* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background: black;
    color: white;
    font-family: 'Space Mono', monospace;
}
.container {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 50px;
    padding-bottom: 50px;
}
.optin{
    width: 500px;
    max-width: 90%;
}
.logo {
    width: 600px;
    max-width: 92%;
    margin-bottom: 30px;
}
#countdown {
    font-size: clamp(2rem, 5vw, 2rem);
    letter-spacing: 0.1em;
}
.video {
    width: min(400px, 80vw);
    opacity: 0.9;
    pointer-events: none; /* évite interaction souris */
}
.video video {
    width: 100%;
    height: auto;
    display: block;
}