* {margin: 0;}

.btn { 
    display: inline-block;
    padding: 5px 25px;
    border: 1.5px solid #f1f1f1;
    color: #f1f1f1;
    border-radius: 100px;
    text-decoration: none;
    font-family: "polymath", sans-serif;
    transition: 0.3s ease; }

.btn:hover {
    transition: 0.2s ease;
    background-color: #f1f1f1;
    color: #0d0d0d ;
    font-weight: 350;
    border: 0px;}

.batn {
    position: relative;
    color: #f1f1f1;
    background: none;
    overflow: visible;
}

.batn::before {
    display: none !important;
    font-weight: 900;
}

.batn::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    z-index: -1;
    opacity: 0;
    pointer-events: none;
    font-weight: 900;
}

.batn:hover {
    color: #ffffff !important;
    background-color: transparent !important;
    font-weight: 900;
    text-shadow:   /* halo blanc */
        2.5px 0 rgba(255, 0, 0, 0.8),
       -2.5px 0 rgba(0, 255, 255, 0.8),
       0 2.5px rgba(231, 197, 0, 0.959);
    animation: chroma-flicker 0.6s infinite alternate;
}

@keyframes chroma-flicker {
    0% {font-weight: 900;
        text-shadow:
            2px 0 rgba(255, 0, 0, 0.6),
           -2.5px 0 rgba(0, 255, 255, 0.8),
           -3.5px 0 rgba(0, 17, 255, 0.8),
             0 2.5px rgba(231, 197, 0, 0.959);
    }
    100% {font-weight: 900;
        text-shadow:
            2px 0 rgba(221, 26, 0, 0.9),
           -2.5px 0 rgba(0, 217, 255, 0.8),
           -3.5px 0 rgba(0, 17, 255, 0.8),
            0 2.5px rgba(231, 197, 0, 0.959);
    }
}

.submenu-interview-global {
    position: fixed;
    top: 0; 
    left: 0;
    width: 100%;
    padding-top: 100px; 
    padding-bottom: 40px;

    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: flex-start; padding-left: 2%;

    background-color: rgba(0, 0, 0, 0.5); 
    background-image: linear-gradient(to right, 
        rgba(13, 13, 13, 0.2), rgba(20, 67, 255, 0.2),
        rgba(40, 230, 255, 0.2), rgba(255, 255, 255, 0.2),
        rgba(255, 217, 0, 0.2), rgba(223, 2, 2, 0.2),
        rgba(13, 13, 13, 0.2)
    );
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);

    border-bottom: 1px solid rgba(255, 255, 255, 0.1);

    z-index: 1500; 
    opacity: 0;
    pointer-events: none;
    transform: translateY(-100%); 
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.submenu-interview-global.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}


.submenu-interview-global a {
    color: #f0f0f0;
    text-decoration: none;
    font-family: "polymath", sans-serif;
    font-size: 16px;
    font-weight: 200;
    letter-spacing: 1px; 
    transition: color 0.3s ease, transform 0.2s ease;
}

.submenu-interview-global a:hover {
    color: #000000;
    
    font-weight: 500;
    transform: translateX(5px); 
}

body {
    padding: 0;
    font-family: "polymath", sans-serif;
    font-optical-sizing: auto;
    font-weight: 300;
    font-style: normal;
    color: #f0f0f0;
    position: relative;
    z-index: 1;
}

.hero-media video {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    display: block;
    border-right: 0.01px dashed #f1f1f1;

    -webkit-mask-image: 
        linear-gradient(to left, black 70%, transparent 100%),
        linear-gradient(to bottom, black 70%, transparent 100%);
    -webkit-mask-composite: intersect;

    mask-image:
        linear-gradient(to left, transparent 0%, black 30%),
        linear-gradient(to bottom, black 70%, transparent 100%);
    mask-composite: intersect;
}


.hero-layout {
    display: grid;
    grid-template-columns: 40% 60%;
    min-height: 100vh;
    position: relative;
}

.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    z-index: 800;
}

.hero-media {
    position: absolute;
    inset: 0;
}


.marge-abstract {
    grid-column: 1;
    padding-top: 15%;
    padding-left: 20%;
    padding-right: 20%;
}

.marge-introview{
    grid-column: 1;
    padding-top: 20%;
    padding-left: 10px;
    padding-right: 250px;
}

.marge-etude{
    grid-column: 1;
    padding-top: 15%; 
    padding-left: 10px;
    padding-right: 250px;
}

.interview-row {
    grid-column: span 12; 
    display: grid;
    grid-template-columns: repeat(12, 1fr); 
    column-gap: 30px;
    margin-bottom: 48px; 
    align-items: start;
}

.interview-label {
    grid-column: span 4;
}

.interview-label h2 {
    font-size: 14px; 
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.6;
    margin-top: 5px;
    padding-top: 10px;
    
    border-top: 1px solid;
    border-image-source: linear-gradient(to right, #f1f1f1, #28e6ff, #1443ff); 
    border-image-slice: 1;

    background: linear-gradient(to right,#f1f1f1, #28e6ff, #1443ff);
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
    background-clip: text;
}
.intervention {
    margin-left: 15%; 
    background: linear-gradient(to right,#f1f1f1, #28e6ff);
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
    background-clip: text;
}

.interview-content {
    grid-column: span 8;
}

.interview-content p {
    font-size: 18px; 
    line-height: 1.6;
    margin-bottom: 0;
}

.interview-row.question .interview-content p {
    font-style: italic;
    font-weight: 200;
    color: #f1f1f1;
}

strong {font-weight: 700;}

h1 {
    font-weight: 900;
    font-size: 32px;
    margin-top: 64px;
    margin-bottom: 40px;
    color: #f0f0f0;
}
html, body { background-color: #0d0d0d;
scroll-behavior: smooth;}
h2 {
    font-weight: 700;
    font-size: 24px;
    margin-top: 32px;
    margin-bottom: 8px;
    color: #f1f1f1;
}
h3 {font-weight: 200;
    font-size:18pt;
    margin-top: 24px;
    margin-bottom: 8px;
    color: #f1f1f1;
}

h4 {font-size:20px;
    margin-top: 24px;
    margin-bottom: 8px;
    color: #f1f1f1;}

h5 {font-size:16px;
    margin-bottom: 12px;
    font-weight: 400;
    color: #f1f1f1;}

ul { list-style: none; padding: 0; }

ul li { margin-bottom: 8px; font-size: 14px; opacity: 0.8; }

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    overflow: visible; 
    z-index: 2000;
    background-color: rgba(0,0,0,0.6);
    background-image: linear-gradient(to right, 
    rgba(13, 13, 13, 0.2),
  rgba(20, 67, 255, 0.2),
  rgba(40, 230, 255, 0.2),
  rgba(255, 255, 255, 0.2),
  rgba(255, 217, 0, 0.2),
  rgba(223, 2, 2, 0.2),
  rgba(13, 13, 13, 0.2)
);
    backdrop-filter: blur(6px);

    transition:
        transform 0.4s ease,
        padding 0.35s ease,
        background-color 0.35s ease,
        background-image 0.35s ease;
    overflow: hidden;
}

.nav-container {
    max-width: 1450px;
    margin: 0 0px;
    padding: 12px 22px;

    display: grid;
    grid-template-columns: auto 1fr auto; /* ⭐ CLÉ */
    align-items: center;
    column-gap: 48px;
}

.nav-main {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-main a {
    font-size: 12pt;
    font-weight: 100;
    letter-spacing: 0.04em;
}

.navbar.is-top {
    padding: 0px 0; 
    background-image: url("img/ton-background-header.png");
    background-color: transparent;
}

.navbar.is-scrolled {
    padding: 0px 0;
    background-image: linear-gradient(to right, 
    rgba(13, 13, 13, 0.2),
  rgba(20, 67, 255, 0.2),
  rgba(40, 230, 255, 0.2),
  rgba(255, 255, 255, 0.2),
  rgba(255, 217, 0, 0.2),
  rgba(223, 2, 2, 0.2),
  rgba(13, 13, 13, 0.2)
);
    background-color: rgba(0, 0, 0, 0.65);
}

.navbar.is-hidden {
    transform: translateY(-100%);
    background-image: none;
    background-color: transparent;
}

.navbar.is-scrolled .logo {
    font-size: 22px;
}

.navbar::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url("img/ton-background-header.png");
    background-size: cover;
    background-position: center;
    opacity: 1;
    transition: opacity 0.5s ease; 
    z-index: -1;
}

.header {
    grid-column: 1 / -1; 
    display: flex;
    gap: 60px;
    align-items: center; 
    margin-bottom: 60px;
    width: 100%;
}

.header-text {
    flex: 0 0 58%; 
    text-align: justify;
}

.header .media-column {
    flex: 0 0 40%;
    padding-left: 40px;
    border-left: 1px solid;
    border-image: linear-gradient(to bottom, 
        rgba(241, 241, 241, 0), 
        rgba(241, 241, 241, 1) 10%, 
        rgba(241, 241, 241, 1) 90%, 
        rgba(241, 241, 241, 0)
    ) 1;
}

.navbar.is-scrolled::before,
.navbar.is-hidden::before {
    opacity: 0;
}

.logo { 
    font-family: "polymath", sans-serif;
    font-weight: 900;
    font-style: italic;
    font-size: 50px;
    color: #f1f1f1;

    transform: scale(1);
    transform-origin: left center;

    transition:
        transform 0.35s ease,
        font-size 0.35s ease,
        opacity 0.25s ease;
} 

.btn-link {
    display: inline-block; 
    transition: all 0.3s ease;
    text-decoration: 1px solid;
}

.btn-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: #ffffff; 
}

a:not(.btn) {
    position: relative;
    overflow: hidden;
    z-index: 1;
    color: #f1f1f1;
    text-decoration: none;
}

a:not(.btn)::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: #f1f1f1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: -1;
    font-weight: 350;
}

a:not(.btn):hover::before {
    transform: scaleX(1);
}

a:not(.btn):hover {
    font-weight: 350;
    color: #000000;
}

.container-intro {
    max-width: 1450px; 
    margin: 0 auto; 
    padding-left: 0px;
    padding-right: 22px;
    z-index: 5;
}

.container {
    max-width: 1450px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 17%;
    padding-right:17%;
    padding-bottom: 10%;
    padding-top: 10%;
    box-sizing: border-box;
}


.bobine_de_fil {
    border-left: 5px dashed rgba(255, 255, 255, 4);
    margin-top: 20px;} 

.grid-composition {
    display: grid;
    grid-template-columns: repeat(12, 1fr); 
    column-gap: 30px;
    padding: 0;
    gap: 16px; 
    position: relative;
} 

.note {
    text-decoration: none; 
    font-size: 12px;
    vertical-align: super;
    font-weight: 700;
    color: #4043f5;
}

.main-content {
    grid-column: 1 / -1;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 0;
    padding-right: 0;
}

.intro-section {
    max-width: 60ch;
    width: 100%;
    margin-bottom: 60px;
}

.article-body {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin-bottom: 60px;
}

.text-column {
    flex: 0 0 65%;
    text-align: justify;
}

.media-column {
    flex: 0 0 30%;
    position: sticky;
    top: 100px;
}

.media-item img {
    width: 100%;
    height: auto;
}

.caption {
    font-size: 0.85rem;
    color: #a0a0a0;
    margin-top: 10px;
    font-style: italic;
}

.page-article .article-body {
    display: flex;
    gap: 50px;
    align-items: flex-start;
}

.page-article .text-column {
    flex: 0 0 55%; 
}

.page-article .media-column {
    flex: 0 0 40%;
}

.page-article .media-item img {
    width: 100%;
    height: auto;
    display: block;
}

.article-body:not(.is-reversed) .media-column {
    padding-left: 40px;
    border-left: 1px solid;
    border-image: linear-gradient(to bottom, 
        rgba(241, 241, 241, 0), 
        rgba(241, 241, 241, 1) 10%, 
        rgba(241, 241, 241, 1) 90%, 
        rgba(241, 241, 241, 0)
    ) 1;
}

.page-article .article-body.is-reversed {
    flex-direction: row-reverse; 
}

.page-article .article-body.is-reversed .media-column {
    padding-right: 40px; 
    padding-left: 0;
    border-left: none;
    border-right: 1px solid; 
    border-image: linear-gradient(to bottom, 
        rgba(241, 241, 241, 0), 
        rgba(241, 241, 241, 1) 10%, 
        rgba(241, 241, 241, 1) 90%, 
        rgba(241, 241, 241, 0)
    ) 1;
}

.page-article .article-body:not(.is-reversed) .media-column {
    padding-left: 40px;
    border-left: 1px solid;
    border-image: linear-gradient(to bottom, 
        rgba(241, 241, 241, 0), 
        rgba(241, 241, 241, 1) 10%, 
        rgba(241, 241, 241, 1) 90%, 
        rgba(241, 241, 241, 0)
    ) 1;
}

.page-article.article-body.is-reversed {
    flex-direction: row-reverse;
}

.page-article .article-body.is-reversed .media-column {
    padding-right: 40px;
    padding-left: 0;
    border-left: none;
    border-right: 1px solid; 
    border-image: linear-gradient(to bottom, 
        rgba(241, 241, 241, 0), 
        rgba(241, 241, 241, 1) 10%, 
        rgba(241, 241, 241, 1) 90%, 
        rgba(241, 241, 241, 0)
    ) 1;
}

.media-item {
    height: auto;
}

.article-footer {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center; 
    margin-top: 60px;
    padding: 40px 0;
}

.conclusion-centered { 
    text-align: center; 
}

.sub-title {
    font-size: 32px;
    font-weight: 900;
    margin: 40px 0 20px 0;
}
.decoupe {
    column-count: 2;
}

p { 
    margin-bottom: 24px; 
    line-height: 1.4;
}

video {
    width: 100%;
    height: 100%;
}

img {
    width: 100%;
    height: auto;
}

.décalage {margin-left: 50px;}

.titre-interview p {
    font-size: 135px;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -5px;
}

.titre-etude p {
    font-size: 110px;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -5px;
}

.page-margin {
    margin-right: 4%;
    margin-left : 25px;
    z-index: 1000;
    border-right: 0.01px dashed #f1f1f1;
}

hr { 
    grid-column: span 12; 
    border: 0; 
    height: 1px; 
    background-image: linear-gradient(to right, #0d0d0d,#1443ff,#28e6ff,#ffffff,#ffd900,#df0202,#0d0d0d); 
}

.decal {
    height: 80px;
}

.item img {
    width: 100%;
    height: auto;
    object-fit: contain; 
    display: block;
}

.legende-partie { 
    height: auto;
}

.paragraph-indent {
    display: grid;
    grid-template-columns: 50% 1fr;
    column-gap: 16px;
    align-items: start;
    column-span: all;
}
.paragraph-indent p {
    margin: 0;
    line-height: 1.4;
    break-inside: avoid;
}

.decoupe .paragraph-indent {
    break-inside: avoid;
    column-span: all;
}

.inside-indent {
    font-size: 18px;
    opacity: 0.7;
    text-align: left;
}

.correction-saut-de-ligne { margin-top: -1.5em;}

.card {
    background-color: #000000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    padding: 16px;
}

.audio_container {
    padding: 16px 0 0 16px;
}

.audio_container figcaption {
    font-size: 12px;
    font-style: italic;
    padding: 16px 0 0 16px;
}

.legende {
    position: relative;
    overflow: visible;
    z-index: 5;
}

.legende img {
    width: 100%;
    height: auto; 
    object-fit: contain; 
    display: block;
}

.legende figcaption {
    border-radius: 0 0 8px 8px;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    box-sizing: border-box;
    background-color: rgba(72, 51, 158, 0.8);
    color: #eae3e0;
    padding: 8px;
    font-weight: 300;
    font-size: 16px; 
    text-align: center;
}

.abstract-img + .text-12col {
    grid-column: span 4;
    padding-left: 24px;
    box-sizing: border-box;
}

.row {
    display: flex;
    margin-bottom: 60px;
    column-gap: 50px;
}

.titre-section {
    flex: 0 0 250px;
    font-size: 2.5rem;
    padding-left: 0;
    line-height: 0; 
    text-align: left;
    word-wrap: break-word;
}

.contenu-section {
    flex: 1;
}

.item-biblio {
    display: grid;
    grid-template-columns: 200px 1fr; 
    gap: 15px;
    margin-bottom: 15px;
}

.auteur {
    text-align: right;
}

.description {
    text-align: left;
}

.header { grid-column: span 12; }

.abstract-img { grid-column: span 7; padding-top: 110px; border: none; }


.parties-img { grid-column: span 6; padding: 16px; border: none; }


.full-img { grid-column: span 12; height: 300px; padding: 0; border: none; }
.text-8col { grid-column: span 8;}
.text-12col { grid-column: span 12; padding-left: 16px;
padding-right: 16px; text-align:justify; } 
.text-6col { grid-column: span 6; text-align: justify; padding-left: 16px; padding-right: 16px;  max-width: 65ch;}
.video { grid-column: span 12; aspect-ratio: 16/9; color: white; display: flex; align-items: center; justify-content: center; }
.bottom-img { grid-column: span 4; padding: 0; border: none; height: 200px; }
.card { grid-column: span 4; }

footer {
    position: relative;
    z-index: 10;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(10px);
}

footer::after {
    content: "";
    display: block;
    height: 6px;
    background: linear-gradient(
        to right,
        #0d0d0d,
        #1443ff,
        #28e6ff,
        #ffffff,
        #ffd900,
        #df0202,
        #0d0d0d
    );
    margin-top: 40px;
}

.footer-container {
            position: relative;
            max-width: 1136px;
            margin: 0 auto;
            padding: 48px 72px;
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 48px; }
.footer-section { grid-column: span 4; }
.footer-section h4 { border-bottom: 1px solid;
    border-image-source: linear-gradient(to right, 
        rgba(255, 255, 255, 0), 
        rgba(241, 241, 241, 1), 
        rgba(255, 255, 255, 0)
    );
    border-image-slice: 1; padding-bottom: 8px; margin-bottom: 16px; }

.mobile-overlay {
    display: none;
}

@media screen and (max-width: 900px) {
    .navbar, 
    .page-margin, 
    .image-rotate,
    .submenu-interview-global,
    footer {
        display: none !important;
    }

    .mobile-overlay {
        display: flex;
        position: fixed;
        inset: 0; 
        z-index: 9999; 
        
        justify-content: center;
        align-items: center;
        flex-direction: column; 
        
        padding: 40px;
        text-align: center;
    }

    .mobile-img {
        width: 80px; 
        height: auto;
        margin-bottom: 30px;
        opacity: 0.9;
    }

    .mobile-content p {
        font-family: "polymath", sans-serif;
        font-size: 18px;
        line-height: 1.5;
        color: #f1f1f1;
        font-weight: 300;
        text-align: center;
    }
}

.image-rotate {
    position: fixed;
    top: 0px;
    right: 0; 
    width: 4vw; 
    height: 4vw;
    aspect-ratio: 1 / 1;
    object-fit: contain;

    z-index: 2100;
    cursor: pointer;
    transition: transform 0.1s linear;
}

.image-rotate.is-in-footer {
    position: absolute;
    top: auto;
    bottom: 40px;
    right: 0;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;

    background:
        radial-gradient(
            700px 700px at 0% 35%,
            rgba(20, 67, 255, 0.18),
            transparent 65%
        ),
        radial-gradient(
            700px 700px at 20% 50%,
            rgba(40, 251, 255, 0.15),
            transparent 70%
        ),
         radial-gradient(
            700px 700px at 50% 60%,
            rgba(255, 255, 255, 0.15),
            transparent 70%
        ),
        radial-gradient(
            700px 700px at 60% 80%,
            rgba(255, 0, 0, 0.15),
            transparent 75%
        ),
        radial-gradient(
            700px 700px at 70% 90%,
            rgba(255, 221, 0, 0.15),
            transparent 75%
        );
        

    animation: gradient-move 10s ease-in-out infinite alternate;
    pointer-events: none;
}