html {
    height: 100%;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f7f9fb;
    color: #222;
    line-height: 1.6;
    min-height: 100%;
    height: 100%;
}

#wrapper {
    min-height: 100%;
    height: 100%;
    width: 100%;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

header {
    background-color: #002d72;
    color: white;
    text-align: center;
    padding: 40px 20px;
}

header h1 {
    margin: 0;
    font-size: 2.4em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    max-height: 500px;
    transform: scaleX(-1)
}

main {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #002d72;
    border-bottom: 2px solid #002d72;
    padding-bottom: 5px;
}

ul {
    margin-left: 20px;
}

.join-btn {
    display: inline-block;
    background-color: #002d72;
    color: white;
    text-decoration: none;
    padding: 14px 28px;
    font-size: 1.1em;
    border-radius: 6px;
    margin-top: 30px;
    transition: background 0.3s ease;
}

.join-btn:hover {
    background-color: #0040a0;
}

footer {
    background-color: #002d72;
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
}