:root{--apple-bg: #f5f5f7;--apple-card: #ffffff;--apple-text: #1d1d1f;--apple-secondary: #86868b;--apple-blue: #0071e3;--apple-green: #30d158;--apple-red: #ff453a;--apple-border: #d2d2d7}*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--apple-bg);color:var(--apple-text);margin:0;padding:0;display:flex;justify-content:center;min-height:100vh}.container{width:100%;max-width:440px;padding:20px}header{text-align:center;padding:40px 0 20px}#balance-container{display:flex;flex-direction:column;align-items:center;gap:8px}#balance-label{font-size:14px;color:var(--apple-secondary);text-transform:uppercase;letter-spacing:.5px}#total-balance{font-size:48px;font-weight:700;margin:0;letter-spacing:-1px}#transaction-form{background:var(--apple-card);padding:24px;border-radius:20px;box-shadow:0 4px 20px #0000000d;display:flex;flex-direction:column;gap:16px;margin-bottom:30px}input,select{width:100%;padding:14px;border:1px solid var(--apple-border);border-radius:12px;font-size:16px;background:#fbfbfd;outline:none;transition:border .2s}input:focus{border-color:var(--apple-blue)}button{background:var(--apple-blue);color:#fff;border:none;padding:14px;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .1s,opacity .2s}button:active{transform:scale(.98)}#list-section{background:var(--apple-card);border-radius:20px;overflow:hidden;box-shadow:0 4px 20px #0000000d}ul{list-style:none;padding:0;margin:0}li{padding:16px 20px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #f2f2f7}li:last-child{border-bottom:none}.item-info{display:flex;flex-direction:column;gap:4px}.item-desc{font-weight:500;font-size:16px}.item-date{font-size:12px;color:var(--apple-secondary)}.amount{font-family:SF Mono,monospace;font-weight:600;font-size:16px}.amount.expense{color:var(--apple-red)}.amount.income{color:var(--apple-green)}.actions{padding:20px;text-align:center}#export-btn{background:transparent;color:var(--apple-blue);font-weight:400}