacity .25s;pointer-events:none;font-size:14px;max-width:90%;text-align:center}
.toast.show{opacity:1}
.toast.ok{background:var(--accent)}.toast.err{background:var(--danger)}

/* switch */
.switch{position:relative;display:inline-block;width:46px;height:26px}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;inset:0;background:#cfd6e2;border-radius:26px;transition:.2s}
.slider:before{content:"";position:absolute;width:20px;height:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
input:checked+.slider{background:var(--primary)}
input:checked+.slider:before{transform:translateX(20px)}
.tabs{display:flex;gap:4px;background:#eef1f6;border-radius:10px;padding:4px;margin-bottom:12px}
.tab{flex:1;text-align:center;padding:9px;border:none;background:transparent;border-radius:8px;font-weight:600;color:var(--muted)}
.tab.active{background:#fff;color:var(--primary);box-shadow:var(--shadow)}
.perms{display:grid;grid-template-columns:1fr;gap:6px}
@media(min-width:560px){.perms{grid-template-columns:1fr 1fr}}
.perm-item{display:flex;align-items:center;gap:8px;font-size:13px;padding:6px}
.perm-item input{width:auto;margin:0}
.perm-item input[type=checkbox]{transform:scale(1.2)}
.kbd{background:var(--primary-light);color:var(--primary);border-radius:5px;padding:1px 6px;font-size:12px}
.sm{font-size:12px}
/* timeline (delivery tracking) */
.timeline{margin-left:6px}
.tl-item{display:flex;gap:12px;padding-bottom:16px;position:relative}
.tl-item:before{content:"";position:absolute;left:16px;top:30px;bottom:0;width:2px;background:var(--border)}
.tl-item:last-child:before{display:none}
.tl-dot{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;box-shadow:var(--shadow)}
.tl-body{flex:1;background:#f8fafc;border-radius:10px;padding:8px 12px}