:root{
  --bg: #0b0f19;
  --bg2:#0e1629;
  --card:#0f172a;
  --card2:#0b1224;
  --text:#e6e9f2;
  --muted:#a7b0c5;
  --line: rgba(255,255,255,.10);
  --shadow: 0 24px 80px rgba(0,0,0,.35);
  --radius: 18px;
  --radius2: 24px;
  --accent: #7c5cff;
  --accent2:#34d399;
  --danger:#ff5c7a;
  --max: 1120px;
}

*{ box-sizing:border-box; }
/* html,body{ height:100%; } */
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", Arial, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 20% -10%, rgba(124,92,255,.25), transparent 60%),
    radial-gradient(900px 600px at 90% 10%, rgba(52,211,153,.16), transparent 55%),
    linear-gradient(180deg, var(--bg), #070a12 70%);
    /* linear-gradient(180deg, var(--bg1), var(--bg0)); */
    min-height:100vh;
  position: relative;
}

a{ color:inherit; text-decoration:none; }
.container{ width:min(var(--max), calc(100% - 40px)); margin:0 auto; }

.site-header{
  position:sticky;
  top:0;
  z-index:20;
  backdrop-filter: blur(14px);
  background: rgba(10,13,22,.65);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
}

.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:36px; height:36px; border-radius:12px;
  background:
    radial-gradient(14px 14px at 30% 35%, rgba(255,255,255,.22), transparent 60%),
    linear-gradient(135deg, rgba(124,92,255,.95), rgba(52,211,153,.85));
  box-shadow: 0 16px 50px rgba(124,92,255,.25);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.05; }
.brand-top{ font-weight:700; letter-spacing:-.2px; }
.brand-sub{ font-size:12px; color:var(--muted); margin-top:4px; }

.nav{ display:flex; gap:6px; flex-wrap:wrap; justify-content:flex-end; }
.nav-link{
  padding:10px 12px;
  border-radius: 12px;
  color: var(--muted);
  border:1px solid transparent;
}
.nav-link:hover{ color:var(--text); border-color: var(--line); background: rgba(255,255,255,.03); }
.nav-link.is-active{ color:var(--text); background: rgba(124,92,255,.12); border-color: rgba(124,92,255,.25); }

.purpose{
  margin-top: 24px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    radial-gradient(600px 320px at 15% 0%, rgba(124,92,255,.14), transparent 60%),
    radial-gradient(520px 260px at 85% 10%, rgba(52,211,153,.10), transparent 55%),
    rgba(255,255,255,.03);
  box-shadow: var(--shadow);
  padding: 18px 18px;
  overflow:hidden;
}

.purpose-head{ padding: 6px 6px 12px; }
.purpose-title{
  margin:0;
  font-size: 20px;
  letter-spacing:-.3px;
}
.purpose-sub{
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
  /* max-width: 80ch; */
  font-size: 16px;
}

.purpose-grid{
  margin-top: 14px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.purpose-card{
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.14);
  padding: 14px 14px;
  backdrop-filter: blur(10px);
}

.purpose-icon{
  width: 34px; height: 34px;
  display:grid; place-items:center;
  border-radius: 12px;
  border: 1px solid rgba(124,92,255,.28);
  background: rgba(124,92,255,.12);
  color: var(--text);
  font-weight: 800;
  margin-bottom: 10px;
  font-size: 12px;
}

.purpose-card h3{
  margin: 0 0 8px;
  font-size: 15px;
  letter-spacing:-.2px;
}
.purpose-card p{
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 14px;
}

.purpose-footer{
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}
.purpose-note{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: baseline;
}
.purpose-note strong{ letter-spacing:-.2px; }
.purpose-note span{ color: var(--muted); }

@media (max-width: 980px){
  .purpose-grid{ grid-template-columns: 1fr; }
}


.hero{
  position:relative;
  padding: 56px 0 22px;
}
.hero-bg{
  position:absolute; inset:0;
  background:
    radial-gradient(900px 500px at 55% 0%, rgba(124,92,255,.16), transparent 58%),
    radial-gradient(700px 420px at 35% 40%, rgba(52,211,153,.10), transparent 60%);
  pointer-events:none;
  opacity:.9;
}
/* .hero-grid{
  position:relative;
  display:grid;
  grid-template-columns: 1.2fr .9fr;
  gap: 28px;
  align-items:stretch;
} */

.pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  border:1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.hero-title{
  margin:14px 0 10px;
  font-size: clamp(30px, 3.2vw, 44px);
  letter-spacing: -0.8px;
  line-height:1.10;
}
.hero-one-liner{
  margin:0;
  color: var(--muted);
  font-size: 16px;
  line-height:1.65;
  max-width: 60ch;
}

.hero-cta{
  display:flex;
  gap:10px;
  margin-top: 18px;
  flex-wrap:wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
}
.btn:hover{ background: rgba(255,255,255,.06); }
.btn-primary{
  border-color: rgba(124,92,255,.30);
  background: linear-gradient(135deg, rgba(124,92,255,.22), rgba(124,92,255,.10));
  box-shadow: 0 18px 60px rgba(124,92,255,.15);
}
.btn-ghost{ color: var(--muted); }

.mini-facts{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
}
.mini-fact{
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  border-radius: 16px;
  padding: 12px 12px;
}
.mini-fact dt{
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.mini-fact dd{
  margin:0;
  font-weight: 650;
  letter-spacing: -.2px;
}

.hero-card{
  border-radius: var(--radius2);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  box-shadow: var(--shadow);
  overflow:hidden;
}
.hero-card-inner{
  padding: 18px 18px;
  background:
    radial-gradient(600px 280px at 70% 0%, rgba(52,211,153,.10), transparent 60%),
    radial-gradient(520px 260px at 20% 10%, rgba(124,92,255,.12), transparent 55%);
}
.card-title{ margin: 4px 0 10px; font-size: 16px; letter-spacing:-.2px; }
.checklist{ margin: 0; padding-left: 18px; color: var(--muted); line-height:1.65; }
.checklist li{ margin: 7px 0; }
.card-note{ margin: 12px 0 0; color: var(--text); opacity:.92; }

.section{ padding: 44px 0; }
.section-alt{
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-title{
  margin: 0 0 18px;
  font-size: 22px;
  letter-spacing: -.4px;
}

.two-col{
  display:grid;
  grid-template-columns: 1.25fr .95fr;
  gap: 22px;
  align-items:start;
}

.overview-figure{
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  /* background: rgba(255,255,255,.03); */
  /* box-shadow: var(--shadow); */
}
.overview-figure img{
  display:block;
  width: 100%;
  height: 600px;        /* 필요 시 220~320px 조절 */
  object-fit: cover;
}
.overview-figure figcaption{
  padding: 10px 12px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.prose{
  color: var(--muted);
  line-height: 1.75;
  font-size: 15px;
}
.prose p{ margin: 0 0 14px; }
.prose h3{ margin: 0 0 10px; color: var(--text); }
.narrow{ max-width: none; }

.callout{
  margin-top: 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(124,92,255,.22);
  background: rgba(124,92,255,.08);
  padding: 14px 14px;
}
.callout ol{ margin: 8px 0 0; padding-left: 18px; }
.callout li{ margin: 6px 0; }

.cards{
  display:grid;
  gap: 12px;
}
.info-card{
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 14px 14px;
}
.info-card h3{
  margin: 0 0 10px;
  font-size: 15px;
  letter-spacing:-.2px;
}
.info-card ul{ margin: 0; padding-left: 18px; color: var(--muted); }
.info-card li{ margin: 6px 0; }
.muted{color: var(--muted); }

.flow{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap: 10px;
  margin-top: 10px;
  margin-bottom: 10px;
}
.flow-item{
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 12px 12px;
  min-width: 170px;
}
.flow-item strong{ display:block; margin-top:6px; letter-spacing:-.2px; }
.flow-badge{
  display:inline-flex;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 8px;
  background: rgba(0,0,0,.12);
}
.flow-arrow{
  opacity: .55;
  color: var(--muted);
  user-select:none;
}

.steps{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.step{
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding: 14px 14px;
}
.step-num{
  width: 34px; height: 34px;
  display:grid; place-items:center;
  border-radius: 12px;
  background: rgba(52,211,153,.10);
  border: 1px solid rgba(52,211,153,.22);
  color: var(--text);
  font-weight: 800;
  margin-bottom: 10px;
}
.step h3{ margin:0 0 8px; font-size: 15px; }
.step p{ margin:0; color: var(--muted); line-height:1.65; }

.warn{
  margin-top: 12px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,92,122,.28);
  background: rgba(255,92,122,.08);
  padding: 12px 12px;
  color: var(--text);
}

.footer{
  border-top: 1px solid var(--line);
  padding: 22px 0;
  background: rgba(0,0,0,.12);
}
.footer-inner{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 16px;
}
.footer-brand{ font-weight: 800; margin-bottom: 6px; letter-spacing:-.2px; }
.footer-links{ display:flex; gap: 12px; flex-wrap:wrap; color: var(--muted); }
.footer-links a:hover{ color: var(--text); }

@media (max-width: 520px){
  .hero-grid{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: 1fr; }
  .mini-facts{ grid-template-columns: 1fr; }
  .nav{ justify-content:flex-start; }
}