body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f4f4;
}

header {
    background: #003366;
    color: white;
    padding: 15px;
}

nav a {
    color: white;
    margin-right: 15px;
    text-decoration: none;
}

.hero {
    text-align: center;
    padding: 60px;
    background: #0066cc;
    color: white;
}

.features {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 40px;
}

.card {
    background: white;
    padding: 20px;
    width: 250px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

form {
    background: white;
    width: 400px;
    margin: 40px auto;
    padding: 20px;
    border-radius: 10px;
}

input, select , text {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    box-sizing: border-box;
}

button {
    background: #003366;
    color: white;
    border: none;
    padding: 10px;
    margin-bottom: 10px;
    cursor: pointer;
}

.message {
    width: 400px;
    margin: 20px auto;
    padding: 15px;
    background: #e6f2ff;
    border: 1px solid #3399ff;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
}

.filter-form {
    width: 500px;
    margin: 20px auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
}

th {
    background: #003366;
    color: white;
}