:root{--app-max-width: 1100px}body{font-family:Roboto,sans-serif;background:#fff;margin:0;color:#222}.app-container{max-width:var(--app-max-width);margin:0 auto}.calc-card{border:1px solid #ddd;padding:1rem;margin:.5rem;background:#fff;box-shadow:0 1px #0000000f}.row{display:flex;gap:1rem;align-items:center;margin-bottom:.75rem;flex-wrap:wrap}.label{width:120px;font-weight:700}.value-input{width:100px;padding:.25rem;border:1px solid #ccc;border-radius:3px}.slider{flex:1}.status{font-weight:700;margin-bottom:.5rem}.left-column{min-width:320px;max-width:420px}.ui-right{flex:1;min-width:320px}.controls-wrap{display:flex;gap:1rem;align-items:flex-start}.btn{padding:.5rem 1rem;background:#eee;border-radius:6px;border:1px solid #ccc;cursor:pointer}