:root{--primary-color: #079883;--primary-light: #34dac4;--primary-dark: #06514d;--secondary-color: #4ddfd8;--secondary-light: #5fd3d7;--secondary-dark: #28b9d9;--success-color: #10B981;--success-light: #D1FAE5;--danger-color: #EF4444;--danger-light: #FEE2E2;--warning-color: #F59E0B;--warning-light: #FEF3C7;--neutral-50: #F9FAFB;--neutral-100: #F3F4F6;--neutral-200: #E5E7EB;--neutral-300: #D1D5DB;--neutral-400: #9CA3AF;--neutral-500: #6B7280;--neutral-600: #4B5563;--neutral-700: #374151;--neutral-800: #1F2937;--neutral-900: #111827;--bg-primary: #FFFFFF;--bg-secondary: #F9FAFB;--bg-tertiary: #F3F4F6;--text-primary: #111827;--text-secondary: #4B5563;--text-tertiary: #9CA3AF;--border-color: #E5E7EB;--border-color-light: #F3F4F6;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--transition-fast: .15s ease-in-out;--transition-base: .25s ease-in-out;--transition-slow: .35s ease-in-out}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-secondary);color:var(--text-primary);line-height:1.5}h1{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-lg)}h2{font-size:1.375rem;font-weight:600;color:var(--text-primary)}h3{font-size:1.125rem;font-weight:600;color:var(--text-primary)}p,a{color:var(--text-secondary);font-size:1rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-md) var(--spacing-lg);border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);text-decoration:none;min-height:44px;min-width:44px}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn:active{transform:translateY(0)}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-secondary{background-color:var(--secondary-color);color:#fff}.btn-secondary:hover{background-color:var(--secondary-dark)}.btn-danger{background-color:var(--danger-color);color:#fff}.btn-danger:hover{background-color:#dc2626}.card{background-color:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);transition:all var(--transition-base)}.card:hover{shadow:var(--shadow-md);border-color:var(--primary-color)}#app{min-height:100vh;padding:var(--spacing-2xl);max-width:1200px;margin:0 auto}h1{text-align:center;margin-bottom:var(--spacing-2xl);background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.date{display:flex;justify-content:center;text-align:center;margin-bottom:var(--spacing-2xl)}.date h2{color:var(--secondary-dark);margin:0}.currency-selector{display:flex;align-items:center;justify-content:center;gap:var(--spacing-md);margin-bottom:var(--spacing-2xl);padding:var(--spacing-md);background:var(--card-bg);border-radius:var(--border-radius);box-shadow:var(--shadow-sm)}.currency-selector label{font-weight:600;color:var(--text-secondary)}.currency-selector select{padding:var(--spacing-sm) var(--spacing-md);border:2px solid var(--primary-color);border-radius:var(--border-radius);background-color:var(--card-bg);color:var(--primary-color);font-size:1rem;cursor:pointer;transition:border-color .3s ease}.currency-selector select:hover{border-color:var(--secondary-color)}.currency-selector select:focus{outline:none;border-color:var(--secondary-color);box-shadow:0 0 0 3px #6633991a}.financial-overview{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-2xl)}.financial-overview .card{text-align:center;display:flex;flex-direction:column;justify-content:center}.financial-overview h2{font-size:1rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);margin-bottom:var(--spacing-md);font-weight:500}.amount{font-size:2rem;font-weight:700;color:var(--primary-color);margin:0}#totalDebt{color:#dc3545}.actions{display:flex;flex-wrap:wrap;gap:var(--spacing-lg);justify-content:center}.actions .btn{min-width:200px;box-shadow:var(--shadow-md)}.actions .btn:hover{box-shadow:var(--shadow-lg)}.chart-container{background:var(--card-bg);border-radius:var(--border-radius);padding:var(--spacing-2xl);margin-bottom:var(--spacing-2xl);box-shadow:var(--shadow-md);max-width:600px;margin-left:auto;margin-right:auto}.chart-container h2{text-align:center;margin-bottom:var(--spacing-xl);color:var(--text-primary);font-size:1.25rem}#transactionChart{max-height:400px}@media(max-width:768px){#app{padding:var(--spacing-lg)}h1{font-size:1.5rem;margin-bottom:var(--spacing-xl)}.currency-selector{flex-direction:column;align-items:stretch;gap:var(--spacing-sm)}.currency-selector select{width:100%}.financial-overview{grid-template-columns:1fr;gap:var(--spacing-md)}.actions{flex-direction:column}.actions .btn{width:100%;min-width:unset}.chart-container{padding:var(--spacing-xl);margin-bottom:var(--spacing-xl)}#transactionChart{max-height:300px}}@media(max-width:480px){#app{padding:var(--spacing-md)}h1{font-size:1.25rem;margin-bottom:var(--spacing-lg)}.currency-selector{flex-direction:column;align-items:stretch;padding:var(--spacing-sm)}.currency-selector select{font-size:16px;min-height:44px}.financial-overview{grid-template-columns:1fr;gap:var(--spacing-sm)}.financial-overview .card{padding:var(--spacing-lg)}.amount{font-size:1.5rem}.actions{flex-direction:column;gap:var(--spacing-sm)}.actions .btn{width:100%;min-width:unset;font-size:.9rem;padding:var(--spacing-md)}.chart-container{padding:var(--spacing-lg);margin:0 calc(-1 * var(--spacing-md));border-radius:0}#transactionChart{max-height:250px}}@media(prefers-color-scheme:dark){body{background-color:var(--neutral-900);color:var(--neutral-100)}.card{background-color:var(--neutral-800);border-color:var(--neutral-700)}h2,h3{color:var(--neutral-100)}p,a{color:var(--neutral-300)}}.app-footer{margin-top:4rem;padding:2rem 0 1rem;text-align:center;border-top:2px solid var(--primary-color)}.app-footer p{margin-bottom:.5rem;color:var(--text-secondary);font-size:.9rem}.footer-links{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap}.footer-links a{color:var(--primary-color);text-decoration:none;font-weight:500;transition:color .3s ease}.footer-links a:hover{color:var(--secondary-color);text-decoration:underline}.footer-links .separator{color:var(--text-secondary)}