:root{--bg:#F6F5F1;--card:#FFFFFF;--ink:#1D2320;--mut:#5E6662;--line:#DFDDD6;--acc:#14532D;--acc2:#E7F2EA;--red:#B3261E;--redbg:#FBEAE8;--amb:#8A5A00;--ambbg:#FFF4DB;--grn:#1B6B3A;--grnbg:#E5F4EA;--wa:#128C4B;color-scheme:light}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:15px;-webkit-text-size-adjust:100%}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
a{color:var(--acc)}
button,input,select,textarea{font:inherit;color:inherit}
input,select,textarea{width:100%;min-height:44px;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:#fff}
textarea{min-height:70px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--acc);outline-offset:0;border-color:var(--acc)}
label{display:flex;flex-direction:column;gap:5px;font-size:13px;font-weight:600;color:var(--mut)}
h1,h2,h3{margin:0}
.empty{padding:28px 16px;text-align:center;color:var(--mut)}
.muted{color:var(--mut)}.red{color:var(--red)}.green{color:var(--grn)}.r{text-align:right}.b{font-weight:700}
.top{position:sticky;top:0;z-index:20;background:var(--acc);color:#fff;padding:10px 14px;display:flex;align-items:center;gap:10px}
.top .ttl{flex:1;min-width:0}.top .ttl b{display:block;font-size:17px}.top .ttl small{opacity:.85;font-size:12px}
.top button{background:rgba(255,255,255,.14);border:0;color:#fff;border-radius:10px;min-height:40px;padding:0 12px;font-weight:600}
.tabs{position:sticky;top:60px;z-index:19;display:flex;gap:6px;overflow-x:auto;padding:8px 10px;background:#fff;border-bottom:1px solid var(--line);scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:0 0 auto;border:1px solid var(--line);background:var(--bg);border-radius:999px;min-height:40px;padding:0 14px;font-weight:600;white-space:nowrap}
.tab.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.badge{display:inline-block;min-width:20px;padding:1px 6px;margin-left:4px;border-radius:999px;background:var(--red);color:#fff;font-size:12px;text-align:center}
main{max-width:980px;margin:0 auto;padding:14px 12px 40px;display:flex;flex-direction:column;gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:10px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row>*{flex:1 1 auto}
.two{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.three{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
@media (max-width:420px){.three{grid-template-columns:1fr 1fr}}
.btn{border:1px solid var(--line);background:#fff;border-radius:10px;min-height:44px;padding:0 14px;font-weight:600;cursor:pointer;flex:0 0 auto}
.btn.pri{background:var(--acc);border-color:var(--acc);color:#fff}
.btn.dark{background:var(--ink);border-color:var(--ink);color:#fff}
.btn.wa{background:var(--wa);border-color:var(--wa);color:#fff}
.btn.danger{color:var(--red);border-color:#E6B8B3}
.btn.sm{min-height:36px;padding:0 10px;font-size:13px}
.btn.wide{width:100%}
.btn:disabled{opacity:.5}
.seg{display:flex;gap:6px}.seg button{flex:1;border:1.5px solid var(--line);background:#fff;border-radius:10px;min-height:44px;font-weight:600}
.seg button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 10px;font-size:13px;font-weight:600}
.st{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:700}
.st.full{background:var(--grnbg);color:var(--grn)}.st.partial{background:var(--ambbg);color:var(--amb)}.st.pending{background:var(--redbg);color:var(--red)}.st.cancelled{background:#ECECEC;color:#555}
.alert{border-radius:12px;padding:10px 12px;font-weight:600}
.alert.low{background:var(--redbg);color:var(--red)}.alert.info{background:var(--acc2);color:var(--acc)}.alert.warn{background:var(--ambbg);color:var(--amb)}
.billhead{display:flex;justify-content:space-between;align-items:center}
.billhead .no{font-size:22px;font-weight:800}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:#fff}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{background:#F1EFEA;font-size:12px;color:var(--mut);white-space:nowrap}
tr:last-child td{border-bottom:0}
tr.click{cursor:pointer}
tr.lowrow td{background:#FDF3F2}
tfoot td{font-weight:700;background:#FAFAF7}
/* bill rows */
.lines{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.lh,.ln{display:grid;grid-template-columns:16px minmax(0,1fr) 46px 62px 64px;gap:5px;align-items:center;padding:6px 8px}
.lh{background:#F1EFEA;font-size:12px;font-weight:700;color:var(--mut)}
.ln{border-top:1px solid var(--line)}
.ln input{min-height:40px;padding:6px 8px;font-size:14px}
.ln .qty,.ln .rate{text-align:center;padding:6px 2px}
.ln .amt{text-align:right;font-weight:700;font-size:14px}
.ln .num{font-weight:700;color:var(--mut);font-size:13px}
.ln .info{grid-column:2/-1;font-size:12px;color:var(--mut);margin-top:-2px}
.ln .info.bad{color:var(--red)}
.ln .mrp{display:block;font-size:11px;color:var(--mut);text-decoration:line-through}
.lf{display:flex;justify-content:space-between;padding:10px 12px;border-top:1px solid var(--line);background:#FAFAF7;font-weight:700}
.tot{display:flex;justify-content:space-between;align-items:baseline}
.grand{font-size:26px;font-weight:800;color:var(--acc)}
.pendbox{display:flex;align-items:center;justify-content:flex-end;min-height:44px;padding:0 12px;border-radius:10px;background:var(--redbg);color:var(--red);font-weight:800}
.qr{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px;border:1px dashed var(--line);border-radius:12px;background:#fff}
.qr svg{width:180px;height:180px}
.list{display:flex;flex-direction:column;gap:8px}
.item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;display:flex;flex-direction:column;gap:4px;cursor:pointer;text-align:left}
.item .l1{display:flex;justify-content:space-between;gap:8px;font-weight:700}
.item .l2{display:flex;justify-content:space-between;gap:8px;font-size:13px;color:var(--mut)}
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
.stat small{display:block;color:var(--mut);font-size:12px;font-weight:600}.stat b{font-size:20px}
.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.lbox{width:100%;max-width:380px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:14px}
.lbox h1{font-size:24px;text-align:center}.lbox p{margin:0;text-align:center}
.holds{display:flex;gap:6px;flex-wrap:wrap}
.log{border-left:3px solid var(--line);padding:4px 0 4px 10px;font-size:13px;display:flex;flex-direction:column;gap:2px}
.log .ba{color:var(--mut)}
.note{font-size:12px;color:var(--mut);margin:0}
/* modal, toast, busy */
#modal{position:fixed;inset:0;z-index:50;background:rgba(20,24,22,.5);display:none;align-items:flex-end;justify-content:center}
#modal.on{display:flex}
.mbox{width:100%;max-width:640px;max-height:92vh;overflow:auto;background:#fff;border-radius:18px 18px 0 0;padding:16px 16px calc(16px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:12px}
@media (min-width:700px){#modal{align-items:center}.mbox{border-radius:18px}}
.mbox h2{font-size:18px}
#modalBody{display:flex;flex-direction:column;gap:10px}
.mact{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(120px);background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px;z-index:60;max-width:90vw;transition:transform .25s;font-weight:600}
#toast.show{transform:translateX(-50%) translateY(0)}
#busy{position:fixed;inset:0;z-index:70;display:none;align-items:center;justify-content:center;background:rgba(255,255,255,.4)}
#busy.on{display:flex}
.spin{width:40px;height:40px;border:4px solid var(--line);border-top-color:var(--acc);border-radius:50%;animation:sp 1s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.hide{display:none!important}