* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Arial', sans-serif;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

#background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -1;
}

#container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

#cat-wrapper {
    position: relative;
    width: auto;
    height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

#cat {
    max-width: 65vw;
    max-height: 75vh;
    width: auto;
    height: auto;
    position: relative;
    transition: transform 0.02s linear;
    box-shadow: none;
    border-radius: 0;
    object-fit: contain;
    background: transparent;
    background-color: transparent;
    border: none;
    display: block;
    transform-origin: center center;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    will-change: transform;
    image-rendering: auto;
}

#cat.spinning {
    filter: drop-shadow(0 0 30px rgba(255, 215, 0, 0.8));
}

#cat {
    display: block;
    align-self: center;
}

@media (max-width: 768px) {
    #cat {
        width: 200px;
    }
}

.back-button {
    position: fixed;
    top: 20px;
    left: 20px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    font-size: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-button:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateX(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .back-button {
        top: 15px;
        left: 15px;
        padding: 10px 16px;
        font-size: 14px;
    }
}