* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(135deg, #f4f4f4, #ffffff);
    color: #222;
}

.page {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px 15px;
}

.carte {
    width: 100%;
    max-width: 760px;
    background: #ffffff;
    border-radius: 18px;
    padding: 35px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border-top: 6px solid #e30613;
}

.entete {
    display: inline-block;
    background: #e30613;
    color: #ffffff;
    padding: 8px 18px;
    border-radius: 30px;
    font-weight: bold;
    font-size: 14px;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

h1 {
    margin: 10px 0 15px;
    font-size: 34px;
    color: #222;
}

.texte {
    font-size: 18px;
    line-height: 1.6;
    color: #555;
    margin-bottom: 28px;
}

.bouton {
    display: inline-block;
    background: #e30613;
    color: #ffffff;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    padding: 15px 32px;
    border-radius: 50px;
    transition: all 0.25s ease;
    box-shadow: 0 8px 18px rgba(227, 6, 19, 0.25);
}

.bouton:hover {
    background: #b9000f;
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(227, 6, 19, 0.35);
}

.lien {
    margin: 18px 0 25px;
    font-size: 14px;
    word-break: break-all;
}

.lien a {
    color: #666;
    text-decoration: none;
}

.lien a:hover {
    color: #e30613;
    text-decoration: underline;
}

.video-container {
    width: 100%;
    max-width: 100%;
    margin: 30px auto 20px;
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.video-container video {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
}

.info {
    margin-top: 25px;
    font-size: 14px;
    color: #777;
    background: #f8f8f8;
    padding: 12px 18px;
    border-radius: 10px;
}

/* Responsive mobile */
@media (max-width: 600px) {
    .carte {
        padding: 25px 18px;
        border-radius: 14px;
    }

    h1 {
        font-size: 26px;
    }

    .texte {
        font-size: 16px;
    }

    .bouton {
        width: 100%;
        padding: 14px 20px;
        font-size: 16px;
    }
}