:root {--bg:#f7f9fc;--surface:#fff;--ink:#16263a;--muted:#748197;--line:#e7edf4;--blue:#2463e9;--blue-soft:#eaf1ff;--green:#16835c;--green-soft:#eaf8f1;--red:#d94e4e;--red-soft:#fff0f0;--amber:#ad7012;--amber-soft:#fff6e8;--shadow:0 5px 24px rgba(29,54,95,.035);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink)}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);font-size:14px}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.48;cursor:not-allowed}input,select,textarea{outline:none}input[readonly]{background:#f3f6fa;color:#607088;cursor:default}input:focus,select:focus,textarea:focus{border-color:#6f9cf5!important;box-shadow:0 0 0 3px #2463e917}a{color:var(--blue)}
    .shell{max-width:1360px;margin:auto;min-height:100vh;display:grid;grid-template-columns:236px minmax(0,1fr)}.sidebar{background:#fff;border-right:1px solid var(--line);padding:27px 16px;display:flex;flex-direction:column;gap:22px;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px;padding:0 12px}.mark{width:38px;height:38px;border-radius:12px;background:var(--blue);color:white;display:grid;place-items:center}.brand-main{font-weight:800;letter-spacing:-.45px;font-size:18px}.brand-sub{color:var(--muted);font-size:11px;margin-top:3px}.nav-name{font-size:11px;color:#9ca7b8;font-weight:750;letter-spacing:1.15px;padding:2px 13px 0}.nav{display:grid;gap:5px}.nav-button{display:flex;align-items:center;gap:11px;border:0;background:transparent;color:#65758c;text-align:left;width:100%;padding:12px 13px;border-radius:10px;font-weight:620}.nav-button.active{color:var(--blue);background:var(--blue-soft)}.nav-button:hover{background:#f3f7fd}.side-bottom{margin-top:auto;background:#f7f9fc;border-radius:14px;padding:15px}.side-bottom-title{font-weight:750;font-size:13px}.side-bottom-description{font-size:12px;line-height:1.55;color:var(--muted);margin-top:5px}.side-email{font-size:11px;color:var(--muted);overflow-wrap:anywhere;margin-top:10px}.status-dot{display:inline-block;width:7px;height:7px;background:#22a66e;border-radius:50%;margin-right:5px}
    .main{padding:28px 34px 50px;min-width:0}.top{display:flex;justify-content:space-between;align-items:center;gap:14px}.top-title{font-size:14px;font-weight:670}.top-right{display:flex;align-items:center;gap:16px}.sync-state{color:var(--muted);font-size:12px;display:flex;align-items:center;gap:7px}.round-btn{border:1px solid var(--line);background:white;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#61728a}.user-dot{width:33px;height:33px;background:#e9efff;color:#3167cc;display:grid;place-items:center;border-radius:50%;font-weight:800}.demo-banner{padding:11px 14px;background:#fff9e9;border:1px solid #f1e0ae;border-radius:10px;color:#946411;margin-top:20px;font-size:12px;line-height:1.5}.hero{margin-top:31px;display:flex;align-items:end;justify-content:space-between;gap:18px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:var(--blue)}h1{font-size:29px;letter-spacing:-1.15px;margin:9px 0 7px;font-weight:820}p.muted{color:var(--muted);margin:0;font-size:13px;line-height:1.65}.btn{border:1px solid var(--line);background:white;padding:10px 15px;border-radius:10px;font-weight:700;font-size:12px;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap;transition:background .15s,transform .15s;min-height:39px}.btn:hover{background:#f8faff}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--blue);border-color:var(--blue);color:white}.btn-primary:hover{background:#1653d7}.btn-danger{color:var(--red)}.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn-full{width:100%}.btn-small{padding:7px 10px;min-height:31px;font-size:11px;border-radius:8px}.hero-actions{display:flex;gap:9px;flex-wrap:wrap}.hero-actions>.btn{flex-shrink:0}.export-picker{display:flex;flex-direction:column;gap:8px;margin-top:14px;max-height:50vh;overflow-y:auto}.export-option{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:left;padding:13px;cursor:pointer}.export-option:hover{border-color:#99b8ff;background:#f8faff}.export-option:focus-visible{outline:3px solid #b2c7f9}.export-option:disabled{cursor:not-allowed;opacity:.5;background:#f7f8fa}.export-title{color:var(--ink);font-weight:770;margin-bottom:4px}.export-sub{color:var(--muted);font-size:11px;line-height:1.55}.export-count{text-align:right;white-space:nowrap;flex-shrink:0;color:var(--ink);font-weight:760}.export-count small{display:block;color:var(--muted);font-weight:500;margin-top:5px}
    .stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px;margin-top:25px}.stat{padding:19px 20px;border:1px solid var(--line);background:white;border-radius:15px;box-shadow:var(--shadow)}.stat-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.stat-label{font-size:12px;color:#76849a;font-weight:650}.stat-icon{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:#f2f5fd;color:#627fae}.stat-icon.warning{background:var(--amber-soft);color:#c18322}.stat-icon.danger{background:var(--red-soft);color:var(--red)}.stat-value{font-size:29px;font-weight:800;letter-spacing:-1px;margin:12px 0 3px}.stat-foot{font-size:11px;color:#95a0b0}.panel{margin-top:24px;background:white;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:22px 22px 16px}.panel-title{font-size:16px;font-weight:800;letter-spacing:-.35px}.panel-note{font-size:12px;color:var(--muted);margin-top:5px}.filters{display:flex;flex-wrap:wrap;gap:10px;padding:0 22px 18px}.searchbox{min-width:220px;flex:2;position:relative}.searchbox svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:#8795a8}.control{width:100%;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:10px;min-height:42px;padding:10px 12px}.searchbox .control{padding-left:40px}.searchbox .control::placeholder{color:#a0aab9}.filter-control{flex:1;min-width:138px;max-width:185px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;text-align:left}th{background:#fbfcff;color:#8995a6;font-size:10px;font-weight:790;letter-spacing:.75px;text-transform:uppercase;padding:14px 15px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);white-space:nowrap}td{padding:15px;border-bottom:1px solid #eef2f7;vertical-align:middle;color:#54647a;font-size:12px}tbody tr:last-child td{border-bottom:none}tbody tr:hover{background:#fbfdff}.product-cell{min-width:205px}.sku-label{font-size:11px;color:#8491a4;margin-top:5px}.product-name{color:#1b2e45;font-weight:760;font-size:13px}.glass-label{font-weight:650;color:#45566c}.soft{font-size:11px;color:#9ca8b5;margin-top:3px}.pill{border-radius:99px;display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:750;padding:5px 9px;white-space:nowrap}.pill.good{background:var(--green-soft);color:var(--green)}.pill.low{background:var(--amber-soft);color:var(--amber)}.pill.zero{background:var(--red-soft);color:var(--red)}.quantity{font-weight:800;font-size:15px;color:#1d304a}.row-actions{display:flex;gap:6px;justify-content:end}.icon-btn{height:32px;width:32px;display:grid;place-items:center;border-radius:9px;border:1px solid var(--line);background:#fff;color:#60748e}.icon-btn:hover{border-color:#acc6fd;color:var(--blue)}.mobile-products{display:none}.prod-mobile{padding:16px;border-top:1px solid var(--line)}.prod-top{display:flex;align-items:start;justify-content:space-between;gap:10px}.prod-meta{margin-top:8px;display:flex;gap:5px;flex-wrap:wrap}.tag{font-size:11px;color:#6b7b91;background:#f2f5f9;padding:5px 8px;border-radius:6px}.prod-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}.empty{padding:65px 24px;text-align:center}.empty-ic{width:50px;height:50px;border-radius:14px;margin:auto;background:#eff4ff;display:grid;place-items:center;color:var(--blue)}.empty-title{font-weight:800;font-size:16px;margin-top:14px}.empty-text{color:var(--muted);margin:8px auto 18px;max-width:330px;line-height:1.65}.panel-footer{border-top:1px solid var(--line);padding:14px 22px;font-size:12px;color:var(--muted)}.history-name{font-weight:700;color:var(--ink)}.delta{font-weight:820}.delta.plus{color:var(--green)}.delta.minus{color:var(--red)}.history-card{padding:14px 18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px}.history-card-sub{color:var(--muted);font-size:11px;margin-top:6px}.history-card-right{text-align:right}.small{font-size:11px;color:var(--muted)}.hidden{display:none!important}
    .backdrop{position:fixed;inset:0;background:rgba(12,27,50,.48);display:flex;align-items:center;justify-content:center;padding:18px;z-index:100}.modal{width:min(590px,100%);max-height:min(92vh,900px);background:white;box-shadow:0 24px 90px #1024433a;border-radius:18px;display:flex;flex-direction:column;overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:21px 24px;border-bottom:1px solid var(--line)}.modal-title{font-size:18px;font-weight:800;letter-spacing:-.4px}.modal-desc{color:var(--muted);font-size:12px;margin-top:5px}.modal-body{overflow-y:auto;padding:23px 24px}.modal-footer{display:flex;justify-content:space-between;gap:10px;padding:15px 24px;border-top:1px solid var(--line);background:#fff}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}#rain-sensor-wrap .field{height:100%}.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field.wide{grid-column:1/-1}.field label{font-size:12px;font-weight:750;color:#46556b}.field label .req{color:#d74e4e}.field input,.field select,.field textarea{width:100%;min-height:42px;border-radius:9px;background:#fff;border:1px solid #dce4ef;padding:10px 12px;color:#1b2e45}.field textarea{resize:vertical;min-height:69px;line-height:1.5}.field small{font-size:11px;color:var(--muted);line-height:1.45}.form-divider{height:1px;background:var(--line);grid-column:1/-1;margin:5px 0}.form-section{grid-column:1/-1;font-weight:800;font-size:13px}.stock-focus{text-align:center;border:1px solid var(--line);background:#fafcff;border-radius:12px;padding:20px;margin-bottom:18px}.stock-focus .current{font-size:34px;font-weight:850;letter-spacing:-1px}.stock-focus .hint{font-size:12px;color:var(--muted);margin-top:4px}.seg{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:17px}.seg button{padding:13px 10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#62728c;font-weight:800}.seg button.active.in{background:var(--green-soft);color:#14724f;border-color:#bcebd3}.seg button.active.out{background:var(--red-soft);color:#b63f3f;border-color:#ffd1d1}.result-hint{margin-top:15px;padding:12px;border-radius:10px;background:#f7f9fc;font-size:12px;color:#5c6e84}.toast-zone{position:fixed;bottom:22px;right:22px;z-index:200;display:grid;gap:8px;max-width:min(430px,calc(100vw - 36px))}.toast{background:#17324e;color:white;padding:13px 15px;border-radius:11px;box-shadow:0 9px 30px #213a5f2e;font-weight:650;font-size:12px;line-height:1.5}.toast.error{background:#9c3434}.btn-spinner{width:14px;height:14px;border:2px solid #ffffff70;border-top-color:white;border-radius:50%;display:inline-block;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
    @media(max-width:1100px){.shell{grid-template-columns:200px 1fr}.main{padding:25px 23px 40px}.sidebar{padding:25px 12px}.stats{gap:9px}.stat{padding:16px 14px}.panel-header{padding:19px 16px 14px}.filters{padding:0 16px 17px}.row-actions .text-action{display:none}td,th{padding:13px 11px}}
    @media(max-width:760px){.shell{display:block}.sidebar{position:static;height:auto;padding:13px 17px;border-right:0;border-bottom:1px solid var(--line);display:flex;flex-direction:row;align-items:center;gap:9px}.brand{padding:0}.brand-main{font-size:16px}.brand-sub{font-size:10px}.mark{width:34px;height:34px}.nav-name,.side-bottom{display:none}.nav{margin-left:auto;display:flex;gap:1px}.nav-button{font-size:0;padding:9px}.nav-button svg{width:19px;height:19px}.main{padding:17px 16px 36px}.top{display:none}.hero{margin-top:14px;align-items:start;flex-direction:column}.hero h1{font-size:25px;margin:6px 0}.hero-actions{align-self:stretch}.hero-actions>.btn{flex:1 1 auto}.hero-actions>.btn[data-action="refresh"]{flex:0 0 auto}.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:19px}.stat{padding:13px 14px;border-radius:12px}.stat-value{font-size:25px;margin:9px 0 2px}.stat-icon{width:30px;height:30px}.panel{margin-top:18px;border-radius:13px}.filters{gap:8px}.searchbox{flex:1 1 100%}.filter-control{max-width:none;min-width:0;flex:1 1 calc(50% - 8px)}.desktop-table{display:none}.mobile-products{display:block}.panel-header{align-items:start}.modal{max-height:100%;height:auto;max-height:93dvh;border-radius:15px}.backdrop{align-items:end;padding:0}.modal{border-radius:18px 18px 0 0;width:100%;max-height:93dvh}.modal-body{padding:17px}.modal-header{padding:18px}.modal-footer{padding:12px 17px;position:sticky;bottom:0}.form-grid{gap:11px}.eyebrow{font-size:10px}}
    @media(max-width:400px){.stats{gap:7px}.stat-label{font-size:11px}.stat{padding:11px}.hero-actions{gap:7px}.hero-actions>.btn[data-action="refresh"]{font-size:0;flex:0 0 40px;min-width:40px;padding:9px 8px}.btn{padding:9px 11px}.form-grid{grid-template-columns:1fr}.field.wide,.form-divider,.form-section{grid-column:1}}
  
/* Phuoc Hien branding & PWA safe-area */
:root{--blue:#bb3036;--blue-soft:#fff0f0;--bg:#f8f9fb;--shadow:0 6px 22px rgba(35,35,35,.035)}
.btn-primary:hover{background:#9e242a}.nav-button:hover{background:#fff6f6}
.mark{background:white;border:1px solid #eee;overflow:hidden;width:46px;height:46px;border-radius:13px}
.mark img{height:100%;width:100%;object-fit:contain}
.brand-main{font-size:15px;letter-spacing:-.35px}
.sidebar{padding-bottom:calc(16px + env(safe-area-inset-bottom))}
.main{padding-bottom:calc(44px + env(safe-area-inset-bottom))}
@media(max-width:760px){.brand-main{font-size:13px}.brand-sub{font-size:8.5px}.mark{height:38px;width:38px}.sidebar{padding-top:calc(12px + env(safe-area-inset-top))}.modal-footer{padding-bottom:calc(12px + env(safe-area-inset-bottom))}}

/* Google login curtain. Inventory never calls /api without a verified Google identity. */
.login-screen { position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(140deg,#f7f0f1 0%,#f8fafc 75%);overflow:auto; }
.login-screen.hidden { display:none; }
.auth-locked { overflow:hidden; }
.login-card { width:min(100%,390px);padding:34px 24px 28px;border:1px solid #eddde0;border-radius:22px;background:#fff;text-align:center;box-shadow:0 30px 80px rgba(40,34,40,.12); }
.login-logo { width:76px;height:76px;object-fit:contain;border-radius:17px;box-shadow:0 8px 22px #50232217; }
.login-card h1 { font-size:21px;line-height:1.3;margin:19px 0 9px;letter-spacing:-.5px; }
.login-card p { color:#607086;line-height:1.55; }
.login-card .login-hint {font-size:12px;margin-top:22px;}
.google-login-button { min-height:48px;display:flex;align-items:center;justify-content:center;margin:23px 0 10px; }
.login-message { font-size:12px;min-height:20px; }
.logout-btn { color:#7d4150;background:none;border:0;padding:11px 0 2px;font-size:12px;text-decoration:underline;text-align:left; }
@media(max-width:760px){.login-card { padding:29px 18px; }.logout-btn { display:none; }}

.mobile-logout{display:none;background:transparent;border:0;color:#8c4c59;padding:9px;align-items:center;justify-content:center;}
@media(max-width:760px){.mobile-logout{display:flex;margin-left:2px;}}

/* v2.4: iPhone viewport + product detail */
html,body{width:100%;max-width:100%;overflow-x:clip;-webkit-text-size-adjust:100%;text-size-adjust:100%}
*,*::before,*::after{box-sizing:border-box}
.shell,.main,.panel,.hero,.filters,.prod-mobile,.prod-top,.prod-bottom{min-width:0;max-width:100%}
.product-detail-link{background:none;border:0;padding:0;color:var(--ink);font-weight:760;font-size:13px;text-align:left;display:inline-flex;align-items:center;gap:5px;cursor:pointer;max-width:100%;overflow-wrap:anywhere}
.product-detail-link svg{flex-shrink:0;color:var(--blue)}
.product-detail-link:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.detail-stock{border-radius:14px;padding:18px;background:#fff6f6;margin-bottom:16px}
.detail-qty{font-size:30px;color:var(--ink);font-weight:850;margin:9px 0}
.detail-qty span{font-size:13px;font-weight:500;color:var(--muted)}
.detail-list{border:1px solid var(--line);border-radius:12px;overflow:hidden}
.detail-row{display:grid;grid-template-columns:41% minmax(0,1fr);gap:12px;padding:12px 13px;border-bottom:1px solid var(--line);font-size:13px;line-height:1.5}
.detail-row:last-child{border-bottom:0}.detail-row>span{color:var(--muted)}.detail-row>strong{color:var(--ink);overflow-wrap:anywhere;white-space:pre-wrap;text-align:right}
.detail-actions{display:flex;gap:8px}
@media(max-width:760px){
  input,select,textarea,.control,.field input,.field select,.field textarea{font-size:16px!important}
  .searchbox{min-width:0;width:100%}.modal{max-width:100vw}.modal-body{overscroll-behavior:contain}
  .prod-top>div:first-child{min-width:0;flex:1}.prod-bottom{flex-wrap:wrap}.prod-bottom .row-actions{flex-wrap:wrap}
  .detail-row{grid-template-columns:38% minmax(0,1fr)}.detail-actions .btn{padding:11px 10px}
  .modal-footer{flex-wrap:wrap}.detail-actions{flex:1;justify-content:flex-end}
}

/* v2.5 invoice controls */
#invoice-fields {display:grid;gap:10px;}#invoice-fields.hidden {display:none!important;}#invoice-quantity-wrap.hidden{display:none!important;}#stock-form .invoice-question{grid-column:1/-1}#invoice-fields{grid-column:1/-1}#invoice-fields label{display:block;font-weight:600;font-size:13px;margin-bottom:5px}#invoice-fields .control{width:100%;font-size:16px;min-height:44px}#stock-form .invoice-question label{display:block;margin-bottom:6px;font-weight:600}#stock-form .invoice-question select{width:100%;font-size:16px;min-height:44px}