:root{
  --bg:#0b1220;
  --panel:rgba(255,255,255,.06);
  --panel-brd:rgba(255,255,255,.18);
  --text:#e8edf5;
  --muted:#b8c1d9;
  --link:#dbeafe;
  --shadow:rgba(0,0,0,.35);
  --glass-bg:rgba(255,255,255,.10);
  --glass-bg-hover:rgba(255,255,255,.16);
  --glass-brd:rgba(255,255,255,.28);
  --glass-brd-hover:rgba(255,255,255,.38);
}

/* Global foundation */
*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;
  color:var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 15% -15%, rgba(255,255,255,.050), transparent 55%),
    radial-gradient(1400px 650px at 85% -20%, rgba(255,255,255,.040), transparent 60%),
    radial-gradient(900px 600px at -10% 120%, rgba(255,255,255,.035), transparent 55%),
    radial-gradient(1100px 700px at 110% 120%, rgba(255,255,255,.030), transparent 55%);
  background-repeat:no-repeat;
  background-attachment: fixed, fixed, fixed, fixed;
  background-size: 120% 120%, 140% 140%, 120% 120%, 140% 140%;
  background-position: 0% 0%, 100% 0%, 0% 100%, 100% 100%;
  animation: bgDrift 28s ease-in-out infinite alternate;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
@keyframes bgDrift{
  0%   { background-position: 0% 0%, 100% 0%, 0% 100%, 100% 100%; }
  100% { background-position: 10% 5%, 90% 8%, 4% 95%, 96% 92%; }
}

/* Panels */
.panel{
  background:var(--panel);
  border:1px solid var(--panel-brd);
  border-radius:12px;
}

/* Glass buttons */
a.btn, button.btn, .glass-btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.4rem;
  color:#fff; text-decoration:none; font-weight:600;
  background:var(--glass-bg);
  border:1px solid var(--glass-brd);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  padding:.55rem .9rem; border-radius:.65rem;
  transition: background .12s ease, border-color .12s ease, transform .06s ease, box-shadow .12s ease;
  box-shadow: 0 6px 18px var(--shadow);
}
a.btn:hover, button.btn:hover, .glass-btn:hover{ background:var(--glass-bg-hover); border-color:var(--glass-brd-hover) }
a.btn:active, button.btn:active, .glass-btn:active{ transform: translateY(1px) }

/* Sticky glass nav (auto-injected) */
.glass-nav{
  position:sticky; top:0; z-index:100;
  display:flex; justify-content:space-between; align-items:center;
  padding:.8rem 1rem;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-bottom:1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.glass-nav .left, .glass-nav .right{ display:flex; gap:.6rem; align-items:center }
.glass-nav a.btn{ box-shadow:none }