/* Base layout */
html, body {
  margin: 0; padding: 0;
  height: 100%; width: 100%;
  overflow: hidden;
  background: #000;
}
#site-frame {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* Overlay galaxie (CSS pur) */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: auto;
  background: radial-gradient(1200px 900px at 50% 60%, rgba(60,70,120,0.15), rgba(0,0,0,0.9) 70%),
              linear-gradient(#05060b, #04050a);
  display: grid;
  place-items: center;
  color: #fff;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  transition: opacity 1.3s ease-out;
  opacity: 1;
}

/* Trois couches d'étoiles animées */
.galaxy {
  position: absolute;
  inset: -20%;
  background-repeat: repeat;
  background-size: 800px 800px;
  opacity: .7;
  filter: drop-shadow(0 0 2px rgba(255,255,255,.3));
}
.galaxy-back   { animation: driftBack 160s linear infinite;  }
.galaxy-mid    { animation: driftMid  120s linear infinite;  opacity: .85; }
.galaxy-front  { animation: driftFront 90s linear infinite;  opacity: 1; }

.galaxy-back {
  background-image:
    radial-gradient(2px 2px at 10% 20%, rgba(255,255,255,.7) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 70% 80%, rgba(255,255,255,.6) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 40% 60%, rgba(255,255,255,.5) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 85% 30%, rgba(255,255,255,.65) 50%, transparent 51%);
}
.galaxy-mid {
  background-image:
    radial-gradient(2px 2px at 25% 35%, rgba(255,255,255,.85) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 55% 15%, rgba(255,255,255,.7) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 75% 55%, rgba(255,255,255,.8) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 10% 75%, rgba(255,255,255,.7) 50%, transparent 51%);
}
.galaxy-front {
  background-image:
    radial-gradient(2.5px 2.5px at 60% 40%, rgba(255,255,255,.95) 50%, transparent 51%),
    radial-gradient(2px 2px at 30% 80%, rgba(255,255,255,.9) 50%, transparent 51%),
    radial-gradient(2px 2px at 90% 20%, rgba(255,255,255,.95) 50%, transparent 51%),
    radial-gradient(2px 2px at 15% 50%, rgba(255,255,255,.9) 50%, transparent 51%);
}

@keyframes driftBack   { from { background-position: 0 0; }   to { background-position: -1200px 600px; } }
@keyframes driftMid    { from { background-position: 0 0; }   to { background-position: -1600px 900px; } }
@keyframes driftFront  { from { background-position: 0 0; }   to { background-position: -2000px 1200px; } }

/* Contenu overlay */
.overlay-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 24px 28px;
  backdrop-filter: blur(1px);
}
.overlay-logo {
  width: clamp(200px, 28vw, 400px);
  height: auto;
  display: block;
  margin: 0 auto 18px;
  filter: drop-shadow(0 4px 18px rgba(255,255,255,.18));
}
.overlay-title {
  font-size: clamp(22px, 3.4vw, 36px);
  letter-spacing: .4px;
  font-weight: 600;
  text-shadow: 0 0 12px rgba(255,255,255,.25);
  animation: glow 2.8s ease-in-out infinite;
}



.overlay-sub {
  margin-top: 8px;
  font-size: clamp(15px, 2.2vw, 20px); /* ← plus grand */
  opacity: 0.85;
}




.overlay-note {
  margin-top: 14px;
  font-size: clamp(13.5px, 2vw, 17px); /* juste un cran au-dessus */
  opacity: 0.78;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}





.darkreader-icon {
  height: 18px;
  width: auto;
  display: inline-block;
}




@keyframes glow {
  0%, 100% { text-shadow: 0 0 8px rgba(255,255,255,.18), 0 0 24px rgba(130,160,255,.18); }
  50%      { text-shadow: 0 0 14px rgba(255,255,255,.32), 0 0 36px rgba(160,190,255,.28); }
}

/* Disparition overlay */
.overlay.hidden { opacity: 0; pointer-events: none; }

/* overlay fade state */
.overlay.closing { opacity: 0; }