header a {
  text-decoration: none !important;
}

header .logo {
  font-size: 34px;
  font-weight: 900;
  color: #000000;
  text-decoration: none !important;
  letter-spacing: 0.5px;
}

header .navigation a {
  font-size: 18px;
  font-weight: 600;
  color: #000000;
  text-decoration: none !important;
  transition: color 0.2s ease, transform 0.15s ease;
  padding: 6px 10px;
  border-radius: 10px;
}

header .navigation a:hover {
  color: #00a9e8;
  transform: translateY(-2px);
}

header .navigation li {
  list-style: none;
  margin: 0;
}

header .navigation {
  display: flex;
  align-items: center;
  gap: 20px;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;   
  height: 90px;
  background-color: #ffffff !important;
  z-index: 10000;    
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 2px solid #eaeaea;
}

header .logo {
  background: linear-gradient(90deg, #ff0000, #0000ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;

  font-size: 34px;
  font-weight: 900;
  text-decoration: none !important;
  letter-spacing: 0.5px;
}

.online-btn {
  background-color: #25b5f8;
  color: white !important;
  padding: 15px 40px; 
  font-size: 15px;  
  border: 7px solid #25b5f8;
  border-radius: 9999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.12s ease-in-out, box-shadow 0.12s ease-in-out;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: inline-block;
  line-height: 1;
}

.online-btn:hover,
.online-btn:focus,
.online-btn:active {
  transform: translateY(2px);
  color: white !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}