body {
  font-family: Arial, sans-serif;
  margin: 0;
}

header {
  display: flex;
  justify-content: space-between; /* logo+judul kiri, switch bahasa kanan */
  align-items: center;
  background: #003366; /* biru tua */
  color: white;
  padding: 10px 20px;
}

#header-left {
  display: flex;
  align-items: center; /* logo dan teks sejajar vertikal */
}

#logo {
  width: 150px;       /* ukuran logo */
  height: 40px;
  margin-right: 10px; /* jarak antara logo dan teks */
}

header h1 {
  margin: 0;
  font-size: 24px;
}

#lang-switch a {
  color: white;
  text-decoration: none;
  margin-left: 10px;
  font-weight: bold;
}

#lang-switch a:hover {
  text-decoration: underline;
}


#lang-switch a:hover { text-decoration: underline; }

#container { display: flex; height: calc(100vh - 60px); }

#sidebar {
  width: 200px;
  background: #f4f4f4;
  padding: 20px;
  box-shadow: 2px 0 5px rgba(0,0,0,0.1);
  overflow: hidden;
}

#sidebar button {
  display: block;
  width: 100%;
  margin-bottom: 10px;
  padding: 10px;
  cursor: pointer;
  text-align: left;
  background: none;
  border: none;
  font-size: 16px;
  transition: background 0.2s;
}

#sidebar button.active {
  background: #ddd;
  font-weight: bold;
}

#sidebar button:hover { background: #eee; }

#content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  scroll-behavior: smooth;
}