.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--color-primary-gradient);
  color: white;
  box-shadow: var(--shadow-btn-primary);
}

.btn-primary:hover {
  transform: scale(1.02);
}

.btn-success {
  background: var(--color-success-gradient);
  color: white;
  box-shadow: var(--shadow-btn-success);
}

.btn-success:hover {
  transform: scale(1.02);
}

.btn-danger {
  background: var(--color-danger-gradient);
  color: white;
  box-shadow: var(--shadow-btn-danger);
}

.btn-danger:hover {
  transform: scale(1.02);
}

.btn-warning {
  background: var(--color-warning-gradient);
  color: white;
  box-shadow: 0 3px 5px -1px rgba(255,167,38,.2);
}

.btn-warning:hover {
  transform: scale(1.02);
}

.btn-secondary {
  background: var(--color-bg-gray-light);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg-gray);
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 8px;
  justify-content: center;
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn-sm svg {
  width: 14px;
  height: 14px;
}

.btn-lg {
  padding: 12px 32px;
  font-size: var(--font-size-md);
}

.btn-lg svg {
  width: 18px;
  height: 18px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}