:root{
  --navy:#142642; --navy-700:#1d3558; --white:#fff; --bg-sub:#F3F5F8; --accent:#6B83A5;
  --text:#142642; --muted:#4a5a73; --line:#dde2ea; --danger:#b3261e; --ok:#1b6b3a;
  --radius:14px; --maxw:1120px;
  font-family:"Pretendard Variable",Pretendard,"Noto Sans KR",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:var(--white);line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased;word-break:keep-all}
img{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip-link:focus{left:8px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;text-decoration:none;letter-spacing:-.02em}
.site-nav{display:flex;align-items:center;gap:26px;font-size:.95rem;font-weight:500}
.site-nav a{text-decoration:none;color:var(--muted)}
.site-nav a:hover,.site-nav a[aria-current]{color:var(--navy)}
.site-nav a[aria-current]{font-weight:700}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 14px;font:inherit;color:var(--navy);cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 28px;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;font-size:1rem;cursor:pointer;font-family:inherit;transition:background .15s,color .15s}
.btn-primary{background:var(--navy);color:#fff!important}
.btn-primary:hover{background:var(--navy-700)}
.btn-outline{border-color:var(--navy);color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:var(--bg-sub)}
.btn-ghost-light{border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--navy)}
.btn-sm{padding:9px 18px;font-size:.92rem}
.btn[disabled]{opacity:.6;cursor:not-allowed}

/* sections */
.section{padding:96px 0}
.section.alt{background:var(--bg-sub)}
.eyebrow{color:#4F678C;font-weight:700;font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 12px}
h1,h2,h3{line-height:1.3;letter-spacing:-.02em;margin:0}
h1{font-size:clamp(2.1rem,5vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:800;margin-bottom:16px}
h3{font-size:1.2rem;font-weight:700;margin-bottom:8px}
.lead{font-size:1.15rem;color:var(--muted);max-width:640px}
.section-head{margin-bottom:48px;max-width:720px}

.hero{padding:110px 0 100px;background:linear-gradient(180deg,#fff 0,var(--bg-sub) 100%)}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{margin:24px 0 36px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px}

.grid{display:grid;gap:22px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-center{grid-template-columns:minmax(0,520px);justify-content:center}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.alt .card{border-color:transparent}
.card p{margin:0;color:var(--muted);font-size:.97rem}
.tag{display:inline-block;font-size:.75rem;font-weight:700;color:var(--navy);background:var(--bg-sub);border-radius:999px;padding:3px 10px;margin-bottom:12px}
.alt .tag{background:#fff}
.num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;margin-bottom:14px}

.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:0;list-style:none;margin:0}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.steps li::before{counter-increment:s;content:counter(s);display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;margin-bottom:12px}
.steps li p{margin:0;color:var(--muted);font-size:.95rem}
.note{font-size:.88rem;color:var(--muted);margin-top:24px}

.cta-band{background:var(--navy);color:#fff;border-radius:22px;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:32px}
.cta-band p{color:#d6deea;margin:8px 0 0}
.cta-band h2{margin:0;color:#fff}
.cta-band.alt-band{background:var(--navy-700)}
.band-stack{display:grid;gap:22px}

/* forms (다음 단계에서 사용) */
.form{display:grid;gap:20px;max-width:640px}
.field label{display:block;font-weight:600;margin-bottom:6px}
.field .req{color:var(--danger)}
.field input,.field select,.field textarea{width:100%;padding:13px 14px;border:1.5px solid #707d93;border-radius:10px;font:inherit;color:var(--text);background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--navy)}
.field .err{color:var(--danger);font-size:.88rem;margin-top:4px;min-height:1em}
.field label.check{display:flex;gap:10px;align-items:flex-start;font-weight:500}
.field input[type=checkbox]{width:20px;height:20px;margin-top:3px;flex:none;accent-color:var(--navy)}
.form-status{outline:none}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form-status{padding:14px 16px;border-radius:10px;font-weight:600}
.form-status.ok{background:#e7f4ec;color:var(--ok)}
.form-status.fail{background:#fbeae9;color:var(--danger)}

/* footer */
.site-footer{background:var(--navy);color:#cfd8e6;padding:64px 0 28px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1.4fr;gap:40px}
.footer-brand{color:#fff;font-weight:800;font-size:1.25rem;margin:0}
.brand-logo{border-radius:50%;display:block}
.footer-brand small{text-transform:uppercase;letter-spacing:.08em;font-weight:500;color:#9fb4d3;margin-left:6px}
.footer-tag{margin:8px 0 0}
.footer-links{display:grid;gap:8px;align-content:start}
.footer-links a{text-decoration:none}
.footer-links a:hover{color:#fff;text-decoration:underline}
.company-info{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.site-footer .company-info span{color:#fff;font-weight:600;margin-right:6px}
.footer-copy{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.15);color:#9fb0c8}

@media (max-width:900px){
  .grid-4,.grid-3,.steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
}
@media (max-width:720px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 20px;border-bottom:1px solid var(--line)}
  .site-nav.open{display:flex}
  .site-nav a{padding:12px 0}
  .site-nav .btn{margin-top:8px}
  .section{padding:64px 0}
  .hero{padding:72px 0 64px}
  .grid-4,.grid-3,.grid-2,.steps{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}