:root {
    --navy-blue: #000080;
}

body {
    font-family: 'Arial', sans-serif;
    color: #333;
}

.bg-navy-blue {
    background-color: var(--navy-blue);
}

.text-navy-blue {
    color: var(--navy-blue);
}

.unclickable-link {
    color: inherit;
    text-decoration: none;
    cursor: text;
    pointer-events: none;
}

#vertical-header {
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

#toggle-header {
    transition: all 0.3s ease;
}

#toggle-header:hover {
    background-color: #000060;
}

section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

/* Ajoutez ou modifiez ces styles */
#three-js-container {
    width: 100%;
    height: 400px;
    background-color: rgba(0, 0, 128, 0.05);
}

canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

canvas {
    max-width: 100%;
    height: auto;
    margin-top: 20px;
}

@media (max-width: 640px) {
    #vertical-header {
        width: 100%;
        height: auto;
    }
}

.grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}