:root {
    color-scheme: dark;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont,
                 "Segoe UI", sans-serif;
    background: #0b1220;
    color: #e8edf7;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 20% 0%, #1e3a5f 0, transparent 35%),
        linear-gradient(160deg, #0b1220, #101a2e);
}

.header,
footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1120px;
    margin: auto;
    padding: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
}

.logo {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: #4f8cff;
    color: white;
}

nav {
    display: flex;
    gap: 22px;
}

a {
    color: #cbd8ee;
    text-decoration: none;
}

main {
    max-width: 1120px;
    margin: auto;
    padding: 70px 24px 90px;
}

.hero {
    max-width: 760px;
}

.eyebrow {
    color: #78a8ff;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}

h1 {
    margin: 10px 0 20px;
    font-size: clamp(40px, 7vw, 72px);
    line-height: 1.04;
}

.lead {
    max-width: 680px;
    color: #afbdd4;
    font-size: 20px;
    line-height: 1.6;
}

.upload-box {
    display: grid;
    gap: 13px;
    margin-top: 42px;
    padding: 34px;
    border: 1px dashed #5277ad;
    border-radius: 22px;
    background: rgba(19, 33, 56, .76);
}

.upload-icon {
    font-size: 34px;
}

.upload-box span {
    color: #9eacc3;
}

button {
    width: max-content;
    margin-top: 6px;
    padding: 12px 18px;
    border: 0;
    border-radius: 10px;
    background: #334661;
    color: #aab8cd;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.features article {
    padding: 24px;
    border: 1px solid #263653;
    border-radius: 18px;
    background: rgba(14, 25, 43, .72);
}

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

.features p,
footer {
    color: #93a1b8;
    line-height: 1.5;
}

.page {
    max-width: 850px;
}

footer {
    border-top: 1px solid #20304b;
}

@media (max-width: 760px) {
    nav {
        display: none;
    }

    .features {
        grid-template-columns: 1fr;
    }
}