:root{
  --bg-0:#07090c;
  --bg-1:#0b0f14;
  --blue-deep:#0f2a4a;
  --blue:#1e5d99;
  --blue-light:#3a8fd9;
  --accent:#2f8dff;
  --accent-hover:#4d9fff;
  --text:#f2f5f8;
  --text-dim:#a9b4c0;
  --text-mute:#6f7a86;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --card:rgba(255,255,255,.03);
  --serif:'Noto Serif KR',Georgia,serif;
  --sans:'Noto Sans KR',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1200px;
  --gutter:clamp(16px,4vw,48px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  word-break:keep-all;
  font-family:var(--sans);
  background:var(--bg-0);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.serif{font-family:var(--serif);font-weight:400;letter-spacing:-.01em}
.mono{font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase}

/* ---------- background ---------- */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden}
.bg-grad{
  position:absolute;inset:0;
  background:
    radial-gradient(120% 70% at 50% 120%,var(--blue-light) 0%,var(--blue) 25%,var(--blue-deep) 50%,transparent 75%),
    linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 40%,#0d1b2e 75%,#154676 100%);
}
#rings{position:absolute;inset:0;width:100%;height:100%;opacity:.8}
.bg-noise{
  position:absolute;inset:0;opacity:.035;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .4s,border-color .4s,backdrop-filter .4s}
.nav.scrolled{background:rgba(7,9,12,.7);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:26px;height:26px;color:var(--text)}
.logo-orbit{transform-origin:16px 16px;animation:orbit 6s linear infinite}
@keyframes orbit{to{transform:rotate(360deg)}}
.logo-text{font-family:var(--mono);font-weight:500;font-size:15px;letter-spacing:.14em}
.logo-dash{color:var(--accent)}
.menu{display:flex;gap:34px;margin-left:auto}
.menu a,.nav-link{font-size:14px;color:var(--text-dim);position:relative;transition:color .25s}
.menu a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:1px;background:var(--text);transition:right .3s}
.menu a:hover{color:var(--text)}
.menu a:hover::after{right:0}
.nav-right{display:flex;align-items:center;gap:22px}
.nav-right .nav-link{padding-left:22px;border-left:1px solid var(--line-strong)}
.burger{display:none;width:40px;height:40px;background:none;border:0;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;align-items:center}
.burger span{display:block;width:22px;height:1.5px;background:var(--text);transition:transform .3s,opacity .3s}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3.75px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
.mobile-menu{display:none;flex-direction:column;gap:6px;padding:8px var(--gutter) 24px;background:rgba(7,9,12,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.mobile-menu a{padding:12px 0;font-size:17px;color:var(--text-dim);border-bottom:1px solid var(--line)}
.mobile-menu a.btn{margin-top:12px;justify-content:center;border:0}
.mobile-menu.open{display:flex}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;padding:10px 18px;border-radius:999px;transition:background .25s,transform .25s,box-shadow .25s;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 0 0 0 rgba(47,141,255,.4)}
.btn-primary:hover{background:var(--accent-hover);box-shadow:0 8px 28px -6px rgba(47,141,255,.6);transform:translateY(-1px)}
.btn-lg{padding:14px 26px;font-size:15px}
.arrow{display:inline-block;transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.btn:hover .arrow,.link-arrow:hover .arrow,.post:hover .arrow{transform:translateX(5px)}

/* ---------- hero ---------- */
.hero{padding:180px 0 90px;min-height:100vh;display:flex;align-items:center}
.eyebrow{font-size:13px;color:var(--text-dim);margin-bottom:26px}
.caret{display:inline-block;width:9px;height:14px;margin-left:3px;background:var(--text-dim);vertical-align:-2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.hero-row{display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
.headline{font-size:clamp(38px,6vw,80px);line-height:1.14;max-width:13em}
.headline .line{display:block;overflow:hidden}
.headline .line > span{display:inline-block;transform:translateY(110%);opacity:0;transition:transform 1s cubic-bezier(.2,.8,.2,1),opacity .8s}
.headline.in .line > span{transform:translateY(0);opacity:1}
.headline em{font-style:normal;color:#fff;position:relative}
.headline em::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 1s .9s cubic-bezier(.2,.8,.2,1)}
.headline.in em::after{transform:scaleX(1)}
.headline.done .line{overflow:visible}
.tag{font-size:15px;line-height:1.5;color:var(--text-dim);text-align:right;padding-bottom:14px;flex-shrink:0}
.features{display:grid;grid-template-columns:repeat(4,1fr);margin-top:110px;border-top:1px solid var(--line)}
.feature{padding:34px 28px 0 0;border-right:1px solid var(--line)}
.feature + .feature{padding-left:28px}
.feature:last-child{border-right:0}
.feature .ico{width:20px;height:20px;fill:var(--text-dim);margin-bottom:26px}
.feature h3{font-size:16px;font-weight:600;margin-bottom:10px;color:#fff}
.feature p{font-size:14px;color:var(--text-dim);line-height:1.7}
.feature-wide p{font-size:15px;padding-top:0}

/* ---------- stats ---------- */
.stats{padding:0 0 30px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:40px;padding-bottom:40px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{display:flex;flex-direction:column;gap:8px}
.stat .num{font-size:clamp(34px,4vw,52px);line-height:1;color:#fff}
.stat .lbl{font-size:11px;color:var(--text-mute)}

/* ---------- sections ---------- */
.section{padding:140px 0}
.section-head{margin-bottom:64px;max-width:720px}
.section-head .eyebrow{margin-bottom:18px}
.section-head h2{font-size:clamp(30px,4vw,50px);line-height:1.22}

/* cards */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.card{position:relative;background:var(--bg-1);padding:44px 40px 40px;overflow:hidden;isolation:isolate;transition:background .4s}
.card::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:0;transition:opacity .4s;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(47,141,255,.18),transparent 60%);
}
.card:hover::before{opacity:1}
.card::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(300px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.08),transparent 60%);opacity:0;transition:opacity .4s}
.card:hover::after{opacity:1}
.card-idx{font-size:12px;color:var(--accent);display:block;margin-bottom:38px}
.card h3{font-size:22px;font-weight:600;margin-bottom:14px;color:#fff}
.card p{font-size:15px;color:var(--text-dim);line-height:1.75;max-width:46ch}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.chips li{font-size:11px;padding:6px 10px;border:1px solid var(--line-strong);border-radius:6px;color:var(--text-dim);letter-spacing:.06em;text-transform:none}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;border-top:1px solid var(--line)}
.steps::before{content:"";position:absolute;left:0;top:-1px;height:1px;width:var(--progress,0%);background:linear-gradient(90deg,var(--accent),var(--blue-light));transition:width 1.6s cubic-bezier(.2,.8,.2,1)}
.step{padding:40px 28px 0 0;position:relative}
.step + .step{padding-left:28px;border-left:1px solid var(--line)}
.step::before{content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;background:var(--bg-0);border:1.5px solid var(--text-mute);transition:background .4s,border-color .4s,box-shadow .4s}
.step + .step::before{left:-5px}
.step.lit::before{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 6px rgba(47,141,255,.15)}
.step-no{font-size:12px;color:var(--text-mute);display:block;margin-bottom:22px}
.step h3{font-size:24px;font-weight:600;margin-bottom:12px;color:#fff}
.step p{font-size:15px;color:var(--text-dim);line-height:1.75}

/* about */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:start}
.about h2{font-size:clamp(30px,3.6vw,46px);line-height:1.25;margin-top:18px}
.about-copy{padding-top:56px;display:flex;flex-direction:column;gap:22px}
.about-copy p{font-size:17px;color:var(--text-dim);line-height:1.8}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:#fff;border-bottom:1px solid var(--line-strong);padding-bottom:4px;align-self:flex-start;margin-top:8px;transition:border-color .3s}
.link-arrow:hover{border-color:#fff}

/* insights */
.posts{border-top:1px solid var(--line)}
.post{display:grid;grid-template-columns:200px 1fr auto;align-items:center;gap:32px;padding:30px 0;border-bottom:1px solid var(--line);transition:padding-left .35s,background .35s}
.post:hover{padding-left:16px}
.post-meta{font-size:12px;color:var(--text-mute)}
.post h3{font-size:clamp(18px,2vw,24px);font-weight:500;color:#fff}
.post .arrow{font-size:22px;color:var(--text-dim)}

/* cta */
.cta{padding-bottom:160px}
.cta-inner{max-width:760px;margin:0 auto;text-align:center}
.cta h2{font-size:clamp(32px,4.4vw,56px);line-height:1.2;margin-top:18px}
.cta-sub{margin-top:22px;color:var(--text-dim);font-size:16px}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:48px;text-align:left}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line-strong);border-radius:12px;
  padding:16px 18px;color:#fff;font:inherit;font-size:15px;outline:none;transition:border-color .3s,background .3s,box-shadow .3s;resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-mute)}
.field input:focus,.field textarea:focus{border-color:var(--accent);background:rgba(47,141,255,.06);box-shadow:0 0 0 4px rgba(47,141,255,.12)}
.field-full{grid-column:1/-1}
.contact-form .btn{grid-column:1/-1;justify-self:center;margin-top:10px}
.cta-mail{margin-top:34px;font-size:12px;color:var(--text-mute);text-transform:none;letter-spacing:.04em}
.cta-mail a{color:var(--text-dim);border-bottom:1px solid var(--line-strong)}
.cta-mail a:hover{color:#fff}

/* footer */
.footer{border-top:1px solid var(--line);background:rgba(7,9,12,.35);backdrop-filter:blur(8px)}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-end;padding-top:44px;padding-bottom:44px;gap:24px;flex-wrap:wrap}
.footer-brand p{font-size:13px;color:var(--text-dim);margin-top:10px}
.footer-copy{font-size:13px;color:var(--text-mute)}
.footer-copy a{color:var(--text-dim)}
.footer-copy a:hover{color:#fff}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.cards .reveal:nth-child(2),.steps .reveal:nth-child(2),.posts .reveal:nth-child(2){transition-delay:.1s}
.cards .reveal:nth-child(3),.steps .reveal:nth-child(3),.posts .reveal:nth-child(3){transition-delay:.2s}
.cards .reveal:nth-child(4),.steps .reveal:nth-child(4){transition-delay:.3s}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .features{grid-template-columns:repeat(2,1fr);row-gap:10px}
  .feature{border-right:0;padding-right:24px}
  .feature + .feature{padding-left:0}
  .feature:nth-child(odd){border-right:1px solid var(--line)}
  .feature:nth-child(even){padding-left:24px}
  .feature-wide{grid-column:1/-1;border-right:0!important;padding-left:0!important;border-top:1px solid var(--line);margin-top:20px}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:34px}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:40px}
  .step:nth-child(3){padding-left:0;border-left:0}
  .step:nth-child(n+3)::before{display:none}
  .about-grid{grid-template-columns:1fr;gap:20px}
  .about-copy{padding-top:0}
}
@media (max-width:820px){
  .menu,.nav-right{display:none}
  .burger{display:flex}
  .nav-inner{height:64px}
  .hero{padding:130px 0 70px;min-height:auto}
  .hero-row{flex-direction:column;align-items:flex-start;gap:26px}
  .tag{text-align:left;padding-bottom:0}
  .features{margin-top:70px}
  .section{padding:96px 0}
  .cards{grid-template-columns:1fr;border-radius:14px}
  .card{padding:34px 26px 32px}
  .post{grid-template-columns:1fr auto;row-gap:8px}
  .post-meta{grid-column:1/-1}
  .post:hover{padding-left:0}
  .contact-form{grid-template-columns:1fr}
}
@media (max-width:520px){
  .features{grid-template-columns:1fr}
  .feature{border-right:0!important;padding:26px 0 0!important}
  .feature + .feature{border-top:1px solid var(--line);margin-top:22px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:26px 16px}
  .steps{grid-template-columns:1fr;row-gap:0}
  .step{padding:34px 0 0!important;border-left:0!important}
  .step + .step{border-top:1px solid var(--line);margin-top:30px}
  .step::before{display:none}
  .footer-inner{align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal,.headline .line > span{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- philosophy ---------- */
.philosophy{position:relative}
.phil-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:80px;align-items:start;margin-bottom:96px}
.phil-verse{position:sticky;top:120px}
.verse-num{font-size:clamp(96px,14vw,200px);line-height:.9;color:#fff;letter-spacing:-.04em;margin-top:8px;
  background:linear-gradient(180deg,#fff 30%,rgba(255,255,255,.35));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.verse-colon{color:var(--accent);-webkit-text-fill-color:var(--accent);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.verse-ref{font-size:12px;color:var(--text-mute);margin-top:22px}
.phil-copy h2{font-size:clamp(28px,3.4vw,42px);line-height:1.3;margin-bottom:34px;max-width:15em}
.phil-copy p{font-size:16px;color:var(--text-dim);line-height:1.85;max-width:56ch}
.phil-copy .lead{font-size:19px;color:var(--text);line-height:1.8;margin-bottom:22px;font-weight:300}
.values{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.value{padding:36px 28px 0 0;position:relative}
.value + .value{padding-left:28px;border-left:1px solid var(--line)}
.value::before{content:"";position:absolute;top:-1px;left:0;width:0;height:1px;background:var(--accent);transition:width .8s cubic-bezier(.2,.8,.2,1)}
.value + .value::before{left:-1px}
.value:hover::before{width:100%}
.value-no{font-size:11px;color:var(--accent);display:block;margin-bottom:24px}
.value h3{font-size:22px;font-weight:600;color:#fff;margin-bottom:12px}
.value p{font-size:14.5px;color:var(--text-dim);line-height:1.75}
.values .reveal:nth-child(2){transition-delay:.1s}
.values .reveal:nth-child(3){transition-delay:.2s}
.values .reveal:nth-child(4){transition-delay:.3s}
.footer-tagline{margin-top:14px!important;color:var(--text-dim)}
.footer-tagline .mono{display:block;font-size:10.5px;color:var(--text-mute);margin-top:4px}
@media (max-width:1024px){
  .phil-grid{grid-template-columns:1fr;gap:28px;margin-bottom:72px}
  .phil-verse{position:static}
  .values{grid-template-columns:repeat(2,1fr);row-gap:40px}
  .value:nth-child(3){padding-left:0;border-left:0}
}
@media (max-width:520px){
  .values{grid-template-columns:1fr;row-gap:0}
  .value{padding:30px 0 0!important;border-left:0!important}
  .value + .value{border-top:1px solid var(--line);margin-top:30px}
}

/* ---------- solution cards v2 ---------- */
.cards-3{grid-template-columns:repeat(3,1fr)}
.cards a.card{display:flex;flex-direction:column;color:inherit}
.cards a.card:hover h3{color:var(--accent-hover)}
.card h3{transition:color .3s}
.card-more{margin-top:auto;padding-top:26px;font-size:13px;color:var(--text-dim);display:inline-flex;gap:6px;align-items:center;transition:color .3s}
.card:hover .card-more{color:#fff}
.card:hover .card-more .arrow{transform:translateX(5px)}
.cards .reveal:nth-child(5){transition-delay:.1s}
.cards .reveal:nth-child(6){transition-delay:.2s}
@media (max-width:1024px){.cards-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.cards-3{grid-template-columns:1fr}}