:root{--bg:#f4f7fb;--card:#fff;--text:#172033;--muted:#667085;--line:#d9e1ec;--primary:#0b5cab;--primary2:#083f78;--warn:#fff7df;--danger:#fff0f0;--ok:#eaf8ef}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Noto Sans Bengali",sans-serif;line-height:1.5}.container{width:min(1120px,calc(100% - 28px));margin:auto}.hero{background:linear-gradient(135deg,#083f78,#0b5cab);color:#fff;padding:34px 0 28px}.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:12px;font-weight:700;opacity:.85}.hero h1{margin:6px 0 2px;font-size:32px}.hero p{margin:0 0 16px;font-size:16px;opacity:.94}.badges{display:flex;gap:8px;flex-wrap:wrap}.badges span,.pill{border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:5px 10px;font-size:12px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin:18px 0;box-shadow:0 3px 14px rgba(20,40,80,.04)}h2{margin:0 0 14px;font-size:20px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}label{display:flex;flex-direction:column;gap:6px;font-weight:700;font-size:14px}input,select{font:inherit;padding:11px 12px;border:1px solid #c8d2df;border-radius:9px;background:#fff;color:var(--text)}input:focus,select:focus{outline:2px solid rgba(11,92,171,.18);border-color:var(--primary)}.check{display:flex;flex-direction:row;align-items:center;gap:10px}.check input{width:18px;height:18px}.hint{color:var(--muted);font-size:13px;margin:8px 0 0}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 26px}button{border:0;border-radius:9px;padding:12px 18px;font:inherit;font-weight:700;cursor:pointer;background:var(--primary);color:#fff}button:hover{background:var(--primary2)}button.secondary{background:#344054}button.ghost{background:#fff;color:var(--text);border:1px solid var(--line)}.hidden{display:none}.resultHead{display:flex;justify-content:space-between;gap:15px;align-items:center}.resultHead h2{margin:3px 0 0}.resultHead .pill{background:var(--ok);color:#18713b;border-color:#b8e1c7}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}.metric{border:1px solid var(--line);border-radius:10px;padding:13px}.metric small{display:block;color:var(--muted);margin-bottom:3px}.metric strong{font-size:20px}.tableWrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#f8fafc}.amount{font-weight:700;white-space:nowrap}.exact{color:#087443}.warning,.error,.info,.ok{padding:12px 14px;border-radius:9px;margin:8px 0}.warning{background:var(--warn);border:1px solid #ead59a}.error{background:var(--danger);border:1px solid #e7b8b8}.info{background:#eef6ff;border:1px solid #bdd5f0}.ok{background:var(--ok);border:1px solid #b8e1c7}.trailStep{display:grid;grid-template-columns:30px 1fr;gap:10px;margin:10px 0}.num{width:28px;height:28px;border-radius:50%;background:#e8f1fb;color:var(--primary);display:grid;place-items:center;font-weight:700}.rule{font-size:12px;color:var(--muted);margin-top:3px}footer{text-align:center;color:var(--muted);padding:22px;font-size:12px}@media(max-width:760px){.grid,.metrics{grid-template-columns:1fr}.hero h1{font-size:25px}.card{padding:16px}.resultHead{align-items:flex-start;flex-direction:column}}@media print{body{background:#fff}.hero{padding:16px 0;background:#fff;color:#000}.card{box-shadow:none;break-inside:avoid}.actions{display:none}.results.hidden{display:block}.container{width:100%}footer{display:none}}