/* GST Pro UI v3: light (white) + dark. Tokens first, components after. */
:root{--bg:#f4f6fa;--panel:#fff;--panel2:#f8fafc;--ink:#0f172a;--mute:#64748b;--line:#e5e9f0;--acc:#0f766e;--acc-ink:#fff;--acc-soft:#e3f4f1;--acc2:#f59e0b;--ok:#15803d;--err:#dc2626;--warn:#b45309;--okbg:#e7f6ed;--errbg:#fdecec;--warnbg:#fff3d9;--r:12px;--rs:9px;--sw:248px;--sh:0 1px 2px rgba(15,23,42,.05),0 6px 20px rgba(15,23,42,.05);color-scheme:light}
[data-theme=dark]{--bg:#0a0f1a;--panel:#111827;--panel2:#0e1522;--ink:#e6eaf3;--mute:#8e9ab0;--line:#1f2a3b;--acc:#2dd4bf;--acc-ink:#04201d;--acc-soft:#10302d;--acc2:#fbbf24;--ok:#4ade80;--err:#f87171;--warn:#fbbf24;--okbg:#10301f;--errbg:#3a1618;--warnbg:#38290c;--sh:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.25);color-scheme:dark}
html.min{--sw:72px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.55 Inter,"Segoe UI",system-ui,-apple-system,Roboto,"Noto Sans Bengali",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--acc)}h1{font-size:24px;line-height:1.2;margin:0 0 4px;font-weight:700;letter-spacing:-.02em}h2{font-size:16px;margin:0 0 12px;font-weight:650}h3{margin:0}
.sub{color:var(--mute);margin:0 0 18px}small{color:var(--mute)}.sp{flex:1}.num,td.n,.kpi b{font-variant-numeric:tabular-nums}
.ic{flex:none;vertical-align:-3px}
/* sidebar */
.side{position:fixed;inset:0 auto 0 0;width:var(--sw);background:var(--panel);border-right:1px solid var(--line);padding:14px 12px;overflow:auto;z-index:30;display:flex;flex-direction:column;transition:width .18s,transform .2s}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 16px;font-weight:700;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--acc),#0b4f49);color:#fff;display:grid;place-items:center;font-weight:800}[data-theme=dark] .mark{background:linear-gradient(135deg,var(--acc),#0f766e);color:#04201d}
.grp{color:var(--mute);font-size:11px;text-transform:uppercase;letter-spacing:.08em;padding:16px 10px 6px;white-space:nowrap}
.nv{display:flex;gap:11px;align-items:center;color:var(--ink);text-decoration:none;padding:9px 10px;border-radius:var(--rs);white-space:nowrap;position:relative;opacity:.86}
.nv:hover{background:var(--panel2);opacity:1}.nv.on{background:var(--acc-soft);color:var(--acc);opacity:1;font-weight:600}.nv.on::before{content:"";position:absolute;left:-12px;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--acc)}
.sidecard{margin-top:auto;background:var(--panel2);border:1px solid var(--line);border-radius:var(--r);padding:12px;display:flex;flex-direction:column;gap:2px}.sidecard b{font-size:15px}.sidecard span{color:var(--mute);font-size:12px}.sidecard a{margin-top:6px;font-weight:600;font-size:13px}
html.min .side .nv span,html.min .side .grp,html.min .brand span.t,html.min .sidecard{display:none}html.min .nv{justify-content:center}html.min .nv.on::before{left:-12px}
.main{margin-left:var(--sw);transition:margin .18s;min-height:100vh}
/* top bar */
.top{display:flex;align-items:center;gap:10px;padding:10px 24px;background:color-mix(in srgb,var(--panel) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.iconbtn,.ghost{background:transparent;border:1px solid var(--line);color:var(--ink);border-radius:var(--rs);min-width:38px;height:38px;display:inline-grid;place-items:center;padding:0 10px;cursor:pointer;font:inherit}.iconbtn:hover,.ghost:hover{background:var(--panel2)}
.bsw select{min-width:240px;height:38px;font-weight:600;background:var(--panel2)}.burger{display:none}
.cmdbtn{display:flex;align-items:center;gap:8px;height:38px;border:1px solid var(--line);background:var(--panel2);color:var(--mute);border-radius:var(--rs);padding:0 12px;cursor:pointer;font:inherit;min-width:220px}.cmdbtn kbd{margin-left:auto;font:11px ui-monospace,monospace;border:1px solid var(--line);border-radius:5px;padding:1px 6px;background:var(--panel)}
.who{display:flex;align-items:center;gap:9px}.avatar{width:34px;height:34px;border-radius:50%;background:var(--acc-soft);color:var(--acc);display:grid;place-items:center;font-weight:700}.who em{font-style:normal;color:var(--mute);font-size:12px;display:block;line-height:1.1}.who b{font-size:13px;line-height:1.2;display:block}
.banner{background:var(--warnbg);color:var(--warn);padding:9px 24px;font-size:13px;border-bottom:1px solid var(--line)}.banner a{margin-left:8px;font-weight:700}
.page{padding:26px 24px 70px;max-width:1320px;margin:auto}
/* cards */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:18px;margin-bottom:16px;box-shadow:var(--sh)}.panel.empty{text-align:center;color:var(--mute);padding:48px 20px}
.grid{display:grid;gap:14px}.g4{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}.g2{grid-template-columns:repeat(auto-fit,minmax(360px,1fr))}.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--sh)}.kpi span{color:var(--mute);font-size:13px}.kpi b{display:block;font-size:24px;margin-top:2px;letter-spacing:-.02em}.kpi small{display:block;margin-top:2px}
.kpi.hero{background:linear-gradient(135deg,var(--acc),#0b4f49);border-color:transparent;color:#fff}.kpi.hero span,.kpi.hero small{color:rgba(255,255,255,.8)}[data-theme=dark] .kpi.hero{color:#04201d;background:linear-gradient(135deg,var(--acc),#14b8a6)}[data-theme=dark] .kpi.hero span,[data-theme=dark] .kpi.hero small{color:rgba(4,32,29,.75)}
.bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:0 0 18px}
/* tables */
.scroll{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font-weight:600;color:var(--mute);font-size:12px;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;background:var(--panel2)}th:first-child{border-top-left-radius:8px}th:last-child{border-top-right-radius:8px}td.n,th.n{text-align:right}tr:last-child td{border-bottom:0}tr:hover td{background:color-mix(in srgb,var(--acc) 4%,transparent)}
/* forms */
input,select,textarea{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:var(--rs);padding:9px 12px;width:100%;min-height:40px;transition:border-color .12s,box-shadow .12s}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--acc);box-shadow:0 0 0 3px var(--acc-soft)}input[type=checkbox],input[type=radio]{width:auto;min-height:0;accent-color:var(--acc)}input[type=file]{padding:8px}
label{display:block;font-size:13px;font-weight:550;color:var(--mute);margin-bottom:5px}.f{margin-bottom:14px}.row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}.chk{display:flex;align-items:center;gap:9px;color:var(--ink);font-weight:500}.bar select,.bar input{width:auto}
.btn,button{font:inherit;font-weight:600;cursor:pointer;border:1px solid var(--acc);background:var(--acc);color:var(--acc-ink);border-radius:var(--rs);padding:9px 16px;min-height:40px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:filter .12s,transform .05s}
.btn:hover,button:hover{filter:brightness(1.06)}.btn:active,button:active{transform:translateY(1px)}
.btn.alt,button.alt{background:transparent;color:var(--ink);border-color:var(--line)}.btn.alt:hover,button.alt:hover{background:var(--panel2);filter:none}.btn.amber{background:var(--acc2);border-color:var(--acc2);color:#2b1700}.btn.red,button.red{background:var(--err);border-color:var(--err);color:#fff}
.btn.sm,button.sm{padding:4px 11px;font-size:13px;min-height:32px}.btn[aria-disabled=true]{opacity:.45;pointer-events:none}button:disabled{opacity:.5;cursor:not-allowed}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
/* badges, callouts */
.tag{display:inline-flex;align-items:center;gap:5px;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:600;border:1px solid var(--line);background:var(--panel2);color:var(--mute);white-space:nowrap}.tag.ok{background:var(--okbg);color:var(--ok);border-color:transparent}.tag.err{background:var(--errbg);color:var(--err);border-color:transparent}.tag.warn{background:var(--warnbg);color:var(--warn);border-color:transparent}
.flash{padding:11px 14px;border-radius:var(--rs);margin-bottom:14px;border:1px solid;font-weight:500}.flash.ok{background:var(--okbg);color:var(--ok);border-color:transparent}.flash.err{background:var(--errbg);color:var(--err);border-color:transparent}
.issue{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line)}.issue:last-child{border:0}.issue b{min-width:110px}
.strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:0 0 18px}.strip div{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px 12px 36px;position:relative;box-shadow:var(--sh)}.strip small{display:block}.strip div::before{content:"";position:absolute;left:14px;top:19px;width:10px;height:10px;border-radius:50%;background:var(--line)}
.strip .st-ok::before{background:var(--ok);box-shadow:0 0 0 4px var(--okbg)}.strip .st-err::before{background:var(--err);box-shadow:0 0 0 4px var(--errbg)}.strip .st-warn::before{background:var(--acc2);box-shadow:0 0 0 4px var(--warnbg)}
.progress{height:8px;background:var(--panel2);border-radius:99px;overflow:hidden;border:1px solid var(--line)}.progress i{display:block;height:100%;background:var(--acc);border-radius:99px}
.steps{display:flex;gap:8px;margin:0 0 18px;flex-wrap:wrap}.steps span{padding:6px 14px;border-radius:99px;background:var(--panel2);border:1px solid var(--line);color:var(--mute);font-weight:600;font-size:13px}.steps span.on{background:var(--acc-soft);color:var(--acc);border-color:transparent}
.drop{border:2px dashed var(--line);border-radius:var(--r);padding:28px;text-align:center;background:var(--panel2)}.drop:hover{border-color:var(--acc)}
.chips{display:flex;gap:10px;flex-wrap:wrap}.chips label{margin:0;cursor:pointer}.chips input{position:absolute;opacity:0}.chips span{display:flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid var(--line);border-radius:var(--rs);background:var(--panel);color:var(--ink);font-weight:600}.chips input:checked+span{border-color:var(--acc);background:var(--acc-soft);color:var(--acc)}.chips input:focus-visible+span{outline:2px solid var(--acc)}
/* toasts + dialogs */
.toasts{position:fixed;top:14px;right:14px;z-index:100;display:flex;flex-direction:column;gap:8px;max-width:min(420px,calc(100vw - 28px))}.toast{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--ok);border-radius:var(--rs);padding:12px 14px;box-shadow:0 10px 30px rgba(0,0,0,.18);cursor:pointer;animation:tin .2s ease-out}.toast.err{border-left-color:var(--err)}.toast.out{opacity:0;transform:translateX(20px);transition:.3s}
@keyframes tin{from{opacity:0;transform:translateY(-8px)}}
dialog{border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--ink);padding:0;box-shadow:0 20px 60px rgba(0,0,0,.35)}dialog::backdrop{background:rgba(8,12,22,.55);backdrop-filter:blur(2px)}
.dlg{width:min(400px,92vw);padding:22px}.dlg p{margin:0 0 18px;font-size:15px}.dlgbtn{display:flex;justify-content:flex-end;gap:10px}
.cmd{width:min(560px,94vw);margin-top:12vh;padding:10px}.cmd input{border:0;border-bottom:1px solid var(--line);border-radius:0;font-size:16px;box-shadow:none!important;padding:12px}#cmdList{max-height:50vh;overflow:auto;padding:6px 0}#cmdList a{display:block;padding:10px 12px;border-radius:var(--rs);color:var(--ink);text-decoration:none}#cmdList a.on,#cmdList a:hover{background:var(--acc-soft);color:var(--acc)}.cmd small{display:block;padding:8px 12px 2px}
/* login / auth */
.login{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(1200px 500px at 80% -10%,var(--acc-soft),transparent),var(--bg)}
.login .box,.authform .box{width:min(430px,100%);background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:30px;box-shadow:var(--sh)}.box h1{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.auth{min-height:100vh;display:grid;grid-template-columns:minmax(320px,1.05fr) 1fr}.authform{display:grid;place-items:center;padding:24px;background:var(--bg)}
.auth-side{background:linear-gradient(150deg,#0b3f3a,#0f766e 60%,#14b8a6);color:#eafffb;padding:48px;display:flex;flex-direction:column;justify-content:center;gap:20px;position:relative;overflow:hidden}.auth-side::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-140px;bottom:-140px;background:rgba(255,255,255,.07)}
.auth-side .logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.auth-side .mark{background:#fff;color:#0f766e}.auth-side h2{font-size:30px;line-height:1.15;margin:0;letter-spacing:-.02em;max-width:460px}.auth-side ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}.auth-side li{display:flex;gap:10px;align-items:center}.auth-side small{color:rgba(234,255,251,.75)}
.tabs{display:flex;background:var(--panel2);border:1px solid var(--line);border-radius:var(--rs);padding:4px;margin:14px 0 18px;gap:4px}.tabs a{flex:1;text-align:center;padding:8px 6px;text-decoration:none;color:var(--mute);border-radius:7px;font-size:13px;font-weight:600}.tabs a.on{background:var(--panel);color:var(--acc);box-shadow:var(--sh)}
/* plans, qr, invoice lines */
.plans{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.plan{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--sh)}.plan.cur{border-color:var(--acc);box-shadow:0 0 0 3px var(--acc-soft)}
.plan .pr{font-size:32px;font-weight:800;letter-spacing:-.03em}.plan .pr small{font-size:13px;font-weight:500}.plan ul{margin:8px 0 12px;padding-left:18px;color:var(--mute);display:grid;gap:3px}
.qr{display:grid;place-items:center;padding:16px;background:#fff;border-radius:14px;width:fit-content;margin:12px auto;border:1px solid var(--line)}
.lines input,.lines select{padding:6px 8px;min-height:36px}.lines td{padding:5px}.lines .x{background:transparent;border:0;color:var(--err);font-size:20px;padding:0 8px;min-height:34px}
.tot{display:flex;gap:28px;justify-content:flex-end;flex-wrap:wrap;padding-top:14px}.tot div{text-align:right}.tot small{display:block}
.chart{width:100%;height:auto}.chart text{fill:var(--mute);font-size:11px}.legend{display:flex;gap:14px;font-size:13px;color:var(--mute)}.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px}
code.sec{background:var(--panel2);border:1px solid var(--line);padding:8px 12px;border-radius:var(--rs);display:block;word-break:break-all;margin:8px 0;font:12.5px ui-monospace,Menlo,Consolas,monospace}
.bnav,.scrim{display:none}
@media(max-width:1100px){.cmdbtn{min-width:0}.cmdbtn span,.cmdbtn kbd{display:none}.cmdbtn{width:38px;padding:0;justify-content:center}}
@media(max-width:900px){
 .auth{grid-template-columns:1fr}.auth-side{padding:26px 22px}.auth-side h2{font-size:22px}.auth-side ul,.auth-side small{display:none}
 body{padding-bottom:calc(66px + env(safe-area-inset-bottom))}.main{margin-left:0}.side{transform:translateX(-100%);width:min(300px,86vw)!important;box-shadow:0 0 40px rgba(0,0,0,.3)}.side.open{transform:none}
 html.min .side .nv span,html.min .side .grp,html.min .sidecard{display:revert}html.min .nv{justify-content:flex-start}
 .scrim.on{display:block;position:fixed;inset:0;background:rgba(8,12,22,.5);z-index:25}
 .burger{display:inline-grid}.collapse{display:none}.top{padding:8px 12px;padding-top:calc(8px + env(safe-area-inset-top))}.who div{display:none}.bsw{flex:1;min-width:0}.bsw select{min-width:0;width:100%}
 .page{padding:16px 12px 24px}.banner{padding:8px 12px}h1{font-size:20px}.kpi b{font-size:20px}.bar .btn,.bar button{flex:1 1 auto}
 input,select,textarea,button,.btn{font-size:16px;min-height:44px}.btn.sm,button.sm{min-height:36px;font-size:14px}
 .bnav{display:flex;position:fixed;left:0;right:0;bottom:0;background:var(--panel);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);z-index:22}
 .bnav a{flex:1;text-align:center;padding:8px 2px 7px;font-size:11px;color:var(--mute);text-decoration:none;display:flex;flex-direction:column;align-items:center;gap:2px}.bnav a.on{color:var(--acc);font-weight:700}
 th,td{padding:9px 8px}.lines td{min-width:92px}.lines td:first-child{min-width:150px}.toasts{top:auto;bottom:78px;right:10px;left:10px;max-width:none}.panel{padding:14px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media print{.side,.top,.bnav,.bar,.banner,.toasts{display:none!important}.main{margin:0}body{background:#fff}}