:root{
  --bg0:#050712;
  --bg1:#060a1f;
  --neon:#69f5ff;
  --neon2:#b46bff;
  --danger:#ff3b7a;
  --ok:#2bff88;
  --text:#eaf6ff;
  --muted:#9ab5c7;
  --glass: rgba(255,255,255,.08);
  --glass2: rgba(255,255,255,.14);
  --shadow: 0 20px 70px rgba(0,0,0,.55);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  overflow:hidden;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color:var(--text);
  background:
    radial-gradient(1200px 900px at 20% 10%, rgba(105,245,255,.12), transparent 60%),
    radial-gradient(900px 700px at 80% 20%, rgba(180,107,255,.10), transparent 60%),
    radial-gradient(1200px 900px at 50% 90%, rgba(255,59,122,.06), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

#game{
  position:fixed;
  inset:0;
  width:100vw;
  height:100vh;
  display:block;
}

#hud{
  position:fixed;
  left:16px;
  right:16px;
  top:14px;
  display:flex;
  gap:12px;
  justify-content:space-between;
  align-items:flex-start;
  z-index:10;
  pointer-events:none;
}

.hud-left .title{
  font-weight:900;
  letter-spacing:.08em;
  font-size:14px;
  opacity:.95;
  text-shadow: 0 0 18px rgba(105,245,255,.35);
}
.hud-left .sub{
  margin-top:6px;
  font-size:12px;
  color:var(--muted);
  opacity:.95;
}

.hud-right{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.pill{
  pointer-events:none;
  padding:10px 12px;
  border-radius:999px;
  background:linear-gradient(180deg, var(--glass2), var(--glass));
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 40px rgba(0,0,0,.35);
  font-size:12px;
}
.pill span{font-weight:800}

#overlay{
  position:fixed;
  inset:0;
  display:grid;
  place-items:center;
  z-index:30;
  background: radial-gradient(800px 600px at 50% 40%, rgba(105,245,255,.10), rgba(0,0,0,.65));
  backdrop-filter: blur(8px);
}
#overlay.show{display:grid}
#overlay:not(.show){display:none}

.card{
  width:min(520px, 92vw);
  border-radius:22px;
  padding:22px 22px 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.06));
  border:1px solid rgba(255,255,255,.14);
  box-shadow: var(--shadow);
  text-align:center;
  position:relative;
  overflow:hidden;
}
.card::before{
  content:"";
  position:absolute; inset:-2px;
  background:
    radial-gradient(700px 120px at 20% 0%, rgba(105,245,255,.35), transparent 60%),
    radial-gradient(700px 120px at 80% 0%, rgba(180,107,255,.32), transparent 60%);
  opacity:.55;
  pointer-events:none;
}

.big{font-size:48px; margin-top:4px}
h1{
  margin:10px 0 6px;
  font-size:26px;
  letter-spacing:.02em;
}
p{
  margin:0 auto 16px;
  color:var(--muted);
  line-height:1.35;
  max-width:42ch;
}

.controls{
  display:flex;
  gap:10px;
  justify-content:center;
  margin:10px 0 8px;
}

button{
  border:0;
  border-radius:14px;
  padding:12px 16px;
  font-weight:900;
  letter-spacing:.02em;
  color:#07101b;
  background: linear-gradient(90deg, var(--neon), var(--neon2));
  box-shadow: 0 12px 40px rgba(105,245,255,.18);
  cursor:pointer;
  transform: translateY(0);
  transition: transform .12s ease, filter .12s ease;
}
button:hover{transform: translateY(-1px); filter:brightness(1.05)}
button:active{transform: translateY(1px); filter:brightness(.98)}

button.ghost{
  background: transparent;
  color:var(--text);
  border:1px solid rgba(255,255,255,.18);
  box-shadow:none;
}

.how{
  margin-top:12px;
  text-align:left;
  background: rgba(0,0,0,.25);
  border:1px solid rgba(255,255,255,.12);
  border-radius:16px;
  padding:12px 14px;
  color:var(--muted);
}
.how ul{margin:0; padding-left:18px}
.how li{margin:8px 0}
.hidden{display:none}

.footer{
  margin-top:10px;
  font-size:12px;
  color:rgba(234,246,255,.72);
  opacity:.9;
}

.toast{
  position:fixed;
  left:50%;
  bottom:18px;
  transform: translateX(-50%);
  z-index:40;
  padding:10px 12px;
  border-radius:999px;
  background: rgba(0,0,0,.55);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(10px);
  color:rgba(234,246,255,.85);
  font-size:12px;
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
}

/* Cockpit HUD at bottom (first‑person overlay) */
#cockpitHud{
  position:fixed;
  left:0;
  right:0;
  bottom:10px;
  display:flex;
  justify-content:center;
  pointer-events:none;
  z-index:20;
}
.cockpit-glass{
  width:min(580px, 96vw);
  padding:10px 14px 12px;
  border-radius:18px;
  background: linear-gradient(180deg, rgba(7,12,26,.92), rgba(3,5,15,.96));
  border:1px solid rgba(255,255,255,.18);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.cockpit-row{
  display:flex;
  align-items:center;
  gap:16px;
}
.meter{
  flex:1;
}
.meter .label{
  font-size:10px;
  letter-spacing:.14em;
  font-weight:700;
  color:var(--muted);
  margin-bottom:4px;
}
.meter .bar{
  position:relative;
  height:10px;
  border-radius:999px;
  background: rgba(255,255,255,.05);
  overflow:hidden;
}
.meter .fill{
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:0%;
  border-radius:999px;
  background: linear-gradient(90deg, var(--ok), var(--neon));
  box-shadow: 0 0 18px rgba(105,245,255,.45);
  transition: width .08s linear;
}
.meter .fill.danger{
  background: linear-gradient(90deg, rgba(255,190,92,1), var(--danger));
  box-shadow: 0 0 18px rgba(255,59,122,.5);
}
.system{
  font-size:11px;
  letter-spacing:.16em;
  font-weight:700;
  color:var(--muted);
  white-space:nowrap;
}
.system span{
  margin-left:6px;
  font-weight:900;
  color:var(--ok);
  text-shadow: 0 0 12px rgba(43,255,136,.7);
}
.system span.offline{
  color:var(--danger);
  text-shadow: 0 0 12px rgba(255,59,122,.7);
}