/* static/css/core/brainiac.css
   The Brainiac page's own styles, moved out of the page unchanged. */

#brain-game{position:relative;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;background:#0a1628;border-radius:12px;overflow:hidden;user-select:none}
.bg-header{color:#1a3a5c;font-size:0.875rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;padding:8px 0 2px;text-align:center}
.bg-score{color:#6a8fbd;font-size:0.875rem;font-weight:600;letter-spacing:1px;margin-bottom:4px}
#bg-equation{font-size:2rem;font-weight:800;color:#e8f4f8;letter-spacing:2px;padding:16px 0 8px;text-align:center}
.bg-timer-bar{width:calc(100% - 40px);height:4px;background:#1a2a40;border-radius:2px;margin-bottom:12px;overflow:hidden}
#bg-timer-fill{width:100%;height:100%;background:linear-gradient(90deg,#87ceeb,#1a3a5c);border-radius:2px;transition:none}
#bg-timer-fill.bg-animate{transition:width 4s linear}
#bg-answers{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:calc(100% - 40px);flex:1;padding-bottom:16px;align-content:center}
.bg-ans{background:#152238;border:2px solid #1a3a5c;border-radius:10px;font-size:1.3rem;font-weight:700;color:#e8f4f8;cursor:pointer;display:flex;align-items:center;justify-content:center;min-height:56px;transition:all .15s}
.bg-ans:hover{background:#1a3a5c;border-color:#87ceeb}
.bg-ans.bg-correct{background:#1a5c3a;border-color:#4cff4c;color:#4cff4c}
.bg-ans.bg-wrong{background:#5c1a1a;border-color:#ff4444;color:#ff4444}
#brain-game.bg-shake{animation:bg-shake .4s ease}
@keyframes bg-shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}}
#bg-overlay{position:absolute;inset:0;background:rgba(10,22,40,.92);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;border-radius:12px;z-index:2}
#bg-overlay.bg-hidden{display:none}
#bg-overlay-text{color:#fff;font-size:1.1rem;font-weight:800;letter-spacing:2px;text-align:center;line-height:1.4}
#bg-overlay-text.bg-won{color:#87ceeb}
#bg-overlay-text.bg-lost{color:#e04040}
#bg-overlay-btn{padding:8px 24px;border:none;border-radius:6px;font-size:.9rem;font-weight:700;cursor:pointer;text-transform:uppercase;letter-spacing:1px;transition:transform .15s}
#bg-overlay-btn:hover{transform:scale(1.05)}
.bg-btn-restart{background:#1a3a5c;color:#fff}
.bg-btn-claim{background:#87ceeb;color:#0a1628}