:root{
  --bg:#050508;
  --fg:#f5f4ff;
  --muted:rgba(245,244,255,.72);
  --line:rgba(245,244,255,.14);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  background: var(--bg);
  color: var(--fg);
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; text-underline-offset: 4px; }

/* Top bar */
.topbar{
  position:fixed;
  top:0; left:0; right:0;
  z-index:20;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 22px;
  background: rgba(5,5,8,.55);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}

.brand{
  letter-spacing:.18em;
  text-transform:uppercase;
  font-size:12px;
  opacity:.95;
}
.nav{
  display:flex;
  gap:22px;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  opacity:.9;
}

/* Hero */
.hero{
  position:relative;
  min-height: 86vh;
  padding-top: 78px;
  display:grid;
  place-items:center;
  overflow:hidden;
}

.hero-bg{
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 420px at 50% 0%, rgba(124,77,255,.20), transparent 55%),
    radial-gradient(720px 520px at 18% 70%, rgba(255,59,215,.10), transparent 55%),
    linear-gradient(to bottom, rgba(0,0,0,.20), rgba(0,0,0,.62)),
    url("./assets/hero.jpg");
  background-size: cover;
  background-position: center center;
  filter: saturate(.95) contrast(1.02);
  transform: scale(1.04);
}

.grain{
  position:absolute;
  inset:-20%;
  opacity:.12;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  pointer-events:none;
}

.hero-inner{
  position:relative;
  text-align:center;
  width:min(980px, 92vw);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 18px;
  transform: translateY(18px);
}

/* Logo (purple only) */
.logo{
  width:min(860px, 92vw);
  height:auto;
  display:block;
  filter:
    drop-shadow(0 18px 45px rgba(0,0,0,.65))
    drop-shadow(0 0 22px rgba(124,77,255,.18));
}

/* CTA buttons */
.cta{
  display:flex;
  gap:12px;
  justify-content:center;
  flex-wrap:wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid rgba(245,244,255,.22);
  background: rgba(0,0,0,.30);
  backdrop-filter: blur(10px);
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:11px;
  text-decoration:none;
}

.btn:hover{
  border-color: rgba(245,244,255,.42);
  text-decoration:none;
}

.btn.primary{
  border-color: rgba(255,59,215,.35);
  box-shadow: 0 0 0 1px rgba(255,59,215,.10) inset;
}

/* Sections */
.section{
  padding: 86px 22px;
  border-top: 1px solid rgba(245,244,255,.08);
  background: linear-gradient(to bottom, rgba(5,5,8,.72), rgba(5,5,8,1));
}

.section-head{
  width:min(980px, 92vw);
  margin:0 auto 22px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
}

.section-head h2{
  margin:0;
  letter-spacing:.22em;
  text-transform:uppercase;
  font-size:12px;
  opacity:.92;
}
.section-head p{
  margin:0;
  color:var(--muted);
  font-size:13px;
}

.grid{
  width:min(980px, 92vw);
  margin:0 auto;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}

.card{
  display:block;
  border-radius:18px;
  overflow:hidden;
  border:1px solid rgba(245,244,255,.10);
  background: rgba(255,255,255,.03);
  box-shadow: 0 18px 40px rgba(0,0,0,.35);
}
.card img{
  width:100%;
  height:230px;
  object-fit:cover;
  display:block;
}
.card:hover{
  border-color: rgba(245,244,255,.22);
}

.placeholder{
  width:min(980px, 92vw);
  margin:0 auto;
  padding: 36px;
  border-radius:18px;
  border:1px dashed rgba(245,244,255,.18);
  background: rgba(255,255,255,.02);
}

.pill{
  display:inline-flex;
  padding:10px 14px;
  border-radius:999px;
  border:1px solid rgba(245,244,255,.20);
  color: var(--muted);
  font-size:13px;
}

.footer{
  padding: 26px 22px;
  text-align:center;
  color: rgba(245,244,255,.55);
  font-size:12px;
  border-top: 1px solid rgba(245,244,255,.08);
}

/* Responsive */
@media (max-width: 860px){
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .grid{
    grid-template-columns: 1fr;
  }
  .card img{
    height: 260px;
  }
}