body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: #f8f9fa;
}

.footer {
    margin-top: auto;
}

.chapter-section {
    scroll-margin-top: 80px;
    background-color: white;
    padding: 1.5rem;
    border-radius: 0.25rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.chapter-nav .list-group-item {
    border-left: none;
    border-right: none;
    border-radius: 0;
    transition: all 0.3s ease;
}

.chapter-nav .list-group-item.active {
    background-color: #0d6efd;
    border-color: #0d6efd;
    font-weight: bold;
}

.chapter-content {
    line-height: 1.8;
    text-align: justify;
}

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1100;
}

.export-progress {
    height: 5px;
    width: 100%;
    background-color: #e9ecef;
    margin-top: 10px;
    border-radius: 3px;
    overflow: hidden;
}

.export-progress-bar {
    height: 100%;
    background-color: #0d6efd;
    width: 0%;
    transition: width 0.3s ease;
}

@media (max-width: 768px) {
    .chapter-nav {
        margin-bottom: 2rem;
    }
}

/* Galeria zdjęć */
.photo-gallery .card {
    transition: transform 0.3s;
}
.photo-gallery .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.photo-gallery .card-img-top {
    height: 200px;
    object-fit: cover;
}