body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f6f8;
    color: #222;
}

header {
    background: #111827;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

header h1 {
    margin: 10px 0 5px;
    font-size: 2rem;
}

header p {
    margin: 0;
    font-size: 1.1rem;
    color: #d1d5db;
}

main {
    max-width: 900px;
    margin: 30px auto;
    padding: 0 20px;
}

.card {
    display: block;
    background: white;
    padding: 18px;
    margin-bottom: 14px;
    border-radius: 10px;
    text-decoration: none;
    color: #111827;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.card:hover {
    transform: translateY(-2px);
}

.back-link {
    display: inline-block;
    margin-top: 20px;
}

.logo {
    max-width: 220px;
    height: auto;
    margin-bottom: 10px;
    background: white;
    padding: 10px;
    border-radius: 8px;
}

nav {
    background: #0b1220;
    padding: 14px 20px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 14px;
    font-weight: bold;
}

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