/* === Global Reset === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* === Body and Fonts === */
body {
  font-family: 'Segoe UI', 'Open Sans', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #333;
  background-color: #f9f9f9;
  padding: 20px;
}

/* === Header / Banner === */
.page_header, .header_image {
  width: 100%;
  max-height: 250px;
  overflow: hidden;
}
.header_image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* === Main Container Layout === */
.container, .pkp_structure_main, .pkp_page_index {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
}

/* === Main Content === */
.main_content {
  flex: 1;
  min-width: 0;
  padding-right: 20px;
}

/* === Sidebar === */
.sidebar {
  width: 300px;
  padding: 20px;
  background-color: #ffffff;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
}
.sidebar .block {
  margin-bottom: 25px;
}
.sidebar h2, .block_title {
  font-size: 18px;
  margin-bottom: 10px;
  border-bottom: 2px solid #00aaff;
  padding-bottom: 5px;
}

/* === Typography === */
h1, h2, h3, h4 {
  color: #004466;
}
a {
  color: #006699;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* === Table & Text Blocks === */
table {
  width: 100%;
  border-collapse: collapse;
}
table td, table th {
  padding: 10px;
  border: 1px solid #ddd;
}

/* === Footer === */
.footer {
  margin-top: 40px;
  padding: 20px;
  background-color: #ececec;
  text-align: center;
  font-size: 14px;
}

/* === Images === */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* === Responsive Design === */
@media screen and (max-width: 768px) {
  .container {
    flex-direction: column;
    padding: 10px;
  }

  .main_content, .sidebar {
    width: 100%;
    padding: 10px 0;
  }

  .sidebar {
    order: -1; /* Move sidebar to top */
  }
}

/* === Pengindeks Logo & Publisher === */
.sidebar .block img {
  display: block;
  margin: 0 auto;
  max-width: 150px;
}