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

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  background: #fff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
  margin-right: 10px;
}

.languages img {
  height: 26px;
  margin-left: 10px;
}

/* JEDINÁ definice menu-bar */
.menu-bar {
  display: flex;
  justify-content: flex-start; /* místo center */
  overflow-x: auto;
  white-space: nowrap;
  background: #fff;
  border-bottom: 2px solid #ced4da;
  position: relative;
  padding: 10px 0; /* fix: nahoře/dole jen 10px */
}

.menu-bar button {
  background: none;
  border: none;
  margin: 0 5px;
  font-size: 20px;
  cursor: pointer;
  padding: 5px 5px;
  position: relative;
  z-index: 1;
}

.menu-bar button.active-btn {
  background: #f0f0f0;
  border: none;
  margin-bottom: -2px; /* překryje border-bottom */
  z-index: 2;
}

.menu-bar button:hover {
  opacity: 0.8;
}

.menu-section {
  background: #ced4da;
  padding: 2rem;
  width: 100%;
}

.hero {
  width: 100%;
  height: 600px;
  background: url('../img/menu.png') center/cover no-repeat; /* uprav cestu */
  display: flex;
  justify-content: center;
  align-items: center;
}

.darkblue {
  color: #04356f;
  font-weight: bolder;
  font-size: 1rem;
}
.lightblue {
  color: #009fe3;
  font-weight: bolder;
  font-size: 1rem;
}

button.btn.btn-cdr {
    background-color: #009fe3;
    border-color: #009fe3;
    color: #fff;
}

button.btn.btn-cdr:hover,
button.btn.btn-cdr:focus {
    background-color: #0089c7;
    border-color: #0089c7;
    color: #fff;
}