* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #e8c5e8;
    color: #333;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 200px;
    background: #d4a5d4;
    padding: 20px;
    border-right: 2px solid #333;
}

.sidebar h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 18px;
    text-decoration: underline;
}

.category-filters {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.category-btn {
    background: white;
    border: 2px solid #333;
    padding: 10px 15px;
    border-radius: 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    text-align: left;
    transition: background 0.2s;
}

.category-btn:hover {
    background: #f0f0f0;
}

.category-btn.active {
    background: #333;
    color: white;
}

/* Contenu principal */
.main-content {
    flex: 1;
    padding: 20px;
}

.header {
    margin-bottom: 30px;
}

.search-section {
    margin-bottom: 20px;
}

.search-section h1 {
    color: #333;
    margin-bottom: 15px;
    font-size: 24px;
}

.search-form {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    align-items: center;
}

.search-form input {
    padding: 8px 12px;
    width: 300px;
    border: 2px solid #333;
    border-radius: 0;
    font-size: 14px;
}

.search-form button {
    padding: 8px 16px;
    background: #333;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 14px;
}

.book-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.add-link {
    display: inline-block;
    text-decoration: none;
    background: #333;
    color: white;
    padding: 8px 16px;
    border: 2px solid #333;
    font-weight: bold;
}

.add-link:hover {
    background: white;
    color: #333;
}

/* Filtres de genre */
.genre-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.genre-btn {
    background: white;
    border: 2px solid #333;
    padding: 8px 16px;
    border-radius: 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: background 0.2s;
}

.genre-btn:hover {
    background: #f0f0f0;
}

.genre-btn.active {
    background: #333;
    color: white;
}

/* Grille des livres */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.book-card {
    background: white;
    border: 2px solid #333;
    padding: 15px;
    text-align: center;
    min-height: 300px;
    display: flex;
    flex-direction: column;
}

.image-wrapper {
    width: 100%;
    height: 150px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
    background: #f9f9f9;
    border: 1px solid #ddd;
}

.book-card img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
}

.book-info-card {
    flex: 1;
    text-align: left;
}

.book-info-card h3 {
    margin-bottom: 8px;
    font-size: 16px;
    color: #333;
}

.book-info-card p {
    margin-bottom: 4px;
    font-size: 14px;
}

/* Styles pour la page add_book.php */
.add-book-container {
    max-width: 600px;
    margin: 50px auto;
    background: white;
    padding: 40px;
    border: 3px solid #333;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.add-book-container h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 28px;
    border-bottom: 2px solid #333;
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
    color: #333;
    font-size: 16px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #333;
    border-radius: 0;
    font-size: 14px;
    background: white;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #d4a5d4;
    background: #fafafa;
}

.submit-btn {
    background: #333;
    color: white;
    padding: 15px 30px;
    border: 2px solid #333;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
    margin-top: 20px;
}

.submit-btn:hover {
    background: #d4a5d4;
    border-color: #d4a5d4;
}

.back-link {
    display: inline-block;
    text-decoration: none;
    color: #333;
    font-weight: bold;
    margin-top: 20px;
    padding: 10px 20px;
    border: 2px solid #333;
    background: white;
    transition: all 0.3s;
}

.back-link:hover {
    background: #333;
    color: white;
}

.success-message {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border: 2px solid #155724;
    margin-bottom: 20px;
    font-weight: bold;
}

.error-list {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border: 2px solid #721c24;
    margin-bottom: 20px;
}

.error-list ul {
    margin: 0;
    padding-left: 20px;
}

.error-list li {
    margin-bottom: 5px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        padding: 15px;
    }
    
    .category-filters {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .search-form input {
        width: 250px;
    }
    
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }
    
    .add-book-container {
        margin: 20px;
        padding: 20px;
    }
}