Parallax Scroll Hero

<!DOCTYPE html>
<title>My Example</title>

<style>
    :root {
        /*
            Using an image from picsum.photos for demonstration.
            Replace with your own image.
        */
        --psh-bg-image: url('https://picsum.photos/id/1015/1600/1200');
        --psh-min-height: 90vh;
        --psh-padding: 3rem 1.5rem;
        --psh-text-color: #ffffff;
        --psh-overlay-color: rgba(17, 24, 39, 0.5);
        --psh-cta-bg: #fff;
        --psh-cta-text-color: #111827;
        --psh-cta-hover-bg: #f3f4f6;
    }
    .parallax-hero {
        box-sizing: border-box;
        font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
        min-height: var(--psh-min-height);
        padding: var(--psh-padding);
        width: 100%;
        position: relative;
        display: flex;
        justify-content: center;
        align-items: center;
        text-align: center;
        background-image: var(--psh-bg-image);
        background-position: center 0;
        background-repeat: no-repeat;
        background-size: cover;
    }
    .parallax-hero::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0; bottom: 0;
        background-color: var(--psh-overlay-color);
        z-index: 1;
    }
    .parallax-hero * {
         box-sizing: border-box;
    }
    .psh-content {
        position: relative;
        z-index: 2;
        max-width: 900px;
        color: var(--psh-text-color);
    }
    .psh-content .title {
        font-size: clamp(2.5rem, 6vw, 4.5rem);
        font-weight: 800;
        line-height: 1.1;
        margin: 0 0 1rem;
        text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    }
    .psh-content .subtitle {
        font-size: clamp(1.1rem, 3vw, 1.25rem);
        margin: 0 0 2rem;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }
    .psh-content .cta {
        display: inline-block;
        background-color: var(--psh-cta-bg);
        color: var(--psh-cta-text-color);
        padding: 0.9rem 2.2rem;
        border-radius: 8px;
        border: none;
        font-size: 1.05rem;
        font-weight: 600;
        text-decoration: none;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }
    .psh-content .cta:hover {
        background-color: var(--psh-cta-hover-bg);
    }

/* Extra content section for demonstrating the scroll effect */
    .scroll-demo-content {
        height: 100vh; /* Ensures a lot of scroll space */
        padding: 4rem 1.5rem;
        background-color: #fff;
        color: #111827;
    }
    .scroll-demo-content p {
        max-width: 700px;
        margin: 0 auto 1rem;
        line-height: 1.6;
    }
</style>

<section class="parallax-hero" id="parallax-hero-section">
    <div class="psh-content">
        <h1 class="title">A New Perspective</h1>
        <p class="subtitle">Our innovative approach redefines industry standards, creating solutions that are both powerful and elegant.</p>
        <a href="#" role="button" class="cta">Learn More About Us</a>
    </div>
</section>

<section class="scroll-demo-content">
    <p>Scroll down to see the true parallax effect in action. Notice how the content in this section scrolls normally, while the background image of the hero above scrolls up at a slower speed.</p>
    <p>This is achieved with a small JavaScript snippet that adjusts the background's vertical position based on your scroll position.</p>
</section>

<script>
(function() {
    const parallaxSection = document.getElementById('parallax-hero-section');
    if (!parallaxSection) return;

// --- Configuration ---
    const parallaxSpeed = 0.5; // Set speed factor. 0.5 means it scrolls at half the speed.
    // --- End Configuration ---

window.addEventListener('scroll', function() {
        const offset = window.pageYOffset;
        parallaxSection.style.backgroundPositionY = offset * parallaxSpeed + 'px';
    });
})();
</script>