:root{
  --slot: 60px;
  --ui: #2b2440;
  --ui2: #3a3157;
  --accent: #8be36b;
  --gold: #ffd35a;
}
*{ box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html,body{ margin:0; height:100%; overflow:hidden; background:#0d1b2a;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; user-select:none; -webkit-user-select:none; }
#game{ position:fixed; inset:0; }
canvas{ display:block; touch-action:none; }
.hidden{ display:none !important; }

/* ---- HUD ---- */
#hud{ position:fixed; inset:0; pointer-events:none; z-index:10; }
#hud button{ pointer-events:auto; }

#collection{
  position:absolute; top:10px; left:62px;
  background:rgba(20,16,36,.72); color:#fff; font-weight:700; font-size:18px;
  padding:6px 12px; border-radius:12px; letter-spacing:.5px;
}

/* top-left menu (extensible: more screens go in the panel) */
#menu-wrap{ position:absolute; top:8px; left:12px; z-index:20; }
#menu-btn{ font-size:20px; line-height:1; background:rgba(20,16,36,.72); color:#fff;
  border:none; border-radius:12px; padding:8px 11px; cursor:pointer; }
#menu-panel{ margin-top:6px; background:rgba(20,16,36,.92); border-radius:12px;
  padding:8px; display:flex; flex-direction:column; gap:6px; min-width:150px; }
#menu-panel.hidden{ display:none; }
#menu-panel button{ background:rgba(255,255,255,.12); color:#fff; border:none;
  border-radius:9px; padding:10px 12px; font-size:15px; text-align:left; cursor:pointer; }
#menu-panel button:active{ background:rgba(255,255,255,.24); }

/* companion chip (top-center) */
#pet-hud{ position:absolute; top:10px; left:50%; transform:translateX(-50%);
  background:rgba(20,16,36,.72); color:#fff; font-weight:700; font-size:15px;
  padding:6px 12px; border-radius:12px; white-space:nowrap; display:flex; align-items:center; gap:6px; }
#pet-hud:empty{ display:none; }
.pet-face{ font-size:16px; }
.pet-bar{ display:inline-block; width:64px; height:7px; border-radius:5px;
  background:rgba(255,255,255,.18); overflow:hidden; }
.pet-bar>span{ display:block; height:100%; background:linear-gradient(90deg,#7CFC98,#4fae5a); }
/* ability bar — companion helper forms unlock into this row */
#ability-bar{ position:absolute; top:44px; left:50%; transform:translateX(-50%);
  display:flex; gap:8px; align-items:center; }
.abil{ background:rgba(20,16,36,.72); color:#fff; font-weight:800; font-size:15px;
  border:none; border-radius:12px; padding:7px 12px; cursor:pointer; white-space:nowrap; }
.abil:active{ background:rgba(255,255,255,.28); }
.abil.hidden{ display:none; }
#feed-btn{ background:rgba(255,123,208,.85); }
#bridge-btn{ background:rgba(120,180,255,.9); }
#light-btn.lit{ background:rgba(255,214,80,.95); color:#3a2f00; }

/* quest chip (top, under abilities) */
#quest-hud{ position:absolute; top:82px; left:50%; transform:translateX(-50%);
  background:rgba(20,16,36,.82); color:#fff; font-size:15px; font-weight:600;
  padding:7px 14px; border-radius:12px; max-width:86vw; text-align:center; line-height:1.4;
  cursor:pointer; display:flex; align-items:center; gap:7px; }
#quest-hud.hidden{ display:none; }
#quest-hud .lv-ic{ font-size:1.9em; line-height:1; }        /* big symbol for a pre-reader */
#quest-hud .lv-eq{ font-size:1.7em; font-weight:800; letter-spacing:1px; }  /* the math problem, big */
#quest-hud .lv-step{ font-size:.8em; opacity:.65; }          /* tiny step counter */
#quest-hud .lv-say{ font-size:1.25em; opacity:.85; }         /* tap to hear it again */

/* Noom tray — numbers as stackable characters (DragonBox-style) */
#noom-tray{ position:absolute; top:120px; left:50%; transform:translateX(-50%);
  display:flex; align-items:center; gap:10px; padding:9px 14px; border-radius:16px;
  background:rgba(20,16,36,.72); max-width:92vw; flex-wrap:wrap; justify-content:center; }
#noom-tray.hidden{ display:none; }
#noom-tray .n-group{ display:flex; gap:4px; padding:5px; border-radius:12px;
  background:rgba(255,255,255,.06); }
#noom-tray .n-op{ font-size:26px; font-weight:800; color:#ffe14d; }
#noom-tray .n-eq{ font-size:26px; font-weight:800; color:#fff; }
#noom-tray .n-ans{ font-size:30px; font-weight:900; color:#8cff9a; min-width:26px; text-align:center; }
/* a Noom: a round little character with eyes */
#noom-tray .noom{ width:26px; height:26px; border-radius:50%; position:relative;
  box-shadow:inset 0 -3px 0 rgba(0,0,0,.18); transition:transform .12s; }
#noom-tray .noom.filled{ animation:noompop .28s ease; }
#noom-tray .noom.empty{ background:transparent!important; box-shadow:none;
  border:2px dashed rgba(255,255,255,.35); }
#noom-tray .noom::before, #noom-tray .noom::after{ content:''; position:absolute; top:8px;
  width:4px; height:4px; border-radius:50%; background:#1a1a24; }
#noom-tray .noom.empty::before, #noom-tray .noom.empty::after{ display:none; }
#noom-tray .noom::before{ left:6px; } #noom-tray .noom::after{ right:6px; }
@keyframes noompop{ 0%{ transform:scale(.2); } 70%{ transform:scale(1.25); } 100%{ transform:scale(1); } }

/* hotbar */
#hotbar{
  position:absolute; left:50%; bottom:14px; transform:translateX(-50%);
  display:flex; gap:8px; padding:8px; background:rgba(20,16,36,.72);
  border-radius:16px; pointer-events:auto;
}
.slot{
  width:var(--slot); height:var(--slot); border-radius:12px;
  background:var(--ui2); border:3px solid transparent; position:relative;
  display:flex; align-items:center; justify-content:center; font-size:30px;
  cursor:pointer; color:#fff;
}
.slot.sel{ border-color:var(--gold); background:#4a3f6e; box-shadow:0 0 0 2px rgba(255,211,90,.4); }
.slot .cnt{
  position:absolute; right:4px; bottom:2px; font-size:13px; font-weight:800;
  background:rgba(0,0,0,.55); padding:0 5px; border-radius:8px; min-width:16px; text-align:center;
}
.slot .lbl{ position:absolute; left:0; right:0; top:-18px; text-align:center; font-size:11px; color:#cfc; opacity:.85; }

/* touch controls */
.touch-only{ display:none; }
body.touch .touch-only{ display:block; }
#move-pad{ position:absolute; left:12px; bottom:96px; display:flex; gap:12px; }
#jump-pad{ position:absolute; right:12px; bottom:96px; }
.mv, #jump-btn{
  width:72px; height:72px; border-radius:50%; border:none;
  background:rgba(60,50,90,.75); color:#fff; font-size:30px; font-weight:800;
}
.mv:active, #jump-btn:active{ background:rgba(139,227,107,.8); }

/* craft */
#craft-toggle{
  position:absolute; right:14px; top:12px; width:52px; height:52px; border-radius:14px;
  border:none; background:rgba(20,16,36,.72); font-size:26px;
}
#craft-panel{
  position:absolute; right:14px; top:74px; width:250px; max-width:80vw;
  background:var(--ui); color:#fff; border-radius:16px; padding:14px;
  box-shadow:0 12px 40px rgba(0,0,0,.5); pointer-events:auto;
}
.craft-head{ font-weight:800; font-size:16px; margin-bottom:10px; color:var(--gold); }
.recipe{ background:var(--ui2); border-radius:12px; padding:10px; margin-bottom:10px; }
.recipe .r-name{ font-weight:700; font-size:14px; }
.recipe .r-cost{ font-size:13px; opacity:.85; margin:3px 0 8px; }
.recipe button{
  width:100%; border:none; border-radius:10px; padding:8px; font-weight:800;
  background:var(--accent); color:#123; font-size:14px;
}
.recipe button:disabled{ background:#555; color:#aaa; }
.recipe.done button{ background:var(--gold); }
#craft-close{ width:100%; border:none; border-radius:10px; padding:9px; background:#4a3f6e; color:#fff; font-weight:700; }

/* title */
#title{ position:fixed; inset:0; z-index:30; display:flex; align-items:center; justify-content:center;
  background:radial-gradient(circle at 50% 30%, #2a3f66, #0d1b2a); }
#title .card{ text-align:center; color:#fff; padding:28px; }
#title .logo{ font-size:64px; }
#title h1{ margin:6px 0 2px; font-size:40px; letter-spacing:1px; }
#title .tag{ margin:0 0 22px; opacity:.85; font-size:16px; }
#play-btn{
  border:none; border-radius:16px; padding:16px 44px; font-size:22px; font-weight:800;
  background:var(--accent); color:#123; box-shadow:0 8px 0 #4f9e37;
}
#play-btn:active{ transform:translateY(4px); box-shadow:0 4px 0 #4f9e37; }
#title .hint{ margin-top:20px; font-size:13px; opacity:.6; max-width:280px; }

/* toast */
#toast{
  position:fixed; left:50%; top:64px; transform:translateX(-50%) translateY(-12px);
  background:rgba(20,16,36,.92); color:#fff; padding:10px 18px; border-radius:14px;
  font-weight:700; font-size:15px; opacity:0; transition:opacity .25s, transform .25s;
  z-index:40; pointer-events:none; border:1px solid rgba(255,211,90,.4);
}
#toast.show{ opacity:1; transform:translateX(-50%) translateY(0); }