:root{
  --navy:#0b1f33; --navy2:#12304d; --ink:#14222e; --muted:#5a6b7b; --line:#e3e9ef;
  --bg:#fff; --alt:#f5f8fb; --green:#4caf3a; --green-d:#388a2a; --teal:#1aa6b7;
  --r:16px; --shadow:0 10px 30px -12px rgba(11,31,51,.18);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:"Pretendard Variable",Pretendard,-apple-system,"Segoe UI","Malgun Gothic",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:17px;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;padding:0}
.wrap{width:min(1120px,100% - 40px);margin-inline:auto}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px 12px;z-index:99}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:6px}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,box-shadow .3s}
.nav.solid{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-weight:800;font-size:26px;letter-spacing:-.5px;color:#fff}
.logo .g{color:var(--green)}
.nav.solid .logo{color:var(--navy)}
#menu{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:500;color:#dbe6f0}
.nav.solid #menu{color:var(--ink)}
#menu a:not(.btn):hover{color:var(--green)}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer}
.burger span{display:block;height:2px;background:#fff;margin:7px 8px;transition:.3s}
.nav.solid .burger span{background:var(--navy)}

/* buttons */
.btn{display:inline-block;background:var(--green);color:#fff;font-weight:600;padding:14px 26px;border-radius:999px;transition:.2s;border:1px solid var(--green)}
.btn:hover{background:var(--green-d);border-color:var(--green-d);transform:translateY(-1px)}
.btn.sm{padding:8px 18px;font-size:14px;color:#fff!important}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.4)}
.btn.ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn.big{font-size:22px;padding:18px 34px}

/* hero */
.hero{background:radial-gradient(900px 500px at 85% 10%,rgba(26,166,183,.28),transparent 60%),radial-gradient(700px 500px at 0% 100%,rgba(76,175,58,.18),transparent 60%),linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;padding:150px 0 0;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(#000 40%,transparent)}
.hero-in{position:relative}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--green-d);margin-bottom:14px}
.hero .eyebrow,.eyebrow.light{color:#7fd36f}
h1{font-size:clamp(34px,6vw,64px);line-height:1.2;font-weight:800;letter-spacing:-.03em}
h1 em{font-style:normal;background:linear-gradient(90deg,#7fd36f,#4fd0dc);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{max-width:640px;margin:26px 0 36px;font-size:clamp(16px,2vw,19px);color:#c6d5e3}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.stats{position:relative;display:grid;grid-template-columns:repeat(4,1fr);margin-top:80px;border-top:1px solid rgba(255,255,255,.14)}
.stats div{padding:30px 20px 36px 0}
.stats b{display:block;font-size:clamp(32px,4.4vw,48px);font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stats span{font-size:14px;color:#a9bccd;line-height:1.5;display:block;margin-top:4px}

/* sections */
.sec{padding:110px 0}
.sec.alt{background:var(--alt)}
h2{font-size:clamp(28px,4vw,42px);line-height:1.3;font-weight:800;letter-spacing:-.02em;color:var(--navy)}
.sub{color:var(--muted);max-width:640px;margin-top:14px}
.two{display:grid;grid-template-columns:1fr 1.2fr;gap:64px}
.prose p{margin-bottom:18px;color:#34495a}
.checks{margin-top:26px;display:grid;gap:12px}
.checks li{position:relative;padding:14px 18px 14px 50px;background:var(--alt);border-radius:12px;font-weight:500}
.checks li::before{content:"";position:absolute;left:18px;top:50%;width:18px;height:18px;margin-top:-9px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3.2 3L15 6.8' fill='none' stroke='white' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100%}

.cards{display:grid;gap:20px;margin-top:44px}
.cards.three{grid-template-columns:repeat(3,1fr)}
.cards.four{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 28px;transition:.25s}
.card h3{font-size:21px;color:var(--navy);margin:10px 0 8px}
.card p{color:var(--muted);font-size:15.5px}
.sec.alt .card{border-color:transparent;box-shadow:var(--shadow)}
.prod{display:flex;flex-direction:column}
.prod:hover{transform:translateY(-6px);box-shadow:0 22px 44px -18px rgba(11,31,51,.3)}
.prod .tag{font-size:12.5px;font-weight:700;color:var(--green-d);letter-spacing:.04em}
.prod h3{font-size:30px;letter-spacing:-.02em}
.prod .more{margin-top:auto;padding-top:22px;font-weight:600;color:var(--teal);font-size:15px}
.cards.two-ai{grid-template-columns:1fr 1fr}
.grp{font-size:15px;font-weight:700;color:var(--muted);margin:44px 0 -22px;letter-spacing:.02em}
.feat .prod h3 small{font-size:14px;font-weight:600;color:var(--muted);margin-left:6px}
.feat .prod .q{color:var(--navy);font-weight:600;margin-bottom:10px}
.inl{color:var(--teal);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.ai-card{padding:36px 34px;border-top:4px solid var(--green)}
.ai-card .tag{font-size:12.5px;font-weight:700;color:var(--green-d);letter-spacing:.06em;text-transform:uppercase}
.ai-card h3{font-size:26px;letter-spacing:-.02em}
.dots{margin-top:18px;display:grid;gap:10px}
.dots li{position:relative;padding-left:20px;font-size:15.5px;color:#34495a}
.dots li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:50%;background:var(--teal)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:36px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.steps li{display:flex;gap:14px;align-items:center;padding:22px 24px;background:var(--alt);font-weight:700;color:var(--navy);line-height:1.4}
.steps li+li{border-left:1px solid var(--line)}
.steps b{color:var(--green-d);font-size:20px;font-variant-numeric:tabular-nums}
.steps small{font-weight:500;color:var(--muted);font-size:13px}
.note{margin-top:22px;color:var(--muted);font-size:15px}
#services .card.hl{background:linear-gradient(160deg,var(--navy),var(--navy2));border-color:transparent}
#services .card.hl h3{color:#fff}#services .card.hl p{color:#b8c9d9}
#services .card.hl .ic{background:var(--green);color:#fff}
.prod.off{background:var(--alt);box-shadow:none;border:1px dashed #cfd9e3}
.prod.off:hover{transform:none;box-shadow:none}
.prod.off .tag{color:var(--muted)}
.ic{font-style:normal;display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--navy);color:#7fd36f;font-weight:800;font-size:14px}
#services .card:hover{border-color:var(--green);transform:translateY(-4px)}

/* portfolio */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:34px 0 36px}
.filters button{font:inherit;font-size:14.5px;font-weight:600;padding:8px 18px;border-radius:999px;border:1px solid #cfd9e3;background:#fff;color:var(--ink);cursor:pointer;transition:.2s}
.filters button:hover{border-color:var(--navy)}
.filters button[aria-selected=true]{background:var(--navy);color:#fff;border-color:var(--navy)}
.timeline{position:relative;display:grid;gap:14px;padding-left:28px}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--green),#cfd9e3)}
.item{position:relative;display:grid;grid-template-columns:110px 1fr auto;gap:18px;align-items:center;background:#fff;border-radius:14px;padding:20px 24px;box-shadow:var(--shadow)}
.item::before{content:"";position:absolute;left:-28px;top:50%;width:14px;height:14px;margin-top:-7px;border-radius:50%;background:#fff;border:3px solid var(--green)}
.item time{font-weight:800;color:var(--navy);font-variant-numeric:tabular-nums}
.item time small{display:block;font-weight:500;color:var(--muted);font-size:12.5px}
.item h3{font-size:17px;color:var(--navy);line-height:1.45}
.item p{font-size:14px;color:var(--muted);margin-top:2px}
.pill{font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;background:#eaf6e7;color:var(--green-d);white-space:nowrap}
.pill.t{background:#e4f4f7;color:#0f7f8c}.pill.b{background:#e8edf5;color:#2d4a73}
.item a.lnk{color:var(--teal);font-weight:600}
.item[hidden]{display:none}

.clients{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-top:40px}
.clients li{border:1px solid var(--line);border-radius:12px;padding:22px 16px;text-align:center;font-weight:700;color:#3b5166;background:#fff;transition:.2s}
.clients li:hover{border-color:var(--green);color:var(--navy)}

.contact{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff}
.contact h2{color:#fff}
.sub.light{color:#b8c9d9}
.contact-in{display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.mail{display:grid;gap:10px;justify-items:start}
.mail span{color:#9fb3c6;font-size:14px}

.foot{background:#08172a;color:#8ea2b5;padding:36px 0;font-size:14px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.foot .logo{font-size:22px}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}

@media(max-width:900px){
  .two{grid-template-columns:1fr;gap:24px}
  .cards.three,.cards.four{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .cards.two-ai{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .steps li:nth-child(3){border-left:0}.steps li:nth-child(n+3){border-top:1px solid var(--line)}
  .sec{padding:80px 0}
}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{overflow-x:clip}
@media (hover:none){
  .prod:hover,#services .card:hover,.btn:hover{transform:none}
}
@media(max-width:640px){
  body{font-size:16px}
  .wrap{width:calc(100% - 32px)}
  .item a.lnk{display:inline-block;padding:10px 4px;margin:-10px 0 -10px 2px}
  .inl{display:inline-block;padding:10px 0;margin:-10px 0}
  .stats span,.steps small,.item time small,.prod .tag{font-size:13px}
  .stats div{padding:22px 12px 26px 0}
  .timeline{padding-left:22px}.item::before{left:-22px}
  .item{padding:18px 18px}
  .ai-card{padding:28px 22px}
  .card{padding:26px 22px}
  .grp{margin:36px 0 -24px}
  .steps li{padding:18px 16px;gap:10px}
  .filters button{padding:10px 16px}
  .btn{padding:14px 24px}
  .btn.big{font-size:20px;padding:16px 28px;width:100%;text-align:center}
  .mail{justify-items:stretch;width:100%}
  .foot-in{flex-direction:column;align-items:flex-start}
  .burger{display:block}
  #menu{position:fixed;inset:68px 0 auto;flex-direction:column;align-items:stretch;gap:0;background:#fff;color:var(--ink);padding:8px 20px 20px;box-shadow:0 20px 30px rgba(0,0,0,.12);transform:translateY(-130%);transition:.3s;visibility:hidden}
  #menu.open{transform:none;visibility:visible}
  #menu a{padding:14px 4px;border-bottom:1px solid var(--line)}
  #menu .btn{margin-top:14px;text-align:center}
  .nav.open-m{background:#fff}.nav.open-m .logo{color:var(--navy)}.nav.open-m .burger span{background:var(--navy)}
  .cards.three,.cards.four{grid-template-columns:1fr}
  .item{grid-template-columns:1fr;gap:6px}
  .item .pill{justify-self:start}
  .hero{padding-top:120px}
}