/* =========================================
   EFEITOS VISUAIS E MICROINTERAÇÕES (LIQUID)
   ========================================= */

/* =========================================
   Preloader Lógico e Elegante
   ========================================= */
#liquid-preloader {
  position: fixed;
  inset: 0;
  z-index: 999999;
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.8s ease-in-out, visibility 0.8s;
}

#liquid-preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.liquid-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 130vh;
  background: linear-gradient(180deg, var(--color-secondary) 0%, #591637 100%);
  transform: translateY(-100%);
  animation: liquidDrop 2.2s cubic-bezier(0.7, 0, 0.3, 1) forwards;
  z-index: 1;
}

@keyframes liquidDrop {
  0% {
    transform: translateY(-100%);
    border-bottom-left-radius: 50vw 180px;
    border-bottom-right-radius: 50vw 180px;
  }
  60% {
    border-bottom-left-radius: 50vw 40px;
    border-bottom-right-radius: 50vw 40px;
  }
  100% {
    transform: translateY(0%);
    border-radius: 0;
  }
}

.preloader-brand {
  position: relative;
  z-index: 2;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--color-white);
  font-weight: 800;
  letter-spacing: 2px;
  opacity: 0;
  animation: liquidFadeIn 2.4s ease-in-out forwards;
  animation-delay: 0.4s;
}

.preloader-brand span {
  color: var(--color-primary);
}

@keyframes liquidFadeIn {
  0% { opacity: 0; transform: translateY(20px); filter: blur(4px); }
  35% { opacity: 1; transform: translateY(0); filter: blur(0); }
  75% { opacity: 1; transform: translateY(0); filter: blur(0); }
  100% { opacity: 0; transform: translateY(-10px); filter: blur(2px); }
}

@media (prefers-reduced-motion: reduce) {
  .liquid-bg { animation: none; transform: translateY(0); }
  .preloader-brand { animation: none; opacity: 1; }
}

/* =========================================
   Microinterações Fluídas - Global
   ========================================= */

/* Divisória Fluida no Hero */
.hero-fluid-divider {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: clamp(60px, 8vw, 120px);
  fill: var(--color-white);
  z-index: 1; 
  pointer-events: none;
}

/* Hover Líquido nos Botões */
.btn-primary {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 300%;
  height: 300%;
  background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
  transform: translate(-50%, 100%);
  border-radius: 50%;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}

.btn-primary:hover::before {
  transform: translate(-50%, -20%);
}

/* Efeito Hover nos Cards de Tecnologia */
.card-tech {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.card-tech:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 30px rgba(31, 36, 48, 0.08); /* Float effect */
}

/* Elementos Pulsantes (Pins de Mapa / Notificações) */
@keyframes pinPulse {
  0% { box-shadow: 0 0 0 0 rgba(242, 138, 0, 0.3); }
  70% { box-shadow: 0 0 0 15px rgba(242, 138, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(242, 138, 0, 0); }
}

.pin-pulse {
  animation: pinPulse 2s infinite cubic-bezier(0.66, 0, 0, 1);
  border-radius: 50%;
}