:root {
    --makri-green: #218c3a;
    --makri-red: #c1272d;
    --makri-dark: #222;
    --makri-light: #f8f8f8;
    --makri-font-title: 'Pacifico', cursive;
    --makri-font-body: 'Montserrat', Arial, sans-serif;
}

body {
    background: var(--makri-light);
    font-family: var(--makri-font-body);
}

.library-header {
    text-align: center;
    margin-bottom: 2rem;
}

.library-title {
    font-family: var(--makri-font-title);
    color: var(--makri-green);
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.library-subtitle {
    color: var(--makri-dark);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.library-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--makri-green), var(--makri-red));
    margin: 0 auto 2rem auto;
    border-radius: 2px;
}

.search-section {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.search-container {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: 0.8rem 2.5rem 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 30px;
    font-size: 1rem;
    transition: box-shadow 0.2s;
    outline: none;
}

.search-input:focus {
    box-shadow: 0 0 0 2px var(--makri-green, #218c3a);
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--makri-green);
    font-size: 1.2rem;
}

.filter-section {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--makri-light);
    color: var(--makri-green);
    border: 1px solid var(--makri-green);
    border-radius: 20px;
    padding: 0.5rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, transform 0.2s;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--makri-green);
    color: #fff;
    transform: scale(1.05);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.book-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(33,140,58,0.08);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    min-height: 420px;
    position: relative;
}

.book-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 8px 32px rgba(33,140,58,0.16);
}

.book-cover-container {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.book-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.book-card:hover .book-cover {
    transform: scale(1.07);
}

.book-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(33,140,58,0.12) 100%);
}

.book-status {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--makri-green);
    color: #fff;
    padding: 0.2rem 0.8rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(33,140,58,0.08);
}

.book-pages {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: #fff;
    color: var(--makri-green);
    padding: 0.2rem 0.8rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(33,140,58,0.08);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.book-content {
    padding: 1.2rem 1rem 1rem 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.book-title {
    font-family: var(--makri-font-title);
    color: var(--makri-green);
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
}

.book-author {
    color: var(--makri-green);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.book-description {
    color: var(--makri-dark);
    font-size: 0.98rem;
    margin-bottom: 0.7rem;
    min-height: 48px;
}

.book-meta {
    color: #888;
    font-size: 0.92rem;
    margin-bottom: 0.7rem;
    display: flex;
    gap: 1rem;
}

.book-isbn {
    background: #f2f2f2;
    border-radius: 8px;
    padding: 0.1rem 0.5rem;
    font-size: 0.9rem;
}

.book-actions {
    display: flex;
    gap: 0.7rem;
    margin-top: auto;
}

.book-btn {
    border: none;
    border-radius: 16px;
    padding: 0.4rem 1.1rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
}

.book-btn-primary {
    background: var(--makri-green);
    color: #fff;
}

.book-btn-primary:hover {
    background: var(--makri-red);
    color: #fff;
    transform: scale(1.05);
}

.book-btn-secondary {
    background: #fff;
    color: var(--makri-green);
    border: 1px solid var(--makri-green);
}

.book-btn-secondary:hover {
    background: var(--makri-green);
    color: #fff;
    transform: scale(1.05);
}

.empty-state {
    text-align: center;
    padding: 3rem 0;
    color: var(--makri-dark);
}

.empty-icon {
    font-size: 3rem;
    color: var(--makri-green);
    margin-bottom: 1rem;
}

.empty-title {
    font-family: var(--makri-font-title);
    color: var(--makri-green);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.empty-description {
    color: #888;
    font-size: 1.1rem;
}

.pagination-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.pagination {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.pagination a, .pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1.1rem;
    color: var(--makri-green);
    background: #fff;
    transition: background 0.2s, color 0.2s, transform 0.2s;
    text-decoration: none;
    border: 1px solid #e0e0e0;
}

.pagination a:hover, .pagination span.active {
    background: var(--makri-green);
    color: #fff;
    transform: scale(1.1);
    border-color: var(--makri-green);
}

.pagination span.disabled {
    color: #bbb;
    background: #f2f2f2;
    cursor: not-allowed;
    border: 1px solid #eee;
}

@media (max-width: 700px) {
    .books-grid {
        grid-template-columns: 1fr;
    }
    .library-title {
        font-size: 2rem;
    }
    .book-card {
        min-height: 340px;
    }
}