/* Gradient Classes */
.gradient-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.text-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Mobile Menu */
.mobile-menu{display:none}.mobile-menu.open{display:block}.hamburger{display:none}@media (max-width:767px){.hamburger{display:block}}.hamburger span{display:block;width:25px;height:3px;background:#374151;margin:5px 0;transition:.3s}.hamburger.open span:nth-child(1){transform:rotate(-45deg) translate(-5px,6px)}.hamburger.open span:nth-child(2){opacity:0}.hamburger.open span:nth-child(3){transform:rotate(45deg) translate(-5px,-6px)}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* WhatsApp Button */
.whatsapp-button {
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: 60px;
  height: 60px;
  background: #25d366;
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 1;
  visibility: visible;
  transition: all 0.3s ease;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.whatsapp-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
  background: #20ba5a;
}

.whatsapp-button svg {
  width: 28px;
  height: 28px;
}

/* Hide Header on Scroll */
header.hide-on-scroll {
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}

header.show-on-scroll {
  transform: translateY(0);
  transition: transform 0.3s ease;
}