*{margin:0;padding:0;box-sizing:border-box}:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#2c3e50}#root{min-height:100vh;padding:2rem 0}button{font-family:inherit}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:linear-gradient(135deg,#667eea,#764ba2)}.login-card{background:#fff;border-radius:20px;box-shadow:0 20px 60px #0000004d;max-width:480px;width:100%;overflow:hidden;animation:slideUp .5s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.login-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:3rem 2rem;text-align:center}.login-header h1{margin:0 0 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.2s}.submit-btn:hover{transform:translateY(-2px)}.submit-btn:active{transform:translateY(0)}.transaction-list{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 2px 8px #0000001a}.transaction-list h2{margin-top:0;color:#2c3e50;margin-bottom:1.5rem}.empty-message{text-align:center;color:#95a5a6;padding:2rem}.transactions{display:flex;flex-direction:column;gap:.75rem}.transaction-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-radius:8px;border-left:4px solid;background:#f8f9fa;transition:transform .2s,box-shadow .2s}.transaction-item:hover{transform:translate(4px);box-shadow:0 2px 8px #0000001a}.transaction-item.income{border-left-color:#667eea}.transaction-item.expense{border-left-color:#f5576c}.transaction-info{flex:1}.transaction-date{font-size:.85rem;color:#7f8c8d;margin-bottom:.25rem}.transaction-details{display:flex;gap:1rem;align-items:center}.transaction-description{font-weight:500;color:#2c3e50}.transaction-category{font-size:.85rem;padding:.25rem .75rem;background:#ecf0f1;border-radius:12px;color:#34495e}.transaction-amount-section{display:flex;align-items:center;gap:1rem}.transaction-amount{font-size:1.25rem;font-weight:700}.transaction-amount.income{color:#667eea}.transaction-amount.expense{color:#f5576c}.delete-btn{width:32px;height:32px;border:none;background:#e74c3c;color:#fff;border-radius:50%;cursor:pointer;font-size:1.5rem;line-height:1;display:flex;align-items:center;justify-content:center;transition:background .3s,transform 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