/* CSS Document */
body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  width: 100%;
  height: 100%;
  background: #23153C;
  position: relative;
  overflow-x: hidden;
  color: #FFF;
  padding: 0;
  letter-spacing: 0.1em; }

img {
  max-width: 100%; }

.flexBox {
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  align-items: center; }

.youtube {
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: auto;
  position: relative;
  border: 2px solid #FFF; }

.youtube iframe {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0; }

.shareBox {
  width: 230px;
  margin: 0 auto 0;
  padding: 0;
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
  align-items: stretch;
  align-content: flex-start; }
  .shareBox .shareButtons {
    flex: 0 0 auto; }
    .shareBox .shareButtons a {
      display: block;
      width: 50px;
      height: 50px;
      margin: 0;
      padding: 0;
      background-size: 50px; }

.tweetBtn {
  background: url(../../Content/images/sns_ico_02_tw.svg) no-repeat; }

.fbBtn {
  background: url(../../Content/images/sns_ico_01_fb.svg) no-repeat; }

.lineBtn {
  background: url(../../Content/images/sns_ico_03_line.svg) no-repeat; }

#bg3d {
  width: 200vw;
  height: 200vh;
  position: fixed;
  left: -50vw;
  top: -50vh;
  z-index: -1; }

header {
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 16;
  margin: auto;
  padding: 0;
  display: flex;
  flex-flow: column wrap;
  justify-content: center;
  align-items: center;
  align-content: center;
  font-family: 'M PLUS 1p', sans-serif;
  color: #FFF;
  font-weight: 900;
  text-align: center;
  position: relative; }
  header h1 {
    width: 100%;
    height: 0;
    max-width: 600px;
    padding: calc(100% * calc(340 / 600)) 0 0;
    margin: 0 auto;
    background: url("../images/arc/gunarena_logo_600340.png") no-repeat top center;
    background-size: 100%;
    overflow: hidden;
    z-index: 10; }
  header p {
    display: inline-block;
    margin: 20px auto 0;
    font-size: 8vw;
    text-shadow: 0px 5px 10px rgba(0, 0, 0, 0.8);
    z-index: 10; }

@media (min-width: 600px) {
  header {
    aspect-ratio: 3 / 4; }
    header h1 {
      padding: calc(600px * calc(340 / 600)) 0 0; }
    header p {
      display: inline-block;
      margin: 20px auto 0;
      font-size: clamp(1em, 8vw, 3.6em);
      text-shadow: 0px 5px 10px rgba(0, 0, 0, 0.8);
      z-index: 10; } }
@media (min-width: 960px) {
  header {
    aspect-ratio: 16 / 9; } }
main {
  overflow-x: hidden; }
  main section {
    width: 100%;
    margin: 0px auto;
    padding: 100px 0 0; }
    main section > div {
      width: calc(100% - 40px);
      margin: auto;
      padding: 0 0 20px; }
    main section h2 {
      margin: 0;
      font-family: 'M PLUS 1p', sans-serif;
      color: #FFF;
      font-size: 2em;
      font-weight: 900;
      text-align: center;
      text-shadow: 0px 5px 5px rgba(0, 0, 0, 0.6); }
      main section h2::after {
        content: "";
        display: block;
        width: 200px;
        height: 5px;
        margin: 10px auto 0;
        background-color: #B00;
        box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.6); }

@media (min-width: 560px) {
  main section {
    padding: 130px 0 0; }
    main section > div {
      width: calc(100% - 60px);
      padding: 0 0 50px; } }
@media (min-width: 960px) {
  main section {
    padding: 150px 0 0; }
    main section > div {
      width: calc(100% - 80px); }
    main section h2 {
      font-size: 2.6em; } }
#About {
  max-width: none;
  position: relative;
  overflow: visible;
  z-index: 10; }
  #About::before {
    content: "";
    width: 200vw;
    height: 100%;
    max-width: none;
    margin: 50px auto 0 -50vw;
    background: url("../images/arc/gunarena_ce_bg03.jpg") repeat center center;
    background-size: 100%;
    transform: rotate(-5deg);
    z-index: -1;
    position: absolute;
    top: 0; }
  #About > div {
    max-width: 1000px;
    margin: auto;
    color: #FFF; }
    #About > div > div {
      margin-top: 50px; }
  #About h2 {
    width: 100%;
    height: 0px;
    padding: calc(100% * calc(164 / 1477)) 0 0;
    margin: 0 auto;
    background: url("../images/arc/gunarena_ce_images02.png") no-repeat top center;
    background-size: 100%;
    overflow-y: hidden; }
  #About .flexBox {
    width: calc(100% - 40px);
    max-width: 640px;
    margin: 50px auto; }
    #About .flexBox > div {
      filter: drop-shadow(0px 0px 10px rgba(255, 255, 255, 0.5)); }
      #About .flexBox > div:nth-of-type(1) {
        flex: 0 0 40%; }
      #About .flexBox > div:nth-of-type(2) {
        flex: 0 0 60%; }
  #About .grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px; }

@media (min-width: 560px) {
  #About::before {
    background-size: 50%; }
  #About h2 {
    width: 80%;
    padding: calc(80% * calc(164 / 1477)) 0 0; }
  #About .flexBox {
    margin: 80px auto; }
  #About .youtube {
    max-width: 960px; }
  #About .grid {
    gap: 30px; } }
@media (min-width: 960px) {
  #About h2 {
    width: 640px;
    padding: calc(640px * calc(164 / 1477)) 0 0; }
  #About .grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px; } }
#Features {
  padding: 100px 0 0;
  position: relative;
  overflow: visible;
  z-index: 10; }
  #Features::before {
    content: "";
    width: 200vw;
    height: 100%;
    max-width: none;
    margin: 50px auto 0 -50vw;
    background-color: rgba(0, 0, 0, 0.6);
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.12) 14.3%, transparent 14.3%, transparent 100%), linear-gradient(to right, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.12) 14.3%, transparent 14.3%, transparent 100%);
    background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.12) 0px 1px, transparent 1px 6px), repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.12) 0px 1px, transparent 1px 6px);
    background-size: 5px;
    transform: rotate(-5deg);
    z-index: -1;
    position: absolute;
    top: 0; }
  #Features div > p {
    font-size: 1.2em;
    font-family: 'M PLUS 1p', sans-serif;
    font-weight: 900;
    text-shadow: 0px 0px 5px rgba(0, 0, 0, 0.5);
    margin: 30px auto 0; }
  #Features small {
    display: block;
    margin-top: 5px;
    text-shadow: 0px 0px 5px rgba(0, 0, 0, 0.5); }
  #Features ul {
    margin: 30px auto 0;
    padding: 0 0 0 1em;
    font-weight: bold; }
    #Features ul li + li {
      margin-top: 20px; }
    #Features ul li ul {
      list-style: square;
      margin: 10px auto 0;
      font-size: 0.9em;
      font-weight: normal; }
    #Features ul p {
      margin: 0;
      font-weight: bold; }
    #Features ul small {
      font-weight: normal; }
  #Features .caution {
    color: #B00;
    font-weight: bold; }

@media (min-width: 560px) {
  #Features > div {
    padding-top: 50px; }
  #Features div > p {
    font-size: clamp(1em, 3.2vw, 5em);
    text-align: center;
    margin: 50px auto 0; }
  #Features ul {
    margin: 30px auto 0;
    padding: 0 0 0 1em; }
    #Features ul li + li {
      margin-top: 20px; }
    #Features ul li ul {
      list-style: square;
      margin: 10px auto 0;
      font-size: 0.9rem; }
      #Features ul li ul li + li {
        margin-top: 10px; } }
@media (min-width: 960px) {
  #Features div > p {
    font-size: clamp(1em, 3.2vw, 2.4em); }
  #Features small {
    display: block;
    margin-top: 5px;
    text-shadow: 0px 0px 5px rgba(0, 0, 0, 0.5); }
  #Features ul {
    max-width: 1000px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin: 50px auto 0;
    padding: 0;
    list-style: none;
    font-weight: 900; }
    #Features ul li {
      align-self: flex-start;
      list-style: none; }
      #Features ul li + li {
        margin-top: 0px; }
      #Features ul li ul {
        display: block;
        margin: 20px auto 0; }
        #Features ul li ul p {
          font-size: 1.2em; }
        #Features ul li ul small {
          margin-top: 10px; }
    #Features ul p {
      font-size: 1.4em;
      font-family: 'M PLUS 1p', sans-serif; }
    #Features ul small {
      margin-top: 20px; }
      #Features ul small + small {
        margin-top: 10px; } }
#Game h3 {
  margin: 50px auto 0;
  padding: 2px 10px 3px;
  background: #B00;
  color: #FFF;
  text-align: center; }
#Game h4 {
  width: 100%;
  padding: 10px;
  margin: 0;
  background: rgba(0, 0, 0, 0.6);
  text-align: center;
  font-family: 'M PLUS 1p', sans-serif;
  font-weight: 900;
  letter-spacing: 0.1em;
  position: absolute;
  top: 0; }
#Game p {
  width: 100%;
  padding: 10px;
  margin: 0;
  background: rgba(0, 0, 0, 0.6);
  min-height: 100px;
  font-size: 0.8em;
  line-height: 1.8em;
  position: absolute;
  bottom: 0;
  letter-spacing: 0.15em; }
#Game small {
  display: block;
  margin: 50px auto 0;
  text-shadow: 0px 0px 10px black; }
#Game .flexBox {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 30px 0 0;
  font-size: 0.8em; }
  #Game .flexBox > div {
    aspect-ratio: 9 / 16;
    box-sizing: border-box;
    position: relative;
    min-width: 0; }
  #Game .flexBox iframe {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0; }

@media (min-width: 560px) {
  #Game h4 {
    font-size: 1.2em; }
  #Game p {
    font-size: 0.9em; }
  #Game small {
    display: block;
    margin: 50px auto 0;
    text-shadow: 0px 0px 5px rgba(0, 0, 0, 0.5);
    font-weight: bold; }
  #Game .flexBox {
    gap: 30px; } }
@media (min-width: 960px) {
  #Game small {
    font-size: 1em; }
  #Game .flexBox {
    margin-top: 40px;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 40px; } }
footer {
  margin-top: 200px;
  background: #222;
  text-align: center;
  color: #FFF;
  padding: 100px 0; }
  footer > div {
    width: 100%;
    margin-top: 50px; }
  footer ul {
    list-style: none;
    padding: 0; }
    footer ul li {
      margin-top: 10px;
      padding: 0 10px; }
      footer ul li a {
        text-decoration: none;
        color: #FFF; }
  footer .logo {
    display: flex;
    flex-flow: row wrap;
    width: 80%;
    margin-left: auto;
    margin-right: auto; }
  footer .natsumeatari, footer .taito, footer .youngbae {
    flex: 0 0 calc(calc(100% / 1) - 20px);
    margin: 40px auto 0;
    padding: 0;
    order: 2;
    /*flex: 0 0 calc(calc(100% / 3) - 20px);
    margin-left: auto;
    margin-right: auto;*/ }
  footer .natsumeatari, footer .youngbae {
    padding-top: 15px; }
    footer .natsumeatari img, footer .youngbae img {
      display: block;
      height: 45px; }
  footer .taito {
    order: 1;
    margin: 0px auto; }
    footer .taito img {
      height: 60px; }
  footer .copy p {
    align-self: center;
    padding: 0 5px;
    font-size: 0.5em; }
  footer .copy img {
    width: auto;
    height: 22px; }

@media (min-width: 560px) {
  footer ul li a {
    font-size: 0.8em; }
  footer .natsumeatari img, footer .youngbae img {
    margin: auto; }
  footer .copy p {
    font-size: 0.7em; } }
@media (min-width: 960px) {
  footer .natsumeatari, footer .taito, footer .youngbae {
    flex: 0 0 calc(calc(100% / 3) - 20px);
    margin: 0 auto;
    order: 1; }
  footer .taito {
    order: 2; }
  footer .copy {
    margin-top: 100px; }
    footer .copy p {
      font-size: 0.8em; } }