:root{--orange: #FC7A03;--orange-light: #FDA655;--dark: #0b1524;--gray: #6b7280;--border: #e5e7eb;--green: #16a34a;--red: #dc2626;--bg: #f5f6f8;color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--dark);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-tap-highlight-color:transparent;overscroll-behavior-y:contain}#app{min-height:100vh;min-height:100dvh}input,button,select,textarea{font-family:inherit;font-size:16px}button{cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:14px;padding:16px;font-size:17px;font-weight:600;transition:transform .1s ease,opacity .15s ease}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;pointer-events:none}.btn-primary{background:linear-gradient(135deg,var(--orange-light),var(--orange));color:#fff}.btn-income{background:#ecfdf5;color:var(--green);border:1.5px solid #bbf7d0}.btn-expense{background:#fef2f2;color:var(--red);border:1.5px solid #fecaca}.btn-ghost{background:transparent;color:var(--gray)}.input{width:100%;padding:14px 16px;border-radius:12px;border:1.5px solid var(--border);background:#fff;color:var(--dark);outline:none}.input:focus{border-color:var(--orange)}.card{background:#fff;border-radius:18px;padding:20px;box-shadow:0 1px 3px #0000000f}.label{display:block;font-size:13px;color:var(--gray);margin-bottom:6px}