body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #f9f9fb;
    margin: 0;
    color: #222;
}
header {
    background: #3c24c7;
    color: #fff;
    display: flex;
    align-items: center;
    padding: 16px 24px;
}
header .logo {
    font-size: 2.2rem;
    margin-right: 16px;
}
header h1 {
    font-size: 1.8rem;
    margin: 0;
    letter-spacing: 1px;
}
nav {
    background: #edeef7;
    padding: 8px 24px;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}
nav a {
    color: #3c24c7;
    font-weight: 500;
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 5px;
    transition: background 0.2s;
}
nav a:hover, nav a:focus {
    background: #dbd3ff;
}
main {
    max-width: 730px;
    margin: 32px auto;
    padding: 0 24px;
}
h2 {
    color: #3c24c7;
    margin-top: 2rem;
    margin-bottom: 1rem;
}
ol, ul {
    margin-left: 1.2rem;
}
.example {
    background: #f4f1ff;
    border-left: 4px solid #a490fb;
    margin: 1.3em 0;
    padding: 1em 1.5em;
    border-radius: 6px;
}
code {
    background: #eceaff;
    padding: 2px 7px;
    border-radius: 4px;
    font-family: "Fira Mono", "Courier New", monospace;
    font-size: 1em;
    display: inline-block;
    margin-bottom: .3em;
}
footer {
    background: #edeef7;
    color: #555;
    text-align: center;
    padding: 22px 10px 16px;
    margin-top: 42px;
    font-size: .98em;
}
footer a {
    color: #3c24c7;
    text-decoration: underline;
}
@media (max-width: 700px) {
    main {
        padding: 0 6vw;
    }
    header {
        flex-direction: column;
        align-items: flex-start;
    }
}
@media (max-width: 500px) {
    nav ul {
        flex-wrap: wrap;
        gap: 10px;
    }
    main {
        padding: 0 2vw;
    }
}

.bold-learn {
    background: #fff6ec;
    border-left: 6px solid #fbbe63;
    margin: 2em 0 2.2em 0;
    padding: 1.1em 1.2em 1em 1.4em;
    border-radius: 7px;
    color: #473200;
    font-size: 1.08em;
}

.bold-learn strong {
    font-size: 1.08em;
    color: #d38a16;
    letter-spacing: 0.2px;
}

.bold-learn ul {
    margin-top: 0.8em;
    margin-bottom: 0.7em;
}