* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--md-font-body);
  background-color: var(--md-surface);
  color: var(--md-on-surface);
  line-height: 1.5;
  margin: 0;
  padding: 0;
  transition: background-color var(--animation-medium) ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
}

.app-bar {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 4px var(--md-shadow);
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-title {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.app-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

.section-title {
  font-family: var(--md-font-display);
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--md-on-surface);
  letter-spacing: -0.02em;
}

/* Compounds grid */
.compounds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .compounds-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
  
  .button-group {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .compounds-grid {
    grid-template-columns: 1fr;
  }
}

.date-display {
  position: fixed;
  bottom: 8px;
  left: 8px;
  font-size: 12px;
  color: var(--md-outline);
  background-color: var(--md-surface-2);
  padding: 4px 8px;
  border-radius: 4px;
  opacity: 0.8;
  z-index: 5;
}

#confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1000;
}