:root{--bg-color:#0f172a;--bg-gradient:linear-gradient(135deg, #0f172a 0%, #1e293b 100%);--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#3b82f6;--accent-hover:#2563eb;--danger-color:#ef4444;--success-color:#10b981;--glass-bg:#ffffff0d;--glass-border:#ffffff1a;--glass-shadow:0 8px 32px 0 #0000005e;--font-main:"Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background:var(--bg-gradient);color:var(--text-primary);-webkit-font-smoothing:antialiased;justify-content:center;align-items:flex-start;min-height:100vh;padding:2rem;display:flex}#root{width:100%;max-width:1200px}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:16px;padding:2rem}h1,h2,h3{margin-bottom:1rem;font-weight:700}h1{background:linear-gradient(90deg,#60a5fa,#a78bfa);-webkit-text-fill-color:transparent;text-align:center;-webkit-background-clip:text;margin-bottom:2rem;font-size:2.5rem}.btn{background:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:all .2s}.btn:hover{background:var(--accent-hover);transform:translateY(-2px)}.btn-danger{background:var(--danger-color)}.btn-danger:hover{background:#dc2626}.btn-success{background:var(--success-color)}.btn-success:hover{background:#059669}input[type=text]{border:1px solid var(--glass-border);color:#fff;background:#0003;border-radius:8px;outline:none;width:100%;padding:.75rem 1rem;font-size:1rem;transition:border-color .2s}input[type=text]:focus{border-color:var(--accent-color)}.app-container{flex-direction:column;gap:2rem;display:flex}.grid-2{grid-template-columns:1fr 1fr;gap:2rem;display:grid}@media (width<=768px){.grid-2{grid-template-columns:1fr}}.list-item{background:#ffffff05;border:1px solid #0000;border-radius:8px;justify-content:space-between;align-items:center;margin-bottom:.5rem;padding:1rem;transition:all .2s;display:flex}.list-item:hover{border-color:var(--glass-border);background:#ffffff0d}.positive-balance{color:var(--success-color);font-weight:700}.negative-balance{color:var(--danger-color);font-weight:700}.checkbox-label{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:.5rem;display:flex}