/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .work-grid { grid-template-columns: repeat(2, 1fr); }
    .stories-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
    .contact-content { grid-template-columns: 1fr; }
    .contact-info { text-align: center; }
    .engagement-grid-container {
        grid-template-columns: 1fr;
    }
    .engagement-content { flex-direction: column; text-align: center; }
    .engagement-image { max-width: 80%; margin-bottom: 2rem; }
    .engagement-legacy ul { text-align: center; } /* Center list items for smaller screens */
    .engagement-legacy ul li::before {
        left: 50%;
        transform: translateX(-50%) translateX(-2.5rem); /* Adjust star position */
    }
}

@media (max-width: 768px) {
    html { font-size: 15px; }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        height: calc(100vh - 80px);
        text-align: center;
        transition: 0.3s;
        gap: 2rem;
        padding-top: 3rem;
        z-index: 999; /* Ensure it's below header */
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-donate { display: none; }
    .hamburger { display: block; }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

    .hero-title { font-size: 2.8rem; }
    .hero-subtitle { font-size: 1.1rem; }
    .urgence-grid { grid-template-columns: 1fr; }
    .stories-grid { grid-template-columns: 1fr; }
    .work-grid { grid-template-columns: 1fr; }
    .book-item { flex-direction: column; text-align: center; }
    .book-cover { margin-bottom: 1rem; }
    .actuality-item { padding: 2rem; min-height: calc(100vh - 80px - 61px); }
    .actuality-content h3 { font-size: 2.2rem; }
    .actuality-content p { font-size: 1.2rem; }
    .gallery-text-overlay { padding: 3rem 1.5rem 1.5rem; text-align: center;}
    section { padding: 4rem 1.5rem; }
    .actuality-section { padding: 4rem 0 0; }
    .about-hero { padding: 6rem 1rem; }
    .founder-content { grid-template-columns: 1fr; text-align: center; }

    .slider-arrow {
        top: 45%; /* Adjust for better vertical centering on mobile */
    }

    .donation-block {
        margin: 0 1rem; /* Add horizontal margin on mobile */
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    h2.section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    .actuality-content h3 {
        font-size: 1.8rem;
    }
    .actuality-content p {
        font-size: 1rem;
    }
    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
    }
    .engagement-card {
        padding: 1.5rem;
    }
    .donation-content {
        padding: 1.5rem;
    }
    .donation-title {
        font-size: 2rem;
    }
    .btn-donate-new {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}