@charset "utf-8";

:root {
    --color-page: #f4f7fb;
    --color-panel: #ffffff;
    --color-ink: #16202e;
    --color-muted: #5e6a7a;
    --color-accent: #1a5fd6;
    --color-accent-2: #0f9d8f;
    --color-accent-dark: #0d3f7a;
    --color-border: #e4eaf2;
    --gradient-accent: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
    --shadow-panel: 0 10px 28px rgba(20, 34, 52, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Lato", sans-serif;
    font-weight: 400;
    padding-top: 5.0rem;
    color: var(--color-ink);
    background: linear-gradient(180deg, #f7f9fd 0%, #edf1f8 60%, #eaeef6 100%) fixed !important;
    line-height: 1.55;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-weight: 700;
    letter-spacing: 0;
    color: var(--color-ink);
}

a {
    color: var(--color-accent);
}

a:hover {
    color: var(--color-accent-dark);
    text-decoration-thickness: 2px;
}

.card {
    border-radius: 0.9rem!important;
}

.card-img-overlay {
    border-radius: 0.9rem!important;
}

.rounded-xl {
    border-radius: 0.9rem!important;
}

.rounded-xl-bottom {
    border-bottom-right-radius: 0.9rem !important;
    border-bottom-left-radius: 0.9rem !important;
}

.rounded-xl-top {
    border-top-left-radius: 0.9rem !important;
    border-top-right-radius: 0.9rem !important;
}

.shadow-sm {
    box-shadow: var(--shadow-panel) !important;
}

.bg-white {
    background-color: var(--color-panel) !important;
}

.border-gray,
.border-bottom,
.border-top {
    border-color: var(--color-border) !important;
}


.text-profile-position {
    font-weight: 400;
}

.text-profile-bio {
    /* font-family: "Raleway"; */
    font-weight: 400;
}

.navbar {
    opacity: 1;
    background: rgba(26, 36, 51, 0.88) !important;
    -webkit-backdrop-filter: saturate(150%) blur(10px);
    backdrop-filter: saturate(150%) blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    min-height: 58px;
}

.navbar-brand {
    letter-spacing: 0;
}

.navbar-dark .navbar-nav .nav-link {
    position: relative;
    color: rgba(255, 255, 255, 0.72);
    font-weight: 700;
}

.navbar-dark .navbar-nav .nav-link::after {
    content: "";
    position: absolute;
    left: 0.5rem;
    right: 0.5rem;
    bottom: 0.2rem;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, #4d9fff, #2dd4bf);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}

.navbar-dark .navbar-nav .active > .nav-link,
.navbar-dark .navbar-nav .nav-link:hover {
    color: #ffffff;
}

.navbar-dark .navbar-nav .active > .nav-link::after,
.navbar-dark .navbar-nav .nav-link:hover::after {
    transform: scaleX(1);
}

.inline-badge {
    height: 16px;
    vertical-align: -10%;
    margin-right: 2px;
    line-break: unset;
}

.no-break {
    white-space: nowrap;
}

.cover-image {
    width: 180px;
    max-height: 120px;
}

.abstract-body {
    min-height: 100px;
}

img.lazy {
    background-image: url('images/loading.gif');
    background-repeat: no-repeat;
    background-position: 50% 50%;
    background-size: 50px 50px;
    min-height: 80px;
}

div.lazy {
    background-image: url('images/loading.gif');
    background-repeat: no-repeat;
    background-position: 50% 50%;
    background-size: 50px 50px;
    min-height: 80px;
}

.badge-publication {
    font-size: 100%;
}

.email-text {
    font-family: Source Code Pro, monospace;
}

.section-heading {
    font-size: 1rem;
    color: var(--color-ink);
}

.section-heading i {
    color: var(--color-accent);
    margin-right: 0.15rem;
}

.profile-card {
    position: relative;
    overflow: hidden;
}

.profile-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), #27a6a6);
}

.profile-card .card-body {
    padding-top: 3.1rem !important;
}

.profile-card .h1 {
    font-family: "Source Serif 4", Georgia, serif;
    font-size: 2.7rem;
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: 0.8rem;
    background: linear-gradient(94deg, #14233a 30%, var(--color-accent) 85%, var(--color-accent-2) 110%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.profile-card .img-thumbnail {
    border-color: var(--color-border);
    border-radius: 0.7rem;
    box-shadow: 0 8px 22px rgba(20, 34, 52, 0.12);
}

.text-profile-position {
    color: #2f3a49;
    font-weight: 700;
}

.text-profile-bio {
    max-width: 820px;
    color: #2f3a49;
    font-size: 1.02rem;
}

.profile-highlights {
    display: grid;
    gap: 0.42rem;
    max-width: 860px;
}

.profile-highlight {
    display: flex;
    align-items: flex-start;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.profile-highlight i {
    color: #16875f;
    margin-right: 0.45rem;
    margin-top: 0.24rem;
}

.profile-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem 1.05rem;
}

.profile-links a {
    padding-right: 0 !important;
    font-weight: 700;
}

.profile-links .email-text {
    overflow-wrap: anywhere;
}

.research-panel {
    overflow: hidden;
}

.research-topic {
    border-right: 1px solid var(--color-border);
}

.research-topic:last-child {
    border-right: 0;
}

.research-topic-inner {
    height: 100%;
    padding: 1.25rem 1.35rem;
}

.research-topic-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.35rem;
    height: 2.35rem;
    margin-bottom: 0.7rem;
    border-radius: 0.7rem;
    color: #ffffff;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
    box-shadow: 0 6px 14px rgba(18, 102, 214, 0.25);
}

.research-topic h6 {
    margin-bottom: 0.35rem;
}

.research-topic p {
    margin-bottom: 0;
    color: var(--color-muted);
    font-size: 0.94rem;
}

.experience-card h6 {
    color: var(--color-accent-dark);
    margin-bottom: 0.55rem;
}

.experience-card li.media {
    margin-bottom: 0.55rem !important;
}

.news-card .media {
    align-items: flex-start;
}

.news-list {
    font-size: 0.96rem;
}

.news-year {
    min-width: 2.9rem;
    font-weight: 700;
    color: var(--color-accent-dark);
}

.news-item {
    position: relative;
    align-items: baseline;
    column-gap: 1rem;
    padding: 0.42rem 0.5rem 0.42rem 1.15rem;
    border-bottom: 1px dashed var(--color-border);
    border-radius: 0.45rem;
    transition: background-color 0.16s ease;
}

.news-item:last-child {
    border-bottom: 0;
}

.news-item:hover {
    background-color: #f5f9ff;
}

.news-item::before {
    content: "";
    position: absolute;
    left: 0.15rem;
    top: 0.98em;
    width: 0.42rem;
    height: 0.42rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
}

.news-date {
    font-size: 0.82rem;
    font-style: italic;
}

.publication-item .row,
.publication-mobile-item {
    transition: background-color 0.16s ease;
}

.publication-item .row:hover,
.publication-mobile-item:hover {
    background-color: #f8fbff;
}

.publication-cover {
    aspect-ratio: 4 / 3;
    object-fit: contain;
    background: #f8fafc;
    border: 1px solid var(--color-border);
}

.publication-title {
    font-size: 1.08rem;
    line-height: 1.28;
    font-weight: 700 !important;
    overflow-wrap: anywhere;
}

.publication-authors {
    color: #2f3a49;
}

.publication-meta {
    color: #39485e;
}

.publication-abstract {
    color: var(--color-muted) !important;
}

.publication-item-compact .publication-title {
    font-size: 1.13rem;
}

.publication-item-compact .publication-abstract {
    max-width: 860px;
}

.publication-mobile-cover {
    max-height: 150px;
    margin-bottom: 0.9rem;
    object-fit: contain;
    background: #f8fafc;
    border: 1px solid var(--color-border);
}

.abstract-links a {
    display: inline-block;
    margin-right: 0.18rem;
    font-weight: 700;
}

.badge-publication {
    border-radius: 999px;
    padding: 0.2rem 0.55rem;
    font-size: 0.78rem;
    font-weight: 700;
    transition: transform 0.18s ease;
}

.badge-publication:hover {
    transform: translateY(-1px);
}

.badge-publication.badge-success {
    background: #e5f5ec !important;
    color: #0e7a4a !important;
}

.badge-publication.badge-info {
    background: #e8f1ff !important;
    color: #1558c0 !important;
}

/* Publication status semantics: green = accepted venue, amber = technical
   report, gray = preprint, gradient = contributor role */
.badge-publication.badge-secondary {
    background: #eef1f5 !important;
    color: #59657a !important;
}

.badge-publication.badge-warning {
    background: #fdf1de !important;
    color: #96600f !important;
}

.badge-publication.badge-core {
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2)) !important;
    color: #ffffff !important;
    box-shadow: 0 3px 10px rgba(18, 102, 214, 0.35);
}

.badge-publication.badge-core i {
    font-size: 0.68rem;
    margin-right: 0.12rem;
}

a.badge-publication.badge-info:hover {
    background: #d8e8ff !important;
    color: #0d3f7a !important;
}

#navbar-year .nav-link {
    font-weight: 700;
}

.footer {
    background: #ffffff !important;
}

@media (max-width: 767.98px) {
    body {
        padding-top: 4.4rem;
    }

    .container-lg {
        padding-left: 0.9rem;
        padding-right: 0.9rem;
        max-width: 100%;
    }

    .profile-card .card-body {
        padding: 2.2rem 1.55rem !important;
    }

    .profile-card .h1 {
        font-size: 2.15rem;
    }

    .text-profile-bio {
        font-size: 1rem;
    }

    .profile-links {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.35rem;
    }

    .research-topic {
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
    }

    .research-topic:last-child {
        border-bottom: 0;
    }

    .experience-card .card-body {
        padding: 1.35rem !important;
    }

    .experience-card .small.d-flex {
        display: block !important;
    }

    .experience-card .small.d-flex .ml-auto {
        margin-left: 0 !important;
    }

    .news-card .media {
        display: block;
    }

    .news-card .news-item {
        display: block !important;
        margin-bottom: 0.35rem !important;
    }

    .news-card .media-body .ml-auto {
        margin-left: 0 !important;
    }

    .publication-mobile-item .px-4 {
        padding-left: 1.35rem !important;
        padding-right: 1.35rem !important;
    }

    .publication-title {
        font-size: 1.02rem;
    }

    .publication-item-compact .publication-title {
        font-size: 1.06rem;
    }

    .publication-abstract {
        font-size: 0.9rem;
    }

    .navbar-toggler {
        max-width: 8rem;
        white-space: nowrap;
    }
}

/* ---- 4-tile research grid: fix borders when wrapping 2x2 on md/lg ---- */
@media (min-width: 768px) and (max-width: 1199.98px) {
    .research-topic-quad {
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
    }

    .research-topic-quad:nth-child(odd) {
        border-right: 1px solid var(--color-border);
    }

    .research-topic-quad:nth-last-child(-n+2) {
        border-bottom: 0;
    }
}

/* ---- Video covers ---- */
video.publication-cover,
video.publication-mobile-cover {
    object-fit: cover;
    display: block;
}

video.publication-mobile-cover {
    width: 100%;
    height: 150px;
}

/* ---- Motion: scroll reveal ---- */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal-visible {
    opacity: 1;
    transform: none;
}

/* ---- Motion: card hover lift ---- */
.rounded-xl.shadow-sm,
.card.shadow-sm {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.rounded-xl.shadow-sm:hover,
.card.shadow-sm:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(20, 34, 52, 0.12) !important;
}

/* ---- Motion: animated accent bar on the profile card ---- */
.profile-card::before {
    background: linear-gradient(90deg, var(--color-accent), #27a6a6, var(--color-accent));
    background-size: 200% 100%;
    animation: accent-pan 8s linear infinite;
}

@keyframes accent-pan {
    from { background-position: 0% 0; }
    to { background-position: 200% 0; }
}

/* ---- Motion: research tile micro-interaction ---- */
.research-topic-icon {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.research-topic:hover .research-topic-icon {
    transform: translateY(-2px) scale(1.07);
    box-shadow: 0 10px 20px rgba(18, 102, 214, 0.32);
}

/* ---- Motion: publication cover zoom ---- */
.publication-cover,
.publication-mobile-cover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.publication-item .row:hover .publication-cover,
.publication-mobile-item:hover .publication-mobile-cover {
    transform: scale(1.025);
    box-shadow: 0 8px 20px rgba(20, 34, 52, 0.14);
}

/* ---- Motion: portrait hover ---- */
.profile-card .img-thumbnail {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-card .img-thumbnail:hover {
    transform: scale(1.02) rotate(-0.5deg);
    box-shadow: 0 14px 30px rgba(20, 34, 52, 0.18);
}

/* ---- Respect reduced-motion preferences ---- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .rounded-xl.shadow-sm,
    .card.shadow-sm,
    .research-topic-icon,
    .publication-cover,
    .publication-mobile-cover,
    .profile-card .img-thumbnail,
    .badge-publication {
        transition: none;
    }

    .rounded-xl.shadow-sm:hover,
    .card.shadow-sm:hover,
    .publication-item .row:hover .publication-cover,
    .publication-mobile-item:hover .publication-mobile-cover,
    .profile-card .img-thumbnail:hover {
        transform: none;
    }

    .profile-card::before {
        animation: none;
    }
}