* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: #263445;
    background: #f4f7fb;
    line-height: 1.6;
}

header {
    background: #14253d;
    color: white;
    padding: 24px 30px;
}

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

header p {
    margin: 4px 0 0;
    color: #d5e4f5;
}

.layout {
    display: flex;
    min-height: 65vh;
}

nav {
    width: 220px;
    flex-shrink: 0;
    background: #e5edf6;
    padding: 25px 15px;
}

nav a {
    display: block;
    padding: 12px;
    margin-bottom: 8px;
    color: #14253d;
    text-decoration: none;
    border-radius: 6px;
}

nav a:hover,
nav a.active {
    background: #14253d;
    color: white;
}

main {
    flex: 1;
    padding: 30px;
    min-width: 0;
}

.hero-image {
    display: block;
    width: 100%;
    max-width: 850px;
    max-height: 380px;
    object-fit: cover;
    border-radius: 10px;
    margin: 20px 0;
}

.service {
    background: white;
    padding: 18px;
    margin: 15px 0;
    border-left: 4px solid #2878c8;
    border-radius: 6px;
}

footer {
    background: #14253d;
    color: white;
    text-align: center;
    padding: 20px;
}

footer p {
    margin: 5px;
}

footer a {
    color: #d5e4f5;
}

@media (max-width: 600px) {
    .layout {
        flex-direction: column;
    }

    nav {
        width: 100%;
    }

    nav a {
        display: inline-block;
        margin: 3px;
    }

    main {
        padding: 20px;
    }
}