:root{
  --card:#0e1630;
  --text:#ffffff;
  --muted:#cfd6ff;
  --btn:#1d2a5c;
  --btn2:#2e58ff;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #0a0f22;
  color: var(--text);
}

.wrap{
  max-width: 100%;
  margin: 0 auto;
  padding: 18px 14px 40px;
}

h1{
  margin: 10px 0 14px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .2px;
}

.game-shell{
  position: relative;
  width: 100%;
}

canvas{
  display:block;
  width: 100%;
  height: auto;
  background: blue;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.overlay{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:16px;
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(2px);
}

.overlay.hidden{ display:none; }

.card{
  width: min(520px, 100%);
  background: var(--card);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 18px 16px;
}

.title{
  font-size: 20px;
  font-weight: 900;
  margin: 0 0 8px;
}

.body{
  font-size: 14px;
  line-height: 1.4;
  color: var(--muted);
  margin-bottom: 14px;
}

.actions{
  display:flex;
  gap:10px;
  flex-wrap: wrap;
}

.btn{
  border: 1px solid rgba(255,255,255,.16);
  background: var(--btn);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 700;
  cursor:pointer;
  user-select:none;
}

.btn.primary{
  background: var(--btn2);
  border-color: rgba(255,255,255,.18);
}

.btn:active{
  transform: translateY(1px);
}

.hint{
  margin-top: 12px;
  font-size: 12px;
  color: rgba(255,255,255,.75);
}

.controls{
  width: 100%;
  margin: 12px auto 0;
  display:flex;
  flex-direction:column;
  gap:8px;
  align-items:center;
}

.controls .row{
  display:flex;
  gap:10px;
  justify-content:center;
}

.controls .row.small{
  font-size:12px;
  color: rgba(255,255,255,.8);
}

.dpad{
  width:56px;
  height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
}

.footer{
  opacity:.8;
  font-size: 12px;
  margin-top: 12px;
  text-align:center;
}

canvas {
    max-width: 100%;
    height: auto;
}