/* =========================================================
   COMMON
========================================================= */

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
    overflow-x:hidden;
    width:100%;
}

body{
    font-family:"Pretendard",-apple-system,BlinkMacSystemFont,sans-serif;
    background:#fff;
    color:#111;
    overflow-x:hidden;
    width:100%;
    position:relative;
    -webkit-font-smoothing:antialiased;
}

::selection{
    background:#111;
    color:#fff;
}

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

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


/* =========================================================
   HEADER
========================================================= */

header{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    overflow:visible;
    padding:34px 64px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    z-index:999;

    transition:
        background .35s ease,
        backdrop-filter .35s ease,
        -webkit-backdrop-filter .35s ease,
        border-color .35s ease;
}

header.active{
    background:rgba(255,255,255,.72);

    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);

    border-bottom:1px solid rgba(0,0,0,.05);
}

.logo{
    font-size:30px;
    font-weight:900;
    letter-spacing:-0.03em;
}

nav{
    display:flex;
    gap:44px;
}

nav a{
    font-size:15px;
    font-weight:500;
    letter-spacing:-0.01em;
}

nav a:hover{
    opacity:.45;
}


/* =========================================================
   HERO LIGHT
   LIGHT GRAY + SOFT DEEP GREEN
========================================================= */

.hero{
    position:relative;
    isolation:isolate;
    overflow:hidden;
}

.hero-light{
    position:absolute;

    z-index:0;

    width:72vw;
    height:78vh;

    right:-14vw;
    top:8vh;

    pointer-events:none;

    opacity:.82;

    filter:blur(52px);

    transform:translate3d(4%,0,0) scale(1);

    background:

        radial-gradient(
            ellipse 30% 36% at 70% 44%,
            rgba(63,84,72,.095) 0%,
            rgba(63,84,72,.065) 25%,
            rgba(63,84,72,.025) 48%,
            rgba(63,84,72,0) 72%
        ),

        radial-gradient(
            ellipse 60% 54% at 62% 48%,
            rgba(125,130,128,.095) 0%,
            rgba(145,148,146,.065) 30%,
            rgba(170,173,171,.035) 50%,
            rgba(255,255,255,0) 76%
        );

    animation:
        heroLightFlow 8s ease-in-out infinite alternate;
}

.hero-light::after{
    content:"";

    position:absolute;

    inset:-18%;

    background:

        radial-gradient(
            ellipse 30% 42% at 76% 52%,
            rgba(255,255,255,.36) 0%,
            rgba(255,255,255,.15) 30%,
            rgba(255,255,255,0) 70%
        );

    filter:blur(28px);

    animation:
        heroLightPulse 6s ease-in-out infinite alternate;
}

.hero-inner{
    position:relative;
    z-index:3;
}


/* =========================================================
   HERO LIGHT MOTION
========================================================= */

@keyframes heroLightFlow{

    0%{
        transform:
            translate3d(5%,-2%,0)
            scale(1);
    }

    50%{
        transform:
            translate3d(-2%,3%,0)
            scale(1.055);
    }

    100%{
        transform:
            translate3d(-7%,-1%,0)
            scale(1.02);
    }
}

@keyframes heroLightPulse{

    0%{
        transform:
            translate3d(5%,-2%,0)
            scale(.92);

        opacity:.48;
    }

    50%{
        transform:
            translate3d(-2%,2%,0)
            scale(1.04);

        opacity:.72;
    }

    100%{
        transform:
            translate3d(-7%,-1%,0)
            scale(.96);

        opacity:.42;
    }
}


/* =========================================================
   HERO 3D GRAPHIC
   Three.js wireframe
========================================================= */

.hero-3d{
    position:absolute;

    inset:0;

    width:100%;
    height:100%;

    z-index:2;

    pointer-events:none;
    overflow:visible;

    will-change:transform;

    animation:hero3dFloat 7s ease-in-out infinite alternate;
}

.hero-3d canvas{
    width:100% !important;
    height:100% !important;

    display:block;

    opacity:.78;
}


/* =========================================================
   HERO 3D MOTION
========================================================= */

@keyframes hero3dFloat{

    0%{
        transform:
            translate3d(-3px,2px,0);
    }

    50%{
        transform:
            translate3d(4px,-5px,0);
    }

    100%{
        transform:
            translate3d(-2px,4px,0);
    }
}


/* =========================================================
   HERO
========================================================= */

.hero{

    height:100vh;

    min-height:720px;

    display:block;

    padding:0;

    position:relative;
}

.hero-inner{

    position:relative;

    width:100%;

    height:100%;

    max-width:none;

    min-width:0;

    margin:0;
}


/* =========================================================
   HERO MAIN COPY
========================================================= */

.hero h1{

    position:absolute;

    z-index:4;

    left:2.5%;

    top:26%;

    width:95%;

    margin:0;

    font-size:clamp(72px,7vw,118px);

    font-weight:900;

    line-height:.90;

    letter-spacing:-0.045em;

    color:#111;

    opacity:0;

    transform:translateY(40px);

    animation:fade .8s .15s forwards;
}

.hero h1 .title-line-1{
    display:block;
    text-align:left;
}

.hero h1 .title-line-2{
    display:block;

    position:relative;

    left:-245px;
    top:26px;

    width:max-content;

    text-align:left;

    margin-left:48%;
}


/* =========================================================
   HERO MESSAGE COMMON
========================================================= */

.hero-message{

    position:absolute;

    z-index:4;

    margin:0;

    color:#111;
}

.hero-message h2{

    margin:0 0 14px;

    font-size:24px;

    line-height:1.1;

    font-weight:700;

    letter-spacing:-.035em;
}

.hero-message p{

    margin:0;

    font-size:16px;

    line-height:1.7;

    color:#666;

    letter-spacing:-.025em;
}


/* =========================================================
   BETTER UX
========================================================= */

.hero-message-ux{

    left:4%;

    top:57%;

    opacity:0;

    transform:translateY(30px);

    animation:fade .8s .35s forwards;
}


/* =========================================================
   BETTER UI
========================================================= */

.hero-message-ui{

    left:42%;

    top:68%;

    opacity:0;

    transform:translateY(30px);

    animation:fade .8s .55s forwards;
}

.hero-message-ui p{

    white-space:nowrap;
}


/* =========================================================
   HERO ACTION
========================================================= */

.hero-action{

    margin-top:62px;

    display:flex;

    flex-direction:column;

    align-items:flex-start;

    gap:18px;
}

.cta{

    font-size:15px;

    font-weight:600;

    display:flex;

    align-items:center;

    gap:8px;
}

.cta span{

    transition:.25s;
}

.cta:hover span{

    transform:translateX(8px);
}

.portfolio{

    font-size:15px;

    color:#888;

    transition:.25s;
}

.portfolio:hover{

    color:#111;
}


/* =========================================================
   SCROLL
========================================================= */

.scroll{
    display:none !important;
}


/* =========================================================
   COMMON SECTION
========================================================= */

section{

    padding:180px 64px;
}

.container{

    max-width:1280px;

    width:100%;

    margin:auto;

    position: relative;
}


/* =========================================================
   ANIMATION
========================================================= */

@keyframes fade{

    to{

        opacity:1;

        transform:translateY(0);
    }
}

@keyframes float{

    0%,100%{

        transform:translateY(0);
    }

    50%{

        transform:translateY(8px);
    }
}


/* =========================================================
   SERVICE (섹션 전체 배경 3D 오브젝트 레이아웃)
========================================================= */

#service {
    position: relative;
    width: 100vw !important;
    max-width: 100% !important;
    margin-left: calc(-50vw + 50%) !important;
    margin-right: calc(-50vw + 50%) !important;
    overflow: hidden;
}

.service-object {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    pointer-events: none;
    z-index: 1;
    transform: scale(1.3);
    transform-origin: center center;
    opacity: 0.55;
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 85%, rgba(0,0,0,0) 100%);
    mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 85%, rgba(0,0,0,0) 100%);
}

#service-object,
#service-lines-3d {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
}

#service-lines-3d canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

#service .container {
    position: relative;
    z-index: 2;
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 64px;
    padding-right: 64px;
}

.section-title{

    font-size:14px;

    letter-spacing:.18em;

    text-transform:uppercase;

    color:#999;

    margin-bottom:80px;

    font-weight:600;
}

.service-list{

    display:flex;

    flex-direction:column;

    gap:70px;

    max-width: 100%;
}

.service-item{

    display:grid;

    grid-template-columns:80px 1fr;

    padding-bottom:60px;

    border-bottom:1px solid #ececec;

    transition:.35s;
}

.service-item:hover{

    transform:translateX(8px);
}

.number{

    font-size:13px;

    font-weight:600;

    color:#999;

    padding-top:10px;
}

.service-item h3{

    font-size:42px;

    font-weight:700;

    letter-spacing:-.04em;

    margin-bottom:18px;
}

.service-item p{

    font-size:18px;

    line-height:1.8;

    color:#666;
}

#service::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 250px;
    background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 100%);
    pointer-events: none;
    z-index: 3;
}

/* =========================================================
   PORTFOLIO
========================================================= */

.portfolio-grid{

    display:grid;

    grid-template-columns:repeat(2,1fr);

    gap:32px;
}

.project{

    padding:56px;

    border:1px solid #ececec;

    border-radius:28px;

    background:#fff;

    transition:.35s;

    display:flex;

    flex-direction:column;

    min-height:340px;

    overflow:hidden;
}

.project:hover{

    transform:translateY(-8px);

    border-color:#111;
}

.project-category{

    font-size:13px;

    letter-spacing:.15em;

    color:#999;

    margin-bottom:28px;

    font-weight:600;
}

.project h2{

    font-size:34px;

    line-height:1.2;

    letter-spacing:-.04em;

    margin-bottom:18px;
}

.project p{

    font-size:18px;

    line-height:1.8;

    color:#666;

    margin-bottom:auto;
}

.arrow{

    margin-top:42px;

    font-size:15px;

    font-weight:600;
}


/* =========================================================
   ABOUT
========================================================= */

.about-wrap{

    display:grid;

    grid-template-columns:180px 1fr;

    gap:80px;
}

.about-content h2{

    font-size:56px;

    line-height:1.15;

    letter-spacing:-.05em;

    margin-bottom:42px;

    font-weight:800;
}

.about-content p{

    font-size:20px;

    line-height:2;

    color:#666;

    max-width:760px;

    margin-bottom:30px;
}


/* =========================================================
   CONTACT
========================================================= */

.contact-wrap{

    padding:120px 0;

    border-top:1px solid #ececec;
}

.contact-wrap h2{

    font-size:72px;

    line-height:1.05;

    letter-spacing:-.06em;

    margin:26px 0;
}

.contact-wrap p{

    font-size:20px;

    color:#666;

    margin-bottom:60px;
}

.contact-links{

    display:flex;

    gap:36px;

    flex-wrap:wrap;
}

.contact-links a{

    font-size:22px;

    font-weight:600;

    transition:.25s;
}

.contact-links a:hover{

    opacity:.45;
}


/* =========================================================
   CONTACT INFO
========================================================= */

.contact-info{

    display:flex;

    gap:100px;

    margin-top:56px;
}

.contact-info span{

    display:block;

    font-size:13px;

    color:#999;

    letter-spacing:.15em;

    text-transform:uppercase;

    margin-bottom:12px;
}

.contact-info a{

    font-size:20px;

    font-weight:500;

    color:#111;

    text-decoration:none;
}

.contact-info a:hover{

    opacity:.6;
}

.contact-info a span{

    margin-left:8px;
}


/* =========================================================
   FOOTER
========================================================= */

footer{

    padding:40px 64px;

    border-top:1px solid #ececec;
}

.footer-inner{

    max-width:1280px;

    width:100%;

    margin:auto;

    display:flex;

    justify-content:space-between;

    align-items:center;

    font-size:14px;

    color:#888;
}


/* =========================================================
   MOBILE MENU
========================================================= */

.menu-toggle{

    display:none;

    width:42px;

    height:42px;

    border:none;

    background:transparent;

    cursor:pointer;

    padding:0;
}

.menu-toggle span{

    display:block;

    width:24px;

    height:2px;

    background:#111;

    margin:5px auto;

    transition:.3s;
}


/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width:980px){

    .hero-light{

        width:120vw;

        height:72vh;

        right:-48vw;

        top:10vh;

        opacity:.58;

        filter:blur(48px);
    }


    /* ---------------- Header ---------------- */

    header{

        padding:26px;
    }

    nav{

        display:none;

        position:fixed;

        top:92px;

        left:0;

        width:100%;

        background:rgba(248,248,248,.72);

        backdrop-filter:blur(20px) saturate(180%);

        -webkit-backdrop-filter:blur(20px) saturate(180%);

        box-shadow:0 10px 30px rgba(0,0,0,.06);

        padding:24px 26px;

        flex-direction:column;

        gap:20px;

        border-top:1px solid rgba(0,0,0,.05);

        z-index:998;
    }

    nav.open{

        display:flex;
    }

    .menu-toggle{

        display:block;
    }


    /* ---------------- Hero ---------------- */

    .hero{

        padding:0 26px;

        min-height:720px;
    }

    .hero h1{

        left:26px;

        top:28%;

        font-size:clamp(52px,13vw,72px);

        line-height:.95;

        letter-spacing:-0.04em;
    }

    .hero-message-ux{

        left:26px;

        top:58%;
    }

    .hero-message-ui{

        left:48%;

        top:68%;
    }

    .hero-message h2{

        font-size:20px;
    }

    .hero-message p{

        font-size:14px;
    }

    .hero-message-ui p{

        white-space:normal;

        max-width:260px;
    }

    .hero-action{

        flex-direction:column;

        align-items:flex-start;

        gap:18px;

        margin-top:36px;
    }

    .scroll{

        left:26px;
    }


    /* ---------------- Graphic ---------------- */

    .hero-3d{

        inset:0;

        width:100%;

        height:100%;

        right:auto;

        top:auto;

        transform:none;
    }


    /* ---------------- Common ---------------- */

    section{

        padding:120px 26px;
    }


    /* ---------------- Service (모바일 풀폭 확장 및 캔버스 정렬 수정) ---------------- */
    #service {
        width: 100vw !important;
        max-width: 100% !important;
        margin-left: calc(-50vw + 50%) !important;
        margin-right: calc(-50vw + 50%) !important;
    }

    .service-object{
        position: absolute !important;
        top: 0 !important;
        left: 0 !important;
        right: auto !important;
        width: 100% !important;
        height: 100% !important;
        transform: none !important;
    }

    #service .container {
        max-width: 100% !important;
        width: 100% !important;
        padding-left: 26px !important;
        padding-right: 26px !important;
    }

    .service-list {
        max-width: 100% !important;
        width: 100% !important;
    }

    .service-item{

        grid-template-columns:1fr;

        gap:16px;
    }

    .service-item h3{

        font-size:30px;
    }

    .service-item p{

        font-size:16px;
    }


    /* ---------------- Portfolio ---------------- */

    .portfolio-grid{

        grid-template-columns:1fr;
    }

    .project{

        padding:36px;

        min-height:auto;
    }

    .project h2{

        font-size:28px;
    }

    .project p{

        font-size:16px;
    }


    /* ---------------- About ---------------- */

    .about-wrap{

        grid-template-columns:1fr;

        gap:40px;
    }

    .about-content h2{

        font-size:38px;
    }

    .about-content p{

        font-size:17px;
    }


    /* ---------------- Contact ---------------- */

    .contact-wrap h2{

        font-size:42px;
    }

    .contact-wrap p{

        font-size:17px;
    }

    .contact-links{

        flex-direction:column;

        gap:18px;
    }

    .contact-links a{

        font-size:18px;
    }

    .contact-info{

        flex-direction:column;

        gap:32px;
    }


    /* ---------------- Footer ---------------- */

    footer{

        padding:30px 26px;
    }

    .footer-inner{

        flex-direction:column;

        align-items:flex-start;

        gap:12px;
    }
}


/* =========================================================
   REDUCED MOTION
========================================================= */

@media (prefers-reduced-motion: reduce){

    .hero-light,
    .hero-light::after,
    .hero-3d{

        animation:none;
    }
}


/* =========================================================
   MOBILE HERO
========================================================= */

@media (max-width:767px){

    /* -------------------------
       HERO
    ------------------------- */

    .hero{
        height:100svh;
        min-height:680px;
        padding:0;
        overflow:hidden;
    }

    .hero-inner{
        width:100%;
        height:100%;
    }


    /* -------------------------
       HERO TITLE
    ------------------------- */

    .hero h1{
        left:26px;
        top:23%;

        width:calc(100% - 52px);

        font-size:clamp(48px,13vw,64px);
        line-height:.94;
        letter-spacing:-0.045em;

        z-index:4;
    }

    .hero h1 .title-line-1{
        display:block;

        position:relative;

        left:0;
        margin:0;

        width:100%;

        text-align:left;
    }

    .hero h1 .title-line-2{
        display:block;

        position:relative;

        left:36%;
        top:16px;

        margin-left:0;

        width:calc(100% - 36%);

        text-align:left;
    }


    /* -------------------------
       3D GRAPHIC
    ------------------------- */

    .hero-3d{
        position:absolute;

        inset:0;

        width:100%;
        height:100%;

        transform:scale(.40);
        transform-origin:center center;

        z-index:2;

        overflow:visible;
    }

    .hero-3d canvas{
        width:100% !important;
        height:100% !important;

        opacity:.72;
    }


    /* -------------------------
       BETTER UX
    ------------------------- */

    .hero-message-ux{
        left:26px;
        top:53%;

        width:calc(100% - 52px);
    }


    /* -------------------------
       BETTER UI
    ------------------------- */

    .hero-message-ui{
        left:50%;
        top:65%;

        width:calc(50% - 26px);
    }

    .hero-message h2{
        font-size:20px;
        margin-bottom:12px;
    }

    .hero-message p{
        font-size:14px;
        line-height:1.65;
    }

    .hero-message-ui p{
        white-space:normal;
        max-width:none;
    }


    /* -------------------------
       HERO ACTION
    ------------------------- */

    .hero-message-ux .hero-action{
        margin-top:90px;

        display:flex;

        flex-direction:column;

        align-items:flex-start;

        gap:18px;
    }

    .hero-message-ux .hero-action .btn-primary,
    .hero-message-ux .hero-action .portfolio{
        position:static !important;

        top:auto !important;

        transform:none !important;

        font-size:15px;
    }


    /* -------------------------
       HERO LIGHT
    ------------------------- */

    .hero-light{
        width:120vw;

        height:70vh;

        right:-45vw;
        top:15vh;

        opacity:.45;

        filter:blur(45px);
    }

    /* -------------------------
       MOBILE SERVICE SECTION PADDING FIX
    ------------------------- */
    #service .container {
        padding-left: 26px !important;
        padding-right: 26px !important;
    }
}