main {
    max-width: 960px;
    margin: 0 auto;
}
nav {
    margin-top: 32px;
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.cta {
    display: block;
    padding: 24px;
    background: #fff;
    border-radius: 18px;
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(30, 64, 175, 0.08);
    box-shadow: 0 20px 35px rgba(30, 64, 175, 0.12);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 24px 45px rgba(30, 64, 175, 0.18);
}
.cta h2 {
    margin: 0;
    font-size: 20px;
}
.cta p {
    margin: 10px 0 0;
    color: rgba(15, 23, 42, 0.7);
    font-size: 15px;
}
.hint {
    margin-top: 28px;
    text-align: center;
    border-radius: 14px;
    background: rgba(148, 163, 184, 0.15);
    color: antiquewhite;
    font-size: 20px;
}
.hint strong {
    color: yellow;
}