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

/* Set default styles for header, h1, select, and dog image */
header {
    background-color: #ff3333;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

h1 {
    font-family: 'Roboto', sans-serif;
    font-size: 64px;
    text-transform: uppercase;
    letter-spacing: 8px;
    color: #fff;
    text-shadow: 2px 2px 0px rgba(0, 0, 0, 0.1);
}

select {
    background-color: #ff6666;
    color: #fff;
    border: none;
    padding: 12px;
    font-size: 18px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: absolute;
    bottom: 10px;
    right: 40px;
}

.dog-img {
    display: block;
    margin: 0 auto;
    border: 10px solid #ff6666;
    border-radius: 10px;
    height: 474px;
    width: 500px;
    margin-top: 50px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.loading-img {
    height: 60px;
}

#loading-spinner {
    animation: spin 2s linear infinite;
    text-align: center;
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }

/* Media query for small screens */
@media screen and (max-width: 768px) {
    h1 {
        font-size: 36px;
        letter-spacing: 4px;
    }
    select {
        font-size: 16px;
    }
    .dog-img {
        height: auto;
        width: 100%;
    }
}

/* Media query for medium screens */
@media screen and (min-width: 769px) and (max-width: 1024px) {
    h1 {
        font-size: 48px;
        letter-spacing: 6px;
    }
    select {
        font-size: 18px;
    }
    .dog-img {
        height: auto;
        width: 80%;
    }
}

/* Media query for large screens */
@media screen and (min-width: 1025px) {
    h1 {
        font-size: 64px;
        letter-spacing: 8px;
    }
    select {
        font-size: 20px;
    }
    .dog-img {
        height: 474px;
        width: 500px;
    }
}
:root {
    --primary-color: #ff3333; /* Set the primary color to a bright red shade */
    --background-color: #fff; /* Set the background color to white */
  }
  
  /* Dark mode */
  .dark-mode {
    --primary-color: #ff6666; /* Set the primary color to a darker shade of red */
    --background-color: #333; /* Set the background color to a dark gray */
  }
  
 
 
  
  /* Use the background color variable to set the background color of the page */
  body {
    background-color: var(--background-color);
  }
  
  /* Use the primary color variable to set the background color of buttons */
  button {
    background-color: var(--primary-color);
    color: #fff; /* Use a light color for the text to contrast with the background */
  }
  
  /* Use the primary color variable to set the background color of the dark mode toggle button */
  .dark-mode-toggle {
    background-color: var(--primary-color);
    color: #fff; /* Use a light color for the text to contrast with the background */
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
  }