body {
  background-color: #fafafa;
  color: #222222;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  font-size: 13px;
  line-height: 1.5;
}

.navbar {
  background-color: #f0f0f0;
  border-bottom: 1px solid #dddddd;
  padding: 0 20px;
  font-size: 12px;
}

.navbar-container {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
}

.navbar-brand {
  font-weight: bold;
  color: #000000;
  text-decoration: none;
  padding: 12px 15px 12px 0;
  margin-right: 15px;
  border-right: 1px solid #dddddd;
}

.navbar-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-item a {
  display: inline-block;
  color: #555555;
  text-decoration: none;
  padding: 12px 12px;
}

.navbar-item a:hover {
  color: #000000;
  background-color: #e5e5e5;
}

.navbar-item.active a {
  color: #000000;
  font-weight: bold;
  background-color: #ffffff;
  border-left: 1px solid #dddddd;
  border-right: 1px solid #dddddd;
}

/* Main Flat Container */
.container {
  width: 100%;
  max-width: 600px;
  margin: 40px auto;
  background-color: #ffffff;
  border: 1px solid #dddddd;
  padding: 25px;
  box-sizing: border-box;
}

h1 {
  margin: 0 0 10px 0;
  font-size: 18px;
  font-weight: bold;
  color: #000000;
  letter-spacing: -0.5px;
}

p {
  margin: 0 0 20px 0;
  color: #666666;
  font-size: 12px;
}

/* Flat Form Elements */
.form-group {
  margin-bottom: 15px;
}

.form-group:last-child { margin-bottom: 0; }

label {
  display: block;
  font-size: 12px;
  font-weight: bold;
  margin-bottom: 4px;
  color: #333333;
}

/* Clean, flat inputs with subtle borders */
textarea {
  width: 100%;
  height: 160px;
  padding: 8px;
  box-sizing: border-box;
  border: 1px solid #cccccc;
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: #111111;
  background-color: #ffffff;
}

textarea:focus {
  border-color: #999999;
  outline: none;
}

/* Read-only output styled flatly */
textarea[readonly] {
  background-color: #f5f5f5;
  border-color: #dddddd;
  color: #555555;
}