body {
    font-family: 'Inter', sans-serif;
    background-color: #f0f2f5;
    color: #1a1a1b;
}

.bg-main {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    background-attachment: fixed;
}

.bg-glass {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.card {
    border: none;
    border-radius: 16px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.highlight {
    border: 3px solid #ffc107 !important;
    background: #fffdf5;
    animation: glow 2s infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 10px rgba(255, 193, 7, 0.2); }
    to { box-shadow: 0 0 20px rgba(255, 193, 7, 0.6); }
}

.history-list {
    max-height: 400px;
    overflow-y: auto;
}

.score-display {
    font-size: 2.5rem;
    color: #2a5298;
}

::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
    border-radius: 10px;
}

#section-stats {
    animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

canvas {
    width: 100% !important;
}