body {
    margin: 0;
    font-family: Helvetica, serif;
    background-color: #f8f8f8;
    color: #333;
}

nav {
    background-color: #000000;
    padding: 10px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

nav a {
    color: white;
    text-decoration: none;
    background-color: #555;
    padding: 8px 16px;
    transition: background-color 0.3s;
}

nav a:hover {
    background-color: #777;
}

h1 {
    text-align: center;
    font-size: 3em;
    margin-top: 20px;
}

h2 {
    text-align: center;
    font-size: 1.5em;
    margin-top: 20px;
}

h3 {
    text-align: center;
    font-size: 1em;
    margin-top: 20px;
}

p {
    text-align: center;
    line-height: 1.6;
    max-width: 800px;
    margin: 10px auto;
    padding: 0 15px;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    padding: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.photo-grid img {
    width: 100%;
    height: auto;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.photo-grid img:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.lightbox {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    box-shadow: 0 4px 30px rgba(0,0,0,0.6);
}

.lightbox.active {
    display: flex;
}

#myBtn {
  display: none; /* Hidden by default */
  position: fixed; /* Fixed/sticky position */
  bottom: 20px; /* Place the button at the bottom of the page */
  right: 30px; /* Place the button 30px from the right */
  z-index: 99; /* Make sure it does not overlap */
  border: none; /* Remove borders */
  outline: none; /* Remove outline */
  background-color: black; /* Set a background color */
  color: white; /* Text color */
  cursor: pointer; /* Add a mouse pointer on hover */
  padding: 15px; /* Some padding */
  font-size: 18px; /* Increase font size */
}

#myBtn:hover {
  background-color: #777;
}