body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #000; /* Dark background color */
    color: #fff; /* Light text color */
}

header {
    background-color: #111;
    color: white;
    padding: 10px;
    text-align: center;
}

section {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #222; /* Darker section background color */
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1; /* Ensure the text is on top of the shapes */
}

footer {
    background-color: #111;
    color: white;
    text-align: center;
    padding: 10px;
}

.shapes {
    position: fixed; /* Fix the shapes relative to the viewport */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1; /* Place the shapes behind the content */
}

.shape {
    position: absolute;
    opacity: 0.15; /* Adjust the opacity as needed */
    filter: blur(10px); /* Apply a slight blur for a futuristic effect */
}

.circle {
    width: 600px;
    height: 600px;
    background: radial-gradient(#3498db, #1a5276);
    border-radius: 50%;
    top: -200px; /* Move the circle higher */
    left: 0;
    mix-blend-mode: screen;
}

.rectangle {
    width: 800px;
    height: 400px;
    background: linear-gradient(to right, #2ecc71, #27ae60);
    top: 800px; /* Move the rectangle lower */
    left: 0;
    mix-blend-mode: screen;
}

.triangle {
    width: 0;
    height: 0;
    border-left: 300px solid transparent;
    border-right: 300px solid transparent;
    border-bottom: 600px solid #e74c3c;
    top: -100px; /* Adjust the position higher up */
    left: calc(50% + 200px); /* Move the triangle to the right */
    mix-blend-mode: screen;
}