/* Global */
body {
    margin: 0;
    background: #000000;
    color: #fff;
    font-family: Arial, sans-serif;
}

/* Top navigation bar */
.top-nav {
    background: #111;
    padding: 15px 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
    border-bottom: 1px solid #333;
    position: sticky;
    top: 0;
}

.top-nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: 0.2s;
}

.top-nav a:hover {
    color: #4CF278;
}

/* Centered content container */
.content {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
    text-align: left;
}

.cat-grid {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.cat-grid img {
    height: 500px;
    width: auto;
    border-radius: 8px;
}

/* Link list styling */
.link-item {
    margin: 10px 0;
}

.link-item a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 4px;
    font-weight: bold;
    margin-right: 10px;
    transition: color 0.2s;
}

.link-item a:hover {
    color: #4CF278;
}

.link-item span {
    color: #aaa;
    font-size: 14px;
}

/* Dropdown */
.dropdown {
    margin-top: 40px; /* moved lower */
}

.dropdown-btn {
    background: none;
    border: 1px solid #4CF278;
    color: #4CF278;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 16px;
    border-radius: 6px;
    transition: 0.2s;
}

.dropdown-btn:hover {
    background: #4CF278;
    color: #000;
}

/* Fade-in/out dropdown animation */
.dropdown-content {
    margin-top: 15px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.4s ease;
}

.dropdown-content.open {
    max-height: 500px;
    opacity: 1;
}

h2 span {
    font-size: 14px;
    color: #888;
}