:root{
  --bg:#05070d; --bg2:#0b1020; --panel:#0f1629; --line:#1d2742;
  --text:#e6ebf5; --muted:#8e9ab3; --accent:#7aa7ff; --accent2:#ffb86b;
  --ok:#5fd38d; --warn:#ffcf5c; --err:#ff6b6b;
  --radius:14px; --max:1120px;
  --font:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
#stars{position:fixed;inset:0;z-index:-1;width:100%;height:100%;display:block}

/* header */
.site-header{position:sticky;top:0;z-index:10;background:rgba(5,7,13,.72);backdrop-filter:blur(10px);border-bottom:1px solid rgba(29,39,66,.6)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;letter-spacing:.14em}
.brand:hover{text-decoration:none}
.brand svg{width:28px;height:28px}
.brand small{font-weight:500;letter-spacing:.08em;color:var(--muted);font-size:12px}
.nav{display:flex;gap:22px;align-items:center}
.nav a{color:var(--muted);font-size:15px}
.nav a:hover{color:var(--text);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--panel);color:var(--text);padding:9px 16px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit}
.btn:hover{border-color:var(--accent);text-decoration:none}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#06101f}
.btn.primary:hover{filter:brightness(1.08)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.menu-toggle{display:none;background:none;border:0;color:var(--text);font-size:22px;cursor:pointer}
@media (max-width:760px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:8px 0}
  .nav.open{display:flex}
  .nav a{padding:12px 20px;width:100%}
  .nav .btn{margin:8px 20px 12px}
  .menu-toggle{display:block}
}

/* hero */
.hero{min-height:calc(100vh - 64px);display:flex;align-items:center;padding:80px 0}
.eyebrow{color:var(--accent2);font-size:13px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;margin:0 0 18px}
.hero h1{font-size:clamp(38px,6.4vw,76px);line-height:1.08;margin:0 0 24px;letter-spacing:-.02em;font-weight:800}
.hero h1 span{background:linear-gradient(90deg,#9cc0ff,#7aa7ff 40%,#ffb86b);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(17px,2vw,20px);color:#c3cbe0;max-width:680px;margin:0 0 36px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}

/* sections */
section{padding:96px 0;border-top:1px solid rgba(29,39,66,.5)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head .eyebrow{margin-bottom:10px}
h2{font-size:clamp(28px,3.6vw,40px);line-height:1.2;margin:0 0 16px;letter-spacing:-.01em}
.section-head p{color:var(--muted);margin:0;font-size:17px}
.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.four{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid.three,.grid.four{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid.two,.grid.three,.grid.four{grid-template-columns:1fr}}
.card{background:linear-gradient(180deg,rgba(15,22,41,.92),rgba(11,16,32,.92));border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card h3{margin:0 0 8px;font-size:19px}
.card p{margin:0;color:var(--muted);font-size:15px}
.card .tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--accent2);margin-bottom:12px}
.track{padding:32px}
.track h3{font-size:22px}
.track ul{margin:18px 0 0;padding:0;list-style:none}
.track li{padding:10px 0;border-top:1px solid var(--line);color:#c3cbe0;font-size:15px;display:flex;gap:12px}
.track li b{color:var(--accent);min-width:28px;font-weight:700}
.steps{counter-reset:step}
.step{position:relative;padding-top:52px}
.step::before{counter-increment:step;content:"0" counter(step);position:absolute;top:22px;left:26px;font-weight:800;color:var(--accent);font-size:15px;letter-spacing:.1em}
.principle{border-left:3px solid var(--accent2);padding:18px 24px;background:rgba(255,184,107,.06);border-radius:0 var(--radius) var(--radius) 0;margin-top:28px;color:#d9dfee}
.principle b{color:var(--accent2)}
.contact{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.site-footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:14px}
.site-footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.hero{border-top:0}
.muted-p{color:var(--muted);margin:0}
/* 한국어 단어 중간 줄바꿈 방지 */
body{word-break:keep-all;overflow-wrap:break-word}
@media (max-width:760px){.nav a.btn{width:auto;align-self:flex-start}}