:root{--color-primary: #3498db;--color-primary-hover: #2980b9;--color-primary-light: #d6eaf8;--color-primary-bg: #e3f2fd;--color-success: #27ae60;--color-success-hover: #229954;--color-success-light: #d5f4e6;--color-danger: #e74c3c;--color-danger-hover: #c0392b;--color-danger-light: #fadbd8;--color-warning-bg: #fff3cd;--color-warning-border: #ffc107;--color-warning-text: #856404;--color-text: #2c3e50;--color-text-secondary: #34495e;--color-text-muted: #7f8c8d;--color-text-light: #95a5a6;--color-border: #e0e0e0;--color-border-light: #f0f0f0;--color-bg-page: #0f1118;--color-bg-surface: white;--color-bg-muted: #f8f9fa;--color-bg-input-disabled: #f5f5f5;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-pill: 20px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--color-bg-page);color:var(--color-text);line-height:1.6;min-height:100vh}button{font-family:inherit}a{color:inherit;text-decoration:none}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.container-md{max-width:1000px}.container-sm{max-width:800px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.page-header h1{margin:0;color:var(--color-text)}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.625rem .7rem;border:none;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s;text-decoration:none}.btn lucide-icon{height:16px}.btn:disabled,.btn.disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:#ecf0f1;color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:#bdc3c7}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--color-danger-hover)}.btn-success{background:var(--color-success);color:#fff}.btn-success:hover:not(:disabled){background:var(--color-success-hover)}.btn-send{background:var(--color-primary);color:#fff}.btn-send:hover:not(:disabled){background:var(--color-primary-hover)}.btn-cancel{background:var(--color-text-light);color:#fff}.btn-cancel:hover:not(:disabled){background:var(--color-text-muted)}.btn-sm{padding:.375rem .75rem;font-size:.8125rem}.btn-sm lucide-icon{height:14px}.btn-link{background:none;color:var(--color-primary);padding:0}.btn-link:hover{text-decoration:underline}.btn-icon{background:none;border:none;cursor:pointer;padding:.25rem;opacity:.6;transition:opacity .2s}.btn-icon:hover{opacity:1}.form-group{margin-bottom:1rem}.form-group label{display:block;font-weight:500;color:var(--color-text-secondary);font-size:.875rem}.form-control{width:100%;padding:.625rem;border:1px solid #ddd;border-radius:var(--radius-sm);font-size:.9375rem;box-sizing:border-box;transition:border-color .2s}.form-control:focus{outline:none;border-color:var(--color-primary)}.form-control.invalid{border-color:var(--color-danger)}.form-control:disabled{background:var(--color-bg-input-disabled);cursor:not-allowed}textarea.form-control{resize:vertical;font-family:inherit}.field-error{color:var(--color-danger);font-size:.75rem;margin-top:.25rem;display:block}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:1.5rem}@media (max-width: 600px){.form-row{grid-template-columns:1fr}}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-dialog{background:#fff;border-radius:var(--radius-lg);width:100%;max-width:500px}.modal-dialog-header{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;border-bottom:1px solid var(--color-border-light);border-radius:var(--radius-lg) var(--radius-lg) 0 0}.modal-dialog-header h2{margin:0;font-size:1.125rem;color:var(--color-text)}.modal-dialog-close{background:none;border:none;cursor:pointer;color:var(--color-text-light);padding:.25rem;display:flex;align-items:center}.modal-dialog-close:hover{color:var(--color-text)}.modal-dialog-body{padding:1.5rem}.modal-dialog-footer{display:flex;justify-content:flex-end;gap:.75rem;padding:1rem 1.5rem;border-top:1px solid var(--color-border-light);background:#fafbfc;border-radius:0 0 var(--radius-lg) var(--radius-lg)}.card-base{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.5rem;transition:box-shadow .2s}.card-base:hover{box-shadow:var(--shadow-md)}.badge{display:inline-flex;align-items:center;padding:.375rem .75rem;border-radius:var(--radius-pill);font-size:.875rem;font-weight:600}.badge-draft{background:#f0f0f0;color:var(--color-text-muted)}.badge-sent{background:var(--color-primary-light);color:var(--color-primary-hover)}.badge-paid{background:var(--color-success-light);color:var(--color-success)}.badge-cancelled{background:var(--color-danger-light);color:var(--color-danger)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#bdc3c7;border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-light)}@media (max-width: 768px){body{font-size:14px}}.invoice-page .header-actions{display:flex;gap:.75rem}.invoice-page .form-container{background:#fff;border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-sm)}.invoice-page .form-section{margin-bottom:2rem;padding-bottom:.5rem;border-bottom:1px solid var(--color-border-light)}.invoice-page .form-section:last-of-type{border-bottom:none}.invoice-page .form-section h2{margin:0 0 1.5rem;font-size:1.25rem;color:var(--color-text)}.invoice-page .section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.invoice-page .section-header h2{margin:0}.invoice-page .form-row{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.invoice-page .form-group{display:flex;flex-direction:column;gap:.5rem}.invoice-page .form-actions{margin-top:2rem}.container .loading{text-align:center;padding:4rem;font-size:1.125rem;color:var(--color-text-muted)}