body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    text-align: center;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
}

.pdf-grid {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.pdf-card {
    background-color: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.2s ease-in-out;
    width: 150px;
}

.pdf-card:hover {
    transform: scale(1.05);
}

.pdf-viewer {
    background: white;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.2);
    margin-top: 20px;
}

.pdf-button {
    background-color: #06d21a;
    padding: 10px;
    margin-top: 20px;
    margin-bottom: 10px;
    border-radius: 5px;
    transition: background-color 0.3s ease-in-out;
    color: rgb(0, 0, 0);
    text-decoration: none;
    cursor: pointer;
}

.pdf-button:hover {
    background-color: #30b536;
    color: rgb(251, 251, 251);
}

.phases {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

#phase1 , #phase2 , #phase3, #phase4, #phase5, #phase6, #conclusion {
    margin-bottom: 20px;
    width: 20rem;
    height: auto;
    display: inline-block;
    padding: 10px;
    border-radius: 5px;
    background-color: #f0f0f0;
    box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease-in-out;
}
#phase1:hover, #phase2:hover, #phase3:hover, #phase4:hover, #phase5:hover, #phase6:hover, #conclusion:hover {
    background-color: #e0e0e0;
}

#phase1 h2, #phase2 h2, #phase3 h2, #phase4 h2, #phase5 h2, #phase6 h2, #conclusion h2 {
    margin-bottom: 10px;
    color: rgb(255, 252, 252);
    background: #000000d6;
    padding: 5px;
    border-radius: 5px;
    font-size: medium;
}