:root{
  --bg:#0b0f16;
  --card:#121826;
  --text:#e9f0ff;
  --muted:#9fb0d1;
  --accent:#6ae3ff;
  --accent-2:#4ce07a;
  --shadow: 0 10px 25px rgba(0,0,0,.35);
  --radius: 16px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Outfit,system-ui,sans-serif; color:var(--text);
  background:
    radial-gradient(1200px 800px at 10% -10%, #1b2a4a77 0%, transparent 60%),
    radial-gradient(1000px 600px at 110% 10%, #0e46294d 0%, transparent 60%),
    var(--bg);
  display:flex; align-items:stretch; justify-content:center;
}

.wrap{width:min(1100px,95%); margin:22px auto; display:flex; flex-direction:column; gap:16px}
.topbar{display:grid; grid-template-columns:1fr auto; align-items:center; gap:10px}
.topbar h1{margin:0; font-size:clamp(22px,4.2vw,36px)}
.topbar .right{justify-self:end}

.btn{
  display:inline-block;
  background:var(--accent);
  color:#031018;
  font-weight:800;
  border:none;
  border-radius:14px;
  padding:12px 18px;
  cursor:pointer;
  text-decoration:none;
  font-size:15px;
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease, background-position .35s ease;
  box-shadow:0 10px 22px rgba(106,227,255,.35);
  background-size:160% 160%;
}
.btn.primary{ background:linear-gradient(135deg,var(--accent), var(--accent-2)); }
.btn.secondary{ background:#1b2436; color:#fff; box-shadow:inset 0 0 0 1px #2b3a57, var(--shadow) }
.btn:hover{ transform:translateY(-2px) scale(1.02); box-shadow:0 16px 28px rgba(106,227,255,.55); filter:brightness(1.05) }
.btn:active{ transform:translateY(0) scale(.98) }
.btn.big{ padding:14px 24px; font-size:18px; border-radius:16px; }
.btn.pulse{ animation:pulse 1.6s ease-in-out infinite; }
@keyframes pulse{
  0%,100%{ transform:scale(1); box-shadow:0 10px 22px rgba(106,227,255,.35) }
  50%{ transform:scale(1.04); box-shadow:0 18px 34px rgba(106,227,255,.55) }
}

.game-panel{background:linear-gradient(180deg,#111827,#0d1423); border-radius:var(--radius); padding:16px; box-shadow:var(--shadow); outline:1px solid #1e2a44aa}
.hud{display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin:0 0 10px; justify-content:space-between}
.badge{background:#0f1626; border:1px solid #1f2a44; padding:8px 12px; border-radius:12px; color:#cfe2ff; font-weight:700}
.controls{display:flex; gap:10px; align-items:center}

#game{
  display:block; width:100%; max-width:100%; height:auto;
  background:linear-gradient(#0b0f16,#0b0f16) padding-box;
  border-radius:12px; border:1px solid #1b2741
}

.foot{opacity:.9; color:var(--muted); text-align:center; margin-bottom:14px}

dialog{border:none; padding:0; background:transparent}
dialog::backdrop{background:rgba(0,0,0,.45)}
.card{background:linear-gradient(180deg,#101727,#0d1423); border-radius:16px; padding:18px; box-shadow:var(--shadow); outline:1px solid #1e2a44aa; color:#e9f0ff; width:min(600px,95vw)}
.card h2{margin:0 0 10px}
.grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(200px,1fr)); gap:10px; margin:10px 0}
label{display:flex; flex-direction:column; gap:6px; font-weight:600}
input[type='text'], select{border-radius:12px; border:1px solid #2a3b60; background:#0f1626; color:#e9f0ff; padding:10px}
input[type='color']{height:40px; padding:0; border-radius:8px; border:1px solid #2a3b60; background:#0f1626}
.row{display:flex; gap:10px; justify-content:flex-end; margin-top:10px}
.muted{color:var(--muted); font-size:13px}

.overlay{position:fixed; inset:0; display:grid; place-items:center; background:rgba(0,0,0,.45)}
.go-card{background:#101727; color:#e9f0ff; border:1px solid #1f2a44; border-radius:16px; padding:18px; box-shadow:var(--shadow); width:min(420px,90vw); text-align:center}
.go-card h3{margin:0 0 6px}