/* --- BASES --- */
body {
    background: black;
    margin: 0;
    width: 100vw;
    height: 100vh;
    color: white;
    overflow: hidden;
    font-family: "Oswald", sans-serif;
}

#backgroundLines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -100;
    pointer-events: none;
}

/* --- HEADER & NAVBAR --- */
header {
    height: 10vh;
    z-index: 3000;
    position: relative;
}

header nav {
    height: 100%;
    display: flex;
    position: relative;
}

.animationToggle {
    position: absolute;
    left: 3vw; /* Aligné à gauche */
    top: 25px;
    width: 50px;
    height: 50px;
    border-radius: 2px;
    background-color: #2b293a;
    color: white;
    box-shadow: 0px 0px 10px #403939;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    z-index: 3002;
    transition: all 0.3s ease;
}

.animationToggle:hover {
    background-color: white;
    color: black;
}

.animationToggle i {
    font-size: 1.2rem;
}

.titreNav {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3001;
}

.titreNav a {
    text-decoration: none !important;
    color: white;
    cursor: pointer;
}

.titreNav p {
    margin: 0;
    font-size: 2.5vw;
    text-align: center;
}

/* BOUTON LANGUE */
.languageButton,
.languageLink {
    position: absolute;
    font-size: 85%;
    right: 3vw;
    border-radius: 2px;
    height: 50px;
    background-color: #2b293a;
    color: white;
    box-shadow: 0px 0px 10px #403939;
    display: inline-flex;
    align-items: center;
    justify-content: space-around;
    border: none;
    cursor: pointer;
    z-index: 3002;
}

.languageButton {
    top: 25px;
    width: 80px;
}

.languageLink {
    top: 75px;
    width: 80px;
    display: none;
    text-decoration: none;
}

.languageLink.visible {
    display: inline-flex;
}

.languageButton:hover,
.languageLink:hover {
    background-color: white;
    color: black;
}

/* --- COLONNES --- */
.indexContainer {
    display: flex;
    width: 96vw;
    height: 85vh;
    margin: 0 auto;
    gap: 20px;
    transition: all 1s cubic-bezier(0.25, 1, 0.5, 1);
}

.column {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0px 0px 10px 0px rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: flex 1s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s ease;
    background-color: rgba(0, 0, 0, 0.65);
}

.column:hover {
    border-color: rgba(255, 255, 255, 0.3);
}

.column::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-position: center;
    z-index: -1;
    background-size: contain;
    background-repeat: no-repeat;
    transform: scale(1);
    filter: brightness(0.4);
    transition: transform 1s, filter 0.5s;
    pointer-events: none;
    visibility: hidden;
}

#indexProjet::before {
    background-image: url('../ressources/img/capgemini_img.png');
}

#indexInfos::before {
    background-image: url('../ressources/img/infos_img.png');
}

#indexParcours::before {
    background-image: url('../ressources/img/parcours_img.png');
}

.column-header {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    text-align: center;
    width: 100%;
    pointer-events: none;
}

.column-header h1 {
    font-size: 2vw;
    text-transform: uppercase;
    margin: 0;
}

/* HOVER INDEX */
.indexContainer:not(.expanding) .column:hover {
    flex: 1.5;
}

.indexContainer:not(.expanding) .column:hover::before {
    transform: scale(1.2);
    filter: brightness(0.6);
}

/* ACTIF SPA */
.indexContainer.expanding {
    gap: 0;
    width: 100vw;
    height: 90vh;
}

.indexContainer.expanding .column:not(.active) {
    flex: 0;
    opacity: 0;
    pointer-events: none;
}

/* On désactive les transitions de largeur UNIQUEMENT pendant la navigation avec les flèches */
.indexContainer.swapping,
.indexContainer.swapping .column {
    transition: none !important;
}

.column.active {
    flex: 100;
    cursor: default;
    border-radius: 0;
    overflow-y: auto;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0.85);
}

.column.active:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.column.active::before {
    transform: scale(1);
    filter: brightness(0.15);
    position: fixed;
}

.column.active .column-header {
    display: none;
}

/* --- ANIMATIONS DIRECTIONNELLES --- */
.section-content { 
    display: none; 
    position: relative; 
    z-index: 20; 
    padding: 50px 0vw 150px 0vw;
}

.column.active .section-content { 
    display: block; 
}

.indexContainer[data-anim="fade"] .column.active .section-content > *:not(.btn-nav) { 
    animation: fadeIn 0.8s ease forwards; 
}

.indexContainer[data-anim="right"] .column.active .section-content > *:not(.btn-nav) { 
    animation: slideInLeft 0.6s ease forwards; 
}

.indexContainer[data-anim="left"] .column.active .section-content > *:not(.btn-nav) { 
    animation: slideInRight 0.6s ease forwards; 
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(250px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-250px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* --- NAVIGATION INTERNE (MODERNISÉE) --- */
.btn-nav {
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    z-index: 4000;
    width: 10vw;
    height: 90vh;
    top: 10vh;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

/* Style de la flèche (icône FontAwesome) */
.btn-nav i {
    font-size: 2.5vw;
    opacity: 0.2;       /* Presque invisible par défaut */
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* Effet rebond */
}

/* Bouton Gauche */
.btnLeft {
    left: 0;
    /* Gradient très subtil vers transparent */
    background: linear-gradient(to right, rgba(43, 41, 58, 0.5), transparent);
}

/* Bouton Droit */
.btnRight {
    right: 0;
    background: linear-gradient(to left, rgba(43, 41, 58, 0.5), transparent);
}

/* --- EFFETS AU SURVOL (HOVER) --- */

.btn-nav:hover {
    /* Le gradient devient plus sombre et plus présent */
    background: linear-gradient(to right, rgba(43, 41, 58, 0.8), transparent);
}

.btnRight:hover {
    background: linear-gradient(to left, rgba(43, 41, 58, 0.8), transparent);
}

/* Animation de la flèche au hover */
.btn-nav:hover i {
    opacity: 1;
    color: #6e6c6c; /* Une couleur plus vive (ajustable selon tes goûts) */
    text-shadow: 0 0 15px rgba(250, 250, 250, 0.2);
}

/* Déplacement de la flèche vers l'extérieur */
.btnLeft:hover i {
    transform: translateX(-15px); /* Se déplace vers la gauche */
}

.btnRight:hover i {
    transform: translateX(15px);  /* Se déplace vers la droite */
}

/* Suppression de l'effet blanc au hover qui casserait le gradient */
.btn-nav:hover {
    background-color: transparent; 
}

/* --- CONTENUS --- */
#projetsContainer {
    display: flex;
    flex-direction: column;
    gap: 50px;
    align-items: center;
}

.projet {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 60%;
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 15px;
    transition: opacity 0.1s ease-out, transform 0.1s ease-out;
    will-change: opacity, transform;
}

.projet img {
    width: 25vw;
    border-radius: 10px;
}

.square img {
    width: 12vw;
}

.projet > div {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 55%;
    text-align: center;
}

.projetPage {
    display: flex;
    flex-direction: column;
    gap: 50px;
    align-items: center;
}

.projetPage > article {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 65%;
    padding: 20px;
}

.projetPage h1 {
    width: 100%;
    text-align: center;
    font-size: 2vw;
} 

.projetPage p {
    font-size: 1.2vw;      /* Légèrement augmenté car 0.8vw est très petit */
    text-align: justify;   /* JUSTIFICATION DU TEXTE */
    width: 100%;           /* Limite la largeur pour un aspect plus "bloc" */
    line-height: 1.6;      /* Ajoute de l'espace entre les lignes pour la lisibilité */
    margin-bottom: 15px;
}

/* On s'assure que le conteneur des boutons reste centré */
.projetPage div {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin-top: 20px;
}

/* --- LOGOS DES TECHNOLOGIES --- */
.tech-logos {
    display: flex;
    gap: 20px;
    margin: 20px 0;
    flex-wrap: wrap;
    align-items: center;
}
.tech-logos i, 
.tech-logos img {
    font-size: 40px;
    height: 40px;   
    width: auto;
    color: rgba(255, 255, 255, 0.7);
    opacity: 0.7;
    transition: all 0.3s ease;
    cursor: pointer;
}
.tech-logos i:hover, 
.tech-logos img:hover {
    color: white;
    opacity: 1;
    transform: translateY(-5px);
    filter: drop-shadow(0px 5px 10px rgba(255, 255, 255, 0.3));
}

/* --- GALERIE D'IMAGES (PROJETS) --- */
.gallery-title {
    width: 100%;
    text-align: left;
    font-size: 1.5vw;
    margin-top: 30px;
    margin-bottom: 15px;
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 10px;
}

.project-gallery {
    display: flex;
    flex-wrap: wrap; /* La fameuse propriété pour le retour à la ligne automatique */
    gap: 15px;
    width: 100%;
    margin-bottom: 30px;
    justify-content: center; /* Centre la grille d'images dans l'espace disponible */
}

.gallery-img {
    flex: 1 1 150px; /* Permet aux images de s'adapter tout en gardant une base de 150px */
    max-width: 220px; /* Empêche les images de s'étirer de façon disproportionnée */
    height: 120px;
    object-fit: cover;
    object-position: top;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.gallery-img:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

/* --- FENÊTRE MODALE (LIGHTBOX) --- */
.modal {
    position: fixed;
    z-index: 5000; /* Doit être au-dessus de tout le reste */
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s ease;
}

.modal.hidden {
    display: none !important;
}

.modal-content {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
    object-fit: contain; /* L'image s'affiche en entier sans être coupée */
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 35px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close-modal:hover {
    color: #ccc;
}


.bouton-telecharger,
.bouton-ensavoirplus,
.btnRetour {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 12vw;      /* Largeur fixe minimale pour la symétrie */
    height: 45px;         /* Hauteur fixe pour l'uniformité */
    margin: 10px;
    padding: 0 20px;
    box-sizing: border-box;
    font-family: sans-serif; /* Pour rester cohérent avec le reste */
    text-transform: uppercase;         /* Optionnel : rend les boutons plus pro */
    font-size: 1vw;
    color: white;
    text-decoration: none;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.05); /* Fond très léger au lieu de transparent */
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.bouton-telecharger:hover,
.bouton-ensavoirplus:hover,
.btnRetour:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px); /* Petit effet de levier */
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
}

#infosContainer {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#infosContainer>article {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: justify;
}

#infosContainer p {
    width: 60%;
    font-size: 1.5vw;
    line-height: 1.6;
    margin-bottom: 20px;
}

/* --- TIMELINE VERTICALE CENTRÉE --- */
#mainParcours {
    padding: 20px 0 100px 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.vertical-timeline {
    position: relative;
    max-width: 1200px;
    width: 90%;
    margin-top: 25px;
}

/* La ligne centrale */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.2) 10%, rgba(255, 255, 255, 0.2) 90%, transparent);
    transform: translateX(-50%);
}

.v-item {
    position: relative;
    width: 45%;
    padding: 20px;
    box-sizing: border-box;
    margin-top: 150px;
    margin-bottom: 30px;
    transition: opacity 0.1s ease-out, transform 0.1s ease-out;
    will-change: opacity, transform;
}

/* Alternance Gauche / Droite */
.v-item.left { 
    left: 0; 
    text-align: right; 
    padding: 25px;
    transform-origin: right center;
}
.v-item.right { 
    left: 52%; 
    text-align: left; 
    transform-origin: left center;
}

/* Le point central */
.v-dot {
    position: absolute;
    top: 60%;
    width: 40px;
    height: 40px;
    background: #000;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transform: translateY(-50%);
    transition: all 0.4s ease;
}

.v-dot i { font-size: 14px; color: rgba(255, 255, 255, 0.5); }

.v-item.left .v-dot { right: -82px; }
.v-item.right .v-dot { left: -46px; }

/* Contenu de l'étape */
.v-content {
    text-align: center;
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.v-content h3 { margin: 0; font-size: 1.4vw; color: white; }
.v-content p { margin: 5px 0 0; color: rgba(255, 255, 255, 0.5); font-size: 1vw; }

/* La date */
.v-date {
    padding-left: 10px;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.2);
    font-size: 1.2vw;
    margin-bottom: 5px;
    transition: color 0.4s;
}

.v-item.left .v-date {
    padding-left: 30px;
    width: 100%;
}

/* --- EFFETS AU SURVOL --- */
.v-item:hover .v-content {
    background: rgba(255, 255, 255, 0.08);
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.v-item:hover .v-dot {
    border-color: #fff;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.4);
    transform: translateY(-50%) scale(1.2);
}

.v-item:hover .v-dot i { color: #fff; }
.v-item:hover .v-date { color: #fff; }

/* Style pour l'élément actif (BUT Informatique) */
.v-item.active .v-dot {
    background: white;
    border-color: white;
}
.v-item.active .v-dot i { color: black; }
.v-item.active .v-date { color: white; opacity: 1; }

#mainParcours img {
    max-width: 70%;
    border-radius: 10px;
}

/* --- RESPONSIVE MODE --- */
@media screen and (orientation: portrait) {
    .titreNav p {
        font-size: 5vw;
    }
    
    .indexContainer {
        flex-direction: column;
    }
    
    .btn-nav {
        width: 15vw;
        font-size: 3vw;
    }

    .timeline-line { left: 30px; }
    .v-item { width: 100%; left: 0 !important; text-align: left !important; padding-left: 70px; }
    .v-dot { left: 10px !important; }
    .v-content h3 { font-size: 4.5vw; }
    .v-content p { font-size: 3.5vw; }
    .v-date { font-size: 3.5vw; }

    /* Titres des colonnes avant l'ouverture */
    .column-header h1 {
        font-size: 7vw;
    }

    /* Élargissement des zones de texte (65% c'est trop petit sur mobile) */
    .projetPage > article,
    #infosContainer p {
        width: 90%;
    }

    /* Titres dans les pages de détail */
    .projetPage h1 {
        font-size: 7vw;
    }
    .gallery-title {
        font-size: 5vw;
    }

    /* Paragraphes de texte */
    .projetPage p,
    #infosContainer p {
        font-size: 4vw; /* On passe de 1.2vw à 4vw */
    }

    /* Ajustement des boutons pour être cliquables avec le doigt */
    .bouton-telecharger,
    .bouton-ensavoirplus,
    .btnRetour {
        font-size: 3.5vw;
        min-width: 40vw;
        padding: 12px 10px;
        height: auto;
    }

    /* Ajustement des cartes "Projets" dans la liste principale */
    .projet {
        flex-direction: column; /* Empile l'image et le texte verticalement */
        width: 85%;
        text-align: center;
    }
    .projet img {
        width: 70vw;
        margin: 15px 0;
    }
    .square img {
        width: 40vw; /* Les logos carrés prennent un peu moins de place */
    }
    .projet > div {
        width: 100%;
    }
}

.hidden{
    display: none !important;
}