.nr-wrapper {
    display: flex;
    justify-content: center;
    margin: 40px 0;
}

.nr-card {
    width: 440px;
    padding: 30px;
    border-radius: 18px;
    background: linear-gradient(135deg, #1d2671, #c33764);
    color: #fff;
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}

.nr-card h2 {
    text-align: center;
    margin-bottom: 20px;
}

.nr-card label {
    display: block;
    margin-top: 12px;
    font-weight: 600;
}

.nr-card input,
.nr-card select {
    width: 100%;
    padding: 12px;
    margin-top: 6px;
    border-radius: 8px;
    border: none;
    font-size: 15px;
}

#div-arfcn, #div-frequency {
    margin-top: 10px;
}

.nr-results {
    margin-top: 18px;
    background: rgba(0,0,0,0.25);
    padding: 15px;
    border-radius: 12px;
}

.nr-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 6px 0;
}

.nr-row span {
    font-weight: 600;
}

.copy-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: #fff;
    padding: 4px 8px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
}

.copy-btn:hover {
    background: rgba(255,255,255,0.35);
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: bold;
}

.fr1 { background: #2ecc71; }
.fr2 { background: #f39c12; }

.nr-error {
    margin-top: 10px;
    text-align: center;
    color: #ffd6d6;
    font-size: 14px;
}