/* ==========================================================================
   BINTRACE — thème "trace binaire" : accents vert/ambre, police monospace
   pour les titres, barre de navigation en haut (pas de sidebar fixe),
   volontairement distinct du site LIP6.

   Thème clair par défaut ; thème sombre disponible via la bascule dans la
   nav (attribut data-theme="dark" sur <html>, mémorisé en localStorage —
   voir le script inline dans <head> et assets/js/main.js).
   ========================================================================== */

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

:root {
    /* Palette claire (par défaut) */
    --bg: #f4f6f8;
    --bg-elevated: #ffffff;
    --bg-elevated-2: #e8edf2;
    --border: #d7dee6;
    --text: #161b22;
    --text-muted: #57626f;
    --accent: #047857;
    --accent-dark: #065f46;
    --accent-ink: #ffffff;
    --accent-2: #b45309;
    --accent-2-ink: #ffffff;
    --accent-3: #6d28d9;
    --accent-3-ink: #ffffff;
    --danger: #dc2626;
    --topnav-bg: rgba(255, 255, 255, 0.85);
    --accent-soft: rgba(4, 120, 87, 0.1);
    --radius: 6px;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-width: 1380px;
}

/* Palette sombre, activée par le bouton de bascule dans la nav */
:root[data-theme="dark"] {
    --bg: #0b0f14;
    --bg-elevated: #121822;
    --bg-elevated-2: #1a2230;
    --border: #232c3a;
    --text: #e6edf3;
    --text-muted: #8b98a9;
    --accent: #34d399;
    --accent-dark: #10b981;
    --accent-ink: #06281c;
    --accent-2: #fbbf24;
    --accent-2-ink: #2b1c00;
    --accent-3: #a78bfa;
    --accent-3-ink: #1c1633;
    --danger: #f87171;
    --topnav-bg: rgba(18, 24, 34, 0.92);
    --accent-soft: rgba(52, 211, 153, 0.1);
}

/* Transition douce entre les deux thèmes lors du clic sur la bascule */
body, #topnav, .card, .news-item, .member-card, .tool-card, .job-offer,
.contact-card, #footer {
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    font-family: var(--sans);
    font-size: 12pt;
    color: var(--text);
    background-color: var(--bg);
    margin: 0;
    padding: 0;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--mono);
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0.6em 0 0.5em;
}

#main > h1 {
    font-size: 1.8em;
    margin-bottom: 0.8em;
}

h2 {
    font-size: 1.3em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--border);
}

p {
    margin: 0.5em 0;
    line-height: 1.55;
    color: var(--text);
    text-align: justify;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ul {
    padding-left: 1.2em;
}

.brand-prompt {
    color: var(--accent);
}

/* --- Logos avec repli (renderLogo) --- */
.logo-fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-elevated-2);
    border: 1px dashed var(--border);
    color: var(--accent);
    font-family: var(--mono);
    font-weight: 700;
    text-align: center;
    line-height: 1.1;
}

.logo-square {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    object-fit: cover;
}

.logo-square.logo-fallback {
    font-size: 0.8em;
    letter-spacing: 0.02em;
    border-style: solid;
}

.logo-rect {
    height: 44px;
    object-fit: contain;
}

.logo-rect.logo-fallback {
    height: auto;
    padding: 0.5em 1em;
    font-size: 0.95em;
    letter-spacing: 0.06em;
    border-radius: var(--radius);
}

.nav-logo {
    height: 75px;
}

.nav-logo-dark {
    display: none;
}

:root[data-theme="dark"] .nav-logo-light {
    display: none;
}

:root[data-theme="dark"] .nav-logo-dark {
    display: block;
}

/* --- Top navigation --- */
#topnav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--topnav-bg);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.topnav-inner {
    max-width: 1380px;
    margin: 0 auto;
    padding: 0.8em 1.5em;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1em;
    position: relative;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6em;
    font-family: var(--mono);
    font-weight: 700;
    font-size: 1.15em;
    color: var(--text);
    text-decoration: none;
}

.brand:hover {
    text-decoration: none;
}

.brand-name {
    letter-spacing: 0.02em;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius);
    padding: 0.4em 0.6em;
    font-size: 1.1em;
    cursor: pointer;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 1.5em;
    flex-wrap: wrap;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 0.2em;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

.main-nav ul li a {
    display: flex;
    align-items: center;
    gap: 0.4em;
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--mono);
    font-size: 0.85em;
    padding: 0.5em 0.7em;
    border-radius: var(--radius);
}

.main-nav ul li a i {
    font-size: 0.9em;
}

.main-nav ul li a:hover {
    color: var(--text);
    background-color: var(--bg-elevated-2);
    text-decoration: none;
}

.main-nav ul li a.active {
    color: var(--accent);
    background-color: var(--accent-soft);
}

.nav-lang {
    font-family: var(--mono);
    font-size: 0.85em;
}

.nav-lang a {
    color: var(--text-muted);
    margin: 0 0.15em;
}

.nav-lang a.active {
    color: var(--accent);
    font-weight: 700;
}

.nav-social a {
    color: var(--text-muted);
    margin-left: 0.6em;
    font-size: 1em;
}

.nav-social a:hover {
    color: var(--accent);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.9em;
    height: 1.9em;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1em;
    margin-left: 0.4em;
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

/* Page d'erreur (error.php) : carte centrée */
.error-main .card {
    text-align: center;
    max-width: 32em;
    margin: 2em auto 0;
}

.error-main .card h1 {
    font-size: 2.4em;
    color: var(--accent);
    margin-bottom: 0;
}

/* --- Layout --- */
#main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2em 1.5em 3em;
    flex: 1 0 auto;
    width: 100%;
}

.page-intro {
    color: var(--text-muted);
    max-width: 40em;
}

/* --- Hero (page d'accueil) --- */
.hero {
    text-align: center;
    padding: 3em 1em 2.5em;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2em;
}

.hero-acronym {
    font-family: var(--mono);
    font-size: 2.4em;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}

.hero-tagline {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 1.05em;
    margin-top: 0.6em;
    text-align: center;
}

.hero-actions {
    margin-top: 1.5em;
    display: flex;
    gap: 0.8em;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    font-family: var(--mono);
    font-size: 0.9em;
    padding: 0.6em 1.1em;
    border-radius: var(--radius);
    text-decoration: none;
    border: 1px solid transparent;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--accent-ink);
    font-weight: 700;
}

.btn-primary:hover {
    background-color: var(--accent-dark);
}

.btn-outline {
    border-color: var(--border);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* --- Cards --- */
.card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius);
    padding: 1.4em 1.6em;
    margin-bottom: 1em;
}

.card h2 {
    margin-top: 0;
}

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

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

.card ul li {
    margin-bottom: 0.3em;
}

.card-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1em;
    flex-direction: column;
}

.card-container.half {
    flex-direction: row;
    justify-content: space-between;
}

.card-half {
    flex: 1 1 48%;
    min-width: 260px;
    box-sizing: border-box;
}

/* --- Badges / keywords --- */
.badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
    padding: 0;
    margin: 0.8em 0 0;
    list-style: none;
}

.badge-list li {
    background-color: var(--bg-elevated-2);
    border: 1px solid var(--border);
    color: var(--accent);
    font-family: var(--mono);
    padding: 0.25em 0.7em;
    border-radius: 20px;
    font-size: 0.78em;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.objectives-list li {
    position: relative;
    padding-left: 1.6em;
    margin-bottom: 0.4em;
    line-height: 1.5;
}

.objectives-list li:before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
    font-family: var(--mono);
}

.funding-list {
    margin: 0;
}

.funding-list li {
    margin-bottom: 0.5em;
}

.funding-list strong {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.85em;
    text-transform: uppercase;
    display: block;
}

/* --- Contact --- */
.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1em;
}

.contact-card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2em;
    flex: 1 1 30%;
    text-align: center;
}

.contact-card p {
    text-align: center;
}

.contact-icon {
    font-size: 1.4em;
    color: var(--accent);
    margin-bottom: 0.5em;
    display: inline-block;
}

/* --- Buttons (liens d'action) --- */
.link-button, .slides-button, .poster-button, .bibtex-button {
    display: inline-flex;
    align-items: center;
    font-family: var(--mono);
    padding: 0.4em 0.8em;
    margin: 0.25em 0.3em 0.25em 0;
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 0.82em;
    border: 1px solid transparent;
}

.link-button i, .slides-button i, .poster-button i, .bibtex-button i {
    margin-right: 0.4em;
}

.link-button {
    background-color: var(--accent);
    color: var(--accent-ink) !important;
    font-weight: 600;
}

.link-button:hover {
    background-color: var(--accent-dark);
    text-decoration: none;
}

.slides-button {
    background-color: var(--accent-2);
    color: var(--accent-2-ink) !important;
    font-weight: 600;
}

.slides-button:hover {
    filter: brightness(0.88);
    text-decoration: none;
}

.poster-button {
    background-color: var(--accent-3);
    color: var(--accent-3-ink) !important;
    font-weight: 600;
}

.poster-button:hover {
    filter: brightness(0.88);
    text-decoration: none;
}

.bibtex-button {
    background-color: transparent;
    border-color: var(--border);
    color: var(--text-muted) !important;
}

.bibtex-button:hover {
    border-color: var(--accent);
    color: var(--accent) !important;
    text-decoration: none;
}

/* --- Publications --- */
.publications-list li {
    position: relative;
    padding: 0.9em 0 0.9em 1.6em;
    margin-bottom: 0.3em;
    border-bottom: 1px dashed var(--border);
    line-height: 1.5;
}

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

.publications-list li:before {
    content: '#';
    font-family: var(--mono);
    position: absolute;
    left: 0;
    top: 0.9em;
    color: var(--accent);
    font-weight: 700;
}

.pub-authors {
    color: var(--text);
}

.pub-status {
    background-color: var(--bg-elevated-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-family: var(--mono);
    padding: 0.3em 0.7em;
    margin: 0.25em 0.3em 0.25em 0;
    text-align: center;
    display: inline-flex;
    font-size: 0.78em;
    border-radius: 20px;
}

.pub-doi {
    font-style: italic;
    color: var(--text-muted);
    font-size: 0.8em;
}

.pub-links {
    margin-top: 0.5em;
    display: flex;
    flex-wrap: wrap;
    gap: 0.2em;
}

.pub-title {
    font-weight: 600;
    color: var(--text);
}

.pub-venue {
    color: var(--text-muted);
    font-style: italic;
}

/* --- News --- */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 1em;
}

.news-item {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4em 1.6em;
    display: flex;
    gap: 1.5em;
}

.news-date {
    flex: 0 0 7em;
    font-weight: 700;
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.9em;
}

.news-body h3 {
    margin: 0 0 0.3em;
    font-size: 1.05em;
}

.news-tag {
    display: inline-block;
    background-color: var(--bg-elevated-2);
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 0.15em 0.6em;
    border-radius: 10px;
    font-family: var(--mono);
    font-size: 0.7em;
    text-transform: uppercase;
    margin-bottom: 0.5em;
}

/* --- Team --- */
.team-category {
    margin-bottom: 2em;
}

.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1em;
}

.member-card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    border-top: 3px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4em;
    text-align: center;
}

.member-card p {
    text-align: center;
}

/* Membres permanents : léger repère visuel, sans étiquette affichée */
.member-card.is-permanent {
    border-top-color: var(--accent);
}

.member-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.35em;
    margin-bottom: 0.6em;
}

.member-badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.6em;
    text-transform: uppercase;
    padding: 0.2em 0.6em;
    border-radius: 20px;
    border: 1px solid transparent;
}

.member-badge-pi {
    background-color: var(--accent-soft);
    color: var(--accent-dark);
    border-color: var(--accent);
}

.member-badge-lead {
    background-color: var(--bg-elevated-2);
    color: var(--accent-2);
    border-color: var(--accent-2);
}

.member-photo, .member-photo-placeholder {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    margin: 0 auto 0.8em;
    object-fit: cover;
    display: block;
    border: 2px solid var(--border);
}

.member-photo-placeholder {
    background-color: var(--bg-elevated-2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.6em;
}

.member-card h3 {
    margin: 0 0 0.2em;
    font-size: 1em;
}

.member-role {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.8em;
    margin-bottom: 0.2em;
}

.member-affiliation {
    color: var(--text-muted);
    font-size: 0.85em;
    margin-bottom: 0.6em;
}

.member-links a {
    color: var(--text-muted);
    margin: 0 0.3em;
    font-size: 1.1em;
}

.member-links a:hover {
    color: var(--accent);
}

/* --- Tools --- */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1em;
}

.tool-card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent-3);
    border-radius: var(--radius);
    padding: 1.4em;
}

.tool-card h3 {
    margin: 0 0 0.3em;
}

.tool-tagline {
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 0.6em;
}

.tool-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
    margin-bottom: 0.8em;
}

.tool-meta span {
    background-color: var(--bg-elevated-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.15em 0.6em;
    border-radius: 10px;
    font-family: var(--mono);
    font-size: 0.72em;
}

.tool-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3em;
    margin-top: 0.8em;
}

/* --- Jobs --- */
.job-offer {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent-2);
    border-radius: var(--radius);
    padding: 1.5em 1.7em;
    margin-bottom: 1.3em;
}

.job-offer.closed-offer {
    border-left-color: var(--border);
    opacity: 0.7;
}

.job-offer h3 {
    margin-top: 0;
    margin-bottom: 0.6em;
    font-size: 1.1em;
}

.job-types {
    margin-bottom: 1em;
}

.job-type-badge {
    display: inline-block;
    background-color: var(--bg-elevated-2);
    border: 1px solid var(--border);
    color: var(--accent-2);
    font-family: var(--mono);
    padding: 0.25em 0.7em;
    border-radius: 20px;
    font-size: 0.75em;
    text-transform: uppercase;
    margin-right: 0.4em;
    margin-bottom: 0.3em;
}

.job-details p {
    margin-bottom: 0.7em;
}

.job-details ul {
    margin: 0.4em 0;
    padding-left: 1.4em;
}

.job-status {
    background-color: var(--bg-elevated-2);
    border: 1px solid var(--border);
    padding: 0.5em 0.8em;
    border-radius: var(--radius);
    margin-bottom: 1em;
    font-style: italic;
    color: var(--text-muted);
    font-size: 0.9em;
}

.job-links {
    border-top: 1px solid var(--border);
    padding-top: 1em;
    margin-top: 1em;
}

/* --- Footer --- */
#footer {
    border-top: 1px solid var(--border);
    background-color: var(--bg-elevated);
    padding: 2.5em 1.5em;
    margin-top: 2em;
    /* max-width: 1380px; */
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1.8em;
    text-align: center;
}

#footer p {
    text-align: center;
}

#footer .logo-rect {
    height: 50px;
    object-fit: contain;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1em;
}

.footer-logo {
    height: 50px;
    object-fit: contain;
    /* filter: grayscale(1) brightness(1.6) opacity(0.75); */
    /* transition: filter 0.2s, opacity 0.2s; */
}

.footer-logo:hover {
    filter: none;
    opacity: 1;
}

.footer-logo.logo-fallback {
    height: auto;
    padding: 0.5em 0.9em;
    font-size: 0.72em;
    filter: none;
    opacity: 1;
    border-radius: var(--radius);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.8em;
    margin: 0;
    width: 100%;
}

/* --- Responsive --- */
@media screen and (max-width: 900px) {
    .nav-toggle {
        display: inline-flex;
    }
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-elevated);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: stretch;
        padding: 1em 1.5em 1.5em;
        gap: 1em;
    }
    .main-nav.nav-open {
        display: flex;
    }
    .main-nav ul {
        flex-direction: column;
        gap: 0.2em;
    }
    .nav-lang, .nav-social {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .hero-acronym {
        font-size: 1.9em;
    }
    .card-half {
        flex: 1 1 100%;
    }
    .news-item {
        flex-direction: column;
        gap: 0.3em;
    }
}