*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background: #1b264f;
    color: #fff;
    padding: 1rem 2rem;
}

nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

nav > a {
    color: #fff;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

nav ul a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

nav ul a:hover, nav ul a.active {
    color: #fff;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: #666;
}

.content {
    padding: 2rem 0;
}

footer {
    background: #f5f5f5;
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
    color: #666;
}