/* ---------------- GENERAL ---------------- */
body {
  font-family: Arial, sans-serif;
  background: #f2f2f2;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 600px;
  background: white;
  padding: 30px;
  margin: 40px auto;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  text-align: center;
}

/* ---------------- BUTTONS ---------------- */

.btn {
  display: inline-block;
  padding: 12px 20px;
  background: #1d4ed8;
  color: white;
  text-decoration: none;
  border-radius: 10px;
  margin-top: 20px;
}

button {
  padding: 12px 18px;
  border: none;
  background: #1d4ed8;
  color: white;
  border-radius: 8px;
  margin-top: 10px;
}

.btn-lang {
  display: block;
  width: 100%;
  margin: 8px 0;
  padding: 12px;
  background: #e5e7eb;
  border-radius: 8px;
  border: none;
  font-size: 1rem;
  cursor: pointer;
}

.btn-lang:hover {
  background: #d1d5db;
}

.hidden {
  display: none;
}

.error {
  color: red;
  font-weight: bold;
}

/* ---------------- HEADER / NAV ---------------- */
header {
  background: #1d4ed8;
  color: white;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header img.logo {
  height: 40px;
}

nav {
  display: flex;
  gap: 15px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

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

.logout-btn {
  background: #ef4444;
  padding: 8px 14px;
  border-radius: 6px;
}

header img.logo {
  height: 42px;
  width: auto;
  margin-right: 10px;
}