* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;

    background-color: #05070b;
    background-image: url("background.png");
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-attachment: fixed;

    color: white;
    font-family: "Barlow Condensed", sans-serif;
}


nav {
    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 1.5rem 3rem;
}

.logo {
    color: white;
    text-decoration: none;

    font-size: 4rem;
    font-weight: 600;

    letter-spacing: -0.03em;
}

.back-link {
    color: white;
    text-decoration: none;

    font-size: 1rem;

    opacity: 0.6;
}

.back-link:hover {
    opacity: 1;
}




section {
    width: 100%;
    max-width: 1200px;

    margin: 0 auto;

    padding: 10rem 3rem;
}

.section-label {
    margin: 0 0 1rem;

    font-size: 0.8rem;

    letter-spacing: 0.15em;

    opacity: 0.5;
}




#hero {
    min-height: 80vh;

    display: flex;
    flex-direction: column;
    justify-content: center;
}

#hero h1 {
    margin: 0 0 1.5rem;

    font-size: clamp(6rem, 15vw, 12rem);

    font-weight: 500;

    line-height: 0.8;

    letter-spacing: -0.03em;
}

.hero-description {
    max-width: 600px;

    margin: 0;

    font-size: clamp(1.4rem, 2.5vw, 2rem);

    line-height: 1.4;

    opacity: 0.7;
}




#about h2,
#coming-soon h2,
#technology h2 {
    margin: 0 0 3rem;

    font-size: clamp(3rem, 6vw, 5rem);

    line-height: 0.9;

    font-weight: 500;
}

#about > p:last-child,
#coming-soon > p:last-child {
    max-width: 700px;

    margin: 0;

    font-size: 1.4rem;

    line-height: 1.5;

    opacity: 0.6;
}




.tech-list {
    display: flex;

    flex-wrap: wrap;

    gap: 1rem;
}

.tech-list span {
    padding: 0.6rem 1rem;

    border: 1px solid rgba(255, 255, 255, 0.15);

    border-radius: 999px;

    font-size: 1rem;

    opacity: 0.7;
}




footer {
    padding: 4rem 3rem 2rem;

    text-align: center;
}

footer p {
    margin: 0;

    font-size: 0.9rem;

    opacity: 0.5;
}




@media (max-width: 768px) {

    nav {
        padding: 1.5rem;
    }

    .logo {
        font-size: 2.5rem;
    }

    .back-link {
        font-size: 0.9rem;
    }

    section {
        padding: 8rem 1.5rem;
    }

    #hero {
        min-height: 75vh;
    }

    #hero h1 {
        font-size: clamp(5rem, 20vw, 8rem);
    }

    #about h2,
    #coming-soon h2,
    #technology h2 {
        font-size: clamp(3rem, 14vw, 5rem);
    }

    footer {
        padding: 4rem 1.5rem 2rem;
    }
}