:root {
    color-scheme: dark;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #101414;
    color: #e8ece8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 80% 10%, #273c35 0, transparent 30rem),
        #101414;
}

main {
    width: min(960px, calc(100% - 40px));
    margin: auto;
}

header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 28px 0;
    color: #b7c7bd;
}

.mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border: 1px solid #789486;
    border-radius: 50%;
}

.hero {
    padding: 12vh 0 9vh;
    max-width: 760px;
}

.eyebrow {
    color: #8eaa9b;
    letter-spacing: .18em;
    font-size: 12px;
}

h1 {
    margin: 16px 0;
    font-size: clamp(42px, 8vw, 78px);
    line-height: .98;
    letter-spacing: -.045em;
}

.intro {
    max-width: 600px;
    color: #aeb9b3;
    font-size: 19px;
    line-height: 1.65;
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

article {
    padding: 24px;
    border: 1px solid #29332e;
    border-radius: 18px;
    background: rgba(24, 31, 28, .72);
}

article h2 {
    margin-top: 0;
    font-size: 18px;
}

article p,
footer {
    color: #8f9b95;
    line-height: 1.55;
}

footer {
    padding: 70px 0 30px;
    font-size: 13px;
}

@media (max-width: 700px) {
    .cards {
        grid-template-columns: 1fr;
    }
}