/* ===== HEADER ===== */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
  background-color: transparent;
}

/* состояние при скролле */
#header.scrolled {
   background-color: rgba(255,255,255,0.95); 
  box-shadow: 0 2px 12px rgba(0,0,0,0.0);
}

  #header img {
    max-height: 100px;
  }
}