:root {
    --black-color: #000000;
    --white-color: #ffffff;
    --dark-grey-color: #636263;

    --animationSpeed: 40s;
    --slider-size: 160px;
    --slide-numb: 7;
    --slider-fade: 100px;

    --s-space: 25px;
    --m-space: 50px;
    --l-space: 100px; 

    --cont-tb: 100px;
    --cont-lr: 50px; 
}

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

    font-family: 'Montserrat', sans-serif;
    text-decoration: none;
    color: inherit;
}

html {
    position: relative;
    scroll-behavior: smooth;
}

body {
    position: relative;
    height: 100vh;
    width: 100%;
    background-color: var(--black-color);
}

.container {
    margin: 0 auto;
    width: 800px;
    padding: var(--cont-tb) var(--cont-lr);
}

.title {
    font-size: 20px;
    letter-spacing: .2em;
    text-transform: uppercase;
    font-weight: 500;
    color: var(--white-color);
    margin-bottom: var(--m-space);
}

.sub-title {
    font-size: 20px;
    letter-spacing: .2em;
    text-transform: uppercase;
    font-weight: 500;
    color: var(--white-color);
    margin-top: var(--m-space);
    margin-bottom: var(--m-space);
}

.font-bold {
    font-weight: bold;
    color: var(--primary-color);
}

.font-scolor {
    color: var(--primary-color);
}

/* --- SECTION HEADER --- */

header {
    position: relative;
    height: 450px;
    width: 100%;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;

    background: url("https://www.alexjuanofficiel.fr/img/alexjuan/banner.jpeg");
    background-size: cover;
    background-position: center center;
}

header .logo {
    width: 100px;
    margin-top: auto;
    margin-bottom: auto;
    padding-top: calc(var(--s-space) + var(--m-space));
}

header .label {
    position: absolute;
    top: 25px;
    left: 25px;
    width: 60px;
    filter: brightness(0) invert(1);
}

header .social_banner {
    display: flex;
    margin-bottom: var(--s-space);
}

header .social_banner .social_icon {
    height: 50px;
    width: 50px;

    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;

    overflow: hidden;
}

header .social_banner .social_icon img {
    width: 50%;
    filter: brightness(0);
    transition: all .2s;
}

header .social_banner .social_icon img:hover {
    width: 60%;
}

/* --- SECTION CONTENT --- */

.content {
    width: 100%;
    background-color: color-mix(in srgb, var(--primary-color) 60%, black);
}

.content p {
    font-size: 18px;
    color: var(--white-color);
    line-height: 1.3em;
    margin-bottom: 15px;
}

.container .title {
    text-align: left;
}

/* --- SECTION SONGS CONTENT --- */

.songs-content {
    height: 230px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 25px;
}

.songs-content .arrow {
    cursor: pointer;
    font-size: 2em;
    user-select: none;
    color: var(--dark-grey-color);
}

/* --- SECTION SINGLE --- */

.singles {
    text-align: center;
    width: 100%;
}

.singles ul {
    display: flex;
    gap: 25px;

    margin: 25px 0;
}

.singles ul li {
    height: 100%;
}

.singles a {
    color: var(--primary-color);
}

.singles ul li p {
    margin-top: 15px;
    color: var(--white-color);
}

.single {
    position: relative;
    width: 100%;

    display: flex;
    align-items: center;
    justify-content: center;

    color: var(--white-color);

    background: linear-gradient(rgba(0,0,0, 0.5),rgba(0,0,0,0.2)), var(--cover);
    background-size: cover;
    background-position: center center;
}
.single.large { height: 400px; }
.single.small { height: 150px; width: 180px; }
.single.small i { font-size: 1.3em!important; }

.single i {
    font-size: 2em;
    font-weight: 600;
}


/* --- SECTION PARTNERS --- */

@keyframes scroll {
	0% { transform: translateX(0); }
	100% { transform: translateX(calc((-1 * var(--slider-size)) * var(--slide-numb)))}
}

.partners {
    width: 100%;
}

.partners-slider {
	height: 100px;
	margin: auto;
	overflow: hidden;
	position: relative;
	width: 100%;
}

.partners-slider::after {
    content: '';
    position: absolute;
    left: 0; 
    right: 0;
    top: 0; 
    bottom: 0;
    background-image:
      linear-gradient(to right, #000000, rgba(0,128,128,0) var(--slider-fade)),
      linear-gradient(to left , #000000, rgba(0,128,128,0) var(--slider-fade));
}

.partners-slider::after {
    right: 0;
    top: 0;
    transform: rotateZ(180deg);
}

.partners-slider::before {
    left: 0;
    top: 0;
}

.partners-slide-track {
    z-index: 1;
    animation: scroll var(--animationSpeed) linear infinite;
    display: flex;
    width: calc(var(--slider-size) * (var(--slide-numb) * 2));
}

.partner-slide {
    height: 100px;
    width: var(--slider-size);

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 25px;
    overflow: hidden;
}

.partner-slide .partner-icon {
    height: 100%;
    filter: brightness(0) invert(1);
}

/* --- SECTION FOOTER --- */

footer {
    height: 150px;
    width: 100%;

    display: flex;
    align-items: center;
    justify-content: center;
}

footer p {
    color: var(--white-color);
}

footer a {
    color: var(--white-color);
    margin-left: 10px;
    border-left: 1px solid;
    padding-left: 10px;
}

/* --- MEDIAS QUERIES --- */

@media screen and (max-width: 800px) {

    .container { width: 100%; }
    
}

@media screen and (max-width: 600px) {
    :root {
        --slider-fade: 50px;
    }
}

@media screen and (max-width: 500px) {
    :root {
        --s-space: 25px;
        --m-space: 50px;
        --l-space: 50px; 

        --cont-tb: 50px;
        --cont-rl: 25px;
    }

    header { height: 400px; }
    
    .single.large { height: 300px; }
    .single.small i { font-size: 1.3em; }
}

@media screen and (max-width: 450px) {

    .font-bold { display: block; }

}