@charset "utf-8";

/*==========================
common
==========================*/

:root {
    --primary-white: #FDFDFD;
    --primary-whiteLow: #ECF5F5;
    --primary-black: #333A3A;
    --primary-lightGray: #F8F8F8;
    --primary-gray: #909090;
    --contentWidth: 91.4%;
    --contentPadding: 4.2%;
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    font-family: "Montserrat", Arial, sans-serif;
    font-style: normal;
    font-weight: 400;
    color: var(--primary-black, #333A3A);
    background-color: var(--primary-white, #FDFDFD);
    line-height: 1;
}

html.preload body {
  visibility: hidden;
}

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

.header {
    position: fixed;
    padding: 60px 4.16vw;
    width: 20%;
    height: calc(var(--vh) * 100);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    /* position: fixed; */
    z-index: 1000;
    /* background-color: white; */
}

main {
    width: 80%;
    margin-left: 20%;
}

.container {
    display: flex;
    position: relative;
}

.copy,
.copy__sp--top {
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.copy__pc {
    display: block;
    margin-top: 30px;
}

.copy__sp,
.copy__sp--top {
    display: none;
}

@media screen and (max-width:910px) {
    main {
        width: 100%;
    }
}


/*====================
header_menu
====================*/

.logo-title {
    font-size: 3.3rem;
    letter-spacing: 3.5px;
    text-align: center;
}

.logo-title span{
    display: block;
    font-size: 1.1rem;
    letter-spacing: 10.5px;
    padding: 5px 0 0 2px;
    color: var(--primary-gray);
}

.side__menu {
    /* margin-top: 100px; */
    margin-top: 80px;
}

.side__menu,
.copy__pc {
    letter-spacing: 2px;
}

.side__menuItem {
    margin-top: 40px;
    font-size: 1.4rem;
}

.side__menuItemLink {
    transition: 0.3s;
}

.side__menuItemLink:hover {
    opacity: 0.5;
    transition: 0.3s;
}

.side__worksItem {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-top: 27px;
    font-size: 1.2rem;
}

.bgColor-btn {
    margin-top: 50px;
}

.side__worksItem::before {
    display: block;
    content: '';
    width: 20px;
    height: 1px;
    background-color: var(--primary-gray, #333A3A);
}

.btnWrapper {
    display: flex;
    gap: 25px;
}

.menu-btn {
    display: none;
    width: 25px;
    height: auto;
}

@media screen and (max-width:1200px) {
        .logo-title {
            font-size: 2.7rem;
            letter-spacing: 3.5px;
        }
        .logo-title span{
            font-size: 0.9rem;
            letter-spacing: 9px;
            padding: 5px 0 0 2px;
        }
    }

@media screen and (max-width:910px) {
    .header {
        width: 100%;
        padding: 20px 5.33%;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        height: auto;
    }
    main {
        margin-left: 0;
    }
    .header__container {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .logo-title {
        font-size: 2.4rem;
        letter-spacing: 2.4px;
    }
    .logo-title span{
        font-size: 0.8rem;
        letter-spacing: 7.5px;
        padding: 3px 0 0 2px;
    }
    .side__menuList {
        display: none;
    }
    .side__menu,
    .bgColor-btn {
        margin-top: 0;
    }
    .menu-btn {
        display: block;
    }
    .copy__pc {
        display: none;
    }
    .container {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .copy__sp--top {
        display: block;
    }
    .copy__sp {
        display: block;
        margin: 60px 0;
    }
    .copy__sp--top {
        position: absolute;
        bottom: 2.85%;
        left: 50%;
        transform: translateX(-50%);
    }
}


/*====================
dark_right
====================*/

:root {
    --dark-color: #000;
    --white-color: #fff;
}

body {
    background: var(--white-color);
    color: var(--dark-color);
    /* transition: all 1s ease-in-out;  */
    transition: background-color 1s ease, color 1s ease;
}

body.dark-mode {
    background-color: var(--dark-color) !important;
    color: var(--white-color) !important;
}


/* preload中はトランジションを無効化 */

body.preload,
body.preload.dark-mode {
    transition: none !important;
}

.bgColor-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: opacity 1s ease;
}

.bgColor-btn img {
    width: 17px;
    transition: opacity 1s ease;
}

@media screen and (max-width:910px) {
    .bgColor-btn {
        gap: 7px;
    }
}


/* 共通の初期状態（ライトモード）で白文字にしておく */

.copy__sp--top {
    color: black;
    transition: color 0.5s ease;
}


/* ダークモードでは通常は白文字になるけど、
   .copy 要素だけは黒文字にしたいので例外として上書き */

body.dark-mode .copy__sp--top {
    color: white;
}

body.dark-mode .hamburger-overlay__line {
    background-color: var(--white-color);
}

#iconImg {
  transition: opacity 1s ease;
}

/*====================
sns_links
====================*/
.snsLink {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    right: -3%;
    display: flex;
    transform: rotate(90deg);
    align-items: center;
    gap: 20px;
}

.snsLink__txt {
    font-size: 1.4rem;
    line-height: 1.2;
    letter-spacing: 2px;
    display: flex;
    gap: 20px;
    align-items: center;
}

.snsLink__txt::after {
    content: '';
    width: 20px;
    height: 1px;
    display: block;
    background-color: var(--primary-black, #333A3A);
    transform: translateY(-50%);
    transition: background-color 1s ease, color 1s ease;
}

body.dark-mode .snsLink__txt::after {
    background-color: white;
}

.snsLink__img {
    width: 18px;
    height: auto;
    transform: rotate(-90deg);
    transition: opacity 1s ease;
}

/* 通常時のフェードアニメーション */
.about__sns__img img,
.snsLink__img img {
  transition: opacity 0.3s ease;
  opacity: 1;
}

/* ページ読み込み直後（preload時）は transition を無効に */
body.preload .about__sns__img img,
body.preload .snsLink__img img {
  transition: none;
  opacity: 1;
}

@media screen and (max-width:1500px) {
    .snsLink {
        right: -5%;
    }
}
@media screen and (max-width:1200px) {
    .snsLink {
        right: -8%;
    }
}

@media screen and (max-width:910px) {
    .snsLink {
        right: -10%;
        gap: 15px;
    }
    .snsLink__txt {
        font-size: 1.2rem;
        line-height: 1;
        gap: 15px;
    }
    .snsLink__txt::after {
        width: 15px;
        height: 1px;
    }
    .snsLink__img {
        width: 14px;
    }
}

@media screen and (max-width:600px) {
    .snsLink {
        right: -15%;
    }
}

@media screen and (max-width:600px) {
    .snsLink {
        right: -15%;
    }
}

@media screen and (max-width:400px) {
    .snsLink {
        right: -22%;
    }
}


/*====================
Nav
====================*/

.hamburger-overlay {
    position: relative;
    z-index: 1000;
    width: 38px;
    height: 38px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: none;
}

@media screen and (max-width:910px) {
    .hamburger-overlay {
        display: block;
    }
}

.hamburger-overlay__line {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: 2px;
    background-color: var(--dark-color);
    transition: all .6s;
}

.hamburger-overlay__line:nth-of-type(1) {
    top: 10px;
}

.hamburger-overlay__line:nth-of-type(2) {
    top: 19px;
}

.hamburger-overlay__line:nth-of-type(3) {
    top: 28px;
}

.hamburger-overlay.active .hamburger-overlay__line {
    background-color: black;
}

.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(1) {
    transform: translateY(9px) rotate(-45deg);
}

.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(2) {
    opacity: 0;
}

.hamburger-overlay.active .hamburger-overlay__line:nth-of-type(3) {
    transform: translateY(-9px) rotate(45deg);
}

.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(var(--vh) * 100);
    background-color: var(--white-color);
    visibility: hidden;
    opacity: 0;
    transition: all .6s;
    z-index: 900;
}

.nav-overlay.active {
    visibility: visible;
    opacity: 1;
}

.nav-overlay__content {
    position: absolute;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    width: 100%;
}

.nav-overlay__list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-overlay__item {
    opacity: 0;
    transform: translateY(20px);
    transition: all .6s;
}

.nav-overlay.active .nav-overlay__item {
    opacity: 1;
    transform: translateY(0);
}

.nav-overlay.active .nav-overlay__item:nth-child(1) {
    transition-delay: 0.1s;
}

.nav-overlay.active .nav-overlay__item:nth-child(2) {
    transition-delay: 0.2s;
}

.nav-overlay.active .nav-overlay__item:nth-child(3) {
    transition-delay: 0.3s;
}

.nav-overlay.active .nav-overlay__item:nth-child(4) {
    transition-delay: 0.4s;
}

.nav-overlay.active .nav-overlay__item:nth-child(5) {
    transition-delay: 0.5s;
}
.nav-overlay.active .nav-overlay__item:nth-child(6) {
    transition-delay: 0.6s;
}

.nav-overlay__link {
    display: inline-block;
    transition: color .3s;
}

.nav-overlay__item {
    margin-top: 40px;
    color: black;
    font-size: 1.6rem;
    text-decoration: none;
}

.nav-overlay__item:first-of-type {
    margin-top: 0;
}

.nav-overlay__item:nth-child(3) {
    margin-top: 20px;
}

.nav-overlay__subItem {
    font-size: 1.4rem;
    margin-top: 20px;
    display: flex;
    align-items: center;
}

.nav-overlay__subItem::before {
    display: inline-block;
    content: '';
    width: 20px;
    height: 1px;
    background-color: var(--dark-color);
    margin-right: 15px;
}

/* ダークモード */

body.dark-mode .hamburger-overlay__line {
    background-color: var(--white-color) !important;
}

body.dark-mode .nav-overlay {
    background-color: var(--dark-color) !important;
}
body.dark-mode .nav-overlay__item {
    color: var(--white-color) !important;
}
body.dark-mode .nav-overlay__subItem::before {
    background-color: var(--white-color) !important;
}

/* nav */


.works__wrapper {
    padding: 60px 11.11% 60px 0;
}

.works__title {
    color: var(--primary-gray, #b6b6b6);
    text-align: center;
    font-family: Montserrat;
    font-size: 3.2rem;
    font-weight: 200;
    line-height: 1;
    letter-spacing: 2px;
}

.works__contents {
    margin-top: 60px;
}

.works__item {
    margin-top: 60px;
    display: flex;
    gap: 4.17%;
}

.works__verticalItem {
    width: 50%;
}

@media screen and (max-width:1200px) {
    .works__title {
        font-size: 2.4rem;
    }
}

@media screen and (max-width:910px) {
    .works__wrapper {
        padding: 60px 5.33% 0 5.33%;
        margin-top: 40px;
    }

    .works__title {
        font-size: 2.2rem;
    }

    .works__contents {
        margin-top: 40px;
    }
    .works__item {
        margin-top: 40px;
        gap: 4.17%;
    }
}

.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: calc(var(--vh) * 100);
  z-index: 1000;
  background-color: var(--white-color) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeOut 2.5s 2.8s forwards;
}

body.dark-mode .loading {
    background-color: var(--dark-color) !important;
}

@keyframes fadeOut {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    visibility: hidden;
  }
}

.loading__txt {
  opacity: 0;
  animation: logo_fade 2s 0.5s forwards;
  font-size: 3.3rem;
  letter-spacing: 3.5px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.loading__txt span {
    font-size: 1.1rem;
    letter-spacing: 11px;
    padding: 5px 0 0 5px;
    color: var(--primary-gray);
}

@keyframes logo_fade {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }

  60% {
    opacity: 1;
    transform: translateY(0);
  }

  100% {
    opacity: 0;
  }
}

.hoverItem {
    transition: 0.3s;
}

@media (hover: hover) and (pointer: fine) {
	.hoverItem:hover {
        opacity: 0.6;
        transition: 0.3s;
    }
}