body {
    background: #fdf6e3;
    font-family: 'Noto Sans JP', 'Comic Sans MS', cursive, sans-serif;
    text-align: center;
    color: #222;
    margin: 0;
    padding: 0;
    animation: backgroundFlash 1s infinite alternate;
}

@keyframes backgroundFlash {
    0% { background-color: #fff8e7; }
    25% { background-color: #ffe0e0; }
    50% { background-color: #e0ffe0; }
    75% { background-color: #e0e0ff; }
    100% { background-color: #fdf6e3; }
}

h1 {
    font-size: 2.5em;
    margin: 20px 10px;
    color: #d40078;
    border: 2px dashed #d40078;
    display: inline-block;
    padding: 10px 20px;
    background: rgba(255, 200, 255, 0.2);
    animation: shake 0.5s infinite alternate;
}

.address {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: #000;
    font-weight: bold;
    font-family: monospace;
    background: #ffe0e0;
    padding: 5px 15px;
    border: 2px solid #ff0000;
    display: inline-block;
}

.cat-gallery {
    margin: 10px auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding: 0 10px;
}

.cat-gallery img {
    width: 100%;
    max-width: 150px;
    height: auto;
    border: 3px solid #444;
    box-shadow: 2px 2px 5px #00000055;
    filter: grayscale(30%) contrast(120%);
    background: #fff;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.cat-gallery img:hover {
    transform: rotate(-2deg) scale(1.05);
}

#yoshi-button {
    background: #ffcc00;
    color: #000;
    padding: 12px 24px;
    font-size: 1.5em;
    font-weight: bold;
    border: 3px solid #222;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 20px;
    box-shadow: 2px 2px 0 #000;
    font-family: 'Noto Sans JP', sans-serif;
    transition: transform 0.1s ease;
    animation: flicker 0.2s infinite alternate;
}

#yoshi-button:active {
    transform: scale(0.95) rotate(-1deg);
}

#message {
    font-size: 1.2em;
    margin-top: 20px;
    color: #ff0000;
    font-weight: bold;
    font-family: 'Noto Sans JP', sans-serif;
    animation: flicker 0.3s infinite alternate;
}

/* Shake animation */
@keyframes shake {
    0% { transform: rotate(-2deg); }
    100% { transform: rotate(2deg); }
}

/* Flicker animation */
@keyframes flicker {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}