body {
    font-family: Calibri, 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.35;
    color: #333;
    margin: 1rem auto 25px auto;
    padding: 0 1rem;
    max-width: 900px;
    background: #f9f9f9;
    font-size: 1em;
}

section {
    padding: 10px 10px 40px 10px;
    margin: 10px 0;
}

h1,
h2,
h3 {
    color: #0071a1;
    font-weight: 600;
}

h1 {
    border-bottom: 3px solid #0071a1;
    padding-bottom: 0.3em;
    margin-bottom: 1rem;
    font-size: 2.6rem;
}

h2 {
    border-bottom: 2px solid #a3c3db;
    margin-top: 2rem;
    padding-bottom: 0.25em;
    font-size: 1.8rem;
    text-decoration: underline;
}

h3 {
    margin-top: 1.7rem;
    font-size: 1.3rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0 1.5rem 0;
    font-size: 0.95rem;
    background: #fff;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.05);
    border-radius: 6px;
    overflow: hidden;
}

th,
td {
    border: 1px solid #ccc;
    padding: 0.5em 0.85em;
    text-align: left;
}

th {
    background-color: #dce9f8;
    font-weight: 600;
}

pre {
    background: #f0f0f0;
    color: #222;
    padding: 1rem 1.1rem;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.95rem;
    margin: 0.8rem 0 1.2rem 0;
    font-family: 'Consolas', 'Courier New', monospace;
    border: 1px solid #ddd;
    font-weight: 600;
}

code {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    background-color: #b4ababb6;
    border: 1px solid #ccc;
    font-weight: 600;
    font-family: 'Consolas', 'Courier New', monospace;
    color: #333;
    vertical-align: middle;
}

.note {
    background: #e7f3fe;
    border-left: 6px solid #2196F3;
    padding: 0.55em 1.25em;
    margin: 1rem 0;
    font-size: 1rem;
    color: #333;
    border-radius: 4px;
    box-shadow: 0 0 5px #d0e3fc;
}

a {
    color: #0071a1;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

a:hover,
a:focus {
    color: orange;
    text-decoration: underline;
    outline: none;
}

nav {
    background: #f0f7ff;
    border: 1px solid #a3c3db;
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    color: #005a87;
}

nav h2 {
    margin-top: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: #004a6b;
}

nav ul {
    list-style: none;
    padding-left: 0;
    margin: 0.5rem 0 0 0;
    columns: 2;
    column-gap: 2rem;
}

nav ul li {
    margin-bottom: 0.6rem;
}

nav ul li a {
    color: #005a87;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.3s ease;
}

nav ul li a:hover,
nav ul li a:focus {
    color: orange;
    text-decoration: underline;
    outline: none;
}

@media (max-width: 600px) {
    body {
        margin: 0.5rem 0.8rem 25px 0.8rem;
        font-size: 0.95em;
    }

    nav ul {
        columns: 1;
        margin-top: 0.5rem;
    }

    nav ul li a {
        text-transform: none;
        padding: 8px 12px;
    }
}