/* === GLASS MORPHISM BOTTOM BAR - NEO.FLOWOFF === */
/* CSS complementar para o glass morphism bottom bar */

:root {
  --neon: #ff2fb3; /* rosa */
  --vio: #7a2cff;  /* roxo */
  --blue: #00d0ff; /* azul ciano */
  --glass-bg: rgba(10, 10, 16, 0.85);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-shadow: rgba(0, 0, 0, 0.3);
}

/* === GLASS MORPHISM BOTTOM BAR === */
.glass-morphism-tabbar {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 101;
  padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  
  /* Glass morphism effect moderno */
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.12) 0%,
    rgba(255, 255, 255, 0.06) 100%
  );
  backdrop-filter: saturate(1.8) blur(40px);
  -webkit-backdrop-filter: saturate(1.8) blur(40px);
  
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 28px;
  box-shadow: 
    0 12px 48px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* === NAVIGATION ITEMS === */
.glass-nav-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 14px 10px;
  border-radius: 20px;
  background: transparent;
  border: none;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

.glass-nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px) scale(1.05);
}

.glass-nav-item.active {
  background: linear-gradient(
    135deg,
    rgba(255, 47, 179, 0.15) 0%,
    rgba(122, 44, 255, 0.15) 100%
  );
  transform: translateY(-3px) scale(1.08);
  box-shadow: 
    0 8px 24px rgba(255, 47, 179, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* === SPECIAL START BUTTON === */
.glass-nav-item.start-button {
  background: transparent;
  border: none;
  box-shadow: none;
  transform: none;
  position: relative;
}

.glass-nav-item.start-button::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 22px;
  background: linear-gradient(
    135deg,
    rgba(255, 47, 179, 0.2),
    rgba(122, 44, 255, 0.2),
    rgba(0, 208, 255, 0.2)
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
}

.glass-nav-item.start-button:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px) scale(1.05);
}

.glass-nav-item.start-button:hover::before {
  opacity: 1;
}

.glass-nav-item.start-button.active {
  background: linear-gradient(
    135deg,
    rgba(255, 47, 179, 0.2) 0%,
    rgba(122, 44, 255, 0.2) 50%,
    rgba(0, 208, 255, 0.2) 100%
  );
}

/* === ICONS === */
.glass-nav-icon {
  width: 26px;
  height: 26px;
  margin-bottom: 6px;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.glass-nav-icon svg {
  width: 100%;
  height: 100%;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Ícones normais - cinza suave */
.glass-nav-icon svg {
  color: rgba(154, 160, 170, 0.8);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Ícones ativos - gradiente neon */
.glass-nav-item.active .glass-nav-icon svg {
  color: #ffffff;
  filter: 
    drop-shadow(0 0 8px rgba(255, 47, 179, 0.8))
    drop-shadow(0 0 16px rgba(122, 44, 255, 0.6));
  transform: scale(1.1);
}

/* Botão especial "Iniciar" - mesmo tamanho dos outros */
.glass-nav-item.start-button .glass-nav-icon {
  width: 20px;
  height: 20px;
}

.glass-nav-item.start-button .glass-nav-icon svg {
  color: #9aa0aa; /* cinza - igual aos outros */
  filter: drop-shadow(0 0 8px rgba(255, 47, 179, 0.3));
}

/* Hover effect para ícones */
.glass-nav-item:hover .glass-nav-icon svg {
  color: rgba(230, 230, 240, 0.95);
  filter: 
    drop-shadow(0 0 6px rgba(255, 47, 179, 0.5))
    drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
  transform: scale(1.05);
}

.glass-nav-item.start-button:hover .glass-nav-icon svg {
  color: rgba(230, 230, 240, 0.95);
  filter: 
    drop-shadow(0 0 6px rgba(255, 47, 179, 0.5))
    drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
  transform: scale(1.05);
}

/* === LABELS === */
.glass-nav-label {
  font-size: 10px;
  font-weight: 700;
  color: rgba(154, 160, 170, 0.9);
  text-align: center;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.glass-nav-item.active .glass-nav-label {
  color: #ffffff;
  text-shadow: 
    0 0 8px rgba(255, 47, 179, 0.8),
    0 2px 4px rgba(0, 0, 0, 0.3);
  transform: scale(1.05);
}

.glass-nav-item.start-button .glass-nav-label {
  color: rgba(230, 230, 240, 0.8); /* igual aos outros */
  font-weight: 600; /* igual aos outros */
  text-shadow: none;
}

/* === INDICATOR === */
.glass-nav-indicator {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--neon) 0%,
    var(--vio) 50%,
    var(--blue) 100%
  );
  border-radius: 3px;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 
    0 0 12px rgba(255, 47, 179, 0.6),
    0 0 24px rgba(122, 44, 255, 0.4);
}

.glass-nav-item.active .glass-nav-indicator {
  opacity: 1;
  animation: indicatorGlow 3s ease-in-out infinite;
}

@keyframes indicatorGlow {
  0%, 100% {
    box-shadow: 
      0 0 12px rgba(255, 47, 179, 0.6),
      0 0 24px rgba(122, 44, 255, 0.4);
    transform: translateX(-50%) scaleX(1);
  }
  50% {
    box-shadow: 
      0 0 16px rgba(255, 47, 179, 0.8),
      0 0 32px rgba(122, 44, 255, 0.6),
      0 0 48px rgba(0, 208, 255, 0.4);
    transform: translateX(-50%) scaleX(1.1);
  }
}

/* === SHIMMER EFFECT === */
.glass-nav-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg, 
    transparent 0%, 
    rgba(255, 255, 255, 0.15) 50%, 
    transparent 100%
  );
  transition: left 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.glass-nav-item:hover::before {
  left: 100%;
}

.glass-nav-item.active::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: linear-gradient(
    135deg,
    rgba(255, 47, 179, 0.1) 0%,
    transparent 50%,
    rgba(122, 44, 255, 0.1) 100%
  );
  pointer-events: none;
}

/* === MOBILE OPTIMIZATION === */
@media (max-width: 768px) {
  .glass-morphism-tabbar {
    left: 8px;
    right: 8px;
    bottom: 8px;
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
    gap: 4px;
    border-radius: 24px;
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .glass-nav-item {
    padding: 12px 8px;
  }

  .glass-nav-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 4px;
  }

  .glass-nav-item.start-button .glass-nav-icon {
    width: 24px;
    height: 24px;
  }

  .glass-nav-label {
    font-size: 9px;
    letter-spacing: 0.6px;
  }
}

/* Otimização para telas muito pequenas */
@media (max-width: 360px) {
  .glass-morphism-tabbar {
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
    gap: 4px;
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  
  .glass-nav-item {
    padding: 8px 4px;
  }
  
  .glass-nav-icon {
    width: 18px;
    height: 18px;
  }
  
  .glass-nav-item.start-button .glass-nav-icon {
    width: 18px;
    height: 18px;
  }
  
  .glass-nav-label {
    font-size: 9px;
  }
}

/* === ACCESSIBILITY === */
@media (prefers-reduced-motion: reduce) {
  .glass-nav-item,
  .glass-nav-icon,
  .glass-nav-label,
  .glass-nav-indicator {
    transition: none;
  }
  
  .glass-nav-item::before {
    display: none;
  }
  
  @keyframes indicatorGlow {
    0%, 100% {
      box-shadow: 0 2px 8px rgba(255, 47, 179, 0.4);
    }
  }
}

/* === RIPPLE EFFECT === */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.6;
  }
  100% {
    transform: scale(2.5);
    opacity: 0;
  }
}

.glass-nav-item:active::after {
  content: '';
  position: absolute;
  inset: 50%;
  width: 20px;
  height: 20px;
  margin: -10px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 47, 179, 0.4) 0%,
    transparent 70%
  );
  animation: ripple 0.6s ease-out;
  pointer-events: none;
}

/* === DARK MODE SUPPORT === */
@media (prefers-color-scheme: dark) {
  .glass-morphism-tabbar {
    background: linear-gradient(
      180deg, 
      rgba(255, 255, 255, 0.1) 0%,
      rgba(255, 255, 255, 0.05) 100%
    );
    border-color: rgba(255, 255, 255, 0.2);
  }
}

/* === HIGH CONTRAST MODE === */
/* Removido prefers-contrast por incompatibilidade com alguns navegadores */