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

html {
    font-size: 13px;
    overflow-x: hidden;
}

body {
    font-family: Georgia, serif;
    font-size: 1rem;
    line-height: 1.5;
    color: #000000;
    padding: clamp(12px, 1.5rem, 20px);
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.container {
    display: flex;
    gap: clamp(20px, 2.3rem, 30px);
    align-items: flex-start;
}

.left-column {
    flex: 0 0 220px;
    min-width: 0;
}

.right-column {
    flex: 1;
    min-width: 0;
}

.dropdown {
    margin-bottom: 2px;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.dropdown summary {
    cursor: pointer;
    padding: 0.4rem 0;
    list-style: none;
    color: #333;
    border-bottom: 1px solid #e0e0e0;
    user-select: none;
    touch-action: manipulation;
    transition: color 0.2s ease, border-color 0.2s ease;
    position: relative;
}

.dropdown summary::-webkit-details-marker {
    display: none;
}

.dropdown summary::before {
    content: '+ ';
    display: inline-block;
    width: 14px;
    color: #888;
    font-weight: 300;
    transition: color 0.2s ease, transform 0.2s ease;
}

.dropdown[open] summary::before {
    content: '− ';
    color: #333;
}

.dropdown summary:hover {
    color: #000;
    border-bottom-color: #bbb;
}

.dropdown summary:hover::before {
    color: #555;
}

.dropdown[open] summary {
    border-bottom-color: #ccc;
    font-weight: 500;
}

.dropdown .content {
    padding: 0.6rem 0 0.6rem 1.2rem;
    font-size: 0.92rem;
    line-height: 1.7;
    color: #444;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown .content p {
    margin-bottom: 0.46rem;
}

.dropdown .content p:last-child,
.dropdown .content ul:last-child {
    margin-bottom: 0;
}

.dropdown .content ul {
    margin-left: 1em;
    margin-bottom: 0.46rem;
}

.dropdown .content a {
    color: #333;
    text-decoration: underline;
    transition: color 0.2s ease;
}

.dropdown .content a:hover {
    color: #000;
    text-decoration-color: #666;
}

.main-image {
    max-width: 100%;
    height: auto;
    margin-bottom: 0.46rem;
}

.artwork-credit,
.last-updated {
    font-size: 0.85rem;
    color: #666;
    word-wrap: break-word;
}

.artwork-credit {
    margin-bottom: 0.31rem;
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    body {
        padding: 1rem;
    }
    
    .container {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .left-column {
        flex: 1;
    }
    
    .dropdown summary {
        padding: 0.35rem 0;
        min-height: 32px;
        display: flex;
        align-items: center;
        width: 100%;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    body {
        padding: 0.8rem;
    }
    
    .container {
        gap: 1.2rem;
    }
}