body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #0f0f0f;
    color: #fff;
}

.layout {
    display: flex;
}

.sidebar {
    width: 240px;
    height: 100vh;
    background: #111;
    padding: 20px;
    box-shadow: 2px 0 20px rgba(0,170,255,0.2);
}

.sidebar h2 {
    color: #00aaff;
    margin-bottom: 30px;
}

.sidebar a {
    display: block;
    color: #ccc;
    padding: 10px 0;
    text-decoration: none;
    transition: 0.3s;
}

.sidebar a:hover {
    color: #00aaff;
    padding-left: 10px;
}

.content {
    flex: 1;
    padding: 30px;
}

.card {
    background: #1a1a1a;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 0 20px rgba(0,170,255,0.1);
}