body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f9f9f9;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 0;
}

.container {
    width: 80%;
    max-width: 1100px;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #0056b3;
    text-decoration: none;
}

nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #555;
    font-weight: 500;
}

nav ul li a:hover, nav ul li a.active {
    color: #0056b3;
}

.hero {
    background-color: #0056b3;
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section {
    padding: 3rem 0;
    background-color: #fff;
    margin: 20px 0;
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.section h2 {
    color: #0056b3;
    margin-bottom: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: #f4f4f4;
    padding: 20px;
    border-radius: 5px;
    border-left: 4px solid #0056b3;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
}

form input, form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
}