body {
    background-color: #EBE8E2;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: black;
    margin: 0;
    padding-bottom: 3rem;
}

header {
    position: sticky;
    top: 0;
    background-color: #EBE8E2;
    z-index: 100;
    border-radius: 0 0 12px 12px;
    box-shadow: none;
    transition: box-shadow 0.3s ease;
}
header.scrolled {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

/* Navigation */
.nav__list {
    display: flex;
    font-family: Helvetica, sans-serif;
    justify-content: flex-start;
    align-items:center;
    padding: 2rem;
    gap: 6rem;
    list-style: none;
}

.nav__link {
    text-decoration: none;
    color: #333;
    position: relative;
    padding-bottom: 4px;
    transition: color 0.3s ease;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #4a7c59;
    transition: width 0.3s ease;
}

.nav__link:hover {
    color: #4a7c59;
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link.active {
    color: #4a7c59;
    font-weight: 600;
}

.nav__link.active::after {
    width: 100%;
}

main {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

footer {
    padding-top: 2rem;
    text-align: center;
}

/* mobile responsiveness */
@media (max-width: 600px) {
    .nav__list {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        align-items: center;
    }
}