:root {
    --cover-width: 160px;
    --cover-height: 240px;
    --cover-width-lg: 250px;
    --cover-height-lg: 375px;
}

body {
    background-color: #f8f9fa;
}

/* Book cards */
.book-card {
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    border: none;
    border-radius: 8px;
    overflow: hidden;
    height: 100%;
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.book-card .cover-container {
    width: 100%;
    height: var(--cover-height);
    overflow: hidden;
    background-color: #e9ecef;
    position: relative;
}

.book-card .cover-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-card .no-cover {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #6c757d;
    font-size: 3rem;
}

.book-card .read-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 0.7rem;
}

.book-card .card-body {
    padding: 0.75rem;
}

.book-card .card-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-card .card-author {
    font-size: 0.8rem;
    color: #6c757d;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.book-card .card-series {
    font-size: 0.75rem;
    color: #0d6efd;
    margin-bottom: 0.25rem;
}

/* Rating stars */
.rating-stars {
    display: inline-flex;
    gap: 2px;
    font-size: 0.9rem;
}

.rating-stars .star {
    color: #ddd;
    cursor: default;
}

.rating-stars .star.filled {
    color: #ffc107;
}

.rating-stars .star.half {
    position: relative;
    color: #ddd;
}

.rating-stars .star.half::before {
    content: "\f586";
    font-family: "bootstrap-icons";
    position: absolute;
    left: 0;
    color: #ffc107;
    overflow: hidden;
    width: 50%;
}

.rating-stars.editable .star {
    cursor: pointer;
    transition: color 0.1s;
}

.rating-stars.editable .star:hover {
    color: #ffca2c;
}

/* Book grid */
.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

@media (max-width: 576px) {
    .book-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 0.75rem;
    }

    .book-card .cover-container {
        height: 200px;
    }
}

/* Filter bar */
.filter-bar {
    background: white;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.filter-bar .form-control,
.filter-bar .form-select {
    font-size: 0.9rem;
}

/* Book detail */
.book-detail {
    max-width: 900px;
    margin: 0 auto;
}

.book-detail .cover-large {
    width: var(--cover-width-lg);
    height: var(--cover-height-lg);
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.book-detail .no-cover-large {
    width: var(--cover-width-lg);
    height: var(--cover-height-lg);
    background-color: #e9ecef;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    font-size: 5rem;
}

.book-detail .metadata-table th {
    width: 120px;
    font-weight: 500;
    color: #6c757d;
    border: none;
}

.book-detail .metadata-table td {
    border: none;
}

/* Series cards */
.series-card {
    transition: transform 0.15s ease;
    cursor: pointer;
}

.series-card:hover {
    transform: translateY(-2px);
}

.series-progress {
    height: 6px;
    border-radius: 3px;
}

/* Next unread highlight */
.next-unread {
    border-left: 4px solid #0d6efd;
    background-color: rgba(13, 110, 253, 0.05);
}

/* Login */
.login-container {
    max-width: 400px;
    margin: 100px auto;
}

/* Tags */
.tag-badge {
    font-size: 0.75rem;
    font-weight: 400;
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
}

/* Loading */
.loading-spinner {
    display: flex;
    justify-content: center;
    padding: 3rem;
}

/* Pagination */
.pagination-info {
    font-size: 0.85rem;
    color: #6c757d;
}