:root{--primary-blue: #0f4c81;--primary-hover: #0a355c;--bg-grey: #f0f2f5;--border-color: #d1d5db;--text-dark: #1f2937;--text-light: #6b7280;--white: #ffffff}body{margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:var(--bg-grey);color:var(--text-dark)}*{box-sizing:border-box}.app-container{min-height:100vh}.navbar{background:var(--primary-blue);color:var(--white);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a;margin-bottom:2rem}.nav-brand h1{margin:0;font-size:1.25rem;font-weight:500}.content{max-width:1000px;margin:0 auto;padding:0 1.5rem}.card{background:var(--white);border-radius:8px;padding:2rem;box-shadow:0 1px 3px #0000000d;border:1px solid #e5e7eb}.card h2{margin-top:0;color:var(--primary-blue);border-bottom:2px solid var(--bg-grey);padding-bottom:1rem;margin-bottom:1.5rem}.card h3{margin:0;font-size:1.1rem;color:var(--text-dark)}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;font-size:.9rem;color:var(--text-dark)}select,input{width:100%;padding:.625rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;background-color:var(--white);transition:border-color .2s}select:focus,input:focus{outline:none;border-color:var(--primary-blue);box-shadow:0 0 0 3px #0f4c811a}.data-table{width:100%;border-collapse:separate;border-spacing:0;margin-bottom:2rem;border:1px solid var(--border-color);border-radius:6px;overflow:hidden;margin-top:1rem}.data-table th,.data-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color)}.data-table th{background:#f8fafc;font-weight:600;color:var(--text-light);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover{background-color:#f9fafb}.small-input{width:100px;padding:.4rem;text-align:right}.effective-rate{font-weight:700;color:var(--primary-blue)}.header-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}button{cursor:pointer;font-family:inherit}.btn-primary{background:var(--primary-blue);color:var(--white);padding:.5rem 1rem;border:none;border-radius:4px;font-size:.9rem;transition:background .2s}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{color:#fffc;text-decoration:none;font-size:.9rem;padding:.5rem 1rem;border:1px solid rgba(255,255,255,.3);border-radius:4px}.btn-secondary:hover{color:var(--white);border-color:var(--white);background:#ffffff1a}.alert{padding:1rem;border-radius:6px;margin-top:1rem;font-weight:500;display:flex;align-items:center}.alert.success{background:#e0e7ff;color:var(--primary-blue);border:1px solid rgba(15,76,129,.2)}.alert.error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}