.content {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.project {
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 20px;
    background-color: #1E1F28;
    position: relative; 
}

#titlem {
    margin-left: 20px;
    color: black;
    text-decoration: underline;
}

.project h2, .project p {
    color: #FFFFFF;
}

.project a {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 15px;
    background-color: #007BFF;
    color: #fff;
    text-decoration: none;
    border-radius: 15px;
}

.project a:hover {
    background-color: #0056b3;
}

.projects-container-box {
    display: block;
    width: 325px;
    height: auto;
    border-radius: 15px;
    background-color: #1E1F28;
    position: relative;
}

#projects-container-box-title {
    font-size: 26px;
    text-align: center;
    color: #FFFFFF;
    margin: 5px 0;
}

#projects-container-box-a a {
    display: flex;
    background-color: #007BFF;
    border-radius: 20px;
    width: 125px;
    height: 30px;
    text-align: center;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #FFFFFF;
    margin: 15px auto;
}

#projects-container-box-a a:hover {
    background-color: #0056b3;
}

#file-type {
    font-size: 14px;
    text-align: center;
    font-weight: bold;
}

.navigation {
    float: right;
    background-color: white;
    border-radius: 20px;
    padding: 10px;
    width: 100px;
    margin-right: 10px;
    text-align: center;
}

.key {
    margin-bottom: 5px;
}

#date-t {
    font-size: 12px;
}

#return a {
    color: #007BFF;
    margin-bottom: 20px;
}

.favorite-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #ccc;
    float: right;
}

.favorite-btn.active {
    color: #ffcc00;
}

.projects-container {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 100px;
    flex-wrap: wrap;
}

.projects-container-box {
    display: block;
    width: 325px;
    height: auto;
    border-radius: 15px;
    background-color: #1E1F28;
    position: relative;
    padding: 15px;
    margin-bottom: 20px;
    text-align: center;
}

#projects-container-box-title {
    font-size: 26px;
    color: #FFFFFF;
    margin: 5px 0;
}

#file-type {
    font-size: 14px;
    font-weight: bold;
    color: #FFFFFF;
    margin: 10px 0;
}

.info-btn {
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
}

.popup {
    display: none; 
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5); 
    align-items: center;
    justify-content: center;
    text-align: center;
}

.popup-content {
    background-color: #1E1F28;
    margin: 15% auto;
    padding: 20px;
    border-radius: 5px;
    width: 80%;
    max-width: 500px;
}

.close-btn {
    color: #fff;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-btn:hover {
    color: red;
}