/* ============ Fonts ============ */
@font-face{font-family:'Paperlogy';font-weight:400;font-display:swap;src:url('../assets/fonts/Paperlogy-400.woff2') format('woff2')}
@font-face{font-family:'Paperlogy';font-weight:500;font-display:swap;src:url('../assets/fonts/Paperlogy-500.woff2') format('woff2')}
@font-face{font-family:'Paperlogy';font-weight:700;font-display:swap;src:url('../assets/fonts/Paperlogy-700.woff2') format('woff2')}
@font-face{font-family:'Paperlogy';font-weight:800;font-display:swap;src:url('../assets/fonts/Paperlogy-800.woff2') format('woff2')}
@font-face{font-family:'InterW';font-weight:400;font-display:swap;src:url('../assets/fonts/Inter-400.woff2') format('woff2')}
@font-face{font-family:'InterW';font-weight:500;font-display:swap;src:url('../assets/fonts/Inter-500.woff2') format('woff2')}
@font-face{font-family:'InterW';font-weight:600;font-display:swap;src:url('../assets/fonts/Inter-600.woff2') format('woff2')}
@font-face{font-family:'InterW';font-weight:700;font-display:swap;src:url('../assets/fonts/Inter-700.woff2') format('woff2')}
@font-face{font-family:'InterW';font-weight:800;font-display:swap;src:url('../assets/fonts/Inter-800.woff2') format('woff2')}

/* ============ Tokens ============ */
:root{
  --navy:#303C4E; --navy2:#414F63; --blue:#2A5CCB; --blue-lt:#6E9BE8;
  --slate:#5A6B8C; --cream:#FAF7F2; --white:#fff; --border:#E7E2EC;
  --sub:#7A8694; --card:#3E4C60; --t-blue:#ECF1FA;
  --maxw:1120px; --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:78px}
body{font-family:'Paperlogy','InterW',sans-serif;color:var(--navy);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
.en{font-family:'InterW','Paperlogy',sans-serif}
a{color:inherit;text-decoration:none}
img,svg{display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ============ Header / Nav ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:box-shadow .2s}
.site-header.scrolled{box-shadow:0 4px 20px rgba(48,60,78,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand img{height:28px;width:auto}
.nav{display:flex;align-items:center;gap:4px}
.nav>a{font-size:14px;font-weight:500;color:var(--navy);padding:9px 13px;border-radius:9px;transition:all .15s}
.nav>a .en{font-size:11px;color:var(--sub);margin-left:3px}
.nav>a:hover{background:var(--t-blue);color:var(--blue)}
.nav-cta{background:var(--blue)!important;color:#fff!important;font-weight:600;margin-left:8px}
.nav-cta:hover{background:#2450b4!important}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--navy);border-radius:2px;transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FBF9F5,#fff);padding:96px 0 88px}
.hero-net{position:absolute;right:-60px;top:-20px;width:min(560px,52vw);height:auto;opacity:.5;z-index:0;pointer-events:none}
.hero-inner{position:relative;z-index:1;max-width:820px}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.22em;color:var(--blue)}
.hero h1{font-size:clamp(30px,5vw,52px);font-weight:800;letter-spacing:-.025em;line-height:1.18;color:var(--navy);margin:16px 0 14px}
.hero-en{font-size:clamp(15px,2.4vw,20px);font-weight:600;color:var(--slate);letter-spacing:.01em}
.hero-lead{font-size:clamp(15px,2vw,17px);color:var(--navy2);margin:22px 0 34px;max-width:660px}
.hero-lead b{color:var(--blue);font-weight:700}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}

/* ============ Buttons ============ */
.btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;padding:13px 24px;border-radius:12px;transition:all .18s;cursor:pointer;border:1px solid transparent}
.btn .en{font-size:12px;font-weight:500;opacity:.85}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(42,92,203,.22)}
.btn-primary:hover{background:#2450b4;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn.lg{padding:15px 30px;font-size:16px}

/* ============ Sections ============ */
.section{padding:88px 0}
.section-alt{background:var(--cream)}
.sec-head{max-width:720px;margin:0 auto 44px;text-align:center}
.tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--blue);margin-bottom:12px}
.tag.accent{color:var(--blue-lt)}
.sec-head h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;letter-spacing:-.02em;color:var(--navy);line-height:1.25}
.sec-lead{font-size:15.5px;color:var(--sub);margin-top:12px}

/* ============ Grids & Cards ============ */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* 철학 statement */
.stmt-grid{margin-bottom:22px}
.stmt{background:var(--t-blue);border:1px solid #D5E2F7;border-radius:var(--radius);padding:26px 28px}
.stmt h3{font-size:19px;font-weight:800;color:var(--navy);margin-bottom:6px;letter-spacing:-.01em}
.stmt h3 b{color:var(--blue)}
.stmt p{font-size:14.5px;color:var(--navy2)}
.subhead{text-align:center;font-size:15px;font-weight:700;color:var(--navy);margin:38px 0 22px;letter-spacing:-.01em}
.subhead .en{font-size:12px;color:var(--sub);font-weight:500;margin-left:6px}

/* why 강점 */
.why{position:relative;padding-top:34px}
.why-no{font-family:'InterW';position:absolute;top:20px;right:24px;font-size:13px;font-weight:800;color:var(--blue);opacity:.55}

/* 서비스 상세 리스트 */
.svc .svc-tag{font-size:13px;color:var(--blue);font-weight:600;margin:2px 0 14px}
.svc ul{list-style:none;display:grid;gap:9px}
.svc ul li{position:relative;padding-left:18px;font-size:13.5px;color:var(--navy2);line-height:1.55}
.svc ul li::before{content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--blue)}

.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:30px 28px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(48,60,78,.08)}
.card h3{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:8px;letter-spacing:-.01em}
.card h3 .en{font-size:12px;font-weight:500;color:var(--sub);margin-left:5px}
.card p{font-size:14.5px;color:var(--navy2)}
.card-en{font-family:'InterW';font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--blue);margin-bottom:12px}
.section-alt .card{background:#fff}
.icon-card .ic{width:52px;height:52px;border-radius:13px;background:var(--t-blue);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.icon-card .ic svg{width:26px;height:26px}
.svc{position:relative;padding-top:34px}
.svc-no{font-family:'InterW';position:absolute;top:22px;right:26px;font-size:13px;font-weight:800;color:var(--blue);background:var(--t-blue);padding:4px 10px;border-radius:8px}

/* ============ Dark section (brands) ============ */
.section-dark{background:var(--navy);color:#fff}
.section-dark h2{color:#fff}
.section-dark .sec-lead{color:#AEB6C4}
.brand-card{background:var(--card);border:1px solid #4A5568;border-radius:14px;padding:22px 22px}
.brand-card .dot{display:block;width:10px;height:10px;border-radius:50%;margin-bottom:14px}
.brand-card .dot.blue{background:var(--blue)}
.brand-card .dot.slate{background:var(--slate)}
.brand-card .bn{font-family:'InterW';font-size:17px;font-weight:700;letter-spacing:-.01em;color:#fff}
.brand-card .bn b{font-weight:400;color:rgba(255,255,255,.6)}
.brand-card .bd{font-size:13px;font-weight:600;color:var(--blue-lt);margin-top:6px}
.brand-card p{font-size:13px;color:#AEB6C4;margin-top:8px;line-height:1.65}
.brand-card:hover{border-color:var(--blue)}

/* ============ Process (5 steps) ============ */
.process{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:p}
.process li{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;position:relative}
.process .p-no{font-family:'InterW';font-size:30px;font-weight:800;color:var(--t-blue);line-height:1}
.process h3{font-size:17px;font-weight:700;color:var(--navy);margin:10px 0 6px}
.process p{font-size:13.5px;color:var(--navy2)}
.process li::after{content:"";position:absolute;top:50%;right:-11px;width:11px;height:2px;background:var(--border)}
.process li:last-child::after{display:none}

/* ============ Contact ============ */
.section-contact{background:var(--navy);color:#fff}
.section-contact .sec-lead{color:#AEB6C4}
.section-contact h2{color:#fff;font-size:clamp(26px,3.6vw,36px);font-weight:800;letter-spacing:-.02em;margin-bottom:10px}
.contact-inner{text-align:center}
.contact-block{max-width:660px;margin:0 auto}
.contact-email{margin:20px 0 24px;font-family:'InterW'}
.contact-email a{font-size:21px;font-weight:700;color:#EAF0F7;letter-spacing:.01em}
.contact-email a:hover{color:var(--blue-lt)}
.contact-inner .tag{display:inline-block}
.contact-list{list-style:none;display:grid;gap:16px}
.contact-list li{display:flex;gap:16px;align-items:baseline;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.12)}
.contact-list li:last-child{border-bottom:0}
.cl-label{font-family:'InterW';font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--blue-lt);min-width:74px}
.contact-list a,.contact-list span{font-size:15px;color:#EAF0F7}
.contact-list a:hover{color:var(--blue-lt)}

/* ============ Footer ============ */
.site-footer{background:#fff;color:var(--sub);padding:22px 0;border-top:1px solid var(--border)}
.footer-inner{display:flex;justify-content:flex-end;align-items:center;gap:24px;flex-wrap:wrap}
.footer-inner img{height:26px}
.foot-tag{font-size:13px;color:var(--sub);margin-top:12px}
.foot-meta{font-size:12.5px;text-align:right;line-height:1.35;font-family:'InterW';color:var(--sub)}
.foot-meta p{margin:0}

/* ============ Reveal (JS 없으면 그대로 노출) ============ */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}


/* ============ Back to top ============ */
.to-top{position:fixed;right:22px;bottom:22px;z-index:90;width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(42,92,203,.32);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .25s,visibility .25s}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top svg{width:20px;height:20px}
.to-top:hover{background:#2450b4}

/* ============ Responsive ============ */
@media(max-width:980px){
  .process{grid-template-columns:repeat(3,1fr)}
  .process li::after{display:none}
}
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-toggle{display:flex}
  .nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--border);padding:10px 16px 18px;transform:translateY(-140%);transition:transform .28s ease;box-shadow:0 12px 24px rgba(48,60,78,.1)}
  .nav.open{transform:none}
  .nav>a{padding:14px 8px;border-bottom:1px solid #F1EEF3;border-radius:0}
  .nav-cta{margin:12px 0 0;border-radius:11px;text-align:center;justify-content:center}
  .grid-2,.grid-3,.grid-4,.stmt-grid{grid-template-columns:1fr}
  .process{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
  .hero{padding:70px 0 64px}
  .footer-inner{flex-direction:column;align-items:flex-end}
  .foot-meta{text-align:right}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
}