/* General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #ffffff;
    color: #333;
    text-align: center;
}

/* Header */
header {
    background-color: #f6f8fa;
    color: #24292e;
    padding: 20px 0;
    border-bottom: 1px solid #e1e4e8;
}

header h1 {
    font-size: 24px;
}

/* Container */
.container {
    max-width: 800px;
    margin: 20px auto;
}

/* Cards */
.card {
    background: #ffffff;
    padding: 20px;
    margin: 10px 0;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    text-align: left;
    border: 1px solid #e1e4e8;
}

.card h2 {
    color: #0366d6;
}

/* Buttons */
.button {
    display: inline-block;
    padding: 10px 15px;
    margin-top: 10px;
    color: white;
    background-color: #2ea44f;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    transition: background 0.2s;
}

.button:hover {
    background-color: #22863a;
}

/* Footer */
footer {
    margin-top: 20px;
    padding: 10px;
    background-color: #f6f8fa;
    color: #24292e;
    font-size: 12px;
    border-top: 1px solid #e1e4e8;
}