/* 基本樣式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f5f6fa;
    color: #2f3640;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #ffffff;
    padding: 40px 60px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 400px;
    width: 90%;
}

/* 標題與描述 */
h1 {
    font-size: 1.8em;
    margin-bottom: 10px;
}

.description {
    font-size: 0.95em;
    color: #636e72;
    margin-bottom: 20px;
}

/* 按鈕 */
.buttons button {
    padding: 10px 20px;
    margin: 5px;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    cursor: pointer;
    transition: transform 0.15s, background-color 0.3s;
}

#generate {
    background-color: #0984e3;
    color: white;
}

#generate:hover {
    background-color: #74b9ff;
    transform: translateY(-2px);
}

#copy {
    background-color: #dfe6e9;
    color: #2d3436;
}

#copy:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#copy:hover:not(:disabled) {
    background-color: #b2bec3;
    transform: translateY(-2px);
}

/* UUID 顯示區 */
.uuid-display {
    margin-top: 20px;
    word-break: break-all;
    font-family: monospace;
    font-size: 1.1em;
    color: #2d3436;
}