:root {
    --primary-bg: #1e1e1e;
    --secondary-bg: #2a2a2a;
    --header-bg: #181818;
    --text-color: #e0e0e0;
    --text-muted: #aaa;
    --font-family: 'Arial', sans-serif;
    --border-radius: 12px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--primary-bg);
    color: var(--text-color);
    overflow-x: hidden;
}

.navbar {
    background-color: var(--header-bg);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1500px;
    margin: 0 auto;
}

.navbar .logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

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

.navbar ul a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.navbar ul a:hover, .navbar ul a:focus {
    color: white;
}

footer {
    text-align: center;
    background-color: var(--header-bg);
    color: var(--text-muted);
    padding: 1.5rem 0;
    margin-top: 2rem;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
}