/* ＝＝＝＝ Custom Property ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ */
:root {
  /* ＝＝＝＝ Font Family ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ */
  --ff_ja: 'Noto Serif JP', serif;
  --ff_en: 'Libre Baskerville', serif;
  /* ＝＝＝＝ Color ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ */
  /* ＝＝＝＝ Text ＝＝＝＝ */
  --clr_text-main: #CCCCCC;
  --clr_text-pale: #EEEEEE;
  --clr_text-dark: #AAAAAA;
  --clr_text-dark2: #555555;
  /* ＝＝＝＝ Green ＝＝＝＝ */
  --clr_green-sidebar: #030F00;
  --clr_green-main: #031A00;
  --clr_green-sub: #042600;
  --clr_green-pale: #063300;
  --clr_green-accent1: #0C6600;
  --clr_green-accent2: #129900;
  --clr_green-accent3: #18CC00;
  /* ＝＝＝＝ Red ＝＝＝＝ */
  --clr_red-main: #330006;
  --clr_red-sub: #4C0009;
  --clr_red-pale: #66000C;
  --clr_red-accent1: #990012;
  --clr_red-accent2: #CC0018;
  --clr_red-accent3: #FF001E;
  /* ＝＝＝＝ Yellow ＝＝＝＝ */
  --clr_yellow-main: #332D00;
  --clr_yellow-sub: #4D4400;
  --clr_yellow-pale: #665A00;
  --clr_yellow-accent1: #998700;
  --clr_yellow-accent2: #CCB400;
  --clr_yellow-accent3: #FFE100;
/* ＝＝＝＝ Others ＝＝＝＝ */
  --clr_blue-saturday: #33b8ff;
  --clr_black-trans: rgb(0 0 0 / .8);
  /* ＝＝＝＝ Variable Value ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ */
  /* ＝＝＝＝ vvS 360px-512px ＝＝＝＝ */
  --vvS_12-18: clamp(0.75rem, -0.138rem + 3.95vw, 1.125rem);
  --vvS_16-20: clamp(1rem, 0.408rem + 2.63vw, 1.25rem);
  --vvS_16-24: clamp(1rem, -0.184rem + 5.26vw, 1.5rem);
  /* ＝＝＝＝ vvM 512px-744px ＝＝＝＝ */
  /* ＝＝＝＝ vvL 744px-1280px ＝＝＝＝ */
  /* ＝＝＝＝ vvXL 1280px-1920px ＝＝＝＝ */
  --vvXL_10-14: clamp(0.625rem, 0.125rem + 0.63vw, 0.875rem);
  --vvXL_10-16: clamp(0.625rem, -0.125rem + 0.94vw, 1rem);
  --vvXL_12-20: clamp(0.75rem, -0.25rem + 1.25vw, 1.25rem);
  --vvXL_16-18: clamp(1rem, 0.75rem + 0.31vw, 1.125rem);
  --vvXL_16-20: clamp(1rem, 0.5rem + 0.63vw, 1.25rem);
  --vvXL_16-24: clamp(1rem, 1.25vw, 1.5rem);
  --vvXL_20-24: clamp(1.25rem, 0.75rem + 0.63vw, 1.5rem);
  --vvXL_24-28: clamp(1.5rem, 1rem + 0.63vw, 1.75rem);
  --vvXL_24-40: clamp(1.5rem, -0.5rem + 2.5vw, 2.5rem);
  --vvXL_28-36: clamp(1.75rem, 0.75rem + 1.25vw, 2.25rem);
  --vvXL_32-48: clamp(2rem, 2.5vw, 3rem);
}


/* ＝＝＝＝ Common ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ */
:where(*) {
  letter-spacing: .05em;
}

body {
  background-color: var(--clr_green-main);
  color: var(--clr_text-main);
  font-family: var(--ff_ja);
  line-height: 1.75;
}

.c-main {
  opacity: 0;
  animation-name: fadeIn;
  animation-duration: .5s;
  animation-fill-mode: forwards;
  animation-timing-function: ease-in-out;
}
@keyframes fadeIn {
  0% {opacity: 0}
  100% {opacity: 1}
}

.c-section {
  padding: 3rem 1rem;
}

.c-inner {
  max-width: 32rem;
  margin: 0 auto;
}

@media screen and (min-width: 60rem) {
.c-section {
  padding: 6rem 2rem;
}

.c-inner {
  max-width: 60rem;
}
}

@media screen and (min-width: 80rem) {
body {
  font-size: var(--vvXL_16-18);
}

.c-section {
  width: 75%;
  margin-inline-start: auto;
}

.c-inner {
  max-width: 70rem;
}

}

/* ＝＝＝＝ Heading (Subpage) ＝＝＝＝ */
.c-mv__heading {
  width: 100%;
  padding: 1.5rem;
  position: absolute;
  bottom: 1.5rem;
  right: 0;
  background-image: linear-gradient(to left, rgb(0 0 0 / 1), rgb(0 0 0 / 0));
}

.c-mv__heading--ja {
  font-family: var(--ff_ja);
  letter-spacing: .1em;
  text-align: right;
}

.c-mv__heading--en {
  margin-block-start: .25rem;
  color: var(--clr_text-dark);
  font-family: var(--ff_en);
  font-size: 1.5rem;
  letter-spacing: .1em;
  text-align: right;
}

@media screen and (min-width: 46.5rem) {
.c-mv__heading {
  width: 50%;
}

.c-mv__heading--ja {
  font-size: 1.75rem;
}

.c-mv__heading--en {
  font-size: 2.25rem;
}
}

@media screen and (min-width: 80rem) {
.c-mv__heading {
  bottom: auto;
  top: 0;
}

.c-mv__heading--ja {
  font-size: 2rem;
}

.c-mv__heading--en {
  font-size: 2.5rem;
}


}

/* ＝＝＝＝ Heading (Line) ＝＝＝＝ */
.c-sectionHeading__line {
  display:  block grid;
}

.c-sectionHeading__line::before {
  content: "";
  width: 100%;
  height : .0625rem;
  grid-area: 1 / 1;
  align-self: center;
}

.c-sectionHeading__line span {
  padding-inline-end: 1rem;
  grid-area: 1 / 1;
  justify-self: left;
}

.c-sectionHeading__line.red-L {
  color: var(--clr_yellow-accent3);
  font-size: 2rem;
}

.c-sectionHeading__line.red-M,
.c-sectionHeading__line.green-M {
  font-size: 1.5rem;
}

.c-sectionHeading__line.green-S {
  font-size: 1.25rem;
}

.c-sectionHeading__line.red-L::before {
  background-color: var(--clr_yellow-accent3);
}

.c-sectionHeading__line.red-M::before,
.c-sectionHeading__line.green-M::before,
.c-sectionHeading__line.green-S::before {
  background-color: var(--clr_text-main);
}

.c-sectionHeading__line.red-L span {
  background-image: linear-gradient(to right, var(--clr_red-sub) 97%, rgb(0 0 0 / 0) 100%);
  text-shadow: .125em .125em .25em var(--clr_red-accent3);
}

.c-sectionHeading__line.red-M span {
  background-image: linear-gradient(to right, var(--clr_red-main) 97%, rgb(0 0 0 / 0) 100%);
  text-shadow: .125em .125em .25em var(--clr_red-accent3);
}

.c-sectionHeading__line.green-M span,
.c-sectionHeading__line.green-S span {
  background-image: linear-gradient(to right, var(--clr_green-main) 97%, rgb(0 0 0 / 0) 100%);
  text-shadow: .125em .125em .25em var(--clr_green-accent3);
}

@media screen and (min-width: 80rem) {
.c-sectionHeading__line.red-L {
  font-size: var(--vvXL_32-48);
}

.c-sectionHeading__line.green-M,
.c-sectionHeading__line.red-M {
  font-size: var(--vvXL_28-36);
}

.c-sectionHeading__line.green-S {
  font-size: var(--vvXL_20-24);
}

}


/* ＝＝＝＝ Heading (Frame) ＝＝＝＝ */
.c-sectionFrame {
  padding: 3rem 1rem;
  position: relative;
  border: 1px solid var(--clr_text-main);
  border-radius: .5rem;
}

.c-sectionHeading__frame {
  padding: 0 .5em;
  position: absolute;
  top: 0;
  left: 50%;
  translate: -50% -50%;
  font-size: 1.5rem;
  font-weight: 700;
  white-space: nowrap;
}

.c-sectionHeading__frame.red {
  background-color: var(--clr_red-main);
}

.c-sectionHeading__frame.green {
  background-color: var(--clr_green-main);
}

@media screen and (min-width: 60rem) {
.c-sectionFrame {
  padding: 4rem 2rem;
}

.c-sectionHeading__frame {
  font-size: var(--vvXL_28-36);
}
}

/* ＝＝＝＝ Button ＝＝＝＝ */
.c-btn {
  width: 100%;
  padding: 1em 0;
  position: relative;
  border-radius: .25rem;
  background-color: var(--clr_text-main);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .1em;
  transition: background-color .3s ease-in-out;
}

.c-btn:hover,
.c-btn:focus-visible {
  background-color: var(--clr_yellow-accent3);
}

.c-btn::after {
  content: "";
  width: 1.5rem;
  height: 1.5rem;
  position: absolute;
  top: 50%;
  right: 1rem;
  translate: 0 -50%;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
}

.c-btn.red {
  color: var(--clr_red-main);
}

.c-btn.red::after {
  background-image: url(../../img/common/btn-arrow-red.svg);
  color: var(--clr_red-main);
}

.c-btn.green {
  color: var(--clr_green-main);
}

.c-btn.green::after {
  background-image: url(../../img/common/btn-arrow-green.svg);
  color: var(--clr_green-main);
}

.c-btn.green.close::after {
  background-image: url(../../img/common/btn-close-green.svg);
  color: var(--clr_green-main);
}

.c-btn.home {
  display: block flow;
  margin-block-start: 3rem;
  text-align: center;
}

@media screen and (min-width: 80rem) {
.c-btn {
  font-size: var(--vvXL_16-18);
}
}

/* ＝＝＝＝ Text ＝＝＝＝ */
.c-hyphen::before {
  content: '-';
  margin-inline-end: .5em;
}

.c-hyphen::after {
  content: '-';
  margin-inline-start: .5em;
}

.c-textSpacer__s {
  margin-block-start: 1rem;
}

.c-textSpacer__m {
  margin-block-start: 1.5rem;
}

.c-map {
  background-color: var(--clr_green-main);
}

.c-map iframe {
  width: 100%;
  aspect-ratio: 1 / 1;
  vertical-align: bottom;
}

@media screen and (min-width: 80rem) {
.c-map iframe {
  aspect-ratio: 1.618 / 1;
}

}

/* ＝＝＝＝ Header ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ */
.c-header {
  width: 100%;
  padding: .5rem 1.5rem .75rem;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  background-color: var(--clr_black-trans);
}

.c-siteTitle__container {
  display: inline grid;
  grid-template-columns: auto auto;
  grid-template-areas: 
  "tagline since"
  "title title"
  "int int";
  gap: .25rem 0;
  font-family: var(--ff_en);
  line-height: 1;
  cursor: pointer;
}

.c-siteTitle {
  grid-area: title;
  color: #fff;
  font-size: 1.5rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  text-shadow:  0 0 .125rem var(--clr_red-accent1),
                0 0 .25rem var(--clr_text-main),
                0 0 .5rem var(--clr_text-main),
                0 0 .75rem var(--clr_red-accent3),
                0 0 1rem var(--clr_red-accent3),
                0 0 1.25rem var(--clr_red-accent3),
                0 0 1.5rem var(--clr_red-accent3);
}

.c-siteTitle__tagline {
  grid-area: tagline;
  align-self: end;
  justify-self: start;
  letter-spacing: 0;
}

.c-siteTitle__tagline--amp {
  color: var(--clr_red-accent3);
  font-size: .75rem;
}

.c-siteTitle__since {
  grid-area: since;
  align-self: end;
  justify-self: end;
  font-size: .75rem;
  letter-spacing: 0;
}

.c-siteTitle__int {
  grid-area: int;
  font-size: .625rem;
}

.c-btn__menu--open {
  padding: .75rem 1rem;
  border: .0625rem solid var(--clr_green-main);
  border-radius: .0625rem;
  box-shadow: 0 0 0 .25rem var(--clr_text-main);
  position: absolute;
  top: 1.375rem;
  right: 1.5rem;
  background-color: var(--clr_text-main);
  color: var(--clr_green-main);
  font-family: var(--ff_en);
  font-size: .875rem;
  line-height: 1;
  text-transform: uppercase;
}

.c-btn__menu--open:focus-visible {
  outline: .25rem solid blue;
}

@media screen and (min-width: 46.5rem)  {
.c-header {
  padding: .75rem 1.5rem 1.25rem;
  text-align: center;
}

.c-siteTitle {
  font-size: 2rem;
}

.c-siteTitle__tagline {
  font-size: 1.25rem;
}

.c-siteTitle__since {
  font-size: 1rem;
}

.c-siteTitle__int {
  font-size: .825rem;
}

.c-btn__menu--open {
  top: 1.75rem;
}

}

@media screen and (min-width: 80rem) {
.c-header {
  width: 25%;
  height: 100dvh;
  padding: 0;
  display: block flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  right: auto;
}

.c-siteTitle {
  font-size: var(--vvXL_24-40);
}

.c-siteTitle__tagline {
  justify-self: start;
  font-size: var(--vvXL_16-24);
}

.c-siteTitle__since {
  font-size: var(--vvXL_12-20);
}

.c-siteTitle__int {
  font-size: var(--vvXL_10-16);
}

.c-btn__menu--open {
  display: none;
}
}

/* ＝＝＝＝ Nav ＝＝＝＝ */
.c-nav {
  width: 100dvw;
  height: 100dvh;
  opacity: 0;
  position: fixed;
  top: 0;
  left: 100%;
  z-index: 100;
  transition: opacity .3s;
}

.c-nav__container {
  width: 100%;
  height: 100%;
  display: block grid;
  place-content: center;
  background-image: linear-gradient(to right bottom, var(--clr_green-pale), var(--clr_green-main), var(--clr_green-sidebar), var(--clr_green-main), var(--clr_green-pale));
}

.c-nav__list {
  display: block grid;
  grid-template-columns: 1fr 2rem 1fr;
  row-gap: 2.5rem;
}

.c-nav__item {
  display: block grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
}

.c-nav__item a {
  display: contents;
  font-size: 1.25rem;
  transition: color .3s ease-in-out;
}

.c-nav__item a::before {
  content: "";
  grid-column: 2 / 3;
  grid-row: 1;
}

.c-nav__item.c-nav__current::after {
  content: "";
  width: 1rem;
  height: 1rem;
  grid-column: 2 / 3;
  grid-row: 1;
  place-self: center;
  background-color: var(--clr_red-accent3);
}

.c-nav__item a:hover,
.c-nav__item a:focus-visible {
  color: var(--clr_yellow-accent3);
}

.c-nav__item__en {
  grid-column: 1 / 2;
  justify-self: end;
  font-family: var(--ff_en);
}

.c-nav__item__ja {
  grid-column: 3 / 4;
  justify-self: start;
}

.c-btn__menu--close {
  padding: .75rem 1rem;
  position: absolute;
  top: 1.375rem;
  right: 1.5rem;
  border: .0625rem solid var(--clr_green-main);
  border-radius: .0625rem;
  box-shadow: 0 0 0 .25rem var(--clr_text-main);
  background-color: var(--clr_text-main);
  color: var(--clr_green-main);
  font-family: var(--ff_en);
  font-size: .875rem;
  line-height: 1;
  text-transform: uppercase;
}

.c-btn__menu--close:focus-visible {
  outline: .25rem solid blue;
}

.js-navOpen {
  opacity: 1;
  left: 0;
}

.js-navClose {
  opacity: 0;
}

@media screen and (min-width: 46.5rem) {
.c-nav__container {
  background-image: linear-gradient(to left bottom, var(--clr_green-sidebar), var(--clr_green-main), var(--clr_green-sidebar), var(--clr_green-main), var(--clr_green-accent1));
}

.c-nav__list {
  position: absolute;
  top: 8rem;
  right: 3rem;
}

.c-btn__menu--open {
  top: 2.13125rem;
}

.c-btn__menu--close {
  top: 2.13125rem;
}

}

@media screen and (min-width: 80rem) {
.c-nav {
  position: static;
  width: 100%;
  height: auto;
  opacity: 1;
  left: auto;
}

.c-nav__container {
  display: flex;
  align-items: flex-end;
  padding-block-end: 3rem;
  background-image: none;
}

.c-nav__list {
  position: static;
}

.c-nav__item a {
  font-size: var(--vvXL_20-24);
}

.c-btn__menu--close {
  display: none;
}
}

/* ＝＝＝＝ Footer ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ */
.c-footer {
  padding: 3rem 2rem;
  background-color: var(--clr_text-main);
  color: var(--clr_green-main);
}

.c-footer__inner {
  max-width: 32rem;
  margin: 0 auto;
}

.c-footer__siteTitle--container {
  display: inline grid;
  grid-template-columns: auto auto;
  grid-template-areas: 
  "tagline since"
  "title title";
  gap: .5rem 0;
  font-family: var(--ff_en);
  line-height: 1;
  cursor: auto;
}

.c-footer__siteTitle {
  grid-area: title;
  color: var(--clr_green-main);
  font-size: 1.5rem;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.c-footer__siteTitle--tagline {
  grid-area: tagline;
  align-self: end;
  letter-spacing: 0;
}

.c-footer__siteTitle--tagline span {
  font-size: .75rem;
}

.c-footer__siteTitle--since {
  grid-area: since;
  align-self: end;
  justify-self: end;
  font-size: .75rem;
  letter-spacing: 0;
}

.c-footer__body {
  padding-block-start: 1rem;
  border-block-start: .0625rem solid var(--clr_green-main);
  margin-block-start: .5rem;
}

.c-footer__list span {
  font-weight: 400;
}

.c-footer__snsContainer {
  display: block flex;
  justify-content: space-between;
  margin: 2rem auto 0;
}

.c-footer__snsContainer a {
  transition: opacity .2s ease-in-out;
}

.c-footer__snsContainer a:hover,
.c-footer__snsContainer a:focus-visible {
  opacity: .5;
}

.c-footer__copyright {
  margin-block-start: 2rem;
  font-family: var(--ff_en);
  font-size: .75rem;
  text-align: center;
}

@media screen and (min-width: 80rem) {
.c-footer {
  width: 75%;
  margin-inline-start: auto;
}

.c-footer__inner {
  max-width: 48rem;
}

.c-footer__body {
  display: block flex;
  justify-content: space-between;
  padding-block-start: 1rem;
  border-block-start: .0625rem solid var(--clr_green-main);
  margin-block-start: .5rem;
}

.c-footer__snsContainer {
  display: block flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  margin: 0;
}
}