:root{--color-primary: #6366f1;--color-success: #10b981;--color-danger: #ef4444;--color-warning: #f59e0b;--color-info: #3b82f6;--color-bg: #f8fafc;--color-bg-card: #ffffff;--color-bg-dark: #1e293b;--color-text: #0f172a;--color-text-secondary: #64748b;--color-text-light: #94a3b8;--border-radius: 12px;--border-color: #e2e8f0;--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--transition: .2s ease-in-out}*{margin:0;padding:0;box-sizing:border-box}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(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh}#root{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:var(--spacing-lg)}.app-header{text-align:center;margin-bottom:var(--spacing-xl);padding:var(--spacing-lg) 0;background:linear-gradient(135deg,var(--color-primary),#8b5cf6);color:#fff;border-radius:var(--border-radius);box-shadow:var(--shadow-lg)}.app-header h1{font-size:2.5rem;font-weight:700;margin-bottom:var(--spacing-xs)}.app-header p{font-size:1.1rem;opacity:.9}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-md);margin-bottom:var(--spacing-xl)}.summary-card{background:var(--color-bg-card);border-radius:var(--border-radius);padding:var(--spacing-md);box-shadow:var(--shadow);border-left:4px solid var(--card-color);transition:all var(--transition)}.summary-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.summary-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-sm)}.summary-card-title{font-size:.875rem;color:var(--color-text-secondary);text-transform:uppercase;font-weight:600;letter-spacing:.5px}.summary-card-icon{font-size:2rem}.summary-card-amount{font-size:2rem;font-weight:700;color:var(--card-color)}.form-card{background:var(--color-bg-card);border-radius:var(--border-radius);padding:var(--spacing-lg);box-shadow:var(--shadow);margin-bottom:var(--spacing-xl)}.form-card h2{margin-bottom:var(--spacing-md);color:var(--color-text);font-size:1.5rem}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.form-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.form-group label{font-size:.875rem;font-weight:600;color:var(--color-text-secondary)}.form-group input,.form-group select{padding:var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:1rem;transition:all var(--transition);background:#fff}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #6366f11a}.form-actions{display:flex;gap:var(--spacing-sm)}.btn{padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--border-radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition);display:inline-flex;align-items:center;gap:var(--spacing-xs)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:#4f46e5;transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-success{background:var(--color-success);color:#fff}.btn-success:hover{background:#059669}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-sm{padding:var(--spacing-xs) var(--spacing-sm);font-size:.875rem}.transactions-card{background:var(--color-bg-card);border-radius:var(--border-radius);padding:var(--spacing-lg);box-shadow:var(--shadow);margin-bottom:var(--spacing-xl)}.transactions-card h2{margin-bottom:var(--spacing-md);color:var(--color-text);font-size:1.5rem}.transaction-list{list-style:none}.transaction-item{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md);border-radius:var(--border-radius);margin-bottom:var(--spacing-sm);background:var(--color-bg);border-left:4px solid var(--item-color);transition:all var(--transition)}.transaction-item:hover{transform:translate(4px);box-shadow:var(--shadow-md)}.transaction-item.income{--item-color: var(--color-success)}.transaction-item.expense{--item-color: var(--color-danger)}.transaction-info{flex:1}.transaction-title{font-weight:600;font-size:1.1rem;color:var(--color-text);margin-bottom:4px}.transaction-details{display:flex;gap:var(--spacing-md);font-size:.875rem;color:var(--color-text-secondary)}.transaction-category{background:#6366f11a;padding:2px 8px;border-radius:6px;color:var(--color-primary);font-weight:500}.transaction-amount{font-size:1.25rem;font-weight:700;margin-right:var(--spacing-md)}.transaction-amount.income{color:var(--color-success)}.transaction-amount.expense{color:var(--color-danger)}.transaction-actions{display:flex;gap:var(--spacing-xs)}.empty-state{text-align:center;padding:var(--spacing-xl);color:var(--color-text-secondary)}.empty-state-icon{font-size:4rem;margin-bottom:var(--spacing-md);opacity:.5}.chart-card{background:var(--color-bg-card);border-radius:var(--border-radius);padding:var(--spacing-lg);box-shadow:var(--shadow);margin-bottom:var(--spacing-xl)}.chart-card h2{margin-bottom:var(--spacing-md);color:var(--color-text);font-size:1.5rem}.chart-container{display:flex;justify-content:center;align-items:center;min-height:300px}@media(max-width:768px){.container{padding:var(--spacing-sm)}.app-header h1{font-size:2rem}.app-header p{font-size:1rem}.summary-grid,.form-grid{grid-template-columns:1fr}.transaction-item{flex-direction:column;align-items:flex-start;gap:var(--spacing-sm)}.transaction-amount{margin-right:0}.chart-container{min-height:250px}}@media(max-width:480px){.app-header h1,.summary-card-amount{font-size:1.5rem}.transaction-details{flex-direction:column;gap:var(--spacing-xs)}}