.flash {
  padding: 0;
  margin-bottom: 1rem;
  border: none;
  font-size: 0.875rem;
  color: var(--color-text);
  background: transparent;
  font-family: var(--font-family-mono);
  opacity: 1;
  transition: opacity 0.3s ease-in-out;
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  min-width: 28rem;
  max-width: 40rem;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
}

.flash-header {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-bottom: none;
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.flash-prefix {
  color: var(--color-text-subtle);
}

.flash-prefix::after {
  content: ":";
  margin-left: 0.25rem;
}

.flash-type {
  font-weight: 700;
}

.flash-message {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-top: none;
  padding: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.4;
}

.flash--notice {
  animation: flashPulse 0.6s ease-out;
}

.flash--notice .flash-header {
  border-color: var(--color-positive);
  background: var(--color-bg);
}

.flash--notice .flash-message {
  border-color: var(--color-positive);
  background: var(--color-bg);
}

.flash--notice .flash-type {
  color: var(--color-positive);
}

.flash--alert {
  animation: flashShake 0.5s ease-out;
}

.flash--alert .flash-header {
  border-color: var(--color-negative);
  background: var(--color-bg);
}

.flash--alert .flash-message {
  border-color: var(--color-negative);
  background: var(--color-bg);
}

.flash--alert .flash-type {
  color: var(--color-negative);
}

.flash.hiding {
  opacity: 0;
}

@keyframes flashPulse {
  0% { 
    transform: translateX(-50%) scale(0.95);
    opacity: 0;
  }
  50% {
    transform: translateX(-50%) scale(1.02);
  }
  100% { 
    transform: translateX(-50%) scale(1);
    opacity: 1;
  }
}

@keyframes flashShake {
  0% { 
    transform: translateX(-50%) translateY(0);
    opacity: 0;
  }
  25% { 
    transform: translateX(-50%) translateY(-2px);
    opacity: 0.7;
  }
  75% { 
    transform: translateX(-50%) translateY(2px);
    opacity: 0.9;
  }
  100% { 
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .flash {
    min-width: calc(100vw - 2rem);
    max-width: calc(100vw - 2rem);
    left: 1rem;
    transform: none;
  }
  
  .flash--notice {
    animation: flashPulseMobile 0.6s ease-out;
  }
  
  .flash--alert {
    animation: flashShakeMobile 0.5s ease-out;
  }
  
  @keyframes flashPulseMobile {
    0% { 
      transform: scale(0.95);
      opacity: 0;
    }
    50% {
      transform: scale(1.02);
    }
    100% { 
      transform: scale(1);
      opacity: 1;
    }
  }
  
  @keyframes flashShakeMobile {
    0% { 
      transform: translateY(0);
      opacity: 0;
    }
    25% { 
      transform: translateY(-2px);
      opacity: 0.7;
    }
    75% { 
      transform: translateY(2px);
      opacity: 0.9;
    }
    100% { 
      transform: translateY(0);
      opacity: 1;
    }
  }
}