.title-wrapper {
  width: 90%;
  margin: 2em auto;
}

#title {
  font-size: 2.5em;
}

#under-line {
  height: 4px;
  width: 340px;
  background-color: #ff8c00;
  float: left;
  position: relative;
  bottom: 40px;
  transform: skewX(-45deg);
}

#contact-main {
  width: 90%;
  margin: 3em auto;
}

.contact-text {
  width: 75%;
  margin-left: 27%;
  font-size: 1.1em;
}

#mail-address img {
  margin-left: 2em;
  height: 30px;
}

.required {
  width: 5%;
  text-align: center;
  font-size: small;
  color: white;
  border-radius: 15%;
  background-color: red;
  align-self: center;
  margin-left: 1em;
}

.required-contact-content {
  width: 5%;
  text-align: center;
  font-size: small;
  color: white;
  border-radius: 15%;
  background-color: red;
  align-self: flex-start;
  margin-left: 1em;
  margin-top: 2em;
}

.form-text {
  width: 45%;
  align-self: center;
  float: right;
  margin-left: auto;
}

.input-text {
  height: 1.5em;
  width: 100%;
  border: 0.5px solid #9095a0;
}

.input-textarea {
  width: 100%;
  height: 12em;
  margin-top: 2em;
  resize: vertical;
  border: 0.5px solid #9095a0;
}

.privacy-contents-text {
  margin-left: 1em;
}

.content-wrap {
  width: 60%;
  display: flex;
}

.contact-submit {
  margin-left: 25%;
  height: 2.5em;
  width: 6em;
  border-radius: 5%;
  background-color: #4d7fdc;
  border: 2px solid #2362d7;
  color: white;
  font-size: 1em;
}

.privacy-contents-check {
  width: 2em;
  height: 2em;
  padding: 0;
  margin: 0;
}

.error-text-area {
  display: hidden;
  margin: auto;
}

.form-invalid {
  color: #f50000;
  font-size: 12px;
}

.input-invalid {
  border: 2px solid #f50000;
}

.dialog {
  height: 100%;
  width: 100%;
  position: fixed;
  top: 50%;
  left: 0;
  display: none;
  z-index: 10;
}
.dialog_bg {
  background-color: rgb(255, 255, 255);
  height: 100vh;
  width: 100vw;
  top: 0;
  position: fixed;
  z-index: 5;
}

.contact-done-text {
  margin-top: 1em;
  text-align: center;
  font-size: 1.1em;
}

.contact-error-text {
  margin-top: 1em;
  text-align: center;
  font-size: 1.1em;
}

.footer-style {
  margin-top: 3em;
}

.footer-error-style {
  margin-top: 9.6em;
}

.footer-bad-style {
  margin-top: 8em;
}

.btn-click {
  background-color: #9095a0;
  border: 2px solid #84888f;
}

@media screen and (max-width: 1024px) {
  #under-line {
    width: 300px;
  }

  .contact-text {
    width: 75%;
    margin-left: 22%;
  }

  .input-textarea {
    height: 10em;
  }

  .required {
    width: 6%;
  }

  .required-contact-content {
    width: 6%;
  }

  .privacy-contents-text {
    margin-left: 0.5em;
  }

  .privacy-contents-check {
    width: 1.6em;
    height: 1.6em;
  }

  .contact-submit {
    margin-left: 30%;
  }

  .content-wrap {
    width: 75%;
  }

  .contact-error-text {
    margin-top: 3em;
  }

  .footer-style {
    margin-top: 5.5em;
  }

  .footer-bad-style {
    margin-top: 6.05em;
  }

  .footer-error-style {
    margin-top: 7.7em;
  }
}

@media screen and (min-width: 1600px) {
  .input-text {
    height: 1.6em;
  }

  .required {
    width: 4%;
  }

  .required-contact-content {
    width: 4%;
  }

  .contact-error-text {
    margin-top: 2.4em;
    font-size: 1.3em;
  }

  .footer-style {
    margin-top: 3.7em;
  }

  .footer-bad-style {
    margin-top: 3.7em;
  }

  .footer-error-style {
    margin-top: 5.65em;
  }
}

@media screen and (min-width: 1920px) {
  #title {
    font-size: 3em;
  }

  #under-line {
    width: 400px;
  }

  .contact-text {
    font-size: 2em;
  }

  #mail-address img {
    margin-left: 2em;
    height: 60px;
  }

  .contact-text {
    font-size: x-large;
  }

  .form-invalid {
    font-size: medium;
  }

  .input-text {
    height: 2.4em;
  }

  .input-textarea {
    height: 15em;
    margin-top: 3em;
  }

  .required {
    width: 5%;
    font-size: large;
  }

  .required-contact-content {
    width: 5%;
    font-size: large;
  }

  .privacy-contents-check {
    width: 2.8em;
    height: 2.8em;
  }

  .contact-done-text {
    margin-top: 1.5em;
    font-size: 1.4em;
  }

  .contact-error-text {
    margin-top: 2.4em;
    font-size: 1.6em;
  }

  .footer-style {
    margin-top: 3.3em;
  }

  .footer-bad-style {
    margin-top: 5.2em;
  }

  .footer-error-style {
    margin-top: 7.6em;
  }
}

@media screen and (min-width: 2560px) {
  #under-line {
    width: 420px;
  }

  .contact-text {
    font-size: 2em;
  }

  .form-invalid {
    font-size: large;
  }

  .input-text {
    font-size: 0.6em;
  }

  .input-textarea {
    font-size: 0.8em;
    height: 16em;
  }

  .required {
    width: 5%;
    font-size: x-large;
  }

  .required-contact-content {
    width: 5%;
    font-size: x-large;
  }

  .privacy-contents-check {
    width: 4em;
    height: 4em;
  }

  .contact-done-text {
    margin-top: 2.5em;
    font-size: 2em;
  }

  .contact-error-text {
    margin-top: 3.5em;
    font-size: 2.2em;
  }

  .footer-style {
    margin-top: 8.1em;
  }

  .footer-bad-style {
    margin-top: 10.8em;
  }

  .footer-error-style {
    margin-top: 14.1em;
  }
}

@media screen and (min-width: 3840px) {
  #title {
    font-size: 6em;
  }

  #under-line {
    height: 10px;
    width: 800px;
  }

  .contact-text {
    font-size: 3em;
  }

  #mail-address img {
    margin-left: 2em;
    height: 100px;
  }

  .form-invalid {
    font-size: 0.6em;
  }

  .input-text {
    font-size: 0.6em;
  }

  .input-textarea {
    font-size: 0.8em;
    height: 16em;
  }

  .required {
    width: 4.8%;
    font-size: 0.7em;
  }

  .required-contact-content {
    margin-top: 2.2em;
    width: 4.8%;
    font-size: 0.7em;
  }

  .privacy-contents-check {
    width: 5em;
    height: 5em;
  }

  .contact-done-text {
    margin-top: 2em;
    font-size: 2.7em;
  }

  .contact-error-text {
    margin-top: 3em;
    font-size: 2.9em;
  }

  .footer-style {
    margin-top: 8.6em;
  }

  .footer-bad-style {
    margin-top: 13.3em;
  }

  .footer-error-style {
    margin-top: 17.6em;
  }
}