/* Reset and Base Styles */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #111;
    background-color: #ffffff;
    position: relative;
    font-size: 16px;
    font-weight: 300;
}

/* Header and Navigation */
.site-header {
    background-color: #ffffff;
    border-bottom: 1px solid #111;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    background-color: transparent;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-brand h1 {
    font-size: 1.4rem;
    font-weight: 400;
    color: #111;
    letter-spacing: 0.02em;
    text-transform: none;
}

.nav-subtitle {
    font-size: 0.85rem;
    color: #666666;
    font-weight: 300;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-item-dropdown {
    position: relative;
}

.nav-link {
    display: block;
    text-decoration: none;
    color: #111;
    font-size: 0.9rem;
    font-weight: 300;
    padding: 0.5rem 0;
    transition: opacity 0.2s ease;
    position: relative;
    letter-spacing: 0.02em;
}

.nav-link:hover,
.nav-link.active {
    color: #007D69;
}

/* Dropdown Menu Styles */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #ffffff;
    min-width: 180px;
    list-style: none;
    padding: 0.75rem 0;
    margin-top: 0.5rem;
    border: 1px solid #111;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1001;
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.6rem 1.5rem;
    color: #111;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 300;
    transition: background-color 0.2s ease;
    letter-spacing: 0.02em;
}

.dropdown-menu a:hover {
    background-color: #f5f5f5;
}

/* Main Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 5rem 4rem;
    position: relative;
    z-index: 1;
}

/* Hero Section */
.hero {
    padding: 2rem 0 1.5rem;
    margin-bottom: 2rem;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 300;
    color: #003C3C;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.title-divider {
    width: 40px;
    height: 1px;
    background: #111;
    margin: 2rem 0;
}

.hero-text {
    font-size: 1.15rem;
    color: #111;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    font-weight: 300;
    max-width: 650px;
}

.research-keywords {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.keyword {
    padding: 0.5rem 0;
    color: #111;
    font-size: 0.9rem;
    font-weight: 300;
    border-bottom: 1px solid #111;
    letter-spacing: 0.02em;
}

/* Intro Section */
.intro {
    margin: 5rem 0;
}

.intro-inner {
    display: flex;
    align-items: flex-start;
    gap: 4rem;
    max-width: 900px;
}

.intro-inner p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #111;
    font-weight: 300;
    flex: 1;
    margin: 0;
}

.profile-image-wrap {
    flex-shrink: 0;
    width: 220px;
}

.profile-image {
    width: 100%;
    display: block;
    filter: grayscale(100%);
    /* subtle grain/contrast to match the B&W site palette */
    filter: grayscale(100%) contrast(1.05);
}

@media (max-width: 768px) {
    .intro-inner {
        flex-direction: column-reverse;
        gap: 2.5rem;
    }

    .profile-image-wrap {
        width: 160px;
    }
}

/* Highlights Section */
.highlights {
    margin: 6rem 0;
}

.highlights h2 {
    font-size: 1.5rem;
    font-weight: 300;
    color: #007D69;
    margin-bottom: 3rem;
    letter-spacing: 0.02em;
}

.update-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.update-card {
    padding: 0;
    background-color: transparent;
    border: none;
    transition: opacity 0.2s ease;
}

.update-card:hover {
    opacity: 0.7;
    transform: none;
}

.update-card h3 {
    font-size: 1.1rem;
    font-weight: 400;
    color: #111;
    margin-bottom: 0.8rem;
    letter-spacing: 0.01em;
}

.update-card p {
    color: #666666;
    font-size: 0.95rem;
    line-height: 1.6;
    font-weight: 300;
}

.events-list {
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
}

.events-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1.5rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid #e8e8e8;
    font-size: 0.95rem;
    font-weight: 300;
    width: 100%;
}

.event-name {
    color: #111;
}

.events-list li:last-child {
    border-bottom: none;
}

.publications-list {
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
}

.publications-list li {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid #e8e8e8;
}

.publications-list li:last-child {
    border-bottom: none;
}

.pub-title {
    color: #111;
    font-size: 0.95rem;
    font-weight: 400;
    text-decoration: none;
    line-height: 1.4;
}

.pub-title:hover {
    opacity: 0.5;
}

.pub-venue {
    color: #666666;
    font-size: 0.85rem;
    font-weight: 300;
    font-style: italic;
}

.pub-doi {
    color: #999999;
    font-size: 0.8rem;
    font-weight: 300;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.stat-label {
    font-size: 0.72rem;
    font-weight: 400;
    color: #999999;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stat-value {
    font-size: 1rem;
    font-weight: 300;
    color: #111;
}

@media (max-width: 600px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Publications */

.publications-loading {
    color: #999999;
    font-size: 0.9rem;
    font-weight: 300;
}

.pub-year-group {
    margin-bottom: 3rem;
}

.pub-year {
    font-size: 1rem;
    font-weight: 400;
    color: #111;
    margin-bottom: 1rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid #111;
    letter-spacing: 0.02em;
}

.pub-entry {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 1rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.pub-entry:last-child {
    border-bottom: none;
}

.pub-title-link {
    font-size: 0.95rem;
    font-weight: 400;
    color: #111;
    text-decoration: none;
    line-height: 1.4;
}

a.pub-title-link:hover {
    opacity: 0.5;
}

.pub-authors {
    font-size: 0.88rem;
    font-weight: 300;
    color: #444444;
    line-height: 1.5;
}

.pub-author-self {
    text-decoration: underline;
    text-underline-offset: 2px;
}

.pub-venue-orcid {
    font-size: 0.88rem;
    font-weight: 300;
    color: #666666;
    font-style: italic;
}

.pub-doi-text {
    font-size: 0.8rem;
    font-weight: 300;
    color: #999999;
}

.pub-doi-text a {
    color: #999999;
}

.pub-doi-text a:hover {
    opacity: 0.5;
}

.pub-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.pub-citations {
    font-size: 0.78rem;
    font-weight: 400;
    color: #ffffff;
    background: #111;
    padding: 0.15rem 0.55rem;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}

/* Collaborators */
.collaborators-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem 2rem;
    margin: 2rem 0;
}

.collaborator-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.collaborator-name {
    font-size: 0.95rem;
    font-weight: 400;
    color: #111;
}

.collaborator-affiliation {
    font-size: 0.78rem;
    font-weight: 300;
    color: #999999;
}

@media (max-width: 768px) {
    .collaborators-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .collaborators-grid {
        grid-template-columns: 1fr;
    }
}

/* CV List */
.cv-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 800px;
}

.cv-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.cv-item:last-child {
    border-bottom: none;
}

.cv-meta {
    display: flex;
    gap: 2rem;
    align-items: baseline;
}

.cv-year {
    font-size: 0.82rem;
    color: #999999;
    font-weight: 300;
    min-width: 120px;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}

.cv-institution {
    font-size: 0.95rem;
    font-weight: 400;
    color: #111;
}

.cv-detail {
    font-size: 0.9rem;
    font-weight: 300;
    color: #666666;
    padding-left: calc(120px + 2rem);
}

@media (max-width: 480px) {
    .cv-meta {
        flex-direction: column;
        gap: 0.2rem;
    }

    .cv-detail {
        padding-left: 0;
    }
}

/* About Grid & Favourites */
.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    max-width: 700px;
}

.about-item {
    display: flex;
    gap: 2rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid #f0f0f0;
    align-items: baseline;
}

.about-item:last-child {
    border-bottom: none;
}

.about-label {
    font-size: 0.82rem;
    font-weight: 300;
    color: #999999;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    min-width: 150px;
    flex-shrink: 0;
}

.about-value {
    font-size: 0.95rem;
    font-weight: 300;
    color: #111;
    line-height: 1.5;
}

/* Personal Motto */
.personal-motto {
    font-size: 1.15rem;
    font-weight: 300;
    color: #111;
    line-height: 1.7;
    border-left: 2px solid #111;
    padding-left: 1.5rem;
    margin: 0;
    max-width: 700px;
    font-style: italic;
}

@media (max-width: 480px) {
    .about-item {
        flex-direction: column;
        gap: 0.2rem;
    }

    .about-label {
        min-width: unset;
    }
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 200px);
    gap: 1.5rem 0;
    margin-top: 0.5rem;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.contact-item:hover {
    opacity: 0.5;
}

.contact-label {
    font-size: 0.72rem;
    font-weight: 300;
    color: #999999;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.contact-value {
    font-size: 0.9rem;
    font-weight: 300;
    color: #111;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.event-date {
    color: #999999;
    font-size: 0.85rem;
    white-space: nowrap;
}

/* Footer */
footer {
    background-color: transparent;
    padding: 3rem 4rem;
    text-align: left;
    color: #666666;
    font-size: 0.85rem;
    border-top: 1px solid #111;
    margin-top: 8rem;
    font-weight: 300;
}

/* Network Background Canvas */
#network-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.015;
    pointer-events: none;
}

/* Content Sections */
.content-section {
    margin: 2.5rem 0;
}

.content-section h2 {
    font-size: 1.5rem;
    font-weight: 300;
    color: #007D69;
    margin-bottom: 2.5rem;
    letter-spacing: 0.02em;
    padding-bottom: 0;
    border-bottom: none;
}

.content-section h3 {
    font-size: 1.2rem;
    font-weight: 400;
    color: #111;
    margin: 2.5rem 0 1rem;
    letter-spacing: 0.01em;
}

.content-section p {
    margin-bottom: 1.5rem;
    color: #111;
    line-height: 1.8;
    font-size: 1rem;
    font-weight: 300;
}

.content-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.content-section li {
    margin-bottom: 0.8rem;
    color: #111;
    line-height: 1.7;
    font-weight: 300;
}

/* Links */
a {
    color: #111;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.5;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: #111;
    color: #ffffff;
    text-decoration: none;
    font-weight: 300;
    transition: opacity 0.2s ease;
    border: 1px solid #111;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

.btn-primary:hover {
    opacity: 0.7;
}

/* Responsive Design */

@media (max-width: 1024px) {
    .nav-container {
        padding: 2rem 3rem;
    }
    
    .container {
        padding: 4rem 3rem;
    }
    
    footer {
        padding: 3rem;
    }
}

/* Hamburger Button */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1100;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 1px;
    background-color: #111;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Animate to X when open */
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 1.5rem 2rem;
        flex-wrap: nowrap;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #ffffff;
        border-top: 1px solid #111;
        border-bottom: 1px solid #111;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 1rem 2rem;
        z-index: 1000;
    }

    .nav-menu.nav-open {
        display: flex;
    }

    .nav-menu > li {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-menu > li:last-child {
        border-bottom: none;
    }

    .nav-link {
        padding: 0.75rem 0;
        font-size: 1rem;
        display: block;
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        border: none;
        border-left: 1px solid #111;
        margin: 0 0 0.5rem 0.5rem;
        padding: 0.25rem 0;
        display: none;
        box-shadow: none;
    }

    .nav-item-dropdown:hover .dropdown-menu,
    .nav-item-dropdown:focus-within .dropdown-menu {
        display: block;
    }

    .dropdown-menu a {
        padding: 0.4rem 1rem;
        font-size: 0.9rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-text {
        font-size: 1rem;
    }

    .container {
        padding: 3rem 2rem;
    }

    .update-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    footer {
        padding: 3rem 2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .nav-brand h1 {
        font-size: 1rem;
    }

    .research-keywords {
        flex-direction: column;
        gap: 1rem;
    }
}

/* ── Video sections ── */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.video-item {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.video-embed {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    background: #111;
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-title {
    font-size: 0.95rem;
    font-weight: 400;
    color: #111;
    margin: 0;
}

.video-description {
    font-size: 0.85rem;
    font-weight: 300;
    color: #666;
    margin: 0;
}

.section-subtitle {
    font-size: 0.85rem;
    font-weight: 300;
    color: #666;
    font-style: italic;
}

@media (max-width: 600px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Video list (Off the Clock) ── */
.video-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0 0;
    border-top: 1px solid #e8e8e8;
}

.video-list-item {
    border-bottom: 1px solid #e8e8e8;
}

.video-list-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 1rem 0.25rem;
    text-decoration: none;
    color: #111;
    transition: color 0.2s;
}

.video-list-link:hover {
    color: #555;
}

.video-list-title {
    font-size: 0.95rem;
    font-weight: 300;
}

.video-list-arrow {
    font-size: 0.9rem;
    color: #999;
    flex-shrink: 0;
    margin-left: 1rem;
}

.video-list-loading {
    font-size: 0.9rem;
    font-weight: 300;
    color: #999;
    padding: 1rem 0;
}

/* ── Video list parsed layout ── */




.video-list-artist {
    font-size: 0.85rem;
    font-weight: 300;
    color: #555;
}

.video-list-song {
    font-size: 0.95rem;
    font-weight: 400;
    color: #111;
}

.video-list-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.video-list-date {
    color: #999;
    font-size: 0.85rem;
}

/* ── Video list inline format ── */


.video-list-sep {
    color: #999;
}

/* ── Video list publication style ── */


/* ── Playlist link line ── */
.playlist-link-line {
    font-size: 0.8rem;
    font-weight: 300;
    color: #999;
    margin: -0.5rem 0 1rem 0;
}

.playlist-link-line a {
    color: #999;
    text-decoration: underline;
}

.playlist-link-line a:hover {
    color: #555;
}

/* ── DOI inline in video list ── */
.video-list-main .pub-doi-text {
    display: inline;
    font-size: 0.85rem;
    font-weight: 300;
    color: #999;
}

.video-list-main .pub-doi-text a {
    color: #999;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 300;
}

.video-list-main .pub-doi-text a:hover {
    color: #555;
}

/* ── Force DOI truly inline in video list ── */


.video-list-main .pub-doi-text {
    display: block;
    font-size: 0.85rem;
    font-weight: 300;
    color: #999;
    white-space: nowrap;
}

/* ── Section sub italic lines ── */
.section-sub-italic {
    font-size: 0.85rem;
    font-weight: 300;
    color: #555;
    margin: -0.5rem 0 0.25rem 0;
}

.section-sub-italic a {
    color: #555;
    text-decoration: none;
}

.section-sub-italic a:hover {
    color: #111;
}

/* ── Video list item - decoupled title/authors/doi ── */
.video-title-link {
    display: block;
    font-size: 0.95rem;
    font-weight: 400;
    color: #111;
    text-decoration: none;
}

.video-title-link:hover {
    text-decoration: underline;
}

.doi-link {
    color: #999;
    text-decoration: none;
    font-weight: 300;
}

.doi-link:hover {
    color: #555;
    text-decoration: underline;
}

/* ── Tighten h2 margin when followed by sub-italic lines ── */
#notebooklm-presentations h2 {
    margin-bottom: 0.3rem;
}

#notebooklm-presentations .section-sub-italic {
    margin: 0 0 0.2rem 0;
}

#notebooklm-presentations .video-list {
    margin-top: 1.5rem;
}

/* ── DOI on its own line ── */
.video-list-item .video-list-artist + span,
.video-list-item span.video-list-artist:last-child {
    display: block;
}

/* ── NotebookLM list item layout ── */
#notebooklm-list .video-list-item {
    display: flex;
    flex-direction: column;
    padding: 1rem 0.25rem;
    gap: 0.2rem;
}

#notebooklm-list .video-title-link {
    display: block;
}

#notebooklm-list .video-list-artist {
    display: block;
    font-size: 0.85rem;
    font-weight: 300;
    color: #555;
}

/* ── Tighten h2 margin for guitar section ── */
#off-the-clock h2 {
    margin-bottom: 0.3rem;
}

#off-the-clock .section-sub-italic {
    margin: 0 0 0.2rem 0;
}

#off-the-clock .video-list {
    margin-top: 1.5rem;
}

/* ── NotebookLM title row with right-aligned arrow ── */
.video-title-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

/* ── Contact Form ── */
.contact-form-title {
    font-size: 1.5rem;
    font-weight: 300;
    color: #111;
    margin: 3rem 0 1.5rem 0;
    letter-spacing: 0.02em;
}

.contact-form {
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 300;
    color: #555;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.form-group input,
.form-group textarea {
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 300;
    color: #111;
    background: transparent;
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 0.5rem 0;
    outline: none;
    transition: border-color 0.2s;
    resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #bbb;
    font-weight: 300;
}

.form-group input:focus,
.form-group textarea:focus {
    border-bottom-color: #111;
}

.form-submit {
    align-self: flex-start;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #111;
    background: transparent;
    border: 1px solid #111;
    padding: 0.6rem 1.5rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.form-submit:hover {
    background: #111;
    color: #fff;
}

/* ── Scroll fade-in animation ─────────────────────────────── */
.fade-in {
    opacity: 0;
    transition: opacity 0.7s ease;
}

.fade-in.visible {
    opacity: 1;
}