/* Basic Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f4f6f9;
    color: #333;
    padding: 20px;
}

header {
    background-color: #1e3a8a;
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

header a {
    color: #f3f4f6;
    text-decoration: none;
    font-weight: bold;
}

header a:hover {
    color: #60a5fa;
}

.welcome-box {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Banner sizing rules */
.banner-container {
    display: flex;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.banner-img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    border: 2px solid #ddd;
}