:root {
    --primary-color: #FF6600;
    --secondary-color: #FF9933;
    --text-color: #333333;
    --background-color: #FFFFFF;
    --nav-background: #1A1A1A;
    --nav-text: #FFFFFF;
    --header-background: #000000;
    --header-text: #FFFFFF;
    --footer-background: #000000;
    --footer-text: #FFFFFF;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--background-color);
}

header {
    background-color: var(--header-background);
    color: var(--header-text);
    text-align: center;
    padding: 1rem;
    border-radius: 5px 5px 0 0;
}

nav {
    background-color: var(--nav-background);
    padding: 10px;
    border-radius: 0 0 5px 5px;
}

nav ul {
    list-style-type: none;
    padding: 0;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

nav ul li {
    margin: 5px;
}

nav ul li a {
    color: var(--nav-text);
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 3px;
    transition: background-color 0.3s;
}

nav ul li a:hover {
    background-color: var(--primary-color);
}

main {
    background-color: var(--background-color);
    padding: 20px;
    margin-top: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1, h2, h3 {
    color: var(--primary-color);
}

h2 {
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
}

ul, ol {
    padding-left: 20px;
}

section {
    margin-bottom: 30px;
}

footer {
    text-align: center;
    margin-top: 20px;
    padding: 10px;
    background-color: var(--footer-background);
    color: var(--footer-text);
    border-radius: 5px;
}

.section-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
    }
    
    nav ul li {
        margin: 5px 0;
    }

    .section-image {
        max-width: 100%;
    }
}

.section-content {
    background-color: #f9f9f9;
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    margin-bottom: 20px;
}

.important-note {
    background-color: #ffe6e6;
    border-left: 4px solid #ff4d4d;
    padding: 10px;
    margin: 10px 0;
}

.tip {
    background-color: #e6f7ff;
    border-left: 4px solid var(--secondary-color);
    padding: 10px;
    margin: 10px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

th {
    background-color: var(--secondary-color);
    color: var(--nav-text);
    font-weight: bold;
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}

tr:hover {
    background-color: #f5f5f5;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button {
    background-color: var(--primary-color);
    color: var(--nav-text);
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: var(--secondary-color);
}

input[type="text"], input[type="password"], input[type="email"], input[type="number"], select {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--secondary-color);
    border-radius: 4px;
    background-color: white;
}

/* Accessibility improvements */
a:focus, button:focus, input:focus, select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Print styles */
@media print {
    body {
        font-size: 12pt;
    }

    header, nav, footer {
        display: none;
    }

    .section-image {
        max-width: 50%;
        margin: 10px auto;
    }

    a[href]:after {
        content: " (" attr(href) ")";
    }
}