:root{
  --bg: #07110d;
  --bg2:#04110b;
  --panel:#0a1c14;
  --text:#e9fff3;
  --muted: rgba(233,255,243,.72);

  --neon:#23ff74;
  --neon2:#2affc2;
  --line: rgba(35,255,116,.22);

  --shadow: 0 18px 60px rgba(0,0,0,.55);
  --radius: 18px;
  --radius2: 26px;

  --font: "Noto Sans KR", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --fontDisplay: "Orbitron", "Noto Sans KR", system-ui, sans-serif;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  color: var(--text);
  background: radial-gradient(1200px 600px at 70% 20%, rgba(35,255,116,.14), transparent 60%),
              radial-gradient(900px 520px at 20% 70%, rgba(42,255,194,.10), transparent 60%),
              linear-gradient(180deg, var(--bg), var(--bg2));
  overflow-x:hidden;
}

img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
button, input, textarea{
  font: inherit;
  color: inherit;
}

.container{
  width:min(1140px, calc(100% - 40px));
  margin: 0 auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:0;
  padding:10px 14px;
  border-radius:12px;
  background:#000;
  color:#fff;
  z-index:9999;
}
.skip-link:focus{ left:12px; top:12px; outline:2px solid var(--neon); }

.link{
  color: var(--neon);
  text-decoration: underline;
  text-decoration-color: rgba(35,255,116,.45);
  text-underline-offset: 3px;
}
.link:hover{ text-decoration-color: rgba(35,255,116,.85); }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 12px 16px;
  border-radius: 16px;
  border:1px solid rgba(233,255,243,.14);
  background: rgba(255,255,255,.04);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease, background .15s ease;
  cursor:pointer;
  user-select:none;
}
.btn:active{ transform: translateY(1px); }
.btn--lg{ padding: 14px 18px; border-radius: 18px; }
.btn--ghost{
  background: rgba(255,255,255,.03);
  border-color: rgba(35,255,116,.22);
}
.btn--ghost:hover{
  border-color: rgba(35,255,116,.45);
  box-shadow: 0 0 0 1px rgba(35,255,116,.18), 0 0 26px rgba(35,255,116,.12);
}
.btn--neon{
  background: linear-gradient(180deg, rgba(35,255,116,.22), rgba(35,255,116,.10));
  border-color: rgba(35,255,116,.60);
  box-shadow: 0 0 0 1px rgba(35,255,116,.22), 0 0 38px rgba(35,255,116,.16);
}
.btn--neon:hover{
  border-color: rgba(35,255,116,.90);
  box-shadow: 0 0 0 1px rgba(35,255,116,.35), 0 0 56px rgba(35,255,116,.22);
  transform: translateY(-1px);
}

.w-full{ width:100%; }

.badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(35,255,116,.35);
  background: rgba(10,28,20,.55);
  backdrop-filter: blur(10px);
  box-shadow: 0 0 0 1px rgba(35,255,116,.12);
}
.badge__dot{
  width:10px; height:10px; border-radius:50%;
  background: var(--neon);
  box-shadow: 0 0 12px rgba(35,255,116,.75);
}

.muted{ color: var(--muted); }


/* Footer */
.footer{
  border-top: 1px solid rgba(35,255,116,.12);
  background: rgba(0,0,0,.20);
  padding: 26px 0;
}
.footer__inner{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 16px;
}
.footer__logo{
  font-family: var(--fontDisplay);
  letter-spacing: .06em;
  margin-bottom: 8px;
}
.footer__desc{
  color: rgba(233,255,243,.65);
  line-height: 1.6;
  font-size: 13.5px;
}
.footer__info{
  color: rgba(233,255,243,.68);
  line-height: 1.7;
  font-size: 13.5px;
}
.footer__bottom{
  grid-column: 1 / -1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  border-top: 1px solid rgba(35,255,116,.10);
  padding-top: 14px;
  margin-top: 8px;
  color: rgba(233,255,243,.62);
  font-size: 13px;
}

/* Toast */
.toast{
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%) translateY(16px);
  opacity: 0;
  pointer-events: none;
  max-width: min(680px, calc(100% - 24px));
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(35,255,116,.35);
  background: rgba(7,17,13,.72);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow), 0 0 42px rgba(35,255,116,.14);
  transition: opacity .18s ease, transform .18s ease;
}
.toast.is-on{
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* Responsive */
@media (max-width: 980px){
  .nav{ display:none; }
  .mnav-btn{ display:block; }
  .topbar__cta{ display:none; }
  .footer__inner{ grid-template-columns: 1fr; }
}