.nbm-container{max-width:850px;margin:40px auto;font-family:"Arial",sans-serif}.nbm-container h2{text-align:center;margin-bottom:20px;font-size:26px;color:#1f2d3d}.nbm-form{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-bottom:20px}.nbm-form label{grid-column:span 1;font-weight:700}.nbm-form input,.nbm-form select{padding:10px;border:1px solid #ccc;border-radius:8px;width:100%;font-size:16px}#hesapla{grid-column:span 2;background:#244878;color:#fff;border:none;padding:12px;border-radius:8px;font-size:16px;cursor:pointer}#hesapla:hover{background:#1b3b61}#sonuc{margin-top:25px;overflow-x:auto}.nbm-table{width:100%;border-collapse:collapse}.nbm-table th,.nbm-table td{border:1px solid #ddd;padding:10px;text-align:center}.nbm-table th{background-color:#244878;color:#fff}