/* Monochrome theme */
:root{
  --bg-900:#080808;
  --bg-700:#101010;
  --fg:#f5f5f5;
  --muted:#9a9a9a;
  --accent:#e5e7eb;
  --glass: rgba(255,255,255,0.03);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, new 'Times New Roman', Times, serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background:var(--bg-900);
  color:var(--fg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow:hidden;
}

/* Background video covers viewport */
.bg-video{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:grayscale(100%) brightness(0.6);
  z-index:0;
}

/* Entrance gate */
.entrance{
  position:fixed;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(180deg, rgb(0, 0, 0), rgb(0, 0, 0));
  z-index:2000;
}
.entrance-inner{
  text-align:center;
  max-width:420px;
  padding:28px;
  border-radius:12px;
  background:var(--glass);
  border:1px solid rgba(255,255,255,0.03);
}
.btn{
  margin-top:12px;
  padding:10px 16px;
  border-radius:10px;
  border:none;
  background:var(--accent);
  color:#060606;
  font-weight:700;
  cursor:pointer;
}

/* Main layout */
.site{
  position:relative;
  z-index:10;
  height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;
  padding:28px;
  gap:18px;
}
.top{
  width:100%;
  max-width:1100px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-top:12px;
}
.brand{letter-spacing:4px;margin:0;font-size:3.1rem}
.icons{display:flex;gap:12px}
.icon-link{display:block;width:48px;height:48px;border-radius:10px;overflow:hidden;border:1px solid rgba(94, 94, 94, 0.784);background:rgba(242, 241, 241, 0.02);display:flex;align-items:center;justify-content:center}
.icon-link img{width:28px;height:28px;object-fit:contain;filter:invert(0%) sepia(0) saturate(0)}

/* Center card (self-positioning) */
.self-positioning{
  min-height:180px;
  width:100%;
  max-width:760px;
  margin: auto;
  padding:20px;
  border-radius:12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  backdrop-filter: blur(6px);
  text-align:center;
  position:relative;
}

/* Responsive */
@media (max-width:700px){
  .icon-link{width:44px;height:44px}
  .icon-link img{width:22px;height:22px}
  .site{padding:16px}
  .entrance-inner{padding:20px}
}