#form_visibility_btn {
    background-color: #eee;
    color: #444;
    cursor: pointer;
    padding: 1em;
    margin: 25px 0 0 0;
    width: 100%;
    border-radius: 10px;
    text-align: left;
}

.collapse_icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-right: 10px;
    background: url(../media/up-arrow.png) no-repeat center center;   
    background-size: contain;
    vertical-align: middle;
}

.collapse_icon.down {
    background-image: url(../media/down-arrow.png);
}

#form_visibility_btn:hover .collapse_icon,
.collapse_icon:hover {
    transform: scale(1.2);
    transition: transform 0.2s;
}

#form_visibility_btn.active,
#form_visibility_btn:hover {
    background-color: #ccc;
}

#form_visibility_btn.active{
    border-radius: 10px 10px 0 0;
}

#collapsible_container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.input_form {
    margin: 0 0 1em 0;
    padding: 1em;
    border: 2px solid #0b420d;
    background: #fafafa;
}

#add_image_form {
    border-radius: 0px 0px 10px 10px;
    margin-bottom: 0;
    border-top: none
}

#add_comment_form, #auth_form {
    border-radius: 10px;
}

.form_element{
    width: 100%;
    box-sizing: border-box;
    padding: 10px 10px;
    margin: 0 0 0.5em 0;
    border: 1px solid #d6d6d6;
    border-radius: 5px;
    font: inherit;
    background: #fff;
}

.form_element::file-selector-button {
    border: 1px solid #d6d6d6;
    border-radius: 5px;
    padding: 5px 10px;
    background: #f0f0f0;
    cursor: pointer;
    font: inherit;
}
.form_element::file-selector-button:hover {
    background-color: #e0e0e0;
    transition: background-color 0.2s;
}

#comment_content {
    height: 60px;
    min-height: 80px;
    resize: vertical;
}

.form_element:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.15);
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.form_btn_container {
    display: flex;
    gap: 10px;
}