:root {
    --primary-light: #333;
    --primary: #222;
    --primary-dark: #111;
    --grey-light: #EFEFEF;
    --grey: #676E79;
    --red: #C8102E;
    --blue-grey: #566479;
    --blue: #035AA6;
    
    
    --basic-font: 'Playfair Display', serif;
    --comicbook-font: 'Bangers', cursive;
}

body {
    background-color: var(--primary);
    color: var(--grey-light);
    text-align: center;
    margin: 0;
    font-family: var(--basic-font);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--comicbook-font);
    font-weight: 400;
}

/* Header styles */
header {
    position: fixed;
    top: 0;
    z-index: 20;
    width: 100%;
    background-color: var(--primary-light);
    margin-bottom: 1rem;
}

.main-headline {
    font-family: var(--comicbook-font);
    padding: 5rem 0 1rem 0;
    background-color: var(--primary);
    margin: 0;
}

.main-nav {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    padding: 1rem 0;
}

.main-nav .nav-link {
    font-family: var(--comicbook-font);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all .2s linear;
    border-bottom: 1px solid transparent;
}

.main-nav .nav-link.all {
    
}

.main-nav .nav-link.heroes {
    --link-hover-color: var(--blue);
}

.main-nav .nav-link.villains {
    --link-hover-color: var(--red);
}

.main-nav .nav-link:hover {
    border-bottom-color: var(--link-hover-color);
    color: var(--link-hover-color);
}

/* Main styles */
main {
    margin-bottom: 4rem;
    padding-top: 2rem;
    background-color: var(--primary-light);
}

/* Character card styles */

.character-cards-container {
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(200px, 300px));
    grid-gap: 15px;
    justify-content: space-around;
}

.character-card-outer {
    margin: 0 auto 2rem auto;
    transition: box-shadow .2s ease-out, transform .2s ease-out;
    perspective: 1000px;
    height: 445px;
    width: 255px;
}

.character-card-outer:hover, .character-card-outer.flipped {
    cursor: pointer;
    transform: scale(1.1);
    box-shadow: 0 0 8px 8px var(--character-color);
}

.character-card-outer.hero {
    --character-color: var(--blue); 
}

.character-card-outer.villain {
    --character-color: var(--red); 
}

.character-card-outer.hero .name {    
    color: var(--character-color);
}

.character-card-outer.villain .name {    
    color: var(--character-color);
}

.character-card-outer.flipped {

}

.character-card-outer.flipped .character-card-inner {
    transform: rotateY(180deg);
}

.character-card-inner {
    background-color: var(--blue-grey);
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.character-card-inner .fa-times {
    position: absolute;
    font-size: 2.5rem;
    right: 5px;
    top: 5px;
    display: none;
    cursor: pointer;
}

.character-card-front, .character-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.character-card-back {
    transform: rotateY(180deg);
    background-color: var(--blue-grey);
}

.character-card-front img {
    height: 340px;
    width: 255px;
}

.character-card-front .name {
    font-size: 1.7rem;
    font-family: var(--comicbook-font);
    font-weight: 400;
    letter-spacing: 3px;
}

.character-card-front .publisher {
    font-size: 1rem;
}

.skills {
    width: 80%;
    margin: 0 auto;
}

.skill {
    width: 100%;
    background-color: var(--primary-light);
    position: relative;
    margin-bottom: 15px;
}

.skill-name {
    color: var(--grey-light);
    font-family: var(--comicbook-font);
    position: absolute;
    top: 2px;
    transform:translateX(-50%);
}

.skillbar {
    text-align: right;
    padding-top: 10px;
    padding-bottom: 10px;
    width: 0%;
    transition: width .7s linear;
}

.character-card-outer.hero .skillbar {
    background-color: var(--blue);
}

.character-card-outer.villain .skillbar {
    background-color: var(--red);
}

.character-card-outer.flipped .skillbar {
    width: 75%;
    transition-delay: .5s;
}

/* Footer styles */
footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: var(--primary);
    padding: 1rem 0;
    font-size: .7rem;
}

footer a {
    color: var(--grey-light);
    text-decoration: underline;
}