:root{--bg:#f5f6f8;--card:#fff;--text:#1f2430;--muted:#6b7280;--border:#e4e7ec;--primary:#4f46e5;--primary-hover:#4338ca;--danger:#e11d48}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}.container{max-width:640px;margin:3rem auto;padding:0 1rem}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.5rem;box-shadow:0 1px 3px #0000000f}h1{margin:0 0 1rem;font-size:1.6rem}h2{margin:0 0 1rem;font-size:1.2rem}.nav{gap:.5rem;margin-bottom:1.5rem;display:flex}.nav a{color:var(--muted);border-radius:999px;padding:.4rem .9rem;font-weight:500;text-decoration:none;transition:background .15s,color .15s}.nav a:hover{color:var(--text);background:#eceef2}.nav a.active{background:var(--primary);color:#fff}.form{flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem;display:flex}input,select{border:1px solid var(--border);min-width:120px;color:var(--text);background:#fff;border-radius:8px;flex:1;padding:.55rem .7rem;font-size:.95rem}input:focus,select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #4f46e526}button{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:.55rem 1rem;font-size:.9rem;font-weight:500;transition:background .15s}button:hover{background:var(--primary-hover)}button.secondary{color:var(--text);background:#e4e7ec}button.secondary:hover{background:#d3d8e0}button.small{padding:.3rem .6rem;font-size:.8rem}button.danger{background:var(--danger)}button.danger:hover{background:#be123c}.list{margin:0;padding:0;list-style:none}.list li{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:.5rem;padding:.75rem .25rem;display:flex}.list li:last-child{border-bottom:none}.item-actions{gap:.4rem;display:flex}.price{color:var(--muted);font-size:.85rem}.error{color:var(--danger);background:#fef2f2;border:1px solid #fecaca;border-radius:8px;margin-bottom:1rem;padding:.6rem .8rem;font-size:.9rem}