:root{
  --navy:#0B1C3F; --navy-2:#122A5C; --blue:#1F5BFF; --sky:#5EA8FF; --ice:#EAF2FF;
  --ink:#1C2230; --gray:#5B6474; --line:#E3E8F0; --bg:#FFFFFF; --soft:#F5F8FC;
  --radius:18px; --wrap:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Pretendard Variable",Pretendard,-apple-system,"Noto Sans KR",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.pc{display:inline}
@media(max-width:768px){.pc{display:none}}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:.3s;padding:18px 0}
.nav .wrap{display:flex;align-items:center;justify-content:space-between}
.nav.solid{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line);padding:12px 0}
.brand{font-weight:800;letter-spacing:.14em;font-size:19px;color:#fff;display:flex;align-items:center;gap:10px;transition:.3s}
.nav.solid .brand{color:var(--navy)}
.brand-mark{width:14px;height:14px;border-radius:4px;background:linear-gradient(135deg,var(--sky),var(--blue));display:inline-block;transform:rotate(45deg)}
.menu{display:flex;gap:30px;align-items:center;font-size:15px;font-weight:500;color:rgba(255,255,255,.85)}
.nav.solid .menu{color:var(--ink)}
.menu a:hover{color:var(--sky)}
.btn-nav{background:var(--blue);color:#fff!important;padding:9px 18px;border-radius:999px;font-weight:600}
.burger{display:none;background:none;border:0;width:40px;height:40px;flex-direction:column;justify-content:center;gap:5px;cursor:pointer}
.burger span{display:block;height:2px;background:#fff;transition:.3s}
.nav.solid .burger span{background:var(--navy)}
@media(max-width:900px){
  .menu{position:fixed;inset:0;background:var(--navy);flex-direction:column;justify-content:center;gap:28px;font-size:20px;color:#fff;transform:translateX(100%);transition:.35s}
  .nav.solid .menu{color:#fff}
  .menu.open{transform:none}
  .burger{display:flex;z-index:60}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);background:#fff}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:#fff}
}

/* HERO */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:radial-gradient(120% 90% at 20% 10%,#17336F 0%,var(--navy) 55%,#060F26 100%);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;animation:float 18s ease-in-out infinite}
.orb-a{width:520px;height:520px;background:#1F5BFF;top:-120px;right:-80px}
.orb-b{width:420px;height:420px;background:#5EA8FF;bottom:-160px;left:10%;animation-delay:-6s;opacity:.35}
.orb-c{width:300px;height:300px;background:#7C4DFF;top:40%;left:55%;animation-delay:-12s;opacity:.25}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(-30px,40px)}}
.grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:80px 80px;mask-image:radial-gradient(70% 70% at 50% 50%,#000 30%,transparent 100%)}
.hero-in{position:relative;padding-top:140px;padding-bottom:120px}
.eyebrow{font-size:14px;letter-spacing:.3em;text-transform:uppercase;color:var(--sky);font-weight:600;margin-bottom:22px}
.hero h1{font-size:clamp(42px,7vw,84px);line-height:1.12;font-weight:800;letter-spacing:-.02em;margin-bottom:28px}
.hero .lead{font-size:clamp(16px,1.6vw,20px);color:rgba(255,255,255,.78);max-width:720px;margin-bottom:40px}
.hero .lead strong{color:#fff}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:70px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:15px 30px;border-radius:999px;font-weight:700;font-size:16px;transition:.25s;border:1.5px solid transparent}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 30px rgba(31,91,255,.35)}
.btn-primary:hover{background:#1748d6;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn.full{width:100%}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:760px;border-top:1px solid rgba(255,255,255,.15);padding-top:32px}
.hero-stats b{display:block;font-size:clamp(28px,3.4vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1}
.hero-stats b span{color:var(--sky);font-size:.6em;margin-left:2px}
.hero-stats small{display:block;color:rgba(255,255,255,.6);font-size:13px;margin-top:8px}
@media(max-width:600px){.hero-stats{grid-template-columns:repeat(2,1fr)}}
.scroll-hint{position:absolute;bottom:30px;left:50%;width:1px;height:50px;background:rgba(255,255,255,.2);overflow:hidden}
.scroll-hint span{position:absolute;top:0;left:0;width:100%;height:40%;background:#fff;animation:drop 2s infinite}
@keyframes drop{0%{top:-40%}100%{top:100%}}

/* STRIP */
.strip{background:var(--navy-2);color:rgba(255,255,255,.55);padding:16px 0;overflow:hidden;font-size:14px;letter-spacing:.04em}
.strip .wrap{max-width:none;padding:0}
.strip p{white-space:nowrap;display:inline-block;animation:marquee 60s linear infinite}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* SECTIONS */
.sec{padding:120px 0}
@media(max-width:768px){.sec{padding:80px 0}}
.sec-soft{background:var(--soft)}
.sec-dark{background:var(--navy);color:#fff}
.sec-head{margin-bottom:60px;max-width:820px}
.label{font-size:13px;letter-spacing:.25em;text-transform:uppercase;font-weight:700;color:var(--blue);margin-bottom:16px}
.sec-dark .label{color:var(--sky)}
.sec h2{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.3;letter-spacing:-.02em}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:start}
@media(max-width:900px){.about-grid{grid-template-columns:1fr;gap:40px}}
.about-text p{font-size:17px;color:var(--gray);margin-bottom:20px}
.about-text strong{color:var(--navy)}
.sign{color:var(--ink)!important;margin-top:30px}
.sign b{font-size:20px;margin-left:6px}
.values{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.val{background:var(--soft);border-radius:var(--radius);padding:26px 24px;border:1px solid var(--line);transition:.3s}
.val:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(11,28,63,.08)}
.val span{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.2em}
.val h4{font-size:20px;font-weight:800;margin:8px 0 6px}
.val p{font-size:14px;color:var(--gray)}

/* WHY */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.why-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.why-grid{grid-template-columns:1fr}}
.why{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:34px 28px;transition:.3s}
.why:hover{background:rgba(255,255,255,.09);border-color:rgba(94,168,255,.5);transform:translateY(-4px)}
.why-ico{width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,var(--blue),var(--sky));display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:22px}
.why h3{font-size:20px;font-weight:800;margin-bottom:12px}
.why p{font-size:15px;color:rgba(255,255,255,.72)}

/* SERVICE */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:90px}
@media(max-width:900px){.svc-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.svc-grid{grid-template-columns:1fr}}
.svc{border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;position:relative;overflow:hidden;transition:.3s}
.svc::before{content:"";position:absolute;left:0;top:0;width:4px;height:0;background:var(--blue);transition:.3s}
.svc:hover{box-shadow:0 16px 40px rgba(11,28,63,.08)}
.svc:hover::before{height:100%}
.svc h4{font-size:18px;font-weight:800;margin-bottom:10px;color:var(--navy)}
.svc p{font-size:14px;color:var(--gray)}
.equip{background:var(--navy);color:#fff;border-radius:28px;padding:60px}
@media(max-width:768px){.equip{padding:40px 24px}}
.equip-head{margin-bottom:40px;max-width:700px}
.equip-head h3{font-size:28px;font-weight:800;margin-bottom:10px}
.equip-head p{color:rgba(255,255,255,.7)}
.equip-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:28px}
@media(max-width:1000px){.equip-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.equip-grid{grid-template-columns:1fr 1fr}}
.equip h5{font-size:14px;color:var(--sky);letter-spacing:.08em;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.15)}
.equip li{font-size:14px;color:rgba(255,255,255,.8);margin-bottom:6px}

/* PROCESS */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:s}
@media(max-width:1000px){.steps{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.steps{grid-template-columns:1fr}}
.steps li{background:#fff;border-radius:var(--radius);padding:30px 24px;border:1px solid var(--line);position:relative}
.steps li span{display:inline-block;background:var(--ice);color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.15em;padding:5px 12px;border-radius:999px;margin-bottom:16px}
.steps h4{font-size:19px;font-weight:800;margin-bottom:8px}
.steps p{font-size:14px;color:var(--gray)}

/* PORTFOLIO */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:90px}
@media(max-width:900px){.cases{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.cases{grid-template-columns:1fr}}
.case{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;transition:.3s}
.case:hover{transform:translateY(-6px);box-shadow:0 22px 50px rgba(11,28,63,.12)}
.case-img{aspect-ratio:16/10;background-size:cover;background-position:center;position:relative}
.case-img::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(255,255,255,.08),transparent 40%)}
.c1{background:linear-gradient(135deg,#0B1C3F,#1F5BFF)}
.c2{background:linear-gradient(135deg,#0E3A5E,#3FA6D8)}
.c3{background:linear-gradient(135deg,#1A1F3A,#6B5CFF)}
.c4{background:linear-gradient(135deg,#3A2A00,#D7A531)}
.c5{background:linear-gradient(135deg,#0B2E2A,#2EBF9B)}
.c6{background:linear-gradient(135deg,#2A0B3A,#C14DFF)}
.case-body{padding:22px 24px 26px}
.case-body span{font-size:12px;color:var(--blue);font-weight:700;letter-spacing:.04em}
.case-body h4{font-size:18px;font-weight:800;margin:8px 0 6px;line-height:1.35}
.case-body p{font-size:14px;color:var(--gray)}
.timeline{display:grid;grid-template-columns:repeat(7,1fr);gap:0;border-top:2px solid var(--line);padding-top:30px}
@media(max-width:1000px){.timeline{grid-template-columns:repeat(4,1fr)}}
@media(max-width:640px){.timeline{grid-template-columns:1fr 1fr}}
.tl{padding:0 16px 20px 0;position:relative}
.tl::before{content:"";position:absolute;top:-37px;left:0;width:10px;height:10px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px #fff,0 0 0 5px var(--blue)}
.tl b{display:block;font-size:22px;font-weight:800;color:var(--navy);margin-bottom:8px}
.tl p{font-size:13px;color:var(--gray)}

/* CLIENTS */
.client-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media(max-width:800px){.client-cols{grid-template-columns:1fr}}
.client-cols div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.client-cols h5{font-size:16px;font-weight:800;color:var(--navy);margin-bottom:14px;padding-bottom:12px;border-bottom:2px solid var(--ice)}
.client-cols p{font-size:14px;color:var(--gray);line-height:1.9}
.note{font-size:13px;color:#8A94A6;margin-top:20px}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:50px}}
.contact .lead{color:rgba(255,255,255,.72);margin:22px 0 36px;font-size:17px}
.contact-list li{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:16px}
.contact-list span{width:80px;flex:none;color:var(--sky);font-size:12px;letter-spacing:.15em;font-weight:700;padding-top:4px}
.contact-list a:hover{color:var(--sky)}
.form{background:#fff;color:var(--ink);border-radius:24px;padding:40px;box-shadow:0 30px 80px rgba(0,0,0,.3)}
@media(max-width:600px){.form{padding:28px 22px}}
.form label{display:block;font-size:13px;font-weight:700;color:var(--gray);margin-bottom:16px}
.form input,.form textarea{display:block;width:100%;margin-top:6px;padding:13px 14px;border:1.5px solid var(--line);border-radius:12px;font:inherit;font-size:15px;color:var(--ink);background:var(--soft);transition:.2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue);background:#fff}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:520px){.form .row{grid-template-columns:1fr}}
.form-note{font-size:12px;color:#8A94A6;margin-top:14px;text-align:center}

/* FOOTER */
.foot{background:#060F26;color:rgba(255,255,255,.55);padding:50px 0;font-size:13px;line-height:1.9}
.foot-brand{color:#fff;font-weight:800;letter-spacing:.14em;font-size:17px;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.copy{margin-top:14px;color:rgba(255,255,255,.3)}

/* REVEAL */
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}