:root{
  --bg:#0b1020;
  --fg:#eaf0ff;
  --muted:#9fb0d9;
  --glass:rgba(255,255,255,.08);
  --stroke:rgba(255,255,255,.2);
  --a:#8b5cf6;
  --b:#22d3ee;
  --ok:#34d399;
  --danger:#fb7185;
}
:root.light{
  --bg:#f6f8ff;
  --fg:#1a1f33;
  --muted:#50608a;
  --glass:rgba(255,255,255,.75);
  --stroke:rgba(40,50,80,.2);
  --a:#6d28d9;
  --b:#0284c7;
  --ok:#059669;
  --danger:#e11d48;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 80% -10%, #2a1f70 0%, transparent 55%), var(--bg);
  color:var(--fg); min-height:100vh; overflow-x:hidden;
}
#stars{position:fixed;inset:0;z-index:-1;opacity:.45}
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:1rem 1.2rem;max-width:1100px;margin:0 auto;
}
.brand{font-weight:900;letter-spacing:.06em}
.brand .dot{color:var(--b)}
nav{display:flex;gap:.6rem}
button{font:inherit}
.ghost{
  border:1px solid var(--stroke); background:transparent; color:var(--fg);
  padding:.5rem .8rem; border-radius:10px; cursor:pointer;
}
.wrap{max-width:1100px;margin:0 auto;padding:0 1.2rem 2rem}
.glass{
  background:var(--glass); border:1px solid var(--stroke);
  backdrop-filter: blur(8px); border-radius:18px;
}
.hero{padding:1.2rem;margin-bottom:1rem}
.kicker{color:var(--muted);margin:.1rem 0 .5rem}
h1{margin:.2rem 0 1rem;line-height:1.1}
h1 span{
  background:linear-gradient(90deg,var(--a),var(--b));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cta{display:flex;gap:.6rem;flex-wrap:wrap}
#procedureBtn,#oracleBtn,#startGame{
  border:0;border-radius:12px;padding:.7rem 1rem;cursor:pointer;
  color:#fff;background:linear-gradient(135deg,var(--a),var(--b));font-weight:700;
}
#oracleBtn.alt{background:linear-gradient(135deg,#0ea5e9,#14b8a6)}
#status{color:var(--ok);min-height:1.3em}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}
.card{padding:1rem}
.terminal{
  background:#05070f;border:1px solid #2a3355;border-radius:12px;
  min-height:160px;max-height:220px;overflow:auto;padding:.8rem;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9rem;
}
.prompt{color:#93c5fd}
#termForm{display:flex;gap:.5rem;margin-top:.6rem;align-items:center}
#termInput{
  flex:1;border:1px solid var(--stroke);background:transparent;color:var(--fg);
  border-radius:10px;padding:.55rem .7rem;
}
.gameBox{
  position:relative;height:220px;border:1px dashed var(--stroke);
  border-radius:12px;padding:.6rem;overflow:hidden
}
#score,#timer{font-weight:700;margin:.2rem 0}
#target{
  position:absolute;left:50%;top:55%;transform:translate(-50%,-50%);
  border:0;background:transparent;font-size:2rem;cursor:pointer;display:none;
}
footer{max-width:1100px;margin:0 auto;padding:1rem 1.2rem 2rem;color:var(--muted)}
#toast{
  position:fixed;left:50%;bottom:18px;transform:translateX(-50%);
  background:#111827;color:#fff;padding:.6rem .9rem;border-radius:10px;
  border:1px solid #374151;opacity:0;pointer-events:none;transition:.25s;
}
#toast.show{opacity:1}
.spin *{animation:spin 1.2s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
}