:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--secondary-color: #64748b;--sidebar-bg: #0f172a;--sidebar-text: #e2e8f0;--sidebar-active: #3b82f6;--bg-body: #f1f5f9;--bg-card: #ffffff;--text-main: #1e293b;--text-body: #334155;--text-muted: #94a3b8;--border-color: #e2e8f0;--danger-color: #ef4444;--success-color: #10b981;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1)}*{box-sizing:border-box}body{font-family:Inter,Segoe UI,Helvetica Neue,sans-serif;background-color:var(--bg-body);color:var(--text-body);margin:0;padding:0;line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{color:var(--text-main);margin-top:0;font-weight:600}.container-fluid{padding:20px}.card{background-color:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);padding:24px;margin-bottom:24px}button,.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:var(--radius-md);font-weight:500;font-size:.95rem;cursor:pointer;transition:all .2s ease;border:none;text-decoration:none}.btn-primary,button[type=submit]{background-color:var(--primary-color);color:#fff}.btn-primary:hover,button[type=submit]:hover{background-color:var(--primary-hover);box-shadow:0 4px 12px #2563eb33}.btn-secondary{background-color:#fff;border:1px solid var(--border-color);color:var(--text-body)}.btn-secondary:hover{background-color:#f8fafc;border-color:#cbd5e1}.btn-sm{padding:6px 12px;font-size:.8rem;border-radius:var(--radius-sm);min-height:auto!important}.btn-outline{background-color:transparent;border:1px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background-color:#eff6ff}.input-group{margin-bottom:20px}label{display:block;font-size:.875rem;font-weight:500;color:var(--text-main);margin-bottom:8px}input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--radius-md);font-family:inherit;font-size:.95rem;color:var(--text-body);background-color:#fff;transition:border-color .2s,box-shadow .2s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.table-container{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius-md);border:1px solid var(--border-color);background:#fff}.data-table{width:100%;border-collapse:separate;border-spacing:0;margin-top:0}.data-table th{background-color:#f8fafc;color:var(--secondary-color);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;padding:12px 16px;border-bottom:1px solid var(--border-color);text-align:left}.data-table td{padding:16px;border-bottom:1px solid var(--border-color);vertical-align:middle;font-size:.95rem}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover td{background-color:#f8fafc}@media (max-width: 768px){.responsive-table{border:none}.responsive-table thead{display:none}.responsive-table,.responsive-table tbody,.responsive-table tr,.responsive-table td{display:block;width:100%}.responsive-table tr{margin-bottom:15px;border:1px solid var(--border-color);border-radius:var(--radius-md);background:#fff;box-shadow:var(--shadow-sm);padding:10px 0}.responsive-table td{text-align:right;padding:10px 15px;border-bottom:1px solid #f1f5f9;position:relative;display:flex;justify-content:space-between;align-items:center}.responsive-table td:last-child{border-bottom:none}.responsive-table td:before{content:attr(data-label);font-weight:600;color:var(--secondary-color);font-size:.8rem;text-transform:uppercase;margin-right:15px;text-align:left}}@media (max-width: 768px){.container-fluid{padding:15px}button,.btn,input,select{min-height:44px}.card{padding:16px}.form-grid{display:flex;flex-direction:column;gap:15px}}.status-badge{display:inline-block;padding:4px 10px;border-radius:9999px;font-size:.75rem;font-weight:600;text-transform:uppercase}.status-paid,.status-active{background-color:#dcfce7;color:#166534}.status-pending,.status-inactive{background-color:#fee2e2;color:#991b1b}.status-info{background-color:#e0f2fe;color:#075985}