body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #333;
}

header {
  background: white;
  text-align: center;
  padding-top: 20px;
}

.banner {
  width: 100%;
  max-height: 180px;
  height: auto;
  display: block;
  margin: 0 auto;
  object-fit: contain;
}

nav {
  background: #2c3e50;
  text-align: center;
  padding: 12px;
}

nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

.container {
  max-width: 900px;
  margin: auto;
  background: white;
  padding: 35px;
}

.lang {
  display: none;
}
#lang-switcher button {
  margin: 0 5px;
  padding: 5px 10px;
  cursor: pointer;
}

footer {
  margin-top: 40px;
  padding: 20px;
  text-align: center;
  font-size: 14px;
  color: #777;
}

.site-version {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #2c3e50;
}