.gcx-calculator {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    font-family: "copperplate", Sans-serif;
    font-weight: 700;
    color: #000;
}

.gcx-form {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: flex-end;
}

.form-group {
    flex: 1;
    min-width: 150px;
}

.gcx-input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 13px;
    background-color: #fdfdfd;
    color: #111;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #222;
    font-size: 12px;
}

.gcx-price-output {
    color: #fff !important;
    pointer-events: none;
    font-size: 14px;
      background-color: #00603A  !important;
  border-color: #00603A !important;
  border-radius: 6px !important;
}

@media (max-width: 768px) {
    .gcx-form { flex-direction: column; }
    .form-group { width: 100%; }
}

.gcx-calculator .form-group:nth-child(1) { flex: 0 0 calc(24% - 10px); max-width: calc(25% - 10px) ; }
.gcx-calculator .form-group:nth-child(2) { flex: 0 0 calc(24% - 10px); max-width: calc(25% - 10px) ; }
.gcx-calculator .form-group:nth-child(3) { flex: 0 0 calc(24% - 10px); max-width: calc(25% - 10px) ; }
.gcx-calculator .form-group:nth-child(4) { flex: 0 0 calc(24% - 10px); max-width: calc(25% - 10px) ; }

@media (max-width: 768px) {
    .gcx-calculator .form-group:nth-child(1),
    .gcx-calculator .form-group:nth-child(2),
    .gcx-calculator .form-group:nth-child(3),
    .gcx-calculator .form-group:nth-child(4) {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

.gcx-note { margin-top: 8px; color: #666; font-weight: 400; }