.loader {
    display: none;
    width: 40px;
    height: 40px;
    border: 4px solid #eee;
    border-top: 4px solid #0070c9;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    /*margin: 15px auto;*/
    margin: 45px auto 0px auto;
  }
  
  @keyframes spin {
    100% { transform: rotate(360deg); }
  }

  .tracking-history {
    list-style: none;
    padding: 0;
  }
  
  .tracking-history li {
    background: #ffffff;
    padding: 10px;
    margin-bottom: 8px;
    border-left: 3px solid #0070c9;
  }
  


  
.tracking-wrapper {
  max-width: 600px;
  /*margin: 0 auto;*/
}

.tracking-form {
  display: flex;
  align-items: center;
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* INPUT */
.tracking-input {
  flex: 1;
  padding: 18px 20px;
  font-size: 18px;
  border: none;
  outline: none;
  color: #333;
}

.tracking-input::placeholder {
  color: #888;
}

/* BUTTON */
.tracking-btn {
  /*background-color: var(--lt-color-theme-primary);*/
  background-color: var(--lt-color-theme-secondary);
  color: #ffffff;
  font-size: 18px;
  font-weight: 600;
  padding: 15px 32px;
  border: none;
  cursor: pointer;
  transition: background 0.3s ease;

  /* ORIGINAL STYLES YOU MENTIONED */
  margin: 0.2rem;
  border-bottom-left-radius: 0;
  border-top-left-radius: 0;
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
}

.tracking-btn:hover {
  /*background-color: var(--lt-color-theme-primary);*/
  background-color: var(--lt-color-theme-secondary);
}

/* RESPONSIVE */
@media (max-width: 600px) {
  .tracking-form {
    flex-direction: column;
  }

  .tracking-input {
    width: 100%;
    padding: 15px;
    border-radius: 8px 8px 0 0;
    margin: 0; /* Remove extra spacing for stacked layout */
  }

  .tracking-btn {
    width: 100%;
    padding: 15px;
    border-radius: 0 0 8px 8px;
    margin: 0; /* Remove desktop margin for mobile */
  }
}