:root{--bg:#f3f7f6;--surface:#fff;--ink:#132523;--muted:#61716f;--line:#dce7e5;--brand:#0f766e;--brand-dark:#0b5f59;--soft:#e7f5f2;--warn:#b45309;--warn-soft:#fff7ed;--danger:#b91c1c;--radius:18px;--shadow:0 12px 32px rgba(15,118,110,.08)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}button,input,select{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{margin-bottom:0;font-size:1.45rem}h1 small{font-size:.7rem;color:var(--muted)}h2{margin-bottom:0;font-size:clamp(1.4rem,4vw,2rem)}h3{margin-bottom:0;font-size:1rem}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:max(18px,env(safe-area-inset-top)) 24px 14px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.eyebrow{color:var(--brand);font-weight:800;letter-spacing:.12em;font-size:.7rem;margin-bottom:4px}.status{padding:8px 12px;border-radius:999px;background:var(--soft);color:var(--brand-dark);font-size:.8rem;font-weight:700}.status.offline{background:#fef2f2;color:var(--danger)}.tabs{display:flex;gap:8px;padding:12px 24px;overflow-x:auto;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:82px;z-index:9}.tab{border:0;background:transparent;color:var(--muted);padding:10px 14px;border-radius:999px;white-space:nowrap;font-weight:700}.tab.active{color:white;background:var(--brand)}main{width:min(1220px,calc(100% - 32px));margin:28px auto 60px}.page{display:none}.page.active{display:block}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:20px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}.stats-grid.six{grid-template-columns:repeat(3,1fr)}.stat-card,.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.stat-card{padding:18px}.stat-card span{display:block;color:var(--muted);font-size:.85rem;margin-bottom:10px}.stat-card strong{font-size:1.35rem}.stat-card.warning{background:var(--warn-soft)}.two-column{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel{padding:20px}.space-top{margin-top:18px}.panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.badge{display:inline-flex;min-width:28px;height:28px;align-items:center;justify-content:center;background:var(--soft);color:var(--brand);border-radius:999px;font-weight:800}.list{display:grid;gap:10px}.list.empty,.cards-list.empty{color:var(--muted);padding:18px 0}.list-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px;background:#f8fbfa;border-radius:12px}.list-row small{color:var(--muted);display:block;margin-top:3px}.button{border:0;border-radius:12px;background:var(--brand);color:white;padding:11px 16px;font-weight:800;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.button:hover{background:var(--brand-dark)}.button.secondary{background:var(--surface);color:var(--brand);border:1px solid var(--line)}.button.small{padding:7px 10px;font-size:.8rem}.button.full{width:100%;margin-top:8px}.icon-button{width:34px;height:34px;border:0;border-radius:10px;background:#eef5f3;color:var(--ink);font-size:1.4rem}.field{display:grid;gap:7px;color:var(--muted);font-size:.85rem;font-weight:700;margin-bottom:14px}.check{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.85rem;font-weight:700}.check input{width:19px;height:19px}input,select{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:12px;background:white;color:var(--ink);outline:none}input:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,118,110,.1)}.hint{color:var(--muted);font-size:.83rem;margin-top:10px;line-height:1.5}.hidden{display:none!important}.detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;align-items:end}.detail-grid .field{margin:0}.span-2{grid-column:span 2}.form-row{display:flex;gap:12px;align-items:end}.form-row .field{margin:0}.grow{flex:1}.toolbar{display:flex;gap:10px;margin-bottom:14px}.toolbar input{flex:1}.toolbar select{width:auto;min-width:180px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;min-width:780px}th,td{padding:12px 10px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}th{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}td small{display:block;color:var(--muted);margin-top:3px}.low{color:var(--danger);font-weight:800}.mode-tag{display:inline-flex;padding:5px 8px;border-radius:999px;font-size:.73rem;font-weight:800;background:var(--soft);color:var(--brand-dark)}.mode-tag.weekly{background:#fff7ed;color:#9a3412}.weekly-table input{min-width:82px;padding:8px}.summary-bar{display:flex;align-items:center;justify-content:flex-end;gap:22px;flex-wrap:wrap;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}.summary-bar div{display:grid;gap:3px}.summary-bar span{font-size:.75rem;color:var(--muted)}.summary-bar strong{font-size:1.05rem}.cards-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.customer-card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.customer-top{display:flex;justify-content:space-between;gap:12px}.debt-balance{color:var(--danger);font-size:1.2rem;font-weight:900}.debt-balance.zero{color:var(--brand)}.customer-meta{color:var(--muted);font-size:.82rem;margin:8px 0}.customer-actions{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:10px}.customer-actions.two{grid-template-columns:1fr 1fr}.details{margin-top:12px;border-top:1px solid var(--line);padding-top:10px}.details summary{cursor:pointer;font-weight:700;color:var(--brand)}.debt-line{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:.86rem}.debt-line small{display:block;color:var(--muted);margin-top:2px}.chat-panel{padding:0;overflow:hidden}.chat-messages{min-height:420px;max-height:58vh;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px}.message{max-width:82%;padding:12px 14px;border-radius:16px;line-height:1.5;white-space:pre-wrap}.message.assistant{background:var(--soft);align-self:flex-start}.message.user{background:var(--brand);color:white;align-self:flex-end}.chat-input{display:grid;grid-template-columns:1fr auto;gap:10px;padding:14px;border-top:1px solid var(--line);background:#fbfdfd}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--ink);color:white;padding:12px 16px;border-radius:12px;transition:.2s ease;z-index:99;box-shadow:var(--shadow)}.toast.show{opacity:1;transform:translate(-50%,0)}.toast.error{background:var(--danger)}
@media(max-width:900px){.stats-grid.six{grid-template-columns:repeat(2,1fr)}.two-column,.cards-list{grid-template-columns:1fr}.detail-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.topbar{padding-left:16px;padding-right:16px}.tabs{padding-left:12px;padding-right:12px;top:79px}main{width:min(100% - 22px,1220px);margin-top:18px}.section-heading{align-items:flex-start}.stats-grid,.stats-grid.six{grid-template-columns:repeat(2,1fr);gap:9px}.stat-card{padding:14px}.stat-card strong{font-size:1.02rem}.panel{padding:15px}.detail-grid{grid-template-columns:1fr}.span-2{grid-column:span 1}.form-row{display:grid}.toolbar{display:grid}.toolbar select{width:100%}.summary-bar{justify-content:stretch}.summary-bar .button{width:100%}.chat-messages{min-height:55vh}.message{max-width:92%}}

/* Replit Cloud v2 */
.header-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.login-screen{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;padding:20px;background:rgba(8,26,29,.72);backdrop-filter:blur(8px)}
.login-screen.hidden{display:none}
.login-card{width:min(420px,100%);background:#fff;border-radius:22px;padding:28px;box-shadow:0 24px 80px rgba(0,0,0,.28)}
.login-card h2{margin:6px 0 8px}
.login-icon{width:64px;height:64px;margin-bottom:8px}
.login-error{min-height:24px;margin-top:12px;color:#b42318;font-weight:700}
@media(max-width:640px){.header-actions{width:100%;justify-content:stretch}.header-actions .button{flex:1;text-align:center}.login-card{padding:22px}}

/* Quản lý linh hoạt: đơn hàng, công nợ và kiểm kho */
.dashboard-link{cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.dashboard-link:hover,.dashboard-link:focus-visible{transform:translateY(-2px);border-color:#9fcfc8;box-shadow:0 16px 34px rgba(15,118,110,.14);outline:none}.stat-card small{display:block;color:var(--brand);font-weight:700;margin-top:10px}.text-link{color:var(--brand);font-size:.82rem;font-weight:800}.hint.compact{margin:3px 0 0}.button.danger{background:#fff;color:var(--danger);border:1px solid #fecaca}.button.danger:hover{background:#fef2f2}.form-actions,.inline-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.form-actions{grid-column:span 2}.product-picker-toolbar{display:grid;grid-template-columns:1fr minmax(150px,auto)}.quick-products{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;max-height:560px;overflow-y:auto;padding-right:3px}.quick-product{display:grid;gap:5px;text-align:left;padding:13px;border:1px solid var(--line);border-radius:14px;background:#f8fbfa;color:var(--ink);transition:.15s ease}.quick-product:hover{border-color:var(--brand);background:var(--soft);transform:translateY(-1px)}.quick-product span{font-weight:800}.quick-product strong{color:var(--brand)}.quick-product small{color:var(--muted)}.quick-product.unavailable{opacity:.48;cursor:not-allowed}.cart-row{display:grid;grid-template-columns:minmax(120px,1fr) auto auto;gap:10px;align-items:center;padding:12px;background:#f8fbfa;border-radius:12px}.cart-name small{display:block;color:var(--muted);margin-top:3px}.cart-controls{display:flex;align-items:center;gap:5px}.cart-quantity{width:58px;padding:7px;text-align:center}.qty-button{width:31px;height:31px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--brand);font-weight:900}.cart-subtotal{white-space:nowrap}.order-list{display:grid;gap:12px}.order-list.empty{color:var(--muted);padding:18px 0}.order-card,.audit-card{border:1px solid var(--line);border-radius:14px;background:#fbfdfd;padding:14px}.order-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.order-head small{display:block;color:var(--muted);margin-top:4px}.order-items{display:grid;gap:8px;margin:12px 0}.order-items>div{display:flex;justify-content:space-between;gap:12px;padding:8px 10px;border-radius:10px;background:#fff}.order-totals{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.84rem;margin:10px 0}.debt-action-box{margin-top:12px;padding:12px;border-radius:13px;background:#f8fbfa;border:1px solid var(--line)}.debt-action-box.pay-box{background:#f7fbff}.debt-action-box h4{margin:0 0 9px;font-size:.84rem;color:var(--brand)}.debt-form-grid{display:grid;grid-template-columns:150px 1fr 1.4fr;gap:8px;margin-bottom:8px}.debt-form-grid.pay-grid{grid-template-columns:1fr 1.5fr 1fr}.debt-entry{padding:12px 0;border-bottom:1px solid var(--line)}.debt-entry:last-child{border-bottom:0}.debt-edit-grid{display:grid;grid-template-columns:150px 1fr 2fr;gap:8px;margin-top:10px}.debt-edit-grid .field{margin:0}.debt-edit-grid .span-2{grid-column:auto}.debt-status{font-weight:800;color:var(--danger);text-align:right}.debt-history>summary{margin-bottom:8px}.audit-card .list-row{padding:0;background:transparent}.audit-card .details{margin-top:10px}.sale-layout{align-items:start}
@media(max-width:760px){.quick-products{grid-template-columns:1fr 1fr}.product-picker-toolbar{grid-template-columns:1fr}.cart-row{grid-template-columns:1fr auto}.cart-subtotal{grid-column:1/-1;text-align:right}.debt-form-grid,.debt-form-grid.pay-grid,.debt-edit-grid{grid-template-columns:1fr}.form-actions{grid-column:span 1}.debt-edit-grid .span-2{grid-column:span 1}}
@media(max-width:420px){.quick-products{grid-template-columns:1fr}.order-head{align-items:flex-start}.cart-controls{justify-content:flex-end}.debt-line{align-items:flex-start}.inline-actions .button{flex:1}.section-heading{flex-wrap:wrap}}

/* v2.5 FULL FEATURES */
.topbar-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}.store-switch{display:flex;align-items:center;gap:7px;font-size:.78rem;font-weight:800;color:var(--muted)}.store-switch select{min-width:150px;padding:8px 10px}.quick-product{position:relative}.quick-product.selected{border-color:var(--brand);background:var(--soft);box-shadow:inset 0 0 0 1px rgba(15,118,110,.15)}.quick-selected-count{position:absolute!important;right:9px;top:9px;min-width:28px;height:28px;padding:0 8px;border-radius:999px;background:var(--brand);color:#fff!important;display:flex!important;align-items:center;justify-content:center;font-size:.78rem}.quick-selected-remove{position:absolute!important;right:39px;top:10px;width:25px;height:25px;border-radius:999px;background:#fff;color:var(--danger)!important;border:1px solid #fecaca;display:flex!important;align-items:center;justify-content:center;font-size:1rem;z-index:2}.debt-toolbar{align-items:end;flex-wrap:wrap}.mini-field{display:grid;gap:5px;font-size:.75rem;font-weight:800;color:var(--muted)}.mini-field input{min-width:145px;padding:10px}.payment-history{margin:10px 0;padding:9px 10px;border-radius:12px;background:#f7fbff;border:1px solid #dcecf8}.payment-history summary{cursor:pointer;font-weight:800;color:#2563eb}.payment-entry{display:grid;grid-template-columns:135px 150px 1fr auto auto;gap:7px;align-items:end;margin-top:9px}.payment-entry .field{margin:0}.export-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.file-result{margin-top:12px;padding:12px;border-radius:12px;background:#f8fbfa;border:1px solid var(--line);white-space:pre-wrap;line-height:1.5}.file-result textarea{width:100%;min-height:180px;margin:10px 0;padding:12px;border:1px solid var(--line);border-radius:12px;font:inherit}.store-card{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#fff}.store-card.active{border-color:var(--brand);background:var(--soft)}.store-card small{display:block;color:var(--muted);margin-top:4px}.upload-panel{border-style:dashed}.upload-panel .panel-title{margin-bottom:0}
@media(max-width:800px){.payment-entry{grid-template-columns:1fr 1fr}.payment-entry .grow{grid-column:1/-1}.export-grid{grid-template-columns:1fr}.topbar-tools{justify-content:flex-start}.store-card{align-items:flex-start;flex-direction:column}.store-card .inline-actions{width:100%}.debt-toolbar{display:grid;grid-template-columns:1fr 1fr}.debt-toolbar>input,.debt-toolbar>select{grid-column:1/-1}}
@media(max-width:600px){.topbar{align-items:flex-start;flex-direction:column}.tabs{top:142px}.store-switch{width:100%}.store-switch select{flex:1}.topbar-tools{width:100%}.status{font-size:.72rem}.debt-toolbar{grid-template-columns:1fr}.debt-toolbar>*{grid-column:auto!important}.payment-entry{grid-template-columns:1fr}.quick-selected-count{right:8px;top:8px}}