:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#102a2a;background:#f3f7f6;--pri:#0f766e;--pri2:#115e59;--line:#dbe8e5;--muted:#66807c;--danger:#b42318}*{box-sizing:border-box}body{margin:0;padding-bottom:82px}button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.boot{position:fixed;z-index:50;inset:0;background:#f3f7f6;display:grid;place-items:center;font-weight:700}.topbar{position:sticky;top:0;z-index:10;background:rgba(243,247,246,.96);backdrop-filter:blur(12px);display:flex;justify-content:space-between;align-items:center;padding:14px max(16px,calc((100vw - 1100px)/2));border-bottom:1px solid var(--line)}h1,h2,h3,p{margin:0}h1{font-size:20px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--pri)}.top-actions{display:flex;gap:8px}.top-actions select{max-width:145px}main{max-width:1100px;margin:auto;padding:16px}.page{display:none}.page.active{display:block}.page-title,.panel-head,.section-back,.total-line,.summary-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.page-title{margin:6px 0 14px}.panel{background:white;border:1px solid var(--line);border-radius:18px;padding:16px;margin-bottom:14px;box-shadow:0 4px 18px rgba(16,42,42,.04)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}.stats.six{grid-template-columns:repeat(3,1fr)}.stat{background:white;border:1px solid var(--line);border-radius:16px;padding:14px;text-align:left}.stat span{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}.stat strong{font-size:18px}.jump{color:inherit}.search,input,select,textarea{width:100%;border:1px solid #cfe0dc;border-radius:11px;padding:10px 12px;background:#fff}.search{margin-bottom:10px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}.form-grid label{font-size:12px;color:var(--muted)}.form-grid label input,.form-grid label select{margin-top:5px}.wide{grid-column:1/-1}.primary,.ghost,.file-btn,.icon-btn,.text-btn,.qty-btn{border:0;border-radius:10px;padding:10px 13px}.primary{background:var(--pri);color:#fff;font-weight:700}.primary:hover{background:var(--pri2)}.ghost,.file-btn{background:#edf5f3;color:#173f3b}.danger{color:var(--danger)!important}.small{padding:7px 10px;font-size:12px}.full{width:100%}.icon-btn{width:42px}.text-btn{background:transparent;color:var(--pri)}.chips{display:flex;gap:7px;overflow:auto;margin-bottom:10px;padding-bottom:2px}.chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:7px 11px;white-space:nowrap}.chip.active{background:#d9efeb;border-color:#9ed1c8}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.product-card{position:relative;border:1px solid var(--line);border-radius:14px;background:#fff;padding:13px;text-align:left;min-height:78px}.product-card small,.list-row small,.stock-row small,.customer-card small{display:block;color:var(--muted);margin-top:4px}.qty-badge{position:absolute;right:8px;top:8px;background:var(--pri);color:white;border-radius:99px;min-width:24px;height:24px;display:grid;place-items:center;font-size:12px}.cart-row,.list-row,.stock-row{display:flex;align-items:center;gap:8px;border-bottom:1px solid #edf3f1;padding:10px 0}.cart-row>div,.list-row>div,.stock-row>div{flex:1}.qty-btn{background:#edf5f3;min-width:36px}.qty-input{width:54px;text-align:center}.cart-remove{color:var(--danger)}.total-line{font-size:14px;margin:12px 0}.total-line strong{font-size:20px}.list-row:last-child,.stock-row:last-child{border-bottom:0}.customer-card{background:white;border:1px solid var(--line);border-radius:15px;margin-bottom:9px;overflow:hidden}.customer-head{width:100%;display:flex;justify-content:space-between;padding:14px;border:0;background:#fff}.customer-detail{padding:0 14px 14px}.debt-line{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;padding:9px 0;border-top:1px solid #edf3f1}.tabs{display:flex;gap:8px;margin-bottom:12px}.tab{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 13px}.tab.active{background:var(--pri);color:#fff}.warehouse-view,.debt-view{display:none}.warehouse-view.active,.debt-view.active{display:block}.stock-row{display:grid;grid-template-columns:minmax(130px,1fr) 105px 105px 125px;align-items:end}.stock-row label{font-size:11px;color:var(--muted)}.stock-row input,.stock-row select{margin-top:4px}.summary-cards{display:flex;gap:8px;overflow:auto;margin:10px 0}.summary-cards span,.summary-row span{background:#edf5f3;padding:8px 10px;border-radius:10px;font-size:12px}.more-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.more-card{border:1px solid var(--line);border-radius:15px;background:#fff;padding:18px;text-align:left}.more-card span{display:block;color:var(--muted);margin-top:5px;font-size:12px}.data-actions{display:flex;flex-wrap:wrap;gap:8px}.hint{font-size:12px;color:var(--muted);margin:10px 0}.switch-row{display:flex;gap:8px;align-items:center;margin-bottom:12px}.switch-row input{width:auto}.compact .list-row{padding:7px 0;font-size:12px}.bottom-nav{position:fixed;z-index:20;bottom:0;left:0;right:0;display:flex;overflow-x:auto;background:#fff;border-top:1px solid var(--line);padding:max(7px,env(safe-area-inset-bottom)) 6px 7px}.nav{flex:1;min-width:78px;border:0;background:transparent;padding:8px 6px;border-radius:10px;color:#5f7672;font-size:11px}.nav.active{background:#dff1ed;color:#0d625a;font-weight:800}.modal{position:fixed;z-index:40;inset:0;background:rgba(8,26,24,.45);display:grid;place-items:center;padding:16px}.modal-card{position:relative;background:#fff;width:min(620px,100%);max-height:90vh;overflow:auto;border-radius:18px;padding:20px}.modal-close{position:absolute;right:10px;top:10px;border:0;background:#edf5f3;border-radius:99px;width:34px;height:34px}.toast{position:fixed;z-index:60;left:50%;bottom:95px;transform:translate(-50%,20px);background:#173f3b;color:white;padding:10px 14px;border-radius:10px;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}.toast.error{background:#8f1d18}.empty{color:var(--muted);padding:14px;text-align:center}.positive{color:#08783f}.negative{color:#b42318}@media(max-width:760px){main{padding:12px}.stats,.stats.six{grid-template-columns:1fr 1fr}.product-grid{grid-template-columns:1fr 1fr}.stat strong{font-size:15px}.stock-row{grid-template-columns:1fr 80px 80px}.stock-row .cost-col{grid-column:2/4}.topbar{padding:12px}.form-grid{grid-template-columns:1fr 1fr}}@media(max-width:420px){.stats,.stats.six{gap:7px}.stat{padding:11px}.product-grid{gap:6px}.form-grid{grid-template-columns:1fr}.wide{grid-column:auto}}
/* v2.1: giao diện công nợ gọn và bộ lọc */
.filter-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}.filter-grid label{font-size:11px;color:var(--muted)}.filter-grid input,.filter-grid select{margin-top:4px}.customer-head>span{text-align:left;min-width:0}.debt-item{border-top:1px solid #edf3f1;padding:4px 0}.debt-item .debt-line{border-top:0;grid-template-columns:minmax(0,1fr) auto}.row-actions{display:flex;gap:6px;align-items:center;flex:0 0 auto!important}.payment-history{margin:0 0 8px 14px;padding-left:12px;border-left:2px solid #dbe8e5}.payment-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 0}.payment-row>div:first-child{min-width:0}.subhead{display:block;color:var(--muted);font-weight:700;padding-top:4px}.bottom-nav .nav{min-width:0}
@media(max-width:760px){.filter-grid{grid-template-columns:1fr 1fr}.payment-row{align-items:flex-start}.row-actions{flex-wrap:wrap;justify-content:flex-end}}
@media(max-width:420px){.bottom-nav .nav{padding:8px 3px;font-size:10px}.debt-item .debt-line{align-items:start}}