:root {
    --primary-blue: #003366;
    --light-gray: #f4f4f4;
    --white: #ffffff;
    --text-dark: #333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0; padding: 0;
    background-color: var(--light-gray);
    color: var(--text-dark);
}

header {
    background: var(--primary-blue);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 2rem auto;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.form-group { margin-bottom: 1.5rem; }
label { display: block; margin-bottom: 0.5rem; font-weight: bold; }
input, textarea, select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    background: var(--primary-blue);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
}

button:hover { opacity: 0.9; }

@media (max-width: 768px) {
    header { flex-direction: column; }
    nav { margin-top: 1rem; }
    nav a { display: block; margin: 10px 0; }
}