/* ============================================================
   Narrated walkthrough video — sits at top of Demo section.
   ============================================================ */

.demo-video {
    margin: 0 auto 3rem;
    max-width: 960px;
    text-align: center;
}

.demo-video-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 16px;
    overflow: hidden;
    background: #0f172a;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.25);
}

.demo-video-frame video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    background: #0f172a;
}

.demo-video figcaption {
    margin-top: 0.85rem;
    font-size: 0.95rem;
    color: var(--text-secondary, #4b5563);
    line-height: 1.55;
}

@media (max-width: 640px) {
    .demo-video {
        margin-bottom: 2rem;
    }

    .demo-video-frame {
        border-radius: 12px;
    }
}