:root{
  --bg-1: #0b1220;
  --bg-2: #071227;
  --card-glass: rgba(255,255,255,0.04);
  --muted: #9fb0c9;
  --glass-border: rgba(255,255,255,0.06);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color:#e8f0fb;
  margin:0;
  padding:28px;
  background: radial-gradient(1200px 600px at 10% 10%, rgba(99,102,241,0.12), transparent),
              linear-gradient(180deg,var(--bg-2), var(--bg-1));
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

body > .page-wrap{flex:1}

header{max-width:1100px;margin:0 auto 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
header h1{margin:0;font-weight:700;letter-spacing:.4px}
header p{margin:0;color:var(--muted);font-size:.95rem}

.progress-badge{
  padding:8px 16px;
  border-radius:20px;
  background:linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.15));
  border:1px solid rgba(255,255,255,0.1);
  color:#e8f0fb;
  font-weight:600;
  font-size:0.9rem;
  box-shadow:0 4px 12px rgba(2,6,23,0.3);
  backdrop-filter:blur(10px);
}

#game{display:flex;gap:20px;max-width:1100px;margin:0 auto}
#palette, #combine{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  padding:20px;border-radius:14px;flex:1;box-shadow:0 6px 18px rgba(2,6,23,0.6);
  border:1px solid var(--glass-border);
}

.grid{display:flex;flex-wrap:wrap;gap:12px}
.element{
  width:96px;height:96px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#ffffff;font-weight:700;cursor:grab;user-select:none;
  box-shadow:0 6px 16px rgba(2,6,23,0.45);transition:transform .14s ease, box-shadow .14s ease, opacity .14s ease;
  transform-origin:center center;padding:8px;text-align:center;font-size:.95rem;
  text-shadow:0 2px 4px rgba(0,0,0,0.3);
}
.element:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 12px 28px rgba(2,6,23,0.55)}
.element.dragging{opacity:.6}

#dropzone{min-height:160px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);padding:14px;gap:12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.015), transparent);
  border:2px dashed var(--glass-border);}
#dropzone.active{border-color:rgba(255,255,255,0.14);box-shadow:0 8px 30px rgba(8,12,20,0.6)}

#stack{display:flex;gap:10px;margin-top:8px}
#log{margin-top:12px;color:var(--muted);font-size:.95rem;min-height:1.2rem}
.chip{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.03);display:inline-flex;align-items:center;gap:8px}

.result{margin-top:12px;padding:12px;border-radius:12px;background:linear-gradient(90deg,rgba(255,255,255,0.03),rgba(255,255,255,0.02));box-shadow:0 8px 24px rgba(2,6,23,0.45);display:flex;align-items:center;gap:12px}
.result .swatch{width:36px;height:36px;border-radius:9px;box-shadow:inset 0 -6px 12px rgba(0,0,0,0.18)}

.pulse{animation:pop .48s cubic-bezier(.2,.9,.2,1)}
@keyframes pop{0%{transform:scale(.8);opacity:0}60%{transform:scale(1.06);opacity:1}100%{transform:scale(1);opacity:1}}

.badge{font-size:.8rem;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,0.04);color:var(--muted)}

.components{display:flex;gap:6px;align-items:center;position:absolute;top:8px;left:8px}
.comp-circle{width:18px;height:18px;border-radius:6px;box-shadow:0 6px 12px rgba(2,6,23,0.45);border:2px solid rgba(255,255,255,0.06)}
.element{position:relative}
.elem-label{position:absolute;bottom:8px;left:8px;right:8px;text-align:center;font-size:.78rem;color:rgba(255,255,255,0.95);font-weight:700;text-shadow:0 2px 4px rgba(0,0,0,0.4)}

@media(max-width:860px){#game{flex-direction:column}}

/* Page-level centering for the game */
#page-wrap{min-height:calc(100vh - 140px);display:flex;align-items:center;justify-content:center;padding:28px}
#game{max-width:1000px;width:100%;display:flex;gap:28px}

/* ensure description stacks above the game and is centered */
.page-wrap{min-height:calc(100vh - 140px);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px}
#game{max-width:1000px;width:100%;display:flex;gap:28px}

/* Home button top-left */
.home-btn{position:fixed;left:18px;top:18px;z-index:1200;padding:8px 12px;border-radius:10px;background:rgba(255,255,255,0.04);color:#fff;text-decoration:none;font-weight:600;border:1px solid rgba(255,255,255,0.06);box-shadow:0 8px 20px rgba(2,6,23,0.55)}
.home-btn:hover{transform:translateY(-2px)}

/* Slightly larger dropzone & palette for nicer layout */
#palette{flex:0 0 360px}
#combine{flex:1;min-width:420px}
#dropzone{min-height:220px;padding:18px;font-size:1.02rem}
.elem-label{color:rgba(11,18,34,0.9);font-weight:700}

/* Game description under the main area */
.game-desc{max-width:900px;margin:0 auto 18px;color:var(--muted);text-align:center;font-size:1rem;padding:8px 12px}