/**
 * Scrollytelling CSS
 * Based on lasr-web structure
 */

/* Font families */
body {
    font-family: 'Noto Sans', sans-serif;
}

.publication-title, h1, h2, h3, h4, h5, h6 {
    font-family: 'Google Sans', sans-serif;
}

/* Step styling */
.step {
    margin: 0 auto 2rem auto;
    padding: 1.5rem;
    background-color: #ffffff;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Active step highlighting */
.step.is-active {
    background-color: #ffffff;
    color: #000000;
}

/* Article column */
.article {
    padding: 2rem;
}

/* Figure/Image/Video positioning - only for scrollytelling sections */
#section2 img:not(.code-snippet),
#section2 video,
#section3 img:not(.code-snippet),
#section3 video {
    position: sticky;
    width: 100%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 0;
}

/* Code snippet images - larger size, preserve aspect ratio */
.code-snippet {
    width: 90% !important;
    height: auto !important;
    max-width: 600px;
    margin-top: 2.5rem;
    position: static !important;
    transform: none !important;
    display: block;
    border: 2px solid #555555;
    border-radius: 8px;
    padding: 4px;
}

/* Static section images - normal positioning */
.is-vcentered img,
.is-vcentered video {
    width: 100%;
}

/* Hero figure - not sticky */
.hero-figure img {
    position: static;
    transform: none;
}

/* Mobile corrections */
@media screen and (max-width: 768px) {
    img.underlay {
        z-index: -1;
        opacity: 0.3;
    }

    .step-background {
        background-color: white;
        padding: 1rem;
        border-radius: 8px;
    }

    .article {
        max-width: 100%;
    }
}

/* Ensure smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Add some spacing for scrollytelling sections */
.columns#section1,
.columns#section2,
.columns#section3 {
    min-height: 100vh;
    margin-top: 3rem;
    margin-bottom: 3rem;
}

/* Reduce container padding */
.container.is-fullhd {
    max-width: 100%;
    padding-left: 2rem;
    padding-right: 2rem;
}

/* Reduce section padding */
.section {
    padding: 2rem 0;
}

/* Rounded buttons */
.button {
    border-radius: 25px;
}

/* Author links styling */
.author-link {
    color: #4478e8;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.author-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* PyTorch orange buttons */
.pytorch-button {
    background-color: #4478e8;
    color: white;
    border: none;
}

.pytorch-button:hover {
    background-color: #5a88ea;
    color: white;
}