/* assets/css/style.css */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f7f6;
    color: #333;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-section {
    background: linear-gradient(135deg, #0d6efd, #0dcaf0);
    color: white;
    padding: 3rem 1rem;
    text-align: center;
    border-radius: 0 0 20px 20px;
    margin-bottom: 2rem;
}

.card-book {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.card-book:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.cover-placeholder {
    height: 200px;
    background-color: #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #adb5bd;
    font-size: 3rem;
}

.admin-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}