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

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


.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    margin: 0 auto;
    max-width: 1200px;
}

header {
    background-color: #f2f2f2;
    border-bottom: 1px solid #ddd;
    padding: 15px 0;
}

footer {
    background-color: #f2f2f2;
    padding: 15px 0;
    text-align: center;
}

.language-switcher {
    margin-top: 10px;
    padding-bottom: 10px;
}

    .language-switcher a {
        text-decoration: none;
        margin: 0 5px;
    }

        .language-switcher a:hover {
            text-decoration: underline;
        }


.logo {
    font-size: 24px;
    font-weight: bold;
}

    .logo a {
        text-decoration: none;
        color: #333;
        font-size: 24px;
    }

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
}

    nav a:hover {
        text-decoration: underline;
    }


.image-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 1200px;
    margin: 20px auto;
    gap: 10px;
}

.image-option {
    width: 120px;
    text-align: center;
    cursor: pointer;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}

    .image-option:hover {
        transform: scale(1.05);
        box-shadow: 0 0 5px rgba(0,0,0,0.15);
    }

    .image-option img {
        max-width: 100%;
        height: 50px;
        display: block;
        margin: 0 auto 5px auto;
    }

    .image-option span {
        font-size: 12px;
        display: block;
        color: #333;
    }

    .image-option.selected {
        border: 2px solid #007BFF;
        box-shadow: 0 0 5px rgba(0,0,0,0.2);
        transform: scale(1.05);
    }

.upload-option .upload-plus {
    font-size: 48px;
    line-height: 80px;
    text-align: center;
    color: #aaa;
}


.upload-option .clear-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(0,0,0,0.5);
    color: #fff;
    padding: 2px 5px;
    font-size: 12px;
    border-radius: 3px;
    cursor: pointer;
    display: none;
}

.upload-option:hover .clear-btn {
    display: block;
}


@media (max-width: 600px) {
    .image-option {
        width: 45%;
    }
}

.display-area {
    position: relative;
    width: 50%;
    margin: 20px auto;
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    border-radius: 5px;
    overflow: hidden;
    text-align: center;
    padding: 20px;
}

#selected-screen {
    width: 100%;
    max-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
    border-radius: 5px;
    overflow: hidden;
}


    #selected-screen.fs-active {
        width: 100%;
        height: 100%;
    }

        #selected-screen.fs-active #selected-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

#selected-image {
    max-width: 100%;
    height: auto;
    display: block;
}

#image-name {
    margin-top: 10px;
    font-size: 16px;
    color: #333;
}

#fullscreen-icon {
    position: absolute;
    bottom: 5px;
    right: 20px;
    cursor: pointer;
    font-size: 24px;
    color: #fff;
    background-color: rgba(0,0,0,0.3);
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

    #fullscreen-icon:hover {
        background-color: rgba(0,0,0,0.5);
    }


.intro-container {
    max-width: 1200px; 
    margin: 40px auto; 
    padding: 30px;
    background-color: #fff; 
    border: 1px solid #ddd; 
    border-radius: 5px; 
    box-shadow: 0 0 10px rgba(0,0,0,0.1); 
}

    .intro-container h1 {
        font-size: 24px;
        margin-bottom: 20px;
        font-weight: bold;
        line-height: 1.3;
    }

    .intro-container h2 {
        font-size: 18px;
        margin-top: 30px;
        margin-bottom: 10px;
        font-weight: bold;
    }

    .intro-container h3 {
        font-size: 16px;
        margin-top: 20px;
        margin-bottom: 6px;
        font-weight: bold;
    }

    .intro-container p {
        margin: 0 0 16px 0; 
        text-align: justify; 
    }