/* Réinitialisation et polices */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "Host Grotesk", sans-serif;
    width: 100%;
    overflow-x: hidden;
}

/* Bandeau d'intro */
.about-section {
    margin-top: 1rem;
    width: 100%;
    height: auto;
    position: relative;
    background-image: url('/assets/images/ISIVC_Background-v3.png');
    background-size: cover;
    background-position: center;
    margin: 0 auto;
    border-radius: 20px;
    padding: 2rem;
}
.about-container {
    max-height: 50vh;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 2rem;
}
.about-content {
    position: relative;
    top: 20%;
    text-align: left;
    margin-left: 50px;
}
.about-title {
    font-size: 4rem;
    color: #E87722;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

/* Sections principales */
.section {
    display: flex;
    align-items: flex-start;
    padding: 2rem;
    gap: 2rem;
    background-color: #fff;
    margin: 1rem auto;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.section-content {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 1.5rem;
    width: 100%;
}

/* Colonnes */
.left-column {
    flex: 0 0 33%; /* % pour la colonne de gauche */
    display: flex;
    flex-direction: column;
    align-items: center;
}
.right-column {
    flex: 0 0 67%; /* % pour la colonne de droite */
    min-width: 0;
    text-align: center;
}
.section-image {
    width: 100%; /* Prend toute la largeur de .left-column */
    height: auto;
    border-radius: 10px;
    object-fit: contain;
    max-width: 100%;
}

/* Titres et paragraphes */
.section-text h2,
.section-content h2,
.section-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #1D5C9E;
    text-align: center;
}
.blue-subtitle {
    color: #1D5C9E;
    font-size: 1.4rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    text-align: center;
}
.spaced-paragraph {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    text-align: center;
}

/* Listes */
.spaced-list,
.speaker-list,
.date-list {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    padding-left: 1.2rem;
    text-align: left;
    display: inline-block;
    margin: 0 auto 1.5rem;
}
.spaced-list li,
.speaker-list li,
.date-list li {
    margin-bottom: 0.7rem;
    position: relative;
    padding-left: 20px;
}
.speaker-list li:before,
.date-list li:before {
    content: "•";
    color: #E87722;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Liens */
.link {
    color: #1D5C9E;
    text-decoration: none;
}
.link:hover {
    text-decoration: underline;
}

/* Bouton de téléchargement */
.download-button {
    display: block;
    width: fit-content;
    margin: 1rem auto 0;
    padding: 0.7rem 1.5rem;
    background-color: #1D5C9E;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
}
.download-button:hover {
    background-color: #1E3A2B;
}
.download-button i {
    margin-right: 0.5rem;
}

/* Liste de navigation */
.nav-list {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: left;
    width: 100%; /* Prend toute la largeur disponible */
    max-width: none; /* Enlève la limite de largeur */
    box-sizing: border-box; /* Assure que le padding ne dépasse pas la largeur */
}
.nav-list h2 {
    color: #1D5C9E;
    margin-bottom: 15px;
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
}
.nav-list ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    width: 100%; /* Prend toute la largeur du parent */
}
.nav-list li {
    margin-bottom: 10px;
    padding: 0 10px; /* Ajoute un peu de padding horizontal */
}
.nav-list a {
    color: #E87722;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem; /* Augmente la taille de la police */
    display: block;
    padding: 10px 0; /* Augmente légèrement le padding vertical pour plus d'espace */
    border-bottom: 1px solid #eee;
    transition: color 0.3s;
}

/* Responsive */
@media (max-width: 768px) {
    .section {
        flex-direction: column;
    }
    .left-column {
        display: none;
    }
    .right-column {
        flex: 0 0 100%;
    }
    .about-title {
        font-size: 2.5rem;
    }
    .nav-list {
        padding: 15px;
    }
    .section-content h2 {
        font-size: 1.5rem;
    }
}