:root{--font-family:-apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";--color-bg:#f5f5f7;--color-surface:#fff;--color-text-primary:#1d1d1f;--color-text-secondary:#86868b;--color-text-tertiary:#d2d2d7;--color-accent:#0071e3;--color-accent-hover:#0077ed;--color-income:#34c759;--color-expense:#ff3b30;--color-border:#00000014;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 12px 24px #0000001f;--shadow-float:0 20px 40px #00000026;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--transition-fast:.15s cubic-bezier(.25, .1, .25, 1);--transition-smooth:.3s cubic-bezier(.25, .1, .25, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}html,body{width:100%;overflow-x:hidden}.app-container{background-color:var(--color-bg);width:100%;max-width:480px;height:100dvh;box-shadow:var(--shadow-lg);margin:0 auto;position:relative;overflow-x:hidden}@media (width>=481px){body{background-color:#e5e5ea;justify-content:center;align-items:center;min-height:100vh;padding:40px 0;display:flex}.app-container{border:8px solid #fff;border-radius:40px;width:480px;height:850px;overflow:hidden;box-shadow:0 25px 50px -12px #00000040}}.btn{border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast);border:none;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:600;text-decoration:none;display:inline-flex}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:hover{background-color:var(--color-accent-hover)}.btn-secondary{color:var(--color-text-primary);background-color:#0000000d}.btn-secondary:hover{background-color:#00000014}.btn-outline{border:1px solid var(--color-border);color:var(--color-text-primary);background-color:#0000}.btn-outline:hover{border-color:var(--color-text-secondary)}.input-group{margin-bottom:20px}.input-label{color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:13px;font-weight:500;display:block}.input-field{border-radius:var(--radius-md);border:1px solid var(--color-border);background-color:var(--color-surface);width:100%;color:var(--color-text-primary);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);appearance:none;padding:14px 16px;font-family:inherit;font-size:16px}.input-field:focus{border-color:var(--color-accent);outline:none;box-shadow:0 0 0 3px #0071e31a}.card{background-color:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-bottom:16px;padding:24px}h1{letter-spacing:-.5px;margin-bottom:8px;font-size:32px;font-weight:700}h2{letter-spacing:-.3px;margin-bottom:16px;font-size:24px;font-weight:600}h3{font-size:18px;font-weight:600}p{color:var(--color-text-secondary)}.flex-between{justify-content:space-between;align-items:center;display:flex}.flex-center{justify-content:center;align-items:center;display:flex}.text-income{color:var(--color-income)}.text-expense{color:var(--color-expense)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-slide-up{animation:slideUp .4s var(--transition-smooth) forwards}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.animate-fade-in{animation:fadeIn .3s var(--transition-fast) forwards}