/* RESET */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: url("windows_xp_original-wallpaper-3840x2160.jpg") no-repeat center center fixed;
    background-size: cover;
}

/* CONTAINER */
.container {
    width: 1000px;
    margin: auto;
    background: transparent;
}

/* HEADER */
.header {
    text-align: center;
    margin: 10px 0;
}

.header img {
    width: 100%;
    border: 4px solid #8ecae6;
}

/* LAYOUT */
.layout {
    display: flex;
    gap: 10px;
}

/* SIDEBAR ESQUERDA */
.sidebar {
    width: 200px;
    background: #d6f0ff;
    border: 3px solid #8ecae6;
    padding: 10px;
}

.sidebar h2 {
    text-align: center;
    background: #8ecae6;
    padding: 5px;
    font-size: 14px;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar li {
    margin: 5px 0;
}

.sidebar a {
    display: block;
    background: white;
    padding: 5px;
    text-decoration: none;
    border: 2px solid #8ecae6;
    color: black;
}

.sidebar a:hover {
    background: #caf0f8;
}

/* CONTEÚDO */
.content {
    flex: 1;
    background: #eaf8ff;
    border: 3px solid #8ecae6;
    padding: 10px;
    text-align: center;
}

.content h1 {
    font-size: 20px;
}

.image-box img {
    width: 80%;
    border: 3px solid #8ecae6;
}

/* LADO DIREITO */
.rightbar {
    width: 200px;
}

.box {
    background: #d6f0ff;
    border: 3px solid #8ecae6;
    padding: 10px;
    margin-bottom: 10px;
}

.box h3 {
    text-align: center;
    background: #8ecae6;
    padding: 5px;
    font-size: 14px;
}