@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&family=Orbitron:wght@600;800&display=swap');

:root {
    --font-main: 'Montserrat', sans-serif;
    --font-heading: 'Orbitron', sans-serif;
    
    --color-neon-cyan: #00FFFF;
    --color-accent-dark: #008888;
    --color-background-dark: #1a1a1a;
    --color-background-card: #242424;
    --color-text-light: #e0e0e0;
    --color-text-secondary: #bdbdbd;

    --card-shadow: 0 4px 15px rgba(0, 255, 255, 0.2);
    --spacing-lg: 60px;
    --spacing-md: 25px;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-text-light);
    background-color: var(--color-background-dark);
}

a {
    color: var(--color-neon-cyan);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--color-accent-dark);
}

.youtube-background-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    pointer-events: none;
}

.youtube-player {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2;
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    text-align: center;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.8);
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: 5rem;
    color: var(--color-neon-cyan);
}

.hero-content .lead {
    font-size: 1.5rem;
    font-weight: 400;
}

.banner_event {
    background-color: var(--color-neon-cyan);
    color: var(--color-background-dark);
    padding: var(--spacing-md);
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    font-family: var(--font-heading);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    text-transform: uppercase;
}

.longueurTrait {
    padding: var(--spacing-lg) 5%;
    text-align: center;
}

.trait {
    border-bottom: 2px solid var(--color-accent-dark);
    line-height: 0.1em;
    margin: 10px 0 20px;
}

.textX {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    background: var(--color-background-dark);
    padding: 0 var(--spacing-md);
    color: var(--color-neon-cyan);
    font-weight: 800;
    text-transform: uppercase;
    text-shadow: 0 0 8px rgba(0, 255, 255, 0.4);
}

.contenueCard {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    padding: 15px 5% var(--spacing-lg) 5%;
}

.card {
    flex: 1 1 300px;
    max-width: 350px;
    border: 1px solid #333;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    background-color: var(--color-background-card);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow);
}

.card-body {
    background: var(--color-background-card);
    padding: var(--spacing-md);
}

.imgCard {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin: 0 auto 15px auto;
    display: block;
    filter: drop-shadow(0 0 5px var(--color-neon-cyan));
}

.titreCard {
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--color-neon-cyan);
}

.card-text {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.video-responsive-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    max-width: 900px; 
    margin: 15px auto;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
    border: 2px solid var(--color-neon-cyan);
    border-radius: 8px;
}

.video-responsive-container.large-video {
    max-width: 90%;
}

.video-responsive-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 6px;
}

.flexible-container {
    display: flex;
    flex-wrap: wrap;
    padding: var(--spacing-md);
    gap: 20px;
}

.left-col {
    flex: 1 1 60%; 
}

.right-col {
    flex: 1 1 30%; 
}

@media only screen and (max-width: 768px) {
    .left-col, .right-col {
        flex: 1 1 100%;
    }
}