:root {

    --clr-bg-primary: #fff;
    --clr-text-primary: #333;
    --clr-text-secondary: #454545;
    --clr-text-tertiary: #666;

    --clr-link: #0068bd;

    --clr-header-primary: #1865d2;
    --clr-header-secondary: #176ce3;
}

@media (prefers-color-scheme: dark) {
    :root {
        --clr-bg-primary: #242424;
        --clr-text-primary: #f0f0f0;
        --clr-text-secondary: #cccccc;
        --clr-text-tertiary: #aaaaaa;

        --clr-link: #4ea3ff;

        --clr-header-primary: #1d4ed8;
        --clr-header-secondary: #2563eb;
    }
}  

body {
    font-family: 'Inter', sans-serif;
    font-size: 1.125rem;
    letter-spacing: 0.01em;
        line-height: 1.6;
        font-weight: 400;
        text-rendering: optimizeLegibility;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    
    margin: 0;
    padding: 0;
    background-color: var(--clr-bg-primary);
    color: var(--clr-text-primary);
}

header {
    position: relative;
    background: linear-gradient(to bottom, var(--clr-header-primary), var(--clr-header-secondary));
    color: var(--clr-bg-primary);
    padding: 20px 0;
}

.container{
    max-width: 1200px;
    margin: 0 auto;    
}

.hero-text {
    width: 48vw;
    max-width: 750px;
    margin-left: 15px;
    margin-right: 20px;
}

.app-images {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.app-images img {
    position: absolute;
    top: 10vh;
    left: 60vw;
    bottom: 0;
    height: 440px;
    object-fit: cover;
}


.logo img {
    height: 180px;
    margin-left: 15px;
}

h1 {
    font-size: 1.85rem;
    padding: 0;
    margin: 0;
    margin-top: 15px;
    padding-right: 20px;
}

a {
    color: var(--clr-link);
    text-decoration: none;
}

.subtitle {
    font-size: 1.55rem;
    color: var(--clr-text-secondary);
    padding: 0;
    margin: 0;
    padding-right: 20px;
}

.description {
    font-size: 1.2rem;
    padding: 0;
    margin: 0;
    margin-top: 40px;
    padding-right: 20px;
}

.content {
    padding: 20px;
    margin: 0 auto;
}

h2 {
    font-size: 1.5rem;
    margin-top: 40px;
}


.features {
    margin-top: 40px;
    padding: 0;
}

li {
    font-size: 1.2rem;
    margin-top: 1rem;
    list-style: none;
}

.download {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 60px;
}

footer {
    padding: 20px;
    text-align: center;
    margin-top: 100px;
    margin-bottom: 50px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-direction: row;
    margin: 0;
    padding: 0;
    gap: 30px;
}
.footer-links a {
    font-size: 1.2rem;
}


footer  p {
    font-size: 1rem;
    margin-top: 30px;
    color: var(--clr-text-tertiary);
}

@media screen and (max-width: 850px) {
    
    .app-images img {
        position: static;
        height: 400px;
        margin: 30px 0;
    }

    .hero-text {
        width: 95vw;
    }

    .footer-links {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
}