:root {
    --dark-bg: rgba(39, 39, 39, 1);
    --white: rgba(255, 255, 255, 1);
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark-bg);
    overflow-x: hidden;
    font-size: 16px;
}

.container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 90%;
    max-width: 800px;
}

.inria-serif {
    font-family: 'Inria Serif', serif;
    font-weight: 400;
    color: var(--white);
}

.jacques-francois {
    font-family: 'Jacques Francois', serif;
    font-weight: 400;
    color: var(--white);
}

.brand-name {
    position: absolute;
    top: 2rem;
    left: 2rem;
    margin: 0;
    width: clamp(11rem, 25vw, 30rem);
    height: clamp(3rem, 8vw, 8rem);
}

.tagline {
    font-size: clamp(0.8rem, 1.8vw, 2rem);
    margin: 0 0 1rem 0;
    opacity: 0.9;
}

.main-heading {
    font-size: clamp(3rem, 6.5vw, 7rem);
    margin: 0.5rem 0;
    font-weight: 400;
}

.subheading {
    font-size: clamp(0.9rem, 1.2vw, 1.2rem);
    margin: 1rem 0 0 0;
    opacity: 0.8;
    letter-spacing: 0.1em;
    text-align: left;
    margin-left: calc(58% - clamp(3rem, 6.5vw, 7rem) * 3.5);
}

@media screen and (max-width: 1919px) {
    .subheading {
        font-size: clamp(0.8rem, 1.5vw, 1.1rem);
        margin-left: calc(50% - clamp(2.5rem, 5.5vw, 6rem) * 3.5);
    }
}
@media screen and (max-width: 400px) {
    .main-heading {
        font-size: 2.6rem;
    }
}