:root{--primary:#4f46e5;--primary-hover:#4338ca;--bg-color:#f8fafc;--card-bg:#fff;--text-main:#0f172a;--text-muted:#64748b;--danger:#ef4444;--danger-hover:#dc2626;--border:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{background-color:var(--bg-color);color:var(--text-main);line-height:1.6}.container{max-width:1000px;margin:0 auto;padding:2rem}.header{text-align:center;margin-bottom:2rem}.header h1{color:var(--primary);margin-bottom:.5rem;font-size:2.5rem}.header p{color:var(--text-muted)}.dashboard-grid{grid-template-columns:1fr 1.5fr;align-items:flex-start;gap:2rem;display:grid}@media (width<=768px){.dashboard-grid{grid-template-columns:1fr}}.card{background-color:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:1.5rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a}.card h2{color:var(--text-main);border-bottom:1px solid var(--border);margin-bottom:1.5rem;padding-bottom:.75rem;font-size:1.25rem}.expense-form .form-group{margin-bottom:1rem}.form-row{gap:1rem;display:flex}.form-row .form-group{flex:1}label{color:var(--text-main);margin-bottom:.5rem;font-size:.875rem;font-weight:600;display:block}input,select{border:1px solid var(--border);border-radius:8px;outline:none;width:100%;padding:.75rem;font-size:1rem;transition:border-color .2s}input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.btn-primary{background-color:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:.5rem;padding:.75rem;font-size:1rem;font-weight:600;transition:background-color .2s}.btn-primary:hover{background-color:var(--primary-hover)}.stats-card{color:#fff;text-align:center;background:linear-gradient(135deg,#4f46e5 0%,#3b82f6 100%);border-radius:12px;margin-bottom:2rem;padding:1.5rem;box-shadow:0 10px 15px -3px #3b82f64d}.stats-card h3{opacity:.9;font-size:1rem;font-weight:500}.total-amount{margin-top:.5rem;font-size:3rem;font-weight:700}ul{list-style:none}.transaction-item{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:1rem 0;display:flex}.transaction-item:last-child{border-bottom:none}.t-info{flex-direction:column;display:flex}.t-title{color:var(--text-main);font-weight:600}.t-meta{color:var(--text-muted);margin-top:.25rem;font-size:.85rem}.t-actions{align-items:center;gap:1rem;display:flex}.t-amount{color:var(--text-main);font-weight:700}.btn-delete{color:var(--text-muted);cursor:pointer;background-color:#0000;border:none;border-radius:4px;padding:.25rem;font-size:1rem;transition:all .2s}.btn-delete:hover{color:var(--danger);background-color:#ef44441a}.empty-state{text-align:center;color:var(--text-muted);padding:2rem 0}.error-banner{color:var(--danger);text-align:center;background-color:#fee2e2;border-radius:8px;margin-bottom:1rem;padding:1rem;font-weight:500}