/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Base */
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.7;
    color: #222;
    background-color: #ffffff;
}

/* Header */
.header {
    background: #f4f6f9;
    padding: 25px 15px;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

.header h1 {
    font-size: 2rem;
    color: #2c3e50;
}

/* Main container */
.container {
    max-width: 1100px;      /* Big screen margin */
    margin: 0 auto;         /* Center content */
    padding: 20px;
}

/* Sections */
section {
    margin-bottom: 30px;
}

section h2 {
    font-size: 1.4rem;
    color: #1f3a5f;
    margin-bottom: 10px;
}

section p {
    margin-bottom: 10px;
}

/* Lists */
ul, ol {
    margin-left: 22px;
    margin-bottom: 10px;
}

li {
    margin-bottom: 6px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 15px;
    background: #f4f6f9;
    border-top: 1px solid #ddd;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.6rem;
    }

    section h2 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 15px;
    }
}
.table-wrapper {
    overflow-x: auto; /* Mobile scroll */
    margin-top: 15px;
}

.difference-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.difference-table th,
.difference-table td {
    border: 1px solid #999;
    padding: 10px;
    text-align: left;
    vertical-align: top;
}

.difference-table th {
    background-color: #eef2f7;
    font-weight: bold;
}

.difference-table tr:nth-child(even) {
    background-color: #fafafa;
}