@charset "UTF-8";

*,
*::before,
*::after{
box-sizing:border-box;
}

:root{
--color-main:#050506;
--color-accent:#2b3558;
--color-accent-soft:rgba(43,53,88,.28);
--color-sub:#ebeceb;
--color-text:#f7f6f2;
--color-text-muted:rgba(247,246,242,.72);
--color-text-faint:rgba(247,246,242,.46);
--color-border:rgba(255,255,255,.12);
--color-border-strong:rgba(255,255,255,.2);
--color-panel:rgba(255,255,255,.04);
--color-panel-strong:rgba(255,255,255,.07);
--color-shadow:rgba(0,0,0,.24);
--font-main:"Noto Serif JP", serif;
--font-sans:"Noto Sans JP", sans-serif;
--container:1200px;
--transition:.4s ease;
}

html{
scroll-behavior:smooth;
}

body{
margin:0;
color:var(--color-text);
background:var(--color-main);
font-family:var(--font-sans);
line-height:1.75;
overflow-x:hidden;
-webkit-font-smoothing:antialiased;
text-rendering:optimizeLegibility;
}

body.is-loading{
overflow:hidden;
}

img,
video{
max-width:100%;
height:auto;
vertical-align:bottom;
}

a{
color:inherit;
text-decoration:none;
}

button,
input,
textarea,
select{
font:inherit;
}

.page-bg{
position:fixed;
inset:0;
background:
radial-gradient(circle at 12% 18%, rgba(43,53,88,.24), transparent 24%),
radial-gradient(circle at 84% 22%, rgba(255,255,255,.06), transparent 18%),
linear-gradient(180deg, #0a0a0d 0%, #040405 100%);
z-index:-3;
}

.page-bg::before{
content:"";
position:absolute;
inset:0;
background:
linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px),
linear-gradient(180deg, rgba(255,255,255,.018) 1px, transparent 1px);
background-size:40px 40px;
mask-image:linear-gradient(180deg, rgba(0,0,0,.26), rgba(0,0,0,0));
pointer-events:none;
}

.page-bg::after{
content:"";
position:absolute;
left:-140px;
bottom:-140px;
width:360px;
height:360px;
border-radius:50%;
background:radial-gradient(circle, rgba(117,132,190,.14) 0%, rgba(117,132,190,0) 72%);
pointer-events:none;
}

/* loading */
.loading{
position:fixed;
inset:0;
z-index:9999;
display:flex;
align-items:center;
justify-content:center;
background:
radial-gradient(circle at 50% 40%, rgba(43,53,88,.16), transparent 34%),
linear-gradient(180deg, #0b0b10 0%, #000000 100%);
transition:opacity .9s ease, visibility .9s ease, transform 1s ease;
}

.loading.is-hidden{
opacity:0;
visibility:hidden;
pointer-events:none;
transform:translateY(-2%);
}

.loading__inner{
display:flex;
flex-direction:column;
align-items:center;
justify-content:center;
gap:18px;
text-align:center;
}

.loading__logo{
width:88px;
opacity:0;
transform:scale(.86);
filter:drop-shadow(0 0 24px rgba(255,255,255,.08));
animation:loadingLogoIn 1.2s cubic-bezier(.22,1,.36,1) forwards;
}

.loading__text{
margin:0;
font-size:12px;
letter-spacing:.22em;
text-transform:uppercase;
color:rgba(247,247,243,.68);
opacity:0;
animation:loadingTextIn 1s ease .35s forwards;
}

.loading::after{
content:"";
position:absolute;
left:50%;
bottom:18%;
transform:translateX(-50%);
width:1px;
height:60px;
background:linear-gradient(180deg, rgba(255,255,255,.55) 0%, rgba(255,255,255,0) 100%);
opacity:.45;
animation:loadingLine 1.8s ease-in-out infinite;
}

@keyframes loadingLogoIn{
0%{
opacity:0;
transform:scale(.86);
filter:blur(6px);
}
60%{
opacity:1;
transform:scale(1);
filter:blur(0);
}
100%{
opacity:1;
transform:scale(1);
filter:blur(0);
}
}

@keyframes loadingTextIn{
0%{
opacity:0;
transform:translateY(8px);
}
100%{
opacity:1;
transform:translateY(0);
}
}

@keyframes loadingLine{
0%,100%{
transform:translateX(-50%) scaleY(.35);
transform-origin:top center;
opacity:.2;
}
50%{
transform:translateX(-50%) scaleY(1);
transform-origin:top center;
opacity:.55;
}
}

/* header */
.site-header{
position:fixed;
top:0;
left:0;
width:100%;
z-index:100;
transition:background var(--transition), border-color var(--transition), backdrop-filter var(--transition), transform var(--transition);
}

.site-header.is-scrolled{
background:rgba(8,8,10,.72);
backdrop-filter:blur(16px);
border-bottom:1px solid rgba(255,255,255,.08);
}

.site-header__inner,
.site-footer__inner,
.hero__grid,
.section-heading,
.about-home__grid,
.services-home__grid,
.works-home__grid,
.process-line,
.contact-card,
.explore__grid{
width:min(calc(100% - 48px), var(--container));
margin-inline:auto;
}

.site-header__inner{
min-height:84px;
display:flex;
align-items:center;
justify-content:space-between;
gap:20px;
}

.site-logo{
display:flex;
align-items:center;
gap:12px;
flex-shrink:0;
}

.site-logo__mark{
width:18px;
height:18px;
display:flex;
align-items:center;
justify-content:center;
flex-shrink:0;
}

.site-logo__mark img{
width:18px;
height:18px;
object-fit:contain;
}

.site-logo__text{
font-size:14px;
font-weight:600;
letter-spacing:.04em;
}

.site-nav{
display:flex;
align-items:center;
gap:28px;
}

.site-nav a{
font-size:14px;
color:var(--color-text-muted);
position:relative;
transition:color var(--transition);
}

.site-nav a::after{
content:"";
position:absolute;
left:0;
bottom:-6px;
width:100%;
height:1px;
background:#fff;
transform:scaleX(0);
transform-origin:right center;
transition:transform var(--transition);
}

.site-nav a:hover,
.site-nav a.is-current{
color:#fff;
}

.site-nav a:hover::after,
.site-nav a.is-current::after{
transform:scaleX(1);
transform-origin:left center;
}

.site-actions{
display:flex;
align-items:center;
gap:14px;
}

.lang-switch{
display:flex;
align-items:center;
padding:4px;
border:1px solid var(--color-border);
border-radius:999px;
background:rgba(255,255,255,.03);
}

.lang-switch__btn{
border:none;
background:transparent;
color:var(--color-text-muted);
padding:8px 12px;
border-radius:999px;
cursor:pointer;
transition:background var(--transition), color var(--transition);
}

.lang-switch__btn.is-active{
background:#fff;
color:#000;
}

.header-cta,
.btn{
display:inline-flex;
align-items:center;
justify-content:center;
gap:10px;
min-height:50px;
padding:0 24px;
border-radius:999px;
transition:
transform var(--transition),
background var(--transition),
border-color var(--transition),
color var(--transition),
box-shadow var(--transition),
filter var(--transition);
white-space:nowrap;
}

.header-cta,
.btn--primary{
color:#fff;
background:linear-gradient(135deg, #232d4d 0%, #14131d 100%);
box-shadow:0 12px 32px rgba(20,19,29,.35);
}

.header-cta:hover,
.btn--primary:hover{
transform:translateY(-2px);
box-shadow:0 18px 36px rgba(20,19,29,.42);
filter:brightness(1.04);
}

.btn--ghost{
border:1px solid var(--color-border);
background:rgba(255,255,255,.03);
}

.btn--ghost:hover{
background:rgba(255,255,255,.08);
transform:translateY(-2px);
border-color:var(--color-border-strong);
}

.menu-toggle{
display:none;
width:48px;
height:48px;
border:1px solid var(--color-border);
background:rgba(255,255,255,.04);
border-radius:999px;
cursor:pointer;
padding:0;
position:relative;
}

.menu-toggle span{
position:absolute;
left:50%;
width:18px;
height:1.5px;
background:#fff;
transform:translateX(-50%);
transition:transform var(--transition), opacity var(--transition), top var(--transition);
}

.menu-toggle span:nth-child(1){top:16px;}
.menu-toggle span:nth-child(2){top:23px;}
.menu-toggle span:nth-child(3){top:30px;}

.menu-toggle.is-active span:nth-child(1){
top:23px;
transform:translateX(-50%) rotate(45deg);
}
.menu-toggle.is-active span:nth-child(2){
opacity:0;
}
.menu-toggle.is-active span:nth-child(3){
top:23px;
transform:translateX(-50%) rotate(-45deg);
}

/* common */
.section{
position:relative;
padding:120px 0;
}

.section-heading{
display:grid;
gap:10px;
margin-bottom:44px;
}

.section-heading h2{
margin:0;
width: 100%;
font-family:var(--font-main);
font-size:clamp(2rem, 4vw, 3.8rem);
line-height:1.18;
letter-spacing:-.02em;
text-wrap:balance;
}

.eyebrow,
.section-heading__en,
.work-home-card__category,
.hero-card__label{
font-size:12px;
letter-spacing:.18em;
text-transform:uppercase;
color:#c8ccda;
}

.section-actions{
width:min(calc(100% - 48px), var(--container));
margin:28px auto 0;
}

.text-link{
display:inline-flex;
align-items:center;
gap:10px;
margin-top:10px;
font-size:14px;
color:#fff;
}

.text-link::after{
content:"→";
transition:transform var(--transition);
}

.text-link:hover::after{
transform:translateX(4px);
}

/* hero */
.hero{
min-height:100svh;
display:flex;
align-items:center;
padding:140px 0 84px;
position:relative;
overflow:hidden;
}

.hero-video{
position:absolute;
inset:0;
z-index:-2;
}

.hero-video video{
width:100%;
height:100%;
object-fit:cover;
transform:scale(1.08);
filter:blur(2px) brightness(.5) saturate(.88);
}

.hero::after{
content:"";
position:absolute;
inset:0;
background:
linear-gradient(180deg, rgba(0,0,0,.52) 0%, rgba(0,0,0,.64) 100%),
radial-gradient(circle at 80% 20%, rgba(43,53,88,.26), transparent 24%);
z-index:-1;
}

.hero__grid{
display:grid;
grid-template-columns:minmax(0, 1.02fr) minmax(380px, .98fr);
align-items:center;
gap:56px;
width: 80%;
}

.hero__content{
position:relative;
z-index:1;
}

.hero__headline{
display:grid;
gap:4px;
margin-top:16px;
}

.hero__headline--sub{
margin-top:26px;
}

.hero__line{
margin:0;
font-family:var(--font-main);
font-size:clamp(1rem, 5vw, 2rem);
line-height:1.08;
letter-spacing:-.03em;
text-wrap:balance;
}

.hero__line--lead{
text-shadow:0 0 20px rgba(255,255,255,.04);
}

.hero__title{
margin:34px 0 0;
font-family:var(--font-main);
font-size: clamp(1.2rem, 5.6vw, 2.5rem);
line-height:1.05;
letter-spacing:-.04em;
}

.hero__lead{
max-width:600px;
margin:26px 0 0;
font-size:14px;
color:var(--color-text-muted);
}

.hero__buttons{
display:flex;
flex-wrap:wrap;
gap:16px;
margin-top:34px;
}

.hero__note{
margin:18px 0 0;
font-size:13px;
color:var(--color-text-faint);
}

.hero__visual{
position:relative;
min-height:560px;
}

.hero-card{
position:absolute;
border:1px solid rgba(255,255,255,.11);
background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
backdrop-filter:blur(18px);
box-shadow:0 24px 80px rgba(0,0,0,.28);
}

.hero-card--main{
inset:44px 0 84px 36px;
border-radius:30px;
padding:34px;
overflow:hidden;
}

.hero-card--main::after{
content:"";
position:absolute;
inset:auto -70px -90px auto;
width:240px;
height:240px;
border-radius:50%;
background:radial-gradient(circle, rgba(26,44,96,.65) 0%, rgba(26,44,96,0) 70%);
}

.hero-card--main h2{
margin:16px 0 0;
font-family:var(--font-main);
font-size:clamp(2rem, 3vw, 3rem);
line-height:1.16;
}

.hero-card--sub{
min-height:88px;
display:flex;
align-items:center;
border-radius:20px;
padding:0 22px;
font-size:14px;
color:#f1f2f7;
}

.hero-card--left{
left:0;
bottom:24px;
width:290px;
}

.hero-card--right{
right:0;
top:0;
width:318px;
}

.scroll-indicator{
position:absolute;
left:50%;
bottom:28px;
transform:translateX(-50%);
display:grid;
justify-items:center;
gap:10px;
color:var(--color-text-muted);
font-size:12px;
z-index:2;
}

.scroll-indicator span{
width:1px;
height:44px;
background:linear-gradient(180deg, rgba(255,255,255,.7), rgba(255,255,255,0));
animation:scrollLine 1.8s infinite ease-in-out;
}

@keyframes scrollLine{
0%,100%{
transform-origin:top center;
transform:scaleY(.25);
}
50%{
transform-origin:top center;
transform:scaleY(1);
}
}

/* scene pin */
.scene-pin{
min-height:100svh;
padding:0;
position:relative;
overflow:hidden;
}

.scene-pin__bg{
position:absolute;
inset:0;
z-index:-2;
}

.scene-pin__bg img{
width:100%;
height:100%;
object-fit:cover;
filter:brightness(.3) saturate(.82);
transform:scale(1.04);
}

.scene-pin::after{
content:"";
position:absolute;
inset:0;
z-index:-1;
background:
linear-gradient(180deg, rgba(0,0,0,.62) 0%, rgba(0,0,0,.72) 100%),
radial-gradient(circle at 18% 20%, rgba(43,53,88,.28), transparent 24%);
}

.scene-pin__inner{
width:min(calc(100% - 48px), var(--container));
min-height:100svh;
margin-inline:auto;
display:flex;
align-items:center;
padding:140px 0 96px;
}

.scene-pin__content{
width: 100%;
}

.scene-pin__eyebrow{
margin:0;
font-size:12px;
letter-spacing:.18em;
text-transform:uppercase;
color:#c8ccda;
}

.scene-pin__title{
margin:18px 0 0;
font-family:var(--font-main);
font-size: clamp(2rem, 4vw, 3.8rem);
line-height:1.08;
letter-spacing:-.03em;
text-wrap:balance;
}

.scene-pin__lead{
margin:26px 0 0;
font-size:18px;
color:#eef0f6;
}

.problem-list{
display:grid;
grid-template-columns:repeat(3, minmax(0, 1fr));
gap:18px;
margin-top:34px;
}

.problem-item{
min-height:110px;
display:flex;
align-items:center;
padding:24px;
border-radius:24px;
border:1px solid rgba(255,255,255,.12);
background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
backdrop-filter:blur(14px);
}

.problem-item p{
margin:0;
font-size:18px;
line-height:1.5;
color:#f5f5f2;
}

/* about */
.about-home__grid{
display:grid;
grid-template-columns:minmax(0, 1fr) minmax(320px, 420px);
gap:36px;
align-items:start;
}

.about-home__text p{
margin:0 0 18px;
font-size:16px;
color:var(--color-text-muted);
}

.about-home__cards{
display:grid;
gap:16px;
}

.about-home__card,
.service-home-card,
.work-home-card,
.process-step,
.contact-card,
.explore-card{
border:1px solid var(--color-border);
background:var(--color-panel);
backdrop-filter:blur(16px);
}

.about-home__card{
border-radius:24px;
padding:26px;
}

.about-home__num,
.service-home-card__index,
.process-step__num{
display:inline-flex;
min-width:42px;
min-height:42px;
align-items:center;
justify-content:center;
border-radius:999px;
border:1px solid rgba(255,255,255,.18);
font-size:12px;
letter-spacing:.08em;
color:#cfd5ea;
}

.about-home__card h3,
.service-home-card h3,
.process-step h3,
.work-home-card h3{
margin:18px 0 8px;
font-size:24px;
font-family:var(--font-main);
line-height:1.2;
}

.about-home__card p,
.service-home-card p,
.process-step p,
.work-home-card p,
.contact-card__text p,
.explore-card p{
margin:0;
color:var(--color-text-muted);
}

/* services */
.services-home__grid{
display:grid;
grid-template-columns:repeat(12, 1fr);
gap:20px;
}

.service-home-card{
grid-column:span 6;
min-height:250px;
border-radius:28px;
padding:28px;
transition:transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.service-home-card:hover{
transform:translateY(-4px);
border-color:rgba(255,255,255,.2);
background:var(--color-panel-strong);
box-shadow:0 18px 36px rgba(0,0,0,.18);
}

.service-home-card p{
margin-top:18px;
font-size:13px;
letter-spacing:.16em;
text-transform:uppercase;
color:#c8ccda;
}

/* works */
.works-home__grid{
display:grid;
grid-template-columns:repeat(2, minmax(0, 1fr));
gap:22px;
}

.work-home-card{
border-radius:28px;
overflow:hidden;
transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.work-home-card:hover{
transform:translateY(-4px);
border-color:rgba(255,255,255,.18);
box-shadow:0 20px 40px rgba(0,0,0,.18);
}

.work-home-card__image{
overflow:hidden;
}

.work-home-card__image img{
width:100%;
height:320px;
object-fit:cover;
transition:transform .8s ease;
}

.work-home-card:hover .work-home-card__image img{
transform:scale(1.04);
}

.work-home-card__body{
padding:22px;
}

.work-home-card__body h3{
margin:12px 0 10px;
}

/* process */
.process-line{
display:grid;
grid-template-columns:repeat(4, 1fr);
gap:18px;
position:relative;
}

.process-line::before{
content:"";
position:absolute;
left:8%;
right:8%;
top:21px;
height:1px;
background:linear-gradient(90deg, rgba(255,255,255,.08), rgba(255,255,255,.22), rgba(255,255,255,.08));
z-index:0;
}

.process-step{
border-radius:24px;
padding:26px;
position:relative;
overflow:hidden;
z-index:1;
}

.process-step::after{
content:"";
position:absolute;
inset:auto -20px -40px auto;
width:110px;
height:110px;
border-radius:50%;
background:radial-gradient(circle, rgba(255,255,255,.12) 0%, rgba(255,255,255,0) 72%);
}

/* explore */
.explore__grid{
display:grid;
grid-template-columns:repeat(4, minmax(0, 1fr));
gap:18px;
}

.explore-card{
display:flex;
flex-direction:column;
justify-content:space-between;
min-height:220px;
padding:24px;
border-radius:26px;
position:relative;
overflow:hidden;
transition:transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.explore-card::after{
content:"";
position:absolute;
right:-26px;
bottom:-26px;
width:120px;
height:120px;
border-radius:50%;
background:radial-gradient(circle, rgba(255,255,255,.08), rgba(255,255,255,0) 72%);
}

.explore-card:hover{
transform:translateY(-4px);
border-color:rgba(255,255,255,.2);
background:var(--color-panel-strong);
box-shadow:0 18px 36px rgba(0,0,0,.18);
}

.explore-card__title{
font-family:var(--font-main);
font-size:28px;
line-height:1.2;
}

/* contact */
.contact-card{
width:min(calc(100% - 48px), var(--container));
margin-inline:auto;
border-radius:34px;
padding:34px;
display:grid;
grid-template-columns:1.1fr .9fr;
gap:24px;
align-items:center;
}

.contact-card__text h2{
margin:10px 0 12px;
font-family:var(--font-main);
font-size:clamp(2rem, 3vw, 3.2rem);
line-height:1.15;
}

.contact-card__actions{
display:flex;
justify-content:flex-end;
flex-wrap:wrap;
gap:16px;
}


/* footer */
.site-footer{
padding:0 0 28px;
}

.site-footer__inner{
display:flex;
justify-content:space-between;
gap:16px;
padding-top:20px;
border-top:1px solid rgba(255,255,255,.08);
font-size:13px;
color:var(--color-text-muted);
}

/* reveal */
.reveal{
opacity:0;
transform:translateY(34px);
}

/* responsive */
@media (max-width: 1080px){
.hero__grid,
.contact-card,
.about-home__grid{
grid-template-columns:1fr;
}

.hero__visual{
min-height:500px;
}

.works-home__grid{
grid-template-columns:1fr;
}

.process-line{
grid-template-columns:repeat(2, 1fr);
}

.process-line::before{
display:none;
}

.explore__grid{
grid-template-columns:repeat(2, 1fr);
}

.scene-pin__content{
max-width:none;
}

.problem-list{
grid-template-columns:1fr;
}
}

@media (max-width: 860px){
.site-nav{
position:fixed;
top:84px;
left:24px;
right:24px;
display:grid;
gap:8px;
padding:18px;
border:1px solid rgba(255,255,255,.1);
border-radius:24px;
background:rgba(8,8,10,.94);
backdrop-filter:blur(16px);
transform:translateY(-18px);
opacity:0;
pointer-events:none;
transition:opacity var(--transition), transform var(--transition);
z-index:120;
}

.site-nav.is-open{
opacity:1;
transform:translateY(0);
pointer-events:auto;
}

.site-nav a{
padding:10px 8px;
}

.header-cta{
display:none;
}

.menu-toggle{
display:block;
}

.service-home-card{
grid-column:span 12;
min-height:auto;
}

.hero{
padding-top:126px;
}

.hero__visual{
min-height:420px;
}

.hero-card--main{
inset:28px 0 64px 0;
}

.hero-card--left{
width:220px;
}

.hero-card--right{
width:240px;
}
}

@media (max-width: 640px){
.site-header__inner,
.site-footer__inner,
.hero__grid,
.section-heading,
.about-home__grid,
.services-home__grid,
.works-home__grid,
.process-line,
.contact-card,
.explore__grid,
.section-actions,
.scene-pin__inner{
width:min(calc(100% - 32px), var(--container));
}

.site-logo__text{
font-size:12px;
}

.lang-switch{
margin-left:auto;
}

.section{
padding:88px 0;
}

.hero{
min-height:auto;
padding-bottom:96px;
}

.hero__line{
font-size: 18px;
}

.hero__title{
font-size: 25px;
}

.hero__lead{
font-size:13px;
}

.hero__buttons{
flex-direction:column;
align-items:stretch;
}

.btn,
.header-cta{
width:100%;
}

.hero__visual{
min-height:360px;
}

.hero-card--main{
padding:24px;
}

.hero-card--main h2{
font-size:1.7rem;
}

.hero-card--sub{
min-height:70px;
padding:0 16px;
font-size:12px;
}

.hero-card--left{
width:170px;
left:0;
bottom:16px;
}

.hero-card--right{
width:180px;
right:0;
top:0;
}

.scene-pin__inner{
min-height:auto;
padding:120px 0 88px;
}

.scene-pin__title{
font-size: 24px;
}

.scene-pin__lead{
font-size:14px;
}

.problem-item{
min-height:auto;
}

.problem-item p{
font-size: 14px;
}

.about-home__text p {
    font-size: 14px
}

.section-heading h2 {
    text-wrap: initial;
}

.section-heading h2{
font-size: 25px;
}

.process-line{
grid-template-columns:1fr;
}

.explore__grid{
grid-template-columns:1fr;
}

.contact-card{
padding:24px;
}

.contact-card__actions{
justify-content:flex-start;
}

.site-footer__inner{
flex-direction:column;
}

.loading__logo{
width:68px;
}

.loading__text{
font-size:10px;
letter-spacing:.18em;
}

.loading::after{
height:44px;
bottom:16%;
}
}