html {
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #2d3436;
    background-color: slategray;
}

#bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

header {
    background-color: green;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

header img {
    max-height: 70px;
    margin-bottom: 15px;
}

nav {
    display: flex;
    gap: 10px;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 21px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 10px 20px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

nav a:hover {
    background-color: #2d6a4f;
    color: #d8f3dc;
}

section {
    max-width: 900px;
    margin: 40px auto;
    padding: 40px;
    background: rgba(255, 255, 255, 0.85);
    scroll-margin-top: 200px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    min-height: 400px;
}

h1 {
    color: #1b4332;
    font-size: 2.5rem;
    margin-bottom: 20px;
    border-bottom: 3px solid #74c69d;
    display: inline-block;
    padding-bottom: 5px;
}

h2 {
    color: #2d6a4f;
    margin-top: 30px;
    font-weight: 600;
}

p {
    font-size: 1.1rem;
    color: #444;
    margin-bottom: 1.2rem;
}

@media (max-width: 768px) {
    section {
        margin: 20px;
        padding: 25px;
    }

    nav {
        flex-direction: column;
        width: 100%;
        align-items: center;
    }
}