:root{
  --bg:#08090B; --bg-alt:#0D0F13; --surface:#121419;
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16);
  --fg:#EDEFF2; --muted:#98A0AB; --accent:#3DE0B0; --accent-dim:#1E8C6D;
  --wrap:1120px; --gut:24px;
  --f:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,system-ui,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f);
  font-size:16px;line-height:1.7;letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;word-break:keep-all}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.03em;line-height:1.25}
p{margin:0}
a{color:inherit;text-decoration:none}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.wrap--narrow{max-width:760px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:var(--gut);top:12px;z-index:99;background:var(--accent);color:#04120D;
  padding:10px 16px;border-radius:8px;font-weight:600}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.eyebrow{font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:18px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(8,9,11,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:10px;margin-right:auto}
.logo__mark{width:12px;height:12px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px rgba(61,224,176,.16);flex:none;
  animation:pulse 2.8s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(61,224,176,.16)}50%{box-shadow:0 0 0 8px rgba(61,224,176,.06)}}
.logo__text{font-size:15px;font-weight:500;letter-spacing:.1em}
.logo__text b{font-weight:800;color:var(--accent)}
.logo__text--sm{font-size:13px}
.nav__links{display:flex;gap:28px;font-size:14px;color:var(--muted)}
.nav__links a{transition:color .18s}
.nav__links a:hover{color:var(--fg)}
@media (max-width:760px){.nav__links{display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent);color:#04120D;font-weight:700;font-size:15px;
  padding:13px 26px;border-radius:999px;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px rgba(61,224,176,.55)}
.btn:active{transform:translateY(0)}
.btn--sm{padding:9px 18px;font-size:13.5px}
.btn--lg{padding:17px 34px;font-size:17px;margin-top:28px}
.btn--ghost{background:transparent;color:var(--fg);border:1px solid var(--line-2)}
.btn--ghost:hover{background:rgba(255,255,255,.05);border-color:var(--accent);
  box-shadow:none;transform:translateY(-2px)}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(88px,15vw,168px) 0 clamp(72px,11vw,124px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:-40% -10% auto;height:120%;
  background:radial-gradient(56% 46% at 22% 12%,rgba(61,224,176,.13),transparent 68%);
  pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 75%);
  mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 75%);opacity:.5}
.hero .wrap{position:relative;z-index:1}
.hero__h{font-size:clamp(34px,6.4vw,64px);letter-spacing:-.04em;line-height:1.18}
.hero__h em{font-style:normal;color:var(--accent)}
.hero__p{margin-top:26px;max-width:60ch;color:var(--muted);font-size:clamp(15px,1.6vw,18px)}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
.hero__rule{height:1px;background:linear-gradient(90deg,transparent,var(--accent-dim),transparent);
  margin-top:clamp(56px,9vw,104px)}
@media (max-width:640px){.br-d{display:none}}

/* ---------- sections ---------- */
.sec{padding:clamp(72px,11vw,120px) 0}
.sec--alt{background:var(--bg-alt);border-block:1px solid var(--line)}
.sec__h{font-size:clamp(26px,3.6vw,40px);margin-bottom:clamp(36px,5vw,56px)}

.grid{display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:18px;overflow:hidden;
  grid-template-columns:1fr}
@media (min-width:720px){.grid{grid-template-columns:repeat(2,1fr)}}
.card{background:var(--bg);padding:34px 30px 38px;transition:background .2s}
.card:hover{background:var(--surface)}
.card__n{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--accent-dim);margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:12px}
.card p{color:var(--muted);font-size:15px}

.steps{display:grid;gap:0}
.steps li{display:grid;grid-template-columns:76px 1fr;gap:0 28px;
  padding:30px 0;border-top:1px solid var(--line);align-items:start}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps__n{grid-row:span 2;font-size:22px;font-weight:800;color:var(--accent);
  letter-spacing:-.02em;padding-top:2px}
.steps h3{font-size:19px;margin-bottom:8px}
.steps p{color:var(--muted);font-size:15px;max-width:62ch}
@media (max-width:560px){
  .steps li{grid-template-columns:1fr;gap:6px}
  .steps__n{grid-row:auto;font-size:13px;letter-spacing:.14em}
}

.info{border-top:1px solid var(--line)}
.info>div{display:grid;grid-template-columns:200px 1fr;gap:16px;
  padding:18px 4px;border-bottom:1px solid var(--line)}
.info dt{color:var(--muted);font-size:14.5px}
.info dd{font-size:15.5px;font-weight:500}
.info dd a{color:var(--accent);border-bottom:1px solid rgba(61,224,176,.35)}
@media (max-width:560px){.info>div{grid-template-columns:1fr;gap:4px;padding:16px 4px}}

.cta{padding:clamp(80px,12vw,128px) 0;text-align:center;
  background:var(--bg-alt);border-top:1px solid var(--line)}
.cta h2{font-size:clamp(25px,3.6vw,38px)}
.cta p{margin-top:16px;color:var(--muted);font-size:16.5px}

.foot{border-top:1px solid var(--line);padding:32px 0}
.foot__in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.foot__c{color:var(--muted);font-size:13px}