body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: black;
    color: #f5f5f5;
}

/* NAVBAR */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #111;
    padding: 15px;
    border-bottom: 2px solid #444;
}

.navbar h1 {
    color: #00ffcc;
    margin: 0;
}

.navbar nav a {
    margin: 0 10px;
    color: #fff;
    text-decoration: none;
}

.navbar nav a:hover {
    color: #00ffcc;
}

/* LAYOUT */
.container {
    max-width: 1000px;
    margin: auto;
    padding: 20px;
}

/* CARD SYSTEM */
.card {
    background: #1a1a1a;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 10px;
    border: 1px solid #333;
}

/* MEDIA */
.responsive-img {
    width: 100%;
    border-radius: 8px;
}

iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* MOBILE */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
    }
}