:root 
{
    --header_content_spacing: 25px;
}

* 
{
    padding: 0;
    margin: 0;

    font-family: 'Roboto', sans-serif;
}

time
{
    font-style: italic;
    font-family: serif;
    font-size: 13px;
    color: #aaaaaa;
    white-space: nowrap;
}

.container
{
    max-width: 1200px;
    margin: 0 auto;
}

.block 
{
    background-color: #ebebeb;
    padding: 20px;
    margin-bottom: 25px;
}


.social i
{            
    color: #aaaaaa;
}
.social i:hover
{            
    color: #333333;
    cursor: pointer;
}

/*HEADER*/
/*logo*/
header > div.container
{
    height: 120px;
    line-height: 120px;
}
header img 
{
    float: left;
    max-height: 100px;
    margin-top: 10px;
    margin-right: 25px;
}
header h1
{
    display: inline;
}

/*search*/
header input[type="text"]
{
    padding: 10px;
    font-size: 16px;
    outline: none;
    border: 1px solid #aaaaaa;
    width: 200px;
    transition: width 0.4s ease-in-out;
}
header input[type="text"]:focus
{
    border-color: #2D898B;
    width: 300px;
}
header .social i:first-of-type
{
    margin-right: 50px;
}
/*END HEADER*/

/*SOCIAL ICONS*/
header div.social
{
    float: right;
}
header .social > i
{
    font-size: 25px;
    margin: 5px 10px;
}
/*END SOCIAL ICONS*/

/*NAVIGATION*/
nav
{
    overflow: hidden;
    background-color: #333;
    min-height: 30px;
    width: 100%;
}
nav ul
{
    list-style-type: none;
    float: right;
    margin: 0;
}
nav ul li 
{
    float: left;
    height: 50px;
    line-height: 50px;
}

nav ul li a 
{
    color: white;
    text-align: center;
    padding: 8px 16px;
    text-decoration: none;
    font-weight: bolder;
}
nav ul li a:hover 
{
    border-top: 2px solid white;
    border-bottom: 2px solid white;
}
.open-close-btn
{
    display: none;
}
/*END NAVIGATION*/

/*MAIN*/
main
{
    box-sizing: border-box;
    width: 70%;
    float: left;
    margin-top: var(--header_content_spacing, 25px);
    min-height: 800px;
}
/*END MAIN*/

/*CARDS*/
.cards
{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    grid-gap: 20px;
    justify-content: center;
}
.card 
{
    background: white;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
    transition: 0.3s;
    overflow: hidden;
}
.card:hover 
{
    box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2);
}
.card img,
.card .content
{
    cursor: pointer;
}
.card h4 
{
    font-weight: bolder;
}

.card img
{
    width: 100%;
    transition: all 0.3s;
}
.card:hover img
{
    transform: scale(1.1);
}

.card .content p
{
    font-family: serif;
}
.card .content 
{
    padding: 10px 15px;
    height: 100px;
    overflow-y: hidden;
    text-overflow: ellipsis;
}

.card .footer
{
    padding: 5px;
    float: right;
}
.card .footer.social i > span
{
    font-weight: lighter;
    margin-left: 3px;
    font-size: 12px;
}
/*END CARDS*/

/*ASIDE*/
aside
{            
    box-sizing: border-box;
    padding-left: 15px;
    width: 30%;
    float: left;
    margin-top: var(--header_content_spacing, 25px);
}
 
/*author*/
aside .author
{
    display: table;
}
aside .author.block img
{
    float: left;
    height: 150px;
    margin-right: 15px;
}
/*social*/
aside .social.block
{
    display: grid;
    font-size: 25px;
    grid-template-columns: repeat(auto-fit, 25px);
    grid-gap: 20px;
    justify-content: center;
}
/*subscribe*/
aside .subscribe.block input
{
    box-sizing: border-box;
    padding: 10px;
    margin: 10px 0;
    font-size: 16px;
    outline: none;
    border: 1px solid #aaaaaa;
    width: 100%;
}
aside .subscribe.block input:focus
{
    border-color: #2D898B;
}

aside .subscribe.block input[type="button"]
{
    background-color: black;
    color: white;
    border: 3px solid white;
    width: 100%;
    opacity: 0.7;
    border: 0;
}
aside .subscribe.block input[type="button"]:hover 
{
    cursor: pointer;
    opacity: 1; 
}

/*search*/
aside .search.block 
{

    display: grid;
    grid-template-columns: repeat(4, 1fr);
    justify-content: center;   
}

aside .search.block input
{
    grid-column: 1/4;

    margin: 0;
    border: none;

    box-sizing: border-box;

    padding: 10px;
    font-size: 16px;
    outline: none;
    border: none;
    width: 100%;
}

aside .search.block button
{
    grid-column: 4;

    float: right;
    padding: 5px 10px;

    background: #d7d7d7;
    font-size: 17px;
    border: none;
    outline: none;
    cursor: pointer
}
aside .search.block button:hover
{
    background: #ccc;
}
aside .search.block button:focus
{
    background: #bbb;
}

/*tags*/
aside .tags.block div
{
    width: 70%;
    text-align: center;
    margin: 0 auto;
}

aside .tags.block .tag
{
    margin: 0 2px;
    cursor: pointer;
}
aside .tags.block .tag:hover
{
    text-decoration: underline;
}
aside .tags .tag:before 
{
    content: "#";
    margin-right: 2px;
}
aside .tags.block div::selection,
aside .tags.block .tag::selection
{
    background-color: darkgray;
    color: white;
}

/*comments*/
.comment 
{
    border: 2px solid #ccc;
    background-color: #eee;
    border-radius: 5px;
    padding: 15px;
    margin: 15px 0;
}

.comment::after
{
    content: "";
    clear: both;
    display: table;
}

.comment img
{
    float: left;
    margin-right: 15px;
    width: 90px;
    border-radius: 50%;
}
.comment .text
{
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.comment .info
{
    margin-bottom: 20px;
}
.comment .author 
{
    display: inline;
    font-size: 20px;
    margin-right: 10px;
}
/*END ASIDE*/

/*FOOTER*/

footer
{
    float: left;
    margin-top: 25px;
    width: 100%;
    text-align: center;
}
footer > div
{
    padding: 5px 0;
    background-color: #333;
    margin-bottom: 10px;
}
footer img
{
    filter: invert(100%);
    width: 50px;
}
footer a
{
    text-decoration: none;
    color: black;
}
footer a:hover
{
    text-decoration: underline;
}
/*END FOOTER*/





/*MEDIA*/
/*slightly change aside*/
@media (min-width: 900px) and (max-width: 988px)
{
    /*ASIDE*/
    /*author*/
    aside .author.block
    {
        text-align: center;
    }
    aside .author.block h2
    {
        float: left;
    }
    aside .author.block img
    {
        float: none;
        width: 100%;
        height: auto;
        margin-right: 0px;
    }
    /*comment*/
    .comment 
    {
        text-align: center;
    }
    .comment img 
    {
        margin: auto;
        float: none;
        display: block;
    }
    .comment .author 
    {
        display: block;
        font-size: 20px;
        margin-right: 0px;
    }
    /*END ASIDE*/
}


/*on small screen*/
/*change header*/
/*change menu*/
/*change structure*/
@media (max-width: 899px)
{    
    /*HEADER*/
    header > div.container 
    {
        height: 140px;
    }
    /*image to center*/
    header img 
    {
        position: absolute;
        left: calc(50% - 50px);
        top: 25px;
        margin: 0px;
    }
    /*search icon*/
    header .social i:first-of-type
    {
        position: absolute;
        right: 5px;
        top:5px;
        margin: 5px 10px;
    }
    /*hide 
    blog name, 
    search field 
    and all ico except search one*/
    header h1,
    header input[type="text"],
    header .social i:not(:first-of-type)
    {
        display: none;
    }
    /*END HEADER*/
    
    
    /*MAIN*/
    main
    {
        width: 100%;
    }
    main.block 
    {
        margin-top: 305px;
    }
    /*END MAIN*/
    
    /*ASIDE*/
    aside
    {
        width: 100%;
        padding-left: 0px;
    }
    aside .author.block 
    {
        box-sizing: border-box;
        width: 100%;
        position: absolute;
        top: 195px;
        height: 250px;
    }
    /*END ASIDE*/
    
    
    /*MENU OVERLAY*/
    .overlay 
    {
        width: 0%;/*will increase if menu is open */

        height: 100%; 

        position: fixed;
        z-index: 1;
        top: 0;
        left: 0;
        background-color: rgb(0,0,0);
        background-color: rgba(0,0,0, 0.9);
        overflow-x: hidden;
        transition: 0.5s;
    }

    .overlay-content 
    {
        position: relative;
        top: 25%;
        width: 100%;
        text-align: center;
        margin-top: 30px;
    }
    .overlay li
    {
        float: none;
        margin: 10px 0;
    }
    .overlay li a 
    {
        padding: 8px;
        text-decoration: none;
        font-size: 36px;
        color: #818181;
        display: block;
    }

    .overlay li a:hover, 
    .overlay li a:focus 
    {
        color: #f1f1f1;
    }
    
    header .open-close-btn
    {
        margin: 5px 10px;
        display: block;
        width: 40px;
        height: 32px;
        position: absolute;
        top: 2px;
        left: 2px;

        cursor: pointer;

        opacity: 0; /* hide this input*/
        z-index: 5; /* and place it over its view */
    }
    /*move button to right corner*/
    header .open-close-btn:checked
    {
        position: fixed;
        top: 7px;
        right: 25px;
        left: unset;
    }
    /*show overlay on check*/
    header .open-close-btn:checked ~ nav > .overlay
    {
        width: 100%;
    }

    /*open button's view*/
    /*3 span forms 3 black horizontal lines*/
    header .menu .open-close-btn ~ span
    {
        display: block;
        width: 33px;
        height: 4px;
        position: absolute;
        left: 5px;

        background: black;
        margin: 5px 10px;

        z-index: 1;

        transform-origin: 4px 0px;
    }

    header .menu .open-close-btn ~ span:nth-of-type(1)
    {
        top: 5px;
    }
    header .menu .open-close-btn ~ span:nth-of-type(2)
    {
        top: 15px;
    }
    header .menu .open-close-btn ~ span:nth-of-type(3)
    {
        top: 25px;
    }
    header .menu .open-close-btn ~ span:first-child
    {
        transform-origin: 0% 0%;
    }

    header .menu .open-close-btn ~ span:nth-last-child(2)
    {
        transform-origin: 0% 100%;
    }
    /*end open button's view*/

    /*close button's view*/
    /*rotate all black lines into a crossmark*/
    header .menu .open-close-btn:checked ~ span
    {
        opacity: 1;
        transform: rotate(45deg) translate(-2px, -1px);
        background: white;
        z-index: 3;
        position: fixed;
        top: 15px;
        right: 25px;
        left: unset;
    }
    /*hide middle line*/
    header .menu .open-close-btn:checked ~ span:nth-last-child(3)
    {
        opacity: 0;
        transform: rotate(0deg) scale(0.2, 0.2);
    }

    /*last line go the other direction*/
    header .menu .open-close-btn:checked ~ span:nth-last-child(2)
    {
        transform: rotate(-45deg) translate(0, -1px);
        top: 33px;
    }
    /*end close button's view*/
    
    /*END MENU OVERLAY*/
}

/*END MEDIA*/