body {
    background-color: #1e1e1e;
    color: #e0e0e0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
    padding: 15px;
}

h1,
h2,
h3 {
    color: #00ff88;
    margin-top: 0;
    margin-bottom: 10px;
    border-bottom: 1px solid #444;
    padding-bottom: 5px;
}

a {
    color: #00ff88;
    text-decoration: none;
    transition: 0.2s;
}

a:hover {
    color: #88ffcc;
    text-decoration: underline;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 5px;
}

pre {
    background: #111;
    padding: 10px;
    border-radius: 4px;
    overflow-x: auto;
    border: 1px solid #333;
    font-family: 'Consolas', 'Monaco', monospace;
    color: #a9ffc1;
    margin: 10px 0;
}

code {
    background: #333;
    padding: 2px 4px;
    border-radius: 3px;
    color: #ffab40;
    font-family: 'Consolas', monospace;
    font-size: 0.9em;
}

.card {
    background: #2a2a2a;
    border-left: 3px solid #00ff88;
    padding: 10px 15px;
    margin-bottom: 15px;
    border-radius: 0 4px 4px 0;
}

.card h3 {
    border: none;
    margin-bottom: 5px;
    font-size: 1.1em;
    color: #fff;
}

.back-link {
    display: block;
    margin-bottom: 15px;
    color: #888;
    font-size: 0.9em;
}

.back-link:hover {
    color: #fff;
}

.nav-menu {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.nav-item {
    display: block;
    background: #2a2a2a;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid #333;
    text-align: center;
    font-weight: bold;
}

.nav-item:hover {
    background: #333;
    border-color: #00ff88;
}

.param {
    color: #88ccff;
}

.return {
    color: #ff88cc;
}