* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    display: flex;
    background-color: #121212;
    color: white;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: #000;
    border-right: 3px solid #c8e6a0;
    padding-top: 20px;
}

.logo {
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #c8e6a0;
    padding: 20px;
    border-bottom: 1px solid #333;
}

.nav-item {
    padding: 15px 20px;
    cursor: pointer;
    transition: 0.3s;
    user-select: none;
}

.nav-item:hover {
    background-color: #1f1f1f;
    color: #c8e6a0;
}

.dropdown-content {
    display: none;
    background-color: #151515;
}

.dropdown-content div {
    padding: 12px 40px;
    cursor: pointer;
    transition: 0.3s;
}

.dropdown-content div:hover {
    background-color: #222;
}

/* Main Content */
.content {
    flex: 1;
    padding: 40px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

h1 {
    color: #c8e6a0;
    margin-bottom: 20px;
}

h2 {
    margin-bottom: 15px;
}

.formula-five {
    color: #ff3b3b;
}

.construction {
    font-size: 1.2rem;
    margin-top: 15px;
}

.news-card {
    background-color: #1c1c1c;
    border-left: 4px solid #c8e6a0;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 6px;
}

.placeholder {
    color: #999;
    font-style: italic;
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 3px solid #c8e6a0;
    }
}