@charset "UTF-8";
/*===========================
変数
===========================*/
/*===========================
レスポンシブ
===========================*/
/*===========================
reset
===========================*/
* {
  box-sizing: border-box;
}

html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
ul,
ol,
dl,
li,
dt,
dd,
p,
div,
span,
img,
a,
table,
tr,
th,
td {
  margin: 0;
  padding: 0;
  border: 0;
  font-weight: normal;
  font-size: 100%;
  vertical-align: baseline;
}

header,
footer,
nav,
section,
article,
aside,
figure,
figcaption {
  display: block;
}

body {
  line-height: 1;
}

ol,
ul {
  list-style: none;
  list-style-type: none;
}

img {
  width: 100%;
  height: auto;
}

/*===========================
base
===========================*/
html {
  font-size: 62.5%;
}

body {
  background: #16161a;
  color: #94a1b2;
  font-family: "游ゴシック体", YuGothic, "游ゴシック Medium", "Yu Gothic Medium", "游ゴシック", "Yu Gothic", sans-serif;
  font-size: 1.6rem;
  font-weight: 500;
}

a {
  text-decoration: none;
  cursor: pointer;
}

/*===========================
共通クラス
===========================*/
.inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  box-sizing: content-box;
}
@media screen and (max-width: 767px) {
  .inner {
    padding: 0 16px;
  }
}

.section {
  padding-top: 100px;
  padding-bottom: 100px;
}
@media screen and (max-width: 767px) {
  .section {
    padding-top: 70px;
    padding-bottom: 70px;
  }
}

.section-title {
  font-size: 3.2rem;
  font-weight: 700;
  text-align: center;
  color: #fffffe;
}
@media screen and (max-width: 767px) {
  .section-title {
    font-size: 2.7rem;
  }
}

.section-subtitle {
  margin-top: 5px;
  font-size: 2rem;
  font-weight: 700;
  font-family: "Courier", sans-serif;
  text-align: center;
  color: #fffffe;
  opacity: 0.7;
}

.link-button {
  font-size: 2.4rem;
  font-weight: 700;
  display: inline-block;
  background: #7f5af0;
  color: #fffffe;
  border-radius: 4px;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
  width: 300px;
  max-width: 100%;
  height: 72px;
  line-height: 72px;
  text-align: center;
}

.link-button2 {
  font-weight: 700;
  display: inline-block;
  background: #72757e;
  color: #fffffe;
  border-radius: 4px;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
  width: 300px;
  max-width: 100%;
  text-align: center;
  transition: opacity 0.3s ease 0s;
}
@media screen and (min-width: 768px) {
  .link-button2 {
    height: 72px;
    line-height: 72px;
    font-size: 2.4rem;
  }
}
@media screen and (max-width: 767px) {
  .link-button2 {
    font-size: 1.8rem;
    height: 50px;
    line-height: 50px;
    width: 100%;
  }
}
.link-button2.-active {
  background: #7f5af0;
  opacity: 0.7;
}
@media (hover: hover) {
  .link-button2.-active {
    /* hover指定できるPCを想定したスタイル */
  }
  .link-button2.-active:hover {
    opacity: 1;
    cursor: pointer;
  }
}
@media (hover: none) {
  .link-button2.-active {
    /* hoverが使えないタッチ端末を想定した装飾 */
  }
  .link-button2.-active:active {
    opacity: 1;
    cursor: pointer;
  }
}

/*===========================
header
===========================*/
.header {
  background: rgba(114, 117, 126, 0.8);
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
}
@media screen and (min-width: 768px) {
  .header {
    height: 100px;
    line-height: 100px;
  }
}
@media screen and (max-width: 767px) {
  .header {
    height: 70px;
    line-height: 70px;
  }
}

.header_inner {
  display: flex;
  align-items: center;
}

.header_title {
  font-weight: 700;
  font-family: "Courier", sans-serif;
  color: #fffffe;
}
@media screen and (min-width: 768px) {
  .header_title {
    font-size: clamp(16px, 3vw, 40px);
  }
}
@media screen and (max-width: 767px) {
  .header_title {
    font-size: 3rem;
  }
}

.header_toggle {
  position: fixed;
  top: 24px;
  right: 16px;
  z-index: 300;
  transition: transform 0.5s ease 0s;
  opacity: 0;
}
@media screen and (max-width: 767px) {
  .header_toggle {
    opacity: 1;
  }
}
.header_toggle.is-active {
  transform: translateX(-300px);
  right: 10px;
}
.header_toggle.is-active .toggle_bar1,
.header_toggle.is-active .toggle_bar2,
.header_toggle.is-active .toggle_bar3 {
  background: #16161a;
}
.header_toggle.is-active .toggle_bar1 {
  transform: rotate(-45deg);
  top: 8px;
}
.header_toggle.is-active .toggle_bar2 {
  display: none;
}
.header_toggle.is-active .toggle_bar3 {
  transform: rotate(45deg);
  top: 8px;
}

.toggle_bars {
  width: 26px;
  height: 23px;
  line-height: 20px;
  display: block;
  position: relative;
}

.toggle_bar1,
.toggle_bar2,
.toggle_bar3 {
  width: 26px;
  height: 5px;
  position: absolute;
  top: 0;
  right: 0;
  background: #fffffe;
  border-radius: 4px;
}

.toggle_bar1 {
  top: 0;
}

.toggle_bar2 {
  top: 9px;
}

.toggle_bar3 {
  top: 18px;
}

.header_nav {
  margin-left: auto;
}

@media screen and (min-width: 768px) {
  .header_nav-items {
    display: flex;
    align-items: center;
  }
}

@media screen and (min-width: 768px) {
  .header_nav-item + .header_nav-item {
    margin-left: 40px;
  }
}
.header_nav-item a {
  display: inline-block;
  color: #fffffe;
  font-size: clamp(14px, 2vw, 20px);
  font-weight: 700;
  position: relative;
}
.header_nav-item a::after {
  content: "";
  position: absolute;
  bottom: 25px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 3px;
  background: #2cb67d;
  opacity: 0;
  transition: opacity 0.3s ease 0s;
}
.header_nav-item a:hover::after {
  opacity: 1;
}

@media screen and (max-width: 767px) {
  .header_nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100%;
    background: #16161a;
    z-index: 301;
    text-align: center;
    transform: translateX(105%);
    transition: transform 0.5s ease 0s;
  }
  .header_nav.is-active {
    transform: translateX(0);
  }
  .header_nav-items {
    padding-top: 100px;
  }
  .header_nav-items a {
    display: inline-block;
    font-size: 1.8rem;
    text-align: center;
  }
  .header_nav-items a::after {
    bottom: 10px;
  }
}
.header_background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 299;
  background: rgba(255, 255, 254, 0.8);
  display: none;
  transition: all 0.5s ease 0s;
}
.header_background.is-active {
  display: block;
}

/*===========================
top
===========================*/
.top {
  background: #fffffe;
  width: 100%;
  height: 100%;
}
@media screen and (min-width: 768px) {
  .top {
    margin-top: 100px;
  }
}
@media screen and (max-width: 767px) {
  .top {
    margin-top: 70px;
  }
}

.top_inner {
  position: relative;
}

.top_visual {
  background: url(../img/portfolio.png) no-repeat center center/contain;
  height: 500px;
  width: 100%;
}

.top_button {
  position: absolute;
  top: 15%;
  opacity: 0.2;
  transition: opacity 0.3s ease 0s;
}
@media screen and (min-width: 768px) {
  .top_button {
    right: 12%;
  }
}
@media screen and (max-width: 767px) {
  .top_button {
    right: 10%;
  }
}
@media (hover: hover) {
  .top_button {
    /* hover指定できるPCを想定したスタイル */
  }
  .top_button:hover {
    opacity: 1;
  }
}
@media (hover: none) {
  .top_button {
    /* hoverが使えないタッチ端末を想定した装飾 */
  }
  .top_button:active {
    opacity: 1;
  }
}
.top_button a {
  border-radius: 50%;
}
@media screen and (min-width: 768px) {
  .top_button a {
    width: 180px;
    height: 180px;
    line-height: 180px;
  }
}
@media screen and (max-width: 767px) {
  .top_button a {
    font-size: 1.3rem;
    width: 90px;
    height: 90px;
    line-height: 90px;
  }
}

/*===========================
about
===========================*/
.about_content {
  max-width: 960px;
  background: #242629;
}
@media screen and (min-width: 768px) {
  .about_content {
    margin: 60px auto 0;
    display: flex;
    padding: 20px;
  }
}
@media screen and (max-width: 767px) {
  .about_content {
    margin: 30px auto 0;
    padding: 15px;
  }
}

@media screen and (min-width: 768px) {
  .about_content-image {
    flex: 0 1 50%;
  }
}
@media screen and (max-width: 767px) {
  .about_content-image {
    width: 100%;
  }
}

@media screen and (min-width: 768px) {
  .about_content-profile {
    flex: 0 0 50%;
    margin-left: 20px;
  }
}
@media screen and (max-width: 767px) {
  .about_content-profile {
    margin-top: 15px;
  }
}

.profile_name {
  font-weight: 700;
  color: #fffffe;
  margin-top: 10px;
}
@media screen and (min-width: 768px) {
  .profile_name {
    font-size: 2.5rem;
  }
}
@media screen and (max-width: 767px) {
  .profile_name {
    font-size: 2rem;
  }
}

.profile_lead {
  font-size: 1.8rem;
  font-weight: 700;
  margin-top: 20px;
  color: #fffffe;
}

.profile_sub {
  margin-top: 20px;
  font-size: 1.8rem;
  color: #fffffe;
}

.profile_text {
  margin-top: 10px;
  line-height: 1.4;
}

/*===========================
study
===========================*/
.study {
  background: #242629;
  width: 100%;
  height: 100%;
}

@media screen and (min-width: 768px) {
  .study_card-items {
    margin: 60px auto 0;
    display: flex;
    justify-content: space-around;
  }
}
@media screen and (max-width: 767px) {
  .study_card-items {
    margin: 30px auto 0;
  }
}

.study_card-item {
  box-shadow: 3px 3px 15px rgba(0, 0, 0, 0.16);
  background: #16161a;
  padding: 15px;
  border-radius: 4px;
}
@media screen and (min-width: 768px) {
  .study_card-item {
    flex: 0 0 31%;
  }
}
@media screen and (max-width: 767px) {
  .study_card-item {
    width: 100%;
  }
  .study_card-item + .study_card-item {
    margin-top: 15px;
  }
}

.card_item-image {
  padding-top: 75%;
  position: relative;
  overflow: hidden;
}
.card_item-image img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
}

.card_item-content-lead {
  text-align: center;
  font-weight: 700;
  color: #fffffe;
  margin-top: 20px;
}
@media screen and (min-width: 768px) {
  .card_item-content-lead {
    font-size: 2.5rem;
  }
}
@media screen and (max-width: 767px) {
  .card_item-content-lead {
    font-size: 2rem;
  }
}

.card_item-content-text {
  margin-top: 15px;
  line-height: 1.4;
}

/*===========================
work
===========================*/
.work_content {
  max-width: 960px;
}
@media screen and (min-width: 768px) {
  .work_content {
    margin: 60px auto 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }
}
@media screen and (max-width: 767px) {
  .work_content {
    margin: 30px auto 0;
  }
}

@media screen and (min-width: 768px) {
  .work_content-item {
    flex: 0 0 48%;
  }
  .work_content-item:nth-child(n+3) {
    margin-top: 25px;
  }
}
@media screen and (max-width: 767px) {
  .work_content-item {
    width: 100%;
  }
  .work_content-item + .work_content-item {
    margin-top: 15px;
  }
}
.work_content-item a:hover .work_content-item-image > img {
  transform: scale(1.1);
}

.work_content-item-image {
  overflow: hidden;
}
.work_content-item-image img {
  transition: transform 0.3s ease 0s;
}

.work_content-item-box {
  padding: 23px 15px;
  background: #242629;
}

.work_content-item-lead {
  font-weight: 700;
  color: #fffffe;
}
@media screen and (min-width: 768px) {
  .work_content-item-lead {
    font-size: 2rem;
  }
}
@media screen and (max-width: 767px) {
  .work_content-item-lead {
    text-align: center;
    font-size: 1.8rem;
  }
}

/*===========================
contact
===========================*/
.contact {
  background: #242629;
}

.contact_form {
  max-width: 900px;
  background: #16161a;
  border-radius: 12px;
}
@media screen and (min-width: 768px) {
  .contact_form {
    padding: 50px 40px;
    margin: 60px auto 0;
  }
}
@media screen and (max-width: 767px) {
  .contact_form {
    padding: 40px 30px;
    margin: 30px auto 0;
  }
}

@media screen and (min-width: 768px) {
  .form_item {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}
.form_item + .form_item {
  margin-top: 50px;
}
@media screen and (max-width: 767px) {
  .form_item + .form_item {
    margin-top: 25px;
  }
}

.form_item-lable {
  color: #fffffe;
  font-size: 700px;
  font-size: 1.8rem;
}
@media screen and (min-width: 768px) {
  .form_item-lable {
    width: 188px;
  }
}
@media screen and (min-width: 768px) {
  .form_item-input {
    width: calc(100% - 188px);
  }
}
@media screen and (max-width: 767px) {
  .form_item-input {
    width: 100%;
    margin-top: 15px;
  }
}
.form_item-input [type=text],
.form_item-input [type=email] {
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border-radius: 0;
  color: #000000;
  font-family: inherit;
  font-size: 1.8rem;
  background: #fff;
  border: none;
  padding: 3px;
  width: 100%;
  height: 40px;
  transition: box-shadow 0.3s ease 0s;
}
.form_item-input [type=text]:hover,
.form_item-input [type=email]:hover {
  box-shadow: 5px 5px 15px rgba(44, 182, 125, 0.9);
}
.form_item-input [type=text]:focus-visible,
.form_item-input [type=email]:focus-visible {
  box-shadow: 5px 5px 15px rgba(44, 182, 125, 0.9);
  outline: auto;
}

@media screen and (min-width: 768px) {
  .form_item-textarea {
    margin-top: 50px;
  }
}
@media screen and (max-width: 767px) {
  .form_item-textarea {
    margin-top: 25px;
  }
}

@media screen and (min-width: 768px) {
  .form_item-textarea-input {
    margin-top: 30px;
  }
}
@media screen and (max-width: 767px) {
  .form_item-textarea-input {
    margin-top: 15px;
  }
}
.form_item-textarea-input textarea {
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border-radius: 0;
  color: #000000;
  font-family: inherit;
  font-size: 1.8rem;
  background: #fff;
  padding: 3px;
  width: 100%;
  border: none;
  min-height: 200px;
  transition: box-shadow 0.3s ease 0s;
}
.form_item-textarea-input textarea:hover {
  box-shadow: 5px 5px 15px rgba(44, 182, 125, 0.9);
}
.form_item-textarea-input textarea:focus-visible {
  box-shadow: 5px 5px 15px rgba(44, 182, 125, 0.9);
  outline: none;
}

.form_button {
  text-align: center;
}
@media screen and (min-width: 768px) {
  .form_button {
    margin-top: 50px;
  }
}
@media screen and (max-width: 767px) {
  .form_button {
    margin-top: 25px;
  }
}

.form_message {
  color: #fffffe;
  font-weight: 700;
  text-align: center;
  margin-top: 50px;
  font-size: 2rem;
  display: none;
}
.form_message.-error {
  color: #f00;
}

/*===========================
footer
===========================*/
.copylight {
  max-width: 1200px;
  text-align: center;
  font-family: "Courier", sans-serif;
  font-size: 1.4rem;
  padding: 20px;
  margin: 0 auto;
}

/*===========================
to-top
===========================*/
.to-top {
  border-radius: 50%;
  text-align: center;
  position: fixed;
  background: #2cb67d;
  opacity: 0.6;
  transition: opacity 0.3s ease 0s;
}
@media screen and (min-width: 768px) {
  .to-top {
    bottom: 40px;
    right: 40px;
    opacity: 0.5;
    width: 80px;
    height: 80px;
    line-height: 80px;
  }
}
@media screen and (max-width: 767px) {
  .to-top {
    width: 50px;
    height: 50px;
    line-height: 50px;
    bottom: 20px;
    right: 16px;
  }
}
@media (hover: hover) {
  .to-top {
    /* hover指定できるPCを想定したスタイル */
  }
  .to-top:hover {
    opacity: 1;
  }
}
@media (hover: none) {
  .to-top {
    /* hoverが使えないタッチ端末を想定した装飾 */
  }
  .to-top:active {
    opacity: 1;
  }
}
.to-top a {
  display: inline-block;
  color: #fffffe;
  font-family: "Courier", sans-serif;
  font-weight: 700;
}
@media screen and (min-width: 768px) {
  .to-top a {
    font-size: 2rem;
  }
}