/* styles.css */
body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #FAFBFD;
    color: #222;
    margin: 0;
}

header {
    background-color: #1652f0;
    color: #fff;
    padding: 2rem 1rem 1rem 1rem;
    text-align: center;
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 1px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s;
}

nav a:hover {
    color: #ff9900;
}

.subtitle {
    font-size: 1.3rem;
    margin-top: 0.5rem;
}

main {
    max-width: 750px;
    margin: 2rem auto;
    padding: 1rem;
    background: #fff;
    box-shadow: 0 4px 18px rgba(22,82,240,0.05);
    border-radius: 8px;
}

h1, h2, h3 {
    color: #1652f0;
}

.note {
    background: #e3f0fe;
    border-left: 6px solid #1652f0;
    padding: 0.8rem 1rem;
    margin-top: 0.6rem;
    font-size: 1rem;
}

footer {
    background: #1652f0;
    color: #fff;
    text-align: center;
    padding: 1rem;
    border-top: 2px solid #ccc;
    margin-top: 2rem;
}

.footer-content {
    font-size: 1rem;
}

@media (max-width: 600px) {
    nav ul {
        flex-direction: column;
        gap: 0.7rem;
        text-align: left;
    }
    main {
        margin: 0.5rem;
        padding: 0.5rem;
    }
}