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

:root {
    --first-color: #2C3E50;
    --second-color: #AF986E;
    --third-color: #FFFFFF;
    --site-color: #E0E0E0;
    --text-color: #111827;    
}

body {
    margin: 0;
    padding-top: 72px;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--text-color);
    background: var(--site-color);
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    padding: 0 32px;
    background: var(--third-color);
    border-bottom: 1px solid var(--second-color);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    display: block;
    height: 45px;
    width: auto;
}

.navbar nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 8px;
}

.navbar nav a:hover,
.navbar nav a.active {
    color: var(--first-color);
    background: var(--second-color);
}

main {
    max-width: 880px;
    margin: 0 auto;
    padding: 48px 24px;
}

@media (max-width: 640px) {
    .navbar {
        padding: 0 16px;
    }

    .logo img {
        height: 30px;
    }

    .navbar a {
        padding: 8px 10px;
        font-size: 14px;
    }
}