/* Button Components - Design Guidelines Compliant */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-md);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: clamp(0.9rem, 2vw + 0.5rem, 1rem);
  line-height: 18px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 44px;
  box-sizing: border-box;
  white-space: nowrap;
}

/* Primary Button */
.btn-primary {
  background: var(--brand-2);
  color: #2D3748;
}

.btn-primary:hover {
  background: var(--dark-accent-light-blue);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(154, 215, 243, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  background: var(--dark-card-bg);
  color: var(--dark-text-secondary);
  border: 1px solid var(--dark-border);
}

.btn-secondary:hover {
  background: var(--dark-hover);
  color: var(--dark-text-primary);
  border-color: var(--brand-2);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* Success Button */
.btn-success {
  background: var(--brand-3);
  color: #2D3748;
}

.btn-success:hover {
  background: #7AE3C7;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(148, 239, 213, 0.3);
}

.btn-success:active {
  transform: translateY(0);
}

/* Warning Button */
.btn-warning {
  background: #F39C12;
  color: white;
}

.btn-warning:hover {
  background: #E67E22;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.btn-warning:active {
  transform: translateY(0);
}

/* Danger Button */
.btn-danger {
  background: var(--brand-1);
  color: #2D3748;
}

.btn-danger:hover {
  background: #F8A5A8;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(254, 195, 199, 0.3);
}

.btn-danger:active {
  transform: translateY(0);
}

/* Button Sizes */
.btn-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: clamp(0.8rem, 1.5vw + 0.3rem, 0.875rem);
  line-height: 16px;
  min-height: 36px;
  min-width: 36px;
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: clamp(1rem, 2.5vw + 0.5rem, 1.125rem);
  line-height: 20px;
  min-height: 52px;
}

/* Icon Button */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--border-radius-md);
  background: var(--dark-card-bg);
  color: var(--dark-text-secondary);
  border: 1px solid var(--dark-border);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 44px;
}

.icon-btn:hover {
  background: var(--dark-hover);
  color: var(--dark-text-primary);
  border-color: var(--brand-2);
  transform: translateY(-1px);
}

.icon-btn:active {
  transform: translateY(0);
}

/* Button Groups */
.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.btn-group .btn {
  flex: 1;
}

/* Disabled State */
.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn:disabled:hover,
.btn.disabled:hover {
  transform: none;
  box-shadow: none;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
  }
  
  .btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
  }
  
  .btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
  }
  
  .btn-group {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .btn-group .btn {
    width: 100%;
  }
}

/* Touch-friendly improvements */
@media (max-width: 768px) {
  .btn,
  .icon-btn {
    -webkit-tap-highlight-color: rgba(154, 215, 243, 0.3);
    user-select: none;
  }
}