:root{
  --bg:#0b0b0b;
  --panel:#0f1720;
  --accent:#58d68d;
  --muted:#99a1aa;
  --glass: rgba(255,255,255,0.03);
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;color:#ecf0f1}
#game{
  display:block;
  width:100vw;
  height:100vh;
  touch-action: none;
  background: linear-gradient(180deg,#071018 0%, #05111a 100%);
}

/* Menu overlay */
.menu{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events:none;
}
.menu.show{pointer-events:auto}
.menu-inner{
  width:92%;
  max-width:420px;
  background:linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));
  border:1px solid rgba(255,255,255,0.04);
  backdrop-filter: blur(6px);
  padding:22px;
  border-radius:14px;
  text-align:center;
  transform-origin:center;
  animation:pop .45s cubic-bezier(.18,.9,.32,1);
}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}

.logo{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  margin-bottom:12px;
}
.snake-dot{
  width:18px;height:18px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 12px rgba(88,214,141,0.26);
  display:inline-block;
  animation:wiggle 0.9s ease-in-out infinite;
}
@keyframes wiggle{0%{transform:translateX(-4px)}50%{transform:translateX(4px)}100%{transform:translateX(-4px)}}
.title{
  font-weight:700;
  letter-spacing:4px;
  font-size:22px;
  color:#e8f6ee;
}

/* buttons */
.buttons{display:flex;gap:10px;justify-content:center;margin-top:6px;flex-wrap:wrap}
.btn{
  min-width:110px;
  padding:10px 14px;border-radius:10px;border:0;background:var(--glass);color:var(--muted);
  font-weight:600;cursor:pointer;transition:all .18s;
}
.btn.primary{background:linear-gradient(90deg,var(--accent),#2fcf94);color:#04220f;box-shadow:0 6px 18px rgba(44,189,130,0.12)}
.btn:hover{transform:translateY(-4px);filter:brightness(1.03)}
.footer{margin-top:12px;font-size:12px;color:var(--muted)}

/* small HUD */
.hud{
  position:absolute;left:12px;top:12px;color:var(--muted);font-weight:600;background:rgba(255,255,255,0.02);padding:8px 10px;border-radius:8px;border:1px solid rgba(255,255,255,0.02)
}

/* compact controls for touch (visual only) */
.controls {
  position:absolute;
  right:12px;
  bottom:12px;
  display:flex;gap:8px;flex-wrap:wrap;
  z-index: 25;
  pointer-events: none; /* wrapper non-interactive; children override */
}
.touch-btn{
  width:46px;height:46px;border-radius:10px;background:rgba(255,255,255,0.02);display:flex;align-items:center;justify-content:center;color:var(--muted);font-weight:700;border:1px solid rgba(255,255,255,0.02);
  pointer-events: auto;
  touch-action: none;
  -webkit-tap-highlight-color: rgba(0,0,0,0);
}

/* show larger touch pad on small screens */
@media (max-width:600px), (max-height:700px){
  .controls { right:10px; bottom:10px; }
  .touch-btn{ width:52px; height:52px; border-radius:12px; font-size:18px; }
}

/* hide keyboard-only controls on non-touch devices */
@media (hover:none) and (pointer:coarse) {
  .menu-toggle { right: 10px; top: 10px; }
}

/* floating menu toggle button */
.menu-toggle {
  position: absolute;
  right: 12px;
  top: 12px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.04);
  cursor: pointer;
  z-index: 30;
  transition: transform .14s, filter .14s;
}
.menu-toggle:hover { transform: translateY(-3px); filter: brightness(1.06); }

/* responsive tweaks: keep everything inside one screen */
@media (max-height:600px){
  .menu-inner{padding:14px}
  .title{font-size:18px}
  .btn{min-width:88px;padding:8px}
}