:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-success: #16a34a;--color-warning: #ca8a04;--color-error: #dc2626;--color-text: #1f2937;--color-text-secondary: #6b7280;--color-bg: #ffffff;--color-bg-secondary: #f9fafb;--color-border: #e5e7eb}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--color-text);background-color:var(--color-bg);line-height:1.6}.container{max-width:600px;margin:0 auto;padding:2rem 1rem}.card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:.75rem;padding:1.5rem;box-shadow:0 1px 3px #0000001a}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border-radius:.5rem;border:none;cursor:pointer;transition:all .15s ease;text-decoration:none}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background-color:var(--color-bg-secondary);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background-color:var(--color-border)}.btn-large{padding:1rem 2rem;font-size:1.125rem}.btn-full{width:100%}.text-center{text-align:center}.text-secondary{color:var(--color-text-secondary)}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:1rem;border-radius:.5rem;margin-bottom:1rem}.alert-error{background-color:#fef2f2;border:1px solid #fecaca;color:var(--color-error)}.alert-success{background-color:#f0fdf4;border:1px solid #bbf7d0;color:var(--color-success)}.alert-info{background-color:#eff6ff;border:1px solid #bfdbfe;color:var(--color-primary)}.receipt-preview{background:var(--color-bg-secondary);border-radius:.5rem;padding:1rem}.receipt-preview-item{display:flex;justify-content:space-between;padding:.5rem 0;border-bottom:1px solid var(--color-border)}.receipt-preview-item:last-child{border-bottom:none}.receipt-preview-label{color:var(--color-text-secondary);font-size:.875rem}.receipt-preview-value{font-weight:500}.amount{font-size:1.5rem;font-weight:600;color:var(--color-text)}.status-badge{display:inline-block;padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:500}.status-active{background-color:#dcfce7;color:var(--color-success)}.status-inactive{background-color:#fef3c7;color:var(--color-warning)}.status-error{background-color:#fee2e2;color:var(--color-error)}.header{padding:1rem;border-bottom:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.25rem;font-weight:700;color:var(--color-primary);text-decoration:none}