body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* --- Tab Styles --- */
.tabs {
    display: flex;
    justify-content: flex-start;
    border-bottom: 2px solid #ddd;
    margin-bottom: 20px;
}

.tab-button {
    background-color: transparent;
    border: none;
    padding: 10px 15px;
    cursor: pointer;
    font-size: 1.1em;
    color: #666;
    outline: none;
    transition: color 0.3s, border-bottom 0.3s;
    margin-right: 5px;
}

.tab-button:hover:not(.active) {
    color: #000;
}

.tab-button.active {
    color: #007bff;
    border-bottom: 3px solid #007bff;
    font-weight: bold;
}

/* Hide/Show Content */
.content-panel {
    display: none;
    padding-top: 10px;
}

.content-panel.active {
    display: block;
}
/* --- End Tab Styles --- */

/* Existing styles (main content) */
header {
    text-align: center;
    padding-bottom: 20px;
}

header h1 {
    color: #0056b3;
}

section {
    margin-bottom: 30px;
}

h2 {
    color: #007bff;
    border-bottom: 1px solid #eee;
    padding-bottom: 5px;
}

ul {
    list-style-type: disc;
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Footer position is now outside the content-panels */
footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid #ddd;
    font-size: 0.9em;
    color: #666;
}