@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root{
  --container:1440px;
  --bg:#09090a;
  --surface:#101012;
  --surface-2:#141416;
  --surface-3:#19191c;
  --text:#f4f4f5;
  --text-2:#c2c2c7;
  --muted:#8e8e95;
  --line:#252529;
  --line-strong:#333338;
  --purple:#8B5CF6;
  --purple-strong:#9D73FF;

  --fs-display:clamp(36px,3.8vw,50px);
  --fs-h1:clamp(34px,3.5vw,46px);
  --fs-h2:clamp(26px,2.25vw,34px);
  --fs-h3:clamp(22px,1.8vw,28px);
  --fs-body-lg:18px;
  --fs-body:17px;
  --fs-body-sm:16px;
  --fs-label:14px;
  --fs-meta:12px;

  --section-xl:112px;
  --section-lg:88px;
  --section-md:64px;
  --header-height:104px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Pretendard',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:var(--fs-body);
  font-weight:400;
  line-height:1.7;
  letter-spacing:-.022em;
  word-break:keep-all;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}

.shell{
  width:min(calc(100% - 48px),var(--container));
  margin-inline:auto;
}

.eyebrow{
  margin:0;
  color:var(--muted);
  font-size:var(--fs-label);
  font-weight:600;
  line-height:1.4;
  letter-spacing:.11em;
  text-transform:uppercase;
}
.display{
  max-width:760px;
  margin:24px 0 0;
  font-size:var(--fs-display);
  font-weight:470;
  line-height:1.12;
  letter-spacing:-.047em;
}
.page-title{
  max-width:760px;
  margin:0;
  font-size:var(--fs-h1);
  font-weight:470;
  line-height:1.16;
  letter-spacing:-.045em;
}
.section-title{
  max-width:820px;
  margin:0;
  font-size:var(--fs-h2);
  font-weight:510;
  line-height:1.3;
  letter-spacing:-.038em;
}
.lead{
  margin:0;
  color:var(--text-2);
  font-size:var(--fs-body-lg);
  font-weight:400;
  line-height:1.75;
  letter-spacing:-.022em;
}
.muted{color:var(--muted)}

/* Header */
.dev-header{
  position:sticky;
  top:0;
  z-index:100;
  border-bottom:1px solid rgba(255,255,255,.08);
  background:rgba(9,9,10,.92);
  backdrop-filter:blur(18px);
}
.dev-header-inner{
  height:var(--header-height);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.dev-brand,.footer-brand{
  display:inline-flex;
  align-items:center;
  width:132px;
  flex:0 0 auto;
}
.dev-brand img,.footer-brand img{
  width:100%;
  filter:none;
}
.dev-nav{
  display:flex;
  align-items:center;
  gap:34px;
  margin-left:auto;
}
.dev-nav a{
  position:relative;
  color:#dddddf;
  font-size:14px;
  font-weight:500;
  line-height:1.4;
  letter-spacing:.055em;
}
.dev-nav a:after{
  content:'';
  position:absolute;
  left:0;
  right:0;
  bottom:-10px;
  height:1px;
  background:var(--purple);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.dev-nav a:hover,.dev-nav a.is-active{color:#fff}
.dev-nav a:hover:after,.dev-nav a.is-active:after{transform:scaleX(1)}
.dev-contact{
  min-height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 18px;
  border:1px solid var(--line-strong);
  background:transparent;
  color:#fff;
  font-size:13px;
  font-weight:510;
  letter-spacing:.06em;
  transition:.2s ease;
}
.dev-contact:hover{border-color:var(--purple);background:var(--purple);color:#fff}
.dev-menu{display:none;width:42px;height:42px;padding:0;border:0;background:transparent}
.dev-menu span{display:block;width:22px;height:1px;margin:6px auto;background:#fff}
.dev-mobile-nav{display:none;border-top:1px solid var(--line);background:#0c0c0d;padding:12px 24px 28px}
.dev-mobile-nav a{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;letter-spacing:-.01em}
.dev-mobile-nav.is-open{display:block}

/* Hero */
.hero{
  min-height:calc(100svh - var(--header-height));
  display:flex;
  align-items:center;
  padding:150px 0 118px;
  border-bottom:1px solid var(--line);
  background:var(--bg);
}
.hero-grid{
  width:100%;
  display:grid;
  grid-template-columns:minmax(0,690px) minmax(360px,1fr);
  gap:clamp(64px,8vw,132px);
  align-items:center;
}
.hero-copy{max-width:690px}
.hero-copy .display span{color:var(--purple-strong)}
.hero-description{max-width:650px;margin:28px 0 0}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}
.btn{
  min-height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 20px;
  border:1px solid var(--line-strong);
  background:#171719;
  color:#fff;
  font-size:13px;
  font-weight:510;
  letter-spacing:.06em;
  transition:.2s ease;
}
.btn:hover{border-color:#fff}
.btn.secondary{background:transparent;color:#fff}
.btn.purple{border-color:var(--purple);background:var(--purple);color:#fff}
.btn.purple:hover{border-color:var(--purple-strong);background:var(--purple-strong)}

.system-visual{
  position:relative;
  min-height:440px;
  overflow:hidden;
  border:1px solid var(--line);
  background:#0d0d0f;
}
.system-visual:before{
  content:'';
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(to bottom,#000,transparent 92%);
}
.system-orbit{position:absolute;left:50%;top:50%;width:286px;height:286px;border:1px solid #2a2a31;border-radius:50%;transform:translate(-50%,-50%)}
.system-orbit:before,.system-orbit:after{content:'';position:absolute;border:1px solid #232329;border-radius:50%}
.system-orbit:before{inset:36px}.system-orbit:after{inset:82px}
.system-symbol{position:absolute;left:50%;top:50%;width:92px;height:92px;transform:translate(-50%,-50%);filter:drop-shadow(0 18px 36px rgba(139,92,246,.22))}
.system-node{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--purple)}
.system-node.n1{left:17%;top:22%}.system-node.n2{right:18%;top:34%}.system-node.n3{left:25%;bottom:18%}.system-node.n4{right:24%;bottom:20%}
.system-label{position:absolute;left:24px;right:24px;bottom:22px;display:flex;justify-content:space-between;gap:20px;color:#72727a;font-size:var(--fs-meta);font-weight:500;line-height:1.4;letter-spacing:.06em}

.signal-bar{border-bottom:1px solid var(--line);background:#0b0b0c}
.signal-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.signal-item{padding:24px 24px;border-right:1px solid var(--line)}
.signal-item:first-child{padding-left:0}.signal-item:last-child{border-right:0}
.signal-item strong{display:block;color:#eeeeef;font-size:14px;font-weight:520;letter-spacing:.04em}
.signal-item span{display:block;margin-top:6px;color:var(--muted);font-size:14px;line-height:1.5}

/* Sections */
.section{padding:var(--section-xl) 0;border-bottom:1px solid var(--line)}
.section.soft{background:var(--surface)}
.section.dark{background:#0d0d0f;color:#fff}
.section-head{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:clamp(48px,7vw,120px);
  align-items:start;
  margin-bottom:56px;
}
.section-head .section-copy{max-width:900px}
.section-head .section-copy p{max-width:760px;margin:26px 0 0;color:var(--text-2);font-size:var(--fs-body);line-height:1.7}

/* Core services */
.primary-services{border-top:1px solid var(--line)}
.primary-service{
  display:grid;
  grid-template-columns:100px minmax(280px,.8fr) minmax(340px,1fr);
  gap:clamp(28px,4vw,64px);
  align-items:start;
  padding:42px 0;
  border-bottom:1px solid var(--line);
}
.primary-service .num{color:var(--purple);font-size:var(--fs-label);font-weight:600;letter-spacing:.11em}
.primary-service h3{margin:0;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.primary-service p{margin:0;color:var(--text-2);font-size:var(--fs-body-sm);line-height:1.7}
.service-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:22px}
.service-tags span{padding:7px 10px;border:1px solid var(--line);color:#a8a8af;font-size:12px;font-weight:500;letter-spacing:.05em}

/* Capability cards */
.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.capability{min-height:310px;display:flex;flex-direction:column;padding:28px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:transparent}
.capability span{color:var(--purple);font-size:var(--fs-label);font-weight:600;letter-spacing:.11em}
.capability h3{margin:48px 0 16px;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.capability p{margin:0;color:var(--text-2);font-size:var(--fs-body-sm);line-height:1.7}
.capability em{margin-top:auto;padding-top:28px;color:#73737b;font-size:12px;font-style:normal;font-weight:500;letter-spacing:.06em}

/* Selected projects on home */
.work-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 22px;border-top:0}
.work-row{
  min-height:230px;
  display:grid;
  grid-template-columns:44px minmax(0,1fr) 34px;
  grid-template-rows:auto 1fr auto;
  gap:16px 18px;
  align-items:start;
  padding:28px 30px;
  border:1px solid var(--line);
  background:transparent;
  transition:.2s ease;
}
.work-row:hover{border-color:#3d3d45;background:#101012}
.work-row .index{grid-column:1;color:var(--purple);font-size:14px;font-weight:600;letter-spacing:.08em}
.work-row>div{grid-column:2 / 4}
.work-row h3{margin:0 0 8px;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.work-row p{margin:0;color:var(--text-2);font-size:var(--fs-body-sm);line-height:1.6}
.work-row .meta{grid-column:2;color:#7f7f87;font-size:12px;font-weight:500;line-height:1.6;letter-spacing:.03em;align-self:end}
.work-row .arrow{grid-column:3;text-align:right;align-self:end;color:#b5b5bb;font-size:18px}

/* Process */
.process-grid{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.process-step{min-height:270px;padding:28px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.process-step span{color:var(--purple);font-size:14px;font-weight:600;letter-spacing:.11em}
.process-step h3{margin:48px 0 16px;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.process-step p{margin:0;color:#a8a8ae;font-size:var(--fs-body-sm);line-height:1.7}
.tech-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:36px}
.tech-line span{padding:8px 11px;border:1px solid var(--line);color:#9d9da4;font-size:12px;font-weight:500;letter-spacing:.05em}

/* CTA */
.cta-section{padding:var(--section-lg) 0;background:var(--purple);color:#fff}
.cta-grid{display:grid;grid-template-columns:1fr auto;gap:48px;align-items:end}
.cta-grid h2{max-width:760px;margin:24px 0 0;font-size:var(--fs-h1);font-weight:470;line-height:1.16;letter-spacing:-.045em}
.cta-grid p{max-width:650px;margin:26px 0 0;color:#eee9ff;font-size:var(--fs-body);line-height:1.7}
.cta-section .eyebrow{color:#ded4ff}
.cta-section .btn{border-color:#fff;background:#fff;color:#5b2fc3}
.cta-section .btn:hover{background:transparent;color:#fff}

/* Footer */
.dev-footer{padding:72px 0 34px;border-top:1px solid var(--line);background:#09090a}
.footer-top{display:grid;grid-template-columns:1.4fr repeat(2,.5fr);gap:60px}
.footer-intro{max-width:480px;margin:24px 0 0;color:var(--muted);font-size:16px;line-height:1.7}
.footer-col h4{margin:0 0 18px;color:#77777e;font-size:12px;font-weight:600;letter-spacing:.11em}
.footer-col a{display:block;margin:9px 0;color:#cfcfd3;font-size:14px;font-weight:500}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:64px;padding-top:24px;border-top:1px solid var(--line);color:#717178;font-size:12px;letter-spacing:.05em}

/* Inner page hero */
.page-hero{padding:140px 0 88px;border-bottom:1px solid var(--line);background:var(--bg)}
.page-hero-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(48px,7vw,120px);align-items:start}
.page-hero .lead{max-width:760px;margin-top:28px}

/* About */
.about-principles{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.about-principle{min-height:310px;padding:28px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.about-principle span{color:var(--purple);font-size:14px;font-weight:600;letter-spacing:.11em}
.about-principle h3{margin:48px 0 16px;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.about-principle p{margin:0;color:var(--text-2);font-size:var(--fs-body-sm);line-height:1.7}
.definition-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.definition-card{min-height:270px;padding:28px 30px;border:1px solid var(--line);background:transparent}
.definition-card span{color:var(--purple);font-size:14px;font-weight:600;letter-spacing:.11em}
.definition-card h3{margin:44px 0 16px;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.definition-card p{margin:0;color:var(--text-2);font-size:var(--fs-body-sm);line-height:1.7}

/* Services */
.service-detail{display:grid;grid-template-columns:100px minmax(260px,.72fr) minmax(360px,1fr);gap:clamp(28px,4vw,64px);padding:54px 0;border-top:1px solid var(--line)}
.service-detail:last-child{border-bottom:1px solid var(--line)}
.service-detail .service-no{color:var(--purple);font-size:14px;font-weight:600;letter-spacing:.11em}
.service-detail h2{margin:0;font-size:var(--fs-h2);font-weight:510;line-height:1.3;letter-spacing:-.038em}
.service-detail .desc{margin:0 0 30px;color:var(--text-2);font-size:var(--fs-body);line-height:1.7}
.deliverables{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}
.deliverables span{padding:12px 0;border-bottom:1px solid var(--line);color:#a6a6ad;font-size:14px;line-height:1.5}

/* Works */
.works-hero-note{max-width:690px;color:var(--text-2);font-size:var(--fs-body-lg);line-height:1.75}
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 22px}
.case-card{min-height:410px;display:flex;flex-direction:column;padding:28px 30px;border:1px solid var(--line);background:transparent;transition:.2s ease}
.case-card:hover{border-color:#42424a;background:#101012}
.case-card .case-top{display:flex;justify-content:space-between;color:#85858d;font-size:12px;font-weight:500;letter-spacing:.06em}
.case-card h2{margin:72px 0 18px;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.case-card p{max-width:560px;margin:0;color:var(--text-2);font-size:var(--fs-body-sm);line-height:1.7}
.case-card .case-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:34px}
.case-card .case-tags span{padding:6px 9px;border:1px solid var(--line);background:transparent;color:#85858d;font-size:12px;font-weight:500}

/* Request */
.request-page{padding:140px 0 124px;background:var(--bg)}
.request-wrap{max-width:1040px;margin:0 auto}
.request-intro{max-width:760px;margin-bottom:88px}
.request-intro h1{max-width:760px;margin:24px 0 0;font-size:var(--fs-h1);font-weight:470;line-height:1.16;letter-spacing:-.045em}
.request-intro p{max-width:650px;margin:28px 0 0;color:var(--text-2);font-size:var(--fs-body);line-height:1.7}
.request-section{padding:52px 0;border-top:1px solid var(--line)}
.request-section-head{display:grid;grid-template-columns:72px 1fr;gap:18px;margin-bottom:36px}
.request-section-head span{color:var(--purple);font-size:14px;font-weight:600;letter-spacing:.11em}
.request-section-head h2{margin:0;font-size:var(--fs-h3);font-weight:540;line-height:1.35;letter-spacing:-.03em}
.request-section-head p{grid-column:2;margin:5px 0 0;color:var(--muted);font-size:16px;line-height:1.7}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px 28px}
.field{display:flex;flex-direction:column;gap:8px}.field.full{grid-column:1/-1}
.field label{color:#c8c8cd;font-size:14px;font-weight:500}
.field input,.field select,.field textarea{width:100%;padding:14px 0;border:0;border-bottom:1px solid #34343a;border-radius:0;outline:none;background:transparent;color:#fff;font-size:16px;font-weight:400;line-height:1.6}
.field textarea{min-height:160px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#5f5f66}
.field select{color-scheme:dark}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--purple)}
.choice-grid{display:flex;flex-wrap:wrap;gap:8px}
.choice{position:relative}.choice input{position:absolute;opacity:0;pointer-events:none}
.choice span{min-height:44px;display:inline-flex;align-items:center;padding:0 15px;border:1px solid var(--line);background:#0c0c0e;color:#b9b9bf;font-size:14px;font-weight:500;transition:.2s ease}
.choice input:checked+span{border-color:var(--purple);background:var(--purple);color:#fff}
.request-consent{display:flex;gap:10px;align-items:flex-start;margin:30px 0;color:#8f8f96;font-size:14px;line-height:1.7}
.request-consent input{margin-top:5px;accent-color:var(--purple)}
.request-submit{display:flex;justify-content:space-between;gap:28px;align-items:center;padding-top:36px;border-top:1px solid var(--line)}
.request-submit small{max-width:560px;color:#76767d;font-size:13px;line-height:1.65}
.request-submit button{min-width:190px}
.form-notice{display:none;margin-top:24px;padding:18px 20px;border:1px solid var(--line);font-size:15px;line-height:1.65}.form-notice.is-visible{display:block}.form-notice.success{border-color:#6043a4;background:#120f19;color:#d8ccfa}.form-notice.error{border-color:#613838;background:#180f10;color:#e9b2b2}

@media(max-width:1100px){
  .hero-grid{grid-template-columns:minmax(0,620px) minmax(300px,1fr);gap:56px}
  .capability-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .process-step:last-child{grid-column:1/-1}
  .primary-service,.service-detail{grid-template-columns:80px minmax(0,1fr)}
  .primary-service>p,.service-detail>.service-body{grid-column:2}
}

@media(max-width:900px){
  .hero{min-height:auto;padding:112px 0 96px}
  .hero-grid,.section-head,.page-hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-copy{max-width:690px}
  .system-visual{min-height:360px}
  .section{padding:96px 0}
  .page-hero{padding:112px 0 80px}
  .section-head{margin-bottom:48px}
  .footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}
  .about-principles{grid-template-columns:1fr}
}

@media(max-width:760px){
  :root{--header-height:76px}
  body{font-size:16px}
  .shell{width:calc(100% - 32px)}
  .display{font-size:clamp(32px,9.5vw,40px)}
  .page-title,.request-intro h1{font-size:clamp(30px,9vw,38px)}
  .section-title,.service-detail h2{font-size:clamp(24px,7.5vw,30px)}
  .dev-header-inner{height:var(--header-height)}
  .dev-nav,.dev-contact{display:none}.dev-menu{display:block}.dev-brand{width:116px}
  .dev-mobile-nav{padding-inline:16px}
  .hero{padding:92px 0 80px}
  .hero-grid{gap:52px}
  .hero-description{margin-top:26px}
  .hero-actions{margin-top:36px}
  .system-visual{min-height:300px}
  .signal-grid{grid-template-columns:1fr 1fr}
  .signal-item{padding:20px 16px;border-bottom:1px solid var(--line)}
  .signal-item:nth-child(2){border-right:0}.signal-item:nth-child(3),.signal-item:nth-child(4){border-bottom:0}
  .signal-item:first-child{padding-left:16px}
  .section{padding:80px 0}
  .page-hero{padding:88px 0 68px}
  .section-head{gap:28px;margin-bottom:44px}
  .primary-service,.service-detail{grid-template-columns:44px 1fr;gap:22px;padding:40px 0}
  .primary-service>p,.service-detail>.service-body{grid-column:2}
  .capability-grid,.process-grid,.definition-grid,.work-list,.case-grid{grid-template-columns:1fr}
  .process-step:last-child{grid-column:auto}
  .capability,.process-step,.about-principle,.definition-card,.work-row,.case-card{min-height:auto;padding:26px 24px}
  .work-row{grid-template-columns:34px 1fr 28px}
  .case-card h2{margin-top:54px}
  .deliverables{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:38px}.footer-top>div:first-child{grid-column:auto}
  .footer-bottom{flex-direction:column;margin-top:48px}
  .cta-section{padding:72px 0}.cta-grid{grid-template-columns:1fr;align-items:start}.cta-grid .btn{justify-self:start}
  .request-page{padding:88px 0 92px}.request-intro{margin-bottom:68px}.request-section{padding:44px 0}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.request-section-head{grid-template-columns:48px 1fr}.request-submit{align-items:stretch;flex-direction:column}.request-submit button{width:100%}
}