body {
    margin: 0;
    padding: 0;
    font-family: 'Chewy', cursive;
    background: linear-gradient(135deg, #A8DCEC, #E0F2F7, #FFE0B2);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #333;
    text-align: center;
}
.game-container {
    background: rgba(255,255,255,0.95);
    border-radius: 25px;
    padding: 20px;
    max-width: 900px;
    width: 95%;
    border: 8px solid #FF8A80;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.current-problem-display {
    font-size: 3em;
    margin: 15px 0;
}
.answer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 10px;
    width: 100%;
}
.answer-button {
    border: 4px solid;
    border-radius: 12px;
    font-size: 1.8em;
    font-weight: bold;
    color: #fff;
    padding: 12px 0;
    cursor: pointer;
    font-family: 'Chewy', cursive;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80px;
}
.color-1 { background: #FFECB3; color: #6A5ACD; }
.color-2 { background: #FFC0CB; color: #C71585; }
.color-3 { background: #D4EDDA; color: #4CAF50; }
.color-4 { background: #B2EBF2; color: #1E90FF; }
.color-5 { background: #E1BEE7; color: #8A2BE2; }
.color-6 { background: #FFAB91; color: #B22222; }
.counters {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: center;
    margin: 5px 0;
}
.counter-dot {
    width: 16px;
    height: 16px;
    background: #ffcc80;
    border-radius: 50%;
    border: 1px solid #f57c00;
}
#visualHelpers {
    margin-bottom: 10px;
}
#numberLine {
    width: 100%;
    background: #fff8e1;
    border-radius: 8px;
    margin-top: 6px;
}