@charset "UTF-8";

html { 
    font-size: 16px;
  }
body{
    font-family: "Zen Kaku Gothic New", sans-serif;
    font-weight: 400;
    font-style: normal;
    line-height: 1.5;
    background-color: #F7F6F5
  }
header{
    position: relative; 
  }
ol, ul{
    list-style: none;
    padding: 0;
    margin: 0;
  }
img{
    display: block;
    max-width: 100%;
    height: auto;
  }
a{
    text-decoration: none;
    color: #000;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
  }
a:hover{
    text-decoration: none;
  }
nav{
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 5rem;
    z-index: 9999;
    background: rgba(255,255,255,0.75);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding: 0; 
  }
.drawer{
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    box-sizing: border-box;
  }
.nunito-en {
    font-family: "Nunito", sans-serif;
    font-weight: 500;
    font-style: normal;
  }
.menu{
    position: fixed;
    top: 0;
    right: 0;
    height: 100svh;
    width: min(78vw, 340px);
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-left: 1px solid rgba(0,0,0,0.06);
    padding-top: 6rem;
    z-index: 10000;
    transform: translateX(110%);
    transition: transform .35s ease;
  }
.menu ul{
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 22px;
  }
.menu ul li a {
    display: block;
    font-family: "Nunito", sans-serif;
    font-weight: 500;
    font-size: 1.1rem;
    letter-spacing: 0.08em;
    padding: 14px 8px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    color: #333;
  }
.menu ul li a:hover{
    background-color:rgba(0,0,0,0.5);
    color:#999999;
  }
.menu.open{ 
    transform: translateX(0);
  }
.site_name{
    font-family: "Nunito", sans-serif;
    font-size: 1.3rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: #333;
    white-space: nowrap;
    line-height: 1;
    display: inline-block;
    transition: opacity .3s ease;
  }
.site_name:hover{ 
    opacity: .6; 
  }
.Toggle{
    width: 44px;
    height: 44px;
    position: relative;
    cursor: pointer;
    z-index: 10001;
    right: auto;
  }
.Toggle span{
    position: absolute;
    left: 8px;
    width: 28px;
    border-bottom: solid 2px #333;
    transition: .35s ease;
  }
.Toggle span:nth-child(1){
    top: 14px;
  }
.Toggle span:nth-child(2){
    top: 22px;
  }
.Toggle span:nth-child(3){
    top: 30px;
  }
.Toggle.active span:nth-child(1){
    top: 22px;
    transform: rotate(-45deg);
  }
.Toggle.active span:nth-child(2){
    opacity: 0;
  }
.Toggle.active span:nth-child(3){
    top: 22px;
    transform: rotate(45deg);
  }
.nav_overlay{
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.25);
    opacity: 0;
    pointer-events: none;
    transition: .35s ease;
    z-index: 9998;
  }
.nav_overlay.open{
    opacity: 1;
    pointer-events: auto;
  }
.site_name,
.menu ul li a{
    position: relative;
    display: inline-block;
  }
.site_name::after,
.menu ul li a::after{
    content: "";
    position: absolute;
    inset-inline: 0;
    bottom: -6px;
    block-size: 1px;
    background: #8FA5C3;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .35s ease;
    opacity: .7;
  }
.site_name:hover::after,
.menu ul li a:hover::after{
    transform: scaleX(1);
  }
.FV_area{
    position: relative;
    overflow: hidden;
    background: #f4f4f2;
    height: 100svh;
    padding-top: 5rem;
    box-sizing: border-box;
    display: flex;
  }
.FV_content{
    position: relative;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    height: calc(100svh - 5rem);
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    z-index: 2;
    --bg-y: 52%;
    padding-top: 0;  
  }
.FV_bg{
    position: absolute;
    top: 52%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    font-family: serif;
    font-size: clamp(56px, 18vw, 120px);
    line-height: 1;
    white-space: nowrap;
    color: rgba(0,0,0,0.08);
    z-index: 1;
    pointer-events: none;
  }
.FV_title{
    position: absolute;
    top: calc(var(--bg-y) / 2);
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    text-align: center;
    margin-top: 0;
    z-index: 2;
  }
.FV_title h1{
    font-family: "Nunito", sans-serif;
    font-weight: 500;
    color: #333;
    line-height: 1.15;
    font-size: clamp(36px, 8vw, 48px);
    margin: 0;
  }
.FV_title h1 span{
    display: block;
    font-size: 1rem;
    letter-spacing: 0.2em;
    margin-top: 12px;
    color: #888;
  }
.FV_img{
    z-index: 2;
    width: min(70%, 420px);
    margin-left: auto;
    margin-right: auto;
    margin-top: auto;
    display: flex;
    justify-content: center;
  }
.FV_img img{
    width: 100%;
    height: auto;
    display: block;
  }
main{
    width: min(80%, 1100px);
    margin-inline: auto;
  }
h2{
    font-size: 2rem;
    text-align: center;
    text-decoration: underline 5px #8FA5C3;
    text-underline-offset: 8px;
    margin: 0 0 45px 0;
    font-family: "Nunito", sans-serif;
    font-weight: 500;
    font-style: normal;
  }
.about_wrap{
    width: 100%;
    height: auto;
  }
.content_area{
    width: 100%;
    margin: 0;
    padding-block: 48px;
  }
.about_section{
    width: 100%;
    margin: 0;
    padding-block: 112px;
  }
.about_inner{
    display: flex;
    flex-direction: column;
    gap: 48px;
  }
.about_photo img{
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.04);
  }
.about_catch{
    font-size: 1.9rem;
    font-weight: 600;
    line-height: 1.5;
    padding-bottom: 16px;
    margin-bottom: 24px;
    border-bottom: 1px solid #c3cfe4;
  }
.about_summary{
    line-height: 1.9;
    color: #555;
    margin-bottom: 32px;
    font-size: 1rem;
  }
.about_keywords{
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
    display: flex;
  }
.about_keywords li{
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    padding: 6px 16px;
    background: #e2e9f3;
    border-radius: 100px;
    display: inline-flex;
  }
.about_more{
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    border-bottom: 1px solid #333;
    padding-bottom: 3px;
    transition: 0.3s;
    font-family: "Nunito", sans-serif;
  }
.about_more:hover{
    opacity: 0.6;
  }
.works_section{
    padding-block: clamp(72px, 9vw, 96px);
  }
.section_header{
    text-align: center;
    margin-bottom: 64px;
  }
.section_title{
    font-family:"Nunito", sans-serif;
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 600;
    margin: 0 0 12px 0;
    letter-spacing: 0.04em;
    text-decoration: none;
    position: relative;
  }
.section_subtitle{
    font-family: "Nunito", sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.3em;
    color: #888;
  }
.works_grid{
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 48px;
  }
.work_card{
    background: #f6f6f6;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,0.04);
  }
.work_thumb{
    overflow: hidden;
    border-radius: 16px 16px 0 0;
  }
.work_thumb img{
    width: 100%;
    display: block;
  }
.work_info{
    padding: 32px;
    display: flex;
    flex-direction: column;
    background: #ffffff;
  }
.work_title{
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
  }
.work_category{
    font-size: 0.85rem;
    color: #777;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
  }
.work_link{
    align-self: flex-end;
    margin-top: 16px;
    font-size: 0.9rem;
    font-family: "Nunito", sans-serif;
    letter-spacing: 0.1em;
    color: #333;
    border-bottom: 1px solid #333;
    padding-bottom: 2px;
    transition: 0.3s ease;
  }
.work_link:hover{ opacity: 0.6; }
.footer{
    padding: 96px 0 48px;
    background: #f4f4f2;
    text-align: center;
  }
.footer_inner{
    width: min(80%, 1100px);
    margin-inline: auto;
    display: grid;
    place-items: center;
    gap: 12px;
    text-align: center;
  }
.footer_inner > *{
    margin: 0;
    line-height: 1.4;
  }
.footer_contact{
    font-family: "Nunito", sans-serif;
    font-size: 1.5rem;
    margin-bottom: 16px;
  }
.footer_mail{
    display: inline-block;
    font-size: 1rem;
    margin-bottom: 32px;
    border-bottom: 1px solid #333;
    padding-bottom: 3px;
    transition: 0.3s;
  }
.footer_mail:hover{ opacity: 0.6; }
.footer_copy{
    font-size: 0.8rem;
    color: #888;
    letter-spacing: 0.1em;
  }

@media screen and (max-width: 767px){
  body{
      font-size: 80%;
    }
}

@media screen and (min-width: 768px){
  header::after{
      display:none;
    }
  nav{
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 80px;
      box-sizing: border-box;
    }
  .drawer{
      padding: 0;
      margin: 0;
    }
  .Toggle{
      display: none;
    }
  .nav_overlay{ 
      display: none; 
    }
  .menu{
      position: static;
      height: auto;
      width: auto;
      padding-top: 0;
      border-left: none;
      background: transparent;
      backdrop-filter: none;
      transform: none;
      transition: none;
    }
  .menu ul{
      height: 5rem;
      flex-direction: row;
      align-items: center;
      justify-content: flex-end;
      gap: 32px;
      padding: 0;
    }
  .menu ul li a{
      padding: 0;
      border-bottom: none;
    }
  .menu ul li a:hover{
      background-color:transparent;
    }
  .FV_area{
      min-height: calc(100vh - 5rem);
      align-items: stretch;
    }
  .FV_content{
      flex-direction: row;
      justify-content: space-between;
      align-items: stretch;
      min-height: calc(100vh - 5rem);
    }
  .FV_bg{
      font-size: clamp(120px, 10vw, 160px);
      top: 52%;
      color: rgba(0,0,0,0.08);
    }
  .FV_title{
      position: absolute;
      top: 52%;
      left: 0;
      transform: translateY(-100%);
      width: 50%;
      text-align: left;
      z-index: 2;
    }
  .FV_title h1{
      font-size: clamp(52px, 4.5vw, 72px);
      line-height: 1.1;
    }
  .FV_title h1 span{
      position: static;
      transform: none;
      margin-top: 16px;
      display: block;
    }
  .FV_img{
      width: 32%;
      margin: 0;
      margin-left: auto;
      align-self: flex-end;
      justify-content: flex-end;
    }
    .FV_img img{
      display: block;
    }
  .content_area{
      padding: 64px 0;
    }
  h2{
      font-size: 3rem;
      text-underline-offset: 12px;
      margin: 0 0 65px 0;
    }
  .about_inner{
      align-items: center;
      gap: 80px;
      flex-direction: row;
    }
  .about_photo{
      flex: 0 0 40%;
    }
  .about_content{
      flex: 1;
    }
  .about_maincontent{
      display: flex;
    }
  .works_grid{
      grid-template-columns: repeat(2, 1fr);
      gap: 64px;
    }
}