@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    color-scheme: light;
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-page: #ffffff;
    --color-surface: #ffffff;
    --color-surface-subtle: #f8fafc;
    --color-text-main: #0f172a;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-border-strong: #cbd5e1;
    --shadow-subtle: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.04);
    --content-width: 68rem;
    --reading-width: 60rem;
    --radius: 0.75rem;
}

:root.light {
    color-scheme: light;
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-page: #ffffff;
    --color-surface: #ffffff;
    --color-surface-subtle: #f8fafc;
    --color-text-main: #0f172a;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-border-strong: #cbd5e1;
    --shadow-subtle: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.04);
}

@media (prefers-color-scheme: dark) {
    :root:not(.light) {
        color-scheme: dark;
        --color-primary: #818cf8;
        --color-primary-hover: #a5b4fc;
        --color-page: #27272a;
        --color-surface: #27272a;
        --color-surface-subtle: #1e293b;
        --color-text-main: #f1f5f9;
        --color-text-muted: #a8b5c7;
        --color-border: rgba(148, 163, 184, 0.22);
        --color-border-strong: rgba(148, 163, 184, 0.38);
        --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.22), 0 8px 24px rgba(0, 0, 0, 0.16);
    }
}

:root.dark {
    color-scheme: dark;
    --color-primary: #818cf8;
    --color-primary-hover: #a5b4fc;
    --color-page: #27272a;
    --color-surface: #27272a;
    --color-surface-subtle: #1e293b;
    --color-text-main: #f1f5f9;
    --color-text-muted: #a8b5c7;
    --color-border: rgba(148, 163, 184, 0.22);
    --color-border-strong: rgba(148, 163, 184, 0.38);
    --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.22), 0 8px 24px rgba(0, 0, 0, 0.16);
}

html {
    background: var(--color-page);
}

body.site-body {
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
    letter-spacing: 0;
    color: var(--color-text-main);
    background: var(--color-page);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.dark body.site-body,
:root:not(.light) body.site-body {
    background: var(--color-page);
    color: var(--color-text-main);
}

body.site-body .container {
    width: 100%;
    max-width: var(--content-width);
    margin-inline: auto;
}

body.site-body a:hover {
    border-bottom-width: 0;
}

.site-main {
    min-height: calc(100vh - 10rem);
    padding: 2.5rem 1.25rem 4rem;
    font-size: 1rem;
    line-height: 1.7;
}

.is-inner .site-main {
    padding-top: 3rem;
}

.article {
    width: 100%;
    max-width: var(--reading-width);
    margin-inline: auto;
}

.section-publications .article,
.section-events .article {
    max-width: var(--content-width);
}

/* Header and navigation */
.site-header {
    position: relative;
    z-index: 40;
    border-top: 3px solid var(--color-primary);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-page);
}

.site-nav,
.nav-shell {
    min-height: 4.25rem;
}

.nav-shell {
    gap: 0.75rem 1.25rem;
}

.nav-main {
    min-width: 0;
    margin-block: 0;
}

.brand-title {
    display: inline-block;
    padding-block: 0.75rem;
    color: var(--color-text-main);
    background: none;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.025em;
    text-decoration: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    -webkit-text-fill-color: currentColor;
}

.brand-title:hover {
    color: var(--color-primary);
    opacity: 1;
}

.nav-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-list > li {
    margin: 0;
    padding: 0;
    border: 0;
    list-style: none;
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.2;
    text-decoration: none;
    white-space: nowrap;
    transition: color 150ms ease;
}

.nav-link:hover,
.nav-link[aria-current='page'] {
    color: var(--color-primary);
}

.nav-link[aria-current='page'] {
    font-weight: 700;
}

.nav-link::after {
    content: '';
    position: absolute;
    right: 0;
    bottom: 0.25rem;
    left: 0;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 150ms ease;
}

.nav-link:hover::after,
.nav-link[aria-current='page']::after {
    transform: scaleX(1);
}

.menu-toggle,
.theme-toggle {
    display: inline-flex;
    width: 2.75rem;
    min-width: 2.75rem;
    height: 2.75rem;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    color: var(--color-text-muted);
    background: var(--color-surface);
}

.menu-toggle:hover,
.theme-toggle:hover {
    color: var(--color-primary);
    border-color: var(--color-border-strong);
    background: var(--color-surface-subtle);
}

.theme-toggle img {
    width: 1.1rem;
    height: 1.1rem;
    margin: 0;
    padding: 0;
}

/* Profile */
.hero-grid {
    display: grid;
    grid-template-columns: 10.5rem minmax(0, 1fr);
    gap: 2.25rem;
    align-items: center;
    margin: 0 auto 3.5rem;
    padding: 2.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface-subtle);
    box-shadow: var(--shadow-subtle);
}

.profile-pic-container {
    width: 10.5rem;
    height: 10.5rem;
    margin: 0;
    position: relative;
}

.profile-img {
    width: 100%;
    height: 100%;
    margin: 0;
    object-fit: cover;
    border: 1px solid var(--color-border-strong);
    border-radius: 0.75rem;
    background: var(--color-surface);
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.1);
}

.profile-img:hover {
    transform: none;
}

.hero-content {
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    text-align: left;
}

.name-link {
    display: block;
    color: var(--color-text-main);
    text-decoration: none;
}

.name-link:hover {
    color: var(--color-primary);
    opacity: 1;
}

.profile-name {
    margin: 0 0 0.75rem;
    color: var(--color-text-main);
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.045em;
}

.profile-meta {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.profile-role {
    color: var(--color-text-main);
    font-weight: 600;
}

.profile-coordinator {
  color: var(--color-text-main);
  font-weight: 600;
}

.profile-affiliation {
    color: var(--color-text-muted);
}

.profile-contact {
    padding-top: 0.75rem;
}

.profile-contact a {
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: rgba(79, 70, 229, 0.42);
    text-decoration-color: color-mix(in srgb, var(--color-primary) 42%, transparent);
    text-underline-offset: 0.2em;
}

.social-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-start;
    margin-top: 1.25rem;
}

.social-link {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 0.45rem;
    color: var(--color-text-main);
    background: var(--color-surface);
    box-shadow: none;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 150ms ease, border-color 150ms ease, background-color 150ms ease;
}

.social-link:hover {
    color: var(--color-primary);
    border-color: var(--color-border-strong);
    background: var(--color-surface-subtle);
    transform: none;
    box-shadow: none;
}

/* Home publications */
.latest-research-section {
    padding: 0;
}

.section-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem 1.5rem;
    margin-bottom: 0;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid var(--color-border);
}

.section-title {
    margin: 0;
    color: var(--color-text-main);
    background: none;
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.025em;
    -webkit-background-clip: initial;
    background-clip: initial;
    -webkit-text-fill-color: currentColor;
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
}

.view-all-link:hover {
    color: var(--color-primary-hover);
}

.pub-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.pub-card {
    position: relative;
    display: grid;
    grid-template-columns: 4.25rem minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
    padding: 1.25rem 0.5rem;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    transition: background-color 150ms ease;
}

.pub-card:hover,
.pub-card:focus-within {
    border-color: var(--color-border);
    background: var(--color-surface-subtle);
    box-shadow: none;
    transform: none;
}

.pub-year {
    width: fit-content;
    min-width: 3.75rem;
    padding: 0.25rem 0.45rem;
    border-radius: 0.35rem;
    color: var(--color-primary);
    background: rgba(79, 70, 229, 0.09);
    background: color-mix(in srgb, var(--color-primary) 9%, transparent);
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.3;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.pub-card:hover .pub-year {
    color: var(--color-primary);
}

.pub-content {
    min-width: 0;
}

.pub-title {
    margin: 0 0 0.35rem;
    font-size: 1.025rem;
    font-weight: 600;
    line-height: 1.45;
}

.pub-title a {
    color: var(--color-text-main);
    background: none;
    padding: 0;
    text-decoration: none;
}

.pub-title a::before {
    content: none;
}

.pub-title a:hover {
    color: var(--color-primary);
}

.pub-authors {
    margin-bottom: 0.35rem;
    color: var(--color-text-muted);
    font-size: 0.925rem;
    line-height: 1.55;
}

.pub-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 1rem;
}

.pub-journal {
    color: var(--color-text-muted);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.pub-links {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.65rem;
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Page hierarchy */
.page-title {
    margin: 0 0 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-main);
    font-size: clamp(1.875rem, 4vw, 2.25rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.035em;
}

.page-heading-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.page-heading-row .page-title {
    margin: 0;
    padding: 0;
    border: 0;
}

.article-content {
    color: var(--color-text-main);
    font-size: 1rem;
    line-height: 1.72;
    overflow-wrap: anywhere;
}

.article-content p,
.article-content ul,
.article-content ol {
    margin-block: 1rem;
}

.article-content ul {
    padding-left: 1.35rem;
    list-style: disc;
}

.article-content ol {
    padding-left: 1.35rem;
    list-style: decimal;
}

.article-content li {
    margin-block: 0.35rem;
    list-style: inherit;
    line-height: 1.65;
}

.article-content a {
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: rgba(79, 70, 229, 0.42);
    text-decoration-color: color-mix(in srgb, var(--color-primary) 42%, transparent);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
}

.article-content a:hover {
    color: var(--color-primary-hover);
    text-decoration-color: currentColor;
}

.article-content h2 {
    display: block;
    margin: 2.75rem 0 1.1rem;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-main);
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.article-content h2::before {
    content: none;
}

.article-content h3 {
    margin: 2rem 0 0.75rem;
    color: var(--color-text-main);
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.4;
}

.article-content h4 {
    margin: 1.5rem 0 0.5rem;
    color: var(--color-text-main);
    font-size: 1rem;
    font-weight: 700;
}

.article-content hr {
    width: 100%;
    height: 1px;
    margin: 2.75rem 0;
    border: 0;
    background: var(--color-border);
}

/* Full publications */
.publication-list {
    display: flex;
    flex-direction: column;
    margin-bottom: 2rem;
}

.publication-entry {
    display: grid;
    grid-template-columns: 2.5rem minmax(0, 1fr);
    gap: 1.25rem;
    padding: 1.35rem 0;
    border-top: 1px solid var(--color-border);
}

.publication-entry:last-child {
    border-bottom: 1px solid var(--color-border);
}

.publication-entry:target {
    scroll-margin-top: 1rem;
    background: var(--color-surface-subtle);
}

.publication-number {
    padding-top: 0.15rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 700;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.publication-body {
    min-width: 0;
}

.publication-authors {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.55;
}

.publication-author-self {
    color: var(--color-text-main);
    font-weight: 700;
}

.article-content .publication-title {
    margin: 0.35rem 0;
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.45;
}

.article-content .publication-title a {
    color: var(--color-text-main);
    text-decoration: none;
}

.article-content .publication-title a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.publication-meta,
.publication-description {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.55;
}

.publication-actions {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.65rem;
    margin-left: 0.65rem;
    vertical-align: baseline;
}

.article-content .publication-link,
.publication-link {
    display: inline;
    min-height: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    color: var(--color-primary);
    background: transparent;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: inherit;
    text-decoration: underline;
    text-decoration-color: rgba(79, 70, 229, 0.42);
    text-decoration-color: color-mix(in srgb, var(--color-primary) 42%, transparent);
    text-underline-offset: 0.2em;
    overflow-wrap: anywhere;
    white-space: normal;
}

.article-content .publication-link:hover,
.publication-link:hover {
    color: var(--color-primary-hover);
    background: transparent;
    text-decoration-color: currentColor;
}

/* Students */
.student-grid {
    display: grid;
    grid-template-columns: minmax(12rem, 0.8fr) minmax(0, 1.6fr);
    gap: 0.65rem 2rem;
    align-items: baseline;
    margin-bottom: 2.25rem;
    font-size: 0.9375rem;
}

.student-name {
    color: var(--color-text-main);
    font-style: normal;
    font-weight: 600;
}

.student-info {
    min-width: 0;
    color: var(--color-text-muted);
    overflow-wrap: anywhere;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    background: var(--color-surface-subtle);
}

.site-footer-inner {
    padding: 1.5rem 1.25rem;
}

.site-footer-line {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.25rem 0.65rem;
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.55;
    text-align: center;
}

.site-footer-separator {
    color: var(--color-border-strong);
}

/* Focus and accessibility */
.skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 1000;
    padding: 0.65rem 1rem;
    border-radius: 0.45rem;
    color: #ffffff;
    background: #4f46e5;
    font-size: 0.875rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: var(--shadow-subtle);
    transform: translateY(calc(-100% - 1rem));
    transition: transform 150ms ease;
}

.skip-link:focus {
    transform: translateY(0);
}

a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: 0.25rem;
}

@media (max-width: 1023px) {
    .nav-shell {
        flex-wrap: wrap;
    }

    #menu-toggle {
        display: inline-flex !important;
        margin-left: auto;
    }

    #navbar-default {
        width: 100% !important;
        border-top: 1px solid var(--color-border);
    }

    #navbar-default.hidden {
        display: none !important;
    }

    #navbar-default:not(.hidden) {
        display: block !important;
    }

    .nav-list {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0;
        padding: 0.5rem 0 1rem;
        text-align: left;
    }

    .nav-list > li {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        padding-inline: 0.25rem;
    }

    .nav-link::after {
        right: auto;
        width: 2.5rem;
    }

    .theme-toggle {
        margin-top: 0.25rem;
    }
}

@media (min-width: 1024px) {
    #menu-toggle {
        display: none !important;
    }

    #navbar-default {
        display: block !important;
        width: auto !important;
    }

    .nav-list {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 1.35rem;
    }
}

@media (max-width: 767px) {
    .site-main,
    .is-inner .site-main {
        padding: 2rem 1rem 3rem;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem;
        text-align: center;
    }

    .profile-pic-container {
        width: 9rem;
        height: 9rem;
        margin-inline: auto;
    }

    .hero-content {
        align-items: center;
        text-align: center;
    }

    .profile-name {
        font-size: clamp(1.85rem, 9vw, 2.35rem);
    }

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

    .pub-card {
        grid-template-columns: 3.75rem minmax(0, 1fr);
        gap: 0.85rem;
        padding-inline: 0;
    }

}

@media (max-width: 639px) {
    .brand-title {
        max-width: calc(100vw - 6.5rem);
        overflow: hidden;
        font-size: 0.95rem;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .publication-entry {
        grid-template-columns: 1fr;
        gap: 0.35rem;
    }

    .publication-number {
        text-align: left;
    }

    .student-grid {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .student-name:not(:first-child) {
        margin-top: 0.85rem;
    }

    .site-footer-line {
        flex-direction: column;
        gap: 0.2rem;
    }

    .site-footer-separator {
        display: none;
    }
}

@media (max-width: 390px) {
    .nav-shell {
        padding-inline: 0.75rem;
    }

    .brand-title {
        font-size: 0.875rem;
    }

    .hero-grid {
        padding: 1.25rem;
    }

    .pub-card {
        grid-template-columns: 1fr;
        gap: 0.55rem;
    }

    .page-title {
        font-size: 1.75rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}

@media (forced-colors: active) {
    .site-header,
    .hero-grid,
    .social-link,
    .publication-link,
    .menu-toggle,
    .theme-toggle {
        border-color: CanvasText;
    }

    .profile-name,
    .brand-title,
    .section-title {
        color: CanvasText;
        -webkit-text-fill-color: CanvasText;
    }
}

@media print {
    .site-header,
    .site-footer,
    .social-flex,
    .skip-link {
        display: none !important;
    }

    body.site-body,
    .site-main,
    .hero-grid {
        color: #000000;
        background: #ffffff;
        box-shadow: none;
    }

    .site-main,
    .article {
        max-width: none;
        padding: 0;
    }
}