@media screen and (max-width: 768px) {
    /* Navigation mobile */
    #desktop-nav {
        display: none;
    }
    
    #hamburger-nav {
        display: flex;
    }
    
    /* Sections */
    section {
        margin: 0 1rem;
        min-height: auto; /* IMPORTANT : supprime min-height: 100vh */
        padding: 20px 10px;
        margin-bottom: 40px; /* Espace entre sections */
    }
    
    #profile {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
        padding: 20px 0;
    }
    
    .section_infos {
        padding: 20px;
        margin-bottom: 20px;
        order: 1; /* Image en premier */
    }
    
    .section_summary {
        padding: 20px 15px;
        margin-bottom: 30px;
        width: 100%;
        box-sizing: border-box;
        order: 2; /* Texte en second */
    }
    
    .section_pic-container {
        height: 280px;
        width: 280px;
    }
    
    #social-media {
        gap: 1rem;
        flex-wrap: wrap;
        margin-top: 1.5rem;
    }
    
    .icon {
        height: 2.2rem;
    }
    
    /* Timeline responsive */
    .timeline-header h1 {
        font-size: 2.5rem;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px;
        margin-right: 0;
    }

    .timeline-dot {
        left: 30px;
    }

    .timeline-content {
        padding: 20px;
    }

    .container {
        padding: 40px 15px;
    }
}

@media screen and (max-width: 480px) {
    section {
        margin: 0 0.5rem;
        padding: 15px 5px;
    }
    
    .section_pic-container {
        height: 220px;
        width: 220px;
    }
    
    .section_summary {
        padding: 15px 12px;
    }
    
    .section_summary p {
        font-size: 1.1rem;
        line-height: 1.4;
    }
    
    .btn {
        font-size: 1.2rem;
        padding: 1rem;
        width: 8rem;
    }
    
    .icon {
        height: 2rem;
    }
    
    /* Timeline mobile */
    .timeline-header h1 {
        font-size: 2rem;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px;
    }

    .timeline-dot {
        left: 20px;
        width: 16px;
        height: 16px;
    }
}