/*
 * Animação de Fundo Premium - BrevaIA
 * Desenvolvido para criar uma identidade visual elegante e moderna
 * Características: gradientes fluidos, partículas sutis, movimento orgânico
 * Otimizado para performance e responsividade
 */

/* Container principal da animação */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  background: linear-gradient(-45deg, #0f172a, #1e293b, #0c4a6e, #1e40af);
  background-size: 400% 400%;
  animation: gradientShift 20s ease infinite;
}

/* Animação de deslocamento do gradiente */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Camada de sobreposição sutil para profundidade */
.background-animation::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.3) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(99, 102, 241, 0.2) 0%, transparent 50%),
              radial-gradient(circle at 40% 40%, rgba(100, 255, 218, 0.1) 0%, transparent 50%);
  animation: overlayPulse 15s ease-in-out infinite;
}

/* Animação de pulsação da sobreposição */
@keyframes overlayPulse {
  0%, 100% {
    opacity: 0.7;
  }
  50% {
    opacity: 1;
  }
}

/* Container para partículas */
.particles-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Partículas individuais */
.particle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.6) 0%, rgba(59, 130, 246, 0) 70%);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
  animation: float 6s ease-in-out infinite;
}

/* Animação de flutuação das partículas */
@keyframes float {
  0%, 100% {
    transform: translateY(0px) scale(1);
    opacity: 0.8;
  }
  50% {
    transform: translateY(-20px) scale(1.1);
    opacity: 1;
  }
}

/* Ondas fluidas animadas */
.wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z' opacity='.25' fill='%233b82f6'%3E%3C/path%3E%3Cpath d='M0,0V15.81C13,36.92,27.64,56.86,47.69,72.05,99.41,111.27,165,111,224.58,91.58c31.15-10.15,60.09-26.07,89.67-39.8,40.92-19,84.73-46,130.83-49.67,36.26-2.85,70.9,9.42,98.6,31.56,31.77,25.39,62.32,62,103.63,73,40.44,10.79,81.35-6.69,119.13-24.28s75.16-39,116.92-43.05c59.73-5.85,113.28,22.88,168.9,38.84,30.2,8.66,59,6.17,87.09-7.5,22.43-10.89,48-26.93,60.65-49.24V0Z' opacity='.5' fill='%233b82f6'%3E%3C/path%3E%3Cpath d='M0,0V5.63C149.93,59,314.09,71.32,475.83,42.57c43-7.64,84.23-20.12,127.61-26.46,59-8.63,112.48,12.24,165.56,35.4C827.93,77.22,886,95.24,951.2,90c86.53-7,172.46-45.71,248.8-84.81V0Z' fill='%233b82f6'%3E%3C/path%3E%3C/svg%3E");
  background-size: cover;
  animation: wave 10s linear infinite;
}

/* Animação da onda */
@keyframes wave {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-1200px);
  }
}

/* Elementos de brilho sutil */
.glow {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(100, 255, 218, 0.3) 0%, transparent 70%);
  filter: blur(40px);
  animation: glowPulse 8s ease-in-out infinite;
}

/* Animação do brilho */
@keyframes glowPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.5);
    opacity: 0.8;
  }
}

/* Responsividade para dispositivos móveis */
@media (max-width: 768px) {
  .background-animation {
    animation-duration: 15s;
  }
  
  .wave {
    height: 50px;
  }
  
  .particle {
    display: none; /* Ocultar partículas em dispositivos móveis para melhor performance */
  }
}

/* Otimização para dispositivos com preferência de movimento reduzido */
@media (prefers-reduced-motion: reduce) {
  .background-animation,
  .background-animation::before,
  .particle,
  .wave,
  .glow {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* Camada de sobreposição para garantir legibilidade do conteúdo */
.content-overlay {
  position: relative;
  z-index: 1;
  background: rgba(15, 23, 42, 0.1);
  backdrop-filter: blur(0.5px);
  -webkit-backdrop-filter: blur(0.5px);
}