body {
    background: linear-gradient(135deg, #3b1a7a, #8aa9e8);
    font-family: 'Press Start 2P', cursive;
    overscroll-behavior: none;
    touch-action: manipulation;
}
.card {
    perspective: 1000px;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    position: relative;
}
.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}
.card.flipped .card-inner {
    transform: rotateY(180deg);
}
.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}
.card-front {
    background: #ffffff;
    transform: rotateY(180deg);
    border: 2px solid #d1d5db;
    border-radius: 6px;
}
.card-front img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 4px;
}
.card-back {
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><rect width="100" height="100" fill="%233a1c71"/><path d="M50 20 L65 50 L50 80 L35 50 Z" fill="%23d76d77" stroke="%23fff" stroke-width="2"/><circle cx="50" cy="50" r="10" fill="%23ffafbd"/></svg>') center/cover;
    border-radius: 6px;
}
.glow {
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.7), 0 0 16px rgba(255, 255, 255, 0.5);
}
.button-glow:hover {
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.9), 0 0 24px rgba(255, 255, 255, 0.7);
}
.pixel-font {
    font-family: 'Press Start 2P', cursive;
}
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
}
.modal-content {
    transition: transform 0.3s ease;
}
.modal-content.show {
    transform: scale(1.05);
}
.countdown {
    position: absolute;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 40;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 8px rgba(255, 255, 255, 0.7), 0 0 16px rgba(255, 255, 255, 0.5); }
    50% { box-shadow: 0 0 12px rgba(255, 255, 255, 0.9), 0 0 24px rgba(255, 255, 255, 0.7); }
    100% { box-shadow: 0 0 8px rgba(255, 255, 255, 0.7), 0 0 16px rgba(255, 255, 255, 0.5); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.developer-name {
    font-family: 'Montserrat', sans-serif;
    animation: fadeIn 0.6s ease-in-out;
    text-shadow: 0 0 2px rgba(255, 255, 255, 0.5);
    transition: transform 0.2s, background-color 0.2s;
}
.developer-name:hover {
    transform: scale(1.05);
    background-color: rgba(17, 24, 39, 0.5);
}
.mute-button {
    position: absolute;
    top: 3px;
    right: 3px;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 60;
}
@media (min-width: 640px) {
    .countdown {
        top: -15%;
    }
    .mute-button {
        top: 4px;
        right: 4px;
        width: 2.25rem;
        height: 2.25rem;
    }
    }
    @media (max-width: 640px) {
    .card {
        height: 10vw !important;
        min-height: 80px;
    }
    .developer-name {
        max-width: 85%;
    }
    .level-button {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
    }
}
@media (max-width: 400px) {
    .stats {
        flex-direction: column;
        align-items: center;
        gap: 0.25rem;
    }
    .mute-button {
        top: 2px;
        right: 2px;
        width: 1.75rem;
        height: 1.75rem;
    }
    .developer-name {
        font-size: 0.875rem;
        padding: 0.25rem 0.5rem;
    }
    .card {
        min-height: 64px;
        height: 9vw !important;
    }
    .countdown {
        top: -20%;
    }
}
@media (max-width: 360px) {
    .developer-name {
        font-size: 0.875rem;
        padding: 0.125rem 0.25rem;
    }
    .card {
        min-height: 56px;
        height: 8vw !important;
    }
}