/* BEN – Quick Budget & BOQ planner page. Brand colours only: green / red / gold / white. */
:root{--g:#006A4E;--gd:#00382a;--gl:#0b8f6a;--r:#F42A41;--rd:#c4162b;--au:#C9A14A;--aul:#F5D27A;--ink:#0f2a22;--mut:#566860;--line:#dfe9e4;--soft:#fff}
.bg-body{background:var(--soft);color:var(--ink);font-family:"Noto Sans Bengali",Roboto,system-ui,sans-serif;line-height:1.55;margin:0}
.bg-wrap{width:min(1200px,calc(100% - 32px));margin-inline:auto}
button,input,select{font:inherit}

/* header */
.bg-head{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 6px 20px rgba(0,56,42,.12)}
.bg-head-in{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0}
.bg-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--gd);font-weight:800}.bg-brand img{height:38px}
.bg-head-act{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.bg-link{color:var(--g);font-weight:700;text-decoration:none;font-size:14px}
.bg-lang,.bg-cons{border-radius:99px;padding:7px 16px;font-weight:700;cursor:pointer;font-size:14px}
.bg-lang{background:#fff;border:1.5px solid var(--g);color:var(--g)}
.bg-cons{background:linear-gradient(135deg,var(--r),var(--rd));color:#fff;border:0;box-shadow:0 0 0 2px rgba(245,210,122,.8)}
.bg-flag{display:flex;height:5px}.bg-flag i{flex:1}.bg-flag i:nth-child(1){background:var(--r)}.bg-flag i:nth-child(2){background:var(--au)}.bg-flag i:nth-child(3){background:var(--g)}

/* hero */
.bg-hero{position:relative;color:#fff;padding:46px 0 70px;background:radial-gradient(700px 400px at 85% 20%,rgba(244,42,65,.45),transparent 62%),linear-gradient(135deg,#00513b,#006A4E 55%,#0b8f6a);overflow:hidden}
.bg-hero::before{content:"";position:absolute;inset:0;background:var(--pat);background-size:44px 44px;opacity:.9;pointer-events:none}
.bg-hero .bg-wrap{position:relative}
.bg-hero h1{margin:8px 0 10px;font-size:clamp(28px,4.4vw,46px);line-height:1.18;font-weight:800;max-width:780px}
.bg-hero h1 em{font-style:normal;background:linear-gradient(100deg,#fff,#F5D27A);-webkit-background-clip:text;background-clip:text;color:transparent}
.bg-hero p{max-width:640px;opacity:.95;font-size:17px;margin:0 0 18px}
.bg-eb{display:inline-block;background:rgba(0,0,0,.18);border:1px solid rgba(245,210,122,.6);color:var(--aul);border-radius:99px;padding:4px 14px;font-weight:700;font-size:13px;letter-spacing:.04em}
.bg-badges{display:flex;gap:10px;flex-wrap:wrap}.bg-badges span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);border-radius:99px;padding:5px 14px;font-weight:600;font-size:14px}
.bg-steps{display:flex;gap:6px;margin-top:26px;flex-wrap:wrap}
.bg-steps div{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:12px;padding:7px 12px;font-size:14px;font-weight:600}
.bg-steps i{width:24px;height:24px;border-radius:50%;background:var(--au);color:#3a2800;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:13px}

/* layout */
.bg-grid{display:grid;grid-template-columns:minmax(0,430px) minmax(0,1fr);gap:22px;align-items:start;margin-top:-46px;position:relative;padding-bottom:40px}
@media (max-width:980px){.bg-grid{grid-template-columns:1fr}}
.bg-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 18px;box-shadow:0 14px 36px rgba(0,56,42,.1);margin-bottom:14px}
.bg-card h2{margin:0 0 4px;font-size:18px;color:var(--gd);display:flex;align-items:center;gap:10px}
.bg-card h2 i{width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--au),#8a6a1c);color:#fff;display:grid;place-items:center;font-style:normal;font-size:15px;flex:0 0 30px}
.bg-hint{color:var(--mut);font-size:13px;margin:0 0 12px}
.bg-f{margin-bottom:14px}.bg-f label{display:block;font-weight:700;font-size:14px;margin-bottom:6px;color:var(--gd)}
.bg-f small{display:block;color:var(--mut);font-size:12.5px;margin-top:5px}
.bg-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.bg-in,.bg-sel{width:100%;border:1.5px solid #cfdcd5;border-radius:12px;padding:11px 12px;background:#fff;color:var(--ink);outline:0;transition:border-color .2s,box-shadow .2s}
.bg-in:focus,.bg-sel:focus{border-color:var(--g);box-shadow:0 0 0 4px rgba(0,106,78,.14)}
.bg-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:8px}
.bg-chip{border:1.5px solid #cfdcd5;background:#fff;border-radius:99px;padding:5px 13px;font-weight:700;font-size:13.5px;cursor:pointer;color:var(--g);transition:.18s}
.bg-chip:hover{border-color:var(--g)}.bg-chip.on{background:var(--g);border-color:var(--g);color:#fff}
.bg-conv{background:#fff;border:1px dashed #e0c070;border-radius:10px;padding:8px 11px;font-size:13px;color:#5b4300;margin-top:8px}
.bg-opts{display:grid;gap:8px}
.bg-opt{display:flex;gap:11px;align-items:flex-start;border:1.5px solid #cfdcd5;border-radius:14px;padding:11px 12px;cursor:pointer;background:#fff;transition:.18s;text-align:left}
.bg-opt:hover{border-color:var(--g)}.bg-opt.on{border-color:var(--g);background:linear-gradient(135deg,#fff,#fff);box-shadow:0 0 0 3px rgba(0,106,78,.12)}
.bg-opt b{display:block;color:var(--gd)}.bg-opt small{display:block;color:var(--mut);font-size:12.5px}
.bg-opt .dot{flex:0 0 18px;height:18px;border-radius:50%;border:2px solid #b5c8be;margin-top:3px;position:relative}
.bg-opt.on .dot{border-color:var(--g)}.bg-opt.on .dot::after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--g)}
.bg-opt .rt{margin-left:auto;font-weight:800;color:#8a6a1c;font-size:13px;white-space:nowrap}
.bg-grades{grid-template-columns:1fr}
.bg-step{display:flex;align-items:center;gap:12px}.bg-step button{width:42px;height:42px;border-radius:12px;border:1.5px solid var(--g);background:#fff;color:var(--g);font-size:22px;font-weight:800;cursor:pointer}.bg-step button:hover{background:var(--g);color:#fff}
.bg-step output{flex:1;text-align:center;font-size:20px;font-weight:800;color:var(--gd)}.bg-step output small{display:block;font-size:12.5px;font-weight:500;color:var(--mut);margin:0}
.bg-chk{display:flex;gap:10px;align-items:flex-start;margin-bottom:9px;cursor:pointer;padding:10px 12px;border:1.5px solid #cfdcd5;border-radius:12px}
.bg-chk input{margin-top:4px;accent-color:var(--g);width:18px;height:18px}.bg-chk b{display:block}.bg-chk small{color:var(--mut);font-size:12.5px;display:block}
.bg-preview{background:linear-gradient(135deg,#fff,#fff);border:1px solid #cfe6da;border-radius:12px;padding:10px 12px;font-size:13.5px;margin-top:8px}
.bg-go{width:100%;border:0;cursor:pointer;color:#fff;font-weight:800;font-size:18px;padding:16px;border-radius:16px;background:linear-gradient(135deg,var(--r),var(--rd));box-shadow:0 0 0 2px rgba(245,210,122,.85),0 16px 34px rgba(196,22,43,.4);transition:transform .2s}
.bg-go:hover{transform:translateY(-2px)}
.bg-reset{width:100%;margin-top:8px;border:1.5px solid #cfdcd5;background:#fff;color:var(--mut);border-radius:12px;padding:9px;cursor:pointer;font-weight:600}
.bg-adv summary{cursor:pointer;font-weight:700;color:var(--g);padding:6px 0}
.bg-adv .bg-row{margin-top:8px}.bg-adv label{font-size:13px;font-weight:600}

/* results */
.bg-res{position:relative}
.bg-empty{text-align:center;padding:46px 24px;border:2px dashed #b5c8be;border-radius:20px;background:#fff}
.bg-empty .big{font-size:56px;line-height:1}.bg-empty h3{margin:10px 0 6px;color:var(--gd)}.bg-empty p{color:var(--mut);max-width:420px;margin:0 auto}
.bg-ex{margin-top:16px;display:grid;gap:8px;text-align:left;max-width:440px;margin-inline:auto}
.bg-ex div{display:flex;gap:10px;background:var(--soft);border-radius:12px;padding:9px 12px;font-size:14px;font-weight:600}
.bg-ex i{font-style:normal;color:var(--r);font-weight:800}
.bg-head-res{border-radius:20px;color:#fff;padding:22px;background:radial-gradient(500px 260px at 90% 0,rgba(244,42,65,.5),transparent 60%),linear-gradient(135deg,#00513b,#006A4E);box-shadow:0 18px 40px rgba(0,56,42,.3);border-top:4px solid var(--aul);animation:bgIn .6s both}
@keyframes bgIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.bg-head-res small{color:var(--aul);font-weight:700;letter-spacing:.04em}
.bg-total{font-size:clamp(28px,4.4vw,42px);font-weight:800;line-height:1.15;margin:4px 0}
.bg-sub{opacity:.92;font-size:14.5px}
.bg-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
@media (max-width:560px){.bg-kpis{grid-template-columns:1fr 1fr}}
.bg-kpi{background:#fff;border:1px solid var(--line);border-top:3px solid var(--g);border-radius:14px;padding:12px 12px;box-shadow:0 8px 20px rgba(0,56,42,.07)}
.bg-kpi:nth-child(3n+2){border-top-color:var(--r)}.bg-kpi:nth-child(3n){border-top-color:var(--au)}
.bg-kpi span{display:block;font-size:12.5px;color:var(--mut)}.bg-kpi b{display:block;font-size:20px;color:var(--gd);line-height:1.25}.bg-kpi em{display:block;font-style:normal;font-size:12px;color:var(--mut)}
.bg-warn{border-radius:14px;padding:12px 14px;margin-top:12px;font-size:14px;border:1px solid}
.bg-warn.w{background:#fff;border-color:#e0c070;color:#5b4300}.bg-warn.r{background:#fff;border-color:#fff;color:#a8182b}.bg-warn.g{background:#fff;border-color:#cfe6da;color:var(--gd)}
.bg-tabs{display:flex;gap:6px;overflow:auto;margin:18px 0 0;padding-bottom:4px}
.bg-tab{flex:0 0 auto;border:1.5px solid #cfdcd5;background:#fff;border-radius:99px;padding:8px 16px;font-weight:700;color:var(--g);cursor:pointer;font-size:14px}
.bg-tab.on{background:var(--g);border-color:var(--g);color:#fff}
.bg-pane{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;margin-top:10px;box-shadow:0 10px 26px rgba(0,56,42,.07);animation:bgIn .4s both}
.bg-pane h3{margin:0 0 8px;color:var(--gd);font-size:17px}.bg-pane p{color:#34453e;margin:0 0 10px}
.bg-tw{overflow:auto}
.bg-t{width:100%;border-collapse:collapse;font-size:14px}
.bg-t th{background:linear-gradient(90deg,var(--gd),var(--g));color:#fff;text-align:left;padding:9px 10px;white-space:nowrap}
.bg-t td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.bg-t tr:nth-child(even) td{background:var(--soft)}
.bg-t td.n{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.bg-t tr.grp td{background:#fff;font-weight:800;color:#5b4300}
.bg-t tr.tot td{background:#fff;font-weight:800;color:var(--gd);border-top:2px solid var(--g)}
.bg-t tr.cur td{background:#fff;outline:2px solid var(--au);outline-offset:-2px}
.bg-t tr.click{cursor:pointer}.bg-t tr.click:hover td{background:#fff}
.bg-bar{display:flex;height:16px;border-radius:99px;overflow:hidden;margin:6px 0 12px;background:#e3ece7}
.bg-bar i{display:block}.bg-bar i:nth-child(1){background:var(--g)}.bg-bar i:nth-child(2){background:var(--au)}.bg-bar i:nth-child(3){background:var(--r)}.bg-bar i:nth-child(4){background:#0a3a2d}
.bg-leg{display:flex;gap:12px;flex-wrap:wrap;font-size:13px;margin-bottom:6px}.bg-leg span::before{content:"";display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.bg-leg span:nth-child(1)::before{background:var(--g)}.bg-leg span:nth-child(2)::before{background:var(--au)}.bg-leg span:nth-child(3)::before{background:var(--r)}.bg-leg span:nth-child(4)::before{background:#0a3a2d}
.bg-calc{list-style:none;margin:0;padding:0;display:grid;gap:8px;counter-reset:c}
.bg-calc li{display:flex;gap:11px;background:var(--soft);border-left:4px solid var(--g);border-radius:11px;padding:10px 12px}
.bg-calc li::before{counter-increment:c;content:counter(c);flex:0 0 26px;height:26px;border-radius:50%;background:linear-gradient(135deg,var(--g),var(--gl));color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px}
.bg-calc b{color:var(--gd)}
.bg-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}@media (max-width:700px){.bg-cols{grid-template-columns:1fr}}
.bg-col{border:1px solid var(--line);border-top:4px solid var(--g);border-radius:14px;padding:12px;background:#fff}.bg-col:nth-child(2){border-top-color:var(--au)}.bg-col:nth-child(3){border-top-color:var(--r)}
.bg-col.cur{box-shadow:0 0 0 3px rgba(201,161,74,.55)}.bg-col h4{margin:0 0 4px;color:var(--gd)}.bg-col b{display:block;font-size:19px;color:var(--gd)}.bg-col small{color:var(--mut)}
.bg-next{margin-top:18px;background:linear-gradient(135deg,#00382a,#006A4E);color:#fff;border-radius:20px;padding:20px;border-top:4px solid var(--aul)}
.bg-next h3{margin:0 0 4px;font-size:19px}.bg-next p{opacity:.92;margin:0 0 14px}
.bg-acts{display:flex;gap:9px;flex-wrap:wrap}
.bg-a{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:99px;padding:11px 20px;font-weight:800;cursor:pointer;text-decoration:none;font-size:15px;transition:transform .2s}
.bg-a:hover{transform:translateY(-2px)}
.bg-a.p{background:linear-gradient(135deg,var(--r),var(--rd));color:#fff;box-shadow:0 0 0 2px rgba(245,210,122,.8)}
.bg-a.w{background:var(--aul);color:#3a2800}.bg-a.o{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.bg-note{font-size:13px;color:var(--mut);margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px}
.bg-note b{color:var(--gd)}.bg-note ul{margin:6px 0 0;padding-left:20px}
.bg-foot{background:linear-gradient(135deg,#00382a,#006A4E);color:#fff;padding:22px 0;margin-top:20px;font-size:14px;border-top:5px solid var(--r)}
.bg-toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--gd);color:#fff;border:1.5px solid var(--aul);border-radius:99px;padding:10px 20px;font-weight:700;z-index:90;animation:bgIn .3s both}
.bg-modal{position:fixed;inset:0;background:rgba(0,37,27,.6);display:grid;place-items:center;z-index:80;padding:16px;animation:bgIn .25s both}
.bg-modal>div{background:#fff;border-radius:20px;max-width:480px;width:100%;padding:22px;border-top:5px solid var(--r)}
.bg-modal h3{margin:0 0 6px;color:var(--gd)}.bg-modal .cons-b{margin-top:8px}
@media print{.bg-head,.bg-hero,.bg-form,.bg-tabs,.bg-next,.bg-foot,.bg-toast{display:none!important}.bg-grid{display:block;margin:0}.bg-pane{display:block!important;break-inside:avoid;box-shadow:none}.bg-body{background:#fff}.bg-head-res{box-shadow:none}}