/* ==========================================================================
   site.css — header (navigation + hero) refinement
   Loaded last so it wins over bootstrap + main.css without editing either.
   ========================================================================== */

:root {
    --ink: #16202a;
    --body-text: #46525e;
    --muted: #7b8794;
    --line: #e4e8eb;
    --accent: #a01c2e;
    --accent-dark: #7d1523;
    --surface: #ffffff;
    --page: #f4f5f7;
}

body {
    background-color: var(--page);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--body-text);
    -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------- navigation */
.site-header {
    background: rgba(255, 255, 255, .94);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 1px 3px rgba(16, 32, 48, .05);
}

.site-header .navbar {
    padding: .55rem 0;
    align-items: center;
}

/* brand ------------------------------------------------------------------- */
.site-brand,
.site-brand:hover,
.site-brand:focus {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    margin-right: auto;
}

.site-brand-name {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.12rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -.01em;
}

.site-brand-sub {
    font-size: .66rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .13em;
    color: var(--muted);
    margin-top: .16rem;
}

.site-brand:hover .site-brand-name {
    color: var(--accent);
}

/* menu -------------------------------------------------------------------- */
.site-menu {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 0;
    padding-left: 0;
    list-style: none;
}

.site-menu li {
    padding-left: 0;
}

.site-menu-link {
    position: relative;
    display: inline-block;
    padding: .45rem 0;
    margin-left: 1.45rem;
    font-size: .745rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .085em;
    color: var(--muted);
    text-decoration: none;
    border: 0;
    transition: color .18s ease;
    white-space: nowrap;
}

.site-menu-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -.1rem;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .22s ease;
}

.site-menu-link:hover,
.site-menu-link:focus {
    color: var(--ink);
    text-decoration: none;
    border: 0;
}

.site-menu-link:hover::after,
.site-menu-link:focus::after {
    transform: scaleX(1);
}

.site-menu li.is-active .site-menu-link {
    color: var(--ink);
}

.site-menu li.is-active .site-menu-link::after {
    transform: scaleX(1);
}

/* toggler ----------------------------------------------------------------- */
.site-header .navbar-toggler {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: .3rem .55rem;
    background: #fff;
    outline: none;
}

.site-header .navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='%2316202a' stroke-width='2.2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
    width: 1.4em;
    height: 1.4em;
}

@media (min-width: 992px) {
    .site-header .navbar-collapse {
        display: flex !important;
        flex-basis: auto;
        justify-content: flex-end;
    }

    .site-header .navbar-toggler {
        display: none;
    }
}

@media (max-width: 991px) {
    .site-menu {
        flex-direction: column;
        align-items: flex-start;
        padding: .5rem 0 .85rem;
        width: 100%;
    }

    .site-menu-link {
        margin-left: 0;
        padding: .55rem 0;
        font-size: .8rem;
        width: 100%;
    }

    .site-menu-link::after {
        display: none;
    }

    .site-menu li.is-active .site-menu-link {
        color: var(--accent);
    }
}

/* --------------------------------------------------------------------- hero */
.hero {
    margin-top: 2rem;
    margin-bottom: 2.25rem;
}

.hero-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 2.6rem 2.9rem;
    display: flex;
    align-items: center;
    gap: 2.75rem;
    box-shadow: 0 1px 2px rgba(16, 32, 48, .04),
                0 14px 34px -16px rgba(16, 32, 48, .18);
}

/* photo ------------------------------------------------------------------- */
.hero-photo {
    flex: 0 0 auto;
}

.hero-photo img {
    width: 208px;
    height: 208px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 22%;
    display: block;
    box-shadow: 0 0 0 1px var(--line),
                0 0 0 8px #fff,
                0 10px 26px -10px rgba(16, 32, 48, .35);
}

/* text -------------------------------------------------------------------- */
.hero-body {
    flex: 1 1 auto;
    min-width: 0;
}

.hero-eyebrow {
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--accent);
    margin: 0 0 .5rem;
}

.hero-name {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -.015em;
    color: var(--ink);
    margin: 0;
}

.hero-title {
    font-size: 1.06rem;
    font-weight: 500;
    color: var(--ink);
    margin: .6rem 0 0;
}

.hero-rule {
    width: 46px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    margin: 1.15rem 0;
}

.hero-meta {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: .92rem;
    line-height: 1.65;
}

.hero-meta li {
    position: relative;
    padding-left: 1rem;
}

.hero-meta li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .68em;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #c3cbd3;
}

.hero-meta .hero-meta-past {
    color: var(--muted);
}

/* research interest tags -------------------------------------------------- */
.hero-interests {
    margin-top: 1.4rem;
}

.hero-interests-label {
    display: block;
    font-size: .68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .13em;
    color: var(--muted);
    margin-bottom: .6rem;
}

.hero-tags {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
}

.hero-tags li {
    font-size: .78rem;
    font-weight: 500;
    color: var(--body-text);
    background: #f5f6f8;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .32rem .8rem;
    transition: color .18s ease, border-color .18s ease, background .18s ease;
}

.hero-tags li:hover {
    color: var(--accent);
    border-color: #e6c3c9;
    background: #fdf5f6;
}

/* actions ----------------------------------------------------------------- */
.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .6rem;
    margin-top: 1.7rem;
}

.hero-cv {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--accent);
    color: #fff !important;
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .07em;
    text-decoration: none;
    padding: .68rem 1.25rem;
    border-radius: 7px;
    border: 0;
    transition: background .18s ease, transform .18s ease, box-shadow .18s ease;
}

.hero-cv:hover,
.hero-cv:focus {
    background: var(--accent-dark);
    color: #fff !important;
    text-decoration: none;
    border: 0;
    transform: translateY(-1px);
    box-shadow: 0 8px 18px -8px rgba(160, 28, 46, .6);
}

.hero-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--line) !important;
    background: #fff;
    color: var(--body-text) !important;
    font-size: 1rem;
    text-decoration: none;
    transition: color .18s ease, background .18s ease, border-color .18s ease, transform .18s ease;
}

/* normalise the two icon fonts (Font Awesome + Academicons) to one optical size */
.hero-icon .fa,
.hero-icon .ai {
    line-height: 1;
}

.hero-icon .ai {
    font-size: 1.08rem;
}

.hero-icon:hover,
.hero-icon:focus {
    background: var(--accent);
    border-color: var(--accent) !important;
    color: #fff !important;
    text-decoration: none;
    transform: translateY(-1px);
}

/* responsive -------------------------------------------------------------- */
@media (max-width: 767px) {
    .hero {
        margin-top: 1.25rem;
    }

    .hero-card {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
        padding: 2rem 1.35rem;
        border-radius: 12px;
    }

    .hero-photo img {
        width: 152px;
        height: 152px;
        box-shadow: 0 0 0 1px var(--line),
                    0 0 0 6px #fff,
                    0 8px 20px -8px rgba(16, 32, 48, .35);
    }

    .hero-name {
        font-size: 1.9rem;
    }

    .hero-title {
        font-size: .98rem;
    }

    .hero-rule {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-meta {
        font-size: .87rem;
        text-align: left;
        display: inline-block;
    }

    .hero-tags,
    .hero-actions {
        justify-content: center;
    }
}

/* ------------------------------------------------------------------- footer */
.site-footer {
    background: #16202a;
    color: #a3aeb8;
    font-size: .9rem;
    margin-top: 3rem;
    padding: 3.1rem 0 0;
}

.site-footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.35fr;
    gap: 2.75rem;
    padding-bottom: 2.5rem;
}

.site-footer h2 {
    font-size: .68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .13em;
    color: #6f7b87;
    margin: 0 0 1.05rem;
}

/* identity column --------------------------------------------------------- */
.footer-name {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.22rem;
    font-weight: 600;
    color: #fff;
    margin: 0 0 .45rem;
    letter-spacing: -.01em;
}

.footer-tagline {
    margin: 0;
    line-height: 1.6;
    color: #96a1ac;
    max-width: 25rem;
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: 1.5rem;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .15) !important;
    color: #c3ccd4 !important;
    font-size: .95rem;
    text-decoration: none;
    transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}

.footer-social a .fa,
.footer-social a .ai {
    line-height: 1;
}

.footer-social a:hover,
.footer-social a:focus {
    background: var(--accent);
    border-color: var(--accent) !important;
    color: #fff !important;
    text-decoration: none;
    transform: translateY(-2px);
}

/* link column ------------------------------------------------------------- */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    line-height: 1;
}

.footer-links li + li {
    margin-top: .62rem;
}

.footer-links a {
    color: #a3aeb8 !important;
    text-decoration: none;
    border: 0 !important;
    font-size: .88rem;
    transition: color .16s ease, padding-left .16s ease;
}

.footer-links a:hover,
.footer-links a:focus {
    color: #fff !important;
    text-decoration: none;
    padding-left: .28rem;
}

/* contact column ---------------------------------------------------------- */
.footer-contact {
    line-height: 1.75;
}

.footer-contact a {
    color: #c3ccd4 !important;
    text-decoration: none;
    border: 0 !important;
    transition: color .16s ease;
}

.footer-contact a:hover,
.footer-contact a:focus {
    color: #fff !important;
    text-decoration: underline;
}

.footer-contact address {
    font-style: normal;
    margin: .7rem 0 0;
    color: #96a1ac;
}

/* bottom bar -------------------------------------------------------------- */
.site-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .09);
    padding: 1.15rem 0 1.3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: .8rem;
    color: #7c8894;
}

.site-footer-bottom p {
    margin: 0;
}

.footer-totop {
    color: #a3aeb8 !important;
    text-decoration: none;
    border: 0 !important;
    font-size: .74rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .09em;
    transition: color .16s ease;
}

.footer-totop:hover,
.footer-totop:focus {
    color: #fff !important;
    text-decoration: none;
}

/* floating back-to-top button, restyled to match --------------------------- */
.go-top {
    width: 42px;
    height: 42px;
    padding: 0 !important;
    display: none;
    align-items: center;
    justify-content: center;
    background: #16202a !important;
    color: #fff !important;
    border-radius: 50% !important;
    font-size: .95rem;
    box-shadow: 0 6px 18px -6px rgba(16, 32, 48, .6);
    margin-bottom: 0 !important;
    transition: background .18s ease, transform .18s ease;
}

.go-top:hover,
.go-top:focus {
    background: var(--accent) !important;
    color: #fff !important;
    text-decoration: none;
    transform: translateY(-2px);
}

@media (max-width: 991px) {
    .site-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .site-footer-grid .footer-col-identity {
        grid-column: 1 / -1;
    }
}

@media (max-width: 575px) {
    .site-footer {
        padding-top: 2.4rem;
        text-align: center;
    }

    .site-footer-grid {
        grid-template-columns: 1fr;
        gap: 1.9rem;
        padding-bottom: 2rem;
    }

    .footer-tagline {
        margin-left: auto;
        margin-right: auto;
    }

    .footer-social {
        justify-content: center;
    }

    .site-footer-bottom {
        justify-content: center;
        text-align: center;
    }
}

/* ------------------------------------------------------- section headings */
.body_des h4 {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.32rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -.01em;
    display: flex;
    align-items: center;
}

.body_des h4 img {
    height: 13px !important;
    margin-right: .55rem !important;
    margin-bottom: 0 !important;
    opacity: .8;
}

/* --------------------------------------------------------- photo gallery */
.gallery-frame {
    border-radius: 14px;
    overflow: hidden;
    background: #0d141b;
    box-shadow: 0 1px 2px rgba(16, 32, 48, .05),
                0 18px 40px -18px rgba(16, 32, 48, .35);
}

.gallery-frame .carousel-inner {
    border-radius: 14px;
}

.gallery-frame .carousel-item {
    position: relative;
}

.gallery-frame .carousel-item img {
    width: 100%;
    height: clamp(260px, 33vw, 520px) !important;
    object-fit: cover;
    display: block;
}

/* readable caption over any photo */
.gallery-frame .carousel-item::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 62%;
    background: linear-gradient(to top, rgba(8, 14, 20, .88) 0%, rgba(8, 14, 20, .45) 45%, rgba(8, 14, 20, 0) 100%);
    pointer-events: none;
}

.gallery-frame .carousel-caption {
    display: block !important;
    z-index: 2;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0 2.1rem 2.3rem;
    text-align: left;
    text-shadow: none;
}

.gallery-frame .carousel-caption h3 {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.28rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
    letter-spacing: -.01em;
}

/* indicators as slim bars ------------------------------------------------- */
.gallery-frame .carousel-indicators {
    z-index: 3;
    bottom: .85rem;
    margin: 0 2.1rem;
    justify-content: flex-start;
    align-items: center;
}

.gallery-frame .carousel-indicators li {
    width: 20px;
    height: 3px;
    border-radius: 2px;
    background: rgba(255, 255, 255, .38);
    border: 0;
    margin: 0 4px 0 0;
    opacity: 1;
    transition: background .2s ease, width .2s ease;
    cursor: pointer;
}

.gallery-frame .carousel-indicators li:hover {
    background: rgba(255, 255, 255, .7);
}

.gallery-frame .carousel-indicators li.active {
    background: #fff;
    width: 30px;
}

/* prev / next as circular buttons ---------------------------------------- */
.gallery-frame .carousel-control-prev,
.gallery-frame .carousel-control-next {
    width: 62px;
    opacity: 1;
    z-index: 3;
}

.gallery-ctrl-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(13, 20, 27, .45);
    border: 1px solid rgba(255, 255, 255, .28);
    color: #fff;
    font-size: 1.05rem;
    backdrop-filter: blur(4px);
    transition: background .18s ease, border-color .18s ease, transform .18s ease;
}

.gallery-frame a:hover .gallery-ctrl-icon,
.gallery-frame a:focus .gallery-ctrl-icon {
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.06);
}

@media (max-width: 575px) {
    .gallery-frame .carousel-caption {
        padding: 0 1.15rem 1.7rem;
    }

    .gallery-frame .carousel-caption h3 {
        font-size: 1.02rem;
    }

    .gallery-frame .carousel-indicators {
        margin: 0 1.15rem;
    }

    .gallery-ctrl-icon {
        width: 34px;
        height: 34px;
        font-size: .92rem;
    }
}

/* ------------------------------------------------------------- interests */
.interests-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: .85rem;
}

.interest-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 1.45rem .7rem 1.2rem;
    text-align: center;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.interest-card:hover {
    transform: translateY(-3px);
    border-color: #e6c3c9;
    box-shadow: 0 12px 24px -14px rgba(16, 32, 48, .3);
}

.interest-icon {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: #faf2f3;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto .85rem;
    transition: background .18s ease;
}

.interest-card:hover .interest-icon {
    background: #f4e2e5;
}

.interest-icon img {
    width: 21px;
    height: 21px !important;
    margin: 0 !important;
    opacity: .85;
}

.interest-card span {
    display: block;
    font-size: .74rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .09em;
    color: var(--ink);
}

@media (max-width: 991px) {
    .interests-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 479px) {
    .interests-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: .65rem;
    }
}

/* ----------------------------------------------------------- introduction */
.intro-text {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--body-text);
    max-width: 60rem;
    text-align: left;
}

.intro-text p {
    margin: 0 0 1.05rem;
}

.intro-text p:last-child {
    margin-bottom: 0;
}

.intro-text a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(160, 28, 46, .28);
    transition: border-color .18s ease, color .18s ease;
}

.intro-text a:hover,
.intro-text a:focus {
    color: var(--accent-dark);
    border-bottom-color: var(--accent);
    text-decoration: none;
}

/* ------------------------------------------------------------- education */
.edu-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.edu-card {
    display: flex;
    gap: 1.65rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 1.65rem 1.8rem;
    transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
}

.edu-card:hover {
    transform: translateY(-2px);
    border-color: #dde3e8;
    box-shadow: 0 14px 30px -18px rgba(16, 32, 48, .3);
}

.edu-logo {
    flex: 0 0 92px;
    width: 92px;
    height: 92px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: .6rem;
}

.edu-logo img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto !important;
    object-fit: contain;
}

.edu-body {
    flex: 1 1 auto;
    min-width: 0;
}

.edu-degree {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.16rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -.01em;
    margin: 0;
}

.edu-school {
    font-size: .95rem;
    color: var(--body-text);
    margin: .28rem 0 0;
}

.edu-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
    margin-top: .9rem;
}

.edu-period,
.edu-grade {
    font-size: .715rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    border-radius: 999px;
    padding: .32rem .72rem;
    white-space: nowrap;
}

.edu-period {
    background: #f5f6f8;
    border: 1px solid var(--line);
    color: var(--muted);
}

.edu-grade {
    background: #faf2f3;
    border: 1px solid #eed4d9;
    color: var(--accent);
}

.edu-detail {
    margin-top: 1.05rem;
    font-size: .92rem;
    line-height: 1.7;
    color: var(--body-text);
}

.edu-label {
    display: block;
    font-size: .655rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--muted);
    margin-bottom: .28rem;
}

.edu-courses {
    list-style: none;
    padding: 0;
    margin: .5rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
}

.edu-courses li {
    font-size: .745rem;
    line-height: 1.45;
    color: var(--body-text);
    background: #f5f6f8;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: .3rem .62rem;
}

@media (max-width: 575px) {
    .edu-card {
        flex-direction: column;
        gap: 1.1rem;
        padding: 1.35rem 1.15rem;
    }

    .edu-logo {
        flex: 0 0 72px;
        width: 72px;
        height: 72px;
    }
}

/* ------------------------------------------------------------ experience */
.exp-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.exp-card {
    display: flex;
    gap: 1.65rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 1.65rem 1.8rem;
    transition: box-shadow .18s ease, border-color .18s ease;
}

.exp-card:hover {
    border-color: #dde3e8;
    box-shadow: 0 14px 30px -18px rgba(16, 32, 48, .3);
}

.exp-logo {
    flex: 0 0 84px;
    width: 84px;
    height: 84px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: .55rem;
}

.exp-logo img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto !important;
    object-fit: contain;
}

.exp-body {
    flex: 1 1 auto;
    min-width: 0;
}

.exp-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.exp-role {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.16rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -.01em;
    margin: 0;
}

.exp-period {
    font-size: .715rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--muted);
    background: #f5f6f8;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .3rem .72rem;
    white-space: nowrap;
}

.exp-org {
    font-size: .95rem;
    color: var(--body-text);
    margin: .3rem 0 0;
}

.exp-badges {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: .75rem;
}

.exp-badge {
    font-size: .68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    border-radius: 999px;
    padding: .3rem .7rem;
    background: #faf2f3;
    border: 1px solid #eed4d9;
    color: var(--accent);
}

.exp-block {
    margin-top: 1.15rem;
}

.exp-label {
    display: block;
    font-size: .655rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--muted);
    margin-bottom: .5rem;
}

/* course rows ------------------------------------------------------------ */
.exp-courses {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--line);
}

.exp-courses li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    padding: .62rem 0;
    border-bottom: 1px solid var(--line);
    font-size: .9rem;
}

.exp-course-name {
    color: var(--ink);
    min-width: 0;
}

.exp-course-name a {
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid rgba(22, 32, 42, .18);
    transition: color .16s ease, border-color .16s ease;
}

.exp-course-name a:hover,
.exp-course-name a:focus {
    color: var(--accent);
    border-bottom-color: var(--accent);
    text-decoration: none;
}

.exp-course-code {
    font-weight: 600;
}

.exp-course-note {
    display: block;
    font-size: .8rem;
    color: var(--muted);
    margin-top: .18rem;
}

.exp-course-note a {
    color: var(--muted);
    border-bottom: 1px solid rgba(123, 135, 148, .35);
    text-decoration: none;
}

.exp-course-note a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.exp-terms {
    font-size: .715rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--muted);
    white-space: nowrap;
}

/* bullets ---------------------------------------------------------------- */
.exp-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: .92rem;
    line-height: 1.7;
}

.exp-bullets li {
    position: relative;
    padding-left: 1.05rem;
    margin-bottom: .38rem;
}

.exp-bullets li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .66em;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #c3cbd3;
}

.exp-bullets li:last-child {
    margin-bottom: 0;
}

/* skill chips ----------------------------------------------------------- */
.exp-tags {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
}

.exp-tags li {
    font-size: .745rem;
    color: var(--body-text);
    background: #f5f6f8;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: .3rem .62rem;
}

@media (max-width: 575px) {
    .exp-card {
        flex-direction: column;
        gap: 1.1rem;
        padding: 1.35rem 1.15rem;
    }

    .exp-logo {
        flex: 0 0 68px;
        width: 68px;
        height: 68px;
    }

    .exp-courses li {
        flex-direction: column;
        gap: .25rem;
    }
}

/* --------------------------------------------------------------- projects */
.proj-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.proj-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 1.6rem 1.8rem;
    transition: box-shadow .18s ease, border-color .18s ease;
}

.proj-card:hover {
    border-color: #dde3e8;
    box-shadow: 0 14px 30px -18px rgba(16, 32, 48, .3);
}

.proj-card-featured {
    border-color: #e6c3c9;
    box-shadow: 0 1px 2px rgba(16, 32, 48, .04),
                0 16px 34px -20px rgba(160, 28, 46, .28);
}

.proj-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.05rem;
}

.proj-title {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.14rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -.01em;
    margin: 0;
}

.proj-links {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.proj-link {
    display: inline-flex;
    align-items: center;
    gap: .38rem;
    font-size: .705rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .07em;
    padding: .34rem .72rem;
    border-radius: 999px;
    background: #f5f6f8;
    border: 1px solid var(--line) !important;
    color: var(--body-text) !important;
    text-decoration: none;
    white-space: nowrap;
    transition: background .18s ease, border-color .18s ease, color .18s ease;
}

.proj-link:hover,
.proj-link:focus {
    background: var(--accent);
    border-color: var(--accent) !important;
    color: #fff !important;
    text-decoration: none;
}

.proj-link-demo {
    background: #faf2f3;
    border-color: #eed4d9 !important;
    color: var(--accent) !important;
}

/* figures ---------------------------------------------------------------- */
.proj-figures {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.35rem;
}

.proj-figure {
    margin: 0;
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}

.proj-figure img {
    width: 100%;
    height: auto !important;
    display: block;
}

.proj-figure figcaption {
    font-size: .735rem;
    color: var(--muted);
    text-align: center;
    padding: .6rem .85rem;
    border-top: 1px solid var(--line);
    background: #fafbfc;
}

@media (max-width: 767px) {
    .proj-figures {
        grid-template-columns: 1fr;
    }

    .proj-card {
        padding: 1.35rem 1.15rem;
    }
}

.exp-bullets code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .85em;
    background: #f5f6f8;
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: .06rem .3rem;
    color: var(--ink);
}

/* --------------------------------------------------------- certifications */
.cert-grid {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
}

.cert-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
}

.cert-card:hover {
    transform: translateY(-2px);
    border-color: #dde3e8;
    box-shadow: 0 14px 30px -18px rgba(16, 32, 48, .3);
}

.cert-thumb {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 224px;
    padding: .9rem;
    background: #fafbfc;
    border-bottom: 1px solid var(--line);
    border: 0;
}

.cert-thumb img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto !important;
    object-fit: contain;
    transition: transform .25s ease;
}

.cert-card:hover .cert-thumb img {
    transform: scale(1.02);
}

.cert-body {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    padding: 1.15rem 1.35rem 1.25rem;
}

.cert-title {
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.35;
    letter-spacing: -.01em;
    margin: 0;
}

.cert-issuer {
    font-size: .86rem;
    color: var(--muted);
    margin: .38rem 0 0;
}

.cert-issuer a {
    color: var(--body-text);
    text-decoration: none;
    border-bottom: 1px solid rgba(70, 82, 94, .25);
    transition: color .16s ease, border-color .16s ease;
}

.cert-issuer a:hover,
.cert-issuer a:focus {
    color: var(--accent);
    border-bottom-color: var(--accent);
    text-decoration: none;
}

.cert-foot {
    margin-top: auto;
    padding-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .6rem;
    flex-wrap: wrap;
}

.cert-date {
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .09em;
    color: var(--muted);
}

.cert-verify {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .07em;
    padding: .32rem .7rem;
    border-radius: 999px;
    background: #faf2f3;
    border: 1px solid #eed4d9 !important;
    color: var(--accent) !important;
    text-decoration: none;
    transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.cert-verify:hover,
.cert-verify:focus {
    background: var(--accent);
    border-color: var(--accent) !important;
    color: #fff !important;
    text-decoration: none;
}

@media (max-width: 767px) {
    .cert-grid {
        grid-template-columns: 1fr;
    }

    .cert-thumb {
        height: 190px;
    }
}

/* ----------------------------------------------------------- publications */
.pub-authors {
    font-size: .88rem;
    color: var(--muted);
    line-height: 1.6;
    margin: .45rem 0 0;
}

.pub-me {
    font-weight: 600;
    color: var(--ink);
}

.pub-venue {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    border-radius: 999px;
    padding: .3rem .7rem;
    background: #faf2f3;
    border: 1px solid #eed4d9;
    color: var(--accent);
    margin-top: .75rem;
}

.research-lead {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--body-text);
    max-width: 60rem;
    margin: 0 0 .4rem;
}

.research-lead a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(160, 28, 46, .28);
    transition: border-color .18s ease, color .18s ease;
}

.research-lead a:hover {
    color: var(--accent-dark);
    border-bottom-color: var(--accent);
}

/* ------------------------------------------------------ poster / figure */
.poster-figure {
    margin: 1.25rem 0 0;
    max-width: 520px;
}

.poster-figure a {
    display: block;
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    background: #fafbfc;
}

.poster-figure img {
    width: 100%;
    height: auto !important;
    display: block;
    transition: transform .25s ease;
}

.poster-figure a:hover img {
    transform: scale(1.015);
}

.poster-figure figcaption {
    font-size: .735rem;
    color: var(--muted);
    padding: .55rem .1rem 0;
}

/* ------------------------------------------------------------------ skills */
.skill-grid {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem;
}

.skill-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 1.4rem 1.55rem 1.5rem;
    transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
}

.skill-card:hover {
    transform: translateY(-2px);
    border-color: #dde3e8;
    box-shadow: 0 14px 30px -18px rgba(16, 32, 48, .3);
}

.skill-title {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.04rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -.01em;
    margin: 0 0 .9rem;
}

.skill-title i {
    color: var(--accent);
    font-size: .92rem;
    width: 1.1rem;
    text-align: center;
}

@media (max-width: 767px) {
    .skill-grid {
        grid-template-columns: 1fr;
    }

    .skill-card {
        padding: 1.25rem 1.15rem 1.35rem;
    }
}

/* portrait slides: show the whole photo instead of cropping it to a strip */
.gallery-frame .carousel-item.is-portrait img {
    object-fit: contain;
    background: #0d141b;
}

/* research projects: method stepper, results chart, figure lightbox ------------ */
.proj-note {
    color: var(--muted);
    font-size: .9em;
}

.proj-figures-single {
    grid-template-columns: minmax(0, 440px);
    justify-content: center;
}

.proj-figure img {
    cursor: zoom-in;
}

.proj-steps {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin: .55rem 0 .7rem;
}

.proj-step {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    font-size: .8rem;
    font-weight: 600;
    padding: .38rem .8rem .38rem .4rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #f5f6f8;
    color: var(--body-text);
    cursor: pointer;
    transition: background .18s ease, border-color .18s ease, color .18s ease;
}

.proj-step span {
    display: inline-grid;
    place-items: center;
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 50%;
    background: #fff;
    border: 1px solid var(--line);
    font-size: .7rem;
}

.proj-step:hover,
.proj-step:focus-visible {
    border-color: #eed4d9;
    color: var(--accent);
}

.proj-step.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.proj-step.is-active span {
    color: var(--accent);
    border-color: #fff;
}

.proj-panel {
    background: #fafbfc;
    border: 1px solid var(--line);
    border-left: 3px solid var(--accent);
    border-radius: 8px;
    padding: .9rem 1.1rem;
    min-height: 5.2rem;
}

.proj-detail {
    display: none;
    font-size: .92rem;
}

.proj-detail.is-active {
    display: block;
    animation: proj-fade .25s ease;
}

.proj-detail p {
    margin: 0 0 .5rem;
}

.proj-detail p:last-child {
    margin-bottom: 0;
}

@keyframes proj-fade {
    from { opacity: 0; transform: translateY(3px); }
    to { opacity: 1; transform: none; }
}

.proj-chips {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
}

.proj-chips li {
    font-size: .78rem;
    padding: .22rem .6rem;
    border-radius: 6px;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--ink);
    overflow-wrap: anywhere;
}

.proj-results {
    margin-top: 1.35rem;
}

.proj-results-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem .8rem;
    margin-bottom: .8rem;
}

.proj-results-head .exp-label {
    margin-bottom: 0;
    margin-right: auto;
}

.proj-toggle {
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 999px;
    overflow: hidden;
    background: #f5f6f8;
}

.proj-toggle button {
    border: 0;
    background: transparent;
    font-size: .72rem;
    font-weight: 600;
    padding: .3rem .65rem;
    color: var(--body-text);
    cursor: pointer;
}

.proj-toggle button.is-active {
    background: var(--accent);
    color: #fff;
}

.proj-toggle button:disabled {
    opacity: .4;
    cursor: not-allowed;
}

.proj-bar {
    display: grid;
    grid-template-columns: minmax(0, 15rem) minmax(0, 1fr) 2.6rem;
    align-items: center;
    gap: .75rem;
    font-size: .8rem;
    margin-bottom: .45rem;
}

.proj-bar-name {
    overflow-wrap: anywhere;
}

.proj-bar-track {
    height: .7rem;
    border-radius: 999px;
    background: #eef1f3;
    overflow: hidden;
}

.proj-bar-fill {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: #b9c2cb;
    transition: width .45s ease;
}

.proj-bar-val {
    font-variant-numeric: tabular-nums;
    text-align: right;
    color: var(--ink);
}

.proj-bar.is-ours {
    font-weight: 600;
    color: var(--ink);
}

.proj-bar.is-ours .proj-bar-fill {
    background: var(--accent);
}

.proj-axis-note {
    font-size: .72rem;
    color: var(--muted);
    margin: .3rem 0 0;
}

.proj-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(16, 24, 32, .82);
    display: grid;
    place-items: center;
    padding: 16px;
    cursor: zoom-out;
}

.proj-lightbox img {
    max-width: 100%;
    max-height: 90vh;
    background: #fff;
    border-radius: 8px;
    padding: .5rem;
}

@media (max-width: 575px) {
    .proj-bar {
        grid-template-columns: minmax(0, 1fr) 2.6rem;
    }

    .proj-bar-name {
        grid-column: 1 / -1;
        margin-bottom: -.3rem;
    }
}

.exp-bullets + .exp-label {
    margin-top: 1.2rem;
}

.proj-stats {
    list-style: none;
    padding: 0;
    margin: 1.2rem 0 1.3rem;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .6rem;
}

.proj-stats li {
    background: #fafbfc;
    border: 1px solid var(--line);
    border-top: 3px solid var(--accent);
    border-radius: 8px;
    padding: .7rem .8rem;
}

.proj-stats strong {
    display: block;
    font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
    font-size: 1.45rem;
    line-height: 1.1;
    color: var(--ink);
}

.proj-stats span {
    font-size: .74rem;
    color: var(--muted);
}

.proj-finding {
    font-size: .85rem;
    margin: .7rem 0 0;
}

@media (max-width: 767px) {
    .proj-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.proj-stats,
.proj-panel,
.proj-finding,
.proj-axis-note {
    text-align: left;
}

.proj-figures {
    align-items: start;
}