:root{
  --bg: #0b0e17;
  --bg2: #12172a;
  --panel: #171d33;
  --panel-border: #2a3358;
  --text: #e8ecff;
  --text-dim: #9aa3c7;
  --accent: #7c5cff;
  --accent2: #33e0c8;
  --warn: #ff5d7a;
  --gold: #ffd166;
  --ghost: #b39cff;
  --radius: 16px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

*{box-sizing:border-box; -webkit-tap-highlight-color: transparent;}
html,body{height:100%; margin:0; overscroll-behavior:none;}
body{
  background: radial-gradient(1200px 800px at 50% -10%, #1c2444 0%, var(--bg) 60%);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  user-select:none;
  touch-action: none;
}

#app{position:fixed; inset:0; display:flex; flex-direction:column;}

#game-canvas{
  flex:1;
  width:100%;
  min-height:0;
  min-width:0;
  display:block;
  touch-action:none;
  background: transparent;
}

#hud{
  position:absolute;
  top: calc(var(--safe-top) + 8px);
  left:8px; right:8px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  z-index:5;
  pointer-events:none;
}
#hud > *{pointer-events:auto;}
#hud.hidden{display:none;}

.hud-center{
  background: rgba(23,29,51,.85);
  backdrop-filter: blur(6px);
  border:1px solid var(--panel-border);
  border-radius: 12px;
  padding:6px 16px;
  text-align:center;
  min-width:140px;
}
#hud-title{font-weight:700; font-size:14px;}
#hud-limit{font-size:12px; color:var(--accent2); font-variant-numeric: tabular-nums;}

.hud-right{display:flex; align-items:center; gap:8px;}

.icon-btn{
  width:42px; height:42px;
  border-radius:50%;
  border:1px solid var(--panel-border);
  background: rgba(23,29,51,.85);
  color:var(--text);
  font-size:18px;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  position:relative;
}
.icon-btn:active{transform: scale(.92);}
.hint-btn span{
  position:absolute; bottom:-4px; right:-4px;
  background:var(--gold); color:#3a2a00;
  font-size:10px; font-weight:800;
  border-radius:8px; padding:1px 4px;
}

.coin-pill{
  background: rgba(23,29,51,.85);
  border:1px solid var(--panel-border);
  border-radius: 20px;
  padding:6px 12px;
  font-weight:700;
  font-size:13px;
  display:flex; align-items:center; gap:4px;
}
.coin-pill.big{font-size:18px; padding:8px 18px; width:fit-content;}

.toast{
  position:absolute; left:50%; transform:translateX(-50%);
  top: calc(var(--safe-top) + 64px);
  background: rgba(124,92,255,.15);
  border:1px solid var(--accent);
  color:var(--text);
  padding:8px 16px;
  border-radius:12px;
  font-size:13px;
  z-index:6;
  pointer-events:none;
  max-width:80vw;
  text-align:center;
}
.toast.hidden{display:none;}
.toast-msg{ border-color: var(--accent2); background: rgba(51,224,200,.12); }

#overlay-root{position:absolute; inset:0; z-index:10; pointer-events:none;}
.screen{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  padding:20px calc(16px + env(safe-area-inset-right, 0px)) calc(20px + var(--safe-bottom)) calc(16px + env(safe-area-inset-left, 0px));
  background: rgba(6,8,16,.6);
  backdrop-filter: blur(3px);
  pointer-events:auto;
  animation: fadeIn .15s ease-out;
}
.screen.hidden{display:none;}

@keyframes fadeIn{from{opacity:0} to{opacity:1}}

.card{
  background: linear-gradient(180deg, var(--panel), var(--bg2));
  border:1px solid var(--panel-border);
  border-radius: var(--radius);
  padding:28px 26px;
  max-width:420px;
  width:100%;
  text-align:center;
  box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 0 1px rgba(124,92,255,.05) inset;
}
.wide-card{max-width:640px; max-height: 86vh; overflow-y:auto;}

.ghost-logo{font-size:56px; filter: drop-shadow(0 0 18px rgba(179,156,255,.7)); animation: floaty 3s ease-in-out infinite;}
@keyframes floaty{0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)}}

h1{margin:6px 0 2px; font-size:28px; letter-spacing:.5px;}
h2{margin:4px 0 12px;}
.tagline{color:var(--text-dim); margin:0 0 20px; font-size:14px;}

.menu-actions{display:flex; flex-direction:column; gap:10px; margin-top:8px;}
.btn{
  background: var(--panel);
  border:1px solid var(--panel-border);
  color:var(--text);
  padding:14px 18px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
}
.btn:active{transform: scale(.97);}
.btn-primary{
  background: linear-gradient(135deg, var(--accent), #5a3fe0);
  border-color: transparent;
  box-shadow: 0 6px 18px rgba(124,92,255,.35);
}
.btn-ad{
  background: linear-gradient(135deg, var(--gold), #e0a83f);
  color:#3a2a00;
  border-color:transparent;
}
.menu-footer{margin-top:20px; display:flex; justify-content:center;}

.card-head{display:flex; align-items:center; gap:10px; margin-bottom:14px; position:relative;}
.card-head h2{flex:1; margin:0;}
.btn-back{
  background:none; border:1px solid var(--panel-border); color:var(--text);
  width:36px; height:36px; border-radius:50%; font-size:18px; cursor:pointer;
}
.btn-small{
  background:var(--panel); border:1px solid var(--panel-border); color:var(--text);
  padding:8px 14px; border-radius:10px; font-size:13px; font-weight:600; cursor:pointer;
}
.btn-primary-small{ background: linear-gradient(135deg, var(--accent), #5a3fe0); border-color:transparent; }

.phase-tabs{display:flex; gap:6px; margin-bottom:14px; flex-wrap:wrap; justify-content:center;}
.phase-tab{
  background:var(--panel); border:1px solid var(--panel-border); color:var(--text-dim);
  padding:8px 14px; border-radius:20px; font-size:13px; font-weight:700; cursor:pointer;
}
.phase-tab.active{background:var(--accent); color:#fff; border-color:transparent;}

.level-grid{display:grid; grid-template-columns:repeat(4, 1fr); gap:10px;}
.level-btn{
  aspect-ratio:1; border-radius:12px; border:1px solid var(--panel-border);
  background:var(--panel); color:var(--text); font-weight:800; font-size:16px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px;
  cursor:pointer; position:relative;
}
.level-btn .stars{font-size:9px; letter-spacing:1px;}
.level-btn.locked{opacity:.4; cursor:not-allowed;}
.level-btn.locked::after{content:"🔒"; position:absolute; font-size:16px;}
.level-btn.locked span{display:none;}
.level-btn.done{border-color: var(--accent2);}

.big-emoji{font-size:48px; margin-bottom:6px;}
.stars{font-size:26px; letter-spacing:6px; margin:4px 0;}
.coin-earned{color:var(--gold); font-weight:800; margin-bottom:8px;}

.ad-card{max-width:340px;}
.ad-badge{
  display:inline-block; background:var(--warn); color:#3a0010; font-weight:800; font-size:10px;
  padding:3px 10px; border-radius:8px; letter-spacing:1px; margin-bottom:8px;
}
.ad-progress{background:var(--bg2); border-radius:8px; height:8px; overflow:hidden; margin:14px 0 12px; border:1px solid var(--panel-border);}
.ad-progress-bar{height:100%; width:0%; background:linear-gradient(90deg, var(--accent2), var(--accent)); transition:width .1s linear;}

.shop-grid{display:flex; flex-direction:column; gap:12px; margin-bottom:10px;}
.shop-item{background:var(--bg2); border:1px solid var(--panel-border); border-radius:12px; padding:14px; text-align:left; display:grid; grid-template-columns:auto 1fr auto; gap:4px 12px; align-items:center;}
.shop-icon{font-size:26px; grid-row:span 2;}
.shop-name{font-weight:700; font-size:14px;}
.shop-desc{grid-column:2; color:var(--text-dim); font-size:12px;}
.shop-item .btn{grid-row:span 2; padding:10px 14px; font-size:13px; white-space:nowrap;}
.fine-print{font-size:10px; color:var(--text-dim); margin-top:6px;}

.editor-card{text-align:left;}
.editor-palette{display:flex; flex-wrap:wrap; gap:6px; margin-bottom:10px;}
.editor-tool{
  background:var(--panel); border:1px solid var(--panel-border); color:var(--text);
  padding:8px 10px; border-radius:10px; font-size:12px; cursor:pointer; font-weight:600;
}
.editor-tool.active{background:var(--accent); border-color:transparent;}
.editor-hint{font-size:11px; color:var(--text-dim); margin-bottom:10px;}
.editor-grid{display:inline-grid; gap:3px; margin:0 auto 12px; padding:8px; background:var(--bg2); border-radius:10px; border:1px solid var(--panel-border); max-width:100%; overflow:auto;}
.editor-cell{
  width:34px; height:34px; border-radius:6px; border:1px solid var(--panel-border);
  background:#1a2140; display:flex; align-items:center; justify-content:center; font-size:16px; cursor:pointer;
}
.editor-cell[data-type="wall"]{background:#0d1122;}
.editor-cell[data-type="fragile"]{background:#3a2b1d;}
.editor-cell[data-type="pad"]{background:#1a2140; box-shadow: inset 0 0 0 2px var(--accent2);}
.editor-cell[data-type="block"]{background:#2a3568;}
.editor-cell[data-type="ghost"]{background:#3a2f66;}
.editor-actions{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:12px;}
.editor-saved-list{font-size:12px; color:var(--text-dim); display:flex; flex-direction:column; gap:6px;}
.editor-saved-item{display:flex; justify-content:space-between; align-items:center; background:var(--bg2); border:1px solid var(--panel-border); border-radius:8px; padding:6px 10px;}

@media (max-width:380px){
  .level-grid{grid-template-columns:repeat(3,1fr);}
  .card{padding:22px 18px;}
}