*{box-sizing:border-box}body{margin:0;font-family:"Noto Sans Bengali",system-ui,sans-serif;background:#f5f8fa;color:#1c2b33}
.wrap{max-width:960px;margin:auto;padding:16px}header{background:#0b5d7a;color:#fff;padding:14px 16px}header h1{margin:0;font-size:1.3rem}
.card{background:#fff;border-radius:12px;padding:16px;margin:14px 0;box-shadow:0 1px 4px #0001}
.opts{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.opts label{border:2px solid #cfe0e8;border-radius:10px;padding:8px 12px;cursor:pointer}
.opts input{margin-right:6px}.opts label:has(input:checked){border-color:#0b5d7a;background:#e6f3f8}.opts label.off{opacity:.4}
input[type=text],input[type=tel],input[type=number],textarea,select{width:100%;padding:10px;border:1px solid #bcd;border-radius:8px;margin:4px 0 10px;font:inherit}
button,.btn{background:#e8590c;color:#fff;border:0;border-radius:10px;padding:12px 18px;font:inherit;cursor:pointer;text-decoration:none;display:inline-block}
table{width:100%;border-collapse:collapse;font-size:.9rem}td,th{padding:6px;border-bottom:1px solid #e3ebef;text-align:left;vertical-align:top}
.err{background:#fde8e8;color:#9b1c1c;padding:10px;border-radius:8px}.ok{background:#e3f6e8;color:#14532d;padding:10px;border-radius:8px}
footer{text-align:center;padding:20px;color:#567;font-size:.9rem}nav a{color:#fff;margin-right:12px}
@media(max-width:600px){.opts label{flex:1 1 45%}}