#shopee-calc-container{background:#fdfdfd;border:1px solid #e0e0e0;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.05);box-sizing:border-box;font-family:Helvetica Neue,Arial,sans-serif;margin:20px auto;max-width:500px;padding:20px}.shopee-calc-title{color:#ee4d2d;font-size:1em;font-weight:700;line-height:1.3;margin-bottom:20px;text-align:center}.calc-row{margin-bottom:15px}.calc-label{color:#333;display:block;font-size:.9em;font-weight:700;margin-bottom:5px}.calc-flex-group{align-items:center;display:flex;width:100%}.calc-input-wrapper{flex:1;position:relative}.calc-input{border:1px solid #ccc;border-radius:4px;box-sizing:border-box;font-size:16px;height:46px;padding:12px 50px 12px 10px;width:100%}.calc-input:focus{border-color:#ee4d2d;outline:none}.calc-suffix{background:transparent;color:#888;font-size:.9em;pointer-events:none;position:absolute;right:12px;top:50%;transform:translateY(-50%)}.jpy-display{color:#ee4d2d;font-size:1em;font-weight:700;margin-left:12px;min-width:80px;white-space:nowrap}.result-box_singa{background:#fff8f5;border:1px dashed #ee4d2d;border-radius:4px;margin-top:20px;padding:15px}.result-row{color:#555;font-size:.9em;font-weight:800;margin-bottom:8px}.result-row,.result-total{display:flex;justify-content:space-between}.result-total{border-top:2px solid #ee4d2d;color:#333;font-size:1.2em;font-weight:700;margin-top:10px;padding-top:10px}.profit-positive{color:#28a745}.profit-negative{color:#dc3545}.details-toggle{color:#666;cursor:pointer;display:block;font-size:.8em;margin-top:10px;text-align:right;text-decoration:underline}.advanced-settings{border-top:1px solid #eee;display:none;margin-top:15px;padding-top:15px}.small-note{color:#999;font-size:.75em;margin-top:5px}