body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  scroll-behavior: smooth;
}

/* Hero Gradient Animation */
.hero-section {
  min-height: 100vh;
  padding-top: 100px;
  background: linear-gradient(270deg, #28a745, #20c997, #198754, #2ecc71);
  background-size: 800% 800%;
  animation: gradientShift 15s ease infinite;
}
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Floating WhatsApp Button with pulse */
.wa-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 20px;
  right: 20px;
  background-color: #25D366;
  color: #fff;
  border-radius: 50%;
  font-size: 28px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.25);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite;
}
.wa-float:hover {
  transform: scale(1.1);
  color: #fff;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6); }
  70% { box-shadow: 0 0 0 20px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Hover Cards */
.hover-up {
  transition: all 0.4s ease;
}
.hover-up:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

/* Step Card */
.step-card {
  background: #fff;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.step-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

/* Animate Float */
.animate-float {
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-14px); }
  100% { transform: translateY(0px); }
}

/* Mobile typography */
h1 { font-size: 1.9rem; }
h2 { font-size: 1.4rem; }
.lead { font-size: 1rem; }
@media (min-width: 768px) {
  h1 { font-size: 2.6rem; }
  h2 { font-size: 2rem; }
  .lead { font-size: 1.2rem; }
}


/* Logo grayscale hover */
.grayscale-hover {
  filter: grayscale(100%);
  transition: filter 0.3s ease;
}
.grayscale-hover:hover {
  filter: grayscale(0%);
}

/* Carousel testimoni */
#testimoni .card {
  border-radius: 20px;
  border: none;
}

/* Counter animasi (opsional jika mau efek angka naik via JS) */
.counter {
  font-size: 2rem;
  transition: all 0.3s ease;
}