body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
    background-color: #f5f5f5;
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 30px;
}

#wordcloud-container {
    width: 800px;
    height: 600px;
    margin: 0 auto;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 20px;
    position: relative;
}

#word-cloud {
    width: 100%;
    height: 100%;
}

.word-cloud-text {
    cursor: pointer;
    transition: all 0.2s ease;
}

.word-cloud-text:hover {
    fill: #ff6b6b !important;
    font-weight: bold;
}

#loading-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #666;
    font-size: 18px;
}

.tooltip {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
    z-index: 1000;
    transform: translate(-50%, -50%);
}

.tooltip-bubble {
    position: absolute;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    pointer-events: none;
    z-index: 1000;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.tooltip-bubble::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid rgba(0, 0, 0, 0.8);
}