/* SPIELE-SHELL Basis-Stylesheet — generisch für alle LernDigital-Batch-Spiele */
:root{
  --bg:#070a18; --ink:#0c1030; --paper:#e8e3d0; --gold:#ffcf5e;
  --blue:#6fb6ff; --red:#ff5470; --cyan:#38e1ff; --line:#1c2350;
  --dim:#8a93b8; --txt:#e9ecff;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overflow:hidden}
body{
  background:var(--bg); color:var(--txt);
  font-family:"Segoe UI",system-ui,-apple-system,sans-serif;
  user-select:none;-webkit-user-select:none;touch-action:none;
}
canvas#game{position:fixed;inset:0;width:100%;height:100%;display:block}

/* ---------- HUD oben ---------- */
#hud{
  position:fixed;top:0;left:0;right:0;z-index:20;
  display:flex;justify-content:space-between;align-items:flex-start;
  padding:10px 12px;gap:10px;pointer-events:none;
}
.hud-cell{display:flex;flex-direction:column;gap:6px;pointer-events:auto}
.hud-right{align-items:flex-end}
.hud-mid{align-items:center}
.btn-row{display:flex;gap:6px}
.btn-row a,.btn-row button{
  width:38px;height:38px;font-size:17px;line-height:1;
  background:rgba(12,16,48,.82);border:1px solid var(--line);
  border-radius:10px;color:var(--txt);cursor:pointer;
  display:flex;align-items:center;justify-content:center;text-decoration:none;
}
.btn-row a:hover,.btn-row button:hover{border-color:var(--cyan)}
#hearts{font-size:19px;letter-spacing:2px;text-shadow:0 2px 6px #000}
#leveltag{font-weight:700;font-size:14px;color:var(--paper);text-shadow:0 2px 6px #000;text-align:center}
#mid-extra{display:flex;align-items:center;gap:8px}
.bar{width:170px;height:10px;border-radius:6px;background:rgba(255,255,255,.08);
  border:1px solid var(--line);overflow:hidden}
.bar>div{height:100%;width:0%;border-radius:6px;background:var(--cyan);transition:width .25s linear}
.barlabel{font-size:12px;color:var(--dim);white-space:nowrap}
#score{font-weight:800;font-size:22px;color:var(--gold);text-shadow:0 2px 8px #000}
#besttag{font-size:12px;color:var(--dim)}

#achToast{
  position:fixed;top:70px;left:50%;transform:translateX(-50%) translateY(-20px);
  z-index:40;background:rgba(12,16,48,.95);border:1px solid var(--gold);
  color:var(--gold);font-weight:700;padding:10px 22px;border-radius:14px;
  opacity:0;transition:opacity .25s,transform .25s;pointer-events:none;
}
#achToast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- Overlay / Screens ---------- */
#overlay{
  position:fixed;inset:0;z-index:30;display:none;
  align-items:center;justify-content:center;
  background:rgba(4,6,18,.78);backdrop-filter:blur(3px);
}
#overlay.show{display:flex}
.panel{
  width:min(560px,94vw);max-height:88vh;overflow:auto;
  background:linear-gradient(180deg,#101538,#0a0e24);
  border:1px solid #2a3568;border-radius:20px;padding:26px 26px 20px;
  text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.6);
}
.panel h1{
  font-family:Georgia,serif;font-size:36px;letter-spacing:3px;
  color:var(--paper);margin-bottom:2px;
  text-shadow:0 0 24px rgba(111,182,255,.45);
}
.panel h2{font-family:Georgia,serif;font-size:26px;color:var(--gold);letter-spacing:2px;margin-bottom:10px}
.panel .sub{color:var(--dim);font-size:13.5px;margin-bottom:14px;line-height:1.5}
.helpbox{
  text-align:left;background:rgba(7,10,24,.6);border:1px solid var(--line);
  border-radius:12px;padding:12px 14px;margin:10px 0 14px;font-size:13px;line-height:1.6;color:#c6cdec;
}
.helpbox b{color:var(--gold)}
.helpbox .k{display:inline-block;background:#1a2350;border-radius:5px;padding:0 7px;
  font-family:monospace;font-size:12px;color:var(--cyan);border:1px solid #2a3568}
.lvlrow{display:flex;gap:10px;justify-content:center;margin:12px 0}
.lvlbtn{
  flex:1;padding:14px 6px;border-radius:14px;cursor:pointer;
  background:rgba(232,227,208,.07);border:1px solid var(--line);color:var(--txt);
  font-weight:700;font-size:13px;line-height:1.35;
}
.lvlbtn small{display:block;color:var(--dim);font-weight:400;font-size:11px;margin-top:3px}
.lvlbtn:hover:not(:disabled){border-color:var(--gold);color:var(--gold)}
.lvlbtn:disabled{opacity:.38;cursor:not-allowed}
.bigbtn{
  display:block;width:100%;margin-top:8px;padding:15px;border:none;border-radius:14px;
  background:linear-gradient(135deg,#ffcf5e,#ffb347);color:#201400;
  font-weight:800;font-size:18px;letter-spacing:1px;cursor:pointer;
}
.bigbtn:active{transform:scale(.98)}
.ghostbtn{
  display:block;width:100%;margin-top:10px;padding:12px;border-radius:14px;cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--dim);font-weight:700;
}
.ghostbtn:hover{border-color:var(--cyan);color:var(--cyan)}
.statline{color:var(--dim);font-size:13px;margin-top:12px;line-height:1.6}
.statline b{color:var(--gold)}

/* ---------- Touch-Steuerung ---------- */
#touchpad{position:fixed;inset:0;z-index:15;display:none;pointer-events:none}
#touchpad.show{display:block}
.tbtn{
  position:absolute;bottom:96px;width:64px;height:64px;border-radius:50%;
  background:rgba(12,16,48,.55);border:1px solid var(--line);
  color:var(--txt);font-size:26px;display:flex;align-items:center;justify-content:center;
  pointer-events:auto;
}
#tL{left:14px} #tR{left:92px} #tJ{right:14px}

@media (max-width:640px){
  .panel{padding:18px 14px}
  .panel h1{font-size:26px}
  .bar{width:110px}
  #score{font-size:18px}
}
@media (max-height:640px){
  .panel{max-height:92vh}
  .helpbox{display:none}
}